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-rw-r--r--config/coreboot/default/patches/0028-dell-e6-30-disable-the-ME-device-in-devicetree.patch54
1 files changed, 54 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0028-dell-e6-30-disable-the-ME-device-in-devicetree.patch b/config/coreboot/default/patches/0028-dell-e6-30-disable-the-ME-device-in-devicetree.patch
new file mode 100644
index 00000000..fa7ab40d
--- /dev/null
+++ b/config/coreboot/default/patches/0028-dell-e6-30-disable-the-ME-device-in-devicetree.patch
@@ -0,0 +1,54 @@
+From 8705b719573d2159adde10af9c6a4d8806b7d27b Mon Sep 17 00:00:00 2001
+From: Leah Rowe <info@minifree.org>
+Date: Thu, 25 Jan 2024 14:37:30 +0000
+Subject: [PATCH 28/30] dell/e6*30: disable the ME device in devicetree
+
+we neuter anyway. disabling it in devicetree will prevent linux
+from ever trying to use it or load a driver for it, and thus
+might prevent benign error messages from appearing in dmesg.
+
+this change was suggested by nicholas when asked on irc.
+
+Signed-off-by: Leah Rowe <info@minifree.org>
+---
+ src/mainboard/dell/e6430/devicetree.cb | 4 ++--
+ src/mainboard/dell/e6530/devicetree.cb | 4 ++--
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/mainboard/dell/e6430/devicetree.cb b/src/mainboard/dell/e6430/devicetree.cb
+index 054b01c5ac..2b8574c984 100644
+--- a/src/mainboard/dell/e6430/devicetree.cb
++++ b/src/mainboard/dell/e6430/devicetree.cb
+@@ -39,10 +39,10 @@ chip northbridge/intel/sandybridge # FIXME: GPU registers may not always apply.
+ register "xhci_switchable_ports" = "0x0000000f"
+
+ device ref xhci on end
+- device ref mei1 on end
++ device ref mei1 off end
+ device ref mei2 off end
+ device ref me_ide_r off end
+- device ref me_kt on end
++ device ref me_kt off end
+ device ref gbe on end
+ device ref ehci2 on end
+ device ref hda on end
+diff --git a/src/mainboard/dell/e6530/devicetree.cb b/src/mainboard/dell/e6530/devicetree.cb
+index 37135bcf0f..010200bb6d 100644
+--- a/src/mainboard/dell/e6530/devicetree.cb
++++ b/src/mainboard/dell/e6530/devicetree.cb
+@@ -39,10 +39,10 @@ chip northbridge/intel/sandybridge # FIXME: GPU registers may not always apply.
+ register "xhci_switchable_ports" = "0x0000000f"
+
+ device ref xhci on end # USB 3.0 Controller
+- device ref mei1 on end # Management Engine Interface 1
++ device ref mei1 off end # Management Engine Interface 1
+ device ref mei2 off end # Management Engine Interface 2
+ device ref me_ide_r off end # Management Engine IDE-R
+- device ref me_kt on end # Management Engine KT
++ device ref me_kt off end # Management Engine KT
+ device ref gbe on end # Intel Gigabit Ethernet
+ device ref ehci2 on end # USB2 EHCI #2
+ device ref hda on end # High Definition Audio
+--
+2.39.2
+