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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2010 coresystems GmbH
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2014 Vladimir Serbinenko
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdint.h>
#include <string.h>
#include <console/console.h>
#include <arch/io.h>
#include <lib.h>
#include <cpu/x86/lapic.h>
#include <timestamp.h>
#include "sandybridge.h"
#include <cpu/x86/bist.h>
#include <cpu/intel/romstage.h>
#include <device/pci_def.h>
#include <device/device.h>
#include <halt.h>
#include <security/tpm/tis.h>
#include <northbridge/intel/sandybridge/chip.h>
#include "southbridge/intel/bd82x6x/pch.h"
#include <southbridge/intel/common/gpio.h>
static void early_pch_init(void)
{
u8 reg8;
// reset rtc power status
reg8 = pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3);
reg8 &= ~(1 << 2);
pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3, reg8);
}
/* Platform has no romstage entry point under mainboard directory,
* so this one is named with prefix mainboard.
*/
void mainboard_romstage_entry(unsigned long bist)
{
int s3resume = 0;
if (MCHBAR16(SSKPD) == 0xCAFE) {
outb(0x6, 0xcf9);
halt ();
}
timestamp_init(get_initial_timestamp());
timestamp_add_now(TS_START_ROMSTAGE);
if (bist == 0)
enable_lapic();
pch_enable_lpc();
/* Enable GPIOs */
pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1);
pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);
setup_pch_gpios(&mainboard_gpio_map);
/* Initialize superio */
mainboard_config_superio();
/* USB is initialized in MRC if MRC is used. */
if (CONFIG_USE_NATIVE_RAMINIT) {
early_usb_init(mainboard_usb_ports);
}
/* Initialize console device(s) */
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
/* Perform some early chipset initialization required
* before RAM initialization can work
*/
sandybridge_early_initialization(SANDYBRIDGE_MOBILE);
printk(BIOS_DEBUG, "Back from sandybridge_early_initialization()\n");
s3resume = southbridge_detect_s3_resume();
post_code(0x38);
mainboard_early_init(s3resume);
/* Enable SPD ROMs and DDR-III DRAM */
enable_smbus();
post_code(0x39);
perform_raminit(s3resume);
timestamp_add_now(TS_AFTER_INITRAM);
post_code(0x3b);
/* Perform some initialization that must run before stage2 */
early_pch_init();
post_code(0x3c);
southbridge_configure_default_intmap();
southbridge_rcba_config();
mainboard_rcba_config();
post_code(0x3d);
northbridge_romstage_finalize(s3resume);
if (IS_ENABLED(CONFIG_LPC_TPM)) {
init_tpm(s3resume);
}
post_code(0x3f);
}
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