From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zipcode.az.mvista.com (unknown [65.200.49.156]) by ozlabs.org (Postfix) with ESMTP id 4C250DDED2 for ; Sat, 10 Feb 2007 04:49:30 +1100 (EST) Date: Fri, 9 Feb 2007 10:50:29 -0700 From: "Mark A. Greer" To: "Mark A. Greer" Subject: Re: [RFC] mpc5200 device tree bindings refinement Message-ID: <20070209175029.GB23362@mag.az.mvista.com> References: <11710062092006-git-send-email-grant.likely@secretlab.ca> <20070209173149.GA23362@mag.az.mvista.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070209173149.GA23362@mag.az.mvista.com> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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: > > > > > - Specify reqiured 'cell-index' property to identify between multiple SOC > > devices of the same type. (Useful for arbitrating shared register access) > > > > > +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. :(