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mb/google/poppy/variants/rammus: fix S0ix entering issue

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As we don't use the MIPI camera on Rammus, disable SA Imaging Unit and
CIO2 devices to avoid the system failed to enter S0ix.

BUG=b:114502527
BRANCH=master
TEST=On DUT, echo freeze > /sys/power/state
     1. check the S0ix status on EC console
     2. check the value of /sys/kernel/debug/pmc_core/slp_s0_residency_usec

Change-Id: I91629732db01ee534f0ddb67a2b358d725ef810e
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://review.coreboot.org/28543
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Zhuohao Lee 2018-09-08 16:53:10 +08:00 committed by Patrick Georgi
parent f89c56a54d
commit fa61f5aa55
1 changed files with 2 additions and 2 deletions
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4
src/mainboard/google/poppy/variants/rammus/devicetree.cb
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@ -40,8 +40,8 @@ chip soc/intel/skylake
register "EnableTraceHub" = "0"
register "SsicPortEnable" = "0"
register "SmbusEnable" = "1"
register "Cio2Enable" = "1"
register "SaImguEnable" = "1"
register "Cio2Enable" = "0"
register "SaImguEnable" = "0"
register "ScsEmmcEnabled" = "1"
register "ScsEmmcHs400Enabled" = "1"
register "ScsSdCardEnabled" = "2"