diff options
Diffstat (limited to 'src/soc/intel/skylake/romstage/raminit.c')
| -rw-r--r-- | src/soc/intel/skylake/romstage/raminit.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/romstage/raminit.c b/src/soc/intel/skylake/romstage/raminit.c new file mode 100644 index 0000000000..52ea49100d --- /dev/null +++ b/src/soc/intel/skylake/romstage/raminit.c @@ -0,0 +1,138 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/cbfs.h> +#include <arch/io.h> +#include <cbfs.h> +#include <cbmem.h> +#include <console/console.h> +#include <device/pci_def.h> +#include <lib.h> +#include <string.h> +#if CONFIG_EC_GOOGLE_CHROMEEC +#include <ec/google/chromeec/ec.h> +#include <ec/google/chromeec/ec_commands.h> +#endif +#include <stage_cache.h> +#include <vendorcode/google/chromeos/chromeos.h> +#include <soc/intel/common/mrc_cache.h> +#include <soc/iomap.h> +#include <soc/pei_data.h> +#include <soc/pei_wrapper.h> +#include <soc/pm.h> +#include <soc/reset.h> +#include <soc/romstage.h> +#include <soc/smm.h> +#include <soc/systemagent.h> + +/* + * Find PEI executable in coreboot filesystem and execute it. + */ +void raminit(struct pei_data *pei_data) +{ + const struct mrc_saved_data *cache; + struct memory_info* mem_info; + pei_wrapper_entry_t entry; + int ret; + + broadwell_fill_pei_data(pei_data); + + if (recovery_mode_enabled()) { + /* Recovery mode does not use MRC cache */ + printk(BIOS_DEBUG, "Recovery mode: not using MRC cache.\n"); + } else if (!mrc_cache_get_current(&cache)) { + /* MRC cache found */ + pei_data->saved_data_size = cache->size; + pei_data->saved_data = &cache->data[0]; + } else if (pei_data->boot_mode == SLEEP_STATE_S3) { + /* Waking from S3 and no cache. */ + printk(BIOS_DEBUG, "No MRC cache found in S3 resume path.\n"); + post_code(POST_RESUME_FAILURE); + reset_system(); + } else { + printk(BIOS_DEBUG, "No MRC cache found.\n"); +#if CONFIG_EC_GOOGLE_CHROMEEC + if (pei_data->boot_mode == SLEEP_STATE_S0) { + /* Ensure EC is running RO firmware. */ + google_chromeec_check_ec_image(EC_IMAGE_RO); + } +#endif + } + + /* + * Do not use saved pei data. Can be set by mainboard romstage + * to force a full train of memory on every boot. + */ + if (pei_data->disable_saved_data) { + printk(BIOS_DEBUG, "Disabling PEI saved data by request\n"); + pei_data->saved_data = NULL; + pei_data->saved_data_size = 0; + } + + /* Determine if mrc.bin is in the cbfs. */ + entry = (pei_wrapper_entry_t)cbfs_get_file_content( + CBFS_DEFAULT_MEDIA, "mrc.bin", CBFS_TYPE_MRC, NULL); + if (entry == NULL) { + printk(BIOS_DEBUG, "Couldn't find mrc.bin\n"); + return; + } + + printk(BIOS_DEBUG, "Starting Memory Reference Code\n"); + + ret = entry(pei_data); + if (ret < 0) + die("pei_data version mismatch\n"); + + /* Print the MRC version after executing the UEFI PEI stage. */ + u32 version = MCHBAR32(MCHBAR_PEI_VERSION); + printk(BIOS_DEBUG, "MRC Version %d.%d.%d Build %d\n", + version >> 24 , (version >> 16) & 0xff, + (version >> 8) & 0xff, version & 0xff); + + report_memory_config(); + + /* Basic memory sanity test */ + quick_ram_check(); + + if (pei_data->boot_mode != SLEEP_STATE_S3) { + cbmem_initialize_empty(); + stage_cache_create_empty(); + } else { + stage_cache_recover(); + if (cbmem_initialize()) { +#if CONFIG_HAVE_ACPI_RESUME + printk(BIOS_DEBUG, "Failed to recover CBMEM in S3 resume.\n"); + /* Failed S3 resume, reset to come up cleanly */ + reset_system(); +#endif + } + } + + printk(BIOS_DEBUG, "MRC data at %p %d bytes\n", pei_data->data_to_save, + pei_data->data_to_save_size); + + if (pei_data->data_to_save != NULL && pei_data->data_to_save_size > 0) + mrc_cache_stash_data(pei_data->data_to_save, + pei_data->data_to_save_size); + + printk(BIOS_DEBUG, "create cbmem for dimm information\n"); + mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(struct memory_info)); + memcpy(mem_info, &pei_data->meminfo, sizeof(struct memory_info)); + +} |