From fbb0738272cc1bad122ce473f71b57c459e5443b Mon Sep 17 00:00:00 2001 From: Jian Tong Date: Sun, 20 Jul 2025 14:54:31 +0800 Subject: [PATCH] mb/google/brox/var/lotso: Decrease cpu power limits Based on RPL 15W baseline, PL4 should set to 87W. Ref: 686872_RPL_UPH_RPL_UH_R_Power_Map_Rev2p4p1.xlsm BUG=b:404416910 TEST=emerge-brox coreboot chromeos-bootimage cbmem -c | grep PL shows PL4=87 Change-Id: Ief8c4e5b119dc334f3b469a046946f95a070b866 Signed-off-by: Jian Tong Reviewed-on: https://review.coreboot.org/c/coreboot/+/88498 Tested-by: build bot (Jenkins) Reviewed-by: Eric Lai Reviewed-by: Karthik Ramasubramanian Reviewed-by: Paul Menzel Reviewed-by: Subrata Banik --- src/mainboard/google/brox/variants/lotso/overridetree.cb | 2 +- src/mainboard/google/brox/variants/lotso/ramstage.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/mainboard/google/brox/variants/lotso/overridetree.cb b/src/mainboard/google/brox/variants/lotso/overridetree.cb index c6007b1269..f3c8107169 100644 --- a/src/mainboard/google/brox/variants/lotso/overridetree.cb +++ b/src/mainboard/google/brox/variants/lotso/overridetree.cb @@ -75,7 +75,7 @@ chip soc/intel/alderlake register "power_limits_config[RPL_P_282_242_142_15W_CORE]" = "{ .tdp_pl1_override = 15, .tdp_pl2_override = 25, - .tdp_pl4 = 114, + .tdp_pl4 = 87, }" device domain 0 on diff --git a/src/mainboard/google/brox/variants/lotso/ramstage.c b/src/mainboard/google/brox/variants/lotso/ramstage.c index 80276607be..d8de83fb08 100644 --- a/src/mainboard/google/brox/variants/lotso/ramstage.c +++ b/src/mainboard/google/brox/variants/lotso/ramstage.c @@ -19,7 +19,7 @@ const struct cpu_power_limits performance_efficient_limits[] = { .pl1_max_power = 15000, .pl2_min_power = 25000, .pl2_max_power = 25000, - .pl4_power = 114000 + .pl4_power = 87000 }, { .mchid = PCI_DID_INTEL_RPL_P_ID_4, @@ -28,7 +28,7 @@ const struct cpu_power_limits performance_efficient_limits[] = { .pl1_max_power = 15000, .pl2_min_power = 25000, .pl2_max_power = 25000, - .pl4_power = 114000 + .pl4_power = 87000 }, };