From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guennadi Liakhovetski Subject: Re: [PATCH 2/2] SPI: Add SPI driver for most known i.MX SoCs Date: Fri, 24 Jul 2009 12:07:40 +0200 (CEST) Message-ID: References: <1245235220-23816-1-git-send-email-s.hauer@pengutronix.de> <1245235220-23816-2-git-send-email-s.hauer@pengutronix.de> <1245235220-23816-3-git-send-email-s.hauer@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: David Brownell , spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW@public.gmane.org To: Sascha Hauer Return-path: In-Reply-To: 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 On Wed, 17 Jun 2009, Guennadi Liakhovetski wrote: > On Wed, 17 Jun 2009, Sascha Hauer wrote: > > > v2: Updated and tested on i.MX35 > > > > While there already is a SPI driver for i.MX1 in the tree there are > > good reasons to replace it: > > > > - The inkernel driver implements a full blown SPI driver, but > > the hardware can be fully supported using a bitbang driver. > > This greatly reduces the size and complexity of the driver. > > - The inkernel driver only works on i.MX1 SoCs. Unfortunately > > Freescale decided to randomly mix the register bits for each > > new SoC, This is quite hard to handle with the current driver > > since it has register accesses in many places. > > - The DMA API of the durrent driver is broken for arch-mx1 (as opposed > > to arch-imx) and nobody cared to fix it yet. > > > > This driver has been tested on i.MX1/i.MX27/i.MX35 with an AT25 type > > EEPROM and on i.MX27/i.MX31 with a Freescale MC13783 PMIC. > > > > Signed-off-by: Sascha Hauer > > Tested-by: Guennadi Liakhovetski > > on a i.MX31 with a DAC124S085. David - when are you planning to push this to next? Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ ------------------------------------------------------------------------------