Limit the device field to 5 bits.
The field device in PCI_ADDRESS only takes 5 bits. So if the device number is
more than 32, it will truncated to 5 bits. Before this patch, other pci devices
will be incorrectly probed as processor node.
Change-Id: I64dcd4f4fda7b7080a9905dce580feb829584b94
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/1264
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 9a31751..7f8650c 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -120,8 +120,8 @@
static device_t get_node_pci(u32 nodeid, u32 fn)
{
-#if MAX_NODE_NUMS == 64
- if (nodeid < 32) {
+#if MAX_NODE_NUMS + CONFIG_CDB >= 32
+ if ((CONFIG_CDB + nodeid) < 32) {
return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
} else {
return dev_find_slot(CONFIG_CBB-1, PCI_DEVFN(CONFIG_CDB + nodeid - 32, fn));