linux-stable/Documentation/devicetree/bindings/spi/spi-bcm63xx.txt
Jonas Gorski 54e43b6085 spi/bcm63xx: document bcm63xx SPI devicetree bindings
Add documentation for the bindings of the low speed SPI controller found
on most bcm63xx SoCs.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 15:04:15 -08:00

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Binding for Broadcom BCM6348/BCM6358 SPI controller
Required properties:
- compatible: must contain one of "brcm,bcm6348-spi", "brcm,bcm6358-spi".
- reg: Base address and size of the controllers memory area.
- interrupts: Interrupt for the SPI block.
- clocks: phandle of the SPI clock.
- clock-names: has to be "spi".
- #address-cells: <1>, as required by generic SPI binding.
- #size-cells: <0>, also as required by generic SPI binding.
Optional properties:
- num-cs: some controllers have less than 8 cs signals. Defaults to 8
if absent.
Child nodes as per the generic SPI binding.
Example:
spi@10000800 {
compatible = "brcm,bcm6368-spi", "brcm,bcm6358-spi";
reg = <0x10000800 0x70c>;
interrupts = <1>;
clocks = <&clkctl 9>;
clock-names = "spi";
num-cs = <5>;
#address-cells = <1>;
#size-cells = <0>;
};