heads/patches/coreboot-4.15/0007-mb-purism-librem_skl-disable-HECI-PCI-device.patch

From 7e8b5f1b32f2d7b12ed3df191d3f4b1f1254489c Mon Sep 17 00:00:00 2001
From: Matt DeVillier <matt.devillier@puri.sm>
Date: Tue, 25 Jan 2022 19:52:44 -0600
Subject: [PATCH 9/9] mb/purism/librem_skl: disable HECI PCI device

As all librem_skl devices ship with the ME disabled via HAP bit and ME
firmware "neutralized" via me_cleaner, the HECI1 PCI device should be
marked off/disabled to ensure that heci_reset() is not called at the end
of heci_init(), as this causes a 15s timeout delay when booting
(introduced in commit cb2fd20 [soc/intel/common: Add HECI Reset flow in
the CSE driver]).

Change-Id: Ib6bfcfd97e32bb9cf5be33535d77eea8227a8f9f
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
---
 src/mainboard/purism/librem_skl/devicetree.cb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mainboard/purism/librem_skl/devicetree.cb b/src/mainboard/purism/librem_skl/devicetree.cb
index 5efb1e2aed..68fa343b3c 100644
--- a/src/mainboard/purism/librem_skl/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/devicetree.cb
@@ -162,7 +162,7 @@ chip soc/intel/skylake
 		device pci 14.1 on  end # USB xDCI (OTG)
 		device pci 14.2 on  end # Thermal Subsystem
 		device pci 14.3 off end # Camera
-		device pci 16.0 on  end # Management Engine Interface 1
+		device pci 16.0 off  end # Management Engine Interface 1
 		device pci 16.1 off end # Management Engine Interface 2
 		device pci 16.2 off end # Management Engine IDE-R
 		device pci 16.3 off end # Management Engine KT Redirection
-- 
2.30.2