Andestech ATCSPI200 SPI controller Device Tree Bindings
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ATCSPI200 is a Serial Peripheral Interface (SPI) controller
which serves as a SPI master or a SPI slave.
It is often be embedded in AE3XX and AE250 platforms.
Required properties:
- compatible: has to be "andestech,atcspi200".
- reg: Base address and size of the controllers memory area.
- #address-cells: <1>, as required by generic SPI binding.
- #size-cells: <0>, also as required by generic SPI binding.
- interrupts: Property with a value describing the interrupt number.
- clocks: Clock phandles (see clock bindings for details).
- spi-max-frequency: Maximum SPI clocking speed of device in Hz.
Optional properties:
- num-cs: Number of chip selects used.
Example:
spi: spi@f0b00000 {
compatible = "andestech,atcspi200";
reg = <0xf0b00000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
num-cs = <1>;
clocks = <&spiclk>;
interrupts = <3 4>;
flash@0 {
compatible = "jedec,spi-nor";
spi-max-frequency = <50000000>;
reg = <0>;
spi-cpol;
spi-cpha;
};
};