1Cortina Systems Gemini pin controller 2 3This pin controller is found in the Cortina Systems Gemini SoC family, 4see further arm/gemini.txt. It is a purely group-based multiplexing pin 5controller. 6 7The pin controller node must be a subnode of the system controller node. 8 9Required properties: 10- compatible: "cortina,gemini-pinctrl" 11 12Subnodes of the pin controller contain pin control multiplexing set-up 13and pin configuration of individual pins. 14 15Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes 16and generic pin config nodes. 17 18Supported configurations: 19- skew-delay is supported on the Ethernet pins 20- drive-strength with 4, 8, 12 or 16 mA as argument is supported for 21 entire groups on the groups "idegrp", "gmii_gmac0_grp", "gmii_gmac1_grp" 22 and "pcigrp". 23 24Example: 25 26 27syscon { 28 compatible = "cortina,gemini-syscon"; 29 ... 30 pinctrl { 31 compatible = "cortina,gemini-pinctrl"; 32 pinctrl-names = "default"; 33 pinctrl-0 = <&dram_default_pins>, <&system_default_pins>, 34 <&vcontrol_default_pins>; 35 36 dram_default_pins: pinctrl-dram { 37 mux { 38 function = "dram"; 39 groups = "dramgrp"; 40 }; 41 }; 42 rtc_default_pins: pinctrl-rtc { 43 mux { 44 function = "rtc"; 45 groups = "rtcgrp"; 46 }; 47 }; 48 power_default_pins: pinctrl-power { 49 mux { 50 function = "power"; 51 groups = "powergrp"; 52 }; 53 }; 54 system_default_pins: pinctrl-system { 55 mux { 56 function = "system"; 57 groups = "systemgrp"; 58 }; 59 }; 60 (...) 61 uart_default_pins: pinctrl-uart { 62 mux { 63 function = "uart"; 64 groups = "uartrxtxgrp"; 65 }; 66 }; 67 }; 68}; 69