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spi: armada-3700: Add documentation for the Armada 3700 SPI Controller

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This adds the devicetree bindings documentation for the SPI controller
present in the Marvell Armada 3700 SoCs.

Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Romain Perier 2016-12-08 15:58:45 +01:00 committed by Mark Brown
parent 1001354ca3
commit 4049537742
1 changed files with 25 additions and 0 deletions
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Documentation/devicetree/bindings/spi/spi-armada-3700.txt Normal file
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* Marvell Armada 3700 SPI Controller
Required Properties:
- compatible: should be "marvell,armada-3700-spi"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: The interrupt number. The interrupt specifier format depends on
the interrupt controller and of its driver.
- clocks: Must contain the clock source, usually from the North Bridge clocks.
- num-cs: The number of chip selects that is supported by this SPI Controller
- #address-cells: should be 1.
- #size-cells: should be 0.
Example:
spi0: spi@10600 {
compatible = "marvell,armada-3700-spi";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x10600 0x5d>;
clocks = <&nb_perih_clk 7>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
num-cs = <4>;
};