erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

falco: Disable unused clocks

Browse source 
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 <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/65251
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2013-08-08 15:33:34 -07:00 • committed by ChromeBot
commit 4fc1624ce8
1 changed files with 3 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/mainboard/google/falco/devicetree.cb
View file

@ -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