| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Serial Peripheral Interface on Cirrus Logic CL-PS71xx, EP72xx, EP73xx |
| 2 | |
| 3 | Required properties |
| 4 | - #address-cells: must be <1> |
| 5 | - #size-cells: must be <0> |
| 6 | - compatible: should include "cirrus,ep7209-spi" |
| 7 | - reg: Address and length of one register range |
| 8 | - interrupts: one interrupt line |
| 9 | - clocks: One entry, refers to the SPI bus clock |
| 10 | - cs-gpios: Specifies the gpio pins to be used for chipselects. |
| 11 | See: Documentation/devicetree/bindings/spi/spi-bus.txt |
| 12 | |
| 13 | An additional register is present in the system controller, |
| 14 | which is assumed to be in the same device tree, with and marked |
| 15 | as compatible with "cirrus,ep7209-syscon3". |
| 16 | |
| 17 | Example: |
| 18 | |
| 19 | spi@80000500 { |
| 20 | #address-cells = <1>; |
| 21 | #size-cells = <0>; |
| 22 | compatible = "cirrus,ep7209-spi"; |
| 23 | reg = <0x80000500 0x4>; |
| 24 | interrupts = <15>; |
| 25 | clocks = <&clks CLPS711X_CLK_SPI>; |
| 26 | }; |
| 27 | |
| 28 | syscon3: syscon@80002200 { |
| 29 | compatible = "cirrus,ep7209-syscon3", "syscon"; |
| 30 | reg = <0x80002200 0x40>; |
| 31 | }; |
| 32 | |