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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 VIA Technologies, Inc.
* (Written by Aaron Lwe <aaron.lwe@gmail.com> for VIA)
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*/
#define ASSEMBLY 1
#define __PRE_RAM__
#include <stdint.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
#include <arch/hlt.h>
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "lib/ramtest.c"
#include "northbridge/via/cn400/raminit.h"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include "pc80/udelay_io.c"
#include "lib/delay.c"
#include "cpu/x86/lapic/boot_cpu.c"
#include "southbridge/via/vt8237r/vt8237r_early_smbus.c"
#include "superio/winbond/w83697hf/w83697hf_early_serial.c"
#define SERIAL_DEV PNP_DEV(0x2e, W83697HF_SP1)
/*
* NOOB ::
* d0f0 - Device 0 Function 0 etc.
*/
static const struct mem_controller ctrl = {
.d0f0 = 0x0000,
.d0f2 = 0x2000,
.d0f3 = 0x3000,
.d0f4 = 0x4000,
.d0f7 = 0x7000,
.d1f0 = 0x8000,
.channel0 = { 0x50 },
};
static void memreset_setup(void)
{
}
static inline int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
#include "northbridge/via/cn400/raminit.c"
static void enable_mainboard_devices(void)
{
device_t dev;
u8 reg;
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT8237R_LPC), 0);
if (dev == PCI_DEV_INVALID)
die("Southbridge not found!!!\n");
/* bit=0 means enable function (per VT8237R datasheet)
* 7 17.6 MC97
* 6 17.5 AC97
* 5 16.1 USB 2
* 4 16.0 USB 1
* 3 15.0 SATA and PATA
* 2 16.2 USB 3
* 1 16.4 USB EHCI
*/
pci_write_config8(dev, 0x50, 0xC0);
/*bit=0 means enable internal function (per VT8237R datasheet)
* 7 USB Device Mode
*bit=1 means enable internal function (per VT8237R datasheet)
* 6 Reserved
* 5 LAN Controller Clock Gating
* 4 LAN Controller
* 3 Internal RTC
* 2 Internal PS2 Mouse
* 1 Internal KBC Configuration
* 0 Internal Keyboard Controller
*/
pci_write_config8(dev, 0x51, 0x9d);
}
static void enable_shadow_ram(void)
{
unsigned char shadowreg;
shadowreg = pci_read_config8(ctrl.d0f3, 0x82);
/* 0xf0000-0xfffff Read/Write*/
shadowreg |= 0x30;
pci_write_config8(ctrl.d0f3, 0x82, shadowreg);
}
static void main(unsigned long bist)
{
unsigned long x;
device_t dev;
/* Enable multifunction for northbridge. */
pci_write_config8(ctrl.d0f0, 0x4f, 0x01);
w83697hf_set_clksel_48(SERIAL_DEV);
w83697hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
uart_init();
console_init();
print_spew("In auto.c:main()\r\n");
enable_smbus();
smbus_fixup(&ctrl);
/* Halt if there was a built-in self test failure. */
report_bist_failure(bist);
print_debug("Enabling mainboard devices\r\n");
enable_mainboard_devices();
print_debug("Enable F-ROM Shadow RAM\r\n");
enable_shadow_ram();
/* setup cpu */
print_debug("Setup CPU Interface\r\n");
c3_cpu_setup(ctrl.d0f2);
ddr_ram_setup();
if (bist == 0) {
print_debug("doing early_mtrr\r\n");
early_mtrr_init();
}
//ram_check(0, 640 * 1024);
print_spew("Leaving auto.c:main()\r\n");
}
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