From 9f7e018f0f5875fce167a75325ee08969672411c Mon Sep 17 00:00:00 2001 From: Werner Zeh Date: Wed, 3 Nov 2021 11:44:43 +0100 Subject: [PATCH] mb/siemens/mc_ehl: Disable PMC low power modes All the mainboard variants of mc_ehl do not use the external switches for the bypass rails. Disable the matching UPDs and all the low power modes of the PMC. Change-Id: I08f4effe5c4d5845bed01dfe1bd1251c58012b7f Signed-off-by: Werner Zeh Reviewed-on: https://review.coreboot.org/c/coreboot/+/58895 Reviewed-by: Mario Scheithauer Reviewed-by: Lean Sheng Tan Tested-by: build bot (Jenkins) --- src/mainboard/siemens/mc_ehl/mainboard.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mainboard/siemens/mc_ehl/mainboard.c b/src/mainboard/siemens/mc_ehl/mainboard.c index fc03115a8e..5c8f5849df 100644 --- a/src/mainboard/siemens/mc_ehl/mainboard.c +++ b/src/mainboard/siemens/mc_ehl/mainboard.c @@ -125,6 +125,11 @@ void mainboard_silicon_init_params(FSP_S_CONFIG *params) /* Disable P-States */ params->MaxRatio = 0; + + /* Disable PMC low power modes */ + params->PmcLpmS0ixSubStateEnableMask = 0; + params->PmcV1p05PhyExtFetControlEn = 0; + params->PmcV1p05IsExtFetControlEn = 0; } static void mainboard_init(void *chip_info)