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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Tyan Computer
* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
*
* 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 "chip.h"
static void ide_init(struct device *dev)
{
struct southbridge_nvidia_ck804_config *conf;
u32 dword;
u16 word;
u8 byte;
conf = dev->chip_info;
word = pci_read_config16(dev, 0x50);
/* Ensure prefetch is disabled. */
word &= ~((1 << 15) | (1 << 13));
if (conf->ide1_enable) {
/* Enable secondary IDE interface. */
word |= (1 << 0);
printk(BIOS_DEBUG, "IDE1\t");
}
if (conf->ide0_enable) {
/* Enable primary IDE interface. */
word |= (1 << 1);
printk(BIOS_DEBUG, "IDE0\n");
}
word |= (1 << 12);
word |= (1 << 14);
pci_write_config16(dev, 0x50, word);
byte = 0x20; /* Latency: 64 --> 32 */
pci_write_config8(dev, 0xd, byte);
dword = pci_read_config32(dev, 0xf8);
dword |= 12;
pci_write_config32(dev, 0xf8, dword);
}
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 = &ck804_pci_ops,
};
static const struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_IDE,
};
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