soc/intel/apollolake: Make usage of RAPL selectable
Apollo Lake SoC supports configuration of Running Average Power Limits
(RAPL) for package domain. This feature is not required for all APL
mainboards. According to the APL SoC EDS Vol 4 chapter 18.4 Power
Limiting Control it is not necessary to enable the RAPL algorithm per
default. For that reason make the RAPL configuration selectable.
Change-Id: Ib737b162f72b76c15e5768859f9099e2e7ef6426
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/20759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index f72173d..ec4662c 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -223,6 +223,11 @@
uint32_t tdp, min_power, max_power;
uint32_t pl2_val;
+ if (IS_ENABLED(CONFIG_APL_SKIP_SET_POWER_LIMITS)) {
+ printk(BIOS_INFO, "Skip the RAPL settings.\n");
+ return;
+ }
+
if (!dev || !dev->chip_info) {
printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
return;