| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License v2 as published by |
| * the Free Software Foundation. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| |
| #define SATA_MISC_CTRL 0x45 |
| |
| static void sata_init(struct device *dev) |
| { |
| u8 reg; |
| |
| printk_debug("Configuring VIA SATA controller\n"); |
| |
| /* Class IDE Disk */ |
| reg = pci_read_config8(dev, SATA_MISC_CTRL); |
| reg &= 0x7f; /* Sub Class Write Protect off */ |
| pci_write_config8(dev, SATA_MISC_CTRL, reg); |
| |
| /* Change the device class to SATA from RAID. */ |
| pci_write_config8(dev, PCI_CLASS_DEVICE, 0x1); |
| reg |= 0x80; /* Sub Class Write Protect on */ |
| pci_write_config8(dev, SATA_MISC_CTRL, reg); |
| } |
| |
| static const struct device_operations sata_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sata_init, |
| .enable = 0, |
| .ops_pci = 0, |
| }; |
| |
| static const struct pci_driver northbridge_driver __pci_driver = { |
| .ops = &sata_ops, |
| .vendor = PCI_VENDOR_ID_VIA, |
| .device = PCI_DEVICE_ID_VIA_VT6420_SATA, |
| }; |