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0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003 * Device Tree file for ITian Square One SQ201 NAS
0004 */
0005
0006 /dts-v1/;
0007
0008 #include "gemini.dtsi"
0009 #include <dt-bindings/input/input.h>
0010
0011 / {
0012 model = "ITian Square One SQ201";
0013 compatible = "itian,sq201", "cortina,gemini";
0014 #address-cells = <1>;
0015 #size-cells = <1>;
0016
0017 memory@0 { /* 128 MB */
0018 device_type = "memory";
0019 reg = <0x00000000 0x8000000>;
0020 };
0021
0022 chosen {
0023 bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
0024 stdout-path = &uart0;
0025 };
0026
0027 gpio_keys {
0028 compatible = "gpio-keys";
0029
0030 button-setup {
0031 debounce-interval = <100>;
0032 wakeup-source;
0033 linux,code = <KEY_SETUP>;
0034 label = "factory reset";
0035 /* Conflict with NAND flash */
0036 gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
0037 };
0038 };
0039
0040 leds {
0041 compatible = "gpio-leds";
0042 led-green-info {
0043 label = "sq201:green:info";
0044 gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
0045 default-state = "on";
0046 linux,default-trigger = "heartbeat";
0047 };
0048 led-green-usb {
0049 label = "sq201:green:usb";
0050 gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
0051 default-state = "off";
0052 linux,default-trigger = "usb-host";
0053 };
0054 };
0055
0056 mdio0: mdio {
0057 compatible = "virtual,mdio-gpio";
0058 /* Uses MDC and MDIO */
0059 gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>, /* MDC */
0060 <&gpio0 21 GPIO_ACTIVE_HIGH>; /* MDIO */
0061 #address-cells = <1>;
0062 #size-cells = <0>;
0063
0064 /* This is a Marvell 88E1111 ethernet transciever */
0065 phy0: ethernet-phy@1 {
0066 reg = <1>;
0067 };
0068 };
0069
0070 spi {
0071 compatible = "spi-gpio";
0072 #address-cells = <1>;
0073 #size-cells = <0>;
0074 /* Check pin collisions */
0075 sck-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
0076 miso-gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
0077 mosi-gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
0078 cs-gpios = <&gpio1 31 GPIO_ACTIVE_HIGH>;
0079 num-chipselects = <1>;
0080
0081 switch@0 {
0082 compatible = "vitesse,vsc7395";
0083 reg = <0>;
0084 /* Specified for 2.5 MHz or below */
0085 spi-max-frequency = <2500000>;
0086 gpio-controller;
0087 #gpio-cells = <2>;
0088
0089 ports {
0090 #address-cells = <1>;
0091 #size-cells = <0>;
0092
0093 port@0 {
0094 reg = <0>;
0095 label = "lan1";
0096 };
0097 port@1 {
0098 reg = <1>;
0099 label = "lan2";
0100 };
0101 port@2 {
0102 reg = <2>;
0103 label = "lan3";
0104 };
0105 port@3 {
0106 reg = <3>;
0107 label = "lan4";
0108 };
0109 vsc: port@6 {
0110 reg = <6>;
0111 label = "cpu";
0112 ethernet = <&gmac1>;
0113 phy-mode = "rgmii";
0114 fixed-link {
0115 speed = <1000>;
0116 full-duplex;
0117 pause;
0118 };
0119 };
0120 };
0121 };
0122 };
0123
0124
0125 soc {
0126 flash@30000000 {
0127 status = "okay";
0128 pinctrl-names = "enabled", "disabled";
0129 pinctrl-0 = <&pflash_default_pins>;
0130 pinctrl-1 = <&pflash_disabled_pins>;
0131 /* 16MB of flash */
0132 reg = <0x30000000 0x01000000>;
0133
0134 partitions {
0135 compatible = "redboot-fis";
0136 /* Eraseblock at 0xfe0000 */
0137 fis-index-block = <0x1fc>;
0138 };
0139 };
0140
0141 syscon: syscon@40000000 {
0142 pinctrl {
0143 /*
0144 * gpio0fgrp cover line 18 used by reset button
0145 * gpio0ggrp cover line 20 used by info LED
0146 * gpio0hgrp cover line 21, 22 used by MDIO for Marvell PHY
0147 * gpio0kgrp cover line 31 used by USB LED
0148 */
0149 gpio0_default_pins: pinctrl-gpio0 {
0150 mux {
0151 function = "gpio0";
0152 groups = "gpio0fgrp",
0153 "gpio0hgrp";
0154 };
0155 };
0156 /*
0157 * gpio0dgrp cover lines used by the SPI
0158 * to the Vitesse G5x chip.
0159 */
0160 gpio1_default_pins: pinctrl-gpio1 {
0161 mux {
0162 function = "gpio1";
0163 groups = "gpio1dgrp";
0164 };
0165 };
0166 /*
0167 * These GPIO groups will be mapped in over some
0168 * of the flash pins when the flash is not in
0169 * active use.
0170 */
0171 pflash_disabled_pins: pinctrl-pflash-disabled {
0172 mux {
0173 function = "gpio0";
0174 groups = "gpio0ggrp", "gpio0igrp", "gpio0jgrp",
0175 "gpio0kgrp";
0176 };
0177 };
0178 pinctrl-gmii {
0179 mux {
0180 function = "gmii";
0181 groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
0182 };
0183 /* Settings come from memory dump in PLATO */
0184 conf0 {
0185 pins = "V8 GMAC0 RXDV";
0186 skew-delay = <0>;
0187 };
0188 conf1 {
0189 pins = "Y7 GMAC0 RXC";
0190 skew-delay = <15>;
0191 };
0192 conf2 {
0193 pins = "T8 GMAC0 TXEN";
0194 skew-delay = <7>;
0195 };
0196 conf3 {
0197 pins = "U8 GMAC0 TXC";
0198 skew-delay = <10>;
0199 };
0200 conf4 {
0201 pins = "T10 GMAC1 RXDV";
0202 skew-delay = <7>;
0203 };
0204 conf5 {
0205 pins = "Y11 GMAC1 RXC";
0206 skew-delay = <8>;
0207 };
0208 conf6 {
0209 pins = "W11 GMAC1 TXEN";
0210 skew-delay = <7>;
0211 };
0212 conf7 {
0213 pins = "V11 GMAC1 TXC";
0214 skew-delay = <5>;
0215 };
0216 conf8 {
0217 /* The data lines all have default skew */
0218 pins = "W8 GMAC0 RXD0", "V9 GMAC0 RXD1",
0219 "Y8 GMAC0 RXD2", "U9 GMAC0 RXD3",
0220 "T7 GMAC0 TXD0", "U6 GMAC0 TXD1",
0221 "V7 GMAC0 TXD2", "U7 GMAC0 TXD3",
0222 "Y12 GMAC1 RXD0", "V12 GMAC1 RXD1",
0223 "T11 GMAC1 RXD2", "W12 GMAC1 RXD3",
0224 "U10 GMAC1 TXD0", "Y10 GMAC1 TXD1",
0225 "W10 GMAC1 TXD2", "T9 GMAC1 TXD3";
0226 skew-delay = <7>;
0227 };
0228 /* Set up drive strength on GMAC0 and GMAC1 to 16 mA */
0229 conf9 {
0230 groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
0231 drive-strength = <16>;
0232 };
0233 };
0234 };
0235 };
0236
0237 sata: sata@46000000 {
0238 cortina,gemini-ata-muxmode = <0>;
0239 cortina,gemini-enable-sata-bridge;
0240 status = "okay";
0241 };
0242
0243 gpio0: gpio@4d000000 {
0244 pinctrl-names = "default";
0245 pinctrl-0 = <&gpio0_default_pins>;
0246 };
0247
0248 gpio1: gpio@4e000000 {
0249 pinctrl-names = "default";
0250 pinctrl-0 = <&gpio1_default_pins>;
0251 };
0252
0253 pci@50000000 {
0254 status = "okay";
0255 };
0256
0257 ethernet@60000000 {
0258 status = "okay";
0259
0260 ethernet-port@0 {
0261 phy-mode = "rgmii";
0262 phy-handle = <&phy0>;
0263 };
0264 ethernet-port@1 {
0265 phy-mode = "rgmii";
0266 fixed-link {
0267 speed = <1000>;
0268 full-duplex;
0269 pause;
0270 };
0271 };
0272 };
0273
0274 ide@63000000 {
0275 status = "okay";
0276 };
0277
0278 usb@68000000 {
0279 status = "okay";
0280 };
0281
0282 usb@69000000 {
0283 status = "okay";
0284 };
0285 };
0286 };
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