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-rw-r--r--src/mainboard/amd/olivehillplus/agesawrapper.c2
-rw-r--r--src/mainboard/amd/olivehillplus/devicetree.cb3
2 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/amd/olivehillplus/agesawrapper.c b/src/mainboard/amd/olivehillplus/agesawrapper.c
index fb38b6a518..0cc2ebecf8 100644
--- a/src/mainboard/amd/olivehillplus/agesawrapper.c
+++ b/src/mainboard/amd/olivehillplus/agesawrapper.c
@@ -278,6 +278,8 @@ AGESA_STATUS agesawrapper_amdinitenv(void)
status = AmdCreateStruct (&AmdParamStruct);
EnvParam = (AMD_ENV_PARAMS *)AmdParamStruct.NewStructPtr;
+ EnvParam->GnbEnvConfiguration.IommuSupport = FALSE;
+
status = AmdInitEnv (EnvParam);
if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(EnvParam->StdHeader.HeapStatus);
/* Initialize Subordinate Bus Number and Secondary Bus Number
diff --git a/src/mainboard/amd/olivehillplus/devicetree.cb b/src/mainboard/amd/olivehillplus/devicetree.cb
index 3c5e38f4cd..65f7ee4577 100644
--- a/src/mainboard/amd/olivehillplus/devicetree.cb
+++ b/src/mainboard/amd/olivehillplus/devicetree.cb
@@ -29,6 +29,7 @@ chip northbridge/amd/pi/00730F01/root_complex
chip northbridge/amd/pi/00730F01 # PCI side of HT root complex
device pci 0.0 on end # Root Complex
+ device pci 0.2 off end # IOMMU
device pci 1.0 on end # Internal Graphics P2P bridge 0x9804
device pci 1.1 on end # Internal Multimedia
device pci 2.0 on end # PCIe Host Bridge
@@ -37,6 +38,7 @@ chip northbridge/amd/pi/00730F01/root_complex
device pci 2.3 on end # Realtek NIC
device pci 2.4 on end # Edge Connector
device pci 2.5 on end # Edge Connector
+ device pci 8.0 on end # Platform Security Processor
end #chip northbridge/amd/pi/00730F01
chip southbridge/amd/pi/avalon # it is under NB/SB Link, but on the same pci bus
@@ -57,6 +59,7 @@ chip northbridge/amd/pi/00730F01/root_complex
device pci 14.2 on end # HDA 0x4383
device pci 14.3 on end # LPC 0x439d
device pci 14.7 on end # SD
+ device pci 16.0 on end # USB
end #chip southbridge/amd/pi/avalon
device pci 18.0 on end