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      1 // SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
      2 // Copyright 2021 Jonathan Neuschfer
      3 
      4 /dts-v1/;
      5 
      6 /* The last 16 MiB are dedicated to the GPU */
      7 /memreserve/ 0x07000000 0x01000000;
      8 
      9 #include "nuvoton-wpcm450.dtsi"
     10 
     11 #include <dt-bindings/input/linux-event-codes.h>
     12 #include <dt-bindings/gpio/gpio.h>
     13 
     14 / {
     15 	model = "Supermicro X9SCi-LN4F BMC";
     16 	compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450";
     17 
     18 	aliases {
     19 		serial0 = &serial0;
     20 		serial1 = &serial1;
     21 	};
     22 
     23 	chosen {
     24 		stdout-path = "serial0:115200n8";
     25 	};
     26 
     27 	memory@0 {
     28 		device_type = "memory";
     29 		reg = <0 0x08000000>; /* 128 MiB */
     30 	};
     31 
     32 	gpio-keys {
     33 		compatible = "gpio-keys";
     34 		pinctrl-names = "default";
     35 		pinctrl-0 = <&key_pins>;
     36 
     37 		button-uid {
     38 			label = "UID button";
     39 			linux,code = <KEY_HOME>;
     40 			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
     41 		};
     42 	};
     43 
     44 	gpio-leds {
     45 		compatible = "gpio-leds";
     46 		pinctrl-names = "default";
     47 		pinctrl-0 = <&led_pins>;
     48 
     49 		led-uid {
     50 			label = "UID";
     51 			gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
     52 		};
     53 
     54 		led-heartbeat {
     55 			label = "heartbeat";
     56 			gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
     57 		};
     58 	};
     59 };
     60 
     61 &fiu {
     62 	status = "okay";
     63 
     64 	flash@0 {
     65 		reg = <0>;
     66 		compatible = "jedec,spi-nor";
     67 	};
     68 };
     69 
     70 &gpio0 {
     71 	gpio-line-names =
     72 		/* 0 */ "", "host-reset-control-n", "", "", "", "", "", "",
     73 		/* 8 */ "", "", "", "", "power-chassis-control-n", "", "uid-button", "";
     74 };
     75 
     76 &gpio1 {
     77 	gpio-line-names =
     78 		/* 0 */ "", "", "", "", "led-heartbeat", "", "", "led-uid",
     79 		/* 8 */ "", "", "", "", "", "", "", "";
     80 };
     81 
     82 &gpio4 {
     83 	gpio-line-names =
     84 		/* 0 */ "", "", "", "", "", "", "", "",
     85 		/* 8 */ "", "", "", "", "", "", "", "power-chassis-good";
     86 };
     87 
     88 &pinctrl {
     89 	key_pins: mux-keys {
     90 		groups = "gspi", "sspi";
     91 		function = "gpio";
     92 	};
     93 
     94 	led_pins: mux-leds {
     95 		groups = "hg3", "hg0", "pwm4";
     96 		function = "gpio";
     97 	};
     98 };
     99 
    100 &serial0 {
    101 	/*
    102 	 * Debug serial port. TX is exposed on the right pad of unpopulated
    103 	 * resistor R1247, RX on the right pad of R1162.
    104 	 */
    105 	status = "okay";
    106 };
    107 
    108 &serial1 {
    109 	/* "Serial over LAN" port. Connected to ttyS2 of the host system. */
    110 	status = "okay";
    111 };
    112