From a7773d3ab3d1edceb12c017a4b0edffe517bc652 Mon Sep 17 00:00:00 2001 From: WeiHuaLin Date: Wed, 11 Mar 2026 11:01:59 +0800 Subject: [PATCH] mb/google/fatcat: Modifying parameters for AC only MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In the "AC only" scenario, since the adapter is 65W, the values of PL2 and PL4 need to be reduced to prevent the machine from shutting down. BUG=b:487170924 TEST=emerge-fatcat coreboot, test pass by power engineer Change-Id: Id0b1f886205f26a5171f21ae43a9360791e0979b Signed-off-by: WeiHuaLin Reviewed-on: https://review.coreboot.org/c/coreboot/+/91646 Reviewed-by: Weimin Wu Reviewed-by: Jérémy Compostella Reviewed-by: Subrata Banik Tested-by: build bot (Jenkins) --- .../variants/baseboard/fatcat/ramstage.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/src/mainboard/google/fatcat/variants/baseboard/fatcat/ramstage.c b/src/mainboard/google/fatcat/variants/baseboard/fatcat/ramstage.c index 224dda7443..5745dd1efc 100644 --- a/src/mainboard/google/fatcat/variants/baseboard/fatcat/ramstage.c +++ b/src/mainboard/google/fatcat/variants/baseboard/fatcat/ramstage.c @@ -18,9 +18,9 @@ #define COMMON_PTL_U_POWER_LIMITS \ .pl1_min_power = 10000, \ .pl1_max_power = 15000, \ - .pl2_min_power = 50000, \ - .pl2_max_power = 50000, \ - .pl4_power = 65000 + .pl2_min_power = 25000, \ + .pl2_max_power = 25000, \ + .pl4_power = 25000 const struct cpu_tdp_power_limits power_optimized_limits[] = { { .mch_id = PCI_DID_INTEL_PTL_H_ID_1, @@ -88,6 +88,18 @@ const struct cpu_tdp_power_limits power_optimized_limits[] = { .power_limits_index = PTL_CORE_2, COMMON_PTL_U_POWER_LIMITS }, + { + .mch_id = PCI_DID_INTEL_PTL_U_ID_1, + .cpu_tdp = TDP_25W, + .power_limits_index = PTL_CORE_1, + COMMON_PTL_U_POWER_LIMITS + }, + { + .mch_id = PCI_DID_INTEL_PTL_U_ID_2, + .cpu_tdp = TDP_25W, + .power_limits_index = PTL_CORE_2, + COMMON_PTL_U_POWER_LIMITS + }, }; /*