[coreboot] [commit] r5277 - trunk/src/cpu/amd/model_10xxx
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svn at coreboot.org
Tue Mar 23 16:58:30 CET 2010
Author: oxygene
Date: Tue Mar 23 16:58:29 2010
New Revision: 5277
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5277
Log:
Fix reading HT link offsets.
pci_read_config32 overwrites the real value, use another variable for that.
Signed-off-by: Maximilian Thuermer <maximilian.thuermer at ziti.uni-heidelberg.de>
Acked-by: Patrick Georgi <patrick.georgi at coresystems.de>
Modified:
trunk/src/cpu/amd/model_10xxx/init_cpus.c
Modified: trunk/src/cpu/amd/model_10xxx/init_cpus.c
==============================================================================
--- trunk/src/cpu/amd/model_10xxx/init_cpus.c Tue Mar 23 16:53:38 2010 (r5276)
+++ trunk/src/cpu/amd/model_10xxx/init_cpus.c Tue Mar 23 16:58:29 2010 (r5277)
@@ -702,25 +702,27 @@
*/
BOOL AMD_CpuFindCapability (u8 node, u8 cap_count, u8 *offset)
{
+ u32 reg;
u32 val;
/* get start of CPU HT Host Capabilities */
val = pci_read_config32(NODE_PCI(node, 0), 0x34);
- val &= 0xFF;
+ val &= 0xFF; //reg offset of first link
cap_count++;
/* Traverse through the capabilities. */
do {
- val = pci_read_config32(NODE_PCI(node, 0), val);
+ reg = pci_read_config32(NODE_PCI(node, 0), val);
/* Is the capability block a HyperTransport capability block? */
- if ((val & 0xFF) == 0x08) {
+ if ((reg & 0xFF) == 0x08) {
/* Is the HT capability block an HT Host Capability? */
- if ((val & 0xE0000000) == (1 << 29))
+ if ((reg & 0xE0000000) == (1 << 29))
cap_count--;
}
- if (cap_count)
- val = (val >> 8) & 0xFF;
+
+ if(cap_count)
+ val = (reg >> 8) & 0xFF; //update reg offset
} while (cap_count && val);
*offset = (u8) val;
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