[coreboot-gerrit] Patch set updated for coreboot: bf4f1a1 falco: Disable unused clocks

Patrick Georgi (patrick@georgi-clan.de) gerrit at coreboot.org
Sat Dec 21 09:03:53 CET 2013


Patrick Georgi (patrick at georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4451

-gerrit

commit bf4f1a126b4282c95cd62b2824b8b60e79a2f310
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 4e75c92..3823ce7 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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