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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 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.
*/
// Use simple device model for this file even in ramstage
#define __SIMPLE_DEVICE__
#include <stdint.h>
#include <device/pci_ids.h>
#include <arch/io.h>
#include "SbPlatform.h"
#include "sb_cimx.h"
#include <console/console.h>
#include <commonlib/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)
{
pci_devfn_t dev;
printk(BIOS_SPEW, "SB900 - Early.c - get_sbdn - Start.\n");
dev = pci_locate_device_on_bus(PCI_ID(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_ATI_SB900_SM), bus);
printk(BIOS_SPEW, "SB900 - Early.c - get_sbdn - End.\n");
return (dev >> 15) & 0x1f;
}
/**
* @brief South Bridge CIMx romstage entry,
* wrapper of sbPowerOnInit entry point.
*/
void sb_poweron_init(void)
{
AMDSBCFG sb_early_cfg;
u8 data;
printk(BIOS_SPEW, "SB900 - Early.c - sb_poweron_init - Start.\n");
//Enable/Disable PCI Bridge Device 14 Function 4.
outb(0xEA, 0xCD6);
data = inb(0xCD7);
data &= !BIT0;
if (!CONFIG_PCIB_ENABLE) {
data |= BIT0;
}
outb(data, 0xCD7);
SbPowerOnInit_Config(&sb_early_cfg);
//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
//AmdSbDispatcher(&sb_early_cfg);
//TODO
//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
// VerifyImage() will fail, LocateImage() takes minutes to find the image.
sbPowerOnInit(&sb_early_cfg);
printk(BIOS_SPEW, "SB900 - Early.c - sb_poweron_init - End.\n");
}
/**
* @brief South Bridge CIMx romstage entry,
* wrapper of sbPowerOnInit entry point.
*/
void sb_before_pci_init(void)
{
AMDSBCFG sb_early_cfg;
printk(BIOS_SPEW, "SB900 - Early.c - sb_before_pci_init - Start.\n");
sb900_cimx_config(&sb_early_cfg);
//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
//AmdSbDispatcher(&sb_early_cfg);
//TODO
//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
// VerifyImage() will fail, LocateImage() takes minutes to find the image.
sbBeforePciInit(&sb_early_cfg);
printk(BIOS_SPEW, "SB900 - Early.c - sb_before_pci_init - End.\n");
}
void sb_After_Pci_Init(void)
{
#if !CONFIG_BOARD_AMD_DINAR
AMDSBCFG sb_early_cfg;
printk(BIOS_SPEW, "SB900 - Early.c - sb_After_Pci_Init - Start.\n");
sb900_cimx_config(&sb_early_cfg);
//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
//AmdSbDispatcher(&sb_early_cfg);
//TODO
//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
// VerifyImage() will fail, LocateImage() takes minutes to find the image.
sbAfterPciInit(&sb_early_cfg);
printk(BIOS_SPEW, "SB900 - Early.c - sb_After_Pci_Init - End.\n");
#endif
}
void sb_Mid_Post_Init(void)
{
AMDSBCFG sb_early_cfg;
printk(BIOS_SPEW, "SB900 - Early.c - sb_Mid_Post_Init - Start.\n");
sb900_cimx_config(&sb_early_cfg);
//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
//AmdSbDispatcher(&sb_early_cfg);
//TODO
//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
// VerifyImage() will fail, LocateImage() takes minutes to find the image.
sbMidPostInit(&sb_early_cfg);
printk(BIOS_SPEW, "SB900 - Early.c - sb_Mid_Post_Init - End.\n");
}
void sb_Late_Post(void)
{
#if !CONFIG_BOARD_AMD_DINAR
AMDSBCFG sb_early_cfg;
u8 data;
printk(BIOS_SPEW, "SB900 - Early.c - sb_Late_Post - Start.\n");
sb900_cimx_config(&sb_early_cfg);
//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
//AmdSbDispatcher(&sb_early_cfg);
//TODO
//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
// VerifyImage() will fail, LocateImage() takes minutes to find the image.
sbLatePost(&sb_early_cfg);
//Set ACPI SCI IRQ to 0x9.
data = CONFIG_ACPI_SCI_IRQ;
outb(0x10, 0xC00);
outb(data, 0xC01);
outb(0x90, 0xC00);
outb(data, 0xC01);
if (data > 0x7) {
data = inb(0x4D1);
data |= (1 << (CONFIG_ACPI_SCI_IRQ - 8));
outb(data, 0x4D1);
} else {
data = inb(0x4D0);
data |= (1 << (CONFIG_ACPI_SCI_IRQ));
outb(data, 0x4D0);
}
printk(BIOS_SPEW, "SB900 - Early.c - sb_Late_Post - End.\n");
#endif
}
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