1* Oxford Semiconductor OXNAS SoC Family Pin Controller 2 3Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and 4../interrupt-controller/interrupts.txt for generic information regarding 5pin controller, GPIO, and interrupt bindings. 6 7OXNAS 'pin configuration node' is a node of a group of pins which can be 8used for a specific device or function. This node represents configurations of 9pins, optional function, and optional mux related configuration. 10 11Required properties for pin controller node: 12 - compatible: "oxsemi,ox810se-pinctrl" or "oxsemi,ox820-pinctrl" 13 - oxsemi,sys-ctrl: a phandle to the system controller syscon node 14 15Required properties for pin configuration sub-nodes: 16 - pins: List of pins to which the configuration applies. 17 18Optional properties for pin configuration sub-nodes: 19---------------------------------------------------- 20 - function: Mux function for the specified pins. 21 - bias-pull-up: Enable weak pull-up. 22 23Example: 24 25pinctrl: pinctrl { 26 compatible = "oxsemi,ox810se-pinctrl"; 27 28 /* Regmap for sys registers */ 29 oxsemi,sys-ctrl = <&sys>; 30 31 pinctrl_uart2: pinctrl_uart2 { 32 uart2a { 33 pins = "gpio31"; 34 function = "fct3"; 35 }; 36 uart2b { 37 pins = "gpio32"; 38 function = "fct3"; 39 }; 40 }; 41}; 42 43uart2: serial@900000 { 44 compatible = "ns16550a"; 45 reg = <0x900000 0x100000>; 46 clocks = <&sysclk>; 47 interrupts = <29>; 48 reg-shift = <0>; 49 fifo-size = <16>; 50 reg-io-width = <1>; 51 current-speed = <115200>; 52 no-loopback-test; 53 resets = <&reset 22>; 54 pinctrl-names = "default"; 55 pinctrl-0 = <&pinctrl_uart2>; 56}; 57