From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kumar Gala Subject: Re: standard property to convey device dma address width? Date: Tue, 17 Aug 2010 15:54:19 -0500 Message-ID: <0BF1E97C-2531-4BE3-9EED-2EB8E12C76D8@kernel.crashing.org> References: <5A878376-AFCC-4CB0-A0E9-F2F497066FD5@kernel.crashing.org> <9696D7A991D0824DBA8DFAC74A9C5FA3065BD776@az33exm25.fsl.freescale.net> Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <9696D7A991D0824DBA8DFAC74A9C5FA3065BD776-ofAVchDyotYzzZk0BCvKg5jmvxFtTJ+o0e7PPNI6Mm0@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org To: Yoder Stuart-B08248 Cc: devicetree-discuss List-Id: devicetree@vger.kernel.org On Aug 17, 2010, at 3:50 PM, Yoder Stuart-B08248 wrote: > > >> -----Original Message----- >> From: Kumar Gala [mailto:galak-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org] >> Sent: Monday, August 16, 2010 11:02 AM >> To: devicetree-discuss >> Cc: Yoder Stuart-B08248 >> Subject: standard property to convey device dma address width? >> >> Do we or should we have a standard property to convey that address >> width a device is capable of? > > Is this a case of where a device can only address something like > 32-bits, and you want some kind of per-device property to > convey this? > > Stuart Exactly. With SOC devices the address width different devices on the SOC can address may (and does) very. - k