Add sh2a support.

Rules.mak

@@ -167,7 +167,13 @@ ifeq ($(strip $(TARGET_ARCH)),sh)
 	CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
 	CPU_CFLAGS-$(CONFIG_SH2)+=-m2
 	CPU_CFLAGS-$(CONFIG_SH3)+=-m3
+ifeq ($(strip $(UCLIBC_HAS_FLOATS)),y)
+	CPU_CFLAGS-$(CONFIG_SH2A)+=-m2a
 	CPU_CFLAGS-$(CONFIG_SH4)+=-m4
+else
+	CPU_CFLAGS-$(CONFIG_SH2A)+=-m2a-nofpu
+	CPU_CFLAGS-$(CONFIG_SH4)+=-m4-nofpu
+endif
 endif
 
 ifeq ($(strip $(TARGET_ARCH)),sh64)

extra/Configs/Config.sh

@@ -4,7 +4,7 @@
 #
 
 config TARGET_ARCH
-	default "sh" if CONFIG_SH2 || CONFIG_SH3 || CONFIG_SH4
+	default "sh" if CONFIG_SH2A || CONFIG_SH2 || CONFIG_SH3 || CONFIG_SH4
 	default "sh64" if CONFIG_SH5
 
 config HAVE_ELF
@@ -47,6 +47,12 @@ choice
 	  - "SH4" SuperH SH-4
 	  - "SH5" SuperH SH-5 101, 103
 
+config CONFIG_SH2A
+	select ARCH_HAS_NO_MMU
+	select ARCH_HAS_NO_LDSO
+	select HAVE_NO_PIC
+	bool "SH2A"
+
 config CONFIG_SH2
 	select ARCH_HAS_NO_MMU
 	select ARCH_HAS_NO_LDSO