mb/intel/adlrvp: Make CLKSRC and CLKREQ proper for PCIE RP8
1. Make CLKSRC -> 7 and CLKREQ -> 6
2. CLK 6 is using free running CLK
3. Make LAN CLK 7 as unused as GbE is disable
TEST=Able to detect PCIE SD card on 0x1 slot.
Change-Id: I7fbde9492a0c59fc76931bfb7c9522d4f208ebb0
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48449
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/intel/adlrvp/devicetree.cb b/src/mainboard/intel/adlrvp/devicetree.cb
index daf6ed1..12cd475 100644
--- a/src/mainboard/intel/adlrvp/devicetree.cb
+++ b/src/mainboard/intel/adlrvp/devicetree.cb
@@ -51,11 +51,11 @@
register "PcieClkSrcUsage[5]" = "0x5"
register "PcieRpClkReqDetect[5]" = "1"
- # Enable PCH PCIE RP 8 using free running CLK (0x80)
+ # Enable PCH PCIE RP 8 using CLK 6
register "PcieRpEnable[7]" = "1"
- register "PcieClkSrcClkReq[7]" = "7"
- register "PcieClkSrcUsage[7]" = "0x80"
- register "PcieRpClkReqDetect[7]" = "1"
+ register "PcieClkSrcClkReq[7]" = "6" # CLKSRC -> 7 and CLKREQ -> 6
+ register "PcieClkSrcUsage[6]" = "PCIE_CLK_FREE" # CLK 6 is using free running CLK
+ register "PcieRpClkReqDetect[6]" = "1"
# Enable PCH PCIE RP 9 using CLK 1
register "PcieRpEnable[8]" = "1"
@@ -76,7 +76,7 @@
register "PcieClkSrcUsage[4]" = "0x42"
# Mark LAN CLK pins as unused as GbE 0:0x1f.6 is disabled below
- register "PcieClkSrcUsage[6]" = "0xff"
+ register "PcieClkSrcUsage[7]" = "PCIE_CLK_NOTUSED"
register "SataSalpSupport" = "1"