~sircmpwn/linux

linux/arch/arm/boot/dts/imx28-duckbill-2-485.dts -rw-r--r-- 4.0 KiB
a99d8080 — Linus Torvalds Linux 5.4-rc6 11 months ago
                                                                                
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2015-2017 I2SE GmbH <info@i2se.com>
 * Copyright (C) 2016 Michael Heimpold <mhei@heimpold.de>
 */

/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
#include "imx28.dtsi"

/ {
	model = "I2SE Duckbill 2 485";
	compatible = "i2se,duckbill-2-485", "i2se,duckbill-2", "fsl,imx28";

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x08000000>;
	};

	apb@80000000 {
		apbh@80000000 {
			ssp0: spi@80010000 {
				compatible = "fsl,imx28-mmc";
				pinctrl-names = "default";
				pinctrl-0 = <&mmc0_8bit_pins_a
					&mmc0_cd_cfg &mmc0_sck_cfg>;
				bus-width = <8>;
				vmmc-supply = <&reg_3p3v>;
				status = "okay";
				non-removable;
			};

			ssp2: spi@80014000 {
				compatible = "fsl,imx28-mmc";
				pinctrl-names = "default";
				pinctrl-0 = <&mmc2_4bit_pins_b
					&mmc2_cd_cfg &mmc2_sck_cfg_b>;
				bus-width = <4>;
				vmmc-supply = <&reg_3p3v>;
				status = "okay";
			};

			pinctrl@80018000 {
				pinctrl-names = "default";
				pinctrl-0 = <&hog_pins_a>;

				hog_pins_a: hog@0 {
					reg = <0>;
					fsl,pinmux-ids = <
						MX28_PAD_LCD_D17__GPIO_1_17    /* Revision detection */
					>;
					fsl,drive-strength = <MXS_DRIVE_4mA>;
					fsl,voltage = <MXS_VOLTAGE_HIGH>;
					fsl,pull-up = <MXS_PULL_DISABLE>;
				};

				mac0_phy_reset_pin: mac0-phy-reset@0 {
					reg = <0>;
					fsl,pinmux-ids = <
						MX28_PAD_GPMI_ALE__GPIO_0_26    /* PHY Reset */
					>;
					fsl,drive-strength = <MXS_DRIVE_4mA>;
					fsl,voltage = <MXS_VOLTAGE_HIGH>;
					fsl,pull-up = <MXS_PULL_DISABLE>;
				};

				mac0_phy_int_pin: mac0-phy-int@0 {
					reg = <0>;
					fsl,pinmux-ids = <
						MX28_PAD_GPMI_D07__GPIO_0_7    /* PHY Interrupt */
					>;
					fsl,drive-strength = <MXS_DRIVE_4mA>;
					fsl,voltage = <MXS_VOLTAGE_HIGH>;
					fsl,pull-up = <MXS_PULL_DISABLE>;
				};

				led_pins: leds@0 {
					reg = <0>;
					fsl,pinmux-ids = <
						MX28_PAD_SAIF0_MCLK__GPIO_3_20
						MX28_PAD_SAIF0_LRCLK__GPIO_3_21
						MX28_PAD_I2C0_SCL__GPIO_3_24
						MX28_PAD_I2C0_SDA__GPIO_3_25
					>;
					fsl,drive-strength = <MXS_DRIVE_4mA>;
					fsl,voltage = <MXS_VOLTAGE_HIGH>;
					fsl,pull-up = <MXS_PULL_DISABLE>;
				};
			};
		};

		apbx@80040000 {
			lradc@80050000 {
				status = "okay";
			};

			auart0: serial@8006a000 {
				pinctrl-names = "default";
				pinctrl-0 = <&auart0_2pins_a>;
				status = "okay";
			};

			duart: serial@80074000 {
				pinctrl-names = "default";
				pinctrl-0 = <&duart_pins_a>;
				status = "okay";
			};

			usbphy0: usbphy@8007c000 {
				status = "okay";
			};
		};
	};

	ahb@80080000 {
		usb0: usb@80080000 {
			status = "okay";
			dr_mode = "peripheral";
		};

		mac0: ethernet@800f0000 {
			phy-mode = "rmii";
			pinctrl-names = "default";
			pinctrl-0 = <&mac0_pins_a>, <&mac0_phy_reset_pin>;
			phy-supply = <&reg_3p3v>;
			phy-reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
			phy-reset-duration = <25>;
			phy-handle = <&ethphy>;
			status = "okay";

			mdio {
				#address-cells = <1>;
				#size-cells = <0>;

				ethphy: ethernet-phy@0 {
					compatible = "ethernet-phy-ieee802.3-c22";
					reg = <0>;
					pinctrl-names = "default";
					pinctrl-0 = <&mac0_phy_int_pin>;
					interrupt-parent = <&gpio0>;
					interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
					max-speed = <100>;
				};
			};
		};
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "3P3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&led_pins>;

		status-red {
			label = "duckbill:red:status";
			gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "default-on";
		};

		status-green {
			label = "duckbill:green:status";
			gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
		};

		rs485-red {
			label = "duckbill:red:rs485";
			gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;
		};

		rs485-green {
			label = "duckbill:green:rs485";
			gpios = <&gpio3 25 GPIO_ACTIVE_LOW>;
		};
	};
};