[U-Boot] SPL Linux Boot

[Stefano Babic]

On 16/12/2011 16:45, Tom Rini wrote:
> On Fri, Dec 16, 2011 at 8:37 AM, Stefano Babic <sbabic at denx.de> wrote:
>> Hi,
>>
>> this is a new submission of the Simon's work to add a way to
>> boot Linux directly from the SPL. From the last patchset series,
>> the main changes introduced by me are the following:
>>
>> - compile the cache functions in SPL to make cleanup_before_linux()
>>  available.
>> - do not call I"C function on boards where I2C is not available
>> - fix a bug from last version (fallback to U-Boot)
>> - move all related SPL stuff to common/ and fix omap related
>>  functions.
>>
>> Tested on the twister board (patches for this board in u-boot-ti, next)
>>
>> Note: to test it is also required Simon's patch:
>>
>>        arm: Add Prep subcommand support to bootm
>>
>> http://patchwork.ozlabs.org/patch/129753/
> 
> I'm going to mark this series as RFC in patchwork as I see you did
> +#ifneq... in some Makefiles and I know you know better :)  That said,
> can you confirm MAKEALL -s omap3 -s omap4 -s omap5 works?

I'll do, I have not yet tested and I built OMAP3. I have seen a couple
of other things due to the moved stuff that I should fix.

>  omap4/5 has
> smaller size requirements than omap3(ish) stuff and I don't have 100%
> faith in linker magic to make sure the cache stuff added to SPL in
> arch/arm/lib/ isn't going to bloat up the omap4/5 stuff slightly.

Ok, understood, I'll check it - if the added code is too much, I will
introduce a new CONFIG_SPL_SUPPORT_CACHE to make build optional.

Stefano

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