40 lines
1.2 KiB
Plaintext
Executable file
40 lines
1.2 KiB
Plaintext
Executable file
IMG Synchronous Peripheral Flash Interface (SPFI) controller
|
|
|
|
Required properties:
|
|
- compatible: Must be "img,spfi".
|
|
- reg: Must contain the base address and length of the SPFI registers.
|
|
- interrupts: Must contain the SPFI interrupt.
|
|
- clocks: Must contain an entry for each entry in clock-names.
|
|
See ../clock/clock-bindings.txt for details.
|
|
- clock-names: Must include the following entries:
|
|
- spfi: SPI operating clock
|
|
- sys: SPI system interface clock
|
|
- dmas: Must contain an entry for each entry in dma-names.
|
|
See ../dma/dma.txt for details.
|
|
- dma-names: Must include the following entries:
|
|
- rx
|
|
- tx
|
|
- cs-gpios: Must specify the GPIOs used for chipselect lines.
|
|
- #address-cells: Must be 1.
|
|
- #size-cells: Must be 0.
|
|
|
|
Optional properties:
|
|
- img,supports-quad-mode: Should be set if the interface supports quad mode
|
|
SPI transfers.
|
|
- spfi-max-frequency: Maximum speed supported by the spfi block.
|
|
|
|
Example:
|
|
|
|
spi@18100f00 {
|
|
compatible = "img,spfi";
|
|
reg = <0x18100f00 0x100>;
|
|
interrupts = <GIC_SHARED 22 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&spi_clk>, <&system_clk>;
|
|
clock-names = "spfi", "sys";
|
|
dmas = <&mdc 9 0xffffffff 0>, <&mdc 10 0xffffffff 0>;
|
|
dma-names = "rx", "tx";
|
|
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
};
|