| Device-tree bindings for AST2600 FSI master |
| ------------------------------------------- |
| |
| The AST2600 contains two identical FSI masters. They share a clock and have a |
| separate interrupt line and output pins. |
| |
| Required properties: |
| - compatible: "aspeed,ast2600-fsi-master" |
| - reg: base address and length |
| - clocks: phandle and clock number |
| - interrupts: platform dependent interrupt description |
| - pinctrl-0: phandle to pinctrl node |
| - pinctrl-names: pinctrl state |
| |
| Optional properties: |
| - cfam-reset-gpios: GPIO for CFAM reset |
| |
| - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled) |
| - fsi-mux-gpios: GPIO for detecting the desired FSI mux state |
| |
| |
| Examples: |
| |
| fsi-master { |
| compatible = "aspeed,ast2600-fsi-master", "fsi-master"; |
| reg = <0x1e79b000 0x94>; |
| interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&pinctrl_fsi1_default>; |
| clocks = <&syscon ASPEED_CLK_GATE_FSICLK>; |
| |
| fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>; |
| fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>; |
| |
| cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>; |
| }; |
