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| 1 | +/* |
| 2 | + * Device Tree file for Excito Bubba B3 |
| 3 | + * |
| 4 | + * Copyright (C) 2013, Andrew Lunn < [email protected]> |
| 5 | + * |
| 6 | + * This program is free software; you can redistribute it and/or |
| 7 | + * modify it under the terms of the GNU General Public License |
| 8 | + * as published by the Free Software Foundation; either version |
| 9 | + * 2 of the License, or (at your option) any later version. |
| 10 | + * |
| 11 | + * Note: This requires a new'ish version of u-boot, which disables the |
| 12 | + * L2 cache. If your B3 silently fails to boot, u-boot is probably too |
| 13 | + * old. Either upgrade, or consider the following email: |
| 14 | + * |
| 15 | + * http://lists.debian.org/debian-arm/2012/08/msg00128.html |
| 16 | + */ |
| 17 | + |
| 18 | +/dts-v1/; |
| 19 | + |
| 20 | +#include "kirkwood.dtsi" |
| 21 | +#include "kirkwood-6281.dtsi" |
| 22 | + |
| 23 | +/ { |
| 24 | + model = "Excito B3"; |
| 25 | + compatible = "excito,b3", "marvell,kirkwood-88f6281", "marvell,kirkwood"; |
| 26 | + memory { /* 512 MB */ |
| 27 | + device_type = "memory"; |
| 28 | + reg = <0x00000000 0x20000000>; |
| 29 | + }; |
| 30 | + |
| 31 | + chosen { |
| 32 | + bootargs = "console=ttyS0,115200n8 earlyprintk"; |
| 33 | + }; |
| 34 | + |
| 35 | + mbus { |
| 36 | + pcie-controller { |
| 37 | + status = "okay"; |
| 38 | + |
| 39 | + /* Wifi model has Atheros chipset on pcie port */ |
| 40 | + pcie@1,0 { |
| 41 | + status = "okay"; |
| 42 | + }; |
| 43 | + }; |
| 44 | + }; |
| 45 | + |
| 46 | + ocp@f1000000 { |
| 47 | + pinctrl: pinctrl@10000 { |
| 48 | + pmx_button_power: pmx-button-power { |
| 49 | + marvell,pins = "mpp39"; |
| 50 | + marvell,function = "gpio"; |
| 51 | + }; |
| 52 | + pmx_led_green: pmx-led-green { |
| 53 | + marvell,pins = "mpp38"; |
| 54 | + marvell,function = "gpio"; |
| 55 | + }; |
| 56 | + pmx_led_red: pmx-led-red { |
| 57 | + marvell,pins = "mpp41"; |
| 58 | + marvell,function = "gpio"; |
| 59 | + }; |
| 60 | + pmx_led_blue: pmx-led-blue { |
| 61 | + marvell,pins = "mpp42"; |
| 62 | + marvell,function = "gpio"; |
| 63 | + }; |
| 64 | + pmx_beeper: pmx-beeper { |
| 65 | + marvell,pins = "mpp40"; |
| 66 | + marvell,function = "gpio"; |
| 67 | + }; |
| 68 | + }; |
| 69 | + |
| 70 | + spi@10600 { |
| 71 | + status = "okay"; |
| 72 | + pinctrl-0 = <&pmx_spi>; |
| 73 | + pinctrl-names = "default"; |
| 74 | + |
| 75 | + m25p16@0 { |
| 76 | + #address-cells = <1>; |
| 77 | + #size-cells = <1>; |
| 78 | + compatible = "m25p16"; |
| 79 | + reg = <0>; |
| 80 | + spi-max-frequency = <40000000>; |
| 81 | + mode = <0>; |
| 82 | + |
| 83 | + partition@0 { |
| 84 | + reg = <0x0 0xc0000>; |
| 85 | + label = "u-boot"; |
| 86 | + }; |
| 87 | + |
| 88 | + partition@c0000 { |
| 89 | + reg = <0xc0000 0x20000>; |
| 90 | + label = "u-boot env"; |
| 91 | + }; |
| 92 | + |
| 93 | + partition@e0000 { |
| 94 | + reg = <0xe0000 0x120000>; |
| 95 | + label = "data"; |
| 96 | + }; |
| 97 | + }; |
| 98 | + }; |
| 99 | + |
| 100 | + i2c@11000 { |
| 101 | + status = "okay"; |
| 102 | + /* |
| 103 | + * There is something on the bus at address 0x64. |
| 104 | + * Not yet identified what it is, maybe the eeprom |
| 105 | + * for the Atheros WiFi chip? |
| 106 | + */ |
| 107 | + }; |
| 108 | + |
| 109 | + |
| 110 | + serial@12000 { |
| 111 | + /* Internal on test pins, 3.3v TTL |
| 112 | + * UART0_RX = Testpoint 65 |
| 113 | + * UART0_TX = Testpoint 66 |
| 114 | + * See the Excito Wiki for more details. |
| 115 | + */ |
| 116 | + pinctrl-0 = <&pmx_uart0>; |
| 117 | + pinctrl-names = "default"; |
| 118 | + status = "okay"; |
| 119 | + }; |
| 120 | + |
| 121 | + sata@80000 { |
| 122 | + /* One internal, the second as eSATA */ |
| 123 | + status = "okay"; |
| 124 | + nr-ports = <2>; |
| 125 | + }; |
| 126 | + }; |
| 127 | + |
| 128 | + gpio-leds { |
| 129 | + /* |
| 130 | + * There is one LED "port" on the front and the colours |
| 131 | + * mix together giving some interesting combinations. |
| 132 | + */ |
| 133 | + compatible = "gpio-leds"; |
| 134 | + pinctrl-0 = < &pmx_led_green &pmx_led_red |
| 135 | + &pmx_led_blue >; |
| 136 | + pinctrl-names = "default"; |
| 137 | + |
| 138 | + programming_led { |
| 139 | + label = "bubba3:green:programming"; |
| 140 | + gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>; |
| 141 | + default-state = "off"; |
| 142 | + }; |
| 143 | + |
| 144 | + error_led { |
| 145 | + label = "bubba3:red:error"; |
| 146 | + gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>; |
| 147 | + }; |
| 148 | + |
| 149 | + active_led { |
| 150 | + label = "bubba3:blue:active"; |
| 151 | + gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>; |
| 152 | + }; |
| 153 | + }; |
| 154 | + |
| 155 | + gpio-keys { |
| 156 | + compatible = "gpio-keys"; |
| 157 | + pinctrl-0 = <&pmx_button_power>; |
| 158 | + pinctrl-names = "default"; |
| 159 | + |
| 160 | + power-button { |
| 161 | + /* On the back */ |
| 162 | + label = "Power Button"; |
| 163 | + linux,code = <KEY_POWER>; |
| 164 | + gpios = <&gpio1 7 GPIO_ACTIVE_LOW>; |
| 165 | + }; |
| 166 | + }; |
| 167 | + |
| 168 | + beeper: beeper { |
| 169 | + /* 4KHz Piezoelectric buzzer */ |
| 170 | + compatible = "gpio-beeper"; |
| 171 | + pinctrl-0 = <&pmx_beeper>; |
| 172 | + pinctrl-names = "default"; |
| 173 | + gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>; |
| 174 | + }; |
| 175 | +}; |
| 176 | + |
| 177 | +&mdio { |
| 178 | + status = "okay"; |
| 179 | + |
| 180 | + ethphy0: ethernet-phy@8 { |
| 181 | + device_type = "ethernet-phy"; |
| 182 | + reg = <8>; |
| 183 | + }; |
| 184 | + |
| 185 | + ethphy1: ethernet-phy@24 { |
| 186 | + device_type = "ethernet-phy"; |
| 187 | + reg = <24>; |
| 188 | + }; |
| 189 | +}; |
| 190 | + |
| 191 | +ð0 { |
| 192 | + status = "okay"; |
| 193 | + ethernet0-port@0 { |
| 194 | + phy-handle = <ðphy0>; |
| 195 | + }; |
| 196 | +}; |
| 197 | + |
| 198 | +ð1 { |
| 199 | + status = "okay"; |
| 200 | + ethernet1-port@0 { |
| 201 | + phy-handle = <ðphy1>; |
| 202 | + }; |
| 203 | +}; |
| 204 | + |
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