[U-Boot] arm, arm335x: add watchdog support

[Heiko Schocher]

Hello Tom,

Am 04.06.2013 23:24, schrieb Tom Rini:
> On Tue, Jun 04, 2013 at 10:55:36AM +0200, Heiko Schocher wrote:
> 
>> Add TI OMAP 16xx & 24xx/34xx 32KHz (non-secure) watchdog support.
>>
>> Signed-off-by: Heiko Schocher <hs at denx.de>
>> Cc: Albert Aribaud <albert.u.boot at aribaud.net>
>> Cc: Tom Rini <trini at ti.com>
> 
> Reviewed-by: Tom Rini <trini at ti.com>
> 
> But this is also unused code right now.  Enabling on the am335x_evm
> config is a good place-holder and easy for you to test I assume platform
> until you can also post the custom board you're working on.

I repost this patch with the board support, ok?

bye,
Heiko
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