[U-Boot] arm, arm335x: save_omap_boot_params question

[Heiko Schocher <hs@denx.de>]

Hello Tom,

Am 12.06.2013 14:28, schrieb Tom Rini:
> On Wed, Jun 12, 2013 at 10:56:01AM +0200, Heiko Schocher wrote:
>> Hello tom,
>>
>> your
>>
>> commit 4596dcc1d4ea5763e0f92cf5becd9fc7d4c6e674
>> Author: Tom Rini <trini@ti.com>
>> Date:   Fri May 31 12:31:59 2013 -0400
>>
>>     am33xx/omap: Move save_omap_boot_params to omap-common/boot-common.c
>>
>> introduced, that all am335x based boards must call
>> save_omap_boot_params() from the board specific s_init function. I
>> just stumbled over it, as I updated to current head and my upcoming
>> am335x based siemens boards didn't boot anymore ... should we think
>> about to move this s_init() to a common place, and extract board
>> specific things? Maybe arch/arm/cpu/armv7/omap-common/boot-common.c
>> is a place for it?
> 
> I think the first non-am335x_evm board pulled the code we need in board/
> a bit too far in the board-specific direction.
> 
> Whacking the WDT (which could be done differently I imagine based on
> your other patches), calling save_omap_boot_params and UART stuff is
> common.  Figuring out which DDR and how is not.  I think we can learn
> from omap-common/hwinit-common.c::s_init but need to have our own in
> arch/arm/cpu/armv7/am33xx/board.c and declared __weak or wrapped with
> CONFIG_AM33XX since TI814x (and TI816x) are different.  Or maybe some
> more thinking share still.
> 
> Do you have time for this?  Thanks!

I try to find some ;-)

Maybe something like this:

add in arch/arm/cpu/armv7/am33xx/board.c a weak s_init(), which all
am35xx boards use, and call in this s_init() a s_init_board() which
all am335x boards must have defined?

bye,
Heiko
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