Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2011 Google Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <console/console.h> |
| 17 | #include <string.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 18 | #include <arch/io.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 19 | #include <cbmem.h> |
| 20 | #include <arch/cbfs.h> |
| 21 | #include <cbfs.h> |
Patrick Georgi | bd79c5e | 2014-11-28 22:35:36 +0100 | [diff] [blame] | 22 | #include <halt.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 23 | #include <ip_checksum.h> |
Matt DeVillier | 5aaa8ce | 2016-09-02 13:29:17 -0500 | [diff] [blame] | 24 | #include <memory_info.h> |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 25 | #include <mrc_cache.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 26 | #include <pc80/mc146818rtc.h> |
| 27 | #include <device/pci_def.h> |
Matt DeVillier | 5aaa8ce | 2016-09-02 13:29:17 -0500 | [diff] [blame] | 28 | #include <device/dram/ddr3.h> |
| 29 | #include <smbios.h> |
| 30 | #include <spd.h> |
Philipp Deppenwiese | fea2429 | 2017-10-17 17:02:29 +0200 | [diff] [blame] | 31 | #include <security/vboot/vboot_common.h> |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 32 | #include <commonlib/region.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 33 | #include "raminit.h" |
| 34 | #include "pei_data.h" |
| 35 | #include "haswell.h" |
| 36 | |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 37 | #define MRC_CACHE_VERSION 1 |
| 38 | |
Aaron Durbin | 2ad1dba | 2013-02-07 00:51:18 -0600 | [diff] [blame] | 39 | void save_mrc_data(struct pei_data *pei_data) |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 40 | { |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 41 | /* Save the MRC S3 restore data to cbmem */ |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 42 | mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, |
| 43 | pei_data->mrc_output, pei_data->mrc_output_len); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | static void prepare_mrc_cache(struct pei_data *pei_data) |
| 47 | { |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 48 | struct region_device rdev; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 49 | |
| 50 | // preset just in case there is an error |
| 51 | pei_data->mrc_input = NULL; |
| 52 | pei_data->mrc_input_len = 0; |
| 53 | |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 54 | if (mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, &rdev)) |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 55 | /* error message printed in find_current_mrc_cache */ |
| 56 | return; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 57 | |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 58 | pei_data->mrc_input = rdev_mmap_full(&rdev); |
| 59 | pei_data->mrc_input_len = region_device_sz(&rdev); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 60 | |
Arthur Heymans | f300f36 | 2018-01-27 13:39:12 +0100 | [diff] [blame] | 61 | printk(BIOS_DEBUG, "%s: at %p, size %x\n", |
| 62 | __func__, pei_data->mrc_input, pei_data->mrc_input_len); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 63 | } |
| 64 | |
Elyes HAOUAS | 448d9fb | 2018-05-22 12:51:27 +0200 | [diff] [blame] | 65 | static const char *ecc_decoder[] = { |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 66 | "inactive", |
| 67 | "active on IO", |
| 68 | "disabled on IO", |
| 69 | "active" |
| 70 | }; |
| 71 | |
| 72 | /* |
| 73 | * Dump in the log memory controller configuration as read from the memory |
| 74 | * controller registers. |
| 75 | */ |
| 76 | static void report_memory_config(void) |
| 77 | { |
| 78 | u32 addr_decoder_common, addr_decode_ch[2]; |
| 79 | int i; |
| 80 | |
| 81 | addr_decoder_common = MCHBAR32(0x5000); |
| 82 | addr_decode_ch[0] = MCHBAR32(0x5004); |
| 83 | addr_decode_ch[1] = MCHBAR32(0x5008); |
| 84 | |
| 85 | printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", |
| 86 | (MCHBAR32(0x5e04) * 13333 * 2 + 50)/100); |
| 87 | printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", |
| 88 | addr_decoder_common & 3, |
| 89 | (addr_decoder_common >> 2) & 3, |
| 90 | (addr_decoder_common >> 4) & 3); |
| 91 | |
| 92 | for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { |
| 93 | u32 ch_conf = addr_decode_ch[i]; |
| 94 | printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", |
| 95 | i, ch_conf); |
| 96 | printk(BIOS_DEBUG, " ECC %s\n", |
| 97 | ecc_decoder[(ch_conf >> 24) & 3]); |
| 98 | printk(BIOS_DEBUG, " enhanced interleave mode %s\n", |
| 99 | ((ch_conf >> 22) & 1) ? "on" : "off"); |
| 100 | printk(BIOS_DEBUG, " rank interleave %s\n", |
| 101 | ((ch_conf >> 21) & 1) ? "on" : "off"); |
Duncan Laurie | 8d77402 | 2013-10-22 16:32:49 -0700 | [diff] [blame] | 102 | printk(BIOS_DEBUG, " DIMMA %d MB width %s %s rank%s\n", |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 103 | ((ch_conf >> 0) & 0xff) * 256, |
Duncan Laurie | 8d77402 | 2013-10-22 16:32:49 -0700 | [diff] [blame] | 104 | ((ch_conf >> 19) & 1) ? "x16" : "x8 or x32", |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 105 | ((ch_conf >> 17) & 1) ? "dual" : "single", |
| 106 | ((ch_conf >> 16) & 1) ? "" : ", selected"); |
Duncan Laurie | 8d77402 | 2013-10-22 16:32:49 -0700 | [diff] [blame] | 107 | printk(BIOS_DEBUG, " DIMMB %d MB width %s %s rank%s\n", |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 108 | ((ch_conf >> 8) & 0xff) * 256, |
Ryan Salsamendi | dab81a4 | 2017-06-30 17:36:41 -0700 | [diff] [blame] | 109 | ((ch_conf >> 20) & 1) ? "x16" : "x8 or x32", |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 110 | ((ch_conf >> 18) & 1) ? "dual" : "single", |
| 111 | ((ch_conf >> 16) & 1) ? ", selected" : ""); |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Find PEI executable in coreboot filesystem and execute it. |
| 117 | * |
| 118 | * @param pei_data: configuration data for UEFI PEI reference code |
| 119 | */ |
| 120 | void sdram_initialize(struct pei_data *pei_data) |
| 121 | { |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 122 | unsigned long entry; |
Arthur Heymans | 8da2fa0 | 2018-06-06 10:35:45 +0200 | [diff] [blame] | 123 | uint32_t type = CBFS_TYPE_MRC; |
| 124 | struct cbfsf f; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 125 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 126 | printk(BIOS_DEBUG, "Starting UEFI PEI System Agent\n"); |
| 127 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 128 | /* |
| 129 | * Do not pass MRC data in for recovery mode boot, |
| 130 | * Always pass it in for S3 resume. |
| 131 | */ |
Furquan Shaikh | 0325dc6 | 2016-07-25 13:02:36 -0700 | [diff] [blame] | 132 | if (!vboot_recovery_mode_enabled() || pei_data->boot_mode == 2) |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 133 | prepare_mrc_cache(pei_data); |
| 134 | |
| 135 | /* If MRC data is not found we cannot continue S3 resume. */ |
| 136 | if (pei_data->boot_mode == 2 && !pei_data->mrc_input) { |
Duncan Laurie | 727b545 | 2013-08-08 16:28:41 -0700 | [diff] [blame] | 137 | post_code(POST_RESUME_FAILURE); |
| 138 | printk(BIOS_DEBUG, "Giving up in sdram_initialize: " |
| 139 | "No MRC data\n"); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 140 | outb(0x6, 0xcf9); |
Patrick Georgi | bd79c5e | 2014-11-28 22:35:36 +0100 | [diff] [blame] | 141 | halt(); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | /* Pass console handler in pei_data */ |
Kyösti Mälkki | 657e0be | 2014-02-04 19:03:57 +0200 | [diff] [blame] | 145 | pei_data->tx_byte = do_putchar; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 146 | |
Arthur Heymans | 8da2fa0 | 2018-06-06 10:35:45 +0200 | [diff] [blame] | 147 | /* |
| 148 | * Locate and call UEFI System Agent binary. The binary needs to be at |
| 149 | * a fixed offset in the flash and can therefore only reside in the |
| 150 | * COREBOOT fmap region |
| 151 | */ |
| 152 | if (cbfs_locate_file_in_region(&f, "COREBOOT", "mrc.bin", &type) < 0) |
| 153 | die("mrc.bin not found!"); |
| 154 | /* We don't care about leaking the mapping */ |
| 155 | entry = (unsigned long)rdev_mmap_full(&f.data); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 156 | if (entry) { |
| 157 | int rv; |
| 158 | asm volatile ( |
| 159 | "call *%%ecx\n\t" |
| 160 | :"=a" (rv) : "c" (entry), "a" (pei_data)); |
| 161 | if (rv) { |
| 162 | switch (rv) { |
| 163 | case -1: |
| 164 | printk(BIOS_ERR, "PEI version mismatch.\n"); |
| 165 | break; |
| 166 | case -2: |
| 167 | printk(BIOS_ERR, "Invalid memory frequency.\n"); |
| 168 | break; |
| 169 | default: |
| 170 | printk(BIOS_ERR, "MRC returned %x.\n", rv); |
| 171 | } |
| 172 | die("Nonzero MRC return value.\n"); |
| 173 | } |
| 174 | } else { |
| 175 | die("UEFI PEI System Agent not found.\n"); |
| 176 | } |
| 177 | |
| 178 | /* For reference print the System Agent version |
| 179 | * after executing the UEFI PEI stage. |
| 180 | */ |
| 181 | u32 version = MCHBAR32(0x5034); |
| 182 | printk(BIOS_DEBUG, "System Agent Version %d.%d.%d Build %d\n", |
Elyes HAOUAS | a342f39 | 2018-10-17 10:56:26 +0200 | [diff] [blame^] | 183 | version >> 24, (version >> 16) & 0xff, |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 184 | (version >> 8) & 0xff, version & 0xff); |
| 185 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 186 | report_memory_config(); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 187 | } |
Matt DeVillier | 5aaa8ce | 2016-09-02 13:29:17 -0500 | [diff] [blame] | 188 | |
| 189 | void setup_sdram_meminfo(struct pei_data *pei_data) |
| 190 | { |
| 191 | u32 addr_decoder_common, addr_decode_ch[2]; |
| 192 | struct memory_info* mem_info; |
| 193 | struct dimm_info *dimm; |
| 194 | int ddr_frequency; |
| 195 | int dimm_size; |
| 196 | int ch, d_num; |
| 197 | int dimm_cnt = 0; |
| 198 | |
| 199 | mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(struct memory_info)); |
Nico Huber | acac02d | 2017-06-20 14:49:04 +0200 | [diff] [blame] | 200 | if (!mem_info) |
| 201 | die("Failed to add memory info to CBMEM.\n"); |
Matt DeVillier | 5aaa8ce | 2016-09-02 13:29:17 -0500 | [diff] [blame] | 202 | memset(mem_info, 0, sizeof(struct memory_info)); |
| 203 | |
| 204 | addr_decoder_common = MCHBAR32(0x5000); |
| 205 | addr_decode_ch[0] = MCHBAR32(0x5004); |
| 206 | addr_decode_ch[1] = MCHBAR32(0x5008); |
| 207 | |
| 208 | ddr_frequency = (MCHBAR32(0x5e04) * 13333 * 2 + 50) / 100; |
| 209 | |
| 210 | for (ch = 0; ch < ARRAY_SIZE(addr_decode_ch); ch++) { |
| 211 | u32 ch_conf = addr_decode_ch[ch]; |
| 212 | /* DIMMs A/B */ |
| 213 | for (d_num = 0; d_num < 2; d_num++) { |
| 214 | dimm_size = ((ch_conf >> (d_num * 8)) & 0xff) * 256; |
| 215 | if (dimm_size) { |
| 216 | dimm = &mem_info->dimm[dimm_cnt]; |
| 217 | dimm->dimm_size = dimm_size; |
| 218 | dimm->ddr_type = MEMORY_TYPE_DDR3; |
| 219 | dimm->ddr_frequency = ddr_frequency; |
| 220 | dimm->rank_per_dimm = 1 + ((ch_conf >> (17 + d_num)) & 1); |
| 221 | dimm->channel_num = ch; |
| 222 | dimm->dimm_num = d_num; |
| 223 | dimm->bank_locator = ch * 2; |
| 224 | memcpy(dimm->serial, |
| 225 | &pei_data->spd_data[dimm_cnt][SPD_DIMM_SERIAL_NUM], |
| 226 | SPD_DIMM_SERIAL_LEN); |
| 227 | memcpy(dimm->module_part_number, |
| 228 | &pei_data->spd_data[dimm_cnt][SPD_DIMM_PART_NUM], |
| 229 | SPD_DIMM_PART_LEN); |
| 230 | dimm->mod_id = |
| 231 | (pei_data->spd_data[dimm_cnt][SPD_DIMM_MOD_ID2] << 8) | |
| 232 | (pei_data->spd_data[dimm_cnt][SPD_DIMM_MOD_ID1] & 0xFF); |
| 233 | dimm->mod_type = SPD_SODIMM; |
| 234 | dimm->bus_width = 0x3; /* 64-bit */ |
| 235 | dimm_cnt++; |
| 236 | } |
| 237 | } |
| 238 | } |
| 239 | mem_info->dimm_cnt = dimm_cnt; |
| 240 | } |