From: David Brownell Subject: [patch 2.6.27-rc7] orion_spi: handle 88F6183 erratum Date: Wed, 24 Sep 2008 22:14:43 -0700 Message-ID: <200809242214.43198.david-b@pacbell.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Andrew Morton Return-path: Content-Disposition: inline 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 From: Lennert Buytenhek The patch below adds support to orion_spi for the 88F6183 ARM SoC by adding code to work around a 6183-specific erratum. Signed-off-by: Lennert Buytenhek Signed-off-by: David Brownell --- this is for the 2.6.28-rc0 merge window ... drivers/spi/orion_spi.c | 5 +++++ include/linux/spi/orion_spi.h | 1 + 2 files changed, 6 insertions(+) --- a/drivers/spi/orion_spi.c +++ b/drivers/spi/orion_spi.c @@ -364,6 +364,11 @@ static int orion_spi_setup(struct spi_de return -EINVAL; } + /* Fix ac timing if required. */ + if (orion_spi->spi_info->enable_clock_fix) + orion_spi_setbits(orion_spi, ORION_SPI_IF_CONFIG_REG, + (1 << 14)); + if (spi->bits_per_word == 0) spi->bits_per_word = 8; --- a/include/linux/spi/orion_spi.h +++ b/include/linux/spi/orion_spi.h @@ -11,6 +11,7 @@ struct orion_spi_info { u32 tclk; /* no support yet */ + u32 enable_clock_fix; }; ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/