1/*- 2 * Copyright (c) 2015 John Wehle <john@feith.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* 28 * The ordering of certain devices is significant (e.g. usb depends on 29 * usb-phy which depends on gpio, also the timer should appear early on 30 * to provide a reasonably accurate DELAY implementation). 31 */ 32 33/dts-v1/; 34 35/memreserve/ 0x84900000 0x00600000; /* 6MB frame buffer */ 36 37#include "meson3.dtsi" 38 39/ { 40 /* 41 * My development unit is a Yiyate Android TV Box containing 42 * a HD18 motherboard and an aml8726-m3 SoC ... later versions 43 * shipped with an aml8726-m6. Printenv in uboot shows m3-oplay 44 * as the boardname supplied as part of mmcargs. 45 */ 46 47 model = "yiyate,hd18-m3"; 48 compatible = "yiyate,hd18-m3", "amlogic,meson3"; 49 50 #address-cells = <1>; 51 #size-cells = <1>; 52 53 aliases { 54 soc = &soc; 55 screen = &screen; 56 uart0 = &uart_AO; 57 }; 58 59 memory { 60 device_type = "memory"; 61 reg = <0x80000000 0x40000000>; /* 1GB RAM */ 62 }; 63 64 soc: soc { 65 device_type = "soc"; 66 bus-frequency = <0>; 67 68 ccm@c1104140 { 69 compatible = "amlogic,aml8726-ccm"; 70 reg = <0xc1104140 20>; /* cbus 0x1050 */ 71 72 functions = "ethernet", "i2c", "rng", "sdio", 73 "uart-a", "uart-b", "uart-c", 74 "usb-a", "usb-b"; 75 }; 76 77 pinctrl: pinctrl@c11080b0 { 78 compatible = "amlogic,aml8726-pinctrl"; 79 reg = <0xc11080b0 40>, /* mux */ 80 <0xc11080e8 24>, /* pu/pd */ 81 <0xc11080e8 24>, /* pull enable */ 82 <0xc8100014 4>, /* ao mux */ 83 <0xc810002c 4>, /* ao pu/pd */ 84 <0xc810002c 4>; /* ao pull enable */ 85 86 /* 87 * Currently only pin muxing that deviates 88 * from the power on default of gpio is 89 * specified here. 90 */ 91 92 pinctrl-names = "default"; 93 pinctrl-0 = <&pins_uartao &pins_ethernet &pins_hdmi>; 94 95 pins_ethernet: ethernet { 96 amlogic,pins = "clk_out", "tx_en", 97 "tx_d0", "tx_d1", 98 "crs_dv", "rx_err", 99 "rx_d0", "rx_d1", 100 "mdc", "mdio"; 101 amlogic,function = "ethernet"; 102 }; 103 104 pins_hdmi: hdmi { 105 amlogic,pins = "cec", "hpd", 106 "scl", "sda"; 107 amlogic,function = "hdmi"; 108 }; 109 110 pins_sdio_b: sdio_b { 111 amlogic,pins = "clk", "cmd", 112 "d0", "d1", 113 "d2", "d3"; 114 amlogic,function = "sdio-b"; 115 }; 116 117 pins_uartao: uartao { 118 amlogic,pins = "tx", "rx"; 119 amlogic,function = "uart-ao"; 120 }; 121 }; 122 123 rtc@c8100740 { 124 compatible = "amlogic,aml8726-rtc"; 125 reg = <0xc8100740 20>; /* aobus 0x1d0 */ 126 interrupts = <0 72 1>; /* AM_IRQ2(8) */ 127 }; 128 129 clkmsr: clkmsr@c1108758 { 130 compatible = "amlogic,aml8726-clkmsr"; 131 reg = <0xc1108758 16>; /* cbus 0x21d6 */ 132 133 clocks = <&clk81>; 134 }; 135 136 gpio5: gpio@c110806c { 137 compatible = "amlogic,aml8726-gpio"; 138 reg = <0xc110806c 4>, /* oen cbus 0x201b */ 139 <0xc1108070 4>, /* out */ 140 <0xc1108074 4>; /* in */ 141 142 gpio-controller; 143 #gpio-cells = <1>; 144 pin-count = <32>; 145 }; 146 147 mmc@c1108c20 { 148 compatible = "amlogic,aml8726-mmc"; 149 reg = <0xc1108c20 32>; /* cbus 0x2308 */ 150 interrupts = <0 28 1>; /* AM_IRQ0(28) */ 151 152 clocks = <&clk81>; 153 154 pinctrl-names = "default"; 155 pinctrl-0 = <&pins_sdio_b>; 156 157 mmc-voltages = "3.3"; 158 159 mmc-pwr-en = <&gpio5 31 0>; /* card_8 */ 160 ins-detect = <&gpio5 29 0>; /* card_6 */ 161 }; 162 163 rng@c1108100 { 164 compatible = "amlogic,aml8726-rng"; 165 reg = <0xc1108100 8>; /* cbus 0x2040 */ 166 }; 167 168 usb-phy@c1108400 { 169 /* usb-a and usb-b phy */ 170 compatible = "amlogic,aml8726-m3-usb-phy"; 171 reg = <0xc1108400 32>; /* cbus 0x2100 */ 172 }; 173 174 usb@c9040000 { 175 /* usb-a */ 176 compatible = "synopsys,designware-hs-otg2"; 177 reg = <0xc9040000 0x40000>; /* ahbbus 0x40000*/ 178 interrupts = <0 30 4>; /* AM_IRQ0(30) */ 179 #address-cells = <1>; 180 #size-cells = <0>; 181 }; 182 183 usb@c90c0000 { 184 /* usb-b */ 185 compatible = "synopsys,designware-hs-otg2"; 186 reg = <0xc90c0000 0x40000>; /* ahbbus 0xc0000 */ 187 interrupts = <0 31 4>; /* AM_IRQ0(31) */ 188 #address-cells = <1>; 189 #size-cells = <0>; 190 191 dr_mode = "host"; 192 }; 193 194 eth@c9410000 { 195 /* ethernet */ 196 compatible = "snps,dwmac"; 197 reg = <0xc9410000 0x2000>; /* ahbbus 0x410000 */ 198 interrupts = <0 8 1>; /* AM_IRQ0(8) */ 199 #address-cells = <1>; 200 #size-cells = <0>; 201 }; 202 203 screen: fb@c8001324 { 204 device_type = "display"; 205 compatible = "amlogic,aml8726-fb"; 206 reg = <0xc8001324 12>, /* CANVAS */ 207 <0xc1106800 1024>, /* VIU */ 208 <0xc1107400 1024>; /* VPP */ 209 interrupts = <0 2 1>, /* AM_IRQ0(2) */ 210 <0 3 1>, /* AM_IRQ0(3) */ 211 <0 12 1>, /* AM_IRQ0(12) */ 212 <0 13 1>; /* AM_IRQ0(13) */ 213 214 address = <0x84900000>; /* match memreserve */ 215 width = <720>; 216 height = <480>; 217 depth = <24>; 218 linebytes = <2160>; 219 }; 220 }; 221 222 chosen { 223 stdin = "uart0"; 224 stdout = "uart0"; 225 }; 226}; 227 228&clk81 { 229 clock-frequency = <0>; 230}; 231 232&uart_AO { 233 status = "okay"; 234 current-speed = <115200>; 235}; 236