linux_old1/Documentation/devicetree/bindings/spi/spi-meson.txt

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Amlogic Meson SPI controllers
* SPIFC (SPI Flash Controller)
The Meson SPIFC is a controller optimized for communication with SPI
NOR memories, without DMA support and a 64-byte unified transmit /
receive buffer.
Required properties:
- compatible: should be "amlogic,meson6-spifc"
- reg: physical base address and length of the controller registers
- clocks: phandle of the input clock for the baud rate generator
- #address-cells: should be 1
- #size-cells: should be 0
spi@c1108c80 {
compatible = "amlogic,meson6-spifc";
reg = <0xc1108c80 0x80>;
clocks = <&clk81>;
#address-cells = <1>;
#size-cells = <0>;
};