[PATCH 2/2] ARM: ux500: Enable HIGHMEM in the u8540 defconfig
Lee Jones
lee.jones at linaro.org
Fri May 31 11:18:50 EDT 2013
On Fri, 31 May 2013, Arnd Bergmann wrote:
> On Friday 31 May 2013 15:24:32 Lee Jones wrote:
> > In order to utilise all of the memory located on ux500 based devices
> > we have to enable HIGHMEM. Without it the kernel truncates memory down
> > to what's left after the PAGE_OFFSET has been applied, which doesn't
> > leave an awful lot, especially if we're running large rootfs' such
> > as full Linux desktop distributions or Android.
> >
> > Signed-off-by: Lee Jones <lee.jones at linaro.org>
>
> How much memory do those devices have? Enabling HIGHMEM is quite expensive.
Another 1GB.
> > diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> > index 5439925..808be06 100644
> > --- a/drivers/of/fdt.c
> > +++ b/drivers/of/fdt.c
>
> You should probably resend the patch without the second half that got
> in it by accident.
I did already, thanks.
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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