/* * 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. */ #include <string.h> #include <arch/acpi.h> #include <cbmem.h> #include <console/console.h> #include <console/streams.h> #include <cpu/x86/tsc.h> #include <program_loading.h> #include <rmodule.h> #include <stage_cache.h> #include <string.h> #include <soc/pei_data.h> #include <soc/pei_wrapper.h> #include <soc/pm.h> #include <soc/ramstage.h> static pei_wrapper_entry_t load_refcode_from_cache(void) { struct prog refcode; printk(BIOS_DEBUG, "refcode loading from cache.\n"); stage_cache_load_stage(STAGE_REFCODE, &refcode); return (pei_wrapper_entry_t)prog_entry(&refcode); } static pei_wrapper_entry_t load_reference_code(void) { struct prog prog = PROG_INIT(PROG_REFCODE, CONFIG_CBFS_PREFIX "/refcode"); struct rmod_stage_load refcode = { .cbmem_id = CBMEM_ID_REFCODE, .prog = &prog, }; if (acpi_is_wakeup_s3()) return load_refcode_from_cache(); if (prog_locate(&prog)) { printk(BIOS_DEBUG, "Couldn't locate reference code.\n"); return NULL; } if (rmodule_stage_load(&refcode)) { printk(BIOS_DEBUG, "Error loading reference code.\n"); return NULL; } /* Cache loaded reference code. */ stage_cache_add(STAGE_REFCODE, &prog); return (pei_wrapper_entry_t)prog_entry(&prog); } void broadwell_run_reference_code(void) { int ret, dummy; struct pei_data pei_data; pei_wrapper_entry_t entry; memset(&pei_data, 0, sizeof(pei_data)); mainboard_fill_pei_data(&pei_data); broadwell_fill_pei_data(&pei_data); pei_data.boot_mode = acpi_is_wakeup_s3() ? ACPI_S3 : 0; pei_data.saved_data = (void *) &dummy; entry = load_reference_code(); if (entry == NULL) { printk(BIOS_ERR, "Reference code not found\n"); return; } /* Call into reference code. */ ret = entry(&pei_data); if (ret != 0) { printk(BIOS_ERR, "Reference code returned %d\n", ret); return; } }