1Device-tree bindings for AST2600 FSI master 2------------------------------------------- 3 4The AST2600 contains two identical FSI masters. They share a clock and have a 5separate interrupt line and output pins. 6 7Required properties: 8 - compatible: "aspeed,ast2600-fsi-master" 9 - reg: base address and length 10 - clocks: phandle and clock number 11 - interrupts: platform dependent interrupt description 12 - pinctrl-0: phandle to pinctrl node 13 - pinctrl-names: pinctrl state 14 15Optional properties: 16 - cfam-reset-gpios: GPIO for CFAM reset 17 18 - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled) 19 - fsi-mux-gpios: GPIO for detecting the desired FSI mux state 20 21 22Examples: 23 24 fsi-master { 25 compatible = "aspeed,ast2600-fsi-master", "fsi-master"; 26 reg = <0x1e79b000 0x94>; 27 interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>; 28 pinctrl-names = "default"; 29 pinctrl-0 = <&pinctrl_fsi1_default>; 30 clocks = <&syscon ASPEED_CLK_GATE_FSICLK>; 31 32 fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>; 33 fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>; 34 35 cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>; 36 }; 37