From 418bc919d0e6e1b2b2688dd6f61fe6a378454017 Mon Sep 17 00:00:00 2001 From: Rudolf Marek Date: Tue, 30 Oct 2007 03:09:39 +0000 Subject: Add support for the VIA VT8237R southbridge. Signed-off-by: Rudolf Marek Acked-by: Acked-by: Uwe Hermann git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2907 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/via/vt8237r/vt8237r_sata.c | 58 ++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/southbridge/via/vt8237r/vt8237r_sata.c (limited to 'src/southbridge/via/vt8237r/vt8237r_sata.c') diff --git a/src/southbridge/via/vt8237r/vt8237r_sata.c b/src/southbridge/via/vt8237r/vt8237r_sata.c new file mode 100644 index 0000000000..fb54b5ca39 --- /dev/null +++ b/src/southbridge/via/vt8237r/vt8237r_sata.c @@ -0,0 +1,58 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 Rudolf Marek + * + * 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 +#include +#include +#include +#include + +#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 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 struct pci_driver northbridge_driver __pci_driver = { + .ops = &sata_ops, + .vendor = PCI_VENDOR_ID_VIA, + .device = PCI_DEVICE_ID_VIA_VT6420_SATA, +}; -- cgit v1.2.3