summaryrefslogtreecommitdiff
path: root/src/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/amd/model_10xxx/init_cpus.c37
1 files changed, 20 insertions, 17 deletions
diff --git a/src/cpu/amd/model_10xxx/init_cpus.c b/src/cpu/amd/model_10xxx/init_cpus.c
index 2b08b61791..92eb2de0c8 100644
--- a/src/cpu/amd/model_10xxx/init_cpus.c
+++ b/src/cpu/amd/model_10xxx/init_cpus.c
@@ -719,11 +719,13 @@ BOOL AMD_CpuFindCapability (u8 node, u8 cap_count, u8 *offset)
do {
val = pci_read_config32(NODE_PCI(node, 0), val);
/* Is the capability block a HyperTransport capability block? */
- if ((val & 0xFF) == 0x08)
+ if ((val & 0xFF) == 0x08) {
/* Is the HT capability block an HT Host Capability? */
if ((val & 0xE0000000) == (1 << 29))
cap_count--;
- val = (val >> 8) & 0xFF;
+ }
+ if (cap_count)
+ val = (val >> 8) & 0xFF;
} while (cap_count && val);
*offset = (u8) val;
@@ -745,9 +747,9 @@ BOOL AMD_CpuFindCapability (u8 node, u8 cap_count, u8 *offset)
u32 AMD_checkLinkType (u8 node, u8 link, u8 regoff)
{
u32 val;
- u32 linktype;
+ u32 linktype = 0;
- /* Check coherency */
+ /* Check connect, init and coherency */
val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x18);
val &= 0x1F;
@@ -757,23 +759,24 @@ u32 AMD_checkLinkType (u8 node, u8 link, u8 regoff)
if (val == 7)
linktype |= HTPHY_LINKTYPE_NONCOHERENT;
- /* Check gen3 */
- val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08);
+ if (linktype) {
+ /* Check gen3 */
+ val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08);
- if (((val >> 8) & 0x0F) > 6)
- linktype |= HTPHY_LINKTYPE_HT3;
- else
- linktype |= HTPHY_LINKTYPE_HT1;
+ if (((val >> 8) & 0x0F) > 6)
+ linktype |= HTPHY_LINKTYPE_HT3;
+ else
+ linktype |= HTPHY_LINKTYPE_HT1;
- /* Check ganged */
- val = pci_read_config32(NODE_PCI(node, 0), (link << 2) + 0x170);
-
- if ( val & 1)
- linktype |= HTPHY_LINKTYPE_GANGED;
- else
- linktype |= HTPHY_LINKTYPE_UNGANGED;
+ /* Check ganged */
+ val = pci_read_config32(NODE_PCI(node, 0), (link << 2) + 0x170);
+ if ( val & 1)
+ linktype |= HTPHY_LINKTYPE_GANGED;
+ else
+ linktype |= HTPHY_LINKTYPE_UNGANGED;
+ }
return linktype;
}