diff options
author | Rudolf Marek <r.marek@assembler.cz> | 2007-10-30 03:09:39 +0000 |
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committer | Uwe Hermann <uwe@hermann-uwe.de> | 2007-10-30 03:09:39 +0000 |
commit | 418bc919d0e6e1b2b2688dd6f61fe6a378454017 (patch) | |
tree | 30054a10efa2ba1cb96b13e84dc7080daa8bdf22 /src/southbridge/via/vt8237r/vt8237r_sata.c | |
parent | af6e745173cc3b4eb7ec39fa05df59cdf513fb8e (diff) |
Add support for the VIA VT8237R southbridge.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: <corey.osgood@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2907 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/via/vt8237r/vt8237r_sata.c')
-rw-r--r-- | src/southbridge/via/vt8237r/vt8237r_sata.c | 58 |
1 files changed, 58 insertions, 0 deletions
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 <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_ops.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 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, +}; |