From d1b60d34079b29be023115c5327ed209bf4969c5 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Thu, 28 Aug 2014 10:56:55 +0900
Subject: [PATCH] README.kconfig: document backward compatibility "make
 *_config"

Commit 3ff291f371fa9858426774f3732924bacb61ed1c
(kconfig: convert Kconfig helper script into a shell script)
restored "<board>_config" target for backward compatibility.
It should be documented.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
---
 doc/README.kconfig     | 7 +++++++
 scripts/multiconfig.sh | 1 +
 2 files changed, 8 insertions(+)

diff --git a/doc/README.kconfig b/doc/README.kconfig
index cd549a8a54..3aad5b4185 100644
--- a/doc/README.kconfig
+++ b/doc/README.kconfig
@@ -114,6 +114,13 @@ See below for how each configuration target works in U-Boot:
   coalesced together with "<condition:>" prefix for each line as shown above.
   This file can be used as an input of "defconfig" target.
 
+- <board>_config
+
+  This does not exist in Linux's Kconfig.
+  Prior to Kconfig, in U-Boot, "make <board>_config" was used for the
+  configuration.  It is still supported for backward compatibility and
+  its behavior is the same as "make <board>_defconfig".
+
 
 Migration steps to Kconfig
 --------------------------
diff --git a/scripts/multiconfig.sh b/scripts/multiconfig.sh
index 56cf0c2a5d..4190798a97 100644
--- a/scripts/multiconfig.sh
+++ b/scripts/multiconfig.sh
@@ -248,6 +248,7 @@ case $target in
 *_defconfig)
 	do_board_defconfig $target;;
 *_config)
+	# backward compatibility
 	do_board_defconfig ${target%_config}_defconfig;;
 silentoldconfig)
 	do_silentoldconfig;;