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Disable m2 caddy hotplug on T480S 

This fixes an error where nvme disappears and gets renamed
on s3 resume. Mate Kukri told me to test that and it worked.

Signed-off-by: Leah Rowe <leah@libreboot.org>
m920qwip
Leah Rowe 2024-12-02 11:29:19 +00:00
parent 9dc3c86ae3
commit 046529abd9
1 changed files with 30 additions and 0 deletions
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30
config/coreboot/next/patches/0011-Disable-m2-hotplug-in-lenovo-t480s-devicetree.patch Normal file
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@ -0,0 +1,30 @@
From 44d0703b61156a19c6cbfb5cfe3f5d58e328daae Mon Sep 17 00:00:00 2001
From: Leah Rowe <info@minifree.org>
Date: Mon, 2 Dec 2024 11:16:43 +0000
Subject: [PATCH 1/1] Disable m2 hotplug in lenovo t480s devicetree
This fixes a bug where nvme disappears and gets renamed on
s3 resume.
Thanks go to Mate Kukri who suggested this.
Signed-off-by: Leah Rowe <info@minifree.org>
---
.../lenovo/sklkbl_thinkpad/variants/t480s/overridetree.cb | 1 -
1 file changed, 1 deletion(-)
diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/overridetree.cb b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/overridetree.cb
index 2cac8c4a75..9129d3a1b8 100644
--- a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/overridetree.cb
+++ b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/overridetree.cb
@@ -115,7 +115,6 @@ chip soc/intel/skylake
register "PcieRpClkSrcNumber[8]" = "5"
register "PcieRpAdvancedErrorReporting[8]" = "1"
register "PcieRpLtrEnable[8]" = "1"
- register "PcieRpHotPlug[8]" = "1"
end
end
end
--
2.39.5