ARM: uniphier: merge ph1_ld4_defconfig and ph1_sld8_defconfig

These two are similar enough to be merged into a single
defconfig file.  Distinguish one from another by "DEVICE_TREE"
from the command line.  The how-to-build in doc/README.uniphier
should be also updated.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

MAINTAINERS

@@ -162,6 +162,7 @@ S:	Maintained
 T:	git git://git.denx.de/u-boot-uniphier.git
 F:	arch/arm/mach-uniphier/
 F:	configs/ph1_*_defconfig
+F:	configs/uniphier_*_defconfig
 N:	uniphier
 
 ARM ZYNQ

configs/ph1_sld8_defconfig

@@ -1,30 +0,0 @@
-CONFIG_ARM=y
-CONFIG_ARCH_UNIPHIER=y
-CONFIG_SYS_MALLOC_F_LEN=0x2000
-CONFIG_ARCH_UNIPHIER_PH1_SLD8=y
-CONFIG_MICRO_SUPPORT_CARD=y
-CONFIG_SYS_TEXT_BASE=0x84000000
-CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-sld8-ref"
-CONFIG_HUSH_PARSER=y
-# CONFIG_CMD_XIMG is not set
-# CONFIG_CMD_ENV_EXISTS is not set
-CONFIG_CMD_NAND=y
-CONFIG_CMD_I2C=y
-CONFIG_CMD_USB=y
-# CONFIG_CMD_FPGA is not set
-CONFIG_CMD_TFTPPUT=y
-CONFIG_CMD_PING=y
-CONFIG_CMD_TIME=y
-# CONFIG_CMD_MISC is not set
-CONFIG_NET_RANDOM_ETHADDR=y
-CONFIG_SPL_SIMPLE_BUS=y
-CONFIG_NAND_DENALI=y
-CONFIG_SYS_NAND_DENALI_64BIT=y
-CONFIG_NAND_DENALI_SPARE_AREA_SKIP_BYTES=8
-CONFIG_SPL_NAND_DENALI=y
-CONFIG_PINCTRL=y
-CONFIG_SPL_PINCTRL=y
-CONFIG_UNIPHIER_SERIAL=y
-CONFIG_USB=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_STORAGE=y

configs/uniphier_ld4_sld8_defconfig

@@ -2,6 +2,7 @@ CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ARCH_UNIPHIER_PH1_LD4=y
+CONFIG_ARCH_UNIPHIER_PH1_SLD8=y
 CONFIG_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-ld4-ref"

doc/README.uniphier

@@ -32,18 +32,18 @@ PH1-sLD3:
     $ make ph1_sld3_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-
 
-PH1-LD4:
-    $ make ph1_ld4_defconfig
+PH1-LD4 reference board:
+    $ make uniphier_ld4_sld8_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-
 
+PH1-sLD8 reference board:
+    $ make uniphier_ld4_sld8_defconfig
+    $ make CROSS_COMPILE=arm-linux-gnueabi- DEVICE_TREE=uniphier-ph1-sld8-ref
+
 PH1-Pro4:
     $ make ph1_pro4_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-
 
-PH1-sLD8:
-    $ make ph1_sld8_defconfig
-    $ make CROSS_COMPILE=arm-linux-gnueabi-
-
 PH1-Pro5:
     $ make ph1_pro5_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-