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powerpc/booke64: Use appropriate -mcpu

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By default use -mcpu=powerpc64 rather than -mtune=power7

Add options for e5500/e6500, with fallbacks for older compilers.

Hide the POWER cpu options in booke configs.

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2013-08-20 19:55:36 -05:00
parent f49596a4cf
commit 01718ba6ec
2 changed files with 22 additions and 0 deletions
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9
arch/powerpc/Makefile
View file

@ -88,13 +88,22 @@ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc)
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple
ifeq ($(CONFIG_PPC_BOOK3S_64),y)
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4)
else
CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
endif
CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell)
CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4)
CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
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))
CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell)
KBUILD_CPPFLAGS += -Iarch/$(ARCH)

13
arch/powerpc/platforms/Kconfig.cputype
View file

@ -96,18 +96,31 @@ config GENERIC_CPU
config CELL_CPU
bool "Cell Broadband Engine"
depends on PPC_BOOK3S_64
config POWER4_CPU
bool "POWER4"
depends on PPC_BOOK3S_64
config POWER5_CPU
bool "POWER5"
depends on PPC_BOOK3S_64
config POWER6_CPU
bool "POWER6"
depends on PPC_BOOK3S_64
config POWER7_CPU
bool "POWER7"
depends on PPC_BOOK3S_64
config E5500_CPU
bool "Freescale e5500"
depends on E500
config E6500_CPU
bool "Freescale e6500"
depends on E500
endchoice