arch/arm/boot/dts/armada-xp-db-xc3-24g4xg.dts

   1 /*
   2  * Device Tree file for DB-XC3-24G4XG 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-98dx3336.dtsi"
  58
  59 / {
  60         model = "DB-XC3-24G4XG";
  61         compatible = "marvell,db-xc3-24g4xg", "marvell,armadaxp-98dx3336", "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 0x40000000>; /* 1 GB */
  70         };
  71 };
  72
  73 &devbus_bootcs {
  74         status = "okay";
  75
  76         /* Device Bus parameters are required */
  77
  78         /* Read parameters */
  79         devbus,bus-width    = <16>;
  80         devbus,turn-off-ps  = <60000>;
  81         devbus,badr-skew-ps = <0>;
  82         devbus,acc-first-ps = <124000>;
  83         devbus,acc-next-ps  = <248000>;
  84         devbus,rd-setup-ps  = <0>;
  85         devbus,rd-hold-ps   = <0>;
  86
  87         /* Write parameters */
  88         devbus,sync-enable = <0>;
  89         devbus,wr-high-ps  = <60000>;
  90         devbus,wr-low-ps   = <60000>;
  91         devbus,ale-wr-ps   = <60000>;
  92 };
  93
  94 &uart0 {
  95         status = "okay";
  96 };
  97
  98 &uart1 {
  99         status = "okay";
 100 };
 101
 102 &i2c0 {
 103         clock-frequency = <100000>;
 104         status = "okay";
 105 };
 106
 107 &nand {
 108         status = "okay";
 109         num-cs = <1>;
 110         marvell,nand-keep-config;
 111         marvell,nand-enable-arbiter;
 112         nand-on-flash-bbt;
 113         nand-ecc-strength = <4>;
 114         nand-ecc-step-size = <512>;
 115 };
 116
 117 &spi0 {
 118         status = "okay";
 119
 120         spi-flash@0 {
 121                 #address-cells = <1>;
 122                 #size-cells = <1>;
 123                 compatible = "m25p64";
 124                 reg = <0>; /* Chip select 0 */
 125                 spi-max-frequency = <20000000>;
 126                 m25p,fast-read;
 127
 128                 partition@u-boot {
 129                         reg = <0x00000000 0x00100000>;
 130                         label = "u-boot";
 131                 };
 132                 partition@u-boot-env {
 133                         reg = <0x00100000 0x00040000>;
 134                         label = "u-boot-env";
 135                 };
 136                 partition@unused {
 137                         reg = <0x00140000 0x00ec0000>;
 138                         label = "unused";
 139                 };
 140
 141         };
 142 };