From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Grandegger Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_CAN driver to 2.6.35 Date: Wed, 15 Sep 2010 14:11:06 +0200 Message-ID: <4C90B7DA.6030405@grandegger.com> References: <4C61EDE5.4030505@dsn.okisemi.com> <4C629FE5.6000204@pengutronix.de> <005f01cb533e$5c21d530$66f8800a@maildom.okisemi.com> <4C8E1918.5000007@pengutronix.de> <003a01cb53a6$4ca724d0$66f8800a@maildom.okisemi.com> <4C9078D3.50300@grandegger.com> <4C909518.5010309@hartkopp.net> <4C90A60E.5040900@grandegger.com> <4C90B63D.9030201@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Oliver Hartkopp , andrew.chih.howe.khor@intel.com, socketcan-core@lists.berlios.de, qi.wang@intel.com, netdev@vger.kernel.org, gregkh@suse.de, yong.y.wang@intel.com, Masayuki Ohtake , Morinaga , meego-dev@meego.com, arjan@linux.intel.com To: Marc Kleine-Budde Return-path: Received: from mail-out.m-online.net ([212.18.0.10]:46494 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752002Ab0IOMKW (ORCPT ); Wed, 15 Sep 2010 08:10:22 -0400 In-Reply-To: <4C90B63D.9030201@pengutronix.de> Sender: netdev-owner@vger.kernel.org List-ID: On 09/15/2010 02:04 PM, Marc Kleine-Budde wrote: > On 09/15/2010 12:55 PM, Wolfgang Grandegger wrote: >>> Just a remark: >>> >>> During the IDF the informations about the Topcliff Controller Hub have been >>> reworked, so that some of the documentation became available for the public: >>> >>> http://edc.intel.com/Platforms/Atom-E6xx/#hardware >>> >>> Especially the Datasheet for the Platform Controller Hub EG20T can be found: >>> >>> http://download.intel.com/embedded/chipsets/datasheet/324211.pdf >>> >>> In chapter 13 there are some details about the CAN controller. >> >> Ah, thanks for the link. The CAN controller seems then to be similar to >> the OKI MSM9225B. > > According to the datasheet for the msm9225 I found, the chip has got an > 8 bit interface (mmap'ed or spi). The Intel is 32 bit based (most, maybe > all, upper 16 bit are marked as reserverd). I said *similar*, especially in respect to ability of combining RX message objects to a fifo. Wolfgang.