[coreboot-gerrit] New patch to review for coreboot: 92812fa falco: Disable unused clocks
Stefan Reinauer (stefan.reinauer@coreboot.org)
gerrit at coreboot.org
Tue Dec 3 23:56:56 CET 2013
Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4451
-gerrit
commit 92812fa87f02ab5a5968ab888a90d56541bd51dd
Author: Duncan Laurie <dlaurie at chromium.org>
Date: Thu Aug 8 15:33:34 2013 -0700
falco: Disable unused clocks
CLKOUT for PCIE ports 1-5 and CLKOUT_XDP are not used
and can be disabled.
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 <dlaurie at chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/65251
Reviewed-by: Aaron Durbin <adurbin at chromium.org>
---
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 b490d12..82fc513 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
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