summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/at91-ariag25.dts
blob: e3e14b7e25aa6b68a008825254d2bfc6b9bb5da0 (plain)
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
185
186
187
188
189
190
/*
 * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
 *
 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
 *                    Robert Nelson <robertcnelson@gmail.com>
 *
 * Licensed under GPLv2 or later.
 */
/dts-v1/;
#include "at91sam9g25.dtsi"

/ {
	model = "Acme Systems Aria G25";
	compatible = "acme,ariag25", "atmel,at91sam9x5ek",
		     "atmel,at91sam9x5", "atmel,at91sam9";

	aliases {
		serial0 = &dbgu;
		serial1 = &usart0;
		serial2 = &usart1;
		serial3 = &usart2;
		serial4 = &usart3;
		serial5 = &uart0;
		serial6 = &uart1;
	};

	chosen {
		bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
	};

	memory {
		/* 128 MB, change this for 256 MB revision */
		reg = <0x20000000 0x8000000>;
	};

	clocks {
		slow_xtal {
			clock-frequency = <32768>;
		};

		main_xtal {
			clock-frequency = <12000000>;
		};
	};

	ahb {
		apb {
			mmc0: mmc@f0008000 {
				/* N.B. Aria has no SD card detect (CD), assumed present */

				pinctrl-0 = <
					&pinctrl_mmc0_slot0_clk_cmd_dat0
					&pinctrl_mmc0_slot0_dat1_3>;
				status = "okay";
				slot@0 {
					reg = <0>;
					bus-width = <4>;
				};
			};

			tcb0: timer@f8008000 {
				timer@0 {
					compatible = "atmel,tcb-timer";
					reg = <0>;
				};

				timer@1 {
					compatible = "atmel,tcb-timer";
					reg = <1>;
				};
			};

			i2c0: i2c@f8010000 {
				status = "okay";
			};

			i2c1: i2c@f8014000 {
				status = "okay";
			};

			/* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */

			usart0: serial@f801c000 {
				pinctrl-0 = <&pinctrl_usart0
					     &pinctrl_usart0_rts
					     &pinctrl_usart0_cts>;
				status = "okay";
			};

			usart1: serial@f8020000 {
				pinctrl-0 = <&pinctrl_usart1
					     /* &pinctrl_usart1_rts */
					     /* &pinctrl_usart1_cts */
					    >;
				status = "okay";
			};

			usart2: serial@f8024000 {
				/* cannot activate RTS2+CTS2, clash with
				 * ethernet on PB0 and PB1 */
				pinctrl-0 = <&pinctrl_usart2>;
				status = "okay";
			};

			usart3: serial@f8028000 {
				compatible = "atmel,at91sam9260-usart";
				reg = <0xf8028000 0x200>;
				interrupts = <8 4 5>;
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_usart3
					     /* &pinctrl_usart3_rts */
					     /* &pinctrl_usart3_cts */
					    >;
				status = "okay";
			};

			macb0: ethernet@f802c000 {
				phy-mode = "rmii";
				/*
				 * following can be overwritten by bootloader:
				 * for example u-boot 'ftd set' command
				 */
				local-mac-address = [00 00 00 00 00 00];
				status = "okay";
			};

			/*
			 * UART0/1 pins are marked as GPIO on
			 * Aria documentation.
			 * Change to "okay" if you need additional serial ports
			 */
			uart0: serial@f8040000 {
				status = "disabled";
			};

			uart1: serial@f8044000 {
				status = "disabled";
			};

			adc0: adc@f804c000 {
				status = "okay";
				atmel,adc-channels-used = <0xf>;
			};

			dbgu: serial@fffff200 {
				status = "okay";
			};

			pinctrl@fffff400 {
				w1_0 {
					pinctrl_w1_0: w1_0-0 {
						atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
					};
				};
			};

			rtc@fffffeb0 {
				status = "okay";
			};
		};

		usb0: ohci@600000 {
			status = "okay";
			num-ports = <3>;
		};

		usb1: ehci@700000 {
			status = "okay";
		};
	};

	leds {
		compatible = "gpio-leds";

		/* little green LED in middle of Aria G25 module */
		aria_led {
			label = "aria_led";
			gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
			linux,default-trigger = "heartbeat";
		};

	};

	onewire {
		compatible = "w1-gpio";
		gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_w1_0>;
	};
};