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Fix reading HT link offsets. 

pci_read_config32 overwrites the real value, use another variable for that.

Signed-off-by: Maximilian Thuermer <maximilian.thuermer@ziti.uni-heidelberg.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5277 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Maximilian Thuermer 2010-03-23 15:58:29 +00:00 committed by Patrick Georgi
parent 86051f919f
commit cadefaf20f
1 changed files with 8 additions and 6 deletions
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14
src/cpu/amd/model_10xxx/init_cpus.c
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@ -702,25 +702,27 @@ void AMD_SetupPSIVID_d (u32 platform_type, u8 node)
*/ */
BOOL AMD_CpuFindCapability (u8 node, u8 cap_count, u8 *offset) BOOL AMD_CpuFindCapability (u8 node, u8 cap_count, u8 *offset)
{ {
u32 reg;
u32 val; u32 val;
/* get start of CPU HT Host Capabilities */ /* get start of CPU HT Host Capabilities */
val = pci_read_config32(NODE_PCI(node, 0), 0x34); val = pci_read_config32(NODE_PCI(node, 0), 0x34);
val &= 0xFF; val &= 0xFF; //reg offset of first link
cap_count++; cap_count++;
/* Traverse through the capabilities. */ /* Traverse through the capabilities. */
do { 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? */ /* 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? */ /* Is the HT capability block an HT Host Capability? */
if ((val & 0xE0000000) == (1 << 29)) if ((reg & 0xE0000000) == (1 << 29))
cap_count--; cap_count--;
} }
if (cap_count)
val = (val >> 8) & 0xFF; if(cap_count)
val = (reg >> 8) & 0xFF; //update reg offset
} while (cap_count && val); } while (cap_count && val);
*offset = (u8) val; *offset = (u8) val;