early_init.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <bootblock_common.h>
#include <southbridge/intel/i82801jx/i82801jx.h>
#include <northbridge/intel/x4x/x4x.h>
#include <superio/ite/common/ite.h>
#include <superio/ite/it8720f/it8720f.h>
 
#define GPIO_DEV PNP_DEV(0x2e, IT8720F_GPIO)
 
void bootblock_mainboard_early_init(void)
{
        /* Set up GPIOs on Super I/O. */
        ite_reg_write(GPIO_DEV, 0x25, 0x00); // GPIO set 1
        ite_reg_write(GPIO_DEV, 0x26, 0x0c); // GPIO set 2
        ite_reg_write(GPIO_DEV, 0x27, 0x70); // GPIO set 3
        ite_reg_write(GPIO_DEV, 0x28, 0x40); // GPIO set 4
        ite_reg_write(GPIO_DEV, 0x29, 0x00); // GPIO set 5
 
        /* Enable 3VSB during Suspend-to-RAM */
        ite_enable_3vsbsw(GPIO_DEV);
 
        /* Delay PWROK2 after 3VSBSW# during resume from Suspend-to-RAM */
        ite_delay_pwrgd3(GPIO_DEV);
}
 
void mb_get_spd_map(u8 spd_map[4])
{
        spd_map[0] = 0x50;
        spd_map[1] = 0x51;
        spd_map[2] = 0x52;
        spd_map[3] = 0x53;
}