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mb/siemens/mc_ehl2: Disable PCIe RPs 

With latest hardware revision only PCIe RP2 and RP7 are used on this
mainboard.

Change-Id: I7702c2b9058dde1c819cb1df8a68fd602f5997da
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61415
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This commit is contained in:
Mario Scheithauer 2022-01-27 09:33:20 +01:00 committed by Felix Held
parent 3c965dc3ac
commit cfb044322e
1 changed files with 4 additions and 16 deletions
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20
src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
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@ -43,18 +43,15 @@ chip soc/intel/elkhartlake
register "SkipCpuReplacementCheck" = "1" register "SkipCpuReplacementCheck" = "1"
# PCIe root ports related UPDs # PCIe root ports related UPDs
register "PcieRpEnable[0]" = "1"
register "PcieRpEnable[1]" = "1" register "PcieRpEnable[1]" = "1"
register "PcieRpEnable[2]" = "1"
register "PcieRpEnable[4]" = "1"
register "PcieRpEnable[6]" = "1" register "PcieRpEnable[6]" = "1"
register "PcieClkSrcUsage[0]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[0]" = "PCIE_CLK_NOTUSED"
register "PcieClkSrcUsage[1]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[1]" = "PCIE_CLK_FREE"
register "PcieClkSrcUsage[2]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[2]" = "PCIE_CLK_NOTUSED"
register "PcieClkSrcUsage[3]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[3]" = "PCIE_CLK_NOTUSED"
register "PcieClkSrcUsage[4]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[4]" = "PCIE_CLK_FREE"
register "PcieClkSrcUsage[5]" = "PCIE_CLK_FREE" register "PcieClkSrcUsage[5]" = "PCIE_CLK_NOTUSED"
register "PcieClkSrcClkReq[0]" = "PCIE_CLK_NOTUSED" register "PcieClkSrcClkReq[0]" = "PCIE_CLK_NOTUSED"
register "PcieClkSrcClkReq[1]" = "PCIE_CLK_NOTUSED" register "PcieClkSrcClkReq[1]" = "PCIE_CLK_NOTUSED"
@ -64,17 +61,11 @@ chip soc/intel/elkhartlake
register "PcieClkSrcClkReq[5]" = "PCIE_CLK_NOTUSED" register "PcieClkSrcClkReq[5]" = "PCIE_CLK_NOTUSED"
# Disable all L1 substates for PCIe root ports # Disable all L1 substates for PCIe root ports
register "PcieRpL1Substates[0]" = "L1_SS_DISABLED"
register "PcieRpL1Substates[1]" = "L1_SS_DISABLED" register "PcieRpL1Substates[1]" = "L1_SS_DISABLED"
register "PcieRpL1Substates[2]" = "L1_SS_DISABLED"
register "PcieRpL1Substates[4]" = "L1_SS_DISABLED"
register "PcieRpL1Substates[6]" = "L1_SS_DISABLED" register "PcieRpL1Substates[6]" = "L1_SS_DISABLED"
# Disable LTR for all PCIe root ports # Disable LTR for all PCIe root ports
register "PcieRpLtrDisable[0]" = "true"
register "PcieRpLtrDisable[1]" = "true" register "PcieRpLtrDisable[1]" = "true"
register "PcieRpLtrDisable[2]" = "true"
register "PcieRpLtrDisable[4]" = "true"
register "PcieRpLtrDisable[6]" = "true" register "PcieRpLtrDisable[6]" = "true"
# Storage (SDCARD/EMMC) related UPDs # Storage (SDCARD/EMMC) related UPDs
@ -156,10 +147,7 @@ chip soc/intel/elkhartlake
device pci 1a.0 on end # eMMC device pci 1a.0 on end # eMMC
device pci 1a.1 on end # SD device pci 1a.1 on end # SD
device pci 1c.0 on end # RP1 (pcie0 single VC)
device pci 1c.1 on end # RP2 (pcie0 single VC) device pci 1c.1 on end # RP2 (pcie0 single VC)
device pci 1c.2 on end # RP3 (pcie0 single VC)
device pci 1c.4 on end # RP5 (pcie1 multi VC)
device pci 1c.6 on end # RP7 (pcie3 multi VC) device pci 1c.6 on end # RP7 (pcie3 multi VC)
device pci 1d.0 off end # Intel PSE IPC (local host to PSE) device pci 1d.0 off end # Intel PSE IPC (local host to PSE)