1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Device Tree file for ITian Square One SQ201 NAS
4 */
5
6 /dts-v1/;
7
8 #include "gemini.dtsi"
9 #include <dt-bindings/input/input.h>
10
11 / {
12 model = "ITian Square One SQ201";
13 compatible = "itian,sq201", "cortina,gemini";
14 #address-cells = <1>;
15 #size-cells = <1>;
16
17 memory@0 { /* 128 MB */
18 device_type = "memory";
19 reg = <0x00000000 0x8000000>;
20 };
21
22 chosen {
23 bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
24 stdout-path = &uart0;
25 };
26
27 gpio_keys {
28 compatible = "gpio-keys";
29
30 button-setup {
31 debounce-interval = <100>;
32 wakeup-source;
33 linux,code = <KEY_RESTART>;
34 label = "factory reset";
35 /* Conflict with NAND flash */
36 gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
37 };
38 };
39
40 leds {
41 compatible = "gpio-leds";
42 led-green-info {
43 label = "sq201:green:info";
44 gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
45 default-state = "on";
46 linux,default-trigger = "heartbeat";
47 };
48 led-green-usb {
49 label = "sq201:green:usb";
50 gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
51 default-state = "off";
52 linux,default-trigger = "usb-host";
53 };
54 };
55
56 mdio0: mdio {
57 compatible = "virtual,mdio-gpio";
58 /* Uses MDC and MDIO */
59 gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>, /* MDC */
60 <&gpio0 21 GPIO_ACTIVE_HIGH>; /* MDIO */
61 #address-cells = <1>;
62 #size-cells = <0>;
63
64 /* This is a Marvell 88E1111 ethernet transciever */
65 phy0: ethernet-phy@1 {
66 reg = <1>;
67 };
68 };
69
70 spi {
71 compatible = "spi-gpio";
72 #address-cells = <1>;
73 #size-cells = <0>;
74 /* Check pin collisions */
75 sck-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
76 miso-gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
77 mosi-gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
78 cs-gpios = <&gpio1 31 GPIO_ACTIVE_HIGH>;
79 num-chipselects = <1>;
80
81 ethernet-switch@0 {
82 compatible = "vitesse,vsc7395";
83 reg = <0>;
84 /* Specified for 2.5 MHz or below */
85 spi-max-frequency = <2500000>;
86 gpio-controller;
87 #gpio-cells = <2>;
88
89 ethernet-ports {
90 #address-cells = <1>;
91 #size-cells = <0>;
92
93 ethernet-port@0 {
94 reg = <0>;
95 label = "lan1";
96 };
97 ethernet-port@1 {
98 reg = <1>;
99 label = "lan2";
100 };
101 ethernet-port@2 {
102 reg = <2>;
103 label = "lan3";
104 };
105 ethernet-port@3 {
106 reg = <3>;
107 label = "lan4";
108 };
109 vsc: ethernet-port@6 {
110 reg = <6>;
111 label = "cpu";
112 ethernet = <&gmac1>;
113 phy-mode = "rgmii";
114 fixed-link {
115 speed = <1000>;
116 full-duplex;
117 pause;
118 };
119 };
120 };
121 };
122 };
123
124
125 soc {
126 flash@30000000 {
127 status = "okay";
128 pinctrl-names = "enabled", "disabled";
129 pinctrl-0 = <&pflash_default_pins>;
130 pinctrl-1 = <&pflash_disabled_pins>;
131 /* 16MB of flash */
132 reg = <0x30000000 0x01000000>;
133
134 partitions {
135 compatible = "redboot-fis";
136 /* Eraseblock at 0xfe0000 */
137 fis-index-block = <0x1fc>;
138 };
139 };
140
141 syscon: syscon@40000000 {
142 pinctrl {
143 /*
144 * gpio0fgrp cover line 18 used by reset button
145 * gpio0ggrp cover line 20 used by info LED
146 * gpio0hgrp cover line 21, 22 used by MDIO for Marvell PHY
147 * gpio0kgrp cover line 31 used by USB LED
148 */
149 gpio0_default_pins: pinctrl-gpio0 {
150 mux {
151 function = "gpio0";
152 groups = "gpio0fgrp",
153 "gpio0hgrp";
154 };
155 };
156 /*
157 * gpio0dgrp cover lines used by the SPI
158 * to the Vitesse G5x chip.
159 */
160 gpio1_default_pins: pinctrl-gpio1 {
161 mux {
162 function = "gpio1";
163 groups = "gpio1dgrp";
164 };
165 };
166 /*
167 * These GPIO groups will be mapped in over some
168 * of the flash pins when the flash is not in
169 * active use.
170 */
171 pflash_disabled_pins: pinctrl-pflash-disabled {
172 mux {
173 function = "gpio0";
174 groups = "gpio0ggrp", "gpio0igrp", "gpio0jgrp",
175 "gpio0kgrp";
176 };
177 };
178 pinctrl-gmii {
179 mux {
180 function = "gmii";
181 groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
182 };
183 /* Settings come from memory dump in PLATO */
184 conf0 {
185 pins = "V8 GMAC0 RXDV";
186 skew-delay = <0>;
187 };
188 conf1 {
189 pins = "Y7 GMAC0 RXC";
190 skew-delay = <15>;
191 };
192 conf2 {
193 pins = "T8 GMAC0 TXEN";
194 skew-delay = <7>;
195 };
196 conf3 {
197 pins = "U8 GMAC0 TXC";
198 skew-delay = <10>;
199 };
200 conf4 {
201 pins = "T10 GMAC1 RXDV";
202 skew-delay = <7>;
203 };
204 conf5 {
205 pins = "Y11 GMAC1 RXC";
206 skew-delay = <8>;
207 };
208 conf6 {
209 pins = "W11 GMAC1 TXEN";
210 skew-delay = <7>;
211 };
212 conf7 {
213 pins = "V11 GMAC1 TXC";
214 skew-delay = <5>;
215 };
216 conf8 {
217 /* The data lines all have default skew */
218 pins = "W8 GMAC0 RXD0", "V9 GMAC0 RXD1",
219 "Y8 GMAC0 RXD2", "U9 GMAC0 RXD3",
220 "T7 GMAC0 TXD0", "U6 GMAC0 TXD1",
221 "V7 GMAC0 TXD2", "U7 GMAC0 TXD3",
222 "Y12 GMAC1 RXD0", "V12 GMAC1 RXD1",
223 "T11 GMAC1 RXD2", "W12 GMAC1 RXD3",
224 "U10 GMAC1 TXD0", "Y10 GMAC1 TXD1",
225 "W10 GMAC1 TXD2", "T9 GMAC1 TXD3";
226 skew-delay = <7>;
227 };
228 /* Set up drive strength on GMAC0 and GMAC1 to 16 mA */
229 conf9 {
230 groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
231 drive-strength = <16>;
232 };
233 };
234 };
235 };
236
237 sata: sata@46000000 {
238 cortina,gemini-ata-muxmode = <0>;
239 cortina,gemini-enable-sata-bridge;
240 status = "okay";
241 };
242
243 gpio0: gpio@4d000000 {
244 pinctrl-names = "default";
245 pinctrl-0 = <&gpio0_default_pins>;
246 };
247
248 gpio1: gpio@4e000000 {
249 pinctrl-names = "default";
250 pinctrl-0 = <&gpio1_default_pins>;
251 };
252
253 pci@50000000 {
254 status = "okay";
255 };
256
257 ethernet@60000000 {
258 status = "okay";
259
260 ethernet-port@0 {
261 phy-mode = "rgmii";
262 phy-handle = <&phy0>;
263 };
264 ethernet-port@1 {
265 phy-mode = "rgmii";
266 fixed-link {
267 speed = <1000>;
268 full-duplex;
269 pause;
270 };
271 };
272 };
273
274 ide@63000000 {
275 status = "okay";
276 };
277
278 usb@68000000 {
279 status = "okay";
280 };
281
282 usb@69000000 {
283 status = "okay";
284 };
285 };
286 };
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