c02b4fc9db
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5266 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* Copyright 2003-2004 Tyan Computer*/
|
|
|
|
/* Author: Yinghai Lu yhlu@tyan.com
|
|
*
|
|
*/
|
|
|
|
|
|
#include <delay.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <arch/io.h>
|
|
|
|
#include <console/console.h>
|
|
#include <device/device.h>
|
|
#include <device/pci.h>
|
|
#include <device/pci_ids.h>
|
|
#include <device/pci_ops.h>
|
|
|
|
|
|
static void si_sata_init(struct device *dev)
|
|
{
|
|
uint16_t word;
|
|
uint32_t dword;
|
|
#if 0
|
|
word = pci_read_config16(dev, 0x4);
|
|
word |= ((1 << 2) |(1<<4)); // Command: 3--> 17
|
|
pci_write_config16(dev, 0x4, word);
|
|
#endif
|
|
|
|
/* some driver change class code to 0x104, but not change deviceid without reason*/
|
|
/* restore it so we don't need to unplug AC power to restore it*/
|
|
|
|
word = pci_read_config16(dev, 0x0a);
|
|
if(word!=0x0180) {
|
|
/* enble change device id and class id*/
|
|
dword = pci_read_config32(dev,0x40);
|
|
dword |= (1<<0);
|
|
pci_write_config32(dev, 0x40, dword);
|
|
|
|
word = 0x0180;
|
|
pci_write_config16(dev, 0x0a, word);
|
|
|
|
/* disable change device id and class id*/
|
|
dword = pci_read_config32(dev,0x40);
|
|
dword &= ~(1<<0);
|
|
pci_write_config32(dev, 0x40, dword);
|
|
|
|
printk(BIOS_DEBUG, "Class code restored.\n");
|
|
|
|
}
|
|
|
|
|
|
}
|
|
static struct device_operations si_sata_ops = {
|
|
.read_resources = pci_dev_read_resources,
|
|
.set_resources = pci_dev_set_resources,
|
|
.enable_resources = pci_dev_enable_resources,
|
|
.init = si_sata_init,
|
|
.scan_bus = 0,
|
|
};
|
|
|
|
static const struct pci_driver si_sata_driver __pci_driver = {
|
|
.ops = &si_sata_ops,
|
|
.vendor = 0x1095,
|
|
.device = 0x3114,
|
|
};
|
|
|