toolchain-external: add aarch64 external toolchain

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/toolchain-external/Config.in

@@ -582,6 +582,15 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 	  Toolchain for the Microblaze architecture, from
 	  http://wiki.xilinx.com/mb-gnu-tools
 
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_10
+	bool "Linaro AArch64 12.10"
+	depends on BR2_aarch64
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	help
+	  Toolchain for the AArch64 architecture, from
+	  http://www.linaro.org/engineering/armv8/
+
 config BR2_TOOLCHAIN_EXTERNAL_CUSTOM
 	bool "Custom toolchain"
 	help
@@ -642,6 +651,7 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109
 	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203
+	default "aarch64-linux-gnu"      if BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_10
 	default "microblazeel-unknown-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2
 	default "microblaze-unknown-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 	default "mips-linux-gnu"         if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44

toolchain/toolchain-external/ext-tool.mk

@@ -262,6 +262,9 @@ TOOLCHAIN_EXTERNAL_SOURCE=microblazeel-unknown-linux-gnu.tgz
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2),y)
 TOOLCHAIN_EXTERNAL_SITE=http://git.xilinx.com/?p=xldk/microblaze_v2.0.git;a=blob;h=71e031ae990e063a5718f90d30cf97ad85e2f565;hb=569081301f0f1d8d3b24335a364e8ff1774190d4;f=
 TOOLCHAIN_EXTERNAL_SOURCE=microblaze-unknown-linux-gnu.tgz
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_10),y)
+TOOLCHAIN_EXTERNAL_SITE=http://releases.linaro.org/12.10/components/toolchain/gcc-linaro/aarch64/rc3/
+TOOLCHAIN_EXTERNAL_SOURCE=gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux.tar.bz2
 else
 # Custom toolchain
 TOOLCHAIN_EXTERNAL_SITE=$(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))