From 9d68cb214488b4f3f7f2bd74c30d674318db4252 Mon Sep 17 00:00:00 2001 From: Maxim Polyakov Date: Thu, 3 Oct 2019 17:07:21 +0300 Subject: soc/skl/vr_config: fix KBL-U GT3 detection bug Some VR parameter values for KBL-U with GT3 graphics are different from values for other CPUs in this series [1]. However, GT3 iGPU will never be detected, since the igd_id variable is compared with the LPC device PCI ID. The patch fixes this bug. [1] page 109, 7th Generation Intel(R) Processor Families for U/Y Platforms and 8th Generation Intel(R) Processor Family for U Quad Core and Y Dual Core Platforms. Datasheet, Volume 1. January 2019. Document Number: 334661-006 Change-Id: I33527d90550a1de78c9375d3d3b0e046787a559b Signed-off-by: Maxim Polyakov Reviewed-on: https://review.coreboot.org/c/coreboot/+/35782 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph --- src/soc/intel/skylake/vr_config.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/soc/intel/skylake/vr_config.c b/src/soc/intel/skylake/vr_config.c index de5ad2ca5c..121a344114 100644 --- a/src/soc/intel/skylake/vr_config.c +++ b/src/soc/intel/skylake/vr_config.c @@ -213,7 +213,8 @@ static uint16_t get_sku_icc_max(int domain) VR_CFG_AMP(31), }; - if (igd_id == PCI_DEVICE_ID_INTEL_SPT_LP_U_BASE_HDCP22) + if ((igd_id == PCI_DEVICE_ID_INTEL_KBL_GT3E_SULTM_1) || + (igd_id == PCI_DEVICE_ID_INTEL_KBL_GT3E_SULTM_2)) icc_max[VR_IA_CORE] = VR_CFG_AMP(29); return icc_max[domain]; @@ -285,7 +286,8 @@ static uint16_t get_sku_ac_dc_loadline(const int domain) VR_CFG_MOHMS(3.1), }; - if (igd_id == PCI_DEVICE_ID_INTEL_SPT_LP_U_PREMIUM_HDCP22) { + if ((igd_id == PCI_DEVICE_ID_INTEL_KBL_GT3E_SULTM_1) || + (igd_id == PCI_DEVICE_ID_INTEL_KBL_GT3E_SULTM_2)) { loadline[VR_GT_UNSLICED] = VR_CFG_MOHMS(2); loadline[VR_GT_SLICED] = VR_CFG_MOHMS(6); } -- cgit v1.2.3