76 lines
2 KiB
C
76 lines
2 KiB
C
|
/*
|
||
|
|
* This file is part of the coreboot project.
|
||
|
|
*
|
||
|
|
* 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 <device/pci_ids.h>
|
||
|
|
#include <device/pci_ops.h>
|
||
|
|
#include "sb800.h"
|
||
|
|
|
||
|
|
static void ide_init(struct device *dev)
|
||
|
|
{
|
||
|
|
struct southbridge_amd_sb800_config *conf;
|
||
|
|
/* Enable ide devices so the linux ide driver will work */
|
||
|
|
u32 dword;
|
||
|
|
u8 byte;
|
||
|
|
|
||
|
|
conf = dev->chip_info;
|
||
|
|
|
||
|
|
/* RPR9.1 disable MSI */
|
||
|
|
/* TODO: For A14, it should set as 1. I doubt it. */
|
||
|
|
dword = pci_read_config32(dev, 0x70);
|
||
|
|
dword &= ~(1 << 16);
|
||
|
|
pci_write_config32(dev, 0x70, dword);
|
||
|
|
|
||
|
|
/* Ultra DMA mode */
|
||
|
|
/* enable UDMA */
|
||
|
|
byte = pci_read_config8(dev, 0x54);
|
||
|
|
byte |= 1 << 0;
|
||
|
|
pci_write_config8(dev, 0x54, byte);
|
||
|
|
|
||
|
|
/* Enable I/O Access&& Bus Master */
|
||
|
|
dword = pci_read_config16(dev, 0x4);
|
||
|
|
dword |= 1 << 2;
|
||
|
|
pci_write_config16(dev, 0x4, dword);
|
||
|
|
|
||
|
|
/* set ide as primary, if you want to boot from IDE, you'd better set it
|
||
|
|
* in mainboard/Config.lb */
|
||
|
|
if (conf->boot_switch_sata_ide == 1) {
|
||
|
|
byte = pci_read_config8(dev, 0xAD);
|
||
|
|
byte |= 1 << 4;
|
||
|
|
pci_write_config8(dev, 0xAD, byte);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pci_operations lops_pci = {
|
||
|
|
.set_subsystem = pci_dev_set_subsystem,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct device_operations ide_ops = {
|
||
|
|
.read_resources = pci_dev_read_resources,
|
||
|
|
.set_resources = pci_dev_set_resources,
|
||
|
|
.enable_resources = pci_dev_enable_resources,
|
||
|
|
.init = ide_init,
|
||
|
|
.scan_bus = 0,
|
||
|
|
.ops_pci = &lops_pci,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct pci_driver ide_driver __pci_driver = {
|
||
|
|
.ops = &ide_ops,
|
||
|
|
.vendor = PCI_VENDOR_ID_ATI,
|
||
|
|
.device = PCI_DEVICE_ID_ATI_SB800_IDE,
|
||
|
|
};
|