romstage.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <console/console.h>
#include <romstage_handoff.h>
#include <southbridge/intel/common/pmclib.h>
#include <arch/romstage.h>
 
#if CONFIG(SOUTHBRIDGE_INTEL_I82801JX)
#include <southbridge/intel/i82801jx/i82801jx.h>
#elif CONFIG(SOUTHBRIDGE_INTEL_I82801GX)
#include <southbridge/intel/i82801gx/i82801gx.h>
#endif
 
#include "raminit.h"
#include "x4x.h"
 
__weak void mb_pre_raminit_setup(int s3_resume)
{
}
 
void mainboard_romstage_entry(void)
{
        u8 spd_addr_map[4] = {};
        u8 boot_path = 0;
        u8 s3_resume;
 
#if CONFIG(SOUTHBRIDGE_INTEL_I82801JX)
        i82801jx_early_init();
#elif CONFIG(SOUTHBRIDGE_INTEL_I82801GX)
        i82801gx_early_init();
#endif
 
        x4x_early_init();
 
        s3_resume = southbridge_detect_s3_resume();
        mb_pre_raminit_setup(s3_resume);
 
        if (s3_resume)
                boot_path = BOOT_PATH_RESUME;
        if (mchbar_read32(PMSTS_MCHBAR) & PMSTS_WARM_RESET)
                boot_path = BOOT_PATH_WARM_RESET;
 
        mb_get_spd_map(spd_addr_map);
        sdram_initialize(boot_path, spd_addr_map);
 
        x4x_late_init();
        printk(BIOS_DEBUG, "x4x late init complete\n");
 
        romstage_handoff_init(s3_resume);
}