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xilinx_spi: add support for the DS570 IP.

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This patch adds in support for the DS570 IP.

It's register compatible with the DS464, but adds support for 8/16/32 SPI.

The 8/16/32 support is added by attaching callbacks reading/writing the
proper amount of data. To indicate to the driver which amount of bits
to use a new field is introduced in the platform data struct.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: John Linn <John.Linn@xilinx.com>
Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Richard Röjfors
2009-11-13 12:28:55 +01:00
committed by Grant Likely
parent 86fc593599
commit c9da2e1255
4 changed files with 95 additions and 34 deletions
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1
drivers/spi/xilinx_spi_of.c
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@@ -72,6 +72,7 @@ static int __devinit xilinx_spi_of_probe(struct of_device *ofdev,
return -EINVAL;
}
pdata->num_chipselect = *prop;
pdata->bits_per_word = 8;
master = xilinx_spi_init(&ofdev->dev, &r_mem, r_irq.start, -1);
if (!master)
return -ENODEV;