ac12c66cf9
As there can be more than one source of firmware assets this patch generalizes the notion of locating a particular asset. struct asset is added along with some helper functions for working on assets as a first class citizen. Change-Id: I2ce575d1e5259aed4c34c3dcfd438abe9db1d7b9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/10264 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2013 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <string.h>
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#include <arch/acpi.h>
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#include <cbmem.h>
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#include <console/console.h>
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#include <console/streams.h>
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#include <cpu/x86/tsc.h>
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#include <program_loading.h>
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#include <rmodule.h>
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#include <stage_cache.h>
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#include <soc/ramstage.h>
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#include <soc/efi_wrapper.h>
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static void ABI_X86 send_to_console(unsigned char b)
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{
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console_tx_byte(b);
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}
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static efi_wrapper_entry_t load_refcode_from_cache(void)
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{
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struct prog refcode;
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printk(BIOS_DEBUG, "refcode loading from cache.\n");
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stage_cache_load_stage(STAGE_REFCODE, &refcode);
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return (efi_wrapper_entry_t)prog_entry(&refcode);
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}
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static efi_wrapper_entry_t load_reference_code(void)
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{
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struct prog prog =
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PROG_INIT(ASSET_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
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struct rmod_stage_load refcode = {
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.cbmem_id = CBMEM_ID_REFCODE,
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.prog = &prog,
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};
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if (acpi_is_wakeup_s3()) {
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return load_refcode_from_cache();
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}
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if (prog_locate(&prog)) {
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printk(BIOS_DEBUG, "Couldn't locate reference code.\n");
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return NULL;
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}
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if (rmodule_stage_load(&refcode)) {
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printk(BIOS_DEBUG, "Error loading reference code.\n");
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return NULL;
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}
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/* Cache loaded reference code. */
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stage_cache_add(STAGE_REFCODE, &prog);
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return prog_entry(&prog);
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}
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void baytrail_run_reference_code(void)
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{
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int ret;
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efi_wrapper_entry_t entry;
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struct efi_wrapper_params wrp = {
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.version = EFI_WRAPPER_VER,
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.console_out = send_to_console,
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};
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entry = load_reference_code();
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if (entry == NULL)
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return;
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wrp.tsc_ticks_per_microsecond = tsc_freq_mhz();
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/* Call into reference code. */
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ret = entry(&wrp);
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if (ret != 0) {
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printk(BIOS_DEBUG, "Reference code returned %d\n", ret);
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return;
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}
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}
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