2 * Copyright 2004 Tyan Computer
6 #include <console/console.h>
7 #include <device/device.h>
8 #include <device/pci.h>
9 #include <device/pci_ids.h>
10 #include <device/pci_ops.h>
13 static void ide_init(struct device *dev)
15 struct southbridge_nvidia_ck804_config *conf;
16 /* Enable ide devices so the linux ide driver will work */
20 conf = dev->chip_info;
22 word = pci_read_config16(dev, 0x50);
23 /* Ensure prefetch is disabled */
24 word &= ~((1 << 15) | (1 << 13));
25 if (conf->ide1_enable) {
26 /* Enable secondary ide interface */
28 printk_debug("IDE1 \t");
30 if (conf->ide0_enable) {
31 /* Enable primary ide interface */
33 printk_debug("IDE0\n");
39 pci_write_config16(dev, 0x50, word);
42 byte = 0x20 ; // Latency: 64-->32
43 pci_write_config8(dev, 0xd, byte);
45 dword = pci_read_config32(dev, 0xf8);
47 pci_write_config32(dev, 0xf8, dword);
48 #if CONFIG_PCI_ROM_RUN == 1
54 static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
56 pci_write_config32(dev, 0x40,
57 ((device & 0xffff) << 16) | (vendor & 0xffff));
59 static struct pci_operations lops_pci = {
60 .set_subsystem = lpci_set_subsystem,
63 static struct device_operations ide_ops = {
64 .read_resources = pci_dev_read_resources,
65 .set_resources = pci_dev_set_resources,
66 .enable_resources = pci_dev_enable_resources,
69 // .enable = ck804_enable,
73 static const struct pci_driver ide_driver __pci_driver = {
75 .vendor = PCI_VENDOR_ID_NVIDIA,
76 .device = PCI_DEVICE_ID_NVIDIA_CK804_IDE,