X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=utils%2Fhooks%2F20-set-stdout;fp=utils%2Fhooks%2F20-set-stdout;h=92ff030c2716c61181f601cc606775dc950ecc43;hb=af805399e80ae70a9fc7af9b47d76577be44a683;hp=0000000000000000000000000000000000000000;hpb=49f515d354d8d40e2053fe5806fea12b06bcb115;p=petitboot

diff --git a/utils/hooks/20-set-stdout b/utils/hooks/20-set-stdout
new file mode 100755
index 0000000..92ff030
--- /dev/null
+++ b/utils/hooks/20-set-stdout
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# Hook to set the linux,stdout-path property from an nvram property
+# (named $nvram_prop).
+
+nvram_prop=petitboot,console
+
+# we need to be using a dtb
+[ -n "$boot_dtb" ] || exit
+
+console=$(nvram --print-config="$nvram_prop")
+
+[ $? = 0 -a -n "$console" ] || exit
+
+dtb_in=$boot_dtb
+dtb_out=$(mktemp)
+
+(
+	dtc -I dtb -O dts $dtb_in
+	echo '/ { chosen { linux,stdout-path = "'$console'"; }; }; '
+) | dtc -I dts -O dtb -o $dtb_out
+
+[ $? = 0 ] && mv $dtb_out $dtb_in