2 * This file is part of the coreboot project.
4 * Copyright (C) 2004 Tyan Computer
5 * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
6 * Copyright (C) 2006,2007 AMD
7 * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #include <console/console.h>
25 #include <device/device.h>
26 #include <device/pci.h>
27 #include <device/pci_ids.h>
28 #include <device/pci_ops.h>
31 static void ide_init(struct device *dev)
33 struct southbridge_nvidia_mcp55_config *conf;
34 /* Enable ide devices so the linux ide driver will work */
38 conf = dev->chip_info;
40 word = pci_read_config16(dev, 0x50);
41 /* Ensure prefetch is disabled */
42 word &= ~((1 << 15) | (1 << 13));
43 if (conf->ide1_enable) {
44 /* Enable secondary ide interface */
46 printk(BIOS_DEBUG, "IDE1 \t");
48 if (conf->ide0_enable) {
49 /* Enable primary ide interface */
51 printk(BIOS_DEBUG, "IDE0\n");
57 pci_write_config16(dev, 0x50, word);
60 byte = 0x20 ; // Latency: 64-->32
61 pci_write_config8(dev, 0xd, byte);
63 dword = pci_read_config32(dev, 0xf8);
65 pci_write_config32(dev, 0xf8, dword);
66 #if CONFIG_PCI_ROM_RUN == 1
72 static struct device_operations ide_ops = {
73 .read_resources = pci_dev_read_resources,
74 .set_resources = pci_dev_set_resources,
75 .enable_resources = pci_dev_enable_resources,
78 // .enable = mcp55_enable,
79 .ops_pci = &mcp55_pci_ops,
82 static const struct pci_driver ide_driver __pci_driver = {
84 .vendor = PCI_VENDOR_ID_NVIDIA,
85 .device = PCI_DEVICE_ID_NVIDIA_MCP55_IDE,