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[4/4] powerpc/e500: Set -mcpu flag for 32-bit e500

Message ID 1377051162-2588-5-git-send-email-scottwood@freescale.com (mailing list archive)
State Accepted, archived
Commit 847f56b0cc2fe431a1272eb586e316ba2c02c55f
Delegated to: Scott Wood
Headers show

Commit Message

Scott Wood Aug. 21, 2013, 2:12 a.m. UTC 
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>
---
 arch/powerpc/Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 32dfd5d..51cfb78 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -104,6 +104,14 @@  E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
 CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
 CFLAGS-$(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)
 
 KBUILD_CPPFLAGS	+= -Iarch/$(ARCH)