1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
4 *
5 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
6 * Robert Nelson <robertcnelson@gmail.com>
7 */
8 /dts-v1/;
9 #include "at91sam9g25.dtsi"
10
11 / {
12 model = "Acme Systems Aria G25";
13 compatible = "acme,ariag25", "atmel,at91sam9x5ek",
14 "atmel,at91sam9x5", "atmel,at91sam9";
15
16 aliases {
17 serial5 = &uart0;
18 serial6 = &uart1;
19 };
20
21 chosen {
22 bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
23 };
24
25 memory@20000000 {
26 /* 128 MB, change this for 256 MB revision */
27 reg = <0x20000000 0x8000000>;
28 };
29
30 clocks {
31 slow_xtal {
32 clock-frequency = <32768>;
33 };
34
35 main_xtal {
36 clock-frequency = <12000000>;
37 };
38 };
39
40 leds {
41 compatible = "gpio-leds";
42
43 /* little green LED in middle of Aria G25 module */
44 aria_led {
45 label = "aria_led";
46 gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
47 linux,default-trigger = "heartbeat";
48 };
49
50 };
51
52 onewire {
53 compatible = "w1-gpio";
54 gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
55 pinctrl-names = "default";
56 pinctrl-0 = <&pinctrl_w1_0>;
57 };
58 };
59
60 &adc0 {
61 status = "okay";
62 atmel,adc-channels-used = <0xf>;
63 };
64
65 &dbgu {
66 status = "okay";
67 };
68
69 &i2c0 {
70 status = "okay";
71 };
72
73 &i2c1 {
74 status = "okay";
75 };
76
77 /* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
78
79 &macb0 {
80 phy-mode = "rmii";
81 /*
82 * following can be overwritten by bootloader:
83 * for example u-boot 'ftd set' command
84 */
85 local-mac-address = [00 00 00 00 00 00];
86 status = "okay";
87 };
88
89
90 &mmc0 {
91 /* N.B. Aria has no SD card detect (CD), assumed present */
92
93 pinctrl-0 = <
94 &pinctrl_mmc0_slot0_clk_cmd_dat0
95 &pinctrl_mmc0_slot0_dat1_3>;
96 pinctrl-names = "default";
97 status = "okay";
98
99 slot@0 {
100 reg = <0>;
101 bus-width = <4>;
102 };
103 };
104
105 &pinctrl {
106 w1_0 {
107 pinctrl_w1_0: w1_0-0 {
108 atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
109 };
110 };
111 };
112
113 &rtc {
114 status = "okay";
115 };
116
117 &tcb0 {
118 timer@0 {
119 compatible = "atmel,tcb-timer";
120 reg = <0>;
121 };
122
123 timer@1 {
124 compatible = "atmel,tcb-timer";
125 reg = <1>;
126 };
127 };
128
129 /*
130 * UART0/1 pins are marked as GPIO on
131 * Aria documentation.
132 * Change to "okay" if you need additional serial ports
133 */
134 &uart0 {
135 status = "disabled";
136 };
137
138 &uart1 {
139 status = "disabled";
140 };
141
142 &usart0 {
143 pinctrl-0 = <&pinctrl_usart0
144 &pinctrl_usart0_rts
145 &pinctrl_usart0_cts>;
146 status = "okay";
147 };
148
149 &usart1 {
150 pinctrl-0 = <&pinctrl_usart1
151 /* &pinctrl_usart1_rts */
152 /* &pinctrl_usart1_cts */
153 >;
154 status = "okay";
155 };
156
157 &usart2 {
158 /* cannot activate RTS2+CTS2, clash with
159 * ethernet on PB0 and PB1 */
160 pinctrl-0 = <&pinctrl_usart2>;
161 status = "okay";
162 };
163
164 &usart3 {
165 compatible = "atmel,at91sam9260-usart";
166 reg = <0xf8028000 0x200>;
167 interrupts = <8 4 5>;
168 pinctrl-names = "default";
169 pinctrl-0 = <&pinctrl_usart3
170 /* &pinctrl_usart3_rts */
171 /* &pinctrl_usart3_cts */
172 >;
173 status = "okay";
174 };
175
176 &usb0 {
177 status = "okay";
178 num-ports = <3>;
179 };
180
181 &usb1 {
182 status = "okay";
183 };
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