Re: [PATCH] ARM: OMAP2PLUS: Enable HIGHMEM

[Tony Lindgren <tony@atomide.com>]

* Jon Hunter <jon-hunter@ti.com> [120502 11:34]:
> From: Santosh Shilimkar <santosh.shilimkar@ti.com>
> 
> HIGMEM support in kernel is quite mature now and we have boards
> like ZOOM, PANDA, SDP where 1 GB memories are installed. With
> HIGHMEM disabled not all of the 1GB of RAM (only ~700MB) can be
> accessed. Hence, enable HIGMEM to make use of the entire memory.
> 
> On the boards which doesn't have more than 768 MB memory, all
> the memory is directly mapped in "lowmem" and highmem isn't
> exercised. Hence, there should be no impact by enabling HIGHMEM
> for boards that do not need it.
> 
> Tested on OMAP4460 Panda-ES.
> 
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
> Tested-by: Jon Hunter <jon-hunter@ti.com>
> ---
>  arch/arm/mach-omap2/Kconfig |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index 8141b76..964ee67 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -17,6 +17,7 @@ config ARCH_OMAP2PLUS_TYPICAL
>  	select MENELAUS if ARCH_OMAP2
>  	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
>  	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
> +	select HIGHMEM
>  	help
>  	  Compile a kernel suitable for booting most boards

Thanks applying into board branch.

Regards,

Tony