RTEMS | aarch64/raspberrypi: Add Watchdog Timer driver (!120)

[Kinsey Moore (@opticron)]

Kinsey Moore started a new discussion on bsps/aarch64/raspberrypi/start/watchdog.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/120#note_110309

 > +#include <bsp/raspberrypi.h>
 > +#include <bsp/watchdog.h>
 > +
 > +#define PM_WDOG BCM2835_REG(BCM2711_PM_WDOG)
 > +#define PM_RSTC BCM2835_REG(BCM2711_PM_RSTC)
 > +
 > +int raspberrypi_watchdog_timeout;
 > +
 > +void raspberrypi_watchdog_init()
 > +{
 > +  raspberrypi_watchdog_timeout = 0;
 > +}
 > +
 > +void raspberrypi_watchdog_start(unsigned int timeout)
 > +{
 > +  raspberrypi_watchdog_timeout = timeout;

Are there any values of timeout which are invalid? The documentation claims that timeout is in seconds, but I would expect some kind of conversion to occur here or in the register write below.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/120#note_110309
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