From 4c78028737c3185f49f5691183aeac3478b5f699 Mon Sep 17 00:00:00 2001
From: Tom Rini <trini@konsulko.com>
Date: Mon, 22 May 2017 15:40:11 -0400
Subject: mksunxi_fit_atf.sh: Allow for this to complete when bl31.bin is
 missing

In situations like an autobuilder we are likely to not have bl31.bin
present and thus would fail to build and propagate the error upwards.
Instead, print a big warning to stderr so that human will see that
something is wrong but complete the build.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/board/sunxi/mksunxi_fit_atf.sh b/board/sunxi/mksunxi_fit_atf.sh
index ecea1b8..b1d6e0e 100755
--- a/board/sunxi/mksunxi_fit_atf.sh
+++ b/board/sunxi/mksunxi_fit_atf.sh
@@ -7,6 +7,12 @@
 
 [ -z "$BL31" ] && BL31="bl31.bin"
 
+if [ ! -f $BL31 ]; then
+	echo "WARNING: BL31 file $BL31 NOT found, resulting binary is non-functional" >&2
+	echo "Please read the section on ARM Trusted Firmware (ATF) in board/sunxi/README.sunxi64" >&2
+	BL31=/dev/null
+fi
+
 cat << __HEADER_EOF
 /dts-v1/;
 
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