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omap3_spi: Set the correct CS number for AM33xx 

Changed the number of CS for AM33xx boards to 2.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Teresa Gámez 2013-06-19 09:09:44 +02:00 committed by Sascha Hauer
parent e3de0065c4
commit 1806c82ce8
1 changed files with 10 additions and 2 deletions
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12
drivers/spi/omap3_spi.c
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@ -357,16 +357,24 @@ static int omap3_spi_probe(struct device_d *dev)
* McSPI3 has 2 CS (bus 3, cs 0 - 1)
* McSPI4 has 1 CS (bus 4, cs 0)
*
* AM335x McSPI has 2 busses with 2 chip selects:
* McSPI0 has 2 CS (bus 0, cs 0 - 1)
* McSPI1 has 2 CS (bus 1, cs 0 - 1)
*
* The board code has to make sure that it does not use
* invalid buses or chip selects.
*/
master->bus_num = dev->id;
master->num_chipselect = 4;
if (IS_ENABLED(CONFIG_ARCH_OMAP3))
master->num_chipselect = 4;
else
master->num_chipselect = 2;
master->setup = omap3_spi_setup;
master->transfer = omap3_spi_transfer;
omap3_master->regs = dev_request_mem_region(dev, 0);;
omap3_master->regs = dev_request_mem_region(dev, 0);
spi_reset(master);