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xtensa: define CONFIG_CPU_{BIG,LITTLE}_ENDIAN

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Query compiler for the CPU endianness and add corresponding definition
to KBUILD_CPPFLAGS. This allows using 'native-endian' property in DTS.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2016-03-01 02:00:59 +03:00 committed by Chris Zankel
parent a67cc9aa2d
commit 4611bf7eb5
1 changed files with 2 additions and 0 deletions
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2
arch/xtensa/Makefile
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@ -53,9 +53,11 @@ endif
ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1)
CHECKFLAGS += -D__XTENSA_EB__
KBUILD_CPPFLAGS += -DCONFIG_CPU_BIG_ENDIAN
endif
ifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1)
CHECKFLAGS += -D__XTENSA_EL__
KBUILD_CPPFLAGS += -DCONFIG_CPU_LITTLE_ENDIAN
endif
vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))