mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 18:28:55 +00:00
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <init.h>
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#include <log.h>
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#include <malloc.h>
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#include <rtc.h>
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#include <acpi/acpi_s3.h>
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#include <asm/cmos_layout.h>
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#include <asm/early_cmos.h>
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#include <asm/io.h>
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#include <asm/mrccache.h>
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#include <asm/post.h>
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#include <asm/processor.h>
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#include <asm/fsp1/fsp_support.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void *fsp_prepare_mrc_cache(void)
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{
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struct mrc_data_container *cache;
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struct mrc_region entry;
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int ret;
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ret = mrccache_get_region(MRC_TYPE_NORMAL, NULL, &entry);
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if (ret)
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return NULL;
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cache = mrccache_find_current(&entry);
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if (!cache)
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return NULL;
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debug("%s: mrc cache at %p, size %x checksum %04x\n", __func__,
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cache->data, cache->data_size, cache->checksum);
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return cache->data;
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}
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int arch_fsp_init(void)
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{
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void *nvs;
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int stack = CONFIG_FSP_TEMP_RAM_ADDR;
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int boot_mode = BOOT_FULL_CONFIG;
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#ifdef CONFIG_HAVE_ACPI_RESUME
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int prev_sleep_state = chipset_prev_sleep_state();
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gd->arch.prev_sleep_state = prev_sleep_state;
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#endif
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if (!gd->arch.hob_list) {
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if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
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nvs = fsp_prepare_mrc_cache();
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else
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nvs = NULL;
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#ifdef CONFIG_HAVE_ACPI_RESUME
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if (prev_sleep_state == ACPI_S3) {
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if (nvs == NULL) {
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/* If waking from S3 and no cache then */
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debug("No MRC cache found in S3 resume path\n");
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post_code(POST_RESUME_FAILURE);
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/* Clear Sleep Type */
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chipset_clear_sleep_state();
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/* Reboot */
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debug("Rebooting..\n");
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outb(SYS_RST | RST_CPU, IO_PORT_RESET);
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/* Should not reach here.. */
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panic("Reboot System");
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}
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/*
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* DM is not available yet at this point, hence call
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* CMOS access library which does not depend on DM.
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*/
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stack = cmos_read32(CMOS_FSP_STACK_ADDR);
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boot_mode = BOOT_ON_S3_RESUME;
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}
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#endif
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/*
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* The first time we enter here, call fsp_init().
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* Note the execution does not return to this function,
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* instead it jumps to fsp_continue().
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*/
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fsp_init(stack, boot_mode, nvs);
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} else {
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/*
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* The second time we enter here, adjust the size of malloc()
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* pool before relocation. Given gd->malloc_base was adjusted
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* after the call to board_init_f_init_reserve() in arch/x86/
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* cpu/start.S, we should fix up gd->malloc_limit here.
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*/
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gd->malloc_limit += CONFIG_FSP_SYS_MALLOC_F_LEN;
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}
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return 0;
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}
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