toolchain: add linaro 2012.03 external ARM toolchain

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/toolchain-external/Config.in

@@ -3,6 +3,20 @@ if BR2_TOOLCHAIN_EXTERNAL
 choice
 	prompt "Toolchain"
 
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_03
+	bool "Linaro 2012.03"
+	depends on BR2_arm
+	depends on BR2_cortex_a8 || BR2_cortex_a9
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	help
+	  Linaro toolchain for the ARM architecture. It uses Linaro
+	  GCC 2012.03 (based on gcc 4.6), Linaro GDB 2012.03, eglibc
+	  2.13. It generates code that runs on all Cortex-A profile
+	  devices, but tuned for the Cortex-A9. The code generated is
+	  Thumb 2, with the softfp calling convention, and uses the
+	  VFPv3-D16 FPU instructions.
+
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_02
 	bool "Linaro 2012.02"
 	depends on BR2_arm
@@ -484,6 +498,7 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	string
 	default "arm-linux-gnueabi"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_01
 	default "arm-linux-gnueabi"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_02
+	default "arm-linux-gnueabi"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_03
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2009Q3
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2010Q1
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201009

toolchain/toolchain-external/ext-tool.mk

@@ -197,6 +197,9 @@ TOOLCHAIN_EXTERNAL_SOURCE=gcc-linaro-arm-linux-gnueabi-2012.01-20120125_linux.ta
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_02),y)
 TOOLCHAIN_EXTERNAL_SITE=http://launchpad.net/linaro-toolchain-binaries/trunk/2012.02/+download/
 TOOLCHAIN_EXTERNAL_SOURCE=gcc-linaro-arm-linux-gnueabi-2012.02-20120222_linux.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_03),y)
+TOOLCHAIN_EXTERNAL_SITE=http://launchpad.net/linaro-toolchain-binaries/trunk/2012.03/+download/
+TOOLCHAIN_EXTERNAL_SOURCE=gcc-linaro-arm-linux-gnueabi-2012.03-20120326_linux.tar.bz2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44),y)
 TOOLCHAIN_EXTERNAL_SITE=http://sourcery.mentor.com/sgpp/lite/mips/portal/package7401/public/mips-linux-gnu/
 TOOLCHAIN_EXTERNAL_SOURCE=mips-4.4-303-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2