Re: [PATCH 3/3] ARM: Select CPU_32v6K for CPU_V7 only if ARCH_OMAP2 isnot selected

Catalin Marinas
2010-01-28T11:01:06Z

On Tue, 2010-01-26 at 19:37 +0000, Tony Lindgren wrote:
> Otherwise the kernel built with both CPU_V6 and CPU_V7 will not
> boot on omap2.
>
> Signed-off-by: Tony Lindgren <tony@atomide.com>
> ---
> arch/arm/mm/Kconfig | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index baf6384..4c2e90d 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -399,7 +399,7 @@ config CPU_V6
> config CPU_32v6K
> bool "Support ARM V6K processor extensions" if !SMP
> depends on CPU_V6
> - default y if SMP && !ARCH_MX3
> + default y if SMP && !(ARCH_MX3 || ARCH_OMAP2)
> help
> Say Y here if your ARMv6 processor supports the 'K' extension.
> This enables the kernel to use some instructions not present
> @@ -410,7 +410,7 @@ config CPU_32v6K
> # ARMv7
> config CPU_V7
> bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
> - select CPU_32v6K
> + select CPU_32v6K if !ARCH_OMAP2

I suspect that would be an issue for all ARMv6 platforms without the MP
extensions (v6K). Could we do something like:

select CPU_32v6K if SMP || !CPU_V6

As for the CPU_32v6K config entry, do any of ARCH_MX3 or ARCH_OMAP2
support SMP? We could remove them.

--
Catalin