unicore32: add KBUILD_DEFCONFIG with unicore32_defconfig (old debug_defconfig)

Rename debug_defconfig to unicore32_defconfig, which is a minimal config for
PKUnity-v3 (130nm) SoC board.
Also, add KBUILD_DEFCONFIG to use 'make defconfig'.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 3 insertions, 2 deletions

diff --git a/arch/unicore32/Makefile b/arch/unicore32/Makefile
index 76a8beec7d03..6555abbaeb87 100644
--- a/arch/unicore32/Makefile
+++ b/arch/unicore32/Makefile
@@ -75,7 +75,8 @@ endif
 
 boot                    := arch/unicore32/boot
 
-# Default target when executing plain make
+# Default defconfig and target when executing plain make
+KBUILD_DEFCONFIG        := $(ARCH)_defconfig
 KBUILD_IMAGE            := zImage
 
 all:    $(KBUILD_IMAGE)
diff --git a/arch/unicore32/configs/debug_defconfig b/arch/unicore32/configs/unicore32_defconfig
index 9b9c2519a38f..c9dd3198b6f7 100644
--- a/arch/unicore32/configs/debug_defconfig
+++ b/arch/unicore32/configs/unicore32_defconfig
@@ -1,6 +1,6 @@
 ### General setup
 CONFIG_EXPERIMENTAL=y
-CONFIG_LOCALVERSION="-debug"
+CONFIG_LOCALVERSION="-unicore32"
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y