On 4 June 2015 at 00:53, Marek Vasut <marex@xxxxxxx> wrote: > On Wednesday, June 03, 2015 at 11:26:39 PM, Michal Suchanek wrote: >> Hello, > > Hi, > >> this patch series makes it possible to access the SPI NOR flash in the >> Samsung XE303 'Snow' Chromebook. >> >> Unfortunately not all issues are resolved. To work around an issue with the >> pl330 dma engine I respun the patch for limiting transfer size in m25p80 >> driver. > > Looks like fixing a bug at the wrong place to me ... > >> As the flash does not contain any sane filesystem and is only likely to be >> accessed with mtd_debug or similar tool the limit of the dma engine is >> easily reached. Filesystems using shorter data transfers are less likely >> to be affected. > > Sounds like the DMA engine driver should be fixed. I looked at the pl330 datasheet and don't see anything obviusly wrong with the pl330 driver in Linux. Ideally it would be fixed but I have no idea what's wrong with it. Thanks Michal -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
