bootblock.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <stdint.h>
#include <amdblocks/cpu.h>
#include <bootblock_common.h>
#include <console/console.h>
#include <cpu/x86/tsc.h>
#include <soc/psp_transfer.h>
#include <soc/southbridge.h>
#include <amdblocks/amd_pci_mmconf.h>
 
asmlinkage void bootblock_c_entry(uint64_t base_timestamp)
{
        early_cache_setup();
        write_resume_eip();
        enable_pci_mmconf();
 
        /*
         * base_timestamp is raw tsc value. We need to divide by tsc_freq_mhz
         * when we use micro-seconds granularity for Zork
         */
        base_timestamp /= tsc_freq_mhz();
 
        if (CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK))
                boot_with_psp_timestamp(base_timestamp);
 
        /*
         * if VBOOT_STARTS_BEFORE_BOOTBLOCK is not selected or
         * previous step did nothing, proceed with normal bootblock main.
         */
        bootblock_main_with_basetime(base_timestamp);
}
 
void bootblock_soc_early_init(void)
{
        fch_pre_init();
}
 
void bootblock_soc_init(void)
{
        u32 val = cpuid_eax(1);
        printk(BIOS_DEBUG, "Family_Model: %08x\n", val);
 
        if (CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) {
                verify_psp_transfer_buf();
                show_psp_transfer_info();
        }
 
        fch_early_init();
}