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Date: Mon, 19 Jun 2006 13:19:59 -0700
From: "Mark A. Greer" <mgreer@mvista.com>
To: Olof Johansson <olof@lixom.net>
Subject: Re: [PATCH] mpic: add support for serial mode interrupts
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On Mon, Jun 19, 2006 at 03:11:21PM -0500, Olof Johansson wrote:
> Hi,
> 
> On Mon, Jun 19, 2006 at 01:08:11PM -0700, Mark A. Greer wrote:
> > MPC10x-style interrupt controllers have a serial mode that allows
> > several interrupts to be clocked in through one INT signal.
> [...]
> > +	/* For serial interrupts & set clock ratio */
> > +	if (flags & MPIC_SERIAL_MODE)
> > +		mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1,
> > +			mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1)
> > +				| (1<<27) | (0x7<<28));
> 
> Can you define some constants so others can see just what the bits mean
> without digging up documentation, instead of just doing magic numbers?

Yeah, I can probably do that...  :)

Mark