Re: [PATCH] arm: add default value for PHYS_OFFSET Kconfig setting

From: Paul Gortmaker
Date: Fri Dec 02 2011 - 11:32:21 EST


On 11-12-02 04:21 AM, Uwe Kleine-König wrote:
> Hello Nicolas,
>
> On Fri, Dec 02, 2011 at 12:33:26AM -0500, Nicolas Pitre wrote:

[...]

>> And it seems that at91x40 is the only defconfig with MMU=n, so the only
>> option is really to provide a default CONFIG_PHYS_OFFSET. So what about
>> this:
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index e084b7e981..a24672924f 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -222,6 +222,7 @@ config NEED_MACH_MEMORY_H
>> config PHYS_OFFSET
>> hex "Physical address of main memory"
>> depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
>> + default DRAM_BASE if !MMU
>> help
>> Please provide the physical address corresponding to the
>> location of main memory in your system.
>>
>> Eventually the DRAM_BASE config option could simply be replaced by
>> PHYS_OFFSET directly, but that's a larger change.
> I'm working on a MMU-less machine, too and had that change already in my
> working copy. I was about to commit and it send out later today.
>
> So: Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>

Looks fine to me as well; I had no particular attachment to the
original patch, and you guys have a much better understanding of
the specifics of the system.

Thanks,
Paul.

>
> Best regards
> Uwe
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/