From bf6b14e4f709650e9f95846192a597bf4424040b Mon Sep 17 00:00:00 2001 From: Sowmya Aralguppe Date: Fri, 27 Feb 2026 13:33:14 +0530 Subject: [PATCH] mb/google/ocelot: Add VR_DOMAIN_IA for fast_vmode_i_trip Extend fast voltage mode configuration to IA Domain Ref=830097_WCL_PDG_SchChk_Rev1p5 BUG=b:None TEST=Build ocelot and verify that the system boots with following VR parameter [SPEW ] IccMaxItrip[0] = 152 Change-Id: Iced5cea1bed8f215602ac1455ded214fa1f72c72 Signed-off-by: Sowmya Aralguppe Reviewed-on: https://review.coreboot.org/c/coreboot/+/91450 Tested-by: build bot (Jenkins) Reviewed-by: Matt DeVillier --- .../google/ocelot/variants/baseboard/ocelot/devicetree.cb | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/mainboard/google/ocelot/variants/baseboard/ocelot/devicetree.cb b/src/mainboard/google/ocelot/variants/baseboard/ocelot/devicetree.cb index 299c770d5e..016f531e38 100644 --- a/src/mainboard/google/ocelot/variants/baseboard/ocelot/devicetree.cb +++ b/src/mainboard/google/ocelot/variants/baseboard/ocelot/devicetree.cb @@ -67,13 +67,14 @@ chip soc/intel/pantherlake # Enable Energy Reporting register "pch_pm_energy_report_enable" = "true" - # Reference: 844458 MOW WW03 + # Reference: 844458 MOW WW03, 8300097 # fast_vmode_i_trip values are derived from ICCMax with a safety margin. - # ITRIP_NOM is approximately 0.70 of ICCMax - # TODO: Update with actual i_trip values. + register "enable_fast_vmode[VR_DOMAIN_IA]" = "true" + register "cep_enable[VR_DOMAIN_IA]" = "true" register "enable_fast_vmode[VR_DOMAIN_GT]" = "true" register "cep_enable[VR_DOMAIN_GT]" = "true" register "fast_vmode_i_trip[WCL_SKU_1]" = "{ + [VR_DOMAIN_IA] = 38 * 4, [VR_DOMAIN_GT] = 25 * 4, }"