[coreboot] [patch]:Skip VC1 to fix dbm690t hanging
Bao, Zheng
Zheng.Bao at amd.com
Fri Jun 5 11:17:55 CEST 2009
After I modify the pci_ext_read_config32 and pci_ext_read_config32, the
step 6a
starts to play its role. Then the system hangs at HDA init. I dont know
what the
VC1 is. The RPR says "Optional Features (only needed if CMOS option is
enabled)"
in 5.10.2. Before I know what it is, I think it is better to skip it.
Tested on dbm690t.
Signed-off-by: Zheng Bao <zheng.bao at amd.com>
--------------------
Index: src/southbridge/amd/rs690/rs690_pcie.c
===================================================================
--- src/southbridge/amd/rs690/rs690_pcie.c (revision 4338)
+++ src/southbridge/amd/rs690/rs690_pcie.c (working copy)
@@ -276,6 +276,7 @@
/* step 6a: VCI */
sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0));
if (port == 8) {
+#if 0
/* Clear bits 7:1 */
pci_ext_write_config32(nb_dev, sb_dev, 0x114, 0x3f << 1,
0 << 1);
/* Maps Traffic Class 1-7 to VC1 */
@@ -284,7 +285,7 @@
pci_ext_write_config32(nb_dev, sb_dev, 0x120, 7 << 24, 1
<< 24);
/* Enables VC1 */
pci_ext_write_config32(nb_dev, sb_dev, 0x120, 1 << 31, 1
<< 31);
-#if 0
+
do {
reg16 = pci_ext_read_config32(nb_dev, sb_dev,
0x124);
reg16 &= 0x2;
-------------- next part --------------
A non-text attachment was scrubbed...
Name: rs690_skip_VC1.patch
Type: application/octet-stream
Size: 1147 bytes
Desc: rs690_skip_VC1.patch
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20090605/11a1eca5/attachment.obj>
More information about the coreboot
mailing list