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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