ARM: uniphier: add CONFIG_PREBOOT
For more boot-flow flexibility,
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index 1e509ce..95d6452 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -124,6 +124,8 @@
"third_image=u-boot.bin\0"
#endif
+#define CONFIG_PREBOOT "env exist ${bootdev}preboot && run ${bootdev}preboot"
+
#define CONFIG_ROOTPATH "/nfs/root/path"
#define CONFIG_NFSBOOTCOMMAND \
"setenv bootargs $bootargs root=/dev/nfs rw " \