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/*
* This file is part of the coreboot project.
*
* Copyright (C) 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.
*/
#include <stdint.h>
#include <device/pci_ids.h>
#include <arch/io.h>
#include "Platform.h"
#include "sb_cimx.h"
#include "sb700_cfg.h" /*sb700_cimx_config*/
#include <console/console.h>
#include <console/loglevel.h>
#include "smbus.h"
/**
* @brief Get SouthBridge device number
* @param[in] bus target bus number
* @return southbridge device number
*/
u32 get_sbdn(u32 bus)
{
device_t dev;
printk(BIOS_SPEW, "SB700 - Early.c - %s - Start.\n", __func__);
dev = pci_locate_device_on_bus(
PCI_ID(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SB700_SM),
bus);
printk(BIOS_SPEW, "SB700 - Early.c - %s - End.\n", __func__);
return (dev >> 15) & 0x1f;
}
/**
* @brief Enable A-Link Express Configuration DMA Access.
*/
/**
* @brief South Bridge CIMx romstage entry,
* wrapper of sbPowerOnInit entry point.
*/
void sb_Poweron_Init(void)
{
AMDSBCFG sb_early_cfg;
printk(BIOS_SPEW, "cimx/sb700 early.c, %s() Start:\n", __func__);
/* Enable A-Link Base Address */
//sb_enable_alink ();
sb700_cimx_config(&sb_early_cfg);
sbPowerOnInit(&sb_early_cfg);
printk(BIOS_SPEW, "cimx/sb700 early.c, %s() End\n", __func__);
}
void sb7xx_51xx_enable_wideio(u8 wio_index, u16 base)
{
/* TODO: Now assume wio_index=0 */
device_t dev;
u8 reg8;
//dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0); /* LPC Controller */
dev = PCI_DEV(0, 0x14, 3); /* LPC Controller */
pci_write_config32(dev, 0x64, base);
reg8 = pci_read_config8(dev, 0x48);
reg8 |= 1 << 2;
pci_write_config8(dev, 0x48, reg8);
}
void sb7xx_51xx_disable_wideio(u8 wio_index)
{
/* TODO: Now assume wio_index=0 */
device_t dev;
u8 reg8;
//dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0); /* LPC Controller */
dev = PCI_DEV(0, 0x14, 3); /* LPC Controller */
pci_write_config32(dev, 0x64, 0);
reg8 = pci_read_config8(dev, 0x48);
reg8 &= ~(1 << 2);
pci_write_config8(dev, 0x48, reg8);
}
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