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-rw-r--r--src/mainboard/google/dedede/variants/baseboard/devicetree.cb33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
index 44d9ca2e3b..2a0b760728 100644
--- a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
@@ -19,6 +19,39 @@ chip soc/intel/tigerlake
register "pmc_gpe0_dw1" = "GPP_D"
register "pmc_gpe0_dw2" = "GPP_H"
+ register "SerialIoI2cMode" = "{
+ [PchSerialIoIndexI2C0] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C1] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C2] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C3] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C4] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C5] = PchSerialIoDisabled,
+ }"
+
+ register "SerialIoGSpiMode" = "{
+ [PchSerialIoIndexGSPI0] = PchSerialIoDisabled,
+ [PchSerialIoIndexGSPI1] = PchSerialIoDisabled,
+ [PchSerialIoIndexGSPI2] = PchSerialIoDisabled,
+ }"
+
+ register "SerialIoGSpiCsMode" = "{
+ [PchSerialIoIndexGSPI0] = 0,
+ [PchSerialIoIndexGSPI1] = 0,
+ [PchSerialIoIndexGSPI2] = 0,
+ }"
+
+ register "SerialIoGSpiCsState" = "{
+ [PchSerialIoIndexGSPI0] = 0,
+ [PchSerialIoIndexGSPI1] = 0,
+ [PchSerialIoIndexGSPI2] = 0,
+ }"
+
+ register "SerialIoUartMode" = "{
+ [PchSerialIoIndexUART0] = PchSerialIoDisabled,
+ [PchSerialIoIndexUART1] = PchSerialIoDisabled,
+ [PchSerialIoIndexUART2] = PchSerialIoDisabled,
+ }"
+
device domain 0 on
device pci 00.0 off end # Host Bridge
device pci 02.0 off end # Integrated Graphics Device