Matt DeVillier has uploaded this change for review.
mb/purism/librem_skl: Fix CLKREQ for 15v3 NVMe
Per the schematics, SRCCLKREQ2# is used for the NVMe and should be enabled.
Enable CLKREQ for PCIe RP9 to match the comment, and just comment
to indicate correct value per schematic.
Test: build/boot Librem 15v3 with NVMe drive, verify drive identified
properly and no errors in boot log.
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
Change-Id: I159cb7ce1f5195d95c0229490c3bbde26edbd375
---
M src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
1 file changed, 2 insertions(+), 2 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/40950/1
diff --git a/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb b/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
index 308688a..d9c4f14 100644
--- a/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
@@ -164,8 +164,8 @@
register "PcieRpEnable[4]" = "1"
register "PcieRpEnable[8]" = "1"
# Enable CLKREQ# for RP9
- register "PcieRpClkReqSupport[8]" = "0"
- # ClkReq for NVMe - Bruteforced (no other value works)
+ register "PcieRpClkReqSupport[8]" = "1"
+ # SRCCLKREQ2# for NVMe per schematic
register "PcieRpClkReqNumber[8]" = "2"
register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC_SKIP)" # Type-C Port
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