sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

SI Class code check

Browse Source 
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1742 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2004-11-04 21:00:13 +00:00
parent 2d2bdd3846
commit 8085f032f8
11 changed files with 1210 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/drivers/si/3114/si_sata.c
View File

@@ -1,6 +1,6 @@
/* Copyright 2003 Tyan */
/* Copyright 2003-2004 Tyan Computer*/
/* Author: Yinghai Lu
/* Author: Yinghai Lu yhlu@tyan.com
*
*/
@@ -20,15 +20,37 @@
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_debug("Class code restored.\n");
}
printk_debug("SI_SATA_FIXUP: done \n");
}
static struct device_operations si_sata_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,