Re: Periodic RTC interrupt

From: Ralf Baechle (ralf@uni-koblenz.de)
Date: Mon Feb 21 2000 - 21:28:14 EST


On Mon, Feb 21, 2000 at 08:37:17PM +0000, Alan Cox wrote:

> > I have a system (JavaStation-NC) where RTC refuses to supply an
> > interrupt due to, I assume, a design error. At the moment it
> > gets time from boot server with rdate. A later board (JavaStation-E)
> > works fine but the interrupt must be shared (SA_SHIRQ).
>
> The RTC IRQ is not connected on some embedded PC boards too. Its also
> connected to RESET on some of the smart ones so that the RTC provides the
> board watchdog.

The Indy uses the alarm feature of the RTC for automatic powerup at
alarm time.

  Ralf

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