[U-Boot] SPL Linux Boot

[Tom Rini]

On Tue, Jan 31, 2012 at 4:25 AM, Stefano Babic <sbabic at denx.de> wrote:
> On 30/01/2012 19:05, Tom Rini wrote:
>
> Hi Tom,
>
>>> OK, doing a MAKEALL for omap3/4/5/am33xx/davinci shows we've got a few
>>> missing include problems, I'll go fix that up.
>>
>> OK, was it when you took over the series that you moved stuff to
>> common/spl.c ?  That idea is breaking, badly, non-omap platforms.
>
> I am trying to summarize the different problems we have.
> Comparing to u-boot-ti, the patchset breaks the following boards:
>
> davinci:
>        da850_am18xxevm da850evm hawkboard_nand
>
> omap4/5:
>        fixed including spl.h into arch/arm/cpu/armv7/omap-common/boot-common.c
>
> mx28:
>        m28evk mx28evk
>
> I have not seen other broken boards - let me know if you find something
> else.
>
> On omap4/5 is only a thing of include files, as you reported.
>
> A main issue is with davinci, because we have currently two different
> spl.c (arch/arm/cpu/arm926ejs/davinci/spl.c on davinci). The code can be
> factorized, if davinci will use preloader_console_init() as omap.
>
> The same problem rises with mx28: there is a specific file
> arch/arm/cpu/arm926ejs/mx28/spl_boot.c, that redefines board_init_f()
> and board_init_r() - as we try to have a common spl code, this muist be
> fixed, too.
>
> A way can be to add an arch weak function to add arch specific
> initialization inside  board_init_*() functions, if any. Have you seen
> other issues other what I report now ?

That sounds about right.  In short, ./MAKEALL -s arm still needs to
build before we can take this series in, so perhaps we want to
separate back out the "make SPL stuff more generic" from the "let SPL
for omap* boot Linux" series.

-- 
Tom