1/* 2 * Device Tree file for DB-DXBC2 board 3 * 4 * Copyright (C) 2016 Allied Telesis Labs 5 * 6 * Based on armada-xp-db.dts 7 * 8 * This file is dual-licensed: you can use it either under the terms 9 * of the GPL or the X11 license, at your option. Note that this dual 10 * licensing only applies to this file, and not this project as a 11 * whole. 12 * 13 * a) This file is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation; either version 2 of the 16 * License, or (at your option) any later version. 17 * 18 * This file is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * Or, alternatively, 24 * 25 * b) Permission is hereby granted, free of charge, to any person 26 * obtaining a copy of this software and associated documentation 27 * files (the "Software"), to deal in the Software without 28 * restriction, including without limitation the rights to use, 29 * copy, modify, merge, publish, distribute, sublicense, and/or 30 * sell copies of the Software, and to permit persons to whom the 31 * Software is furnished to do so, subject to the following 32 * conditions: 33 * 34 * The above copyright notice and this permission notice shall be 35 * included in all copies or substantial portions of the Software. 36 * 37 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 38 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 39 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 40 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 41 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 42 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 43 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 44 * OTHER DEALINGS IN THE SOFTWARE. 45 * 46 * Note: this Device Tree assumes that the bootloader has remapped the 47 * internal registers to 0xf1000000 (instead of the default 48 * 0xd0000000). The 0xf1000000 is the default used by the recent, 49 * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier 50 * boards were delivered with an older version of the bootloader that 51 * left internal registers mapped at 0xd0000000. If you are in this 52 * situation, you should either update your bootloader (preferred 53 * solution) or the below Device Tree should be adjusted. 54 */ 55 56/dts-v1/; 57#include "armada-xp-98dx4251.dtsi" 58 59/ { 60 model = "Marvell Bobcat2 Evaluation Board"; 61 compatible = "marvell,db-dxbc2", "marvell,armadaxp-98dx4251", "marvell,armada-370-xp"; 62 63 chosen { 64 bootargs = "console=ttyS0,115200 earlyprintk"; 65 }; 66 67 memory { 68 device_type = "memory"; 69 reg = <0 0x00000000 0 0x20000000>; /* 512 MB */ 70 }; 71 72}; 73 74&devbus_bootcs { 75 status = "okay"; 76 77 /* Device Bus parameters are required */ 78 79 /* Read parameters */ 80 devbus,bus-width = <16>; 81 devbus,turn-off-ps = <60000>; 82 devbus,badr-skew-ps = <0>; 83 devbus,acc-first-ps = <124000>; 84 devbus,acc-next-ps = <248000>; 85 devbus,rd-setup-ps = <0>; 86 devbus,rd-hold-ps = <0>; 87 88 /* Write parameters */ 89 devbus,sync-enable = <0>; 90 devbus,wr-high-ps = <60000>; 91 devbus,wr-low-ps = <60000>; 92 devbus,ale-wr-ps = <60000>; 93}; 94 95&i2c0 { 96 clock-frequency = <100000>; 97 status = "okay"; 98}; 99 100&uart0 { 101 status = "okay"; 102}; 103 104&uart1 { 105 status = "okay"; 106}; 107 108&nand { 109 status = "okay"; 110 num-cs = <1>; 111 marvell,nand-keep-config; 112 marvell,nand-enable-arbiter; 113 nand-on-flash-bbt; 114 nand-ecc-strength = <4>; 115 nand-ecc-step-size = <512>; 116}; 117 118&sdio { 119 pinctrl-0 = <&sdio_pins>; 120 pinctrl-names = "default"; 121 status = "okay"; 122 /* No CD or WP GPIOs */ 123 broken-cd; 124}; 125 126&spi0 { 127 status = "okay"; 128 129 spi-flash@0 { 130 #address-cells = <1>; 131 #size-cells = <1>; 132 compatible = "m25p64"; 133 reg = <0>; /* Chip select 0 */ 134 spi-max-frequency = <20000000>; 135 m25p,fast-read; 136 137 partition@u-boot { 138 reg = <0x00000000 0x00100000>; 139 label = "u-boot"; 140 }; 141 partition@u-boot-env { 142 reg = <0x00100000 0x00040000>; 143 label = "u-boot-env"; 144 }; 145 partition@unused { 146 reg = <0x00140000 0x00ec0000>; 147 label = "unused"; 148 }; 149 150 }; 151}; 152