Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 4 | * Copyright (C) 2007-2009 coresystems GmbH |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 5 | * Copyright (C) 2017 Arthur Heymans <arthur@aheymans.xyz> |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 15 | */ |
| 16 | |
Patrick Georgi | d083595 | 2010-10-05 09:07:10 +0000 | [diff] [blame] | 17 | #include <console/console.h> |
Kyösti Mälkki | 7fbed22 | 2019-07-11 08:14:07 +0300 | [diff] [blame] | 18 | #include <delay.h> |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 19 | #include <device/pci_def.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 20 | #include <device/pci_ops.h> |
Elyes HAOUAS | 420d7e0 | 2019-04-21 18:39:34 +0200 | [diff] [blame] | 21 | #include <cf9_reset.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 22 | #include <device/mmio.h> |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 23 | #include <device/device.h> |
Julius Werner | 7a8a4ab | 2015-05-22 16:26:40 -0700 | [diff] [blame] | 24 | #include <lib.h> |
Edwin Beasant | eb50c7d | 2010-07-06 21:05:04 +0000 | [diff] [blame] | 25 | #include <pc80/mc146818rtc.h> |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 26 | #include <spd.h> |
Patrick Georgi | d083595 | 2010-10-05 09:07:10 +0000 | [diff] [blame] | 27 | #include <string.h> |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 28 | #include "raminit.h" |
| 29 | #include "i945.h" |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 30 | #include "chip.h" |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 31 | #include <device/dram/ddr2.h> |
Patrick Georgi | 771328f | 2015-07-13 19:24:07 +0200 | [diff] [blame] | 32 | #include <timestamp.h> |
Rudolf Marek | c436953 | 2010-12-13 19:59:13 +0000 | [diff] [blame] | 33 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 34 | /* Debugging macros. */ |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 35 | #if CONFIG(DEBUG_RAM_SETUP) |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 36 | #define PRINTK_DEBUG(x...) printk(BIOS_DEBUG, x) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 37 | #else |
| 38 | #define PRINTK_DEBUG(x...) |
| 39 | #endif |
| 40 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 41 | #define RAM_INITIALIZATION_COMPLETE (1 << 19) |
| 42 | |
| 43 | #define RAM_COMMAND_SELF_REFRESH (0x0 << 16) |
| 44 | #define RAM_COMMAND_NOP (0x1 << 16) |
| 45 | #define RAM_COMMAND_PRECHARGE (0x2 << 16) |
| 46 | #define RAM_COMMAND_MRS (0x3 << 16) |
| 47 | #define RAM_COMMAND_EMRS (0x4 << 16) |
| 48 | #define RAM_COMMAND_CBR (0x6 << 16) |
| 49 | #define RAM_COMMAND_NORMAL (0x7 << 16) |
| 50 | |
| 51 | #define RAM_EMRS_1 (0x0 << 21) |
| 52 | #define RAM_EMRS_2 (0x1 << 21) |
| 53 | #define RAM_EMRS_3 (0x2 << 21) |
| 54 | |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 55 | #define DEFAULT_PCI_MMIO_SIZE 768 |
Sven Schnelle | 541269b | 2011-02-21 09:39:17 +0000 | [diff] [blame] | 56 | static int get_dimm_spd_address(struct sys_info *sysinfo, int device) |
| 57 | { |
| 58 | if (sysinfo->spd_addresses) |
| 59 | return sysinfo->spd_addresses[device]; |
| 60 | else |
| 61 | return DIMM0 + device; |
| 62 | |
| 63 | } |
| 64 | |
Stefan Reinauer | bc8613e | 2010-08-25 18:35:42 +0000 | [diff] [blame] | 65 | static __attribute__((noinline)) void do_ram_command(u32 command) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 66 | { |
| 67 | u32 reg32; |
| 68 | |
| 69 | reg32 = MCHBAR32(DCC); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 70 | reg32 &= ~((3<<21) | (1<<20) | (1<<19) | (7 << 16)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 71 | reg32 |= command; |
| 72 | |
| 73 | /* Also set Init Complete */ |
| 74 | if (command == RAM_COMMAND_NORMAL) |
| 75 | reg32 |= RAM_INITIALIZATION_COMPLETE; |
| 76 | |
| 77 | PRINTK_DEBUG(" Sending RAM command 0x%08x", reg32); |
| 78 | |
| 79 | MCHBAR32(DCC) = reg32; /* This is the actual magic */ |
| 80 | |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 81 | PRINTK_DEBUG("...done\n"); |
Stefan Reinauer | d058ad1 | 2010-08-26 12:43:58 +0000 | [diff] [blame] | 82 | |
| 83 | udelay(1); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 84 | } |
| 85 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 86 | static void ram_read32(u32 offset) |
| 87 | { |
Elyes HAOUAS | 15279a9 | 2016-07-28 21:05:26 +0200 | [diff] [blame] | 88 | PRINTK_DEBUG(" RAM read: %08x\n", offset); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 89 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 90 | read32((void *)offset); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 91 | } |
| 92 | |
Stefan Reinauer | 3c0bfaf | 2010-12-27 11:34:57 +0000 | [diff] [blame] | 93 | void sdram_dump_mchbar_registers(void) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 94 | { |
| 95 | int i; |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 96 | printk(BIOS_DEBUG, "Dumping MCHBAR Registers\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 97 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 98 | for (i = 0; i < 0xfff; i += 4) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 99 | if (MCHBAR32(i) == 0) |
| 100 | continue; |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 101 | printk(BIOS_DEBUG, "0x%04x: 0x%08x\n", i, MCHBAR32(i)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 102 | } |
| 103 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 104 | |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 105 | static int memclk(void) |
| 106 | { |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 107 | int offset = CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) ? 1 : 0; |
Elyes HAOUAS | c9848a8 | 2016-10-09 20:24:20 +0200 | [diff] [blame] | 108 | |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 109 | switch (((MCHBAR32(CLKCFG) >> 4) & 7) - offset) { |
| 110 | case 1: return 400; |
| 111 | case 2: return 533; |
| 112 | case 3: return 667; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 113 | default: |
| 114 | printk(BIOS_DEBUG, "memclk: unknown register value %x\n", |
| 115 | ((MCHBAR32(CLKCFG) >> 4) & 7) - offset); |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 116 | } |
| 117 | return -1; |
| 118 | } |
| 119 | |
Peter Stuge | 76d9143 | 2010-10-01 10:02:33 +0000 | [diff] [blame] | 120 | static u16 fsbclk(void) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 121 | { |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 122 | if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM)) { |
Elyes HAOUAS | c9848a8 | 2016-10-09 20:24:20 +0200 | [diff] [blame] | 123 | switch (MCHBAR32(CLKCFG) & 7) { |
| 124 | case 0: return 400; |
| 125 | case 1: return 533; |
| 126 | case 3: return 667; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 127 | default: |
| 128 | printk(BIOS_DEBUG, "fsbclk: unknown register value %x\n", |
| 129 | MCHBAR32(CLKCFG) & 7); |
Elyes HAOUAS | c9848a8 | 2016-10-09 20:24:20 +0200 | [diff] [blame] | 130 | } |
| 131 | return 0xffff; |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 132 | } else if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC)) { |
Elyes HAOUAS | c9848a8 | 2016-10-09 20:24:20 +0200 | [diff] [blame] | 133 | switch (MCHBAR32(CLKCFG) & 7) { |
| 134 | case 0: return 1066; |
| 135 | case 1: return 533; |
| 136 | case 2: return 800; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 137 | default: |
| 138 | printk(BIOS_DEBUG, "fsbclk: unknown register value %x\n", |
| 139 | MCHBAR32(CLKCFG) & 7); |
Elyes HAOUAS | c9848a8 | 2016-10-09 20:24:20 +0200 | [diff] [blame] | 140 | } |
| 141 | return 0xffff; |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 142 | } |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 143 | } |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 144 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 145 | static int sdram_capabilities_max_supported_memory_frequency(void) |
| 146 | { |
| 147 | u32 reg32; |
| 148 | |
Patrick Georgi | 77d6683 | 2010-10-01 08:02:45 +0000 | [diff] [blame] | 149 | #if CONFIG_MAXIMUM_SUPPORTED_FREQUENCY |
| 150 | return CONFIG_MAXIMUM_SUPPORTED_FREQUENCY; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 151 | #endif |
| 152 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 153 | reg32 = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xe4); /* CAPID0 + 4 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 154 | reg32 &= (7 << 0); |
| 155 | |
| 156 | switch (reg32) { |
| 157 | case 4: return 400; |
| 158 | case 3: return 533; |
| 159 | case 2: return 667; |
| 160 | } |
| 161 | /* Newer revisions of this chipset rather support faster memory clocks, |
| 162 | * so if it's a reserved value, return the fastest memory clock that we |
| 163 | * know of and can handle |
| 164 | */ |
| 165 | return 667; |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * @brief determine whether chipset is capable of dual channel interleaved mode |
| 170 | * |
| 171 | * @return 1 if interleaving is supported, 0 otherwise |
| 172 | */ |
| 173 | static int sdram_capabilities_interleave(void) |
| 174 | { |
| 175 | u32 reg32; |
| 176 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 177 | reg32 = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xe4); /* CAPID0 + 4 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 178 | reg32 >>= 25; |
| 179 | reg32 &= 1; |
| 180 | |
| 181 | return (!reg32); |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * @brief determine whether chipset is capable of two memory channels |
| 186 | * |
| 187 | * @return 1 if dual channel operation is supported, 0 otherwise |
| 188 | */ |
| 189 | static int sdram_capabilities_dual_channel(void) |
| 190 | { |
| 191 | u32 reg32; |
| 192 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 193 | reg32 = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xe4); /* CAPID0 + 4 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 194 | reg32 >>= 24; |
| 195 | reg32 &= 1; |
| 196 | |
| 197 | return (!reg32); |
| 198 | } |
| 199 | |
| 200 | static int sdram_capabilities_enhanced_addressing_xor(void) |
| 201 | { |
| 202 | u8 reg8; |
| 203 | |
| 204 | reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5); /* CAPID0 + 5 */ |
| 205 | reg8 &= (1 << 7); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 206 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 207 | return (!reg8); |
| 208 | } |
| 209 | |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 210 | // TODO check if we ever need this function |
Stefan Reinauer | 53b0ea4 | 2010-03-22 11:50:52 +0000 | [diff] [blame] | 211 | #if 0 |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 212 | static int sdram_capabilities_MEM4G_disable(void) |
| 213 | { |
| 214 | u8 reg8; |
| 215 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 216 | reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5); /* CAPID0 + 5 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 217 | reg8 &= (1 << 0); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 218 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 219 | return (reg8 != 0); |
| 220 | } |
Stefan Reinauer | 53b0ea4 | 2010-03-22 11:50:52 +0000 | [diff] [blame] | 221 | #endif |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 222 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 223 | #define GFX_FREQUENCY_CAP_166MHZ 0x04 |
| 224 | #define GFX_FREQUENCY_CAP_200MHZ 0x03 |
| 225 | #define GFX_FREQUENCY_CAP_250MHZ 0x02 |
| 226 | #define GFX_FREQUENCY_CAP_ALL 0x00 |
| 227 | |
| 228 | static int sdram_capabilities_core_frequencies(void) |
| 229 | { |
| 230 | u8 reg8; |
| 231 | |
| 232 | reg8 = pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe5); /* CAPID0 + 5 */ |
| 233 | reg8 &= (1 << 3) | (1 << 2) | (1 << 1); |
| 234 | reg8 >>= 1; |
| 235 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 236 | return reg8; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 237 | } |
| 238 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 239 | static void sdram_detect_errors(struct sys_info *sysinfo) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 240 | { |
| 241 | u8 reg8; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 242 | u8 do_reset = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 243 | |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 244 | reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 245 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 246 | if (reg8 & ((1<<7)|(1<<2))) { |
| 247 | if (reg8 & (1<<2)) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 248 | printk(BIOS_DEBUG, "SLP S4# Assertion Width Violation.\n"); |
Stefan Reinauer | f98ad3a | 2010-03-05 18:25:19 +0000 | [diff] [blame] | 249 | /* Write back clears bit 2 */ |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 250 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8); |
Stefan Reinauer | f98ad3a | 2010-03-05 18:25:19 +0000 | [diff] [blame] | 251 | do_reset = 1; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 252 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | if (reg8 & (1<<7)) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 256 | printk(BIOS_DEBUG, "DRAM initialization was interrupted.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 257 | reg8 &= ~(1<<7); |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 258 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 259 | do_reset = 1; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | /* Set SLP_S3# Assertion Stretch Enable */ |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 263 | reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_3); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 264 | reg8 |= (1 << 3); |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 265 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_3, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 266 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 267 | if (do_reset) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 268 | printk(BIOS_DEBUG, "Reset required.\n"); |
Elyes HAOUAS | 420d7e0 | 2019-04-21 18:39:34 +0200 | [diff] [blame] | 269 | full_reset(); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 270 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | /* Set DRAM initialization bit in ICH7 */ |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 274 | reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 275 | reg8 |= (1<<7); |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 276 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 277 | |
Peter Stuge | 751508a | 2012-01-27 22:17:09 +0100 | [diff] [blame] | 278 | /* clear self refresh status if check is disabled or not a resume */ |
Julius Werner | 5d1f9a0 | 2019-03-07 17:07:26 -0800 | [diff] [blame] | 279 | if (!CONFIG(CHECK_SLFRCS_ON_RESUME) |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 280 | || sysinfo->boot_path != BOOT_PATH_RESUME) { |
Patrick Georgi | 86a1110 | 2013-03-15 14:11:37 +0100 | [diff] [blame] | 281 | MCHBAR8(SLFRCS) |= 3; |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 282 | } else { |
| 283 | /* Validate self refresh config */ |
| 284 | if (((sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED) || |
| 285 | (sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED)) && |
Patrick Georgi | 86a1110 | 2013-03-15 14:11:37 +0100 | [diff] [blame] | 286 | !(MCHBAR8(SLFRCS) & (1<<0))) { |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 287 | do_reset = 1; |
| 288 | } |
| 289 | if (((sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED) || |
| 290 | (sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED)) && |
Patrick Georgi | 86a1110 | 2013-03-15 14:11:37 +0100 | [diff] [blame] | 291 | !(MCHBAR8(SLFRCS) & (1<<1))) { |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 292 | do_reset = 1; |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | if (do_reset) { |
| 297 | printk(BIOS_DEBUG, "Reset required.\n"); |
Elyes HAOUAS | 420d7e0 | 2019-04-21 18:39:34 +0200 | [diff] [blame] | 298 | full_reset(); |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 299 | } |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 300 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 301 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 302 | struct timings { |
| 303 | u32 min_tCLK_cas[8]; |
| 304 | u32 min_tRAS; |
| 305 | u32 min_tRP; |
| 306 | u32 min_tRCD; |
| 307 | u32 min_tWR; |
| 308 | u32 min_tRFC; |
| 309 | u32 max_tRR; |
| 310 | u8 cas_mask; |
| 311 | }; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 312 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 313 | /** |
| 314 | * @brief loop over dimms and save maximal timings |
| 315 | */ |
| 316 | static void gather_common_timing(struct sys_info *sysinfo, |
| 317 | struct timings *saved_timings) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 318 | { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 319 | |
| 320 | int i, j; |
| 321 | u8 raw_spd[SPD_SIZE_MAX_DDR2]; |
| 322 | u8 dimm_mask = 0; |
| 323 | |
| 324 | memset(saved_timings, 0, sizeof(*saved_timings)); |
| 325 | saved_timings->max_tRR = UINT32_MAX; |
| 326 | saved_timings->cas_mask = SPD_CAS_LATENCY_DDR2_3 |
| 327 | | SPD_CAS_LATENCY_DDR2_4 | SPD_CAS_LATENCY_DDR2_5; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 328 | |
| 329 | /** |
| 330 | * i945 supports two DIMMs, in two configurations: |
| 331 | * |
Uwe Hermann | d773fd3 | 2010-11-20 20:23:08 +0000 | [diff] [blame] | 332 | * - single channel with two DIMMs |
| 333 | * - dual channel with one DIMM per channel |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 334 | * |
Uwe Hermann | d773fd3 | 2010-11-20 20:23:08 +0000 | [diff] [blame] | 335 | * In practice dual channel mainboards have their SPD at 0x50/0x52 |
| 336 | * whereas single channel configurations have their SPD at 0x50/0x51. |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 337 | * |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 338 | * The capability register knows a lot about the channel configuration |
Uwe Hermann | d773fd3 | 2010-11-20 20:23:08 +0000 | [diff] [blame] | 339 | * but for now we stick with the information we gather via SPD. |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 340 | */ |
| 341 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 342 | printk(BIOS_DEBUG, "This mainboard supports "); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 343 | if (sdram_capabilities_dual_channel()) { |
| 344 | sysinfo->dual_channel = 1; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 345 | printk(BIOS_DEBUG, "Dual Channel Operation.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 346 | } else { |
| 347 | sysinfo->dual_channel = 0; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 348 | printk(BIOS_DEBUG, "only Single Channel Operation.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 349 | } |
| 350 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 351 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 352 | for (i = 0; i < (2 * DIMM_SOCKETS); i++) { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 353 | int device = get_dimm_spd_address(sysinfo, i), bytes_read; |
Arthur Heymans | fc31e44 | 2018-02-12 15:12:34 +0100 | [diff] [blame] | 354 | struct dimm_attr_ddr2_st dimm_info; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 355 | |
| 356 | /* Initialize the socket information with a sane value */ |
| 357 | sysinfo->dimm[i] = SYSINFO_DIMM_NOT_POPULATED; |
| 358 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 359 | /* Dual Channel not supported, but Channel 1? Bail out */ |
| 360 | if (!sdram_capabilities_dual_channel() && (i >> 1)) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 361 | continue; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 362 | |
Kyösti Mälkki | bd65985 | 2020-01-05 20:00:18 +0200 | [diff] [blame] | 363 | if (smbus_read_byte(device, SPD_MEMORY_TYPE) != |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 364 | SPD_MEMORY_TYPE_SDRAM_DDR2) { |
| 365 | printk(BIOS_DEBUG, "DDR II Channel %d Socket %d: N/A\n", |
| 366 | (i >> 1), (i & 1)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 367 | continue; |
| 368 | } |
| 369 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 370 | /* |
| 371 | * spd_decode_ddr2() needs a 128-byte sized array but |
| 372 | * only the first 64 bytes contain data needed for raminit. |
| 373 | */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 374 | |
Kyösti Mälkki | c01a505 | 2019-01-30 09:39:23 +0200 | [diff] [blame] | 375 | bytes_read = i2c_eeprom_read(device, 0, 64, raw_spd); |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 376 | printk(BIOS_DEBUG, "Reading SPD using i2c block operation.\n"); |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 377 | if (CONFIG(DEBUG_RAM_SETUP) && bytes_read > 0) |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 378 | hexdump(raw_spd, bytes_read); |
Arthur Heymans | 5661945 | 2017-09-21 09:12:42 +0200 | [diff] [blame] | 379 | if (bytes_read != 64) { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 380 | /* Try again with SMBUS byte read */ |
| 381 | printk(BIOS_DEBUG, "i2c block operation failed," |
Paul Menzel | 105e368 | 2017-09-21 08:11:05 +0200 | [diff] [blame] | 382 | " trying smbus byte operation.\n"); |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 383 | for (j = 0; j < 64; j++) |
Kyösti Mälkki | bd65985 | 2020-01-05 20:00:18 +0200 | [diff] [blame] | 384 | raw_spd[j] = smbus_read_byte(device, j); |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 385 | if (CONFIG(DEBUG_RAM_SETUP)) |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 386 | hexdump(raw_spd, 64); |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 387 | } |
Arthur Heymans | 5661945 | 2017-09-21 09:12:42 +0200 | [diff] [blame] | 388 | |
| 389 | if (spd_decode_ddr2(&dimm_info, raw_spd) != SPD_STATUS_OK) { |
| 390 | printk(BIOS_WARNING, "Encountered problems with SPD, " |
| 391 | "skipping this DIMM.\n"); |
| 392 | continue; |
| 393 | } |
| 394 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 395 | if (CONFIG(DEBUG_RAM_SETUP)) |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 396 | dram_print_spd_ddr2(&dimm_info); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 397 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 398 | if (dimm_info.flags.is_ecc) |
| 399 | die("\nError: ECC memory not supported by this chipset\n"); |
| 400 | |
| 401 | if (spd_dimm_is_registered_ddr2(dimm_info.dimm_type)) |
| 402 | die("\nError: Registered memory not supported by this chipset\n"); |
| 403 | |
| 404 | printk(BIOS_DEBUG, "DDR II Channel %d Socket %d: ", (i >> 1), |
| 405 | (i & 1)); |
| 406 | /** |
| 407 | * There are 5 different possible populations for a DIMM socket: |
| 408 | * 0. x16 double ranked (X16DS) |
| 409 | * 1. x8 double ranked (X8DS) |
| 410 | * 2. x16 single ranked (X16SS) |
| 411 | * 3. x8 double stacked (X8DDS) |
| 412 | * 4. Unpopulated |
| 413 | */ |
| 414 | switch (dimm_info.width) { |
| 415 | case 8: |
| 416 | switch (dimm_info.ranks) { |
| 417 | case 2: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 418 | printk(BIOS_DEBUG, "x8DDS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 419 | sysinfo->dimm[i] = SYSINFO_DIMM_X8DDS; |
| 420 | break; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 421 | case 1: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 422 | printk(BIOS_DEBUG, "x8DS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 423 | sysinfo->dimm[i] = SYSINFO_DIMM_X8DS; |
| 424 | break; |
| 425 | default: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 426 | printk(BIOS_DEBUG, "Unsupported.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 427 | } |
| 428 | break; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 429 | case 16: |
| 430 | switch (dimm_info.ranks) { |
| 431 | case 2: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 432 | printk(BIOS_DEBUG, "x16DS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 433 | sysinfo->dimm[i] = SYSINFO_DIMM_X16DS; |
| 434 | break; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 435 | case 1: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 436 | printk(BIOS_DEBUG, "x16SS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 437 | sysinfo->dimm[i] = SYSINFO_DIMM_X16SS; |
| 438 | break; |
| 439 | default: |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 440 | printk(BIOS_DEBUG, "Unsupported.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 441 | } |
| 442 | break; |
| 443 | default: |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 444 | die("Unsupported DDR-II memory width.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 445 | } |
| 446 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 447 | /* Is the current DIMM a stacked DIMM? */ |
| 448 | if (dimm_info.flags.stacked) |
| 449 | sysinfo->package = SYSINFO_PACKAGE_STACKED; |
| 450 | |
| 451 | if (!dimm_info.flags.bl8) |
| 452 | die("Only DDR-II RAM with burst length 8 is supported by this chipset.\n"); |
| 453 | |
| 454 | if (dimm_info.ranksize_mb < 128) |
| 455 | die("DDR-II rank size smaller than 128MB is not supported.\n"); |
| 456 | |
| 457 | sysinfo->banksize[i * 2] = dimm_info.ranksize_mb / 32; |
| 458 | printk(BIOS_DEBUG, "DIMM %d side 0 = %d MB\n", i, |
| 459 | sysinfo->banksize[i * 2] * 32); |
| 460 | if (dimm_info.ranks == 2) { |
| 461 | sysinfo->banksize[(i * 2) + 1] = |
| 462 | dimm_info.ranksize_mb / 32; |
| 463 | printk(BIOS_DEBUG, "DIMM %d side 1 = %d MB\n", |
| 464 | i, sysinfo->banksize[(i * 2) + 1] * 32); |
| 465 | } |
| 466 | |
| 467 | |
| 468 | sysinfo->rows[i] = dimm_info.row_bits; |
| 469 | sysinfo->cols[i] = dimm_info.col_bits; |
| 470 | sysinfo->banks[i] = dimm_info.banks; |
| 471 | |
| 472 | /* int min_tRAS, min_tRP, min_tRCD, min_tWR, min_tRFC; */ |
| 473 | saved_timings->min_tRAS = MAX(saved_timings->min_tRAS, |
| 474 | dimm_info.tRAS); |
| 475 | saved_timings->min_tRP = MAX(saved_timings->min_tRP, |
| 476 | dimm_info.tRP); |
| 477 | saved_timings->min_tRCD = MAX(saved_timings->min_tRCD, |
| 478 | dimm_info.tRCD); |
| 479 | saved_timings->min_tWR = MAX(saved_timings->min_tWR, |
| 480 | dimm_info.tWR); |
| 481 | saved_timings->min_tRFC = MAX(saved_timings->min_tRFC, |
| 482 | dimm_info.tRFC); |
| 483 | saved_timings->max_tRR = MIN(saved_timings->max_tRR, |
| 484 | dimm_info.tRR); |
| 485 | saved_timings->cas_mask &= dimm_info.cas_supported; |
| 486 | for (j = 0; j < 8; j++) { |
| 487 | if (!(saved_timings->cas_mask & (1 << j))) |
| 488 | saved_timings->min_tCLK_cas[j] = 0; |
| 489 | else |
| 490 | saved_timings->min_tCLK_cas[j] = |
| 491 | MAX(dimm_info.cycle_time[j], |
| 492 | saved_timings->min_tCLK_cas[j]); |
| 493 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 494 | dimm_mask |= (1 << i); |
| 495 | } |
Elyes HAOUAS | 9749a85 | 2018-05-09 19:06:46 +0200 | [diff] [blame] | 496 | if (!dimm_mask) |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 497 | die("No memory installed.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 498 | |
Elyes HAOUAS | 9749a85 | 2018-05-09 19:06:46 +0200 | [diff] [blame] | 499 | if (!(dimm_mask & ((1 << DIMM_SOCKETS) - 1))) |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 500 | /* Possibly does not boot in this case */ |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 501 | printk(BIOS_INFO, "Channel 0 has no memory populated.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 502 | } |
| 503 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 504 | static void choose_tclk(struct sys_info *sysinfo, |
| 505 | struct timings *saved_timings) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 506 | { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 507 | u32 ctrl_min_tclk; |
| 508 | int try_cas; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 509 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 510 | ctrl_min_tclk = 2 * 256 * 1000 |
| 511 | / sdram_capabilities_max_supported_memory_frequency(); |
| 512 | normalize_tck(&ctrl_min_tclk); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 513 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 514 | try_cas = spd_get_msbs(saved_timings->cas_mask); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 515 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 516 | while (saved_timings->cas_mask & (1 << try_cas) && try_cas > 0) { |
| 517 | sysinfo->cas = try_cas; |
| 518 | sysinfo->tclk = saved_timings->min_tCLK_cas[try_cas]; |
| 519 | if (sysinfo->tclk >= ctrl_min_tclk && |
| 520 | saved_timings->min_tCLK_cas[try_cas] != |
| 521 | saved_timings->min_tCLK_cas[try_cas - 1]) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 522 | break; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 523 | try_cas--; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 524 | } |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 525 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 526 | normalize_tck(&sysinfo->tclk); |
| 527 | |
| 528 | if ((sysinfo->cas < 3) || (sysinfo->tclk == 0)) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 529 | die("Could not find common memory frequency and CAS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 530 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 531 | /* |
| 532 | * The loop can still results in a timing too fast for the |
| 533 | * memory controller. |
| 534 | */ |
| 535 | if (sysinfo->tclk < ctrl_min_tclk) |
| 536 | sysinfo->tclk = ctrl_min_tclk; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 537 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 538 | switch (sysinfo->tclk) { |
| 539 | case TCK_200MHZ: |
| 540 | sysinfo->memory_frequency = 400; |
| 541 | break; |
| 542 | case TCK_266MHZ: |
| 543 | sysinfo->memory_frequency = 533; |
| 544 | break; |
| 545 | case TCK_333MHZ: |
| 546 | sysinfo->memory_frequency = 667; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 547 | break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 548 | } |
| 549 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 550 | printk(BIOS_DEBUG, |
| 551 | "Memory will be driven at %dMT with CAS=%d clocks\n", |
| 552 | sysinfo->memory_frequency, sysinfo->cas); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 553 | } |
| 554 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 555 | static void derive_timings(struct sys_info *sysinfo, |
| 556 | struct timings *saved_timings) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 557 | { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 558 | sysinfo->tras = DIV_ROUND_UP(saved_timings->min_tRAS, sysinfo->tclk); |
| 559 | if (sysinfo->tras > 0x18) |
| 560 | die("DDR-II Module does not support this frequency (tRAS error)\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 561 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 562 | sysinfo->trp = DIV_ROUND_UP(saved_timings->min_tRP, sysinfo->tclk); |
| 563 | if (sysinfo->trp > 6) |
| 564 | die("DDR-II Module does not support this frequency (tRP error)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 565 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 566 | sysinfo->trcd = DIV_ROUND_UP(saved_timings->min_tRCD, sysinfo->tclk); |
| 567 | if (sysinfo->trcd > 6) |
| 568 | die("DDR-II Module does not support this frequency (tRCD error)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 569 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 570 | sysinfo->twr = DIV_ROUND_UP(saved_timings->min_tWR, sysinfo->tclk); |
| 571 | if (sysinfo->twr > 5) |
| 572 | die("DDR-II Module does not support this frequency (tWR error)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 573 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 574 | sysinfo->trfc = DIV_ROUND_UP(saved_timings->min_tRFC, sysinfo->tclk); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 575 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 576 | printk(BIOS_DEBUG, "tRAS = %d cycles\n", sysinfo->tras); |
| 577 | printk(BIOS_DEBUG, "tRP = %d cycles\n", sysinfo->trp); |
| 578 | printk(BIOS_DEBUG, "tRCD = %d cycles\n", sysinfo->trcd); |
| 579 | printk(BIOS_DEBUG, "tWR = %d cycles\n", sysinfo->twr); |
| 580 | printk(BIOS_DEBUG, "tRFC = %d cycles\n", sysinfo->trfc); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 581 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 582 | /* Refresh is slower than 15.6us, use 15.6us */ |
| 583 | /* tRR is decoded in units of 1/256us */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 584 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 585 | #define T_RR_7_8US 2000000 |
| 586 | #define T_RR_15_6US 4000000 |
| 587 | #define REFRESH_7_8US 1 |
| 588 | #define REFRESH_15_6US 0 |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 589 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 590 | if (saved_timings->max_tRR < T_RR_7_8US) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 591 | die("DDR-II module has unsupported refresh value\n"); |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 592 | else if (saved_timings->max_tRR < T_RR_15_6US) |
| 593 | sysinfo->refresh = REFRESH_7_8US; |
| 594 | else |
| 595 | sysinfo->refresh = REFRESH_15_6US; |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 596 | printk(BIOS_DEBUG, "Refresh: %s\n", sysinfo->refresh?"7.8us":"15.6us"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 597 | } |
| 598 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 599 | /** |
| 600 | * @brief Get generic DIMM parameters. |
| 601 | * @param sysinfo Central memory controller information structure |
| 602 | * |
| 603 | * This function gathers several pieces of information for each system DIMM: |
| 604 | * o DIMM width (x8 / x16) |
| 605 | * o DIMM rank (single ranked / dual ranked) |
| 606 | * |
| 607 | * Also, some non-supported scenarios are detected. |
| 608 | */ |
| 609 | |
| 610 | static void sdram_get_dram_configuration(struct sys_info *sysinfo) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 611 | { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 612 | struct timings saved_timings; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 613 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 614 | gather_common_timing(sysinfo, &saved_timings); |
| 615 | choose_tclk(sysinfo, &saved_timings); |
| 616 | derive_timings(sysinfo, &saved_timings); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 617 | } |
| 618 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 619 | static void sdram_program_dram_width(struct sys_info *sysinfo) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 620 | { |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 621 | u16 c0dramw = 0, c1dramw = 0; |
Elyes HAOUAS | a4fc7be | 2018-06-30 10:39:24 +0200 | [diff] [blame] | 622 | int i, idx; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 623 | |
| 624 | if (sysinfo->dual_channel) |
| 625 | idx = 2; |
| 626 | else |
| 627 | idx = 1; |
| 628 | |
Elyes HAOUAS | a4fc7be | 2018-06-30 10:39:24 +0200 | [diff] [blame] | 629 | for (i = 0; i < DIMM_SOCKETS; i++) { /* Channel 0 */ |
| 630 | switch (sysinfo->dimm[i]) { |
| 631 | case SYSINFO_DIMM_X16DS: |
| 632 | c0dramw |= (0x0000) << 4*(i % 2); |
| 633 | break; |
| 634 | case SYSINFO_DIMM_X8DS: |
| 635 | c0dramw |= (0x0001) << 4*(i % 2); |
| 636 | break; |
| 637 | case SYSINFO_DIMM_X16SS: |
| 638 | c0dramw |= (0x0000) << 4*(i % 2); |
| 639 | break; |
| 640 | case SYSINFO_DIMM_X8DDS: |
| 641 | c0dramw |= (0x0005) << 4*(i % 2); |
| 642 | break; |
| 643 | case SYSINFO_DIMM_NOT_POPULATED: |
| 644 | c0dramw |= (0x0000) << 4*(i % 2); |
| 645 | break; |
| 646 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 647 | } |
Elyes HAOUAS | a4fc7be | 2018-06-30 10:39:24 +0200 | [diff] [blame] | 648 | for (i = DIMM_SOCKETS; i < idx * DIMM_SOCKETS; i++) { /* Channel 1 */ |
| 649 | switch (sysinfo->dimm[i]) { |
| 650 | case SYSINFO_DIMM_X16DS: |
| 651 | c1dramw |= (0x0000) << 4*(i % 2); |
| 652 | break; |
| 653 | case SYSINFO_DIMM_X8DS: |
Patrick Georgi | 68aed91 | 2018-11-16 18:00:12 +0100 | [diff] [blame] | 654 | c1dramw |= (0x0010) << 4*(i % 2); |
Elyes HAOUAS | a4fc7be | 2018-06-30 10:39:24 +0200 | [diff] [blame] | 655 | break; |
| 656 | case SYSINFO_DIMM_X16SS: |
| 657 | c1dramw |= (0x0000) << 4*(i % 2); |
| 658 | break; |
| 659 | case SYSINFO_DIMM_X8DDS: |
Patrick Georgi | 68aed91 | 2018-11-16 18:00:12 +0100 | [diff] [blame] | 660 | c1dramw |= (0x0050) << 4*(i % 2); |
Elyes HAOUAS | a4fc7be | 2018-06-30 10:39:24 +0200 | [diff] [blame] | 661 | break; |
| 662 | case SYSINFO_DIMM_NOT_POPULATED: |
| 663 | c1dramw |= (0x0000) << 4*(i % 2); |
| 664 | break; |
| 665 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 666 | } |
| 667 | |
| 668 | MCHBAR16(C0DRAMW) = c0dramw; |
| 669 | MCHBAR16(C1DRAMW) = c1dramw; |
| 670 | } |
| 671 | |
| 672 | static void sdram_write_slew_rates(u32 offset, const u32 *slew_rate_table) |
| 673 | { |
| 674 | int i; |
| 675 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 676 | for (i = 0; i < 16; i++) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 677 | MCHBAR32(offset+(i*4)) = slew_rate_table[i]; |
| 678 | } |
| 679 | |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 680 | static const u32 dq2030[] = { |
| 681 | 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e, |
| 682 | 0x1a181614, 0x22201e1c, 0x2a282624, 0x3934302d, |
| 683 | 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f, |
| 684 | 0x19171513, 0x211f1d1b, 0x2d292623, 0x3f393531 |
| 685 | }; |
| 686 | |
| 687 | static const u32 dq2330[] = { |
| 688 | 0x08070706, 0x0a090908, 0x0d0c0b0a, 0x12100f0e, |
| 689 | 0x1a181614, 0x22201e1c, 0x2a282624, 0x3934302d, |
| 690 | 0x0a090908, 0x0c0b0b0a, 0x0e0d0d0c, 0x1211100f, |
| 691 | 0x19171513, 0x211f1d1b, 0x2d292623, 0x3f393531 |
| 692 | }; |
| 693 | |
| 694 | static const u32 cmd2710[] = { |
| 695 | 0x07060605, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b, |
| 696 | 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, |
| 697 | 0x1110100f, 0x0f0d0b09, 0x19171411, 0x1f1f1d1b, |
| 698 | 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f |
| 699 | }; |
| 700 | |
| 701 | static const u32 cmd3210[] = { |
| 702 | 0x0f0d0b0a, 0x17151311, 0x1f1d1b19, 0x1f1f1f1f, |
| 703 | 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, |
| 704 | 0x18171615, 0x1f1f1c1a, 0x1f1f1f1f, 0x1f1f1f1f, |
| 705 | 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f, 0x1f1f1f1f |
| 706 | }; |
| 707 | |
| 708 | static const u32 clk2030[] = { |
| 709 | 0x0e0d0d0c, 0x100f0f0e, 0x100f0e0d, 0x15131211, |
| 710 | 0x1d1b1917, 0x2523211f, 0x2a282927, 0x32302e2c, |
| 711 | 0x17161514, 0x1b1a1918, 0x1f1e1d1c, 0x23222120, |
| 712 | 0x27262524, 0x2d2b2928, 0x3533312f, 0x3d3b3937 |
| 713 | }; |
| 714 | |
| 715 | static const u32 ctl3215[] = { |
| 716 | 0x01010000, 0x03020101, 0x07060504, 0x0b0a0908, |
| 717 | 0x100f0e0d, 0x14131211, 0x18171615, 0x1c1b1a19, |
| 718 | 0x05040403, 0x07060605, 0x0a090807, 0x0f0d0c0b, |
| 719 | 0x14131211, 0x18171615, 0x1c1b1a19, 0x201f1e1d |
| 720 | }; |
| 721 | |
| 722 | static const u32 ctl3220[] = { |
| 723 | 0x05040403, 0x07060505, 0x0e0c0a08, 0x1a171411, |
| 724 | 0x2825221f, 0x35322f2b, 0x3e3e3b38, 0x3e3e3e3e, |
| 725 | 0x09080807, 0x0b0a0a09, 0x0f0d0c0b, 0x1b171311, |
| 726 | 0x2825221f, 0x35322f2b, 0x3e3e3b38, 0x3e3e3e3e |
| 727 | }; |
| 728 | |
| 729 | static const u32 nc[] = { |
| 730 | 0x00000000, 0x00000000, 0x00000000, 0x00000000, |
| 731 | 0x00000000, 0x00000000, 0x00000000, 0x00000000, |
| 732 | 0x00000000, 0x00000000, 0x00000000, 0x00000000, |
| 733 | 0x00000000, 0x00000000, 0x00000000, 0x00000000 |
| 734 | }; |
| 735 | |
| 736 | enum { |
| 737 | DQ2030, |
| 738 | DQ2330, |
| 739 | CMD2710, |
| 740 | CMD3210, |
| 741 | CLK2030, |
| 742 | CTL3215, |
| 743 | CTL3220, |
| 744 | NC, |
| 745 | }; |
| 746 | |
| 747 | static const u8 dual_channel_slew_group_lookup[] = { |
| 748 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 749 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 750 | DQ2030, CMD3210, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 751 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD2710, |
| 752 | DQ2030, CMD3210, NC, CTL3215, NC, CLK2030, NC, NC, |
| 753 | |
| 754 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 755 | DQ2030, CMD3210, CTL3215, NC, CLK2030, NC, DQ2030, CMD3210, |
| 756 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 757 | DQ2030, CMD3210, CTL3215, NC, CLK2030, NC, DQ2030, CMD2710, |
| 758 | DQ2030, CMD3210, CTL3215, NC, CLK2030, NC, NC, NC, |
| 759 | |
| 760 | DQ2030, CMD3210, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 761 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 762 | DQ2030, CMD3210, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 763 | DQ2030, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD2710, |
| 764 | DQ2030, CMD3210, NC, CTL3215, NC, CLK2030, NC, NC, |
| 765 | |
| 766 | DQ2030, CMD2710, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 767 | DQ2030, CMD2710, CTL3215, NC, CLK2030, NC, DQ2030, CMD3210, |
| 768 | DQ2030, CMD2710, CTL3215, CTL3215, CLK2030, CLK2030, DQ2030, CMD3210, |
| 769 | DQ2030, CMD2710, CTL3215, NC, CLK2030, NC, DQ2030, CMD2710, |
| 770 | DQ2030, CMD2710, CTL3215, NC, CLK2030, NC, NC, NC, |
| 771 | |
| 772 | NC, NC, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 773 | NC, NC, CTL3215, NC, CLK2030, NC, DQ2030, CMD3210, |
| 774 | NC, NC, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 775 | NC, NC, CTL3215, NC, CLK2030, CLK2030, DQ2030, CMD2710 |
| 776 | }; |
| 777 | |
| 778 | static const u8 single_channel_slew_group_lookup[] = { |
| 779 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 780 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 781 | DQ2330, CMD3210, NC, CTL3215, NC, CLK2030, DQ2330, CMD3210, |
| 782 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 783 | DQ2330, CMD3210, NC, CTL3215, NC, CLK2030, NC, NC, |
| 784 | |
| 785 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 786 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, DQ2330, CMD3210, |
| 787 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 788 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, DQ2330, CMD3210, |
| 789 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, NC, NC, |
| 790 | |
| 791 | DQ2330, CMD3210, NC, CTL3215, NC, CLK2030, DQ2330, CMD3210, |
| 792 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 793 | DQ2330, CMD3210, NC, CTL3215, NC, CLK2030, DQ2330, CMD3210, |
| 794 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 795 | DQ2330, CMD3210, NC, CTL3215, NC, CLK2030, NC, NC, |
| 796 | |
| 797 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 798 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, DQ2330, CMD3210, |
| 799 | DQ2330, CMD3210, CTL3215, CTL3215, CLK2030, CLK2030, DQ2330, CMD3210, |
| 800 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, DQ2330, CMD3210, |
| 801 | DQ2330, CMD3210, CTL3215, NC, CLK2030, NC, NC, NC, |
| 802 | |
| 803 | DQ2330, NC, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 804 | DQ2330, NC, CTL3215, NC, CLK2030, NC, DQ2030, CMD3210, |
| 805 | DQ2330, NC, NC, CTL3215, NC, CLK2030, DQ2030, CMD3210, |
| 806 | DQ2330, NC, CTL3215, NC, CLK2030, CLK2030, DQ2030, CMD3210 |
| 807 | }; |
| 808 | |
| 809 | static const u32 *slew_group_lookup(int dual_channel, int index) |
| 810 | { |
| 811 | const u8 *slew_group; |
| 812 | /* Dual Channel needs different tables. */ |
| 813 | if (dual_channel) |
| 814 | slew_group = dual_channel_slew_group_lookup; |
| 815 | else |
| 816 | slew_group = single_channel_slew_group_lookup; |
| 817 | |
| 818 | switch (slew_group[index]) { |
| 819 | case DQ2030: return dq2030; |
| 820 | case DQ2330: return dq2330; |
| 821 | case CMD2710: return cmd2710; |
| 822 | case CMD3210: return cmd3210; |
| 823 | case CLK2030: return clk2030; |
| 824 | case CTL3215: return ctl3215; |
| 825 | case CTL3220: return ctl3220; |
| 826 | case NC: return nc; |
| 827 | } |
| 828 | |
| 829 | return nc; |
| 830 | } |
| 831 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 832 | #if CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 833 | /* Strength multiplier tables */ |
| 834 | static const u8 dual_channel_strength_multiplier[] = { |
| 835 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 836 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 837 | 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11, |
| 838 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22, |
| 839 | 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00, |
| 840 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 841 | 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11, |
| 842 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 843 | 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22, |
| 844 | 0x44, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00, |
| 845 | 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11, |
| 846 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 847 | 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11, |
| 848 | 0x44, 0x11, 0x11, 0x11, 0x44, 0x44, 0x44, 0x22, |
| 849 | 0x44, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00, |
| 850 | 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 851 | 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11, |
| 852 | 0x44, 0x22, 0x11, 0x11, 0x44, 0x44, 0x44, 0x11, |
| 853 | 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x44, 0x22, |
| 854 | 0x44, 0x22, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00, |
| 855 | 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11, |
| 856 | 0x00, 0x00, 0x11, 0x00, 0x44, 0x00, 0x44, 0x11, |
| 857 | 0x00, 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x11, |
| 858 | 0x00, 0x00, 0x11, 0x00, 0x44, 0x44, 0x44, 0x22 |
| 859 | }; |
| 860 | |
| 861 | static const u8 single_channel_strength_multiplier[] = { |
| 862 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 863 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 864 | 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11, |
| 865 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 866 | 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00, |
| 867 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 868 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11, |
| 869 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 870 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11, |
| 871 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00, |
| 872 | 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11, |
| 873 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 874 | 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11, |
| 875 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 876 | 0x33, 0x11, 0x00, 0x11, 0x00, 0x44, 0x00, 0x00, |
| 877 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 878 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11, |
| 879 | 0x33, 0x11, 0x11, 0x11, 0x44, 0x44, 0x33, 0x11, |
| 880 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11, |
| 881 | 0x33, 0x11, 0x11, 0x00, 0x44, 0x00, 0x00, 0x00, |
| 882 | 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11, |
| 883 | 0x33, 0x00, 0x11, 0x00, 0x44, 0x00, 0x33, 0x11, |
| 884 | 0x33, 0x00, 0x00, 0x11, 0x00, 0x44, 0x33, 0x11, |
| 885 | 0x33, 0x00, 0x11, 0x00, 0x44, 0x44, 0x33, 0x11 |
| 886 | }; |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 887 | #elif CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 888 | static const u8 dual_channel_strength_multiplier[] = { |
| 889 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 890 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 891 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 892 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x33, |
| 893 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 894 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 895 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 896 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 897 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x33, |
| 898 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 899 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 900 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 901 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 902 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x33, |
| 903 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 904 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 905 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 906 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 907 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x33, |
| 908 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 909 | 0x44, 0x00, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 910 | 0x44, 0x00, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 911 | 0x44, 0x00, 0x00, 0x00, 0x44, 0x44, 0x44, 0x22, |
| 912 | 0x44, 0x00, 0x00, 0x00, 0x44, 0x44, 0x44, 0x33 |
| 913 | }; |
| 914 | |
| 915 | static const u8 single_channel_strength_multiplier[] = { |
| 916 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 917 | 0x44, 0x44, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 918 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 919 | 0x44, 0x55, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 920 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 921 | 0x44, 0x44, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 922 | 0x44, 0x55, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 923 | 0x44, 0x44, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 924 | 0x44, 0x88, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 925 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 926 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 927 | 0x44, 0x44, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 928 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 929 | 0x44, 0x55, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 930 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 931 | 0x44, 0x55, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 932 | 0x44, 0x88, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 933 | 0x44, 0x55, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 934 | 0x44, 0x88, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 935 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 936 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 937 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 938 | 0x44, 0x22, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00, |
| 939 | 0x44, 0x33, 0x00, 0x00, 0x44, 0x44, 0x44, 0x00 |
| 940 | }; |
| 941 | #endif |
| 942 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 943 | static void sdram_rcomp_buffer_strength_and_slew(struct sys_info *sysinfo) |
| 944 | { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 945 | const u8 *strength_multiplier; |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 946 | int idx, dual_channel; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 947 | |
| 948 | /* Set Strength Multipliers */ |
| 949 | |
| 950 | /* Dual Channel needs different tables. */ |
| 951 | if (sdram_capabilities_dual_channel()) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 952 | printk(BIOS_DEBUG, "Programming Dual Channel RCOMP\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 953 | strength_multiplier = dual_channel_strength_multiplier; |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 954 | dual_channel = 1; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 955 | idx = 5 * sysinfo->dimm[0] + sysinfo->dimm[2]; |
| 956 | } else { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 957 | printk(BIOS_DEBUG, "Programming Single Channel RCOMP\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 958 | strength_multiplier = single_channel_strength_multiplier; |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 959 | dual_channel = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 960 | idx = 5 * sysinfo->dimm[0] + sysinfo->dimm[1]; |
| 961 | } |
| 962 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 963 | printk(BIOS_DEBUG, "Table Index: %d\n", idx); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 964 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 965 | MCHBAR8(G1SC) = strength_multiplier[idx * 8 + 0]; |
| 966 | MCHBAR8(G2SC) = strength_multiplier[idx * 8 + 1]; |
| 967 | MCHBAR8(G3SC) = strength_multiplier[idx * 8 + 2]; |
| 968 | MCHBAR8(G4SC) = strength_multiplier[idx * 8 + 3]; |
| 969 | MCHBAR8(G5SC) = strength_multiplier[idx * 8 + 4]; |
| 970 | MCHBAR8(G6SC) = strength_multiplier[idx * 8 + 5]; |
| 971 | MCHBAR8(G7SC) = strength_multiplier[idx * 8 + 6]; |
| 972 | MCHBAR8(G8SC) = strength_multiplier[idx * 8 + 7]; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 973 | |
| 974 | /* Channel 0 */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 975 | sdram_write_slew_rates(G1SRPUT, slew_group_lookup(dual_channel, idx * 8 + 0)); |
| 976 | sdram_write_slew_rates(G2SRPUT, slew_group_lookup(dual_channel, idx * 8 + 1)); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 977 | if ((slew_group_lookup(dual_channel, idx * 8 + 2) != nc) && (sysinfo->package == SYSINFO_PACKAGE_STACKED)) |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 978 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 979 | sdram_write_slew_rates(G3SRPUT, ctl3220); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 980 | else |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 981 | sdram_write_slew_rates(G3SRPUT, slew_group_lookup(dual_channel, idx * 8 + 2)); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 982 | |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 983 | sdram_write_slew_rates(G4SRPUT, slew_group_lookup(dual_channel, idx * 8 + 3)); |
| 984 | sdram_write_slew_rates(G5SRPUT, slew_group_lookup(dual_channel, idx * 8 + 4)); |
| 985 | sdram_write_slew_rates(G6SRPUT, slew_group_lookup(dual_channel, idx * 8 + 5)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 986 | |
| 987 | /* Channel 1 */ |
| 988 | if (sysinfo->dual_channel) { |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 989 | sdram_write_slew_rates(G7SRPUT, slew_group_lookup(dual_channel, idx * 8 + 6)); |
| 990 | sdram_write_slew_rates(G8SRPUT, slew_group_lookup(dual_channel, idx * 8 + 7)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 991 | } else { |
| 992 | sdram_write_slew_rates(G7SRPUT, nc); |
| 993 | sdram_write_slew_rates(G8SRPUT, nc); |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | static void sdram_enable_rcomp(void) |
| 998 | { |
| 999 | u32 reg32; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1000 | /* Enable Global Periodic RCOMP */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1001 | udelay(300); |
| 1002 | reg32 = MCHBAR32(GBRCOMPCTL); |
| 1003 | reg32 &= ~(1 << 23); |
| 1004 | MCHBAR32(GBRCOMPCTL) = reg32; |
| 1005 | } |
| 1006 | |
| 1007 | static void sdram_program_dll_timings(struct sys_info *sysinfo) |
| 1008 | { |
Elyes HAOUAS | 44a3066 | 2017-02-23 13:14:44 +0100 | [diff] [blame] | 1009 | u32 channeldll = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1010 | int i; |
| 1011 | |
Elyes HAOUAS | 3842498 | 2016-08-21 12:01:04 +0200 | [diff] [blame] | 1012 | printk(BIOS_DEBUG, "Programming DLL Timings...\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1013 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1014 | MCHBAR16(DQSMT) &= ~((3 << 12) | (1 << 10) | (0xf << 0)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1015 | MCHBAR16(DQSMT) |= (1 << 13) | (0xc << 0); |
| 1016 | |
| 1017 | /* We drive both channels with the same speed */ |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1018 | if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM)) { |
Elyes HAOUAS | 39bfc6c | 2016-10-31 10:49:33 +0100 | [diff] [blame] | 1019 | switch (sysinfo->memory_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1020 | case 400: |
| 1021 | channeldll = 0x26262626; break; |
| 1022 | case 533: |
| 1023 | channeldll = 0x22222222; break; |
| 1024 | case 667: |
| 1025 | channeldll = 0x11111111; break; |
Elyes HAOUAS | 39bfc6c | 2016-10-31 10:49:33 +0100 | [diff] [blame] | 1026 | } |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1027 | } else if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC)) { |
Elyes HAOUAS | 39bfc6c | 2016-10-31 10:49:33 +0100 | [diff] [blame] | 1028 | switch (sysinfo->memory_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1029 | case 400: |
| 1030 | channeldll = 0x33333333; break; |
| 1031 | case 533: |
| 1032 | channeldll = 0x24242424; break; |
| 1033 | case 667: |
| 1034 | channeldll = 0x25252525; break; |
Elyes HAOUAS | 39bfc6c | 2016-10-31 10:49:33 +0100 | [diff] [blame] | 1035 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1036 | } |
| 1037 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1038 | for (i = 0; i < 4; i++) { |
Elyes HAOUAS | 44a3066 | 2017-02-23 13:14:44 +0100 | [diff] [blame] | 1039 | MCHBAR32(C0R0B00DQST + (i * 0x10) + 0) = channeldll; |
| 1040 | MCHBAR32(C0R0B00DQST + (i * 0x10) + 4) = channeldll; |
| 1041 | MCHBAR32(C1R0B00DQST + (i * 0x10) + 0) = channeldll; |
| 1042 | MCHBAR32(C1R0B00DQST + (i * 0x10) + 4) = channeldll; |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1043 | if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC)) { |
Elyes HAOUAS | 44a3066 | 2017-02-23 13:14:44 +0100 | [diff] [blame] | 1044 | MCHBAR8(C0R0B00DQST + (i * 0x10) + 8) = channeldll & 0xff; |
| 1045 | MCHBAR8(C1R0B00DQST + (i * 0x10) + 8) = channeldll & 0xff; |
Paul Menzel | bce7e33 | 2017-02-22 18:46:27 +0100 | [diff] [blame] | 1046 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | static void sdram_force_rcomp(void) |
| 1051 | { |
| 1052 | u32 reg32; |
| 1053 | u8 reg8; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1054 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1055 | reg32 = MCHBAR32(ODTC); |
| 1056 | reg32 |= (1 << 28); |
| 1057 | MCHBAR32(ODTC) = reg32; |
| 1058 | |
| 1059 | reg32 = MCHBAR32(SMSRCTL); |
| 1060 | reg32 |= (1 << 0); |
| 1061 | MCHBAR32(SMSRCTL) = reg32; |
| 1062 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1063 | /* Start initial RCOMP */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1064 | reg32 = MCHBAR32(GBRCOMPCTL); |
| 1065 | reg32 |= (1 << 8); |
| 1066 | MCHBAR32(GBRCOMPCTL) = reg32; |
| 1067 | |
| 1068 | reg8 = i945_silicon_revision(); |
| 1069 | if ((reg8 == 0 && (MCHBAR32(DCC) & (3 << 0)) == 0) || (reg8 == 1)) { |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1070 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1071 | reg32 = MCHBAR32(GBRCOMPCTL); |
| 1072 | reg32 |= (3 << 5); |
| 1073 | MCHBAR32(GBRCOMPCTL) = reg32; |
| 1074 | } |
| 1075 | } |
| 1076 | |
| 1077 | static void sdram_initialize_system_memory_io(struct sys_info *sysinfo) |
| 1078 | { |
| 1079 | u8 reg8; |
| 1080 | u32 reg32; |
| 1081 | |
Elyes HAOUAS | 3842498 | 2016-08-21 12:01:04 +0200 | [diff] [blame] | 1082 | printk(BIOS_DEBUG, "Initializing System Memory IO...\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1083 | /* Enable Data Half Clock Pushout */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1084 | reg8 = MCHBAR8(C0HCTC); |
| 1085 | reg8 &= ~0x1f; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1086 | reg8 |= (1 << 0); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1087 | MCHBAR8(C0HCTC) = reg8; |
| 1088 | |
| 1089 | reg8 = MCHBAR8(C1HCTC); |
| 1090 | reg8 &= ~0x1f; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1091 | reg8 |= (1 << 0); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1092 | MCHBAR8(C1HCTC) = reg8; |
| 1093 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1094 | MCHBAR16(WDLLBYPMODE) &= ~((1 << 9) | (1 << 6) | (1 << 4) | (1 << 3) | (1 << 1)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1095 | MCHBAR16(WDLLBYPMODE) |= (1 << 8) | (1 << 7) | (1 << 5) | (1 << 2) | (1 << 0); |
| 1096 | |
| 1097 | MCHBAR8(C0WDLLCMC) = 0; |
| 1098 | MCHBAR8(C1WDLLCMC) = 0; |
| 1099 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1100 | /* Program RCOMP Settings */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1101 | sdram_program_dram_width(sysinfo); |
| 1102 | |
| 1103 | sdram_rcomp_buffer_strength_and_slew(sysinfo); |
| 1104 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1105 | /* Indicate that RCOMP programming is done */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1106 | reg32 = MCHBAR32(GBRCOMPCTL); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1107 | reg32 &= ~((1 << 29) | (1 << 26) | (3 << 21) | (3 << 2)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1108 | reg32 |= (3 << 27) | (3 << 0); |
| 1109 | MCHBAR32(GBRCOMPCTL) = reg32; |
| 1110 | |
| 1111 | MCHBAR32(GBRCOMPCTL) |= (1 << 10); |
| 1112 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1113 | /* Program DLL Timings */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1114 | sdram_program_dll_timings(sysinfo); |
| 1115 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1116 | /* Force RCOMP cycle */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1117 | sdram_force_rcomp(); |
| 1118 | } |
| 1119 | |
| 1120 | static void sdram_enable_system_memory_io(struct sys_info *sysinfo) |
| 1121 | { |
| 1122 | u32 reg32; |
| 1123 | |
Elyes HAOUAS | 3842498 | 2016-08-21 12:01:04 +0200 | [diff] [blame] | 1124 | printk(BIOS_DEBUG, "Enabling System Memory IO...\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1125 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1126 | reg32 = MCHBAR32(RCVENMT); |
| 1127 | reg32 &= ~(0x3f << 6); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1128 | MCHBAR32(RCVENMT) = reg32; /* [11:6] = 0 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1129 | |
| 1130 | reg32 |= (1 << 11) | (1 << 9); |
| 1131 | MCHBAR32(RCVENMT) = reg32; |
| 1132 | |
| 1133 | reg32 = MCHBAR32(DRTST); |
| 1134 | reg32 |= (1 << 3) | (1 << 2); |
| 1135 | MCHBAR32(DRTST) = reg32; |
| 1136 | |
| 1137 | reg32 = MCHBAR32(DRTST); |
| 1138 | reg32 |= (1 << 6) | (1 << 4); |
| 1139 | MCHBAR32(DRTST) = reg32; |
| 1140 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1141 | asm volatile ("nop; nop;" ::: "memory"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1142 | |
| 1143 | reg32 = MCHBAR32(DRTST); |
| 1144 | |
| 1145 | /* Is channel 0 populated? */ |
| 1146 | if (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED || |
| 1147 | sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED) |
| 1148 | reg32 |= (1 << 7) | (1 << 5); |
| 1149 | else |
| 1150 | reg32 |= (1 << 31); |
| 1151 | |
| 1152 | /* Is channel 1 populated? */ |
| 1153 | if (sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED || |
| 1154 | sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED) |
| 1155 | reg32 |= (1 << 9) | (1 << 8); |
| 1156 | else |
| 1157 | reg32 |= (1 << 30); |
| 1158 | |
| 1159 | MCHBAR32(DRTST) = reg32; |
| 1160 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1161 | /* Activate DRAM Channel IO Buffers */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1162 | if (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED || |
| 1163 | sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED) { |
| 1164 | reg32 = MCHBAR32(C0DRC1); |
| 1165 | reg32 |= (1 << 8); |
| 1166 | MCHBAR32(C0DRC1) = reg32; |
| 1167 | } |
| 1168 | if (sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED || |
| 1169 | sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED) { |
| 1170 | reg32 = MCHBAR32(C1DRC1); |
| 1171 | reg32 |= (1 << 8); |
| 1172 | MCHBAR32(C1DRC1) = reg32; |
| 1173 | } |
| 1174 | } |
| 1175 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1176 | static int sdram_program_row_boundaries(struct sys_info *sysinfo) |
| 1177 | { |
| 1178 | int i; |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 1179 | int cum0, cum1, tolud, tom, pci_mmio_size; |
| 1180 | const struct device *dev; |
| 1181 | const struct northbridge_intel_i945_config *cfg = NULL; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1182 | |
Paul Menzel | 84283bc | 2014-07-17 08:16:04 +0200 | [diff] [blame] | 1183 | printk(BIOS_DEBUG, "Setting RAM size...\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1184 | |
| 1185 | cum0 = 0; |
Elyes HAOUAS | 12df950 | 2016-08-23 21:29:48 +0200 | [diff] [blame] | 1186 | for (i = 0; i < 2 * DIMM_SOCKETS; i++) { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1187 | cum0 += sysinfo->banksize[i]; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1188 | MCHBAR8(C0DRB0+i) = cum0; |
| 1189 | } |
| 1190 | |
| 1191 | /* Assume we continue in Channel 1 where we stopped in Channel 0 */ |
| 1192 | cum1 = cum0; |
| 1193 | |
| 1194 | /* Exception: Interleaved starts from the beginning */ |
| 1195 | if (sysinfo->interleaved) |
| 1196 | cum1 = 0; |
| 1197 | |
Elyes HAOUAS | 12df950 | 2016-08-23 21:29:48 +0200 | [diff] [blame] | 1198 | for (i = 0; i < 2 * DIMM_SOCKETS; i++) { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1199 | cum1 += sysinfo->banksize[i + 4]; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1200 | MCHBAR8(C1DRB0+i) = cum1; |
| 1201 | } |
| 1202 | |
| 1203 | /* Set TOLUD Top Of Low Usable DRAM */ |
| 1204 | if (sysinfo->interleaved) |
| 1205 | tolud = (cum0 + cum1) << 1; |
| 1206 | else |
| 1207 | tolud = (cum1 ? cum1 : cum0) << 1; |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 1208 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1209 | /* The TOM register has a different format */ |
| 1210 | tom = tolud >> 3; |
| 1211 | |
| 1212 | /* Limit the value of TOLUD to leave some space for PCI memory. */ |
Kyösti Mälkki | c70eed1 | 2018-05-22 02:18:00 +0300 | [diff] [blame] | 1213 | dev = pcidev_on_root(0, 0); |
Arthur Heymans | 885c289 | 2016-10-03 17:16:48 +0200 | [diff] [blame] | 1214 | if (dev) |
| 1215 | cfg = dev->chip_info; |
| 1216 | |
| 1217 | /* Don't use pci mmio sizes smaller than 768M */ |
| 1218 | if (!cfg || cfg->pci_mmio_size <= DEFAULT_PCI_MMIO_SIZE) |
| 1219 | pci_mmio_size = DEFAULT_PCI_MMIO_SIZE; |
| 1220 | else |
| 1221 | pci_mmio_size = cfg->pci_mmio_size; |
| 1222 | |
| 1223 | tolud = MIN(((4096 - pci_mmio_size) / 128) << 3, tolud); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1224 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1225 | pci_write_config8(PCI_DEV(0, 0, 0), TOLUD, tolud); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1226 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1227 | printk(BIOS_DEBUG, "C0DRB = 0x%08x\n", MCHBAR32(C0DRB0)); |
| 1228 | printk(BIOS_DEBUG, "C1DRB = 0x%08x\n", MCHBAR32(C1DRB0)); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1229 | printk(BIOS_DEBUG, "TOLUD = 0x%04x\n", pci_read_config8(PCI_DEV(0, 0, 0), TOLUD)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1230 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1231 | pci_write_config16(PCI_DEV(0, 0, 0), TOM, tom); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1232 | |
| 1233 | return 0; |
| 1234 | } |
| 1235 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1236 | static int sdram_set_row_attributes(struct sys_info *sysinfo) |
| 1237 | { |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 1238 | int i; |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1239 | u16 dra0 = 0, dra1 = 0, dra = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1240 | |
Elyes HAOUAS | 3842498 | 2016-08-21 12:01:04 +0200 | [diff] [blame] | 1241 | printk(BIOS_DEBUG, "Setting row attributes...\n"); |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1242 | for (i = 0; i < 2 * DIMM_SOCKETS; i++) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1243 | u8 columnsrows; |
| 1244 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1245 | if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1246 | continue; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1247 | |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 1248 | columnsrows = (sysinfo->rows[i] & 0x0f) |
| 1249 | | (sysinfo->cols[i] & 0xf) << 4; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1250 | |
| 1251 | switch (columnsrows) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1252 | case 0x9d: |
| 1253 | dra = 2; break; |
| 1254 | case 0xad: |
| 1255 | dra = 3; break; |
| 1256 | case 0xbd: |
| 1257 | dra = 4; break; |
| 1258 | case 0xae: |
| 1259 | dra = 3; break; |
| 1260 | case 0xbe: |
| 1261 | dra = 4; break; |
| 1262 | default: |
| 1263 | die("Unsupported Rows/Columns. (DRA)"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1264 | } |
| 1265 | |
| 1266 | /* Double Sided DIMMs? */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1267 | if (sysinfo->banksize[(2 * i) + 1] != 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1268 | dra = (dra << 4) | dra; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1269 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1270 | if (i < DIMM_SOCKETS) |
| 1271 | dra0 |= (dra << (i*8)); |
| 1272 | else |
| 1273 | dra1 |= (dra << ((i - DIMM_SOCKETS)*8)); |
| 1274 | } |
| 1275 | |
| 1276 | MCHBAR16(C0DRA0) = dra0; |
| 1277 | MCHBAR16(C1DRA0) = dra1; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1278 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1279 | printk(BIOS_DEBUG, "C0DRA = 0x%04x\n", dra0); |
| 1280 | printk(BIOS_DEBUG, "C1DRA = 0x%04x\n", dra1); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1281 | |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
| 1285 | static void sdram_set_bank_architecture(struct sys_info *sysinfo) |
| 1286 | { |
| 1287 | u32 off32; |
| 1288 | int i; |
| 1289 | |
| 1290 | MCHBAR16(C1BNKARC) &= 0xff00; |
| 1291 | MCHBAR16(C0BNKARC) &= 0xff00; |
| 1292 | |
| 1293 | off32 = C0BNKARC; |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1294 | for (i = 0; i < 2 * DIMM_SOCKETS; i++) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1295 | /* Switch to second channel */ |
| 1296 | if (i == DIMM_SOCKETS) |
| 1297 | off32 = C1BNKARC; |
| 1298 | |
| 1299 | if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) |
| 1300 | continue; |
| 1301 | |
| 1302 | if (sysinfo->banks[i] != 8) |
| 1303 | continue; |
| 1304 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1305 | printk(BIOS_SPEW, "DIMM%d has 8 banks.\n", i); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1306 | |
| 1307 | if (i & 1) |
| 1308 | MCHBAR16(off32) |= 0x50; |
| 1309 | else |
| 1310 | MCHBAR16(off32) |= 0x05; |
| 1311 | } |
| 1312 | } |
| 1313 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1314 | static void sdram_program_refresh_rate(struct sys_info *sysinfo) |
| 1315 | { |
| 1316 | u32 reg32; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1317 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1318 | if (sysinfo->refresh == REFRESH_7_8US) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1319 | reg32 = (2 << 8); /* Refresh enabled at 7.8us */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1320 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1321 | reg32 = (1 << 8); /* Refresh enabled at 15.6us */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1322 | |
| 1323 | MCHBAR32(C0DRC0) &= ~(7 << 8); |
| 1324 | MCHBAR32(C0DRC0) |= reg32; |
| 1325 | |
| 1326 | MCHBAR32(C1DRC0) &= ~(7 << 8); |
| 1327 | MCHBAR32(C1DRC0) |= reg32; |
| 1328 | } |
| 1329 | |
| 1330 | static void sdram_program_cke_tristate(struct sys_info *sysinfo) |
| 1331 | { |
| 1332 | u32 reg32; |
| 1333 | int i; |
| 1334 | |
| 1335 | reg32 = MCHBAR32(C0DRC1); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1336 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1337 | for (i = 0; i < 4; i++) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1338 | if (sysinfo->banksize[i] == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1339 | reg32 |= (1 << (16 + i)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1340 | } |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1341 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1342 | reg32 |= (1 << 12); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1343 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1344 | reg32 |= (1 << 11); |
| 1345 | MCHBAR32(C0DRC1) = reg32; |
| 1346 | |
| 1347 | /* Do we have to do this if we're in Single Channel Mode? */ |
| 1348 | reg32 = MCHBAR32(C1DRC1); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1349 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1350 | for (i = 4; i < 8; i++) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1351 | if (sysinfo->banksize[i] == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1352 | reg32 |= (1 << (12 + i)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1353 | } |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1354 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1355 | reg32 |= (1 << 12); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1356 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1357 | reg32 |= (1 << 11); |
| 1358 | MCHBAR32(C1DRC1) = reg32; |
| 1359 | } |
| 1360 | |
| 1361 | static void sdram_program_odt_tristate(struct sys_info *sysinfo) |
| 1362 | { |
| 1363 | u32 reg32; |
| 1364 | int i; |
| 1365 | |
| 1366 | reg32 = MCHBAR32(C0DRC2); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1367 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1368 | for (i = 0; i < 4; i++) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1369 | if (sysinfo->banksize[i] == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1370 | reg32 |= (1 << (24 + i)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1371 | } |
| 1372 | MCHBAR32(C0DRC2) = reg32; |
| 1373 | |
| 1374 | reg32 = MCHBAR32(C1DRC2); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1375 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1376 | for (i = 4; i < 8; i++) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1377 | if (sysinfo->banksize[i] == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1378 | reg32 |= (1 << (20 + i)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1379 | } |
| 1380 | MCHBAR32(C1DRC2) = reg32; |
| 1381 | } |
| 1382 | |
| 1383 | static void sdram_set_timing_and_control(struct sys_info *sysinfo) |
| 1384 | { |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1385 | u32 reg32, tRD_min; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1386 | u32 tWTR; |
| 1387 | u32 temp_drt; |
| 1388 | int i, page_size; |
| 1389 | |
Edward O'Callaghan | 2f237c1 | 2014-05-25 06:24:39 +1000 | [diff] [blame] | 1390 | static const u8 cas_table[] = { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1391 | 2, 1, 0, 3 |
| 1392 | }; |
| 1393 | |
| 1394 | reg32 = MCHBAR32(C0DRC0); |
| 1395 | reg32 |= (1 << 2); /* Burst Length 8 */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1396 | reg32 &= ~((1 << 13) | (1 << 12)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1397 | MCHBAR32(C0DRC0) = reg32; |
| 1398 | |
| 1399 | reg32 = MCHBAR32(C1DRC0); |
| 1400 | reg32 |= (1 << 2); /* Burst Length 8 */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1401 | reg32 &= ~((1 << 13) | (1 << 12)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1402 | MCHBAR32(C1DRC0) = reg32; |
| 1403 | |
| 1404 | if (!sysinfo->dual_channel && sysinfo->dimm[1] != |
| 1405 | SYSINFO_DIMM_NOT_POPULATED) { |
| 1406 | reg32 = MCHBAR32(C0DRC0); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1407 | reg32 |= (1 << 15); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1408 | MCHBAR32(C0DRC0) = reg32; |
| 1409 | } |
| 1410 | |
| 1411 | sdram_program_refresh_rate(sysinfo); |
| 1412 | |
| 1413 | sdram_program_cke_tristate(sysinfo); |
| 1414 | |
| 1415 | sdram_program_odt_tristate(sysinfo); |
| 1416 | |
| 1417 | /* Calculate DRT0 */ |
| 1418 | |
| 1419 | temp_drt = 0; |
| 1420 | |
| 1421 | /* B2B Write Precharge (same bank) = CL-1 + BL/2 + tWR */ |
| 1422 | reg32 = (sysinfo->cas - 1) + (BURSTLENGTH / 2) + sysinfo->twr; |
| 1423 | temp_drt |= (reg32 << 28); |
| 1424 | |
| 1425 | /* Write Auto Precharge (same bank) = CL-1 + BL/2 + tWR + tRP */ |
| 1426 | reg32 += sysinfo->trp; |
| 1427 | temp_drt |= (reg32 << 4); |
| 1428 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1429 | if (sysinfo->memory_frequency == 667) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1430 | tWTR = 3; /* 667MHz */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1431 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1432 | tWTR = 2; /* 400 and 533 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1433 | |
| 1434 | /* B2B Write to Read Command Spacing */ |
| 1435 | reg32 = (sysinfo->cas - 1) + (BURSTLENGTH / 2) + tWTR; |
| 1436 | temp_drt |= (reg32 << 24); |
| 1437 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1438 | /* CxDRT0 [23:22], [21:20], [19:18] [16] have fixed values */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1439 | temp_drt |= ((1 << 22) | (3 << 20) | (1 << 18) | (0 << 16)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1440 | |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1441 | /* |
| 1442 | * tRD is the delay the memory controller is waiting on the FSB, |
| 1443 | * in mclk domain. |
| 1444 | * This parameter is important for stability and performance. |
| 1445 | * Those values might not be optimal but seem stable. |
| 1446 | */ |
| 1447 | tRD_min = sysinfo->cas; |
Arthur Heymans | e189761 | 2016-10-15 23:29:18 +0200 | [diff] [blame] | 1448 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1449 | case 533: break; |
| 1450 | case 667: tRD_min += 1; |
Arthur Heymans | e189761 | 2016-10-15 23:29:18 +0200 | [diff] [blame] | 1451 | break; |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1452 | case 800: tRD_min += 2; |
Arthur Heymans | e189761 | 2016-10-15 23:29:18 +0200 | [diff] [blame] | 1453 | break; |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1454 | case 1066: tRD_min += 3; |
Arthur Heymans | e189761 | 2016-10-15 23:29:18 +0200 | [diff] [blame] | 1455 | break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1456 | } |
Arthur Heymans | e189761 | 2016-10-15 23:29:18 +0200 | [diff] [blame] | 1457 | |
Arthur Heymans | 2502723 | 2017-02-12 23:34:39 +0100 | [diff] [blame] | 1458 | temp_drt |= (tRD_min << 11); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1459 | |
| 1460 | /* Read Auto Precharge to Activate */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1461 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1462 | temp_drt |= (8 << 0); |
| 1463 | |
| 1464 | MCHBAR32(C0DRT0) = temp_drt; |
| 1465 | MCHBAR32(C1DRT0) = temp_drt; |
| 1466 | |
| 1467 | /* Calculate DRT1 */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1468 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1469 | temp_drt = MCHBAR32(C0DRT1) & 0x00020088; |
| 1470 | |
| 1471 | /* DRAM RASB Precharge */ |
| 1472 | temp_drt |= (sysinfo->trp - 2) << 0; |
| 1473 | |
| 1474 | /* DRAM RASB to CASB Delay */ |
| 1475 | temp_drt |= (sysinfo->trcd - 2) << 4; |
| 1476 | |
| 1477 | /* CASB Latency */ |
| 1478 | temp_drt |= (cas_table[sysinfo->cas - 3]) << 8; |
| 1479 | |
| 1480 | /* Refresh Cycle Time */ |
| 1481 | temp_drt |= (sysinfo->trfc) << 10; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1482 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1483 | /* Pre-All to Activate Delay */ |
| 1484 | temp_drt |= (0 << 16); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1485 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1486 | /* Precharge to Precharge Delay stays at 1 clock */ |
| 1487 | temp_drt |= (0 << 18); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1488 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1489 | /* Activate to Precharge Delay */ |
| 1490 | temp_drt |= (sysinfo->tras << 19); |
| 1491 | |
| 1492 | /* Read to Precharge (tRTP) */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1493 | if (sysinfo->memory_frequency == 667) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1494 | temp_drt |= (1 << 28); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1495 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1496 | temp_drt |= (0 << 28); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1497 | |
| 1498 | /* Determine page size */ |
| 1499 | reg32 = 0; |
| 1500 | page_size = 1; /* Default: 1k pagesize */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1501 | for (i = 0; i < 2*DIMM_SOCKETS; i++) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1502 | if (sysinfo->dimm[i] == SYSINFO_DIMM_X16DS || |
| 1503 | sysinfo->dimm[i] == SYSINFO_DIMM_X16SS) |
| 1504 | page_size = 2; /* 2k pagesize */ |
| 1505 | } |
| 1506 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1507 | if (sysinfo->memory_frequency == 533 && page_size == 2) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1508 | reg32 = 1; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1509 | if (sysinfo->memory_frequency == 667) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1510 | reg32 = page_size; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1511 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1512 | temp_drt |= (reg32 << 30); |
| 1513 | |
| 1514 | MCHBAR32(C0DRT1) = temp_drt; |
| 1515 | MCHBAR32(C1DRT1) = temp_drt; |
| 1516 | |
| 1517 | /* Program DRT2 */ |
| 1518 | reg32 = MCHBAR32(C0DRT2); |
| 1519 | reg32 &= ~(1 << 8); |
| 1520 | MCHBAR32(C0DRT2) = reg32; |
| 1521 | |
| 1522 | reg32 = MCHBAR32(C1DRT2); |
| 1523 | reg32 &= ~(1 << 8); |
| 1524 | MCHBAR32(C1DRT2) = reg32; |
| 1525 | |
| 1526 | /* Calculate DRT3 */ |
| 1527 | temp_drt = MCHBAR32(C0DRT3) & ~0x07ffffff; |
| 1528 | |
| 1529 | /* Get old tRFC value */ |
| 1530 | reg32 = MCHBAR32(C0DRT1) >> 10; |
| 1531 | reg32 &= 0x3f; |
| 1532 | |
| 1533 | /* 788nS - tRFC */ |
| 1534 | switch (sysinfo->memory_frequency) { |
| 1535 | case 400: /* 5nS */ |
| 1536 | reg32 = ((78800 / 500) - reg32) & 0x1ff; |
| 1537 | reg32 |= (0x8c << 16) | (0x0c << 10); /* 1 us */ |
| 1538 | break; |
| 1539 | case 533: /* 3.75nS */ |
| 1540 | reg32 = ((78800 / 375) - reg32) & 0x1ff; |
| 1541 | reg32 |= (0xba << 16) | (0x10 << 10); /* 1 us */ |
| 1542 | break; |
| 1543 | case 667: /* 3nS */ |
| 1544 | reg32 = ((78800 / 300) - reg32) & 0x1ff; |
| 1545 | reg32 |= (0xe9 << 16) | (0x14 << 10); /* 1 us */ |
| 1546 | break; |
| 1547 | } |
| 1548 | |
| 1549 | temp_drt |= reg32; |
| 1550 | |
| 1551 | MCHBAR32(C0DRT3) = temp_drt; |
| 1552 | MCHBAR32(C1DRT3) = temp_drt; |
| 1553 | } |
| 1554 | |
| 1555 | static void sdram_set_channel_mode(struct sys_info *sysinfo) |
| 1556 | { |
| 1557 | u32 reg32; |
| 1558 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1559 | printk(BIOS_DEBUG, "Setting mode of operation for memory channels..."); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1560 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1561 | if (sdram_capabilities_interleave() && |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1562 | ((sysinfo->banksize[0] + sysinfo->banksize[1] + |
| 1563 | sysinfo->banksize[2] + sysinfo->banksize[3]) == |
| 1564 | (sysinfo->banksize[4] + sysinfo->banksize[5] + |
| 1565 | sysinfo->banksize[6] + sysinfo->banksize[7]))) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1566 | /* Both channels equipped with DIMMs of the same size */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1567 | sysinfo->interleaved = 1; |
| 1568 | } else { |
| 1569 | sysinfo->interleaved = 0; |
| 1570 | } |
| 1571 | |
| 1572 | reg32 = MCHBAR32(DCC); |
| 1573 | reg32 &= ~(7 << 0); |
| 1574 | |
Elyes HAOUAS | 12df950 | 2016-08-23 21:29:48 +0200 | [diff] [blame] | 1575 | if (sysinfo->interleaved) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1576 | /* Dual Channel Interleaved */ |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1577 | printk(BIOS_DEBUG, "Dual Channel Interleaved.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1578 | reg32 |= (1 << 1); |
| 1579 | } else if (sysinfo->dimm[0] == SYSINFO_DIMM_NOT_POPULATED && |
| 1580 | sysinfo->dimm[1] == SYSINFO_DIMM_NOT_POPULATED) { |
| 1581 | /* Channel 1 only */ |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1582 | printk(BIOS_DEBUG, "Single Channel 1 only.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1583 | reg32 |= (1 << 2); |
Elyes HAOUAS | 75da1fb | 2017-02-16 18:59:13 +0100 | [diff] [blame] | 1584 | } else if (sdram_capabilities_dual_channel() && |
| 1585 | (sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED || |
| 1586 | sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED)) { |
Martin Roth | 128c104 | 2016-11-18 09:29:03 -0700 | [diff] [blame] | 1587 | /* Dual Channel Asymmetric */ |
| 1588 | printk(BIOS_DEBUG, "Dual Channel Asymmetric.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1589 | reg32 |= (1 << 0); |
| 1590 | } else { |
| 1591 | /* All bits 0 means Single Channel 0 operation */ |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1592 | printk(BIOS_DEBUG, "Single Channel 0 only.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1593 | } |
| 1594 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1595 | /* Now disable channel XORing */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1596 | reg32 |= (1 << 10); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1597 | |
| 1598 | MCHBAR32(DCC) = reg32; |
| 1599 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1600 | PRINTK_DEBUG("DCC = 0x%08x\n", MCHBAR32(DCC)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1601 | } |
| 1602 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1603 | static void sdram_program_pll_settings(struct sys_info *sysinfo) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1604 | { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1605 | MCHBAR32(PLLMON) = 0x80800000; |
| 1606 | |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1607 | sysinfo->fsb_frequency = fsbclk(); |
Peter Stuge | 76d9143 | 2010-10-01 10:02:33 +0000 | [diff] [blame] | 1608 | if (sysinfo->fsb_frequency == 0xffff) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1609 | die("Unsupported FSB speed"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1610 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1611 | /* Program CPCTL according to FSB speed */ |
| 1612 | /* Only write the lower byte */ |
| 1613 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1614 | case 400: |
| 1615 | MCHBAR8(CPCTL) = 0x90; break; /* FSB400 */ |
| 1616 | case 533: |
| 1617 | MCHBAR8(CPCTL) = 0x95; break; /* FSB533 */ |
| 1618 | case 667: |
| 1619 | MCHBAR8(CPCTL) = 0x8d; break; /* FSB667 */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1620 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1621 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1622 | MCHBAR16(CPCTL) &= ~(1 << 11); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1623 | |
Paul Menzel | 0ce5ebf | 2013-10-21 21:22:09 +0200 | [diff] [blame] | 1624 | MCHBAR16(CPCTL); /* Read back register to activate settings */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1625 | } |
| 1626 | |
| 1627 | static void sdram_program_graphics_frequency(struct sys_info *sysinfo) |
| 1628 | { |
| 1629 | u8 reg8; |
| 1630 | u16 reg16; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1631 | u8 freq, second_vco, voltage; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1632 | |
| 1633 | #define CRCLK_166MHz 0x00 |
| 1634 | #define CRCLK_200MHz 0x01 |
| 1635 | #define CRCLK_250MHz 0x03 |
| 1636 | #define CRCLK_400MHz 0x05 |
| 1637 | |
| 1638 | #define CDCLK_200MHz 0x00 |
| 1639 | #define CDCLK_320MHz 0x40 |
| 1640 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1641 | #define VOLTAGE_1_05 0x00 |
| 1642 | #define VOLTAGE_1_50 0x01 |
| 1643 | |
Paul Menzel | daf9e50 | 2014-07-15 23:49:16 +0200 | [diff] [blame] | 1644 | printk(BIOS_DEBUG, "Setting Graphics Frequency...\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1645 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1646 | printk(BIOS_DEBUG, "FSB: %d MHz ", sysinfo->fsb_frequency); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1647 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1648 | voltage = VOLTAGE_1_05; |
| 1649 | if (MCHBAR32(DFT_STRAP1) & (1 << 20)) |
| 1650 | voltage = VOLTAGE_1_50; |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1651 | printk(BIOS_DEBUG, "Voltage: %s ", (voltage == VOLTAGE_1_05)?"1.05V":"1.5V"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1652 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1653 | /* Gate graphics hardware for frequency change */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1654 | reg8 = (1<<3) | (1<<1); /* disable crclk, gate cdclk */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1655 | pci_write_config8(PCI_DEV(0, 2, 0), GCFC + 1, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1656 | |
| 1657 | /* Get graphics frequency capabilities */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1658 | reg8 = sdram_capabilities_core_frequencies(); |
| 1659 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1660 | freq = CRCLK_250MHz; |
| 1661 | switch (reg8) { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1662 | case GFX_FREQUENCY_CAP_ALL: |
| 1663 | if (voltage == VOLTAGE_1_05) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1664 | freq = CRCLK_250MHz; |
| 1665 | else |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1666 | freq = CRCLK_400MHz; /* 1.5V requires 400MHz */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1667 | break; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1668 | case GFX_FREQUENCY_CAP_250MHZ: |
| 1669 | freq = CRCLK_250MHz; break; |
| 1670 | case GFX_FREQUENCY_CAP_200MHZ: |
| 1671 | freq = CRCLK_200MHz; break; |
| 1672 | case GFX_FREQUENCY_CAP_166MHZ: |
| 1673 | freq = CRCLK_166MHz; break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1674 | } |
| 1675 | |
| 1676 | if (freq != CRCLK_400MHz) { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1677 | /* What chipset are we? Force 166MHz for GMS */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1678 | reg8 = (pci_read_config8(PCI_DEV(0, 0x00, 0), 0xe7) & 0x70) >> 4; |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1679 | if (reg8 == 2) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1680 | freq = CRCLK_166MHz; |
| 1681 | } |
| 1682 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1683 | printk(BIOS_DEBUG, "Render: "); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1684 | switch (freq) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1685 | case CRCLK_166MHz: |
| 1686 | printk(BIOS_DEBUG, "166MHz"); break; |
| 1687 | case CRCLK_200MHz: |
| 1688 | printk(BIOS_DEBUG, "200MHz"); break; |
| 1689 | case CRCLK_250MHz: |
| 1690 | printk(BIOS_DEBUG, "250MHz"); break; |
| 1691 | case CRCLK_400MHz: |
| 1692 | printk(BIOS_DEBUG, "400MHz"); break; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1693 | } |
| 1694 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1695 | if (i945_silicon_revision() == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1696 | sysinfo->mvco4x = 1; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1697 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1698 | sysinfo->mvco4x = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1699 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1700 | second_vco = 0; |
| 1701 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1702 | if (voltage == VOLTAGE_1_50) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1703 | second_vco = 1; |
| 1704 | } else if ((i945_silicon_revision() > 0) && (freq == CRCLK_250MHz)) { |
| 1705 | u16 mem = sysinfo->memory_frequency; |
| 1706 | u16 fsb = sysinfo->fsb_frequency; |
| 1707 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1708 | if ((fsb == 667 && mem == 533) || |
| 1709 | (fsb == 533 && mem == 533) || |
| 1710 | (fsb == 533 && mem == 400)) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1711 | second_vco = 1; |
| 1712 | } |
| 1713 | |
| 1714 | if (fsb == 667 && mem == 533) |
| 1715 | sysinfo->mvco4x = 1; |
| 1716 | } |
| 1717 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1718 | if (second_vco) |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1719 | sysinfo->clkcfg_bit7 = 1; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1720 | else |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1721 | sysinfo->clkcfg_bit7 = 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1722 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1723 | /* Graphics Core Render Clock */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1724 | reg16 = pci_read_config16(PCI_DEV(0, 2, 0), GCFC); |
| 1725 | reg16 &= ~((7 << 0) | (1 << 13)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1726 | reg16 |= freq; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1727 | pci_write_config16(PCI_DEV(0, 2, 0), GCFC, reg16); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1728 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1729 | /* Graphics Core Display Clock */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1730 | reg8 = pci_read_config8(PCI_DEV(0, 2, 0), GCFC); |
| 1731 | reg8 &= ~((1<<7) | (7<<4)); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1732 | |
| 1733 | if (voltage == VOLTAGE_1_05) { |
| 1734 | reg8 |= CDCLK_200MHz; |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1735 | printk(BIOS_DEBUG, " Display: 200MHz\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1736 | } else { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1737 | reg8 |= CDCLK_320MHz; |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1738 | printk(BIOS_DEBUG, " Display: 320MHz\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1739 | } |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1740 | pci_write_config8(PCI_DEV(0, 2, 0), GCFC, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1741 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1742 | reg8 = pci_read_config8(PCI_DEV(0, 2, 0), GCFC + 1); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1743 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1744 | reg8 |= (1<<3) | (1<<1); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1745 | pci_write_config8(PCI_DEV(0, 2, 0), GCFC + 1, reg8); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1746 | |
| 1747 | reg8 |= 0x0f; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1748 | pci_write_config8(PCI_DEV(0, 2, 0), GCFC + 1, reg8); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1749 | |
| 1750 | /* Ungate core render and display clocks */ |
| 1751 | reg8 &= 0xf0; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1752 | pci_write_config8(PCI_DEV(0, 2, 0), GCFC + 1, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1753 | } |
| 1754 | |
| 1755 | static void sdram_program_memory_frequency(struct sys_info *sysinfo) |
| 1756 | { |
| 1757 | u32 clkcfg; |
| 1758 | u8 reg8; |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1759 | u8 offset = CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) ? 1 : 0; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1760 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1761 | printk(BIOS_DEBUG, "Setting Memory Frequency... "); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1762 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1763 | clkcfg = MCHBAR32(CLKCFG); |
| 1764 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1765 | printk(BIOS_DEBUG, "CLKCFG = 0x%08x, ", clkcfg); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1766 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1767 | clkcfg &= ~((1 << 12) | (1 << 7) | (7 << 4)); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1768 | |
| 1769 | if (sysinfo->mvco4x) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1770 | printk(BIOS_DEBUG, "MVCO 4x, "); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1771 | clkcfg &= ~(1 << 12); |
| 1772 | } |
| 1773 | |
| 1774 | if (sysinfo->clkcfg_bit7) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1775 | printk(BIOS_DEBUG, "second VCO, "); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1776 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1777 | clkcfg |= (1 << 7); |
| 1778 | } |
| 1779 | |
| 1780 | switch (sysinfo->memory_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1781 | case 400: |
| 1782 | clkcfg |= ((1 + offset) << 4); break; |
| 1783 | case 533: |
| 1784 | clkcfg |= ((2 + offset) << 4); break; |
| 1785 | case 667: |
| 1786 | clkcfg |= ((3 + offset) << 4); break; |
| 1787 | default: |
| 1788 | die("Target Memory Frequency Error"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1789 | } |
| 1790 | |
| 1791 | if (MCHBAR32(CLKCFG) == clkcfg) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1792 | printk(BIOS_DEBUG, "ok (unchanged)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1793 | return; |
| 1794 | } |
| 1795 | |
| 1796 | MCHBAR32(CLKCFG) = clkcfg; |
| 1797 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1798 | /* Make sure the following code is in the |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1799 | * cache before we execute it. |
| 1800 | */ |
| 1801 | goto cache_code; |
| 1802 | vco_update: |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 1803 | reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1804 | reg8 &= ~(1 << 7); |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 1805 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1806 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1807 | clkcfg &= ~(1 << 10); |
| 1808 | MCHBAR32(CLKCFG) = clkcfg; |
| 1809 | clkcfg |= (1 << 10); |
| 1810 | MCHBAR32(CLKCFG) = clkcfg; |
| 1811 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1812 | asm volatile ( |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1813 | " movl $0x100, %%ecx\n" |
| 1814 | "delay_update:\n" |
| 1815 | " nop\n" |
| 1816 | " nop\n" |
| 1817 | " nop\n" |
| 1818 | " nop\n" |
| 1819 | " loop delay_update\n" |
| 1820 | : /* No outputs */ |
| 1821 | : /* No inputs */ |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1822 | : "%ecx", "memory" |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1823 | ); |
| 1824 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1825 | clkcfg &= ~(1 << 10); |
| 1826 | MCHBAR32(CLKCFG) = clkcfg; |
| 1827 | |
| 1828 | goto out; |
| 1829 | cache_code: |
| 1830 | goto vco_update; |
| 1831 | out: |
| 1832 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 1833 | printk(BIOS_DEBUG, "CLKCFG = 0x%08x, ", MCHBAR32(CLKCFG)); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1834 | printk(BIOS_DEBUG, "ok\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1835 | } |
| 1836 | |
| 1837 | static void sdram_program_clock_crossing(void) |
| 1838 | { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1839 | int idx = 0; |
| 1840 | |
| 1841 | /** |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1842 | * We add the indices according to our clocks from CLKCFG. |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1843 | */ |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1844 | #if CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1845 | static const u32 data_clock_crossing[] = { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1846 | 0x00100401, 0x00000000, /* DDR400 FSB400 */ |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1847 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1848 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1849 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1850 | 0x08040120, 0x00000000, /* DDR400 FSB533 */ |
| 1851 | 0x00100401, 0x00000000, /* DDR533 FSB533 */ |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 1852 | 0x00010402, 0x00000000, /* DDR667 FSB533 - fake values */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1853 | |
| 1854 | 0x04020120, 0x00000010, /* DDR400 FSB667 */ |
| 1855 | 0x10040280, 0x00000040, /* DDR533 FSB667 */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1856 | 0x00100401, 0x00000000, /* DDR667 FSB667 */ |
| 1857 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1858 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1859 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1860 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1861 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1862 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1863 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1864 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1865 | }; |
| 1866 | |
| 1867 | static const u32 command_clock_crossing[] = { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1868 | 0x04020208, 0x00000000, /* DDR400 FSB400 */ |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1869 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1870 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1871 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1872 | 0x00060108, 0x00000000, /* DDR400 FSB533 */ |
| 1873 | 0x04020108, 0x00000000, /* DDR533 FSB533 */ |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1874 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1875 | |
| 1876 | 0x00040318, 0x00000000, /* DDR400 FSB667 */ |
| 1877 | 0x04020118, 0x00000000, /* DDR533 FSB667 */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1878 | 0x02010804, 0x00000000, /* DDR667 FSB667 */ |
| 1879 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1880 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1881 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1882 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1883 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1884 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1885 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1886 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1887 | }; |
| 1888 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 1889 | #elif CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1890 | /* i945 G/P */ |
| 1891 | static const u32 data_clock_crossing[] = { |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1892 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1893 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1894 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1895 | |
| 1896 | 0x10080201, 0x00000000, /* DDR400 FSB533 */ |
| 1897 | 0x00100401, 0x00000000, /* DDR533 FSB533 */ |
Patrick Georgi | 682ea3c | 2010-04-20 15:52:57 +0000 | [diff] [blame] | 1898 | 0x00010402, 0x00000000, /* DDR667 FSB533 - fake values */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1899 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1900 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1901 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1902 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1903 | |
| 1904 | 0x04020108, 0x00000000, /* DDR400 FSB800 */ |
| 1905 | 0x00020108, 0x00000000, /* DDR533 FSB800 */ |
| 1906 | 0x00080201, 0x00000000, /* DDR667 FSB800 */ |
| 1907 | |
| 1908 | 0x00010402, 0x00000000, /* DDR400 FSB1066 */ |
| 1909 | 0x04020108, 0x00000000, /* DDR533 FSB1066 */ |
| 1910 | 0x08040110, 0x00000000, /* DDR667 FSB1066 */ |
| 1911 | }; |
| 1912 | |
| 1913 | static const u32 command_clock_crossing[] = { |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1914 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1915 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1916 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1917 | |
| 1918 | 0x00010800, 0x00000402, /* DDR400 FSB533 */ |
| 1919 | 0x01000400, 0x00000200, /* DDR533 FSB533 */ |
Patrick Georgi | 682ea3c | 2010-04-20 15:52:57 +0000 | [diff] [blame] | 1920 | 0x00020904, 0x00000000, /* DDR667 FSB533 - fake values */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1921 | |
Martin Roth | 2ed0aa2 | 2016-01-05 20:58:58 -0700 | [diff] [blame] | 1922 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1923 | 0xffffffff, 0xffffffff, /* nonexistent */ |
| 1924 | 0xffffffff, 0xffffffff, /* nonexistent */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1925 | |
| 1926 | 0x02010804, 0x00000000, /* DDR400 FSB800 */ |
| 1927 | 0x00010402, 0x00000000, /* DDR533 FSB800 */ |
Arthur Heymans | 8b6df62 | 2016-10-16 10:58:01 +0200 | [diff] [blame] | 1928 | 0x04020130, 0x00000008, /* DDR667 FSB800 */ |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1929 | |
| 1930 | 0x00020904, 0x00000000, /* DDR400 FSB1066 */ |
| 1931 | 0x02010804, 0x00000000, /* DDR533 FSB1066 */ |
| 1932 | 0x180601c0, 0x00000020, /* DDR667 FSB1066 */ |
| 1933 | }; |
| 1934 | #endif |
| 1935 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1936 | printk(BIOS_DEBUG, "Programming Clock Crossing..."); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1937 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1938 | printk(BIOS_DEBUG, "MEM="); |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1939 | switch (memclk()) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1940 | case 400: |
| 1941 | printk(BIOS_DEBUG, "400"); idx += 0; break; |
| 1942 | case 533: |
| 1943 | printk(BIOS_DEBUG, "533"); idx += 2; break; |
| 1944 | case 667: |
| 1945 | printk(BIOS_DEBUG, "667"); idx += 4; break; |
| 1946 | default: |
| 1947 | printk(BIOS_DEBUG, "RSVD %x", memclk()); return; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1948 | } |
| 1949 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1950 | printk(BIOS_DEBUG, " FSB="); |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1951 | switch (fsbclk()) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1952 | case 400: |
| 1953 | printk(BIOS_DEBUG, "400"); idx += 0; break; |
| 1954 | case 533: |
| 1955 | printk(BIOS_DEBUG, "533"); idx += 6; break; |
| 1956 | case 667: |
| 1957 | printk(BIOS_DEBUG, "667"); idx += 12; break; |
| 1958 | case 800: |
| 1959 | printk(BIOS_DEBUG, "800"); idx += 18; break; |
| 1960 | case 1066: |
| 1961 | printk(BIOS_DEBUG, "1066"); idx += 24; break; |
| 1962 | default: |
| 1963 | printk(BIOS_DEBUG, "RSVD %x\n", fsbclk()); return; |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 1964 | } |
| 1965 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 1966 | if (command_clock_crossing[idx] == 0xffffffff) |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1967 | printk(BIOS_DEBUG, "Invalid MEM/FSB combination!\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1968 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1969 | MCHBAR32(CCCFT + 0) = command_clock_crossing[idx]; |
| 1970 | MCHBAR32(CCCFT + 4) = command_clock_crossing[idx + 1]; |
| 1971 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1972 | MCHBAR32(C0DCCFT + 0) = data_clock_crossing[idx]; |
| 1973 | MCHBAR32(C0DCCFT + 4) = data_clock_crossing[idx + 1]; |
| 1974 | MCHBAR32(C1DCCFT + 0) = data_clock_crossing[idx]; |
| 1975 | MCHBAR32(C1DCCFT + 4) = data_clock_crossing[idx + 1]; |
| 1976 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 1977 | printk(BIOS_DEBUG, "... ok\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1978 | } |
| 1979 | |
| 1980 | static void sdram_disable_fast_dispatch(void) |
| 1981 | { |
| 1982 | u32 reg32; |
| 1983 | |
| 1984 | reg32 = MCHBAR32(FSBPMC3); |
| 1985 | reg32 |= (1 << 1); |
| 1986 | MCHBAR32(FSBPMC3) = reg32; |
| 1987 | |
| 1988 | reg32 = MCHBAR32(SBTEST); |
| 1989 | reg32 |= (3 << 1); |
| 1990 | MCHBAR32(SBTEST) = reg32; |
| 1991 | } |
| 1992 | |
| 1993 | static void sdram_pre_jedec_initialization(void) |
| 1994 | { |
| 1995 | u32 reg32; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 1996 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 1997 | reg32 = MCHBAR32(WCC); |
| 1998 | reg32 &= 0x113ff3ff; |
| 1999 | reg32 |= (4 << 29) | (3 << 25) | (1 << 10); |
| 2000 | MCHBAR32(WCC) = reg32; |
| 2001 | |
| 2002 | MCHBAR32(SMVREFC) |= (1 << 6); |
| 2003 | |
| 2004 | MCHBAR32(MMARB0) &= ~(3 << 17); |
| 2005 | MCHBAR32(MMARB0) |= (1 << 21) | (1 << 16); |
| 2006 | |
| 2007 | MCHBAR32(MMARB1) &= ~(7 << 8); |
| 2008 | MCHBAR32(MMARB1) |= (3 << 8); |
| 2009 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2010 | /* Adaptive Idle Timer Control */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2011 | MCHBAR32(C0AIT) = 0x000006c4; |
| 2012 | MCHBAR32(C0AIT+4) = 0x871a066d; |
| 2013 | |
| 2014 | MCHBAR32(C1AIT) = 0x000006c4; |
| 2015 | MCHBAR32(C1AIT+4) = 0x871a066d; |
| 2016 | } |
| 2017 | |
| 2018 | #define EA_DUALCHANNEL_XOR_BANK_RANK_MODE (0xd4 << 24) |
| 2019 | #define EA_DUALCHANNEL_XOR_BANK_MODE (0xf4 << 24) |
| 2020 | #define EA_DUALCHANNEL_BANK_RANK_MODE (0xc2 << 24) |
| 2021 | #define EA_DUALCHANNEL_BANK_MODE (0xe2 << 24) |
| 2022 | #define EA_SINGLECHANNEL_XOR_BANK_RANK_MODE (0x91 << 24) |
| 2023 | #define EA_SINGLECHANNEL_XOR_BANK_MODE (0xb1 << 24) |
| 2024 | #define EA_SINGLECHANNEL_BANK_RANK_MODE (0x80 << 24) |
| 2025 | #define EA_SINGLECHANNEL_BANK_MODE (0xa0 << 24) |
| 2026 | |
| 2027 | static void sdram_enhanced_addressing_mode(struct sys_info *sysinfo) |
| 2028 | { |
| 2029 | u32 chan0 = 0, chan1 = 0; |
| 2030 | int chan0_dualsided, chan1_dualsided, chan0_populated, chan1_populated; |
| 2031 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2032 | chan0_populated = (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED || |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2033 | sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED); |
Elyes HAOUAS | 308aeff | 2017-02-24 12:53:07 +0100 | [diff] [blame] | 2034 | chan1_populated = (sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED || |
| 2035 | sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2036 | chan0_dualsided = (sysinfo->banksize[1] || sysinfo->banksize[3]); |
| 2037 | chan1_dualsided = (sysinfo->banksize[5] || sysinfo->banksize[7]); |
| 2038 | |
| 2039 | if (sdram_capabilities_enhanced_addressing_xor()) { |
| 2040 | if (!sysinfo->interleaved) { |
Martin Roth | 128c104 | 2016-11-18 09:29:03 -0700 | [diff] [blame] | 2041 | /* Single Channel & Dual Channel Asymmetric */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2042 | if (chan0_populated) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2043 | if (chan0_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2044 | chan0 = EA_SINGLECHANNEL_XOR_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2045 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2046 | chan0 = EA_SINGLECHANNEL_XOR_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2047 | } |
| 2048 | if (chan1_populated) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2049 | if (chan1_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2050 | chan1 = EA_SINGLECHANNEL_XOR_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2051 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2052 | chan1 = EA_SINGLECHANNEL_XOR_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2053 | } |
| 2054 | } else { |
| 2055 | /* Interleaved has always both channels populated */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2056 | if (chan0_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2057 | chan0 = EA_DUALCHANNEL_XOR_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2058 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2059 | chan0 = EA_DUALCHANNEL_XOR_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2060 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2061 | if (chan1_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2062 | chan1 = EA_DUALCHANNEL_XOR_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2063 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2064 | chan1 = EA_DUALCHANNEL_XOR_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2065 | } |
| 2066 | } else { |
| 2067 | if (!sysinfo->interleaved) { |
Martin Roth | 128c104 | 2016-11-18 09:29:03 -0700 | [diff] [blame] | 2068 | /* Single Channel & Dual Channel Asymmetric */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2069 | if (chan0_populated) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2070 | if (chan0_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2071 | chan0 = EA_SINGLECHANNEL_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2072 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2073 | chan0 = EA_SINGLECHANNEL_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2074 | } |
| 2075 | if (chan1_populated) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2076 | if (chan1_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2077 | chan1 = EA_SINGLECHANNEL_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2078 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2079 | chan1 = EA_SINGLECHANNEL_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2080 | } |
| 2081 | } else { |
| 2082 | /* Interleaved has always both channels populated */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2083 | if (chan0_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2084 | chan0 = EA_DUALCHANNEL_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2085 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2086 | chan0 = EA_DUALCHANNEL_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2087 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2088 | if (chan1_dualsided) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2089 | chan1 = EA_DUALCHANNEL_BANK_RANK_MODE; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2090 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2091 | chan1 = EA_DUALCHANNEL_BANK_MODE; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2092 | } |
| 2093 | } |
| 2094 | |
| 2095 | MCHBAR32(C0DRC1) &= 0x00ffffff; |
| 2096 | MCHBAR32(C0DRC1) |= chan0; |
| 2097 | MCHBAR32(C1DRC1) &= 0x00ffffff; |
| 2098 | MCHBAR32(C1DRC1) |= chan1; |
| 2099 | } |
| 2100 | |
| 2101 | static void sdram_post_jedec_initialization(struct sys_info *sysinfo) |
| 2102 | { |
| 2103 | u32 reg32; |
| 2104 | |
| 2105 | /* Enable Channel XORing for Dual Channel Interleave */ |
| 2106 | if (sysinfo->interleaved) { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2107 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2108 | reg32 = MCHBAR32(DCC); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2109 | reg32 &= ~(1 << 10); |
Stefan Reinauer | 30140a5 | 2009-03-11 16:20:39 +0000 | [diff] [blame] | 2110 | reg32 |= (1 << 9); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2111 | MCHBAR32(DCC) = reg32; |
| 2112 | } |
| 2113 | |
| 2114 | /* DRAM mode optimizations */ |
| 2115 | sdram_enhanced_addressing_mode(sysinfo); |
| 2116 | |
| 2117 | reg32 = MCHBAR32(FSBPMC3); |
| 2118 | reg32 &= ~(1 << 1); |
| 2119 | MCHBAR32(FSBPMC3) = reg32; |
| 2120 | |
| 2121 | reg32 = MCHBAR32(SBTEST); |
| 2122 | reg32 &= ~(1 << 2); |
| 2123 | MCHBAR32(SBTEST) = reg32; |
| 2124 | |
| 2125 | reg32 = MCHBAR32(SBOCC); |
| 2126 | reg32 &= 0xffbdb6ff; |
| 2127 | reg32 |= (0xbdb6 << 8) | (1 << 0); |
| 2128 | MCHBAR32(SBOCC) = reg32; |
| 2129 | } |
| 2130 | |
| 2131 | static void sdram_power_management(struct sys_info *sysinfo) |
| 2132 | { |
| 2133 | u8 reg8; |
| 2134 | u16 reg16; |
| 2135 | u32 reg32; |
| 2136 | int integrated_graphics = 1; |
| 2137 | int i; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2138 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2139 | reg32 = MCHBAR32(C0DRT2); |
| 2140 | reg32 &= 0xffffff00; |
| 2141 | /* Idle timer = 8 clocks, CKE idle timer = 16 clocks */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2142 | reg32 |= (1 << 5) | (1 << 4); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2143 | MCHBAR32(C0DRT2) = reg32; |
| 2144 | |
| 2145 | reg32 = MCHBAR32(C1DRT2); |
| 2146 | reg32 &= 0xffffff00; |
| 2147 | /* Idle timer = 8 clocks, CKE idle timer = 16 clocks */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2148 | reg32 |= (1 << 5) | (1 << 4); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2149 | MCHBAR32(C1DRT2) = reg32; |
| 2150 | |
| 2151 | reg32 = MCHBAR32(C0DRC1); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2152 | |
| 2153 | reg32 |= (1 << 12) | (1 << 11); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2154 | MCHBAR32(C0DRC1) = reg32; |
| 2155 | |
| 2156 | reg32 = MCHBAR32(C1DRC1); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2157 | |
| 2158 | reg32 |= (1 << 12) | (1 << 11); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2159 | MCHBAR32(C1DRC1) = reg32; |
| 2160 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 2161 | if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM)) { |
Arthur Heymans | 2f6b52e | 2017-03-02 23:51:09 +0100 | [diff] [blame] | 2162 | if (i945_silicon_revision() > 1) { |
| 2163 | /* FIXME bits 5 and 0 only if PCIe graphics is disabled */ |
| 2164 | u16 peg_bits = (1 << 5) | (1 << 0); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2165 | |
Arthur Heymans | 2f6b52e | 2017-03-02 23:51:09 +0100 | [diff] [blame] | 2166 | MCHBAR16(UPMC1) = 0x1010 | peg_bits; |
| 2167 | } else { |
| 2168 | /* FIXME bits 5 and 0 only if PCIe graphics is disabled */ |
| 2169 | u16 peg_bits = (1 << 5) | (1 << 0); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2170 | |
Arthur Heymans | 2f6b52e | 2017-03-02 23:51:09 +0100 | [diff] [blame] | 2171 | /* Rev 0 and 1 */ |
| 2172 | MCHBAR16(UPMC1) = 0x0010 | peg_bits; |
| 2173 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2174 | } |
| 2175 | |
| 2176 | reg16 = MCHBAR16(UPMC2); |
| 2177 | reg16 &= 0xfc00; |
| 2178 | reg16 |= 0x0100; |
| 2179 | MCHBAR16(UPMC2) = reg16; |
| 2180 | |
| 2181 | MCHBAR32(UPMC3) = 0x000f06ff; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2182 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 2183 | for (i = 0; i < 5; i++) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2184 | MCHBAR32(UPMC3) &= ~(1 << 16); |
| 2185 | MCHBAR32(UPMC3) |= (1 << 16); |
| 2186 | } |
| 2187 | |
| 2188 | MCHBAR32(GIPMC1) = 0x8000000c; |
| 2189 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2190 | reg16 = MCHBAR16(CPCTL); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2191 | reg16 &= ~(7 << 11); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2192 | if (i945_silicon_revision() > 2) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2193 | reg16 |= (6 << 11); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2194 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2195 | reg16 |= (4 << 11); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2196 | MCHBAR16(CPCTL) = reg16; |
| 2197 | |
Stefan Reinauer | 30140a5 | 2009-03-11 16:20:39 +0000 | [diff] [blame] | 2198 | #if 0 |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2199 | if ((MCHBAR32(ECO) & (1 << 16)) != 0) { |
Stefan Reinauer | 30140a5 | 2009-03-11 16:20:39 +0000 | [diff] [blame] | 2200 | #else |
| 2201 | if (i945_silicon_revision() != 0) { |
| 2202 | #endif |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2203 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2204 | case 667: |
| 2205 | MCHBAR32(HGIPMC2) = 0x0d590d59; break; |
| 2206 | case 533: |
| 2207 | MCHBAR32(HGIPMC2) = 0x155b155b; break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2208 | } |
| 2209 | } else { |
| 2210 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2211 | case 667: |
| 2212 | MCHBAR32(HGIPMC2) = 0x09c409c4; break; |
| 2213 | case 533: |
| 2214 | MCHBAR32(HGIPMC2) = 0x0fa00fa0; break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2215 | } |
| 2216 | } |
| 2217 | |
| 2218 | MCHBAR32(FSBPMC1) = 0x8000000c; |
| 2219 | |
| 2220 | reg32 = MCHBAR32(C2C3TT); |
| 2221 | reg32 &= 0xffff0000; |
| 2222 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2223 | case 667: |
| 2224 | reg32 |= 0x0600; break; |
| 2225 | case 533: |
| 2226 | reg32 |= 0x0480; break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2227 | } |
| 2228 | MCHBAR32(C2C3TT) = reg32; |
| 2229 | |
| 2230 | reg32 = MCHBAR32(C3C4TT); |
| 2231 | reg32 &= 0xffff0000; |
| 2232 | switch (sysinfo->fsb_frequency) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2233 | case 667: |
| 2234 | reg32 |= 0x0b80; break; |
| 2235 | case 533: |
| 2236 | reg32 |= 0x0980; break; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2237 | } |
| 2238 | MCHBAR32(C3C4TT) = reg32; |
| 2239 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2240 | if (i945_silicon_revision() == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2241 | MCHBAR32(ECO) &= ~(1 << 16); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2242 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2243 | MCHBAR32(ECO) |= (1 << 16); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2244 | |
| 2245 | #if 0 |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2246 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2247 | if (i945_silicon_revision() == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2248 | MCHBAR32(FSBPMC3) &= ~(1 << 29); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2249 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2250 | MCHBAR32(FSBPMC3) |= (1 << 29); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2251 | #endif |
| 2252 | MCHBAR32(FSBPMC3) &= ~(1 << 29); |
| 2253 | |
| 2254 | MCHBAR32(FSBPMC3) |= (1 << 21); |
| 2255 | |
| 2256 | MCHBAR32(FSBPMC3) &= ~(1 << 19); |
| 2257 | |
| 2258 | MCHBAR32(FSBPMC3) &= ~(1 << 13); |
| 2259 | |
| 2260 | reg32 = MCHBAR32(FSBPMC4); |
| 2261 | reg32 &= ~(3 << 24); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2262 | reg32 |= (2 << 24); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2263 | MCHBAR32(FSBPMC4) = reg32; |
| 2264 | |
| 2265 | MCHBAR32(FSBPMC4) |= (1 << 21); |
| 2266 | |
| 2267 | MCHBAR32(FSBPMC4) |= (1 << 5); |
| 2268 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2269 | if ((i945_silicon_revision() < 2)) { /* || cpuid() = 0x6e8 */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2270 | /* stepping 0 and 1 or CPUID 6e8 */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2271 | MCHBAR32(FSBPMC4) &= ~(1 << 4); |
| 2272 | } else { |
Stefan Reinauer | 30140a5 | 2009-03-11 16:20:39 +0000 | [diff] [blame] | 2273 | MCHBAR32(FSBPMC4) |= (1 << 4); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2274 | } |
| 2275 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2276 | reg8 = pci_read_config8(PCI_DEV(0, 0x0, 0), 0xfc); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2277 | reg8 |= (1 << 4); |
| 2278 | pci_write_config8(PCI_DEV(0, 0x0, 0), 0xfc, reg8); |
| 2279 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2280 | reg8 = pci_read_config8(PCI_DEV(0, 0x2, 0), 0xc1); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2281 | reg8 |= (1 << 2); |
| 2282 | pci_write_config8(PCI_DEV(0, 0x2, 0), 0xc1, reg8); |
| 2283 | |
Stefan Reinauer | de3206a | 2010-02-22 06:09:43 +0000 | [diff] [blame] | 2284 | #ifdef C2_SELF_REFRESH_DISABLE |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2285 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2286 | if (integrated_graphics) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 2287 | printk(BIOS_DEBUG, "C2 self-refresh with IGD\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2288 | MCHBAR16(MIPMC4) = 0x0468; |
| 2289 | MCHBAR16(MIPMC5) = 0x046c; |
| 2290 | MCHBAR16(MIPMC6) = 0x046c; |
| 2291 | } else { |
| 2292 | MCHBAR16(MIPMC4) = 0x6468; |
| 2293 | MCHBAR16(MIPMC5) = 0x646c; |
| 2294 | MCHBAR16(MIPMC6) = 0x646c; |
| 2295 | } |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2296 | #else |
| 2297 | if (integrated_graphics) { |
| 2298 | MCHBAR16(MIPMC4) = 0x04f8; |
| 2299 | MCHBAR16(MIPMC5) = 0x04fc; |
| 2300 | MCHBAR16(MIPMC6) = 0x04fc; |
| 2301 | } else { |
| 2302 | MCHBAR16(MIPMC4) = 0x64f8; |
| 2303 | MCHBAR16(MIPMC5) = 0x64fc; |
| 2304 | MCHBAR16(MIPMC6) = 0x64fc; |
| 2305 | } |
| 2306 | |
| 2307 | #endif |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2308 | |
| 2309 | reg32 = MCHBAR32(PMCFG); |
| 2310 | reg32 &= ~(3 << 17); |
| 2311 | reg32 |= (2 << 17); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2312 | MCHBAR32(PMCFG) = reg32; |
| 2313 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2314 | MCHBAR32(PMCFG) |= (1 << 4); |
| 2315 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2316 | reg32 = MCHBAR32(0xc30); |
| 2317 | reg32 &= 0xffffff00; |
| 2318 | reg32 |= 0x01; |
| 2319 | MCHBAR32(0xc30) = reg32; |
| 2320 | |
| 2321 | MCHBAR32(0xb18) &= ~(1 << 21); |
| 2322 | } |
| 2323 | |
| 2324 | static void sdram_thermal_management(void) |
| 2325 | { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2326 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2327 | MCHBAR8(TCO1) = 0x00; |
| 2328 | MCHBAR8(TCO0) = 0x00; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2329 | |
| 2330 | /* The Thermal Sensors for DIMMs at 0x50, 0x52 are at I2C addr |
| 2331 | * 0x30/0x32. |
| 2332 | */ |
| 2333 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 2334 | /* TODO This is not implemented yet. Volunteers? */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2335 | } |
| 2336 | |
| 2337 | static void sdram_save_receive_enable(void) |
| 2338 | { |
| 2339 | int i; |
| 2340 | u32 reg32; |
| 2341 | u8 values[4]; |
| 2342 | |
| 2343 | /* The following values are stored to an unused CMOS |
| 2344 | * area and restored instead of recalculated in case |
| 2345 | * of an S3 resume. |
| 2346 | * |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2347 | * C0WL0REOST [7:0] -> 8 bit |
| 2348 | * C1WL0REOST [7:0] -> 8 bit |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2349 | * RCVENMT [11:8] [3:0] -> 8 bit |
| 2350 | * C0DRT1 [27:24] -> 4 bit |
| 2351 | * C1DRT1 [27:24] -> 4 bit |
| 2352 | */ |
| 2353 | |
| 2354 | values[0] = MCHBAR8(C0WL0REOST); |
| 2355 | values[1] = MCHBAR8(C1WL0REOST); |
| 2356 | |
| 2357 | reg32 = MCHBAR32(RCVENMT); |
| 2358 | values[2] = (u8)((reg32 >> (8 - 4)) & 0xf0) | (reg32 & 0x0f); |
| 2359 | |
| 2360 | reg32 = MCHBAR32(C0DRT1); |
| 2361 | values[3] = (reg32 >> 24) & 0x0f; |
| 2362 | reg32 = MCHBAR32(C1DRT1); |
| 2363 | values[3] |= (reg32 >> (24 - 4)) & 0xf0; |
| 2364 | |
| 2365 | /* coreboot only uses bytes 0 - 127 for its CMOS values so far |
Edwin Beasant | eb50c7d | 2010-07-06 21:05:04 +0000 | [diff] [blame] | 2366 | * so we grab bytes 128 - 131 to save the receive enable values |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2367 | */ |
| 2368 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 2369 | for (i = 0; i < 4; i++) |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2370 | cmos_write(values[i], 128 + i); |
| 2371 | } |
| 2372 | |
| 2373 | static void sdram_recover_receive_enable(void) |
| 2374 | { |
| 2375 | int i; |
| 2376 | u32 reg32; |
| 2377 | u8 values[4]; |
| 2378 | |
Elyes HAOUAS | 0a15fe9 | 2016-09-17 19:12:27 +0200 | [diff] [blame] | 2379 | for (i = 0; i < 4; i++) |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2380 | values[i] = cmos_read(128 + i); |
| 2381 | |
| 2382 | MCHBAR8(C0WL0REOST) = values[0]; |
| 2383 | MCHBAR8(C1WL0REOST) = values[1]; |
| 2384 | |
| 2385 | reg32 = MCHBAR32(RCVENMT); |
| 2386 | reg32 &= ~((0x0f << 8) | (0x0f << 0)); |
| 2387 | reg32 |= ((u32)(values[2] & 0xf0) << (8 - 4)) | (values[2] & 0x0f); |
| 2388 | MCHBAR32(RCVENMT) = reg32; |
| 2389 | |
| 2390 | reg32 = MCHBAR32(C0DRT1) & ~(0x0f << 24); |
| 2391 | reg32 |= (u32)(values[3] & 0x0f) << 24; |
| 2392 | MCHBAR32(C0DRT1) = reg32; |
| 2393 | |
| 2394 | reg32 = MCHBAR32(C1DRT1) & ~(0x0f << 24); |
| 2395 | reg32 |= (u32)(values[3] & 0xf0) << (24 - 4); |
| 2396 | MCHBAR32(C1DRT1) = reg32; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2397 | } |
| 2398 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2399 | static void sdram_program_receive_enable(struct sys_info *sysinfo) |
| 2400 | { |
| 2401 | MCHBAR32(REPC) |= (1 << 0); |
| 2402 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2403 | /* Program Receive Enable Timings */ |
| 2404 | if (sysinfo->boot_path == BOOT_PATH_RESUME) { |
| 2405 | sdram_recover_receive_enable(); |
| 2406 | } else { |
| 2407 | receive_enable_adjust(sysinfo); |
| 2408 | sdram_save_receive_enable(); |
| 2409 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2410 | |
| 2411 | MCHBAR32(C0DRC1) |= (1 << 6); |
| 2412 | MCHBAR32(C1DRC1) |= (1 << 6); |
| 2413 | MCHBAR32(C0DRC1) &= ~(1 << 6); |
| 2414 | MCHBAR32(C1DRC1) &= ~(1 << 6); |
| 2415 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2416 | MCHBAR32(MIPMC3) |= (0x0f << 0); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2417 | } |
| 2418 | |
| 2419 | /** |
| 2420 | * @brief Enable On-Die Termination for DDR2. |
| 2421 | * |
| 2422 | */ |
| 2423 | |
| 2424 | static void sdram_on_die_termination(struct sys_info *sysinfo) |
| 2425 | { |
| 2426 | static const u32 odt[] = { |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2427 | 0x00024911, 0xe0010000, |
| 2428 | 0x00049211, 0xe0020000, |
| 2429 | 0x0006db11, 0xe0030000, |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2430 | }; |
| 2431 | |
| 2432 | u32 reg32; |
| 2433 | int cas; |
| 2434 | |
| 2435 | reg32 = MCHBAR32(ODTC); |
| 2436 | reg32 &= ~(3 << 16); |
| 2437 | reg32 |= (1 << 14) | (1 << 6) | (2 << 16); |
| 2438 | MCHBAR32(ODTC) = reg32; |
| 2439 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2440 | if (!(sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED && |
| 2441 | sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED)) { |
Elyes HAOUAS | 3842498 | 2016-08-21 12:01:04 +0200 | [diff] [blame] | 2442 | printk(BIOS_DEBUG, "one dimm per channel config..\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2443 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2444 | reg32 = MCHBAR32(C0ODT); |
| 2445 | reg32 &= ~(7 << 28); |
| 2446 | MCHBAR32(C0ODT) = reg32; |
| 2447 | reg32 = MCHBAR32(C1ODT); |
| 2448 | reg32 &= ~(7 << 28); |
| 2449 | MCHBAR32(C1ODT) = reg32; |
| 2450 | } |
| 2451 | |
| 2452 | cas = sysinfo->cas; |
| 2453 | |
| 2454 | reg32 = MCHBAR32(C0ODT) & 0xfff00000; |
| 2455 | reg32 |= odt[(cas-3) * 2]; |
| 2456 | MCHBAR32(C0ODT) = reg32; |
| 2457 | |
| 2458 | reg32 = MCHBAR32(C1ODT) & 0xfff00000; |
| 2459 | reg32 |= odt[(cas-3) * 2]; |
| 2460 | MCHBAR32(C1ODT) = reg32; |
| 2461 | |
| 2462 | reg32 = MCHBAR32(C0ODT + 4) & 0x1fc8ffff; |
| 2463 | reg32 |= odt[((cas-3) * 2) + 1]; |
| 2464 | MCHBAR32(C0ODT + 4) = reg32; |
| 2465 | |
| 2466 | reg32 = MCHBAR32(C1ODT + 4) & 0x1fc8ffff; |
| 2467 | reg32 |= odt[((cas-3) * 2) + 1]; |
| 2468 | MCHBAR32(C1ODT + 4) = reg32; |
| 2469 | } |
| 2470 | |
| 2471 | /** |
| 2472 | * @brief Enable clocks to populated sockets |
| 2473 | */ |
| 2474 | |
| 2475 | static void sdram_enable_memory_clocks(struct sys_info *sysinfo) |
| 2476 | { |
| 2477 | u8 clocks[2] = { 0, 0 }; |
| 2478 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 2479 | #if CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2480 | #define CLOCKS_WIDTH 2 |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 2481 | #elif CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GC) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2482 | #define CLOCKS_WIDTH 3 |
| 2483 | #endif |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2484 | if (sysinfo->dimm[0] != SYSINFO_DIMM_NOT_POPULATED) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2485 | clocks[0] |= (1 << CLOCKS_WIDTH)-1; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2486 | |
| 2487 | if (sysinfo->dimm[1] != SYSINFO_DIMM_NOT_POPULATED) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2488 | clocks[0] |= ((1 << CLOCKS_WIDTH)-1) << CLOCKS_WIDTH; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2489 | |
| 2490 | if (sysinfo->dimm[2] != SYSINFO_DIMM_NOT_POPULATED) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2491 | clocks[1] |= (1 << CLOCKS_WIDTH)-1; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2492 | |
| 2493 | if (sysinfo->dimm[3] != SYSINFO_DIMM_NOT_POPULATED) |
Stefan Reinauer | 24b4df5 | 2010-01-17 13:47:35 +0000 | [diff] [blame] | 2494 | clocks[1] |= ((1 << CLOCKS_WIDTH)-1) << CLOCKS_WIDTH; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2495 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 2496 | #if CONFIG(OVERRIDE_CLOCK_DISABLE) |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2497 | /* Usually system firmware turns off system memory clock signals |
| 2498 | * to unused SO-DIMM slots to reduce EMI and power consumption. |
| 2499 | * However, the Kontron 986LCD-M does not like unused clock |
| 2500 | * signals to be disabled. |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2501 | */ |
| 2502 | |
| 2503 | clocks[0] = 0xf; /* force all clock gate pairs to enable */ |
| 2504 | clocks[1] = 0xf; /* force all clock gate pairs to enable */ |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2505 | #endif |
| 2506 | |
| 2507 | MCHBAR8(C0DCLKDIS) = clocks[0]; |
| 2508 | MCHBAR8(C1DCLKDIS) = clocks[1]; |
| 2509 | } |
| 2510 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2511 | #define RTT_ODT_NONE 0 |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2512 | #define RTT_ODT_50_OHM ((1 << 9) | (1 << 5)) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2513 | #define RTT_ODT_75_OHM (1 << 5) |
| 2514 | #define RTT_ODT_150_OHM (1 << 9) |
| 2515 | |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2516 | #define EMRS_OCD_DEFAULT ((1 << 12) | (1 << 11) | (1 << 10)) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2517 | |
| 2518 | #define MRS_CAS_3 (3 << 7) |
| 2519 | #define MRS_CAS_4 (4 << 7) |
| 2520 | #define MRS_CAS_5 (5 << 7) |
| 2521 | |
| 2522 | #define MRS_TWR_3 (2 << 12) |
| 2523 | #define MRS_TWR_4 (3 << 12) |
| 2524 | #define MRS_TWR_5 (4 << 12) |
| 2525 | |
| 2526 | #define MRS_BT (1 << 6) |
| 2527 | |
| 2528 | #define MRS_BL4 (2 << 3) |
| 2529 | #define MRS_BL8 (3 << 3) |
| 2530 | |
| 2531 | static void sdram_jedec_enable(struct sys_info *sysinfo) |
| 2532 | { |
| 2533 | int i, nonzero; |
| 2534 | u32 bankaddr = 0, tmpaddr, mrsaddr = 0; |
| 2535 | |
| 2536 | for (i = 0, nonzero = -1; i < 8; i++) { |
Elyes HAOUAS | 0191220 | 2019-01-19 16:36:38 +0100 | [diff] [blame] | 2537 | if (sysinfo->banksize[i] == 0) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2538 | continue; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2539 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 2540 | printk(BIOS_DEBUG, "jedec enable sequence: bank %d\n", i); |
Elyes HAOUAS | 0191220 | 2019-01-19 16:36:38 +0100 | [diff] [blame] | 2541 | |
| 2542 | if (nonzero != -1) { |
| 2543 | if (sysinfo->interleaved && nonzero < 4 && i >= 4) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2544 | bankaddr = 0x40; |
Elyes HAOUAS | 0191220 | 2019-01-19 16:36:38 +0100 | [diff] [blame] | 2545 | } else { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 2546 | printk(BIOS_DEBUG, "bankaddr from bank size of rank %d\n", nonzero); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2547 | bankaddr += sysinfo->banksize[nonzero] << |
| 2548 | (sysinfo->interleaved ? 26 : 25); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2549 | } |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2550 | } |
| 2551 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2552 | /* We have a bank with a non-zero size.. Remember it |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2553 | * for the next offset we have to calculate |
| 2554 | */ |
| 2555 | nonzero = i; |
| 2556 | |
| 2557 | /* Get CAS latency set up */ |
| 2558 | switch (sysinfo->cas) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2559 | case 5: |
| 2560 | mrsaddr = MRS_CAS_5; break; |
| 2561 | case 4: |
| 2562 | mrsaddr = MRS_CAS_4; break; |
| 2563 | case 3: |
| 2564 | mrsaddr = MRS_CAS_3; break; |
| 2565 | default: |
| 2566 | die("Jedec Error (CAS).\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2567 | } |
| 2568 | |
| 2569 | /* Get tWR set */ |
| 2570 | switch (sysinfo->twr) { |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2571 | case 5: |
| 2572 | mrsaddr |= MRS_TWR_5; break; |
| 2573 | case 4: |
| 2574 | mrsaddr |= MRS_TWR_4; break; |
| 2575 | case 3: |
| 2576 | mrsaddr |= MRS_TWR_3; break; |
| 2577 | default: |
| 2578 | die("Jedec Error (tWR).\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2579 | } |
| 2580 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2581 | /* Set "Burst Type" */ |
| 2582 | mrsaddr |= MRS_BT; |
| 2583 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2584 | /* Interleaved */ |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2585 | if (sysinfo->interleaved) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2586 | mrsaddr = mrsaddr << 1; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2587 | |
| 2588 | /* Only burst length 8 supported */ |
| 2589 | mrsaddr |= MRS_BL8; |
| 2590 | |
| 2591 | /* Apply NOP */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2592 | PRINTK_DEBUG("Apply NOP\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2593 | do_ram_command(RAM_COMMAND_NOP); |
| 2594 | ram_read32(bankaddr); |
| 2595 | |
| 2596 | /* Precharge all banks */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2597 | PRINTK_DEBUG("All Banks Precharge\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2598 | do_ram_command(RAM_COMMAND_PRECHARGE); |
| 2599 | ram_read32(bankaddr); |
| 2600 | |
| 2601 | /* Extended Mode Register Set (2) */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2602 | PRINTK_DEBUG("Extended Mode Register Set(2)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2603 | do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_2); |
| 2604 | ram_read32(bankaddr); |
| 2605 | |
| 2606 | /* Extended Mode Register Set (3) */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2607 | PRINTK_DEBUG("Extended Mode Register Set(3)\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2608 | do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_3); |
| 2609 | ram_read32(bankaddr); |
| 2610 | |
| 2611 | /* Extended Mode Register Set */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2612 | PRINTK_DEBUG("Extended Mode Register Set\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2613 | do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_1); |
| 2614 | tmpaddr = bankaddr; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2615 | if (!sdram_capabilities_dual_channel()) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2616 | tmpaddr |= RTT_ODT_75_OHM; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2617 | else if (sysinfo->interleaved) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2618 | tmpaddr |= (RTT_ODT_150_OHM << 1); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2619 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2620 | tmpaddr |= RTT_ODT_150_OHM; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2621 | ram_read32(tmpaddr); |
| 2622 | |
| 2623 | /* Mode Register Set: Reset DLLs */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2624 | PRINTK_DEBUG("MRS: Reset DLLs\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2625 | do_ram_command(RAM_COMMAND_MRS); |
| 2626 | tmpaddr = bankaddr; |
| 2627 | tmpaddr |= mrsaddr; |
| 2628 | /* Set DLL reset bit */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2629 | if (sysinfo->interleaved) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2630 | tmpaddr |= (1 << 12); |
| 2631 | else |
| 2632 | tmpaddr |= (1 << 11); |
| 2633 | ram_read32(tmpaddr); |
| 2634 | |
| 2635 | /* Precharge all banks */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2636 | PRINTK_DEBUG("All Banks Precharge\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2637 | do_ram_command(RAM_COMMAND_PRECHARGE); |
| 2638 | ram_read32(bankaddr); |
| 2639 | |
| 2640 | /* CAS before RAS Refresh */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2641 | PRINTK_DEBUG("CAS before RAS\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2642 | do_ram_command(RAM_COMMAND_CBR); |
| 2643 | |
| 2644 | /* CBR wants two READs */ |
| 2645 | ram_read32(bankaddr); |
| 2646 | ram_read32(bankaddr); |
| 2647 | |
| 2648 | /* Mode Register Set: Enable DLLs */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2649 | PRINTK_DEBUG("MRS: Enable DLLs\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2650 | do_ram_command(RAM_COMMAND_MRS); |
| 2651 | |
| 2652 | tmpaddr = bankaddr; |
| 2653 | tmpaddr |= mrsaddr; |
| 2654 | ram_read32(tmpaddr); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2655 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2656 | /* Extended Mode Register Set */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2657 | PRINTK_DEBUG("Extended Mode Register Set: ODT/OCD\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2658 | do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_1); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2659 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2660 | tmpaddr = bankaddr; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2661 | if (!sdram_capabilities_dual_channel()) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2662 | tmpaddr |= RTT_ODT_75_OHM | EMRS_OCD_DEFAULT; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2663 | else if (sysinfo->interleaved) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2664 | tmpaddr |= ((RTT_ODT_150_OHM | EMRS_OCD_DEFAULT) << 1); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2665 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2666 | tmpaddr |= RTT_ODT_150_OHM | EMRS_OCD_DEFAULT; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2667 | ram_read32(tmpaddr); |
| 2668 | |
| 2669 | /* Extended Mode Register Set */ |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2670 | PRINTK_DEBUG("Extended Mode Register Set: OCD Exit\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2671 | do_ram_command(RAM_COMMAND_EMRS | RAM_EMRS_1); |
| 2672 | |
| 2673 | tmpaddr = bankaddr; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2674 | if (!sdram_capabilities_dual_channel()) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2675 | tmpaddr |= RTT_ODT_75_OHM; |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2676 | else if (sysinfo->interleaved) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2677 | tmpaddr |= (RTT_ODT_150_OHM << 1); |
Arthur Heymans | 70a8e34 | 2017-03-09 11:30:23 +0100 | [diff] [blame] | 2678 | else |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2679 | tmpaddr |= RTT_ODT_150_OHM; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2680 | ram_read32(tmpaddr); |
| 2681 | } |
| 2682 | } |
| 2683 | |
| 2684 | static void sdram_init_complete(void) |
| 2685 | { |
Stefan Reinauer | 779b3e3 | 2008-11-10 15:43:37 +0000 | [diff] [blame] | 2686 | PRINTK_DEBUG("Normal Operation\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2687 | do_ram_command(RAM_COMMAND_NORMAL); |
| 2688 | } |
| 2689 | |
| 2690 | static void sdram_setup_processor_side(void) |
| 2691 | { |
| 2692 | if (i945_silicon_revision() == 0) |
| 2693 | MCHBAR32(FSBPMC3) |= (1 << 2); |
| 2694 | |
| 2695 | MCHBAR8(0xb00) |= 1; |
| 2696 | |
| 2697 | if (i945_silicon_revision() == 0) |
| 2698 | MCHBAR32(SLPCTL) |= (1 << 8); |
| 2699 | } |
| 2700 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2701 | /** |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2702 | * @param boot_path: 0 = normal, 1 = reset, 2 = resume from s3 |
Martin Roth | f4cb412 | 2015-01-06 10:27:39 -0700 | [diff] [blame] | 2703 | * @param spd_addresses pointer to a list of SPD addresses |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2704 | */ |
Sven Schnelle | 541269b | 2011-02-21 09:39:17 +0000 | [diff] [blame] | 2705 | void sdram_initialize(int boot_path, const u8 *spd_addresses) |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2706 | { |
| 2707 | struct sys_info sysinfo; |
Arthur Heymans | 0ab4904 | 2017-02-06 22:40:14 +0100 | [diff] [blame] | 2708 | u8 reg8; |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2709 | |
Patrick Georgi | 771328f | 2015-07-13 19:24:07 +0200 | [diff] [blame] | 2710 | timestamp_add_now(TS_BEFORE_INITRAM); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 2711 | printk(BIOS_DEBUG, "Setting up RAM controller.\n"); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2712 | |
| 2713 | memset(&sysinfo, 0, sizeof(sysinfo)); |
| 2714 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2715 | sysinfo.boot_path = boot_path; |
Sven Schnelle | 541269b | 2011-02-21 09:39:17 +0000 | [diff] [blame] | 2716 | sysinfo.spd_addresses = spd_addresses; |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2717 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2718 | /* Look at the type of DIMMs and verify all DIMMs are x8 or x16 width */ |
| 2719 | sdram_get_dram_configuration(&sysinfo); |
| 2720 | |
Stefan Reinauer | bf264e9 | 2010-05-14 19:09:20 +0000 | [diff] [blame] | 2721 | /* If error, do cold boot */ |
| 2722 | sdram_detect_errors(&sysinfo); |
| 2723 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2724 | /* Program PLL settings */ |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2725 | sdram_program_pll_settings(&sysinfo); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2726 | |
Arthur Heymans | 1853781 | 2016-12-28 21:20:45 +0100 | [diff] [blame] | 2727 | /* |
| 2728 | * Program Graphics Frequency |
| 2729 | * Set core display and render clock on 945GC to the max |
| 2730 | */ |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 2731 | if (CONFIG(NORTHBRIDGE_INTEL_SUBTYPE_I945GM)) |
Arthur Heymans | 1853781 | 2016-12-28 21:20:45 +0100 | [diff] [blame] | 2732 | sdram_program_graphics_frequency(&sysinfo); |
| 2733 | else |
| 2734 | pci_write_config16(PCI_DEV(0, 2, 0), GCFC, 0x0534); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2735 | |
| 2736 | /* Program System Memory Frequency */ |
| 2737 | sdram_program_memory_frequency(&sysinfo); |
| 2738 | |
| 2739 | /* Determine Mode of Operation (Interleaved etc) */ |
| 2740 | sdram_set_channel_mode(&sysinfo); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2741 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2742 | /* Program Clock Crossing values */ |
| 2743 | sdram_program_clock_crossing(); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2744 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2745 | /* Disable fast dispatch */ |
| 2746 | sdram_disable_fast_dispatch(); |
| 2747 | |
| 2748 | /* Enable WIODLL Power Down in ACPI states */ |
| 2749 | MCHBAR32(C0DMC) |= (1 << 24); |
| 2750 | MCHBAR32(C1DMC) |= (1 << 24); |
| 2751 | |
| 2752 | /* Program DRAM Row Boundary/Attribute Registers */ |
| 2753 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2754 | /* program row size DRB and set TOLUD */ |
| 2755 | sdram_program_row_boundaries(&sysinfo); |
| 2756 | |
| 2757 | /* program page size DRA */ |
| 2758 | sdram_set_row_attributes(&sysinfo); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2759 | |
| 2760 | /* Program CxBNKARC */ |
| 2761 | sdram_set_bank_architecture(&sysinfo); |
| 2762 | |
| 2763 | /* Program DRAM Timing and Control registers based on SPD */ |
| 2764 | sdram_set_timing_and_control(&sysinfo); |
| 2765 | |
| 2766 | /* On-Die Termination Adjustment */ |
| 2767 | sdram_on_die_termination(&sysinfo); |
| 2768 | |
| 2769 | /* Pre Jedec Initialization */ |
| 2770 | sdram_pre_jedec_initialization(); |
| 2771 | |
| 2772 | /* Perform System Memory IO Initialization */ |
| 2773 | sdram_initialize_system_memory_io(&sysinfo); |
| 2774 | |
| 2775 | /* Perform System Memory IO Buffer Enable */ |
| 2776 | sdram_enable_system_memory_io(&sysinfo); |
| 2777 | |
| 2778 | /* Enable System Memory Clocks */ |
| 2779 | sdram_enable_memory_clocks(&sysinfo); |
| 2780 | |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2781 | if (boot_path == BOOT_PATH_NORMAL) { |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2782 | /* Jedec Initialization sequence */ |
| 2783 | sdram_jedec_enable(&sysinfo); |
| 2784 | } |
| 2785 | |
| 2786 | /* Program Power Management Registers */ |
| 2787 | sdram_power_management(&sysinfo); |
| 2788 | |
| 2789 | /* Post Jedec Init */ |
| 2790 | sdram_post_jedec_initialization(&sysinfo); |
| 2791 | |
| 2792 | /* Program DRAM Throttling */ |
| 2793 | sdram_thermal_management(); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2794 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2795 | /* Normal Operations */ |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 2796 | sdram_init_complete(); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2797 | |
| 2798 | /* Program Receive Enable Timings */ |
| 2799 | sdram_program_receive_enable(&sysinfo); |
| 2800 | |
| 2801 | /* Enable Periodic RCOMP */ |
| 2802 | sdram_enable_rcomp(); |
| 2803 | |
| 2804 | /* Tell ICH7 that we're done */ |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 2805 | reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2806 | reg8 &= ~(1 << 7); |
Elyes HAOUAS | 32b9a99 | 2019-01-21 14:54:31 +0100 | [diff] [blame] | 2807 | pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_2, reg8); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2808 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 2809 | printk(BIOS_DEBUG, "RAM initialization finished.\n"); |
Stefan Reinauer | 71a3d96 | 2009-07-21 21:44:24 +0000 | [diff] [blame] | 2810 | |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2811 | sdram_setup_processor_side(); |
Patrick Georgi | 771328f | 2015-07-13 19:24:07 +0200 | [diff] [blame] | 2812 | timestamp_add_now(TS_AFTER_INITRAM); |
Stefan Reinauer | 278534d | 2008-10-29 04:51:07 +0000 | [diff] [blame] | 2813 | } |