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mb/msi/ms7d25: Disable DMI ASPM 

Disable DMI link ASPM which can degrade performance of overall system.
Desktop does not need to be concerned that much about idle power
consumption.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I60af9d2ab2913db449059e1e007999fa2f307f5d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69826
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michał Żygowski 2022-11-18 17:33:45 +01:00 committed by Martin L Roth
parent 1f17ba5563
commit cd3a99eaf9
2 changed files with 5 additions and 0 deletions
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3
src/mainboard/msi/ms7d25/mainboard.c
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@ -78,6 +78,9 @@ void mainboard_silicon_init_params(FSP_S_CONFIG *params)
params->PcieRpFunctionSwap = 0;
params->CpuPcieRpFunctionSwap = 0;
params->PchLegacyIoLowLatency = 1;
params->PchDmiAspmCtrl = 0;
params->CpuPcieRpPmSci[0] = 1; // M2_1
params->CpuPcieRpPmSci[1] = 1; // PCI_E1
params->PcieRpPmSci[0] = 1; // PCI_E2

2
src/mainboard/msi/ms7d25/romstage_fsp_params.c
View File

@ -55,6 +55,8 @@ void mainboard_memory_init_params(FSPM_UPD *memupd)
memupd->FspmConfig.CpuPcieRpClockReqMsgEnable[1] = 1;
memupd->FspmConfig.CpuPcieRpClockReqMsgEnable[2] = 0;
memupd->FspmConfig.DmiMaxLinkSpeed = 4; // Gen4 speed, undocumented
memupd->FspmConfig.DmiAspm = 0;
memupd->FspmConfig.DmiAspmCtrl = 0;
memupd->FspmConfig.SkipExtGfxScan = 0;
memupd->FspmConfig.PchHdaSdiEnable[0] = 1;