brintos

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1Cortina Systems Gemini pin controller2 3This pin controller is found in the Cortina Systems Gemini SoC family,4see further arm/gemini.txt. It is a purely group-based multiplexing pin5controller.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-up13and pin configuration of individual pins.14 15Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes16and generic pin config nodes.17 18Supported configurations:19- skew-delay is supported on the Ethernet pins20- drive-strength with 4, 8, 12 or 16 mA as argument is supported for21  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