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. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <console/console.h> |
Kyösti Mälkki | 5687fc9 | 2013-11-28 18:11:49 +0200 | [diff] [blame] | 21 | #include <bootmode.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 22 | #include <string.h> |
| 23 | #include <arch/hlt.h> |
| 24 | #include <arch/io.h> |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 25 | #include <cbmem.h> |
| 26 | #include <arch/cbfs.h> |
| 27 | #include <cbfs.h> |
| 28 | #include <ip_checksum.h> |
| 29 | #include <pc80/mc146818rtc.h> |
| 30 | #include <device/pci_def.h> |
| 31 | #include "raminit.h" |
| 32 | #include "pei_data.h" |
| 33 | #include "haswell.h" |
| 34 | |
Aaron Durbin | 2ad1dba | 2013-02-07 00:51:18 -0600 | [diff] [blame] | 35 | void save_mrc_data(struct pei_data *pei_data) |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 36 | { |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 37 | struct mrc_data_container *mrcdata; |
| 38 | int output_len = ALIGN(pei_data->mrc_output_len, 16); |
| 39 | |
| 40 | /* Save the MRC S3 restore data to cbmem */ |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 41 | mrcdata = cbmem_add |
| 42 | (CBMEM_ID_MRCDATA, |
| 43 | output_len + sizeof(struct mrc_data_container)); |
| 44 | |
| 45 | printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n", |
| 46 | pei_data->mrc_output, mrcdata, output_len); |
| 47 | |
| 48 | mrcdata->mrc_signature = MRC_DATA_SIGNATURE; |
| 49 | mrcdata->mrc_data_size = output_len; |
| 50 | mrcdata->reserved = 0; |
| 51 | memcpy(mrcdata->mrc_data, pei_data->mrc_output, |
| 52 | pei_data->mrc_output_len); |
| 53 | |
| 54 | /* Zero the unused space in aligned buffer. */ |
| 55 | if (output_len > pei_data->mrc_output_len) |
| 56 | memset(mrcdata->mrc_data+pei_data->mrc_output_len, 0, |
| 57 | output_len - pei_data->mrc_output_len); |
| 58 | |
| 59 | mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data, |
| 60 | mrcdata->mrc_data_size); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | static void prepare_mrc_cache(struct pei_data *pei_data) |
| 64 | { |
| 65 | struct mrc_data_container *mrc_cache; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 66 | |
| 67 | // preset just in case there is an error |
| 68 | pei_data->mrc_input = NULL; |
| 69 | pei_data->mrc_input_len = 0; |
| 70 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 71 | if ((mrc_cache = find_current_mrc_cache()) == NULL) { |
| 72 | /* error message printed in find_current_mrc_cache */ |
| 73 | return; |
| 74 | } |
| 75 | |
| 76 | pei_data->mrc_input = mrc_cache->mrc_data; |
| 77 | pei_data->mrc_input_len = mrc_cache->mrc_data_size; |
| 78 | |
| 79 | printk(BIOS_DEBUG, "%s: at %p, size %x checksum %04x\n", |
| 80 | __func__, pei_data->mrc_input, |
| 81 | pei_data->mrc_input_len, mrc_cache->mrc_checksum); |
| 82 | } |
| 83 | |
| 84 | static const char* ecc_decoder[] = { |
| 85 | "inactive", |
| 86 | "active on IO", |
| 87 | "disabled on IO", |
| 88 | "active" |
| 89 | }; |
| 90 | |
| 91 | /* |
| 92 | * Dump in the log memory controller configuration as read from the memory |
| 93 | * controller registers. |
| 94 | */ |
| 95 | static void report_memory_config(void) |
| 96 | { |
| 97 | u32 addr_decoder_common, addr_decode_ch[2]; |
| 98 | int i; |
| 99 | |
| 100 | addr_decoder_common = MCHBAR32(0x5000); |
| 101 | addr_decode_ch[0] = MCHBAR32(0x5004); |
| 102 | addr_decode_ch[1] = MCHBAR32(0x5008); |
| 103 | |
| 104 | printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", |
| 105 | (MCHBAR32(0x5e04) * 13333 * 2 + 50)/100); |
| 106 | printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", |
| 107 | addr_decoder_common & 3, |
| 108 | (addr_decoder_common >> 2) & 3, |
| 109 | (addr_decoder_common >> 4) & 3); |
| 110 | |
| 111 | for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { |
| 112 | u32 ch_conf = addr_decode_ch[i]; |
| 113 | printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", |
| 114 | i, ch_conf); |
| 115 | printk(BIOS_DEBUG, " ECC %s\n", |
| 116 | ecc_decoder[(ch_conf >> 24) & 3]); |
| 117 | printk(BIOS_DEBUG, " enhanced interleave mode %s\n", |
| 118 | ((ch_conf >> 22) & 1) ? "on" : "off"); |
| 119 | printk(BIOS_DEBUG, " rank interleave %s\n", |
| 120 | ((ch_conf >> 21) & 1) ? "on" : "off"); |
| 121 | printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n", |
| 122 | ((ch_conf >> 0) & 0xff) * 256, |
| 123 | ((ch_conf >> 19) & 1) ? 16 : 8, |
| 124 | ((ch_conf >> 17) & 1) ? "dual" : "single", |
| 125 | ((ch_conf >> 16) & 1) ? "" : ", selected"); |
| 126 | printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n", |
| 127 | ((ch_conf >> 8) & 0xff) * 256, |
| 128 | ((ch_conf >> 20) & 1) ? 16 : 8, |
| 129 | ((ch_conf >> 18) & 1) ? "dual" : "single", |
| 130 | ((ch_conf >> 16) & 1) ? ", selected" : ""); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Find PEI executable in coreboot filesystem and execute it. |
| 136 | * |
| 137 | * @param pei_data: configuration data for UEFI PEI reference code |
| 138 | */ |
| 139 | void sdram_initialize(struct pei_data *pei_data) |
| 140 | { |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 141 | unsigned long entry; |
| 142 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 143 | printk(BIOS_DEBUG, "Starting UEFI PEI System Agent\n"); |
| 144 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 145 | /* |
| 146 | * Do not pass MRC data in for recovery mode boot, |
| 147 | * Always pass it in for S3 resume. |
| 148 | */ |
| 149 | if (!recovery_mode_enabled() || pei_data->boot_mode == 2) |
| 150 | prepare_mrc_cache(pei_data); |
| 151 | |
| 152 | /* If MRC data is not found we cannot continue S3 resume. */ |
| 153 | if (pei_data->boot_mode == 2 && !pei_data->mrc_input) { |
Duncan Laurie | 727b545 | 2013-08-08 16:28:41 -0700 | [diff] [blame] | 154 | post_code(POST_RESUME_FAILURE); |
| 155 | printk(BIOS_DEBUG, "Giving up in sdram_initialize: " |
| 156 | "No MRC data\n"); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 157 | outb(0x6, 0xcf9); |
| 158 | while(1) { |
| 159 | hlt(); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | /* Pass console handler in pei_data */ |
Kyösti Mälkki | 657e0be | 2014-02-04 19:03:57 +0200 | [diff] [blame] | 164 | pei_data->tx_byte = do_putchar; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 165 | |
| 166 | /* Locate and call UEFI System Agent binary. */ |
| 167 | entry = (unsigned long)cbfs_get_file_content( |
Vladimir Serbinenko | 0af61b6 | 2014-01-12 13:45:52 +0100 | [diff] [blame] | 168 | CBFS_DEFAULT_MEDIA, "mrc.bin", 0xab, NULL); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 169 | if (entry) { |
| 170 | int rv; |
| 171 | asm volatile ( |
| 172 | "call *%%ecx\n\t" |
| 173 | :"=a" (rv) : "c" (entry), "a" (pei_data)); |
| 174 | if (rv) { |
| 175 | switch (rv) { |
| 176 | case -1: |
| 177 | printk(BIOS_ERR, "PEI version mismatch.\n"); |
| 178 | break; |
| 179 | case -2: |
| 180 | printk(BIOS_ERR, "Invalid memory frequency.\n"); |
| 181 | break; |
| 182 | default: |
| 183 | printk(BIOS_ERR, "MRC returned %x.\n", rv); |
| 184 | } |
| 185 | die("Nonzero MRC return value.\n"); |
| 186 | } |
| 187 | } else { |
| 188 | die("UEFI PEI System Agent not found.\n"); |
| 189 | } |
| 190 | |
| 191 | /* For reference print the System Agent version |
| 192 | * after executing the UEFI PEI stage. |
| 193 | */ |
| 194 | u32 version = MCHBAR32(0x5034); |
| 195 | printk(BIOS_DEBUG, "System Agent Version %d.%d.%d Build %d\n", |
| 196 | version >> 24 , (version >> 16) & 0xff, |
| 197 | (version >> 8) & 0xff, version & 0xff); |
| 198 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 199 | report_memory_config(); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 200 | } |