Just out of curiosity: What's the difference (if any) between -mcpu=e500mc64 and -mcpu=e5500? AFAIK -mcpu=e500mc64 is supported by gcc since at least version 4.6 whereas -mcpu=e5500 is only supported since gcc 4.8. But is there actually any difference?
Rojhalat On Tuesday 20 August 2013 21:12:41 Scott Wood wrote: > 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 <scottw...@freescale.com> > --- > arch/powerpc/Makefile | 9 +++++++++ > arch/powerpc/platforms/Kconfig.cputype | 13 +++++++++++++ > 2 files changed, 22 insertions(+) > > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile > index 6930c93..32dfd5d 100644 > --- a/arch/powerpc/Makefile > +++ b/arch/powerpc/Makefile > @@ -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) > diff --git a/arch/powerpc/platforms/Kconfig.cputype > b/arch/powerpc/platforms/Kconfig.cputype index 47d9a03..6704e2e 100644 > --- a/arch/powerpc/platforms/Kconfig.cputype > +++ b/arch/powerpc/platforms/Kconfig.cputype > @@ -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 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
