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powerpc/e500: Set -mcpu flag for 32-bit e500

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Unlike 64-bit, we don't currently support multiplatform between e500
and non-e500, so the -mcpu is not configurable at this time.

-msoft-float is specified when testing for -mcpu=8540 because otherwise
some older toolchains will fail with "error: E500 and FPRs not
supported".

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2013-08-15 19:19:10 -05:00
parent 01718ba6ec
commit 847f56b0cc
1 changed files with 8 additions and 0 deletions
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8
arch/powerpc/Makefile
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@ -104,6 +104,14 @@ E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
ifeq ($(CONFIG_PPC32),y)
ifeq ($(CONFIG_PPC_E500MC),y)
CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
else
CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
endif
endif
CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell)
KBUILD_CPPFLAGS += -Iarch/$(ARCH) KBUILD_CPPFLAGS += -Iarch/$(ARCH)