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>
diff --git a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
index 4982384..438419a 100644
--- a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
+++ b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
@@ -43,18 +43,15 @@
register "SkipCpuReplacementCheck" = "1"
# PCIe root ports related UPDs
- register "PcieRpEnable[0]" = "1"
register "PcieRpEnable[1]" = "1"
- register "PcieRpEnable[2]" = "1"
- register "PcieRpEnable[4]" = "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[2]" = "PCIE_CLK_FREE"
- register "PcieClkSrcUsage[3]" = "PCIE_CLK_FREE"
+ register "PcieClkSrcUsage[2]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[3]" = "PCIE_CLK_NOTUSED"
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[1]" = "PCIE_CLK_NOTUSED"
@@ -64,17 +61,11 @@
register "PcieClkSrcClkReq[5]" = "PCIE_CLK_NOTUSED"
# Disable all L1 substates for PCIe root ports
- register "PcieRpL1Substates[0]" = "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"
# Disable LTR for all PCIe root ports
- register "PcieRpLtrDisable[0]" = "true"
register "PcieRpLtrDisable[1]" = "true"
- register "PcieRpLtrDisable[2]" = "true"
- register "PcieRpLtrDisable[4]" = "true"
register "PcieRpLtrDisable[6]" = "true"
# Storage (SDCARD/EMMC) related UPDs
@@ -156,10 +147,7 @@
device pci 1a.0 on end # eMMC
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.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 1d.0 off end # Intel PSE IPC (local host to PSE)