From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sat, 14 Feb 2009 09:31:12 +0100 Subject: [U-Boot] [PATCH 3/9 v4] i.MX31: support GPIO as a chip-select in the mxc_spi driver In-Reply-To: References: Message-ID: <20090214083112.GC13612@game.jcrosoft.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 09:26 Fri 13 Feb , Guennadi Liakhovetski wrote: > Some SPI devices have special requirements on chip-select handling. > With this patch we can use a GPIO as a chip-select and strictly follow > the SPI_XFER_BEGIN and SPI_XFER_END flags. > > Signed-off-by: Guennadi Liakhovetski > --- > > Changes since v1: long lines split, mx31_gpio_* calls now also defined if > CONFIG_MX31_GPIO is not defined (see patch 2/9), '!!' removed. > Changes since v2: added braces in a multiline if, switched to > ARRAY_SIZE(). > Changes since v3: moved GPIO chipselect initialisation into a separate > function, as suggested by Wolfgang Denk Evenif I do not like to only allow to use cpu GPIO as cs With the current SPI implementation Ack-by : Jean-Christophe PLAGNIOL-VILLARD Best Regards, J.