On 2013年04月17日 18:02, Russell King - ARM Linux wrote: > On Wed, Apr 17, 2013 at 05:25:34PM +0800, Chen Gang wrote: >> CONFIG_CPU_ARM7TDMI=y >> CONFIG_CPU_ARM9TDMI=y >> CONFIG_CPU_V7=y >> CONFIG_CPU_32v4T=y >> CONFIG_CPU_32v6K=y >> CONFIG_CPU_32v7=y > > This is an invalid configuration. A single kernel can not support ARMv7 > and ARMv4T simultaneously. > > The problem is caused by MMU=n, which exposes the CPU_ARM7TDMI and > CPU_ARM9TDMI options, which in turn select 32v4T. This is in turn > caused by the incomplete integration of uclinux. > > I think the only thing which can be done is to remove the ARM9TDMI > support code, which doesn't seem to be used by anything, and adjust > ARM7TDMI so that it isn't visible, but is selected by ARCH_AT91X40 > (which seems to be its only user.) > > Here's the slightly smaller version of that: > I apply your patch below. and also let CONFIG_MMU=y in menuconfig (just Arnd suggested). it passes compilation. I prefer to let the patch below to integrate into next-tree. if I should do it (e.g. need send the patch again in normal way), I should try. thanks. gchen. > diff --git a/arch/arm/mach-at91/Kconfig.non_dt b/arch/arm/mach-at91/Kconfig.non_dt > index 6c24985..dc972e1 100644 > --- a/arch/arm/mach-at91/Kconfig.non_dt > +++ b/arch/arm/mach-at91/Kconfig.non_dt > @@ -47,6 +47,7 @@ config ARCH_AT91X40 > select ARCH_USES_GETTIMEOFFSET > select MULTI_IRQ_HANDLER > select SPARSE_IRQ > + select CPU_ARM7TDMI > > endchoice > > diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig > index cb812a1..deb6c6a 100644 > --- a/arch/arm/mm/Kconfig > +++ b/arch/arm/mm/Kconfig > @@ -6,7 +6,7 @@ comment "Processor Type" > > # ARM7TDMI > config CPU_ARM7TDMI > - bool "Support ARM7TDMI processor" > + bool > depends on !MMU > select CPU_32v4T > select CPU_ABRT_LV4T > @@ -56,7 +56,7 @@ config CPU_ARM740T > > # ARM9TDMI > config CPU_ARM9TDMI > - bool "Support ARM9TDMI processor" > + bool > depends on !MMU > select CPU_32v4T > select CPU_ABRT_NOMMU > > > -- Chen Gang Asianux Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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