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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-11-02 19:51:29 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-11-03 09:47:32 +0100 |
| commit | a4292fe7cfddd567296596b3ecfe96eec5a10120 (patch) | |
| tree | 81dc420363de0d2b48fe4e7ba51aa482fc03ab8f | |
| parent | c7ce98dc8de9112ec868f0524d6a239d28e0d190 (diff) | |
| download | barebox-a4292fe7cfddd567296596b3ecfe96eec5a10120.tar.gz barebox-a4292fe7cfddd567296596b3ecfe96eec5a10120.tar.xz | |
arm: add endian config support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/Makefile | 10 | ||||
| -rw-r--r-- | arch/arm/cpu/Kconfig | 11 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index af2bb120fd..f6605abcf2 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -3,6 +3,16 @@ CPPFLAGS += -D__ARM__ -fno-strict-aliasing # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: CPPFLAGS +=$(call cc-option,-marm,) +ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) +CPPFLAGS += -mbig-endian +AS += -EB +LD += -EB +else +CPPFLAGS += -mlittle-endian +AS += -EL +LD += -EL +endif + # Machine directory name. This list is sorted alphanumerically # by CONFIG_* macro name. machine-$(CONFIG_ARCH_AT91) := at91 diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig index f89cce997b..cbec79390e 100644 --- a/arch/arm/cpu/Kconfig +++ b/arch/arm/cpu/Kconfig @@ -50,3 +50,14 @@ config CPU_32v5 config CPU_32v7 bool + +comment "processor features" + +config CPU_BIG_ENDIAN + bool "Build big-endian kernel" + depends on ARCH_SUPPORTS_BIG_ENDIAN + 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. |