From 98b8f51a7527c8247bd0435a878585f19c5620bd Mon Sep 17 00:00:00 2001
From: Raptor Engineering Development Team <support@raptorengineering.com>
Date: Fri, 20 Apr 2018 04:07:20 -0500
Subject: Migrate linux start signal to LPC port 81h/82h

---
 openpower/overlay/sbin/signal_linux_start_complete | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/openpower/overlay/sbin/signal_linux_start_complete b/openpower/overlay/sbin/signal_linux_start_complete
index 3d9e57df..5461c540 100755
--- a/openpower/overlay/sbin/signal_linux_start_complete
+++ b/openpower/overlay/sbin/signal_linux_start_complete
@@ -1,12 +1,18 @@
 #!/bin/sh
 #
-# Copyright © 2018 Raptor Engineering, LLC
+# Copyright © 2019 Raptor Engineering, LLC
 # Released under the GNU GPL v3
 
 set +e
 
-# Set OEM3 bit
-/sbin/devmem-aspeed 0x1e789060 w $(printf '0x%X\n' "$((`/sbin/devmem-aspeed 0x1e789060` | 0x10))")
+# Make sure debugfs is mounted
+if [ ! -e /sys/kernel/debug/powerpc ]; then
+       mount -t debugfs none /sys/kernel/debug/
+fi
+
+# Send 0xfefe start code via port 81h/82h
+pnv-lpc io 0x81.b=254
+pnv-lpc io 0x82.b=254
 
 # Always return success
 exit 0
-- 
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