From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Guy Subject: Re: [PATCH v2 2/3] ep93xx: added chip revision reading function Date: Fri, 26 Mar 2010 15:40:01 +0000 Message-ID: <56d259a01003260840sacc120ep7fd74ab2c33a8c4a@mail.gmail.com> References: <0D753D10438DA54287A00B02708426976368AC725D@AUSP01VMBX24.collaborationhost.net> <20100325090638.GA20512@gw.healthdatacare.com> <0D753D10438DA54287A00B02708426976368F66FD1@AUSP01VMBX24.collaborationhost.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary=001517588b980b33d60482b5fa5e Cc: "spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" , Mika Westerberg , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" To: H Hartley Sweeten Return-path: In-Reply-To: <0D753D10438DA54287A00B02708426976368F66FD1-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-spi.vger.kernel.org --001517588b980b33d60482b5fa5e Content-Type: text/plain; charset=ISO-8859-1 On 3/25/10, H Hartley Sweeten wrote: > For parts 1 and 3. > > I tried testing them in my setup with the mmc_spi.c and sst25l.c drivers. Both > did not work. For some reason the data read is always either 0x00 or 0xff. > > I will try to get some time this week/weekend to look into this. I got these working with the Sim.One board without modification. The data rate when dd'ing from the block device is slightly slower than the Cirrus Logic patches (222kB/s instead of 235kB/s), and I got the same kind of write errors at the same frequency as we did with the Cirrus code, but this seems to be some problem with our board. Unlike the CIrrus code, it successfully retries failed multi-block read requests using single-block reads. In case it's useful to you, I attach the first hack of the modifications I made to the board description file I'm not sure it's right, and I haven't coded in the use of the MMC-card-present GPIO interrupt line yet, but it "seems to work" ^TM M --001517588b980b33d60482b5fa5e Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev --001517588b980b33d60482b5fa5e Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ spi-devel-general mailing list spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org https://lists.sourceforge.net/lists/listinfo/spi-devel-general --001517588b980b33d60482b5fa5e--