linux/Documentation/devicetree/bindings/spi/spi_pl022.txt
Rob Herring 6add6967a4 devicetree: Add ARM pl022 spi controller binding doc
Add binding documentation for ARM's Primecell PL022 SPI controller.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-10-05 07:39:56 -05:00

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ARM PL022 SPI controller
Required properties:
- compatible : "arm,pl022", "arm,primecell"
- reg : Offset and length of the register set for the device
- interrupts : Should contain SPI controller interrupt
Optional properties:
- cs-gpios : should specify GPIOs used for chipselects.
The gpios will be referred to as reg = <index> in the SPI child nodes.
If unspecified, a single SPI device without a chip select can be used.