Re: [U-Boot] [PATCH AT91] Add watchdog reset to the at91samx SOC family

15 Mar 2011

      HI
On 03/15/2011 01:01 PM, Reinhard Meyer wrote:
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Dear Michael Trimarchi,
...
This patch add the watchdog reset function to the atmel atsam9x architectures.
NAK.
Watchdog already exists at drivers/watchdog/at91sam9_wdt.c :)
Maybe its a bit of an obscure location... But it is already invented ;)
...

int re_enable = disable_interrupts();

writel(AT91_WDT_CR_WDRSTT | AT91_WDT_CR_KEY, &wdt->cr);

if (re_enable)
enable_interrupts();

Yes was obscured, and it is the only one :) there
Michael
...
Besides... why would we need to disable IRQs here, writel() is using one instruction
to write to the address?
Best Regards,
Reinhard