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/* 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,
};
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