[U-Boot] [PATCH] Hardware watchdog support for AT91SAM9260 CPU

Sergey Lapin slapin at ossfans.org
Thu Oct 23 01:22:53 CEST 2008


On Wed, Oct 22, 2008 at 11:49:44PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 02:29 Fri 15 Aug     , Sergey Lapin wrote:
Dear Jean-Christophe,
thanks a lot for your review.
> > 
> Are you from ADI?
No, but this file structure is a lot based on blackfin watchdog
and I have too little code to make it int full intellectual
property, IMHO.
> > + *
> > + * Licensed under the GPL-2 or later.
> > + */
> > +
> > +#include <common.h>
> > +#include <watchdog.h>
> > +#include <asm/arch/hardware.h>
> > +#include <asm/arch/io.h>
> > +
> > +#ifdef CONFIG_HW_WATCHDOG
> no need please remove
Ok,
> > +#define AT91_WDT_CR		(AT91_WDT+0x00)
> 				        ^
> please add space arround '+'
Ok.
> > +#define AT91_WDT_MR		(AT91_WDT+0x04)
> > +#define AT91_WDT_SR		(AT91_WDT+0x08)
> > +
> > +void hw_watchdog_reset(void)
> > +{
> > +	at91_sys_write(AT91_WDT_CR, 0xa5000001);
> 					^^^^
> 					please use macro you can import them
> 					from Linux
Is this kind of watchdog supported in Linux already? When I submitted
this file it was not yet.

All the best,
S.



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