2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <console/console.h>
21 #include <device/device.h>
22 #include <device/pci.h>
23 #include <device/pci_ids.h>
24 #include <device/pci_ops.h>
28 #define CHANEN (1L << 1)
29 #define PWB (1L << 14)
30 #define CABLE (1L << 16)
35 static void ide_init(struct device *dev)
39 printk_spew("cs5536_ide: %s\n", __FUNCTION__);
40 /* GPIO and IRQ setup are handled in the main chipset code. */
42 // Enable the channel and Post Write Buffer
43 // NOTE: Only 32-bit writes to the data buffer are allowed when PWB is set
44 ide_cfg = pci_read_config32(dev, IDE_CFG);
45 ide_cfg |= CHANEN | PWB;
46 pci_write_config32(dev, IDE_CFG, ide_cfg);
49 static void ide_enable(struct device *dev)
52 printk_spew("cs5536_ide: %s\n", __FUNCTION__);
56 static struct device_operations ide_ops = {
57 .read_resources = pci_dev_read_resources,
58 .set_resources = pci_dev_set_resources,
59 .enable_resources = pci_dev_enable_resources,
64 static const struct pci_driver ide_driver __pci_driver = {
66 .vendor = PCI_VENDOR_ID_AMD,
67 .device = PCI_DEVICE_ID_AMD_CS5536_B0_IDE,