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-rw-r--r--src/mainboard/google/peppy/devicetree.cb6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mainboard/google/peppy/devicetree.cb b/src/mainboard/google/peppy/devicetree.cb
index b19f04bf88..4c0d02d662 100644
--- a/src/mainboard/google/peppy/devicetree.cb
+++ b/src/mainboard/google/peppy/devicetree.cb
@@ -78,6 +78,12 @@ chip northbridge/intel/haswell
register "sio_i2c0_voltage" = "0" # 3.3V
register "sio_i2c1_voltage" = "0" # 3.3V
+ # Force enable ASPM for PCIe Port1
+ register "pcie_port_force_aspm" = "0x01"
+
+ # Disable PCIe CLKOUT 2-5 and CLKOUT_XDP
+ register "icc_clock_disable" = "0x013c0000"
+
device pci 13.0 off end # Smart Sound Audio DSP
device pci 14.0 on end # USB3 XHCI
device pci 15.0 on end # Serial I/O DMA