This patch adds Kconfig options and relevant Big Endian compiler flags.
Signed-off-by: Ankit Jindal ankit.jindal@linaro.org Signed-off-by: Tushar Jagad tushar.jagad@linaro.org --- arch/arm64/Kconfig | 2 ++ arch/arm64/Makefile | 7 +++++++ arch/arm64/mm/Kconfig | 7 +++++++ 3 files changed, 16 insertions(+) create mode 100644 arch/arm64/mm/Kconfig
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f558058..2214ab9 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -285,6 +285,8 @@ config SYSVIPC_COMPAT
endmenu
+source "arch/arm64/mm/Kconfig" + source "net/Kconfig"
source "drivers/Kconfig" diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index d90cf79..c92b0f9 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -20,9 +20,16 @@ LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) KBUILD_DEFCONFIG := defconfig
KBUILD_CFLAGS += -mgeneral-regs-only + +ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) +KBUILD_CPPFLAGS += -mbig-endian +AS += -EB +LD += -EB +else KBUILD_CPPFLAGS += -mlittle-endian AS += -EL LD += -EL +endif
comma = ,
diff --git a/arch/arm64/mm/Kconfig b/arch/arm64/mm/Kconfig new file mode 100644 index 0000000..e4122ac --- /dev/null +++ b/arch/arm64/mm/Kconfig @@ -0,0 +1,7 @@ +config CPU_BIG_ENDIAN + bool "Build big-endian kernel" + help + Say Y if you plan on running a kernel in big-endian mode. + Note that your board must be properly built and your board + port must properly enable any big-endian related features + of your chipset/board/processor.