2d7825b0fc
Callsite declared returning int, which makes more sense than u8 the motherboard side code defined the functions with. Change-Id: I8ee83aa2833408ad163c9011a076e08578f3ca6f Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/26774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* Copyright (C) 2010 Wang Qing Pei <wangqingpei@gmail.com>
|
|
* Copyright (C) 2010 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.
|
|
*/
|
|
|
|
#include <console/console.h>
|
|
#include <device/device.h>
|
|
#include <device/pci.h>
|
|
#include <arch/io.h>
|
|
#include <cpu/x86/msr.h>
|
|
#include <cpu/amd/mtrr.h>
|
|
#include <device/pci_def.h>
|
|
#include "southbridge/amd/sb700/sb700.h"
|
|
#include "southbridge/amd/sb700/smbus.h"
|
|
#include "southbridge/amd/rs780/rs780.h"
|
|
|
|
void set_pcie_dereset(void);
|
|
void set_pcie_reset(void);
|
|
/*
|
|
* ma78gm-us2h uses GPIO 6 as PCIe slot reset, GPIO4 as GFX slot reset. We need to
|
|
* pull it up before training the slot.
|
|
***/
|
|
void set_pcie_dereset()
|
|
{
|
|
u16 word;
|
|
struct device *sm_dev;
|
|
/* GPIO 6 reset PCIe slot, GPIO 4 reset GFX PCIe */
|
|
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
|
|
|
|
word = pci_read_config16(sm_dev, 0xA8);
|
|
word |= (1 << 0) | (1 << 2); /* Set Gpio6,4 as output */
|
|
word &= ~((1 << 8) | (1 << 10));
|
|
pci_write_config16(sm_dev, 0xA8, word);
|
|
}
|
|
|
|
void set_pcie_reset()
|
|
{
|
|
u16 word;
|
|
struct device *sm_dev;
|
|
/* GPIO 6 reset PCIe slot, GPIO 4 reset GFX PCIe */
|
|
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
|
|
|
|
word = pci_read_config16(sm_dev, 0xA8);
|
|
word &= ~((1 << 0) | (1 << 2)); /* Set Gpio6,4 as output */
|
|
word &= ~((1 << 8) | (1 << 10));
|
|
pci_write_config16(sm_dev, 0xA8, word);
|
|
}
|
|
|
|
|
|
int is_dev3_present(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*************************************************
|
|
* enable the dedicated function in board.
|
|
* This function called early than rs780_enable.
|
|
*************************************************/
|
|
static void mainboard_enable(struct device *dev)
|
|
{
|
|
printk(BIOS_INFO, "Mainboard MA78GM-US2H Enable. dev=0x%p\n", dev);
|
|
|
|
set_pcie_dereset();
|
|
/* get_ide_dma66(); */
|
|
}
|
|
|
|
struct chip_operations mainboard_ops = {
|
|
.enable_dev = mainboard_enable,
|
|
};
|