From a4a99fffd8a006d99958e5bcded36d7e7218bd36 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 8 Aug 2012 14:35:55 -0700 Subject: am335x evm: Enable support for spi0 Signed-off-by: Tom Rini --- drivers/spi/omap3_spi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c index 47f9e56f42..e40a632caa 100644 --- a/drivers/spi/omap3_spi.c +++ b/drivers/spi/omap3_spi.c @@ -173,8 +173,18 @@ int spi_claim_bus(struct spi_slave *slave) /* standard 4-wire master mode: SCK, MOSI/out, MISO/in, nCS * REVISIT: this controller could support SPI_3WIRE mode. */ +#ifdef CONFIG_AM33XX + /* + * The reference design on AM33xx has D0 and D1 wired up opposite + * of how it has been done on previous platforms. We assume that + * custom hardware will also follow this convention. + */ + conf &= OMAP3_MCSPI_CHCONF_DPE0; + conf |= ~(OMAP3_MCSPI_CHCONF_IS|OMAP3_MCSPI_CHCONF_DPE1); +#else conf &= ~(OMAP3_MCSPI_CHCONF_IS|OMAP3_MCSPI_CHCONF_DPE1); conf |= OMAP3_MCSPI_CHCONF_DPE0; +#endif /* wordlength */ conf &= ~OMAP3_MCSPI_CHCONF_WL_MASK; -- cgit v1.2.1