From 4fc1624ce868febfdb91efdc53665679c0916d5d Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Thu, 8 Aug 2013 15:33:34 -0700 Subject: [PATCH] falco: Disable unused clocks CLKOUT for PCIE ports 1-5 and CLKOUT_XDP are not used and can be disabled. BUG=chrome-os-partner:21775 BRANCH=falco TEST=manual: I couldn't test this directly without a scope so instead I used a modified commit that also disabled PCIe Port 0 and saw that that correctly disabled the WLAN port. Change-Id: I0f996e90f0ae42780de3a0c8dc5db00ec600748b Signed-off-by: Duncan Laurie Reviewed-on: https://gerrit.chromium.org/gerrit/65251 Reviewed-by: Aaron Durbin --- src/mainboard/google/falco/devicetree.cb | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/mainboard/google/falco/devicetree.cb b/src/mainboard/google/falco/devicetree.cb index b490d12a41..82fc513f28 100644 --- a/src/mainboard/google/falco/devicetree.cb +++ b/src/mainboard/google/falco/devicetree.cb @@ -74,6 +74,9 @@ chip northbridge/intel/haswell register "sio_i2c0_voltage" = "0" # 3.3V register "sio_i2c1_voltage" = "0" # 3.3V + # Disable PCIe CLKOUT 1-5 and CLKOUT_XDP + register "icc_clock_disable" = "0x013e0000" + 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