toolchain: add sparc64 architecture support

Introduce sparc64 architecture to buildroot.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Tested-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

arch/Config.in

@@ -217,6 +217,16 @@ config BR2_sparc
 	  http://www.oracle.com/sun
 	  http://en.wikipedia.org/wiki/Sparc
 
+config BR2_sparc64
+	bool "SPARC64"
+	select BR2_ARCH_IS_64
+	select BR2_ARCH_HAS_MMU_MANDATORY
+	help
+	  SPARC (from Scalable Processor Architecture) is a RISC instruction
+	  set architecture (ISA) developed by Sun Microsystems.
+	  http://www.oracle.com/sun
+	  http://en.wikipedia.org/wiki/Sparc
+
 config BR2_x86_64
 	bool "x86_64"
 	select BR2_ARCH_IS_64
@@ -388,7 +398,7 @@ if BR2_sh || BR2_sh64
 source "arch/Config.in.sh"
 endif
 
-if BR2_sparc
+if BR2_sparc || BR2_sparc64
 source "arch/Config.in.sparc"
 endif
 

arch/Config.in.sparc

@@ -1,18 +1,25 @@
 choice
 	prompt "Target Architecture Variant"
-	depends on BR2_sparc
-	default BR2_sparc_v8
+	depends on BR2_sparc || BR2_sparc64
+	default BR2_sparc_v8 if BR2_sparc
+	default BR2_sparc_v9 if BR2_sparc64
 	help
 	  Specific CPU variant to use
 
 config BR2_sparc_v8
 	bool "v8"
+	depends on BR2_sparc
 config BR2_sparc_leon3
 	bool "leon3"
+	depends on BR2_sparc
+config BR2_sparc_v9
+	bool "v9"
+	depends on BR2_sparc64
 endchoice
 
 config BR2_ARCH
 	default "sparc"	if BR2_sparc
+	default "sparc64" if BR2_sparc64
 
 config BR2_ENDIAN
 	default "BIG"
@@ -20,3 +27,4 @@ config BR2_ENDIAN
 config BR2_GCC_TARGET_CPU
 	default "leon3"		if BR2_sparc_leon3
 	default "v8"		if BR2_sparc_v8
+	default "ultrasparc"	if BR2_sparc_v9

toolchain/toolchain-buildroot/Config.in

@@ -67,7 +67,8 @@ config BR2_TOOLCHAIN_BUILDROOT_GLIBC
 		   BR2_mipsel      || BR2_mips64     || BR2_mips64el|| \
 		   BR2_powerpc     || BR2_powerpc64  || BR2_powerpc64le || \
 		   BR2_sh          || BR2_sh64       || BR2_sparc   || \
-		   BR2_x86_64      || BR2_microblaze || BR2_nios2
+		   BR2_sparc64     || BR2_x86_64     || BR2_microblaze || \
+		   BR2_nios2
 	depends on BR2_USE_MMU
 	depends on !BR2_STATIC_LIBS
 	depends on !BR2_powerpc_SPE