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authorJohn Zhao <john.zhao@intel.com>2020-06-18 00:25:51 -0700
committerPatrick Georgi <pgeorgi@google.com>2020-06-22 12:24:20 +0000
commit2c807ff6fe085b645d6da42a0472f2c31d19ec29 (patch)
treecd6d483987d066cd43af153b35f567b3433a7d71
parent2dcca0f924f9c4aa230c27808f772623b4cea061 (diff)
downloadcoreboot-2c807ff6fe085b645d6da42a0472f2c31d19ec29.tar.xz
mb/google/volteer: Disable D3Cold for TCSS along with pass through mode
The pass through mode (SW CM) RTD3 is not supported until QS platform. D3Cold is needed to be disabled along with upstream TBT firmware signed_TGL_HR_4C_A0_rev6_pre4_SW_CM_PM_support_ENG_VER_perst_check_fix. This temporary patch will need to be reverted once PM RTD3 support is validated on QS platform. BUG=b:159050315 TEST=Verfiy PM S0ix along with upstream TBT firmware. Signed-off-by: John Zhao <john.zhao@intel.com> Change-Id: I98ed991e4185abf1f3168e33b099e0e97c9075f6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42504 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Divya Sasidharan <divya.s.sasidharan@intel.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/mainboard/google/volteer/variants/baseboard/devicetree.cb2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index f2e427f0bb..9732aa84a4 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -159,7 +159,7 @@ chip soc/intel/tigerlake
# D3Hot and D3Cold for TCSS
register "TcssD3HotEnable" = "1"
- register "TcssD3ColdEnable" = "1"
+ register "TcssD3ColdEnable" = "0"
# DP port
register "DdiPortAConfig" = "1" # eDP