src/mainboard/tyan/s8226/romstage.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <lib.h>
#include <reset.h>
#include <stdint.h>
#include <arch/io.h>
#include <arch/cpu.h>
#include <console/console.h>
#include <arch/stages.h>
#include "cpu/x86/bist.h"
#include "cpu/x86/lapic/boot_cpu.c"
#include "agesawrapper.h"
#include "northbridge/amd/agesa/family10/reset_test.h"
#include <nb_cimx.h>
#include <sb_cimx.h>
#include "superio/nuvoton/wpcm450/wpcm450.h"
#include "superio/winbond/w83627dhg/w83627dhg.h"
#include "src/drivers/pc80/i8254.c"
#include "src/drivers/pc80/i8259.c"

extern void disable_cache_as_ram(void); /* cache_as_ram.inc */

#define SERIAL_DEV PNP_DEV(0x2e, W83627DHG_SP1)
#define DUMMY_DEV PNP_DEV(0x2e, 0)

void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
{
	u32 val;

	post_code(0x30);
	agesawrapper_amdinitmmio();
	post_code(0x31);

	/* Halt if there was a built in self test failure */
	post_code(0x33);
	report_bist_failure(bist);

	sb7xx_51xx_enable_wideio(0, 0x1600); /* though UARTs are on the NUVOTON BMC */
	w83627dhg_set_clksel_48(DUMMY_DEV);
	w83627dhg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
	sb7xx_51xx_disable_wideio(0);
	post_code(0x34);

	uart_init();
	post_code(0x35);
	console_init();

	val = cpuid_eax(1);
	printk(BIOS_DEBUG, "BSP Family_Model: %08x \n", val);
	printk(BIOS_DEBUG, "cpu_init_detectedx = %08lx \n", cpu_init_detectedx);

	post_code(0x37);
	val = agesawrapper_amdinitreset();
	if (val) {
		printk(BIOS_DEBUG, "agesawrapper_amdinitreset failed: %x \n", val);
	} else {
		printk(BIOS_DEBUG, "agesawrapper_amdinitreset passed\n");
	}

	if (!cpu_init_detectedx && boot_cpu()) {
		post_code(0x38);
		/*
		 * SR5650/5670/5690 RD890 chipset, read pci config space hang at POR,
		 * Disable all Pcie Bridges to work around It.
		 */
		sr56x0_rd890_disable_pcie_bridge();
		post_code(0x39);
		nb_Poweron_Init();
		post_code(0x3A);
		sb_Poweron_Init();
	}
	post_code(0x3B);
	val = agesawrapper_amdinitearly();
	if(val) {
		printk(BIOS_DEBUG, "agesawrapper_amdinitearly failed: %x \n", val);
	} else {
		printk(BIOS_DEBUG, "agesawrapper_amdinitearly passed\n");
	}

	post_code(0x3C);
	/* W83627DHG pin89,90 function select is RSTOUT3#, RSTOUT2# by default.
	 * In order to access W83795G/ADG HWM using I2C protocol,
	 * we select function to SDA, SCL function (or GP33, GP32 function).
	 */
	w83627dhg_enable_i2c(PNP_DEV(0x2E, W83627DHG_SPI));

	nb_Ht_Init();
	post_code(0x3D);
	/* Reset for HT, FIDVID, PLL and ucode patch(errata) changes to take affect. */
	if (!warm_reset_detect(0)) {
		print_info("...WARM RESET...\n\n\n");
		distinguish_cpu_resets(0);
		soft_reset();
		die("After soft_reset_x - shouldn't see this message!!!\n");
	}

	post_code(0x40);
	val = agesawrapper_amdinitpost();
	if (val) {
		printk(BIOS_DEBUG, "agesawrapper_amdinitpost failed: %x \n", val);
	} else {
		printk(BIOS_DEBUG, "agesawrapper_amdinitpost passed\n");
	}

	post_code(0x41);
	val = agesawrapper_amdinitenv();
	if(val) {
		printk(BIOS_DEBUG, "agesawrapper_amdinitenv failed: %x \n", val);
	}
	printk(BIOS_DEBUG, "agesawrapper_amdinitenv passed\n");

	post_code(0x42);

	post_code(0x50);
	print_debug("Disabling cache as ram ");
	disable_cache_as_ram();
	print_debug("done\n");

	post_code(0x51);
	setup_i8259 ();
	setup_i8254 ();
	copy_and_run();

	/* We will not return,  Should never see this message and post code. */
	print_debug("should not be here -\n");
	post_code(0x54);
}