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mb/siemens/mc_ehl: Disable all P-States 

In order to get a reliable real-time performance disable all P-States
for all mc_ehl based mainboard.

Change-Id: I22857cc0f1476483ca82c1c872e4519e4b350ea9
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <lean.sheng.tan@intel.com>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
This commit is contained in:
Werner Zeh 2021-11-03 10:37:57 +01:00 committed by Patrick Georgi
parent 2d04693640
commit 9916eb400f
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/siemens/mc_ehl/mainboard.c
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@ -122,6 +122,9 @@ void mainboard_silicon_init_params(FSP_S_CONFIG *params)
/* Set maximum package C-state to PkgC0C1 */ /* Set maximum package C-state to PkgC0C1 */
params->PkgCStateLimit = 0; params->PkgCStateLimit = 0;
/* Disable P-States */
params->MaxRatio = 0;
} }
static void mainboard_init(void *chip_info) static void mainboard_init(void *chip_info)