From mboxrd@z Thu Jan 1 00:00:00 1970 From: martinwguy@gmail.com (Martin Guy) Date: Wed, 21 Apr 2010 15:53:53 +0100 Subject: SPI trouble on Colibri 270 (PXA)... In-Reply-To: <4BCEF3D4.2030704@viketoft.se> References: <4BCD96F0.5010506@viketoft.se> <4BCDC645.5090001@viketoft.se> <201004211144.41781.marek.vasut@gmail.com> <4BCEF3D4.2030704@viketoft.se> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 4/21/10, Jakob Viketoft wrote: > Martin Guy wrote: > > On 4/21/10, Eric Miao wrote: > > > I thought we were talking about SPI? > > > > We are. It affects boards that have a single SD/MMC card on the SPI > > bus and use SFRMOUT as the chip select line, which impacts how the SPI > > driver needs to handle multi-part messages without dropping CS between > > transfers > > Does this mean that this is a know issue with the pxa2xx spi driver? At the > moment I'm rather pressed for time and have instead opted for compressing > the two transfers (read command and actual read) into one. There is a slight > memory overhead in writing, but nothing that will impact our system... No, it means I'm on the wrong thread and I'm talking complete rubbish. That was about the ep93x-spi-mmc problems in the next room. Sorry about that. Just ignore me, I'm confused... M