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From: "Mark A. Greer" <mgreer@mvista.com>
To: "Mark A. Greer" <mgreer@mvista.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [RFC] mpc5200 device tree bindings refinement
Date: Fri, 9 Feb 2007 10:50:29 -0700	[thread overview]
Message-ID: <20070209175029.GB23362@mag.az.mvista.com> (raw)
In-Reply-To: <20070209173149.GA23362@mag.az.mvista.com>

On Fri, Feb 09, 2007 at 10:31:49AM -0700, Mark A. Greer wrote:
> On Fri, Feb 09, 2007 at 12:30:09AM -0700, Grant Likely wrote:
> 
> Hi Grant,
> 
> > Much needed refinement of mpc5200 device tree binding specifications.
> > 
> > Short list:
> 
> <snip>
> 
> > - Specify reqiured 'cell-index' property to identify between multiple SOC
> >   devices of the same type.  (Useful for arbitrating shared register access)
> 
> <snip>
> 
> > +Important child node properties
> > +name		type		description
> > +----		----		-----------
> > +cell-index	int		When multiple devices are present, is the
> > +				index of the device in the hardware (ie. There
> > +				are 6 PSC on the 5200 numbered PSC1 to PSC6)
> > +				    PSC1 has 'cell-index = <0>'
> > +				    PSC4 has 'cell-index = <3>'
> > +
> 
> Dale Farnsworth and I have the exact same problem with the Marvell
> bridges (e.g., 2 MPSC ctlrs use different bits in the same reg).

Hrm, as I reread this, I may have misunderstood the purpose of cell-index. :(

  reply	other threads:[~2007-02-09 17:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-09  7:30 [RFC] mpc5200 device tree bindings refinement Grant Likely
2007-02-09 17:31 ` Mark A. Greer
2007-02-09 17:50   ` Mark A. Greer [this message]
2007-02-09 18:38   ` Grant Likely
     [not found]     ` <9696D7A991D0824DBA8DFAC74A9C5FA3029428E1@az33exm25.fsl.freescale.net>
     [not found]       ` <20070212205731.GC2729@mag.az.mvista.com>
2007-02-13 15:37         ` Grant Likely
2007-02-13 21:41           ` Benjamin Herrenschmidt
2007-02-13 22:25             ` Mark A. Greer
2007-02-12 20:34 ` Yoder Stuart-B08248
2007-02-12 20:44   ` Grant Likely
2007-02-12 21:07     ` Yoder Stuart-B08248
2007-02-12 21:55   ` Grant Likely

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