Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; version 2 of the License. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 15 | #include <commonlib/helpers.h> |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 16 | #include <console/console.h> |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 17 | #include <string.h> |
Subrata Banik | 53b08c3 | 2018-12-10 14:11:35 +0530 | [diff] [blame] | 18 | #include <arch/cpu.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 19 | #include <device/mmio.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 20 | #include <device/pci_ops.h> |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 21 | #include <northbridge/intel/sandybridge/chip.h> |
| 22 | #include <device/pci_def.h> |
| 23 | #include <delay.h> |
Elyes HAOUAS | 1d3b3c3 | 2019-05-04 08:12:42 +0200 | [diff] [blame] | 24 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 25 | #include "raminit_native.h" |
| 26 | #include "raminit_common.h" |
Angel Pons | 7f6586f | 2020-03-21 12:45:12 +0100 | [diff] [blame] | 27 | #include "raminit_tables.h" |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 28 | #include "sandybridge.h" |
| 29 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 30 | /* FIXME: no ECC support */ |
| 31 | /* FIXME: no support for 3-channel chipsets */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 32 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 33 | /* length: [1..4] */ |
| 34 | #define IOSAV_RUN_ONCE(length) ((((length) - 1) << 18) | 1) |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 35 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 36 | static void sfence(void) |
| 37 | { |
| 38 | asm volatile ("sfence"); |
| 39 | } |
| 40 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 41 | /* Toggle IO reset bit */ |
| 42 | static void toggle_io_reset(void) |
| 43 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 44 | u32 r32 = MCHBAR32(MC_INIT_STATE_G); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 45 | MCHBAR32(MC_INIT_STATE_G) = r32 | 0x20; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 46 | udelay(1); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 47 | MCHBAR32(MC_INIT_STATE_G) = r32 & ~0x20; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 48 | udelay(1); |
| 49 | } |
| 50 | |
| 51 | static u32 get_XOVER_CLK(u8 rankmap) |
| 52 | { |
| 53 | return rankmap << 24; |
| 54 | } |
| 55 | |
| 56 | static u32 get_XOVER_CMD(u8 rankmap) |
| 57 | { |
| 58 | u32 reg; |
| 59 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 60 | /* Enable xover cmd */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 61 | reg = 0x4000; |
| 62 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 63 | /* Enable xover ctl */ |
| 64 | if (rankmap & 0x03) |
| 65 | reg |= (1 << 17); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 66 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 67 | if (rankmap & 0x0c) |
| 68 | reg |= (1 << 26); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 69 | |
| 70 | return reg; |
| 71 | } |
| 72 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 73 | /* CAS write latency. To be programmed in MR2. See DDR3 SPEC for MR2 documentation. */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 74 | u8 get_CWL(u32 tCK) |
| 75 | { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 76 | /* Get CWL based on tCK using the following rule */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 77 | switch (tCK) { |
| 78 | case TCK_1333MHZ: |
| 79 | return 12; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 80 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 81 | case TCK_1200MHZ: |
| 82 | case TCK_1100MHZ: |
| 83 | return 11; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 84 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 85 | case TCK_1066MHZ: |
| 86 | case TCK_1000MHZ: |
| 87 | return 10; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 88 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 89 | case TCK_933MHZ: |
| 90 | case TCK_900MHZ: |
| 91 | return 9; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 92 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 93 | case TCK_800MHZ: |
| 94 | case TCK_700MHZ: |
| 95 | return 8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 96 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 97 | case TCK_666MHZ: |
| 98 | return 7; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 99 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 100 | case TCK_533MHZ: |
| 101 | return 6; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 102 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 103 | default: |
| 104 | return 5; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | void dram_find_common_params(ramctr_timing *ctrl) |
| 109 | { |
| 110 | size_t valid_dimms; |
| 111 | int channel, slot; |
| 112 | dimm_info *dimms = &ctrl->info; |
| 113 | |
| 114 | ctrl->cas_supported = (1 << (MAX_CAS - MIN_CAS + 1)) - 1; |
| 115 | valid_dimms = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 116 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 117 | FOR_ALL_CHANNELS for (slot = 0; slot < 2; slot++) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 118 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 119 | const dimm_attr *dimm = &dimms->dimm[channel][slot]; |
| 120 | if (dimm->dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) |
| 121 | continue; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 122 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 123 | valid_dimms++; |
| 124 | |
| 125 | /* Find all possible CAS combinations */ |
| 126 | ctrl->cas_supported &= dimm->cas_supported; |
| 127 | |
| 128 | /* Find the smallest common latencies supported by all DIMMs */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 129 | ctrl->tCK = MAX(ctrl->tCK, dimm->tCK); |
| 130 | ctrl->tAA = MAX(ctrl->tAA, dimm->tAA); |
| 131 | ctrl->tWR = MAX(ctrl->tWR, dimm->tWR); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 132 | ctrl->tRCD = MAX(ctrl->tRCD, dimm->tRCD); |
| 133 | ctrl->tRRD = MAX(ctrl->tRRD, dimm->tRRD); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 134 | ctrl->tRP = MAX(ctrl->tRP, dimm->tRP); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 135 | ctrl->tRAS = MAX(ctrl->tRAS, dimm->tRAS); |
| 136 | ctrl->tRFC = MAX(ctrl->tRFC, dimm->tRFC); |
| 137 | ctrl->tWTR = MAX(ctrl->tWTR, dimm->tWTR); |
| 138 | ctrl->tRTP = MAX(ctrl->tRTP, dimm->tRTP); |
| 139 | ctrl->tFAW = MAX(ctrl->tFAW, dimm->tFAW); |
Dan Elkouby | dabebc3 | 2018-04-13 18:47:10 +0300 | [diff] [blame] | 140 | ctrl->tCWL = MAX(ctrl->tCWL, dimm->tCWL); |
| 141 | ctrl->tCMD = MAX(ctrl->tCMD, dimm->tCMD); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | if (!ctrl->cas_supported) |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 145 | die("Unsupported DIMM combination. DIMMS do not support common CAS latency"); |
| 146 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 147 | if (!valid_dimms) |
| 148 | die("No valid DIMMs found"); |
| 149 | } |
| 150 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 151 | void dram_xover(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 152 | { |
| 153 | u32 reg; |
| 154 | int channel; |
| 155 | |
| 156 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 157 | /* Enable xover clk */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 158 | reg = get_XOVER_CLK(ctrl->rankmap[channel]); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 159 | printram("XOVER CLK [%x] = %x\n", GDCRCKPICODE_ch(channel), reg); |
| 160 | MCHBAR32(GDCRCKPICODE_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 161 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 162 | /* Enable xover ctl & xover cmd */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 163 | reg = get_XOVER_CMD(ctrl->rankmap[channel]); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 164 | printram("XOVER CMD [%x] = %x\n", GDCRCMDPICODING_ch(channel), reg); |
| 165 | MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 166 | } |
| 167 | } |
| 168 | |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 169 | static void dram_odt_stretch(ramctr_timing *ctrl, int channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 170 | { |
Angel Pons | 89ae6b8 | 2020-03-21 13:23:32 +0100 | [diff] [blame] | 171 | u32 addr, stretch; |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 172 | |
| 173 | stretch = ctrl->ref_card_offset[channel]; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 174 | /* |
| 175 | * ODT stretch: |
| 176 | * Delay ODT signal by stretch value. Useful for multi DIMM setups on the same channel. |
| 177 | */ |
Angel Pons | 89ae6b8 | 2020-03-21 13:23:32 +0100 | [diff] [blame] | 178 | if (IS_SANDY_CPU(ctrl->cpu) && IS_SANDY_CPU_C(ctrl->cpu)) { |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 179 | if (stretch == 2) |
| 180 | stretch = 3; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 181 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 182 | addr = SCHED_SECOND_CBIT_ch(channel); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 183 | MCHBAR32_AND_OR(addr, 0xffffc3ff, (stretch << 12) | (stretch << 10)); |
| 184 | printk(RAM_DEBUG, "OTHP Workaround [%x] = %x\n", addr, MCHBAR32(addr)); |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 185 | } else { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 186 | addr = TC_OTHP_ch(channel); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 187 | MCHBAR32_AND_OR(addr, 0xfff0ffff, (stretch << 16) | (stretch << 18)); |
Iru Cai | 89af71c | 2018-08-16 16:46:27 +0800 | [diff] [blame] | 188 | printk(RAM_DEBUG, "OTHP [%x] = %x\n", addr, MCHBAR32(addr)); |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 189 | } |
| 190 | } |
| 191 | |
| 192 | void dram_timing_regs(ramctr_timing *ctrl) |
| 193 | { |
| 194 | u32 reg, addr, val32; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 195 | int channel; |
| 196 | |
| 197 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 198 | /* BIN parameters */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 199 | reg = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 200 | reg |= (ctrl->tRCD << 0); |
| 201 | reg |= (ctrl->tRP << 4); |
| 202 | reg |= (ctrl->CAS << 8); |
| 203 | reg |= (ctrl->CWL << 12); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 204 | reg |= (ctrl->tRAS << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 205 | printram("DBP [%x] = %x\n", TC_DBP_ch(channel), reg); |
| 206 | MCHBAR32(TC_DBP_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 207 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 208 | /* Regular access parameters */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 209 | reg = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 210 | reg |= (ctrl->tRRD << 0); |
| 211 | reg |= (ctrl->tRTP << 4); |
| 212 | reg |= (ctrl->tCKE << 8); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 213 | reg |= (ctrl->tWTR << 12); |
| 214 | reg |= (ctrl->tFAW << 16); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 215 | reg |= (ctrl->tWR << 24); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 216 | reg |= (3 << 30); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 217 | printram("RAP [%x] = %x\n", TC_RAP_ch(channel), reg); |
| 218 | MCHBAR32(TC_RAP_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 219 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 220 | /* Other parameters */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 221 | addr = TC_OTHP_ch(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 222 | reg = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 223 | reg |= (ctrl->tXPDLL << 0); |
| 224 | reg |= (ctrl->tXP << 5); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 225 | reg |= (ctrl->tAONPD << 8); |
| 226 | reg |= 0xa0000; |
| 227 | printram("OTHP [%x] = %x\n", addr, reg); |
| 228 | MCHBAR32(addr) = reg; |
| 229 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 230 | /* FIXME: This register might as well not exist */ |
Angel Pons | 1aba2a3 | 2020-01-05 22:31:41 +0100 | [diff] [blame] | 231 | MCHBAR32(0x4014 + channel * 0x400) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 232 | |
Felix Held | 9fe248f | 2018-07-31 20:59:45 +0200 | [diff] [blame] | 233 | MCHBAR32_OR(addr, 0x00020000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 234 | |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 235 | dram_odt_stretch(ctrl, channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 236 | |
Patrick Rudolph | 5ee9bc1 | 2017-10-31 10:49:52 +0100 | [diff] [blame] | 237 | /* |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 238 | * TC-Refresh timing parameters: |
| 239 | * The tREFIx9 field should be programmed to minimum of 8.9 * tREFI (to allow |
| 240 | * for possible delays from ZQ or isoc) and tRASmax (70us) divided by 1024. |
Patrick Rudolph | 5ee9bc1 | 2017-10-31 10:49:52 +0100 | [diff] [blame] | 241 | */ |
| 242 | val32 = MIN((ctrl->tREFI * 89) / 10, (70000 << 8) / ctrl->tCK); |
| 243 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 244 | reg = ((ctrl->tREFI & 0xffff) << 0) | |
| 245 | ((ctrl->tRFC & 0x01ff) << 16) | (((val32 / 1024) & 0x7f) << 25); |
| 246 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 247 | printram("REFI [%x] = %x\n", TC_RFTP_ch(channel), reg); |
| 248 | MCHBAR32(TC_RFTP_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 249 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 250 | MCHBAR32_OR(TC_RFP_ch(channel), 0xff); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 251 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 252 | /* Self-refresh timing parameters */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 253 | reg = 0; |
| 254 | val32 = tDLLK; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 255 | reg = (reg & ~0x00000fff) | (val32 << 0); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 256 | val32 = ctrl->tXSOffset; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 257 | reg = (reg & ~0x0000f000) | (val32 << 12); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 258 | val32 = tDLLK - ctrl->tXSOffset; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 259 | reg = (reg & ~0x03ff0000) | (val32 << 16); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 260 | val32 = ctrl->tMOD - 8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 261 | reg = (reg & ~0xf0000000) | (val32 << 28); |
| 262 | printram("SRFTP [%x] = %x\n", TC_SRFTP_ch(channel), reg); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 263 | MCHBAR32(TC_SRFTP_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 264 | } |
| 265 | } |
| 266 | |
| 267 | void dram_dimm_mapping(ramctr_timing *ctrl) |
| 268 | { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 269 | int channel; |
| 270 | dimm_info *info = &ctrl->info; |
| 271 | |
| 272 | FOR_ALL_CHANNELS { |
Nico Huber | ac4f216 | 2017-10-01 18:14:43 +0200 | [diff] [blame] | 273 | dimm_attr *dimmA, *dimmB; |
| 274 | u32 reg = 0; |
| 275 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 276 | if (info->dimm[channel][0].size_mb >= info->dimm[channel][1].size_mb) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 277 | dimmA = &info->dimm[channel][0]; |
| 278 | dimmB = &info->dimm[channel][1]; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 279 | reg |= (0 << 16); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 280 | } else { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 281 | dimmA = &info->dimm[channel][1]; |
| 282 | dimmB = &info->dimm[channel][0]; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 283 | reg |= (1 << 16); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 284 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 285 | |
Nico Huber | ac4f216 | 2017-10-01 18:14:43 +0200 | [diff] [blame] | 286 | if (dimmA && (dimmA->ranks > 0)) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 287 | reg |= (dimmA->size_mb / 256) << 0; |
| 288 | reg |= (dimmA->ranks - 1) << 17; |
Nico Huber | ac4f216 | 2017-10-01 18:14:43 +0200 | [diff] [blame] | 289 | reg |= (dimmA->width / 8 - 1) << 19; |
| 290 | } |
| 291 | |
| 292 | if (dimmB && (dimmB->ranks > 0)) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 293 | reg |= (dimmB->size_mb / 256) << 8; |
| 294 | reg |= (dimmB->ranks - 1) << 18; |
Nico Huber | ac4f216 | 2017-10-01 18:14:43 +0200 | [diff] [blame] | 295 | reg |= (dimmB->width / 8 - 1) << 20; |
| 296 | } |
| 297 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 298 | reg |= 1 << 21; /* Rank interleave */ |
| 299 | reg |= 1 << 22; /* Enhanced interleave */ |
Nico Huber | ac4f216 | 2017-10-01 18:14:43 +0200 | [diff] [blame] | 300 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 301 | if ((dimmA && (dimmA->ranks > 0)) || (dimmB && (dimmB->ranks > 0))) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 302 | ctrl->mad_dimm[channel] = reg; |
| 303 | } else { |
| 304 | ctrl->mad_dimm[channel] = 0; |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 309 | void dram_dimm_set_mapping(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 310 | { |
| 311 | int channel; |
| 312 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 313 | MCHBAR32(MAD_DIMM(channel)) = ctrl->mad_dimm[channel]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 314 | } |
| 315 | } |
| 316 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 317 | void dram_zones(ramctr_timing *ctrl, int training) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 318 | { |
| 319 | u32 reg, ch0size, ch1size; |
| 320 | u8 val; |
| 321 | reg = 0; |
| 322 | val = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 323 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 324 | if (training) { |
| 325 | ch0size = ctrl->channel_size_mb[0] ? 256 : 0; |
| 326 | ch1size = ctrl->channel_size_mb[1] ? 256 : 0; |
| 327 | } else { |
| 328 | ch0size = ctrl->channel_size_mb[0]; |
| 329 | ch1size = ctrl->channel_size_mb[1]; |
| 330 | } |
| 331 | |
| 332 | if (ch0size >= ch1size) { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 333 | reg = MCHBAR32(MAD_ZR); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 334 | val = ch1size / 256; |
| 335 | reg = (reg & ~0xff000000) | val << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 336 | reg = (reg & ~0x00ff0000) | (2 * val) << 16; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 337 | MCHBAR32(MAD_ZR) = reg; |
Felix Held | dee167e | 2019-12-30 17:30:16 +0100 | [diff] [blame] | 338 | MCHBAR32(MAD_CHNL) = 0x24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 339 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 340 | } else { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 341 | reg = MCHBAR32(MAD_ZR); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 342 | val = ch0size / 256; |
| 343 | reg = (reg & ~0xff000000) | val << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 344 | reg = (reg & ~0x00ff0000) | (2 * val) << 16; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 345 | MCHBAR32(MAD_ZR) = reg; |
Felix Held | dee167e | 2019-12-30 17:30:16 +0100 | [diff] [blame] | 346 | MCHBAR32(MAD_CHNL) = 0x21; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 347 | } |
| 348 | } |
| 349 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 350 | #define DEFAULT_TCK TCK_800MHZ |
| 351 | |
| 352 | unsigned int get_mem_min_tck(void) |
| 353 | { |
| 354 | u32 reg32; |
| 355 | u8 rev; |
| 356 | const struct device *dev; |
| 357 | const struct northbridge_intel_sandybridge_config *cfg = NULL; |
| 358 | |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 359 | dev = pcidev_path_on_root(PCI_DEVFN(0, 0)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 360 | if (dev) |
| 361 | cfg = dev->chip_info; |
| 362 | |
| 363 | /* If this is zero, it just means devicetree.cb didn't set it */ |
| 364 | if (!cfg || cfg->max_mem_clock_mhz == 0) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 365 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 366 | if (CONFIG(NATIVE_RAMINIT_IGNORE_MAX_MEM_FUSES)) |
Patrick Rudolph | b794a69 | 2017-08-08 13:13:51 +0200 | [diff] [blame] | 367 | return TCK_1333MHZ; |
| 368 | |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 369 | rev = pci_read_config8(HOST_BRIDGE, PCI_DEVICE_ID); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 370 | |
| 371 | if ((rev & BASE_REV_MASK) == BASE_REV_SNB) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 372 | /* Read Capabilities A Register DMFC bits */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 373 | reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_A); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 374 | reg32 &= 0x7; |
| 375 | |
| 376 | switch (reg32) { |
| 377 | case 7: return TCK_533MHZ; |
| 378 | case 6: return TCK_666MHZ; |
| 379 | case 5: return TCK_800MHZ; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 380 | /* Reserved */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 381 | default: |
| 382 | break; |
| 383 | } |
| 384 | } else { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 385 | /* Read Capabilities B Register DMFC bits */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 386 | reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_B); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 387 | reg32 = (reg32 >> 4) & 0x7; |
| 388 | |
| 389 | switch (reg32) { |
| 390 | case 7: return TCK_533MHZ; |
| 391 | case 6: return TCK_666MHZ; |
| 392 | case 5: return TCK_800MHZ; |
| 393 | case 4: return TCK_933MHZ; |
| 394 | case 3: return TCK_1066MHZ; |
| 395 | case 2: return TCK_1200MHZ; |
| 396 | case 1: return TCK_1333MHZ; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 397 | /* Reserved */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 398 | default: |
| 399 | break; |
| 400 | } |
| 401 | } |
| 402 | return DEFAULT_TCK; |
| 403 | } else { |
| 404 | if (cfg->max_mem_clock_mhz >= 1066) |
| 405 | return TCK_1066MHZ; |
| 406 | else if (cfg->max_mem_clock_mhz >= 933) |
| 407 | return TCK_933MHZ; |
| 408 | else if (cfg->max_mem_clock_mhz >= 800) |
| 409 | return TCK_800MHZ; |
| 410 | else if (cfg->max_mem_clock_mhz >= 666) |
| 411 | return TCK_666MHZ; |
| 412 | else if (cfg->max_mem_clock_mhz >= 533) |
| 413 | return TCK_533MHZ; |
| 414 | else |
| 415 | return TCK_400MHZ; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | #define DEFAULT_PCI_MMIO_SIZE 2048 |
| 420 | |
| 421 | static unsigned int get_mmio_size(void) |
| 422 | { |
| 423 | const struct device *dev; |
| 424 | const struct northbridge_intel_sandybridge_config *cfg = NULL; |
| 425 | |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 426 | dev = pcidev_path_on_root(PCI_DEVFN(0, 0)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 427 | if (dev) |
| 428 | cfg = dev->chip_info; |
| 429 | |
| 430 | /* If this is zero, it just means devicetree.cb didn't set it */ |
| 431 | if (!cfg || cfg->pci_mmio_size == 0) |
| 432 | return DEFAULT_PCI_MMIO_SIZE; |
| 433 | else |
| 434 | return cfg->pci_mmio_size; |
| 435 | } |
| 436 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 437 | void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 438 | { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 439 | u32 reg, val, reclaim, tom, gfxstolen, gttsize; |
| 440 | size_t tsegbase, toludbase, remapbase, gfxstolenbase, mmiosize, gttbase; |
| 441 | size_t tsegsize, touudbase, remaplimit, mestolenbase, tsegbasedelta; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 442 | uint16_t ggc; |
| 443 | |
| 444 | mmiosize = get_mmio_size(); |
| 445 | |
Felix Held | 87ddea2 | 2020-01-26 04:55:27 +0100 | [diff] [blame] | 446 | ggc = pci_read_config16(HOST_BRIDGE, GGC); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 447 | if (!(ggc & 2)) { |
| 448 | gfxstolen = ((ggc >> 3) & 0x1f) * 32; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 449 | gttsize = ((ggc >> 8) & 0x3); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 450 | } else { |
| 451 | gfxstolen = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 452 | gttsize = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | tsegsize = CONFIG_SMM_TSEG_SIZE >> 20; |
| 456 | |
| 457 | tom = ctrl->channel_size_mb[0] + ctrl->channel_size_mb[1]; |
| 458 | |
| 459 | mestolenbase = tom - me_uma_size; |
| 460 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 461 | toludbase = MIN(4096 - mmiosize + gfxstolen + gttsize + tsegsize, tom - me_uma_size); |
| 462 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 463 | gfxstolenbase = toludbase - gfxstolen; |
| 464 | gttbase = gfxstolenbase - gttsize; |
| 465 | |
| 466 | tsegbase = gttbase - tsegsize; |
| 467 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 468 | /* Round tsegbase down to nearest address aligned to tsegsize */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 469 | tsegbasedelta = tsegbase & (tsegsize - 1); |
| 470 | tsegbase &= ~(tsegsize - 1); |
| 471 | |
| 472 | gttbase -= tsegbasedelta; |
| 473 | gfxstolenbase -= tsegbasedelta; |
| 474 | toludbase -= tsegbasedelta; |
| 475 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 476 | /* Test if it is possible to reclaim a hole in the RAM addressing */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 477 | if (tom - me_uma_size > toludbase) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 478 | /* Reclaim is possible */ |
| 479 | reclaim = 1; |
| 480 | remapbase = MAX(4096, tom - me_uma_size); |
| 481 | remaplimit = remapbase + MIN(4096, tom - me_uma_size) - toludbase - 1; |
| 482 | touudbase = remaplimit + 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 483 | } else { |
| 484 | // Reclaim not possible |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 485 | reclaim = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 486 | touudbase = tom - me_uma_size; |
| 487 | } |
| 488 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 489 | /* Update memory map in PCIe configuration space */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 490 | printk(BIOS_DEBUG, "Update PCI-E configuration space:\n"); |
| 491 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 492 | /* TOM (top of memory) */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 493 | reg = pci_read_config32(HOST_BRIDGE, TOM); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 494 | val = tom & 0xfff; |
| 495 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 496 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOM, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 497 | pci_write_config32(HOST_BRIDGE, TOM, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 498 | |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 499 | reg = pci_read_config32(HOST_BRIDGE, TOM + 4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 500 | val = tom & 0xfffff000; |
| 501 | reg = (reg & ~0x000fffff) | (val >> 12); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 502 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOM + 4, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 503 | pci_write_config32(HOST_BRIDGE, TOM + 4, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 504 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 505 | /* TOLUD (Top Of Low Usable DRAM) */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 506 | reg = pci_read_config32(HOST_BRIDGE, TOLUD); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 507 | val = toludbase & 0xfff; |
| 508 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 509 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOLUD, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 510 | pci_write_config32(HOST_BRIDGE, TOLUD, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 511 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 512 | /* TOUUD LSB (Top Of Upper Usable DRAM) */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 513 | reg = pci_read_config32(HOST_BRIDGE, TOUUD); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 514 | val = touudbase & 0xfff; |
| 515 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 516 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOUUD, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 517 | pci_write_config32(HOST_BRIDGE, TOUUD, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 518 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 519 | /* TOUUD MSB */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 520 | reg = pci_read_config32(HOST_BRIDGE, TOUUD + 4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 521 | val = touudbase & 0xfffff000; |
| 522 | reg = (reg & ~0x000fffff) | (val >> 12); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 523 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOUUD + 4, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 524 | pci_write_config32(HOST_BRIDGE, TOUUD + 4, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 525 | |
| 526 | if (reclaim) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 527 | /* REMAP BASE */ |
| 528 | pci_write_config32(HOST_BRIDGE, REMAPBASE, remapbase << 20); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 529 | pci_write_config32(HOST_BRIDGE, REMAPBASE + 4, remapbase >> 12); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 530 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 531 | /* REMAP LIMIT */ |
| 532 | pci_write_config32(HOST_BRIDGE, REMAPLIMIT, remaplimit << 20); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 533 | pci_write_config32(HOST_BRIDGE, REMAPLIMIT + 4, remaplimit >> 12); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 534 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 535 | /* TSEG */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 536 | reg = pci_read_config32(HOST_BRIDGE, TSEGMB); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 537 | val = tsegbase & 0xfff; |
| 538 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 539 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TSEGMB, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 540 | pci_write_config32(HOST_BRIDGE, TSEGMB, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 541 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 542 | /* GFX stolen memory */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 543 | reg = pci_read_config32(HOST_BRIDGE, BDSM); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 544 | val = gfxstolenbase & 0xfff; |
| 545 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 546 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", BDSM, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 547 | pci_write_config32(HOST_BRIDGE, BDSM, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 548 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 549 | /* GTT stolen memory */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 550 | reg = pci_read_config32(HOST_BRIDGE, BGSM); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 551 | val = gttbase & 0xfff; |
| 552 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 4902fee | 2019-12-28 18:09:47 +0100 | [diff] [blame] | 553 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", BGSM, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 554 | pci_write_config32(HOST_BRIDGE, BGSM, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 555 | |
| 556 | if (me_uma_size) { |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 557 | reg = pci_read_config32(HOST_BRIDGE, MESEG_MASK + 4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 558 | val = (0x80000 - me_uma_size) & 0xfffff000; |
| 559 | reg = (reg & ~0x000fffff) | (val >> 12); |
Felix Held | 651f99f | 2019-12-30 16:28:48 +0100 | [diff] [blame] | 560 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK + 4, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 561 | pci_write_config32(HOST_BRIDGE, MESEG_MASK + 4, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 562 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 563 | /* ME base */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 564 | reg = pci_read_config32(HOST_BRIDGE, MESEG_BASE); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 565 | val = mestolenbase & 0xfff; |
| 566 | reg = (reg & ~0xfff00000) | (val << 20); |
Felix Held | 651f99f | 2019-12-30 16:28:48 +0100 | [diff] [blame] | 567 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_BASE, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 568 | pci_write_config32(HOST_BRIDGE, MESEG_BASE, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 569 | |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 570 | reg = pci_read_config32(HOST_BRIDGE, MESEG_BASE + 4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 571 | val = mestolenbase & 0xfffff000; |
| 572 | reg = (reg & ~0x000fffff) | (val >> 12); |
Felix Held | 651f99f | 2019-12-30 16:28:48 +0100 | [diff] [blame] | 573 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_BASE + 4, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 574 | pci_write_config32(HOST_BRIDGE, MESEG_BASE + 4, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 575 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 576 | /* ME mask */ |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 577 | reg = pci_read_config32(HOST_BRIDGE, MESEG_MASK); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 578 | val = (0x80000 - me_uma_size) & 0xfff; |
| 579 | reg = (reg & ~0xfff00000) | (val << 20); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 580 | reg = reg | ME_STLEN_EN; /* Set ME memory enable */ |
| 581 | reg = reg | MELCK; /* Set lock bit on ME mem */ |
Felix Held | 651f99f | 2019-12-30 16:28:48 +0100 | [diff] [blame] | 582 | printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK, reg); |
Angel Pons | b31d1d7 | 2020-01-10 01:35:09 +0100 | [diff] [blame] | 583 | pci_write_config32(HOST_BRIDGE, MESEG_MASK, reg); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 584 | } |
| 585 | } |
| 586 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 587 | static void wait_for_iosav(int channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 588 | { |
| 589 | while (1) { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 590 | if (MCHBAR32(IOSAV_STATUS_ch(channel)) & 0x50) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 591 | return; |
| 592 | } |
| 593 | } |
| 594 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 595 | static void write_reset(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 596 | { |
| 597 | int channel, slotrank; |
| 598 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 599 | /* Choose a populated channel */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 600 | channel = (ctrl->rankmap[0]) ? 0 : 1; |
| 601 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 602 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 603 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 604 | /* Choose a populated rank */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 605 | slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2; |
| 606 | |
| 607 | /* DRAM command ZQCS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 608 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 609 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x80c01; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 610 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 611 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 612 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 613 | /* |
| 614 | * Execute command queue - why is bit 22 set here?! |
| 615 | * |
| 616 | * This is actually using the IOSAV state machine as a timer, so refresh is allowed. |
| 617 | */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 618 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = (1 << 22) | IOSAV_RUN_ONCE(1); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 619 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 620 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 621 | } |
| 622 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 623 | void dram_jedecreset(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 624 | { |
Felix Held | 9fe248f | 2018-07-31 20:59:45 +0200 | [diff] [blame] | 625 | u32 reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 626 | int channel; |
| 627 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 628 | while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) |
| 629 | ; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 630 | do { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 631 | reg = MCHBAR32(IOSAV_STATUS_ch(0)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 632 | } while ((reg & 0x14) == 0); |
| 633 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 634 | /* Set state of memory controller */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 635 | reg = 0x112; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 636 | MCHBAR32(MC_INIT_STATE_G) = reg; |
| 637 | MCHBAR32(MC_INIT_STATE) = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 638 | reg |= 2; /* DDR reset */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 639 | MCHBAR32(MC_INIT_STATE_G) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 640 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 641 | /* Assert DIMM reset signal */ |
| 642 | MCHBAR32_AND(MC_INIT_STATE_G, ~2); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 643 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 644 | /* Wait 200us */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 645 | udelay(200); |
| 646 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 647 | /* Deassert DIMM reset signal */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 648 | MCHBAR32_OR(MC_INIT_STATE_G, 2); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 649 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 650 | /* Wait 500us */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 651 | udelay(500); |
| 652 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 653 | /* Enable DCLK */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 654 | MCHBAR32_OR(MC_INIT_STATE_G, 4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 655 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 656 | /* XXX Wait 20ns */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 657 | udelay(1); |
| 658 | |
| 659 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 660 | /* Set valid rank CKE */ |
Felix Held | 9fe248f | 2018-07-31 20:59:45 +0200 | [diff] [blame] | 661 | reg = ctrl->rankmap[channel]; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 662 | MCHBAR32(MC_INIT_STATE_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 663 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 664 | /* Wait 10ns for ranks to settle */ |
| 665 | // udelay(0.01); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 666 | |
| 667 | reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 668 | MCHBAR32(MC_INIT_STATE_ch(channel)) = reg; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 669 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 670 | /* Write reset using a NOP */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 671 | write_reset(ctrl); |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | static odtmap get_ODT(ramctr_timing *ctrl, u8 rank, int channel) |
| 676 | { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 677 | /* Get ODT based on rankmap */ |
| 678 | int dimms_per_ch = (ctrl->rankmap[channel] & 1) + ((ctrl->rankmap[channel] >> 2) & 1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 679 | |
| 680 | if (dimms_per_ch == 1) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 681 | return (const odtmap){60, 60}; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 682 | } else { |
| 683 | return (const odtmap){120, 30}; |
| 684 | } |
| 685 | } |
| 686 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 687 | static void write_mrreg(ramctr_timing *ctrl, int channel, int slotrank, int reg, u32 val) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 688 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 689 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 690 | |
| 691 | if (ctrl->rank_mirror[channel][slotrank]) { |
| 692 | /* DDR3 Rank1 Address mirror |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 693 | swap the following pins: |
| 694 | A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 695 | reg = ((reg >> 1) & 1) | ((reg << 1) & 2); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 696 | val = (val & ~0x1f8) | ((val >> 1) & 0xa8) | ((val & 0xa8) << 1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 697 | } |
| 698 | |
| 699 | /* DRAM command MRS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 700 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f000; |
| 701 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 702 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 703 | (slotrank << 24) | (reg << 20) | val | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 704 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 705 | |
| 706 | /* DRAM command MRS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 707 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f000; |
| 708 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x41001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 709 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 710 | (slotrank << 24) | (reg << 20) | val | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 711 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 712 | |
| 713 | /* DRAM command MRS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 714 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0f000; |
| 715 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 716 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 717 | (slotrank << 24) | (reg << 20) | val | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 718 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 719 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 720 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 721 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 722 | } |
| 723 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 724 | static u32 make_mr0(ramctr_timing *ctrl, u8 rank) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 725 | { |
| 726 | u16 mr0reg, mch_cas, mch_wr; |
| 727 | static const u8 mch_wr_t[12] = { 1, 2, 3, 4, 0, 5, 0, 6, 0, 7, 0, 0 }; |
Patrick Rudolph | 74203de | 2017-11-20 11:57:01 +0100 | [diff] [blame] | 728 | const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 729 | |
| 730 | /* DLL Reset - self clearing - set after CLK frequency has been changed */ |
| 731 | mr0reg = 0x100; |
| 732 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 733 | /* Convert CAS to MCH register friendly */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 734 | if (ctrl->CAS < 12) { |
| 735 | mch_cas = (u16) ((ctrl->CAS - 4) << 1); |
| 736 | } else { |
| 737 | mch_cas = (u16) (ctrl->CAS - 12); |
| 738 | mch_cas = ((mch_cas << 1) | 0x1); |
| 739 | } |
| 740 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 741 | /* Convert tWR to MCH register friendly */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 742 | mch_wr = mch_wr_t[ctrl->tWR - 5]; |
| 743 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 744 | mr0reg = (mr0reg & ~0x0004) | ((mch_cas & 0x1) << 2); |
| 745 | mr0reg = (mr0reg & ~0x0070) | ((mch_cas & 0xe) << 3); |
| 746 | mr0reg = (mr0reg & ~0x0e00) | (mch_wr << 9); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 747 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 748 | /* Precharge PD - Fast (desktop) 1 or slow (mobile) 0 - mostly power-saving feature */ |
| 749 | mr0reg = (mr0reg & ~(1 << 12)) | (!is_mobile << 12); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 750 | return mr0reg; |
| 751 | } |
| 752 | |
| 753 | static void dram_mr0(ramctr_timing *ctrl, u8 rank, int channel) |
| 754 | { |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 755 | write_mrreg(ctrl, channel, rank, 0, make_mr0(ctrl, rank)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | static u32 encode_odt(u32 odt) |
| 759 | { |
| 760 | switch (odt) { |
| 761 | case 30: |
| 762 | return (1 << 9) | (1 << 2); // RZQ/8, RZQ/4 |
| 763 | case 60: |
| 764 | return (1 << 2); // RZQ/4 |
| 765 | case 120: |
| 766 | return (1 << 6); // RZQ/2 |
| 767 | default: |
| 768 | case 0: |
| 769 | return 0; |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | static u32 make_mr1(ramctr_timing *ctrl, u8 rank, int channel) |
| 774 | { |
| 775 | odtmap odt; |
| 776 | u32 mr1reg; |
| 777 | |
| 778 | odt = get_ODT(ctrl, rank, channel); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 779 | mr1reg = 2; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 780 | |
| 781 | mr1reg |= encode_odt(odt.rttnom); |
| 782 | |
| 783 | return mr1reg; |
| 784 | } |
| 785 | |
| 786 | static void dram_mr1(ramctr_timing *ctrl, u8 rank, int channel) |
| 787 | { |
| 788 | u16 mr1reg; |
| 789 | |
| 790 | mr1reg = make_mr1(ctrl, rank, channel); |
| 791 | |
| 792 | write_mrreg(ctrl, channel, rank, 1, mr1reg); |
| 793 | } |
| 794 | |
| 795 | static void dram_mr2(ramctr_timing *ctrl, u8 rank, int channel) |
| 796 | { |
| 797 | u16 pasr, cwl, mr2reg; |
| 798 | odtmap odt; |
| 799 | int srt; |
| 800 | |
| 801 | pasr = 0; |
| 802 | cwl = ctrl->CWL - 5; |
| 803 | odt = get_ODT(ctrl, rank, channel); |
| 804 | |
| 805 | srt = ctrl->extended_temperature_range && !ctrl->auto_self_refresh; |
| 806 | |
| 807 | mr2reg = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 808 | mr2reg = (mr2reg & ~0x07) | pasr; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 809 | mr2reg = (mr2reg & ~0x38) | (cwl << 3); |
| 810 | mr2reg = (mr2reg & ~0x40) | (ctrl->auto_self_refresh << 6); |
| 811 | mr2reg = (mr2reg & ~0x80) | (srt << 7); |
| 812 | mr2reg |= (odt.rttwr / 60) << 9; |
| 813 | |
| 814 | write_mrreg(ctrl, channel, rank, 2, mr2reg); |
| 815 | } |
| 816 | |
| 817 | static void dram_mr3(ramctr_timing *ctrl, u8 rank, int channel) |
| 818 | { |
| 819 | write_mrreg(ctrl, channel, rank, 3, 0); |
| 820 | } |
| 821 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 822 | void dram_mrscommands(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 823 | { |
| 824 | u8 slotrank; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 825 | int channel; |
| 826 | |
| 827 | FOR_ALL_POPULATED_CHANNELS { |
| 828 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 829 | /* MR2 */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 830 | dram_mr2(ctrl, slotrank, channel); |
| 831 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 832 | /* MR3 */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 833 | dram_mr3(ctrl, slotrank, channel); |
| 834 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 835 | /* MR1 */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 836 | dram_mr1(ctrl, slotrank, channel); |
| 837 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 838 | /* MR0 */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 839 | dram_mr0(ctrl, slotrank, channel); |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 844 | MCHBAR32(IOSAV_n_SP_CMD_CTRL(0)) = 0x7; |
| 845 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL(0)) = 0xf1001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 846 | MCHBAR32(IOSAV_n_SP_CMD_ADDR(0)) = 0x60002; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 847 | MCHBAR32(IOSAV_n_ADDR_UPDATE(0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 848 | |
| 849 | /* DRAM command ZQCL */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 850 | MCHBAR32(IOSAV_n_SP_CMD_CTRL(1)) = 0x1f003; |
| 851 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL(1)) = 0x1901001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 852 | MCHBAR32(IOSAV_n_SP_CMD_ADDR(1)) = 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 853 | MCHBAR32(IOSAV_n_ADDR_UPDATE(1)) = 0x288; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 854 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 855 | /* Execute command queue on all channels. Do it four times. */ |
| 856 | MCHBAR32(IOSAV_SEQ_CTL) = (1 << 18) | 4; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 857 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 858 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 859 | /* Wait for ref drained */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 860 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 861 | } |
| 862 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 863 | /* Refresh enable */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 864 | MCHBAR32_OR(MC_INIT_STATE_G, 8); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 865 | |
| 866 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 867 | MCHBAR32_AND(SCHED_CBIT_ch(channel), ~0x200000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 868 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 869 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 870 | |
| 871 | slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2; |
| 872 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 873 | /* Drain */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 874 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 875 | |
| 876 | /* DRAM command ZQCS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 877 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 878 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001; |
| 879 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
| 880 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 881 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 882 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 883 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 884 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 885 | /* Drain */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 886 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 887 | } |
| 888 | } |
| 889 | |
Felix Held | 3b90603 | 2020-01-14 17:05:43 +0100 | [diff] [blame] | 890 | static const u32 lane_base[] = { |
| 891 | LANEBASE_B0, LANEBASE_B1, LANEBASE_B2, LANEBASE_B3, |
| 892 | LANEBASE_B4, LANEBASE_B5, LANEBASE_B6, LANEBASE_B7, |
| 893 | LANEBASE_ECC |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 894 | }; |
| 895 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 896 | void program_timings(ramctr_timing *ctrl, int channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 897 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 898 | u32 reg32, reg_roundtrip_latency, reg_pi_code, reg_logic_delay, reg_io_latency; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 899 | int lane; |
| 900 | int slotrank, slot; |
| 901 | int full_shift = 0; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 902 | u16 pi_coding_ctrl[NUM_SLOTS]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 903 | |
| 904 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 905 | if (full_shift < -ctrl->timings[channel][slotrank].pi_coding) |
| 906 | full_shift = -ctrl->timings[channel][slotrank].pi_coding; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 907 | } |
| 908 | |
| 909 | for (slot = 0; slot < NUM_SLOTS; slot++) |
| 910 | switch ((ctrl->rankmap[channel] >> (2 * slot)) & 3) { |
| 911 | case 0: |
| 912 | default: |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 913 | pi_coding_ctrl[slot] = 0x7f; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 914 | break; |
| 915 | case 1: |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 916 | pi_coding_ctrl[slot] = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 917 | ctrl->timings[channel][2 * slot + 0].pi_coding + full_shift; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 918 | break; |
| 919 | case 2: |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 920 | pi_coding_ctrl[slot] = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 921 | ctrl->timings[channel][2 * slot + 1].pi_coding + full_shift; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 922 | break; |
| 923 | case 3: |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 924 | pi_coding_ctrl[slot] = |
| 925 | (ctrl->timings[channel][2 * slot].pi_coding + |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 926 | ctrl->timings[channel][2 * slot + 1].pi_coding) / 2 + full_shift; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 927 | break; |
| 928 | } |
| 929 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 930 | /* Enable CMD XOVER */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 931 | reg32 = get_XOVER_CMD(ctrl->rankmap[channel]); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 932 | reg32 |= (pi_coding_ctrl[0] & 0x3f) << 6; |
| 933 | reg32 |= (pi_coding_ctrl[0] & 0x40) << 9; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 934 | reg32 |= (pi_coding_ctrl[1] & 0x7f) << 18; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 935 | reg32 |= (full_shift & 0x3f) | ((full_shift & 0x40) << 6); |
| 936 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 937 | MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg32; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 938 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 939 | /* Enable CLK XOVER */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 940 | reg_pi_code = get_XOVER_CLK(ctrl->rankmap[channel]); |
| 941 | reg_logic_delay = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 942 | |
| 943 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 944 | int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 945 | int offset_pi_code; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 946 | if (shift < 0) |
| 947 | shift = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 948 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 949 | offset_pi_code = ctrl->pi_code_offset + shift; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 950 | |
| 951 | /* Set CLK phase shift */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 952 | reg_pi_code |= (offset_pi_code & 0x3f) << (6 * slotrank); |
| 953 | reg_logic_delay |= ((offset_pi_code >> 6) & 1) << slotrank; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 954 | } |
| 955 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 956 | MCHBAR32(GDCRCKPICODE_ch(channel)) = reg_pi_code; |
| 957 | MCHBAR32(GDCRCKLOGICDELAY_ch(channel)) = reg_logic_delay; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 958 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 959 | reg_io_latency = MCHBAR32(SC_IO_LATENCY_ch(channel)); |
Felix Held | dee167e | 2019-12-30 17:30:16 +0100 | [diff] [blame] | 960 | reg_io_latency &= 0xffff0000; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 961 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 962 | reg_roundtrip_latency = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 963 | |
| 964 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 965 | int post_timA_min_high = 7, pre_timA_min_high = 7; |
| 966 | int post_timA_max_high = 0, pre_timA_max_high = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 967 | int shift_402x = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 968 | int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 969 | |
| 970 | if (shift < 0) |
| 971 | shift = 0; |
| 972 | |
| 973 | FOR_ALL_LANES { |
Arthur Heymans | abc504f | 2017-05-15 09:36:44 +0200 | [diff] [blame] | 974 | post_timA_min_high = MIN(post_timA_min_high, |
| 975 | (ctrl->timings[channel][slotrank].lanes[lane]. |
| 976 | timA + shift) >> 6); |
| 977 | pre_timA_min_high = MIN(pre_timA_min_high, |
| 978 | ctrl->timings[channel][slotrank].lanes[lane]. |
| 979 | timA >> 6); |
| 980 | post_timA_max_high = MAX(post_timA_max_high, |
| 981 | (ctrl->timings[channel][slotrank].lanes[lane]. |
| 982 | timA + shift) >> 6); |
| 983 | pre_timA_max_high = MAX(pre_timA_max_high, |
| 984 | ctrl->timings[channel][slotrank].lanes[lane]. |
| 985 | timA >> 6); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 986 | } |
| 987 | |
| 988 | if (pre_timA_max_high - pre_timA_min_high < |
| 989 | post_timA_max_high - post_timA_min_high) |
| 990 | shift_402x = +1; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 991 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 992 | else if (pre_timA_max_high - pre_timA_min_high > |
| 993 | post_timA_max_high - post_timA_min_high) |
| 994 | shift_402x = -1; |
| 995 | |
Felix Held | dee167e | 2019-12-30 17:30:16 +0100 | [diff] [blame] | 996 | reg_io_latency |= |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 997 | (ctrl->timings[channel][slotrank].io_latency + shift_402x - |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 998 | post_timA_min_high) << (4 * slotrank); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 999 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1000 | reg_roundtrip_latency |= |
| 1001 | (ctrl->timings[channel][slotrank].roundtrip_latency + |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1002 | shift_402x) << (8 * slotrank); |
| 1003 | |
| 1004 | FOR_ALL_LANES { |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 1005 | MCHBAR32(lane_base[lane] + GDCRRX(channel, slotrank)) = |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1006 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1007 | timA + shift) & 0x3f) |
| 1008 | | |
| 1009 | ((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1010 | rising + shift) << 8) |
| 1011 | | |
| 1012 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1013 | timA + shift - |
| 1014 | (post_timA_min_high << 6)) & 0x1c0) << 10) |
| 1015 | | ((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1016 | falling + shift) << 20)); |
| 1017 | |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 1018 | MCHBAR32(lane_base[lane] + GDCRTX(channel, slotrank)) = |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1019 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1020 | timC + shift) & 0x3f) |
| 1021 | | |
| 1022 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1023 | timB + shift) & 0x3f) << 8) |
| 1024 | | |
| 1025 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1026 | timB + shift) & 0x1c0) << 9) |
| 1027 | | |
| 1028 | (((ctrl->timings[channel][slotrank].lanes[lane]. |
| 1029 | timC + shift) & 0x40) << 13)); |
| 1030 | } |
| 1031 | } |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1032 | MCHBAR32(SC_ROUNDT_LAT_ch(channel)) = reg_roundtrip_latency; |
| 1033 | MCHBAR32(SC_IO_LATENCY_ch(channel)) = reg_io_latency; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1034 | } |
| 1035 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1036 | static void test_timA(ramctr_timing *ctrl, int channel, int slotrank) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1037 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1038 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1039 | |
| 1040 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1041 | write MR3 MPR enable |
| 1042 | in this mode only RD and RDA are allowed |
| 1043 | all reads return a predefined pattern */ |
| 1044 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 1045 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = (0xc01 | (ctrl->tMOD << 16)); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1046 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1047 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1048 | |
| 1049 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1050 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 1051 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4040c01; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1052 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1053 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1054 | |
| 1055 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1056 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 1057 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x100f | ((ctrl->CAS + 36) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1058 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1059 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1060 | |
| 1061 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1062 | write MR3 MPR disable */ |
| 1063 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 1064 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1065 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1066 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1067 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1068 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1069 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1070 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1071 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1072 | } |
| 1073 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1074 | static int does_lane_work(ramctr_timing *ctrl, int channel, int slotrank, int lane) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1075 | { |
| 1076 | u32 timA = ctrl->timings[channel][slotrank].lanes[lane].timA; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1077 | |
| 1078 | return (MCHBAR32(lane_base[lane] + |
| 1079 | GDCRTRAININGRESULT(channel, (timA / 32) & 1)) >> (timA % 32)) & 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1080 | } |
| 1081 | |
| 1082 | struct run { |
| 1083 | int middle; |
| 1084 | int end; |
| 1085 | int start; |
| 1086 | int all; |
| 1087 | int length; |
| 1088 | }; |
| 1089 | |
| 1090 | static struct run get_longest_zero_run(int *seq, int sz) |
| 1091 | { |
| 1092 | int i, ls; |
| 1093 | int bl = 0, bs = 0; |
| 1094 | struct run ret; |
| 1095 | |
| 1096 | ls = 0; |
| 1097 | for (i = 0; i < 2 * sz; i++) |
| 1098 | if (seq[i % sz]) { |
| 1099 | if (i - ls > bl) { |
| 1100 | bl = i - ls; |
| 1101 | bs = ls; |
| 1102 | } |
| 1103 | ls = i + 1; |
| 1104 | } |
| 1105 | if (bl == 0) { |
| 1106 | ret.middle = sz / 2; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1107 | ret.start = 0; |
| 1108 | ret.end = sz; |
Jacob Garber | e0c181d | 2019-04-08 22:21:43 -0600 | [diff] [blame] | 1109 | ret.length = sz; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1110 | ret.all = 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1111 | return ret; |
| 1112 | } |
| 1113 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1114 | ret.start = bs % sz; |
| 1115 | ret.end = (bs + bl - 1) % sz; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1116 | ret.middle = (bs + (bl - 1) / 2) % sz; |
| 1117 | ret.length = bl; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1118 | ret.all = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1119 | |
| 1120 | return ret; |
| 1121 | } |
| 1122 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1123 | static void discover_timA_coarse(ramctr_timing *ctrl, int channel, int slotrank, int *upperA) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1124 | { |
| 1125 | int timA; |
| 1126 | int statistics[NUM_LANES][128]; |
| 1127 | int lane; |
| 1128 | |
| 1129 | for (timA = 0; timA < 128; timA++) { |
| 1130 | FOR_ALL_LANES { |
| 1131 | ctrl->timings[channel][slotrank].lanes[lane].timA = timA; |
| 1132 | } |
| 1133 | program_timings(ctrl, channel); |
| 1134 | |
| 1135 | test_timA(ctrl, channel, slotrank); |
| 1136 | |
| 1137 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1138 | statistics[lane][timA] = !does_lane_work(ctrl, channel, slotrank, lane); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1139 | } |
| 1140 | } |
| 1141 | FOR_ALL_LANES { |
| 1142 | struct run rn = get_longest_zero_run(statistics[lane], 128); |
| 1143 | ctrl->timings[channel][slotrank].lanes[lane].timA = rn.middle; |
| 1144 | upperA[lane] = rn.end; |
| 1145 | if (upperA[lane] < rn.middle) |
| 1146 | upperA[lane] += 128; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1147 | |
Patrick Rudolph | 368b615 | 2016-11-25 16:36:52 +0100 | [diff] [blame] | 1148 | printram("timA: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n", |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1149 | channel, slotrank, lane, rn.start, rn.middle, rn.end); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1150 | } |
| 1151 | } |
| 1152 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1153 | static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, int *upperA) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1154 | { |
| 1155 | int timA_delta; |
| 1156 | int statistics[NUM_LANES][51]; |
| 1157 | int lane, i; |
| 1158 | |
| 1159 | memset(statistics, 0, sizeof(statistics)); |
| 1160 | |
| 1161 | for (timA_delta = -25; timA_delta <= 25; timA_delta++) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1162 | |
| 1163 | FOR_ALL_LANES { |
| 1164 | ctrl->timings[channel][slotrank].lanes[lane].timA |
| 1165 | = upperA[lane] + timA_delta + 0x40; |
| 1166 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1167 | program_timings(ctrl, channel); |
| 1168 | |
| 1169 | for (i = 0; i < 100; i++) { |
| 1170 | test_timA(ctrl, channel, slotrank); |
| 1171 | FOR_ALL_LANES { |
| 1172 | statistics[lane][timA_delta + 25] += |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1173 | does_lane_work(ctrl, channel, slotrank, lane); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1174 | } |
| 1175 | } |
| 1176 | } |
| 1177 | FOR_ALL_LANES { |
| 1178 | int last_zero, first_all; |
| 1179 | |
| 1180 | for (last_zero = -25; last_zero <= 25; last_zero++) |
| 1181 | if (statistics[lane][last_zero + 25]) |
| 1182 | break; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1183 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1184 | last_zero--; |
| 1185 | for (first_all = -25; first_all <= 25; first_all++) |
| 1186 | if (statistics[lane][first_all + 25] == 100) |
| 1187 | break; |
| 1188 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1189 | printram("lane %d: %d, %d\n", lane, last_zero, first_all); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1190 | |
| 1191 | ctrl->timings[channel][slotrank].lanes[lane].timA = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1192 | (last_zero + first_all) / 2 + upperA[lane]; |
| 1193 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1194 | printram("Aval: %d, %d, %d: %x\n", channel, slotrank, |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1195 | lane, ctrl->timings[channel][slotrank].lanes[lane].timA); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1196 | } |
| 1197 | } |
| 1198 | |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1199 | static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *upperA) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1200 | { |
| 1201 | int works[NUM_LANES]; |
| 1202 | int lane; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1203 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1204 | while (1) { |
| 1205 | int all_works = 1, some_works = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1206 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1207 | program_timings(ctrl, channel); |
| 1208 | test_timA(ctrl, channel, slotrank); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1209 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1210 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1211 | works[lane] = !does_lane_work(ctrl, channel, slotrank, lane); |
| 1212 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1213 | if (works[lane]) |
| 1214 | some_works = 1; |
| 1215 | else |
| 1216 | all_works = 0; |
| 1217 | } |
| 1218 | if (all_works) |
| 1219 | return 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1220 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1221 | if (!some_works) { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1222 | if (ctrl->timings[channel][slotrank].roundtrip_latency < 2) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1223 | printk(BIOS_EMERG, "402x discovery failed (1): %d, %d\n", |
| 1224 | channel, slotrank); |
| 1225 | return MAKE_ERR; |
| 1226 | } |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1227 | ctrl->timings[channel][slotrank].roundtrip_latency -= 2; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1228 | printram("4024 -= 2;\n"); |
| 1229 | continue; |
| 1230 | } |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1231 | ctrl->timings[channel][slotrank].io_latency += 2; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1232 | printram("4028 += 2;\n"); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1233 | |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1234 | if (ctrl->timings[channel][slotrank].io_latency >= 0x10) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1235 | printk(BIOS_EMERG, "402x discovery failed (2): %d, %d\n", |
| 1236 | channel, slotrank); |
| 1237 | return MAKE_ERR; |
| 1238 | } |
| 1239 | FOR_ALL_LANES if (works[lane]) { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1240 | ctrl->timings[channel][slotrank].lanes[lane].timA += 128; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1241 | upperA[lane] += 128; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1242 | printram("increment %d, %d, %d\n", channel, slotrank, lane); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1243 | } |
| 1244 | } |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
| 1248 | struct timA_minmax { |
| 1249 | int timA_min_high, timA_max_high; |
| 1250 | }; |
| 1251 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1252 | static void pre_timA_change(ramctr_timing *ctrl, int channel, int slotrank, |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1253 | struct timA_minmax *mnmx) |
| 1254 | { |
| 1255 | int lane; |
| 1256 | mnmx->timA_min_high = 7; |
| 1257 | mnmx->timA_max_high = 0; |
| 1258 | |
| 1259 | FOR_ALL_LANES { |
| 1260 | if (mnmx->timA_min_high > |
| 1261 | (ctrl->timings[channel][slotrank].lanes[lane].timA >> 6)) |
| 1262 | mnmx->timA_min_high = |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1263 | (ctrl->timings[channel][slotrank].lanes[lane].timA >> 6); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1264 | if (mnmx->timA_max_high < |
| 1265 | (ctrl->timings[channel][slotrank].lanes[lane].timA >> 6)) |
| 1266 | mnmx->timA_max_high = |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1267 | (ctrl->timings[channel][slotrank].lanes[lane].timA >> 6); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1268 | } |
| 1269 | } |
| 1270 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1271 | static void post_timA_change(ramctr_timing *ctrl, int channel, int slotrank, |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1272 | struct timA_minmax *mnmx) |
| 1273 | { |
| 1274 | struct timA_minmax post; |
| 1275 | int shift_402x = 0; |
| 1276 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1277 | /* Get changed maxima */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1278 | pre_timA_change(ctrl, channel, slotrank, &post); |
| 1279 | |
| 1280 | if (mnmx->timA_max_high - mnmx->timA_min_high < |
| 1281 | post.timA_max_high - post.timA_min_high) |
| 1282 | shift_402x = +1; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1283 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1284 | else if (mnmx->timA_max_high - mnmx->timA_min_high > |
| 1285 | post.timA_max_high - post.timA_min_high) |
| 1286 | shift_402x = -1; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1287 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1288 | else |
| 1289 | shift_402x = 0; |
| 1290 | |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1291 | ctrl->timings[channel][slotrank].io_latency += shift_402x; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1292 | ctrl->timings[channel][slotrank].roundtrip_latency += shift_402x; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1293 | printram("4024 += %d;\n", shift_402x); |
| 1294 | printram("4028 += %d;\n", shift_402x); |
| 1295 | } |
| 1296 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1297 | /* |
| 1298 | * Compensate the skew between DQS and DQs. |
| 1299 | * |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1300 | * To ease PCB design, a small skew between Data Strobe signals and Data Signals is allowed. |
| 1301 | * The controller has to measure and compensate this skew for every byte-lane. By delaying |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1302 | * either all DQ signals or DQS signal, a full phase shift can be introduced. It is assumed |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1303 | * that one byte-lane's DQs signals have the same routing delay. |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1304 | * |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1305 | * To measure the actual skew, the DRAM is placed in "read leveling" mode. In read leveling |
| 1306 | * mode the DRAM-chip outputs an alternating periodic pattern. The memory controller iterates |
| 1307 | * over all possible values to do a full phase shift and issues read commands. With DQS and |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1308 | * DQ in phase the data being read is expected to alternate on every byte: |
| 1309 | * |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1310 | * 0xFF 0x00 0xFF ... |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1311 | * |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1312 | * Once the controller has detected this pattern a bit in the result register is set for the |
| 1313 | * current phase shift. |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1314 | */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1315 | int read_training(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1316 | { |
| 1317 | int channel, slotrank, lane; |
| 1318 | int err; |
| 1319 | |
| 1320 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 1321 | int all_high, some_high; |
| 1322 | int upperA[NUM_LANES]; |
| 1323 | struct timA_minmax mnmx; |
| 1324 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1325 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1326 | |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1327 | /* DRAM command PREA */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1328 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; |
| 1329 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1330 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1331 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1332 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1333 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1334 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1335 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1336 | MCHBAR32(GDCRTRAININGMOD) = (slotrank << 2) | 0x8001; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1337 | |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1338 | ctrl->timings[channel][slotrank].io_latency = 4; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1339 | ctrl->timings[channel][slotrank].roundtrip_latency = 55; |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1340 | program_timings(ctrl, channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1341 | |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1342 | discover_timA_coarse(ctrl, channel, slotrank, upperA); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1343 | |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1344 | all_high = 1; |
| 1345 | some_high = 0; |
| 1346 | FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1347 | if (ctrl->timings[channel][slotrank].lanes[lane].timA >= 0x40) |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1348 | some_high = 1; |
| 1349 | else |
| 1350 | all_high = 0; |
| 1351 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1352 | |
| 1353 | if (all_high) { |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1354 | ctrl->timings[channel][slotrank].io_latency--; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1355 | printram("4028--;\n"); |
| 1356 | FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1357 | ctrl->timings[channel][slotrank].lanes[lane].timA -= 0x40; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1358 | upperA[lane] -= 0x40; |
| 1359 | |
| 1360 | } |
| 1361 | } else if (some_high) { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1362 | ctrl->timings[channel][slotrank].roundtrip_latency++; |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1363 | ctrl->timings[channel][slotrank].io_latency++; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1364 | printram("4024++;\n"); |
| 1365 | printram("4028++;\n"); |
| 1366 | } |
| 1367 | |
| 1368 | program_timings(ctrl, channel); |
| 1369 | |
| 1370 | pre_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1371 | |
| 1372 | err = discover_402x(ctrl, channel, slotrank, upperA); |
| 1373 | if (err) |
| 1374 | return err; |
| 1375 | |
| 1376 | post_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1377 | pre_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1378 | |
| 1379 | discover_timA_fine(ctrl, channel, slotrank, upperA); |
| 1380 | |
| 1381 | post_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1382 | pre_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1383 | |
| 1384 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1385 | ctrl->timings[channel][slotrank].lanes[lane].timA -= |
| 1386 | mnmx.timA_min_high * 0x40; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1387 | } |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1388 | ctrl->timings[channel][slotrank].io_latency -= mnmx.timA_min_high; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1389 | printram("4028 -= %d;\n", mnmx.timA_min_high); |
| 1390 | |
| 1391 | post_timA_change(ctrl, channel, slotrank, &mnmx); |
| 1392 | |
| 1393 | printram("4/8: %d, %d, %x, %x\n", channel, slotrank, |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1394 | ctrl->timings[channel][slotrank].roundtrip_latency, |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1395 | ctrl->timings[channel][slotrank].io_latency); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1396 | |
| 1397 | printram("final results:\n"); |
| 1398 | FOR_ALL_LANES |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1399 | printram("Aval: %d, %d, %d: %x\n", channel, slotrank, lane, |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1400 | ctrl->timings[channel][slotrank].lanes[lane].timA); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1401 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1402 | MCHBAR32(GDCRTRAININGMOD) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1403 | |
| 1404 | toggle_io_reset(); |
| 1405 | } |
| 1406 | |
| 1407 | FOR_ALL_POPULATED_CHANNELS { |
| 1408 | program_timings(ctrl, channel); |
| 1409 | } |
| 1410 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1411 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1412 | } |
| 1413 | return 0; |
| 1414 | } |
| 1415 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1416 | static void test_timC(ramctr_timing *ctrl, int channel, int slotrank) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1417 | { |
| 1418 | int lane; |
| 1419 | |
| 1420 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1421 | MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)) = 0; |
| 1422 | MCHBAR32(IOSAV_By_BW_SERROR_C_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1423 | } |
| 1424 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1425 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1426 | |
| 1427 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1428 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; |
| 1429 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
| 1430 | (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | 4 | (ctrl->tRCD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1431 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | (6 << 16); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1432 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1433 | |
| 1434 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1435 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207; |
| 1436 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8041001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1437 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1438 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1439 | |
| 1440 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1441 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201; |
| 1442 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x80411f4; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1443 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1444 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1445 | |
| 1446 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1447 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207; |
| 1448 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
| 1449 | 0x08000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1450 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1451 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1452 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1453 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1454 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1455 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1456 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1457 | |
| 1458 | /* DRAM command PREA */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1459 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; |
| 1460 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1461 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1462 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1463 | |
| 1464 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1465 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006; |
| 1466 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = |
| 1467 | (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10) | 8 | (ctrl->CAS << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1468 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1469 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x244; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1470 | |
| 1471 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1472 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 1473 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 1474 | 0x40011f4 | (MAX(ctrl->tRTP, 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1475 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1476 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1477 | |
| 1478 | /* DRAM command PREA */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1479 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; |
| 1480 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1481 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1482 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1483 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1484 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1485 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1486 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1487 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1488 | } |
| 1489 | |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1490 | static void timC_threshold_process(int *data, const int count) |
| 1491 | { |
| 1492 | int min = data[0]; |
| 1493 | int max = min; |
| 1494 | int i; |
| 1495 | for (i = 1; i < count; i++) { |
| 1496 | if (min > data[i]) |
| 1497 | min = data[i]; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1498 | |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1499 | if (max < data[i]) |
| 1500 | max = data[i]; |
| 1501 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1502 | int threshold = min / 2 + max / 2; |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1503 | for (i = 0; i < count; i++) |
| 1504 | data[i] = data[i] > threshold; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1505 | |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1506 | printram("threshold=%d min=%d max=%d\n", threshold, min, max); |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1507 | } |
| 1508 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1509 | static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank) |
| 1510 | { |
| 1511 | int timC; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1512 | int stats[NUM_LANES][MAX_TIMC + 1]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1513 | int lane; |
| 1514 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1515 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1516 | |
| 1517 | /* DRAM command PREA */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1518 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; |
| 1519 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1520 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1521 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1522 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1523 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1524 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1525 | |
| 1526 | for (timC = 0; timC <= MAX_TIMC; timC++) { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1527 | FOR_ALL_LANES ctrl->timings[channel][slotrank].lanes[lane].timC = timC; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1528 | program_timings(ctrl, channel); |
| 1529 | |
| 1530 | test_timC(ctrl, channel, slotrank); |
| 1531 | |
| 1532 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1533 | stats[lane][timC] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1534 | } |
| 1535 | } |
| 1536 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1537 | struct run rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane])); |
| 1538 | |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1539 | if (rn.all || rn.length < 8) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1540 | printk(BIOS_EMERG, "timC discovery failed: %d, %d, %d\n", |
| 1541 | channel, slotrank, lane); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1542 | /* |
| 1543 | * With command training not being done yet, the lane can be erroneous. |
| 1544 | * Take the average as reference and try again to find a run. |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1545 | */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1546 | timC_threshold_process(stats[lane], ARRAY_SIZE(stats[lane])); |
| 1547 | rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane])); |
| 1548 | |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1549 | if (rn.all || rn.length < 8) { |
| 1550 | printk(BIOS_EMERG, "timC recovery failed\n"); |
| 1551 | return MAKE_ERR; |
| 1552 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1553 | } |
Tobias Diedrich | 87c4f11 | 2017-12-07 22:40:20 +0100 | [diff] [blame] | 1554 | ctrl->timings[channel][slotrank].lanes[lane].timC = rn.middle; |
Patrick Rudolph | 368b615 | 2016-11-25 16:36:52 +0100 | [diff] [blame] | 1555 | printram("timC: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n", |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1556 | channel, slotrank, lane, rn.start, rn.middle, rn.end); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1557 | } |
| 1558 | return 0; |
| 1559 | } |
| 1560 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1561 | static int get_precedening_channels(ramctr_timing *ctrl, int target_channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1562 | { |
| 1563 | int channel, ret = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1564 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1565 | FOR_ALL_POPULATED_CHANNELS if (channel < target_channel) |
| 1566 | ret++; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1567 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1568 | return ret; |
| 1569 | } |
| 1570 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1571 | static void fill_pattern0(ramctr_timing *ctrl, int channel, u32 a, u32 b) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1572 | { |
Subrata Banik | b1434fc | 2019-03-15 22:20:41 +0530 | [diff] [blame] | 1573 | unsigned int j; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1574 | unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1575 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1576 | for (j = 0; j < 16; j++) |
| 1577 | write32((void *)(0x04000000 + channel_offset + 4 * j), j & 2 ? b : a); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1578 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1579 | sfence(); |
| 1580 | } |
| 1581 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1582 | static int num_of_channels(const ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1583 | { |
| 1584 | int ret = 0; |
| 1585 | int channel; |
| 1586 | FOR_ALL_POPULATED_CHANNELS ret++; |
| 1587 | return ret; |
| 1588 | } |
| 1589 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1590 | static void fill_pattern1(ramctr_timing *ctrl, int channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1591 | { |
Subrata Banik | b1434fc | 2019-03-15 22:20:41 +0530 | [diff] [blame] | 1592 | unsigned int j; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1593 | unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40; |
Subrata Banik | b1434fc | 2019-03-15 22:20:41 +0530 | [diff] [blame] | 1594 | unsigned int channel_step = 0x40 * num_of_channels(ctrl); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1595 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1596 | for (j = 0; j < 16; j++) |
| 1597 | write32((void *)(0x04000000 + channel_offset + j * 4), 0xffffffff); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1598 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1599 | for (j = 0; j < 16; j++) |
| 1600 | write32((void *)(0x04000000 + channel_offset + channel_step + j * 4), 0); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1601 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1602 | sfence(); |
| 1603 | } |
| 1604 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1605 | static void precharge(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1606 | { |
| 1607 | int channel, slotrank, lane; |
| 1608 | |
| 1609 | FOR_ALL_POPULATED_CHANNELS { |
| 1610 | FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1611 | ctrl->timings[channel][slotrank].lanes[lane].falling = 16; |
| 1612 | ctrl->timings[channel][slotrank].lanes[lane].rising = 16; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1613 | } |
| 1614 | |
| 1615 | program_timings(ctrl, channel); |
| 1616 | |
| 1617 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1618 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1619 | |
| 1620 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1621 | write MR3 MPR enable |
| 1622 | in this mode only RD and RDA are allowed |
| 1623 | all reads return a predefined pattern */ |
| 1624 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 1625 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1626 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1627 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1628 | (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1629 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1630 | |
| 1631 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1632 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 1633 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 1634 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1635 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1636 | |
| 1637 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1638 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 1639 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1640 | 0x1001 | ((ctrl->CAS + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1641 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1642 | (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1643 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1644 | |
| 1645 | /* DRAM command MRS |
| 1646 | * write MR3 MPR disable */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1647 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 1648 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1649 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1650 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1651 | (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1652 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1653 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1654 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1655 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1656 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1657 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1658 | } |
| 1659 | |
| 1660 | FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1661 | ctrl->timings[channel][slotrank].lanes[lane].falling = 48; |
| 1662 | ctrl->timings[channel][slotrank].lanes[lane].rising = 48; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1663 | } |
| 1664 | |
| 1665 | program_timings(ctrl, channel); |
| 1666 | |
| 1667 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1668 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1669 | /* DRAM command MRS |
| 1670 | * write MR3 MPR enable |
| 1671 | * in this mode only RD and RDA are allowed |
| 1672 | * all reads return a predefined pattern */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1673 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 1674 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1675 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1676 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1677 | (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1678 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1679 | |
| 1680 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1681 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 1682 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 1683 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1684 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1685 | |
| 1686 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1687 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 1688 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1689 | 0x1001 | ((ctrl->CAS + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1690 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1691 | (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1692 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1693 | |
| 1694 | /* DRAM command MRS |
| 1695 | * write MR3 MPR disable */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1696 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 1697 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1698 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1699 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1700 | (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1701 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1702 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1703 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1704 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1705 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1706 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1707 | } |
| 1708 | } |
| 1709 | } |
| 1710 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1711 | static void test_timB(ramctr_timing *ctrl, int channel, int slotrank) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1712 | { |
| 1713 | /* enable DQs on this slotrank */ |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1714 | write_mrreg(ctrl, channel, slotrank, 1, 0x80 | make_mr1(ctrl, slotrank, channel)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1715 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1716 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1717 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1718 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f207; |
| 1719 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1720 | 0x8000c01 | ((ctrl->CWL + ctrl->tWLO) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1721 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 8 | (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1722 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1723 | |
| 1724 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1725 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f107; |
| 1726 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4000c01 | ((ctrl->CAS + 38) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1727 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 4; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1728 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1729 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1730 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1731 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(2); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1732 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1733 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1734 | |
| 1735 | /* disable DQs on this slotrank */ |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1736 | write_mrreg(ctrl, channel, slotrank, 1, 0x1080 | make_mr1(ctrl, slotrank, channel)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1737 | } |
| 1738 | |
| 1739 | static int discover_timB(ramctr_timing *ctrl, int channel, int slotrank) |
| 1740 | { |
| 1741 | int timB; |
| 1742 | int statistics[NUM_LANES][128]; |
| 1743 | int lane; |
| 1744 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1745 | MCHBAR32(GDCRTRAININGMOD) = 0x108052 | (slotrank << 2); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1746 | |
| 1747 | for (timB = 0; timB < 128; timB++) { |
| 1748 | FOR_ALL_LANES { |
| 1749 | ctrl->timings[channel][slotrank].lanes[lane].timB = timB; |
| 1750 | } |
| 1751 | program_timings(ctrl, channel); |
| 1752 | |
| 1753 | test_timB(ctrl, channel, slotrank); |
| 1754 | |
| 1755 | FOR_ALL_LANES { |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 1756 | statistics[lane][timB] = !((MCHBAR32(lane_base[lane] + |
| 1757 | GDCRTRAININGRESULT(channel, (timB / 32) & 1)) >> |
| 1758 | (timB % 32)) & 1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1759 | } |
| 1760 | } |
| 1761 | FOR_ALL_LANES { |
| 1762 | struct run rn = get_longest_zero_run(statistics[lane], 128); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1763 | /* |
| 1764 | * timC is a direct function of timB's 6 LSBs. Some tests increments the value |
| 1765 | * of timB by a small value, which might cause the 6-bit value to overflow if |
| 1766 | * it's close to 0x3f. Increment the value by a small offset if it's likely |
| 1767 | * to overflow, to make sure it won't overflow while running tests and bricks |
| 1768 | * the system due to a non matching timC. |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1769 | * |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1770 | * TODO: find out why some tests (edge write discovery) increment timB. |
| 1771 | */ |
| 1772 | if ((rn.start & 0x3f) == 0x3e) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1773 | rn.start += 2; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1774 | else if ((rn.start & 0x3f) == 0x3f) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1775 | rn.start += 1; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1776 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1777 | ctrl->timings[channel][slotrank].lanes[lane].timB = rn.start; |
| 1778 | if (rn.all) { |
| 1779 | printk(BIOS_EMERG, "timB discovery failed: %d, %d, %d\n", |
| 1780 | channel, slotrank, lane); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1781 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1782 | return MAKE_ERR; |
| 1783 | } |
Patrick Rudolph | 368b615 | 2016-11-25 16:36:52 +0100 | [diff] [blame] | 1784 | printram("timB: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n", |
| 1785 | channel, slotrank, lane, rn.start, rn.middle, rn.end); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1786 | } |
| 1787 | return 0; |
| 1788 | } |
| 1789 | |
| 1790 | static int get_timB_high_adjust(u64 val) |
| 1791 | { |
| 1792 | int i; |
| 1793 | |
| 1794 | /* good */ |
| 1795 | if (val == 0xffffffffffffffffLL) |
| 1796 | return 0; |
| 1797 | |
| 1798 | if (val >= 0xf000000000000000LL) { |
| 1799 | /* needs negative adjustment */ |
| 1800 | for (i = 0; i < 8; i++) |
| 1801 | if (val << (8 * (7 - i) + 4)) |
| 1802 | return -i; |
| 1803 | } else { |
| 1804 | /* needs positive adjustment */ |
| 1805 | for (i = 0; i < 8; i++) |
| 1806 | if (val >> (8 * (7 - i) + 4)) |
| 1807 | return i; |
| 1808 | } |
| 1809 | return 8; |
| 1810 | } |
| 1811 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1812 | static void adjust_high_timB(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1813 | { |
| 1814 | int channel, slotrank, lane, old; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1815 | MCHBAR32(GDCRTRAININGMOD) = 0x200; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1816 | FOR_ALL_POPULATED_CHANNELS { |
| 1817 | fill_pattern1(ctrl, channel); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1818 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1819 | } |
| 1820 | FOR_ALL_POPULATED_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 1821 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1822 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x10001; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1823 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1824 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1825 | |
| 1826 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1827 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; |
| 1828 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRCD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1829 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1830 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1831 | |
| 1832 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1833 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207; |
| 1834 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8040c01; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1835 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1836 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1837 | |
| 1838 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1839 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201; |
| 1840 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x8041003; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1841 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1842 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x3e2; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1843 | |
| 1844 | /* DRAM command NOP */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1845 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207; |
| 1846 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1847 | 0x8000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1848 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x8; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1849 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1850 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1851 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1852 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1853 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1854 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1855 | |
| 1856 | /* DRAM command PREA */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1857 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; |
| 1858 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | ((ctrl->tRP) << 16); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1859 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1860 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1861 | |
| 1862 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1863 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006; |
| 1864 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0xc01 | ((ctrl->tRCD) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1865 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1866 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1867 | |
| 1868 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1869 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x3f105; |
| 1870 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x4000c01 | ((ctrl->tRP + |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1871 | ctrl->timings[channel][slotrank].roundtrip_latency + |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 1872 | ctrl->timings[channel][slotrank].io_latency) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1873 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60008; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1874 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1875 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1876 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1877 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1878 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1879 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1880 | FOR_ALL_LANES { |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 1881 | u64 res = MCHBAR32(lane_base[lane] + GDCRTRAININGRESULT1(channel)); |
Felix Held | 283b4466 | 2020-01-14 21:14:42 +0100 | [diff] [blame] | 1882 | res |= ((u64) MCHBAR32(lane_base[lane] + |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 1883 | GDCRTRAININGRESULT2(channel))) << 32; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1884 | old = ctrl->timings[channel][slotrank].lanes[lane].timB; |
| 1885 | ctrl->timings[channel][slotrank].lanes[lane].timB += |
| 1886 | get_timB_high_adjust(res) * 64; |
| 1887 | |
| 1888 | printram("High adjust %d:%016llx\n", lane, res); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 1889 | printram("Bval+: %d, %d, %d, %x -> %x\n", channel, slotrank, lane, |
| 1890 | old, ctrl->timings[channel][slotrank].lanes[lane].timB); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1891 | } |
| 1892 | } |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1893 | MCHBAR32(GDCRTRAININGMOD) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1894 | } |
| 1895 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1896 | static void write_op(ramctr_timing *ctrl, int channel) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1897 | { |
| 1898 | int slotrank; |
| 1899 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1900 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1901 | |
| 1902 | /* choose an existing rank. */ |
| 1903 | slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; |
| 1904 | |
| 1905 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1906 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 1907 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1908 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1909 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1910 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1911 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1912 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1913 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1914 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1915 | } |
| 1916 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1917 | /* |
| 1918 | * Compensate the skew between CMD/ADDR/CLK and DQ/DQS lanes. |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1919 | * |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1920 | * Since DDR3 uses a fly-by topology, the data and strobes signals reach the chips at different |
| 1921 | * times with respect to command, address and clock signals. By delaying either all DQ/DQS or |
| 1922 | * all CMD/ADDR/CLK signals, a full phase shift can be introduced. It is assumed that the |
| 1923 | * CLK/ADDR/CMD signals have the same routing delay. |
| 1924 | * |
| 1925 | * To find the required phase shift the DRAM is placed in "write leveling" mode. In this mode, |
| 1926 | * the DRAM-chip samples the CLK on every DQS edge and feeds back the sampled value on the data |
| 1927 | * lanes (DQ). |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1928 | */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1929 | int write_training(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1930 | { |
| 1931 | int channel, slotrank, lane; |
| 1932 | int err; |
| 1933 | |
| 1934 | FOR_ALL_POPULATED_CHANNELS |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1935 | MCHBAR32_OR(TC_RWP_ch(channel), 0x8000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1936 | |
| 1937 | FOR_ALL_POPULATED_CHANNELS { |
| 1938 | write_op(ctrl, channel); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1939 | MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1940 | } |
| 1941 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1942 | /* Refresh disable */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1943 | MCHBAR32_AND(MC_INIT_STATE_G, ~8); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1944 | FOR_ALL_POPULATED_CHANNELS { |
| 1945 | write_op(ctrl, channel); |
| 1946 | } |
| 1947 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1948 | /* Enable write leveling on all ranks |
| 1949 | Disable all DQ outputs |
| 1950 | Only NOP is allowed in this mode */ |
| 1951 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS |
| 1952 | write_mrreg(ctrl, channel, slotrank, 1, |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 1953 | make_mr1(ctrl, slotrank, channel) | 0x1080); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1954 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1955 | MCHBAR32(GDCRTRAININGMOD) = 0x108052; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1956 | |
| 1957 | toggle_io_reset(); |
| 1958 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1959 | /* Set any valid value for timB, it gets corrected later */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1960 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 1961 | err = discover_timB(ctrl, channel, slotrank); |
| 1962 | if (err) |
| 1963 | return err; |
| 1964 | } |
| 1965 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1966 | /* Disable write leveling on all ranks */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1967 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1968 | write_mrreg(ctrl, channel, slotrank, 1, make_mr1(ctrl, slotrank, channel)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1969 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1970 | MCHBAR32(GDCRTRAININGMOD) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1971 | |
| 1972 | FOR_ALL_POPULATED_CHANNELS |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1973 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1974 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1975 | /* Refresh enable */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1976 | MCHBAR32_OR(MC_INIT_STATE_G, 8); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1977 | |
| 1978 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1979 | MCHBAR32_AND(SCHED_CBIT_ch(channel), ~0x00200000); |
| 1980 | MCHBAR32(IOSAV_STATUS_ch(channel)); |
| 1981 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1982 | |
| 1983 | /* DRAM command ZQCS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1984 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 1985 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1986 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1987 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1988 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 1989 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1990 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 1991 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 1992 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 1993 | } |
| 1994 | |
| 1995 | toggle_io_reset(); |
| 1996 | |
| 1997 | printram("CPE\n"); |
| 1998 | precharge(ctrl); |
| 1999 | printram("CPF\n"); |
| 2000 | |
| 2001 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2002 | MCHBAR32_AND(IOSAV_By_BW_MASK_ch(channel, lane), 0); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2003 | } |
| 2004 | |
| 2005 | FOR_ALL_POPULATED_CHANNELS { |
| 2006 | fill_pattern0(ctrl, channel, 0xaaaaaaaa, 0x55555555); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2007 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2008 | } |
| 2009 | |
| 2010 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2011 | err = discover_timC(ctrl, channel, slotrank); |
| 2012 | if (err) |
| 2013 | return err; |
| 2014 | } |
| 2015 | |
| 2016 | FOR_ALL_POPULATED_CHANNELS |
| 2017 | program_timings(ctrl, channel); |
| 2018 | |
| 2019 | /* measure and adjust timB timings */ |
| 2020 | adjust_high_timB(ctrl); |
| 2021 | |
| 2022 | FOR_ALL_POPULATED_CHANNELS |
| 2023 | program_timings(ctrl, channel); |
| 2024 | |
| 2025 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2026 | MCHBAR32_AND(IOSAV_By_BW_MASK_ch(channel, lane), 0); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2027 | } |
| 2028 | return 0; |
| 2029 | } |
| 2030 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2031 | static int test_320c(ramctr_timing *ctrl, int channel, int slotrank) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2032 | { |
| 2033 | struct ram_rank_timings saved_rt = ctrl->timings[channel][slotrank]; |
| 2034 | int timC_delta; |
| 2035 | int lanes_ok = 0; |
| 2036 | int ctr = 0; |
| 2037 | int lane; |
| 2038 | |
| 2039 | for (timC_delta = -5; timC_delta <= 5; timC_delta++) { |
| 2040 | FOR_ALL_LANES { |
| 2041 | ctrl->timings[channel][slotrank].lanes[lane].timC = |
| 2042 | saved_rt.lanes[lane].timC + timC_delta; |
| 2043 | } |
| 2044 | program_timings(ctrl, channel); |
| 2045 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2046 | MCHBAR32(IOSAV_By_ERROR_COUNT(lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2047 | } |
| 2048 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2049 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2050 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2051 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2052 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2053 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; |
| 2054 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2055 | ((MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1)) << 10) |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2056 | | 8 | (ctrl->tRCD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2057 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2058 | (slotrank << 24) | ctr | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2059 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244; |
Felix Held | 9fe248f | 2018-07-31 20:59:45 +0200 | [diff] [blame] | 2060 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2061 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2062 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; |
| 2063 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2064 | 0x8001020 | ((ctrl->CWL + ctrl->tWTR + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2065 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24); |
| 2066 | MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 1)) = 0x389abcd; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2067 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x20e42; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2068 | |
| 2069 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2070 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2071 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2072 | 0x4001020 | (MAX(ctrl->tRTP, 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2073 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); |
| 2074 | MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 2)) = 0x389abcd; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2075 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x20e42; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2076 | |
| 2077 | /* DRAM command PRE */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2078 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; |
| 2079 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xf1001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2080 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2081 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2082 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2083 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2084 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2085 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2086 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2087 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2088 | u32 r32 = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2089 | |
| 2090 | if (r32 == 0) |
| 2091 | lanes_ok |= 1 << lane; |
| 2092 | } |
| 2093 | ctr++; |
| 2094 | if (lanes_ok == ((1 << NUM_LANES) - 1)) |
| 2095 | break; |
| 2096 | } |
| 2097 | |
| 2098 | ctrl->timings[channel][slotrank] = saved_rt; |
| 2099 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2100 | return lanes_ok != ((1 << NUM_LANES) - 1); |
| 2101 | } |
| 2102 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2103 | static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2104 | { |
Subrata Banik | b1434fc | 2019-03-15 22:20:41 +0530 | [diff] [blame] | 2105 | unsigned int i, j; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2106 | unsigned int offset = get_precedening_channels(ctrl, channel) * 0x40; |
| 2107 | unsigned int step = 0x40 * num_of_channels(ctrl); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2108 | |
| 2109 | if (patno) { |
| 2110 | u8 base8 = 0x80 >> ((patno - 1) % 8); |
| 2111 | u32 base = base8 | (base8 << 8) | (base8 << 16) | (base8 << 24); |
| 2112 | for (i = 0; i < 32; i++) { |
| 2113 | for (j = 0; j < 16; j++) { |
| 2114 | u32 val = use_base[patno - 1][i] & (1 << (j / 2)) ? base : 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2115 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2116 | if (invert[patno - 1][i] & (1 << (j / 2))) |
| 2117 | val = ~val; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2118 | |
| 2119 | write32((void *)((1 << 26) + offset + i * step + j * 4), val); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2120 | } |
| 2121 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2122 | } else { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2123 | for (i = 0; i < ARRAY_SIZE(pattern); i++) { |
| 2124 | for (j = 0; j < 16; j++) { |
| 2125 | const u32 val = pattern[i][j]; |
| 2126 | write32((void *)((1 << 26) + offset + i * step + j * 4), val); |
| 2127 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2128 | } |
| 2129 | sfence(); |
| 2130 | } |
| 2131 | } |
| 2132 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2133 | static void reprogram_320c(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2134 | { |
| 2135 | int channel, slotrank; |
| 2136 | |
| 2137 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2138 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2139 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2140 | /* Choose an existing rank */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2141 | slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; |
| 2142 | |
| 2143 | /* DRAM command ZQCS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2144 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 2145 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2146 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2147 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2148 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2149 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2150 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2151 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2152 | wait_for_iosav(channel); |
| 2153 | MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2154 | } |
| 2155 | |
| 2156 | /* refresh disable */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2157 | MCHBAR32_AND(MC_INIT_STATE_G, ~8); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2158 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2159 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2160 | |
| 2161 | /* choose an existing rank. */ |
| 2162 | slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; |
| 2163 | |
| 2164 | /* DRAM command ZQCS */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2165 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; |
| 2166 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2167 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2168 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2169 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2170 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2171 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2172 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2173 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2174 | } |
| 2175 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2176 | /* JEDEC reset */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2177 | dram_jedecreset(ctrl); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2178 | |
| 2179 | /* MRS commands */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2180 | dram_mrscommands(ctrl); |
| 2181 | |
| 2182 | toggle_io_reset(); |
| 2183 | } |
| 2184 | |
| 2185 | #define MIN_C320C_LEN 13 |
| 2186 | |
| 2187 | static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch) |
| 2188 | { |
| 2189 | struct ram_rank_timings saved_timings[NUM_CHANNELS][NUM_SLOTRANKS]; |
| 2190 | int slotrank; |
| 2191 | int c320c; |
| 2192 | int stat[NUM_SLOTRANKS][256]; |
| 2193 | int delta = 0; |
| 2194 | |
| 2195 | printram("Trying cmd_stretch %d on channel %d\n", cmd_stretch, channel); |
| 2196 | |
| 2197 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2198 | saved_timings[channel][slotrank] = ctrl->timings[channel][slotrank]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2199 | } |
| 2200 | |
| 2201 | ctrl->cmd_stretch[channel] = cmd_stretch; |
| 2202 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2203 | MCHBAR32(TC_RAP_ch(channel)) = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2204 | (ctrl->tRRD << 0) |
| 2205 | | (ctrl->tRTP << 4) |
| 2206 | | (ctrl->tCKE << 8) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2207 | | (ctrl->tWTR << 12) |
| 2208 | | (ctrl->tFAW << 16) |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2209 | | (ctrl->tWR << 24) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2210 | | (ctrl->cmd_stretch[channel] << 30); |
| 2211 | |
| 2212 | if (ctrl->cmd_stretch[channel] == 2) |
| 2213 | delta = 2; |
| 2214 | else if (ctrl->cmd_stretch[channel] == 0) |
| 2215 | delta = 4; |
| 2216 | |
| 2217 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2218 | ctrl->timings[channel][slotrank].roundtrip_latency -= delta; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2219 | } |
| 2220 | |
| 2221 | for (c320c = -127; c320c <= 127; c320c++) { |
| 2222 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2223 | ctrl->timings[channel][slotrank].pi_coding = c320c; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2224 | } |
| 2225 | program_timings(ctrl, channel); |
| 2226 | reprogram_320c(ctrl); |
| 2227 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2228 | stat[slotrank][c320c + 127] = test_320c(ctrl, channel, slotrank); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2229 | } |
| 2230 | } |
| 2231 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2232 | struct run rn = get_longest_zero_run(stat[slotrank], 255); |
| 2233 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2234 | ctrl->timings[channel][slotrank].pi_coding = rn.middle - 127; |
Patrick Rudolph | 368b615 | 2016-11-25 16:36:52 +0100 | [diff] [blame] | 2235 | printram("cmd_stretch: %d, %d: 0x%02x-0x%02x-0x%02x\n", |
| 2236 | channel, slotrank, rn.start, rn.middle, rn.end); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2237 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2238 | if (rn.all || rn.length < MIN_C320C_LEN) { |
| 2239 | FOR_ALL_POPULATED_RANKS { |
| 2240 | ctrl->timings[channel][slotrank] = |
| 2241 | saved_timings[channel][slotrank]; |
| 2242 | } |
| 2243 | return MAKE_ERR; |
| 2244 | } |
| 2245 | } |
| 2246 | |
| 2247 | return 0; |
| 2248 | } |
| 2249 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2250 | /* |
| 2251 | * Adjust CMD phase shift and try multiple command rates. |
| 2252 | * A command rate of 2T doubles the time needed for address and command decode. |
| 2253 | */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2254 | int command_training(ramctr_timing *ctrl) |
| 2255 | { |
| 2256 | int channel; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2257 | |
| 2258 | FOR_ALL_POPULATED_CHANNELS { |
| 2259 | fill_pattern5(ctrl, channel, 0); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2260 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2261 | } |
| 2262 | |
| 2263 | FOR_ALL_POPULATED_CHANNELS { |
Patrick Rudolph | 58d16af | 2017-06-19 19:33:12 +0200 | [diff] [blame] | 2264 | int cmdrate, err; |
| 2265 | |
| 2266 | /* |
| 2267 | * Dual DIMM per channel: |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2268 | * Issue: |
| 2269 | * While c320c discovery seems to succeed raminit will fail in write training. |
| 2270 | * |
| 2271 | * Workaround: |
| 2272 | * Skip 1T in dual DIMM mode, that's only supported by a few DIMMs. |
| 2273 | * Only try 1T mode for XMP DIMMs that request it in dual DIMM mode. |
Patrick Rudolph | 58d16af | 2017-06-19 19:33:12 +0200 | [diff] [blame] | 2274 | * |
| 2275 | * Single DIMM per channel: |
| 2276 | * Try command rate 1T and 2T |
| 2277 | */ |
| 2278 | cmdrate = ((ctrl->rankmap[channel] & 0x5) == 0x5); |
Dan Elkouby | dabebc3 | 2018-04-13 18:47:10 +0300 | [diff] [blame] | 2279 | if (ctrl->tCMD) |
| 2280 | /* XMP gives the CMD rate in clock ticks, not ns */ |
| 2281 | cmdrate = MIN(DIV_ROUND_UP(ctrl->tCMD, 256) - 1, 1); |
Patrick Rudolph | 58d16af | 2017-06-19 19:33:12 +0200 | [diff] [blame] | 2282 | |
Elyes HAOUAS | adda3f81 | 2018-01-31 23:02:35 +0100 | [diff] [blame] | 2283 | for (; cmdrate < 2; cmdrate++) { |
Patrick Rudolph | 58d16af | 2017-06-19 19:33:12 +0200 | [diff] [blame] | 2284 | err = try_cmd_stretch(ctrl, channel, cmdrate << 1); |
| 2285 | |
| 2286 | if (!err) |
| 2287 | break; |
| 2288 | } |
| 2289 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2290 | if (err) { |
Patrick Rudolph | 58d16af | 2017-06-19 19:33:12 +0200 | [diff] [blame] | 2291 | printk(BIOS_EMERG, "c320c discovery failed\n"); |
| 2292 | return err; |
| 2293 | } |
| 2294 | |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2295 | printram("Using CMD rate %uT on channel %u\n", cmdrate + 1, channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2296 | } |
| 2297 | |
| 2298 | FOR_ALL_POPULATED_CHANNELS |
| 2299 | program_timings(ctrl, channel); |
| 2300 | |
| 2301 | reprogram_320c(ctrl); |
| 2302 | return 0; |
| 2303 | } |
| 2304 | |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2305 | static int discover_edges_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2306 | { |
| 2307 | int edge; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2308 | int stats[NUM_LANES][MAX_EDGE_TIMING + 1]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2309 | int lane; |
| 2310 | |
| 2311 | for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) { |
| 2312 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2313 | ctrl->timings[channel][slotrank].lanes[lane].rising = edge; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2314 | ctrl->timings[channel][slotrank].lanes[lane].falling = edge; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2315 | } |
| 2316 | program_timings(ctrl, channel); |
| 2317 | |
| 2318 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2319 | MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)) = 0; |
| 2320 | MCHBAR32(IOSAV_By_BW_SERROR_C_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2321 | } |
| 2322 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2323 | wait_for_iosav(channel); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2324 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2325 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2326 | write MR3 MPR enable |
| 2327 | in this mode only RD and RDA are allowed |
| 2328 | all reads return a predefined pattern */ |
| 2329 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 2330 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2331 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2332 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2333 | |
| 2334 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2335 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 2336 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x40411f4; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2337 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2338 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2339 | |
| 2340 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2341 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2342 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2343 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2344 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2345 | |
| 2346 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2347 | MR3 disable MPR */ |
| 2348 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 2349 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2350 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2351 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2352 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2353 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2354 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2355 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2356 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2357 | |
| 2358 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2359 | stats[lane][edge] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2360 | } |
| 2361 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2362 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2363 | FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2364 | struct run rn = get_longest_zero_run(stats[lane], MAX_EDGE_TIMING + 1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2365 | edges[lane] = rn.middle; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2366 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2367 | if (rn.all) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2368 | printk(BIOS_EMERG, "edge discovery failed: %d, %d, %d\n", channel, |
| 2369 | slotrank, lane); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2370 | return MAKE_ERR; |
| 2371 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2372 | printram("eval %d, %d, %d: %02x\n", channel, slotrank, lane, edges[lane]); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2373 | } |
| 2374 | return 0; |
| 2375 | } |
| 2376 | |
| 2377 | int discover_edges(ramctr_timing *ctrl) |
| 2378 | { |
| 2379 | int falling_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
| 2380 | int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
| 2381 | int channel, slotrank, lane; |
| 2382 | int err; |
| 2383 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2384 | MCHBAR32(GDCRTRAININGMOD) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2385 | |
| 2386 | toggle_io_reset(); |
| 2387 | |
| 2388 | FOR_ALL_POPULATED_CHANNELS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2389 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2390 | } |
| 2391 | |
| 2392 | FOR_ALL_POPULATED_CHANNELS { |
| 2393 | fill_pattern0(ctrl, channel, 0, 0); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2394 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2395 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2396 | MCHBAR32(IOSAV_By_BW_SERROR_C_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2397 | } |
| 2398 | |
| 2399 | FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2400 | ctrl->timings[channel][slotrank].lanes[lane].falling = 16; |
| 2401 | ctrl->timings[channel][slotrank].lanes[lane].rising = 16; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2402 | } |
| 2403 | |
| 2404 | program_timings(ctrl, channel); |
| 2405 | |
| 2406 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2407 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2408 | |
| 2409 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2410 | MR3 enable MPR |
| 2411 | write MR3 MPR enable |
| 2412 | in this mode only RD and RDA are allowed |
| 2413 | all reads return a predefined pattern */ |
| 2414 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 2415 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2416 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2417 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2418 | (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2419 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2420 | |
| 2421 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2422 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 2423 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 2424 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2425 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2426 | |
| 2427 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2428 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2429 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2430 | 0x1001 | ((ctrl->CAS + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2431 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2432 | (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2433 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2434 | |
| 2435 | /* DRAM command MRS |
| 2436 | * MR3 disable MPR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2437 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 2438 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2439 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2440 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2441 | (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2442 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2443 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2444 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2445 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2446 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2447 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | /* XXX: check any measured value ? */ |
| 2451 | |
| 2452 | FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2453 | ctrl->timings[channel][slotrank].lanes[lane].falling = 48; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2454 | ctrl->timings[channel][slotrank].lanes[lane].rising = 48; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2455 | } |
| 2456 | |
| 2457 | program_timings(ctrl, channel); |
| 2458 | |
| 2459 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2460 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2461 | |
| 2462 | /* DRAM command MRS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2463 | MR3 enable MPR |
| 2464 | write MR3 MPR enable |
| 2465 | in this mode only RD and RDA are allowed |
| 2466 | all reads return a predefined pattern */ |
| 2467 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; |
| 2468 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2469 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2470 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2471 | (slotrank << 24) | 0x360004; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2472 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2473 | |
| 2474 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2475 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; |
| 2476 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2477 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 2478 | (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2479 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2480 | |
| 2481 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2482 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2483 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2484 | 0x1001 | ((ctrl->CAS + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2485 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2486 | (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2487 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2488 | |
| 2489 | /* DRAM command MRS |
| 2490 | * MR3 disable MPR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2491 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; |
| 2492 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2493 | 0xc01 | (ctrl->tMOD << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2494 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2495 | (slotrank << 24) | 0x360000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2496 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2497 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2498 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2499 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2500 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2501 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2502 | } |
| 2503 | |
| 2504 | /* XXX: check any measured value ? */ |
| 2505 | |
| 2506 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2507 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2508 | ~MCHBAR32(IOSAV_By_BW_SERROR_ch(channel, lane)) & 0xff; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2509 | } |
| 2510 | |
| 2511 | fill_pattern0(ctrl, channel, 0, 0xffffffff); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2512 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2513 | } |
| 2514 | |
| 2515 | /* FIXME: under some conditions (older chipsets?) vendor BIOS sets both edges to the same value. */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2516 | MCHBAR32(IOSAV_DC_MASK) = 0x300; |
| 2517 | printram("discover falling edges:\n[%x] = %x\n", IOSAV_DC_MASK, 0x300); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2518 | |
| 2519 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2520 | err = discover_edges_real(ctrl, channel, slotrank, |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2521 | falling_edges[channel][slotrank]); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2522 | if (err) |
| 2523 | return err; |
| 2524 | } |
| 2525 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2526 | MCHBAR32(IOSAV_DC_MASK) = 0x200; |
| 2527 | printram("discover rising edges:\n[%x] = %x\n", IOSAV_DC_MASK, 0x200); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2528 | |
| 2529 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2530 | err = discover_edges_real(ctrl, channel, slotrank, |
| 2531 | rising_edges[channel][slotrank]); |
| 2532 | if (err) |
| 2533 | return err; |
| 2534 | } |
| 2535 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2536 | MCHBAR32(IOSAV_DC_MASK) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2537 | |
| 2538 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
| 2539 | ctrl->timings[channel][slotrank].lanes[lane].falling = |
| 2540 | falling_edges[channel][slotrank][lane]; |
| 2541 | ctrl->timings[channel][slotrank].lanes[lane].rising = |
| 2542 | rising_edges[channel][slotrank][lane]; |
| 2543 | } |
| 2544 | |
| 2545 | FOR_ALL_POPULATED_CHANNELS { |
| 2546 | program_timings(ctrl, channel); |
| 2547 | } |
| 2548 | |
| 2549 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2550 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2551 | } |
| 2552 | return 0; |
| 2553 | } |
| 2554 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2555 | static int discover_edges_write_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2556 | { |
| 2557 | int edge; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2558 | u32 raw_stats[MAX_EDGE_TIMING + 1]; |
| 2559 | int stats[MAX_EDGE_TIMING + 1]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2560 | const int reg3000b24[] = { 0, 0xc, 0x2c }; |
| 2561 | int lane, i; |
| 2562 | int lower[NUM_LANES]; |
| 2563 | int upper[NUM_LANES]; |
| 2564 | int pat; |
| 2565 | |
| 2566 | FOR_ALL_LANES { |
| 2567 | lower[lane] = 0; |
| 2568 | upper[lane] = MAX_EDGE_TIMING; |
| 2569 | } |
| 2570 | |
| 2571 | for (i = 0; i < 3; i++) { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2572 | MCHBAR32(GDCRTRAININGMOD_ch(channel)) = reg3000b24[i] << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2573 | printram("[%x] = 0x%08x\n", GDCRTRAININGMOD_ch(channel), reg3000b24[i] << 24); |
| 2574 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2575 | for (pat = 0; pat < NUM_PATTERNS; pat++) { |
| 2576 | fill_pattern5(ctrl, channel, pat); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2577 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2578 | printram("using pattern %d\n", pat); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2579 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2580 | for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) { |
| 2581 | FOR_ALL_LANES { |
| 2582 | ctrl->timings[channel][slotrank].lanes[lane]. |
| 2583 | rising = edge; |
| 2584 | ctrl->timings[channel][slotrank].lanes[lane]. |
| 2585 | falling = edge; |
| 2586 | } |
| 2587 | program_timings(ctrl, channel); |
| 2588 | |
| 2589 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2590 | MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)) = 0; |
| 2591 | MCHBAR32(IOSAV_By_BW_SERROR_C_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2592 | } |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2593 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2594 | |
| 2595 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2596 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; |
| 2597 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2598 | 0x4 | (ctrl->tRCD << 16) | |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2599 | (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2600 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2601 | (slotrank << 24) | 0x60000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2602 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2603 | |
| 2604 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2605 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; |
| 2606 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8005020 | |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2607 | ((ctrl->tWTR + ctrl->CWL + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2608 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2609 | slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2610 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2611 | |
| 2612 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2613 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2614 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2615 | 0x4005020 | (MAX(ctrl->tRTP, 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2616 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2617 | slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2618 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2619 | |
| 2620 | /* DRAM command PRE */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2621 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; |
| 2622 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2623 | 0xc01 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2624 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2625 | (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2626 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2627 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2628 | /* Execute command queue */ |
| 2629 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2630 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2631 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2632 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2633 | MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2634 | } |
| 2635 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2636 | /* FIXME: This register only exists on Ivy Bridge */ |
| 2637 | raw_stats[edge] = MCHBAR32(0x436c + channel * 0x400); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2638 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2639 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2640 | FOR_ALL_LANES { |
| 2641 | struct run rn; |
| 2642 | for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2643 | stats[edge] = !!(raw_stats[edge] & (1 << lane)); |
| 2644 | |
| 2645 | rn = get_longest_zero_run(stats, MAX_EDGE_TIMING + 1); |
| 2646 | |
| 2647 | printram("edges: %d, %d, %d: 0x%02x-0x%02x-0x%02x, " |
| 2648 | "0x%02x-0x%02x\n", channel, slotrank, i, rn.start, |
| 2649 | rn.middle, rn.end, rn.start + ctrl->edge_offset[i], |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2650 | rn.end - ctrl->edge_offset[i]); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2651 | |
| 2652 | lower[lane] = MAX(rn.start + ctrl->edge_offset[i], lower[lane]); |
| 2653 | upper[lane] = MIN(rn.end - ctrl->edge_offset[i], upper[lane]); |
| 2654 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2655 | edges[lane] = (lower[lane] + upper[lane]) / 2; |
| 2656 | if (rn.all || (lower[lane] > upper[lane])) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2657 | printk(BIOS_EMERG, "edge write discovery failed: " |
| 2658 | "%d, %d, %d\n", channel, slotrank, lane); |
| 2659 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2660 | return MAKE_ERR; |
| 2661 | } |
| 2662 | } |
| 2663 | } |
| 2664 | } |
| 2665 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2666 | MCHBAR32(GDCRTRAININGMOD_ch(0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2667 | printram("CPA\n"); |
| 2668 | return 0; |
| 2669 | } |
| 2670 | |
| 2671 | int discover_edges_write(ramctr_timing *ctrl) |
| 2672 | { |
| 2673 | int falling_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2674 | int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
| 2675 | int channel, slotrank, lane, err; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2676 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2677 | /* |
| 2678 | * FIXME: Under some conditions, vendor BIOS sets both edges to the same value. It will |
| 2679 | * also use a single loop. It would seem that it is a debugging configuration. |
| 2680 | */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2681 | MCHBAR32(IOSAV_DC_MASK) = 0x300; |
| 2682 | printram("discover falling edges write:\n[%x] = %x\n", IOSAV_DC_MASK, 0x300); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2683 | |
| 2684 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2685 | err = discover_edges_write_real(ctrl, channel, slotrank, |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2686 | falling_edges[channel][slotrank]); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2687 | if (err) |
| 2688 | return err; |
| 2689 | } |
| 2690 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2691 | MCHBAR32(IOSAV_DC_MASK) = 0x200; |
| 2692 | printram("discover rising edges write:\n[%x] = %x\n", IOSAV_DC_MASK, 0x200); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2693 | |
| 2694 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2695 | err = discover_edges_write_real(ctrl, channel, slotrank, |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2696 | rising_edges[channel][slotrank]); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2697 | if (err) |
| 2698 | return err; |
| 2699 | } |
| 2700 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2701 | MCHBAR32(IOSAV_DC_MASK) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2702 | |
| 2703 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
| 2704 | ctrl->timings[channel][slotrank].lanes[lane].falling = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2705 | falling_edges[channel][slotrank][lane]; |
| 2706 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2707 | ctrl->timings[channel][slotrank].lanes[lane].rising = |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2708 | rising_edges[channel][slotrank][lane]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2709 | } |
| 2710 | |
| 2711 | FOR_ALL_POPULATED_CHANNELS |
| 2712 | program_timings(ctrl, channel); |
| 2713 | |
| 2714 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2715 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2716 | } |
| 2717 | return 0; |
| 2718 | } |
| 2719 | |
| 2720 | static void test_timC_write(ramctr_timing *ctrl, int channel, int slotrank) |
| 2721 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2722 | wait_for_iosav(channel); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2723 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2724 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2725 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006; |
| 2726 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2727 | (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | (ctrl->tRCD << 16) | 4; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2728 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; |
| 2729 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x0244; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2730 | |
| 2731 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2732 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; |
| 2733 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2734 | 0x80011e0 | ((ctrl->tWTR + ctrl->CWL + 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2735 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2736 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2737 | |
| 2738 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2739 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; |
| 2740 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x40011e0 | (MAX(ctrl->tRTP, 8) << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2741 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2742 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2743 | |
| 2744 | /* DRAM command PRE */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2745 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; |
| 2746 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x1001 | (ctrl->tRP << 16); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2747 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2748 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2749 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2750 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2751 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2752 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2753 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2754 | } |
| 2755 | |
| 2756 | int discover_timC_write(ramctr_timing *ctrl) |
| 2757 | { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2758 | const u8 rege3c_b24[3] = { 0, 0x0f, 0x2f }; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2759 | int i, pat; |
| 2760 | |
| 2761 | int lower[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
| 2762 | int upper[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; |
| 2763 | int channel, slotrank, lane; |
| 2764 | |
| 2765 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
| 2766 | lower[channel][slotrank][lane] = 0; |
| 2767 | upper[channel][slotrank][lane] = MAX_TIMC; |
| 2768 | } |
| 2769 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2770 | /* |
| 2771 | * Enable IOSAV_n_SPECIAL_COMMAND_ADDR optimization. |
| 2772 | * FIXME: This must only be done on Ivy Bridge. |
| 2773 | */ |
| 2774 | MCHBAR32(MCMNTS_SPARE) = 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2775 | printram("discover timC write:\n"); |
| 2776 | |
| 2777 | for (i = 0; i < 3; i++) |
| 2778 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2779 | |
| 2780 | /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */ |
| 2781 | MCHBAR32_AND_OR(GDCRCMDDEBUGMUXCFG_Cz_S(channel), |
| 2782 | ~0x3f000000, rege3c_b24[i] << 24); |
| 2783 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2784 | udelay(2); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2785 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2786 | for (pat = 0; pat < NUM_PATTERNS; pat++) { |
| 2787 | FOR_ALL_POPULATED_RANKS { |
| 2788 | int timC; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2789 | u32 raw_stats[MAX_TIMC + 1]; |
| 2790 | int stats[MAX_TIMC + 1]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2791 | |
| 2792 | /* Make sure rn.start < rn.end */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2793 | stats[MAX_TIMC] = 1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2794 | |
| 2795 | fill_pattern5(ctrl, channel, pat); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2796 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; |
| 2797 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2798 | for (timC = 0; timC < MAX_TIMC; timC++) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2799 | FOR_ALL_LANES { |
| 2800 | ctrl->timings[channel][slotrank] |
| 2801 | .lanes[lane].timC = timC; |
| 2802 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2803 | program_timings(ctrl, channel); |
| 2804 | |
| 2805 | test_timC_write (ctrl, channel, slotrank); |
| 2806 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2807 | /* FIXME: Another IVB-only register! */ |
| 2808 | raw_stats[timC] = |
Angel Pons | 1aba2a3 | 2020-01-05 22:31:41 +0100 | [diff] [blame] | 2809 | MCHBAR32(0x436c + channel * 0x400); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2810 | } |
| 2811 | FOR_ALL_LANES { |
| 2812 | struct run rn; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2813 | for (timC = 0; timC < MAX_TIMC; timC++) { |
| 2814 | stats[timC] = !!(raw_stats[timC] |
| 2815 | & (1 << lane)); |
| 2816 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2817 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2818 | rn = get_longest_zero_run(stats, MAX_TIMC + 1); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2819 | if (rn.all) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2820 | printk(BIOS_EMERG, |
| 2821 | "timC write discovery failed: " |
| 2822 | "%d, %d, %d\n", channel, |
| 2823 | slotrank, lane); |
| 2824 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2825 | return MAKE_ERR; |
| 2826 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2827 | printram("timC: %d, %d, %d: " |
| 2828 | "0x%02x-0x%02x-0x%02x, " |
| 2829 | "0x%02x-0x%02x\n", channel, slotrank, |
| 2830 | i, rn.start, rn.middle, rn.end, |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2831 | rn.start + ctrl->timC_offset[i], |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2832 | rn.end - ctrl->timC_offset[i]); |
| 2833 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2834 | lower[channel][slotrank][lane] = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2835 | MAX(rn.start + ctrl->timC_offset[i], |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2836 | lower[channel][slotrank][lane]); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2837 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2838 | upper[channel][slotrank][lane] = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2839 | MIN(rn.end - ctrl->timC_offset[i], |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2840 | upper[channel][slotrank][lane]); |
| 2841 | |
| 2842 | } |
| 2843 | } |
| 2844 | } |
| 2845 | } |
| 2846 | |
| 2847 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2848 | /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2849 | MCHBAR32_AND(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2850 | udelay(2); |
| 2851 | } |
| 2852 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2853 | /* |
| 2854 | * Disable IOSAV_n_SPECIAL_COMMAND_ADDR optimization. |
| 2855 | * FIXME: This must only be done on Ivy Bridge. |
| 2856 | */ |
| 2857 | MCHBAR32(MCMNTS_SPARE) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2858 | |
| 2859 | printram("CPB\n"); |
| 2860 | |
| 2861 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2862 | printram("timC %d, %d, %d: %x\n", channel, slotrank, lane, |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2863 | (lower[channel][slotrank][lane] + |
| 2864 | upper[channel][slotrank][lane]) / 2); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2865 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2866 | ctrl->timings[channel][slotrank].lanes[lane].timC = |
| 2867 | (lower[channel][slotrank][lane] + |
| 2868 | upper[channel][slotrank][lane]) / 2; |
| 2869 | } |
| 2870 | FOR_ALL_POPULATED_CHANNELS { |
| 2871 | program_timings(ctrl, channel); |
| 2872 | } |
| 2873 | return 0; |
| 2874 | } |
| 2875 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2876 | void normalize_training(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2877 | { |
| 2878 | int channel, slotrank, lane; |
Patrick Rudolph | 3c8cb97 | 2016-11-25 16:00:01 +0100 | [diff] [blame] | 2879 | int mat; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2880 | |
| 2881 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
| 2882 | int delta; |
Patrick Rudolph | 3c8cb97 | 2016-11-25 16:00:01 +0100 | [diff] [blame] | 2883 | mat = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2884 | FOR_ALL_LANES mat = |
Elyes HAOUAS | f97c1c9 | 2019-12-03 18:22:06 +0100 | [diff] [blame] | 2885 | MAX(ctrl->timings[channel][slotrank].lanes[lane].timA, mat); |
Patrick Rudolph | 413edc8 | 2016-11-25 15:40:07 +0100 | [diff] [blame] | 2886 | printram("normalize %d, %d, %d: mat %d\n", |
| 2887 | channel, slotrank, lane, mat); |
| 2888 | |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 2889 | delta = (mat >> 6) - ctrl->timings[channel][slotrank].io_latency; |
Patrick Rudolph | 413edc8 | 2016-11-25 15:40:07 +0100 | [diff] [blame] | 2890 | printram("normalize %d, %d, %d: delta %d\n", |
| 2891 | channel, slotrank, lane, delta); |
| 2892 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2893 | ctrl->timings[channel][slotrank].roundtrip_latency += delta; |
Felix Held | ef4fe3e | 2019-12-31 14:15:05 +0100 | [diff] [blame] | 2894 | ctrl->timings[channel][slotrank].io_latency += delta; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2895 | } |
| 2896 | |
| 2897 | FOR_ALL_POPULATED_CHANNELS { |
| 2898 | program_timings(ctrl, channel); |
| 2899 | } |
| 2900 | } |
| 2901 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2902 | void write_controller_mr(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2903 | { |
| 2904 | int channel, slotrank; |
| 2905 | |
| 2906 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 2907 | MCHBAR32(lane_base[slotrank] + GDCRTRAININGRESULT1(channel)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2908 | make_mr0(ctrl, slotrank); |
Felix Held | fb19c8a | 2020-01-14 21:27:59 +0100 | [diff] [blame] | 2909 | MCHBAR32(lane_base[slotrank] + GDCRTRAININGRESULT2(channel)) = |
Felix Held | 2bb3cdf | 2018-07-28 00:23:59 +0200 | [diff] [blame] | 2910 | make_mr1(ctrl, slotrank, channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2911 | } |
| 2912 | } |
| 2913 | |
| 2914 | int channel_test(ramctr_timing *ctrl) |
| 2915 | { |
| 2916 | int channel, slotrank, lane; |
| 2917 | |
| 2918 | slotrank = 0; |
| 2919 | FOR_ALL_POPULATED_CHANNELS |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2920 | if (MCHBAR32(MC_INIT_STATE_ch(channel)) & 0xa000) { |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2921 | printk(BIOS_EMERG, "Mini channel test failed (1): %d\n", channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2922 | return MAKE_ERR; |
| 2923 | } |
| 2924 | FOR_ALL_POPULATED_CHANNELS { |
| 2925 | fill_pattern0(ctrl, channel, 0x12345678, 0x98765432); |
| 2926 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2927 | MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2928 | } |
| 2929 | |
| 2930 | for (slotrank = 0; slotrank < 4; slotrank++) |
| 2931 | FOR_ALL_CHANNELS |
| 2932 | if (ctrl->rankmap[channel] & (1 << slotrank)) { |
| 2933 | FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2934 | MCHBAR32(IOSAV_By_ERROR_COUNT(lane)) = 0; |
| 2935 | MCHBAR32(IOSAV_By_BW_SERROR_C(lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2936 | } |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2937 | wait_for_iosav(channel); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2938 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2939 | /* DRAM command ACT */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2940 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006; |
| 2941 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x0028a004; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2942 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x00060000 | (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2943 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x00000244; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2944 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2945 | /* DRAM command WR */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2946 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x0001f201; |
| 2947 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x08281064; |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 2948 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2949 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x00000242; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2950 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2951 | /* DRAM command RD */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2952 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0001f105; |
| 2953 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x04281064; |
Angel Pons | 63ae8de | 2020-01-10 02:03:47 +0100 | [diff] [blame] | 2954 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2955 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x00000242; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2956 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2957 | /* DRAM command PRE */ |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2958 | MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x0001f002; |
| 2959 | MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x00280c01; |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 2960 | MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = 0x00060400 | (slotrank << 24); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2961 | MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x00000240; |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2962 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2963 | /* Execute command queue */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2964 | MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); |
Felix Held | 9cf1dd2 | 2018-07-31 14:52:40 +0200 | [diff] [blame] | 2965 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2966 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2967 | FOR_ALL_LANES |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2968 | if (MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane))) { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2969 | printk(BIOS_EMERG, "Mini channel test failed (2): %d, %d, %d\n", |
| 2970 | channel, slotrank, lane); |
| 2971 | return MAKE_ERR; |
| 2972 | } |
| 2973 | } |
| 2974 | return 0; |
| 2975 | } |
| 2976 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2977 | void set_scrambling_seed(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2978 | { |
| 2979 | int channel; |
| 2980 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2981 | /* FIXME: we hardcode seeds. Do we need to use some PRNG for them? I don't think so. */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2982 | static u32 seeds[NUM_CHANNELS][3] = { |
| 2983 | {0x00009a36, 0xbafcfdcf, 0x46d1ab68}, |
| 2984 | {0x00028bfa, 0x53fe4b49, 0x19ed5483} |
| 2985 | }; |
| 2986 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 2987 | MCHBAR32(SCHED_CBIT_ch(channel)) &= ~0x10000000; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2988 | MCHBAR32(SCRAMBLING_SEED_1_ch(channel)) = seeds[channel][0]; |
| 2989 | MCHBAR32(SCRAMBLING_SEED_2_HI_ch(channel)) = seeds[channel][1]; |
| 2990 | MCHBAR32(SCRAMBLING_SEED_2_LO_ch(channel)) = seeds[channel][2]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2991 | } |
| 2992 | } |
| 2993 | |
Angel Pons | 89ae6b8 | 2020-03-21 13:23:32 +0100 | [diff] [blame] | 2994 | void set_wmm_behavior(const u32 cpu) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2995 | { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2996 | if (IS_SANDY_CPU(cpu) && (IS_SANDY_CPU_D0(cpu) || IS_SANDY_CPU_D1(cpu))) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2997 | MCHBAR32(SC_WDBWM) = 0x141d1519; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 2998 | } else { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 2999 | MCHBAR32(SC_WDBWM) = 0x551d1519; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3000 | } |
| 3001 | } |
| 3002 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3003 | void prepare_training(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3004 | { |
| 3005 | int channel; |
| 3006 | |
| 3007 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3008 | /* Always drive command bus */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3009 | MCHBAR32_OR(TC_RAP_ch(channel), 0x20000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3010 | } |
| 3011 | |
| 3012 | udelay(1); |
| 3013 | |
| 3014 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3015 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3016 | } |
| 3017 | } |
| 3018 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3019 | void set_read_write_timings(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3020 | { |
| 3021 | int channel, slotrank; |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 3022 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3023 | FOR_ALL_POPULATED_CHANNELS { |
| 3024 | u32 b20, b4_8_12; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3025 | int min_pi = 10000; |
| 3026 | int max_pi = -10000; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3027 | |
| 3028 | FOR_ALL_POPULATED_RANKS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3029 | max_pi = MAX(ctrl->timings[channel][slotrank].pi_coding, max_pi); |
| 3030 | min_pi = MIN(ctrl->timings[channel][slotrank].pi_coding, min_pi); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3031 | } |
| 3032 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3033 | b20 = (max_pi - min_pi > 51) ? 0 : ctrl->ref_card_offset[channel]; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3034 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3035 | b4_8_12 = (ctrl->pi_coding_threshold < max_pi - min_pi) ? 0x3330 : 0x2220; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3036 | |
Patrick Rudolph | 19c3dad | 2016-11-26 11:37:45 +0100 | [diff] [blame] | 3037 | dram_odt_stretch(ctrl, channel); |
| 3038 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3039 | MCHBAR32(TC_RWP_ch(channel)) = 0x0a000000 | (b20 << 20) | |
Felix Held | 2463aa9 | 2018-07-29 21:37:55 +0200 | [diff] [blame] | 3040 | ((ctrl->ref_card_offset[channel] + 2) << 16) | b4_8_12; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3041 | } |
| 3042 | } |
| 3043 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3044 | void set_normal_operation(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3045 | { |
| 3046 | int channel; |
| 3047 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3048 | MCHBAR32(MC_INIT_STATE_ch(channel)) = 0x00001000 | ctrl->rankmap[channel]; |
| 3049 | MCHBAR32_AND(TC_RAP_ch(channel), ~0x20000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3050 | } |
| 3051 | } |
| 3052 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3053 | /* Encode the watermark latencies in a suitable format for graphics drivers consumption */ |
| 3054 | static int encode_wm(int ns) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3055 | { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3056 | return (ns + 499) / 500; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3057 | } |
| 3058 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3059 | /* FIXME: values in this function should be hardware revision-dependent */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3060 | void final_registers(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3061 | { |
Patrick Rudolph | 74203de | 2017-11-20 11:57:01 +0100 | [diff] [blame] | 3062 | const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE; |
| 3063 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3064 | int channel; |
| 3065 | int t1_cycles = 0, t1_ns = 0, t2_ns; |
| 3066 | int t3_ns; |
| 3067 | u32 r32; |
| 3068 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3069 | /* FIXME: This register only exists on Ivy Bridge */ |
| 3070 | MCHBAR32(WMM_READ_CONFIG) = 0x46; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3071 | |
Felix Held | f9b826a | 2018-07-30 17:56:52 +0200 | [diff] [blame] | 3072 | FOR_ALL_CHANNELS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3073 | MCHBAR32_AND_OR(TC_OTHP_ch(channel), 0xffffcfff, 0x1000); |
Patrick Rudolph | 652c491 | 2017-10-31 11:36:55 +0100 | [diff] [blame] | 3074 | |
Patrick Rudolph | 74203de | 2017-11-20 11:57:01 +0100 | [diff] [blame] | 3075 | if (is_mobile) |
Patrick Rudolph | 652c491 | 2017-10-31 11:36:55 +0100 | [diff] [blame] | 3076 | /* APD - DLL Off, 64 DCLKs until idle, decision per rank */ |
Angel Pons | 2a9a49b | 2019-12-31 14:24:12 +0100 | [diff] [blame] | 3077 | MCHBAR32(PM_PDWN_CONFIG) = 0x00000740; |
Patrick Rudolph | 652c491 | 2017-10-31 11:36:55 +0100 | [diff] [blame] | 3078 | else |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3079 | /* APD - PPD, 64 DCLKs until idle, decision per rank */ |
Angel Pons | 2a9a49b | 2019-12-31 14:24:12 +0100 | [diff] [blame] | 3080 | MCHBAR32(PM_PDWN_CONFIG) = 0x00000340; |
Patrick Rudolph | 652c491 | 2017-10-31 11:36:55 +0100 | [diff] [blame] | 3081 | |
Felix Held | f9b826a | 2018-07-30 17:56:52 +0200 | [diff] [blame] | 3082 | FOR_ALL_CHANNELS |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3083 | MCHBAR32(PM_TRML_M_CONFIG_ch(channel)) = 0x00000aaa; |
Felix Held | f9b826a | 2018-07-30 17:56:52 +0200 | [diff] [blame] | 3084 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3085 | MCHBAR32(PM_BW_LIMIT_CONFIG) = 0x5f7003ff; // OK |
| 3086 | MCHBAR32(PM_DLL_CONFIG) = 0x00073000 | ctrl->mdll_wake_delay; // OK |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3087 | |
| 3088 | FOR_ALL_CHANNELS { |
| 3089 | switch (ctrl->rankmap[channel]) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3090 | /* Unpopulated channel */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3091 | case 0: |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3092 | MCHBAR32(PM_CMD_PWR_ch(channel)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3093 | break; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3094 | /* Only single-ranked dimms */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3095 | case 1: |
| 3096 | case 4: |
| 3097 | case 5: |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3098 | MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x00373131; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3099 | break; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3100 | /* Dual-ranked dimms present */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3101 | default: |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3102 | MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x009b6ea1; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3103 | break; |
| 3104 | } |
| 3105 | } |
| 3106 | |
Felix Held | 50b7ed2 | 2019-12-30 20:41:54 +0100 | [diff] [blame] | 3107 | MCHBAR32(MEM_TRML_ESTIMATION_CONFIG) = 0xca9171e5; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3108 | MCHBAR32_AND_OR(MEM_TRML_THRESHOLDS_CONFIG, ~0x00ffffff, 0x00e4d5d0); |
Felix Held | 50b7ed2 | 2019-12-30 20:41:54 +0100 | [diff] [blame] | 3109 | MCHBAR32_AND(MEM_TRML_INTERRUPT, ~0x1f); |
Felix Held | f9b826a | 2018-07-30 17:56:52 +0200 | [diff] [blame] | 3110 | |
| 3111 | FOR_ALL_CHANNELS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3112 | MCHBAR32_AND_OR(TC_RFP_ch(channel), ~(3 << 16), 1 << 16); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3113 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3114 | MCHBAR32_OR(MC_INIT_STATE_G, 1); |
| 3115 | MCHBAR32_OR(MC_INIT_STATE_G, 0x80); |
| 3116 | MCHBAR32(BANDTIMERS_SNB) = 0xfa; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3117 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3118 | /* Find a populated channel */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3119 | FOR_ALL_POPULATED_CHANNELS |
| 3120 | break; |
| 3121 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3122 | t1_cycles = (MCHBAR32(TC_ZQCAL_ch(channel)) >> 8) & 0xff; |
| 3123 | r32 = MCHBAR32(PM_DLL_CONFIG); |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3124 | if (r32 & (1 << 17)) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3125 | t1_cycles += (r32 & 0xfff); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3126 | t1_cycles += MCHBAR32(TC_SRFTP_ch(channel)) & 0xfff; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3127 | t1_ns = t1_cycles * ctrl->tCK / 256 + 544; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3128 | if (!(r32 & (1 << 17))) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3129 | t1_ns += 500; |
| 3130 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3131 | t2_ns = 10 * ((MCHBAR32(SAPMTIMERS) >> 8) & 0xfff); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 3132 | if (MCHBAR32(SAPMCTL) & 8) { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3133 | t3_ns = 10 * ((MCHBAR32(BANDTIMERS_IVB) >> 8) & 0xfff); |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3134 | t3_ns += 10 * (MCHBAR32(SAPMTIMERS2_IVB) & 0xff); |
Angel Pons | 891f2bc | 2020-01-10 01:27:28 +0100 | [diff] [blame] | 3135 | } else { |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3136 | t3_ns = 500; |
| 3137 | } |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3138 | |
| 3139 | /* The graphics driver will use these watermark values */ |
| 3140 | printk(BIOS_DEBUG, "t123: %d, %d, %d\n", t1_ns, t2_ns, t3_ns); |
| 3141 | MCHBAR32_AND_OR(SSKPD, 0xC0C0C0C0, |
| 3142 | ((encode_wm(t1_ns) + encode_wm(t2_ns)) << 16) | (encode_wm(t1_ns) << 8) | |
| 3143 | ((encode_wm(t3_ns) + encode_wm(t2_ns) + encode_wm(t1_ns)) << 24) | 0x0c); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3144 | } |
| 3145 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3146 | void restore_timings(ramctr_timing *ctrl) |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3147 | { |
| 3148 | int channel, slotrank, lane; |
| 3149 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3150 | FOR_ALL_POPULATED_CHANNELS { |
| 3151 | MCHBAR32(TC_RAP_ch(channel)) = |
| 3152 | (ctrl->tRRD << 0) |
| 3153 | | (ctrl->tRTP << 4) |
| 3154 | | (ctrl->tCKE << 8) |
| 3155 | | (ctrl->tWTR << 12) |
| 3156 | | (ctrl->tFAW << 16) |
| 3157 | | (ctrl->tWR << 24) |
| 3158 | | (ctrl->cmd_stretch[channel] << 30); |
| 3159 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3160 | |
| 3161 | udelay(1); |
| 3162 | |
| 3163 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3164 | wait_for_iosav(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3165 | } |
| 3166 | |
| 3167 | FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3168 | MCHBAR32(IOSAV_By_BW_MASK_ch(channel, lane)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3169 | } |
| 3170 | |
| 3171 | FOR_ALL_POPULATED_CHANNELS |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3172 | MCHBAR32_OR(TC_RWP_ch(channel), 0x08000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3173 | |
| 3174 | FOR_ALL_POPULATED_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3175 | udelay(1); |
| 3176 | MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x00200000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3177 | } |
| 3178 | |
| 3179 | printram("CPE\n"); |
| 3180 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3181 | MCHBAR32(GDCRTRAININGMOD) = 0; |
| 3182 | MCHBAR32(IOSAV_DC_MASK) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3183 | |
| 3184 | printram("CP5b\n"); |
| 3185 | |
| 3186 | FOR_ALL_POPULATED_CHANNELS { |
| 3187 | program_timings(ctrl, channel); |
| 3188 | } |
| 3189 | |
| 3190 | u32 reg, addr; |
| 3191 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3192 | /* Poll for RCOMP */ |
| 3193 | while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) |
| 3194 | ; |
| 3195 | |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3196 | do { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3197 | reg = MCHBAR32(IOSAV_STATUS_ch(0)); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3198 | } while ((reg & 0x14) == 0); |
| 3199 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3200 | /* Set state of memory controller */ |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3201 | MCHBAR32(MC_INIT_STATE_G) = 0x116; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3202 | MCHBAR32(MC_INIT_STATE) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3203 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3204 | /* Wait 500us */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3205 | udelay(500); |
| 3206 | |
| 3207 | FOR_ALL_CHANNELS { |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3208 | /* Set valid rank CKE */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3209 | reg = 0; |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3210 | reg = (reg & ~0x0f) | ctrl->rankmap[channel]; |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3211 | addr = MC_INIT_STATE_ch(channel); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3212 | MCHBAR32(addr) = reg; |
| 3213 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3214 | /* Wait 10ns for ranks to settle */ |
| 3215 | // udelay(0.01); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3216 | |
| 3217 | reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4); |
| 3218 | MCHBAR32(addr) = reg; |
| 3219 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3220 | /* Write reset using a NOP */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3221 | write_reset(ctrl); |
| 3222 | } |
| 3223 | |
Angel Pons | 7c49cb8 | 2020-03-16 23:17:32 +0100 | [diff] [blame] | 3224 | /* MRS commands */ |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3225 | dram_mrscommands(ctrl); |
| 3226 | |
| 3227 | printram("CP5c\n"); |
| 3228 | |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3229 | MCHBAR32(GDCRTRAININGMOD_ch(0)) = 0; |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3230 | |
| 3231 | FOR_ALL_CHANNELS { |
Angel Pons | 8852188 | 2020-01-05 20:21:20 +0100 | [diff] [blame] | 3232 | MCHBAR32_AND(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000); |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3233 | udelay(2); |
| 3234 | } |
Patrick Rudolph | fd5fa2a | 2016-11-11 18:22:33 +0100 | [diff] [blame] | 3235 | } |