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1IMG Synchronous Peripheral Flash Interface (SPFI) controller2 3Required properties:4- compatible: Must be "img,spfi".5- reg: Must contain the base address and length of the SPFI registers.6- interrupts: Must contain the SPFI interrupt.7- clocks: Must contain an entry for each entry in clock-names.8 See ../clock/clock-bindings.txt for details.9- clock-names: Must include the following entries:10 - spfi: SPI operating clock11 - sys: SPI system interface clock12- dmas: Must contain an entry for each entry in dma-names.13 See ../dma/dma.txt for details.14- dma-names: Must include the following entries:15 - rx16 - tx17- cs-gpios: Must specify the GPIOs used for chipselect lines.18- #address-cells: Must be 1.19- #size-cells: Must be 0.20 21Optional properties:22- img,supports-quad-mode: Should be set if the interface supports quad mode23 SPI transfers.24- spfi-max-frequency: Maximum speed supported by the spfi block.25 26Example:27 28spi@18100f00 {29 compatible = "img,spfi";30 reg = <0x18100f00 0x100>;31 interrupts = <GIC_SHARED 22 IRQ_TYPE_LEVEL_HIGH>;32 clocks = <&spi_clk>, <&system_clk>;33 clock-names = "spfi", "sys";34 dmas = <&mdc 9 0xffffffff 0>, <&mdc 10 0xffffffff 0>;35 dma-names = "rx", "tx";36 37 #address-cells = <1>;38 #size-cells = <0>;39};40