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soc/skl/vr_config: fix GT Loadline for KBL-U/GT3 

According to the documentation[1], the Loadline in the unslased GT VR
domain should be 2 mOhms for KBL-U (2 Core, GT3 + OPC).

[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: I433036e76d456a725ab27cf57c9bc2fe01a7ace1
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35781
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Maxim Polyakov 2019-10-03 16:50:04 +03:00 committed by Patrick Georgi
parent 8595469093
commit 723591376e
1 changed files with 1 additions and 1 deletions
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2
src/soc/intel/skylake/vr_config.c
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@ -286,7 +286,7 @@ static uint16_t get_sku_ac_dc_loadline(const int domain)
}; };
if (igd_id == PCI_DEVICE_ID_INTEL_SPT_LP_U_PREMIUM_HDCP22) { if (igd_id == PCI_DEVICE_ID_INTEL_SPT_LP_U_PREMIUM_HDCP22) {
loadline[VR_GT_UNSLICED] = VR_CFG_MOHMS(6); loadline[VR_GT_UNSLICED] = VR_CFG_MOHMS(2);
loadline[VR_GT_SLICED] = VR_CFG_MOHMS(6); loadline[VR_GT_SLICED] = VR_CFG_MOHMS(6);
} }