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 <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58895
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-by: Lean Sheng Tan <lean.sheng.tan@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/siemens/mc_ehl/mainboard.c b/src/mainboard/siemens/mc_ehl/mainboard.c
index fc03115..5c8f584 100644
--- a/src/mainboard/siemens/mc_ehl/mainboard.c
+++ b/src/mainboard/siemens/mc_ehl/mainboard.c
@@ -125,6 +125,11 @@
/* 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)