| /* |
| * 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, |
| }; |