diff --git a/src/mainboard/google/zork/variants/baseboard/dalboz/devicetree.cb b/src/mainboard/google/zork/variants/baseboard/dalboz/devicetree.cb
index e8b73ca900..4af7231eb9 100644
--- a/src/mainboard/google/zork/variants/baseboard/dalboz/devicetree.cb
+++ b/src/mainboard/google/zork/variants/baseboard/dalboz/devicetree.cb
@@ -344,6 +344,7 @@ chip soc/amd/picasso
 			device ref hda off end # HDA
 			device ref mp2 on end # non-Sensor Fusion Hub device
 		end
+		device ref internal_bridge_b off end # internal bridge to bus B
 		device ref lpc_bridge on
 			chip ec/google/chromeec
 				device pnp 0c09.0 alias cros_ec on
diff --git a/src/mainboard/google/zork/variants/baseboard/trembyle/devicetree.cb b/src/mainboard/google/zork/variants/baseboard/trembyle/devicetree.cb
index d6f2136c81..9b5a4c05db 100644
--- a/src/mainboard/google/zork/variants/baseboard/trembyle/devicetree.cb
+++ b/src/mainboard/google/zork/variants/baseboard/trembyle/devicetree.cb
@@ -370,6 +370,7 @@ chip soc/amd/picasso
 			device ref hda off end # HDA
 			device ref mp2 on end # non-Sensor Fusion Hub device
 		end
+		device ref internal_bridge_b off end # internal bridge to bus B
 		device ref lpc_bridge on
 			chip ec/google/chromeec
 				device pnp 0c09.0 alias cros_ec on
diff --git a/src/soc/amd/picasso/chipset.cb b/src/soc/amd/picasso/chipset.cb
index c11d502f16..a254ceacb5 100644
--- a/src/soc/amd/picasso/chipset.cb
+++ b/src/soc/amd/picasso/chipset.cb
@@ -17,7 +17,7 @@ chip soc/amd/picasso
 		device pci 01.6 alias gpp_bridge_5 off ops amd_external_pcie_gpp_ops end
 		device pci 01.7 alias gpp_bridge_6 off ops amd_external_pcie_gpp_ops end
 		device pci 08.0 on end # Dummy device function, do not disable
-		device pci 08.1 alias internal_bridge_a off  # internal bridge to bus A
+		device pci 08.1 alias internal_bridge_a on  # internal bridge to bus A
 			ops amd_internal_pcie_gpp_ops
 			device pci 0.0 alias gfx off ops amd_graphics_ops end # internal GPU
 			device pci 0.1 alias gfx_hda off end # display HD Audio controller
@@ -32,7 +32,7 @@ chip soc/amd/picasso
 			device pci 0.6 alias hda off end # main HD Audio Controller
 			device pci 0.7 alias mp2 off end # sensor fusion hub (MP2)
 		end
-		device pci 08.2 alias internal_bridge_b off # internal bridge to bus B
+		device pci 08.2 alias internal_bridge_b on # internal bridge to bus B
 			ops amd_internal_pcie_gpp_ops
 			device pci 0.0 alias sata off ops amd_sata_ops end
 			device pci 0.1 alias xgbe_0 off end