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

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Device Tree file for DB-XC3-24G4XG board
   4  *
   5  * Copyright (C) 2016 Allied Telesis Labs
   6  *
   7  * Based on armada-xp-db.dts
   8  *
   9  * Note: this Device Tree assumes that the bootloader has remapped the
  10  * internal registers to 0xf1000000 (instead of the default
  11  * 0xd0000000). The 0xf1000000 is the default used by the recent,
  12  * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
  13  * boards were delivered with an older version of the bootloader that
  14  * left internal registers mapped at 0xd0000000. If you are in this
  15  * situation, you should either update your bootloader (preferred
  16  * solution) or the below Device Tree should be adjusted.
  17  */
  18
  19 /dts-v1/;
  20 #include "armada-xp-98dx3336.dtsi"
  21
  22 / {
  23         model = "DB-XC3-24G4XG";
  24         compatible = "marvell,db-xc3-24g4xg", "marvell,armadaxp-98dx3336", "marvell,armada-370-xp";
  25
  26         chosen {
  27                 bootargs = "console=ttyS0,115200 earlyprintk";
  28         };
  29
  30         memory {
  31                 device_type = "memory";
  32                 reg = <0 0x00000000 0 0x40000000>; /* 1 GB */
  33         };
  34 };
  35
  36 &devbus_bootcs {
  37         status = "okay";
  38
  39         /* Device Bus parameters are required */
  40
  41         /* Read parameters */
  42         devbus,bus-width    = <16>;
  43         devbus,turn-off-ps  = <60000>;
  44         devbus,badr-skew-ps = <0>;
  45         devbus,acc-first-ps = <124000>;
  46         devbus,acc-next-ps  = <248000>;
  47         devbus,rd-setup-ps  = <0>;
  48         devbus,rd-hold-ps   = <0>;
  49
  50         /* Write parameters */
  51         devbus,sync-enable = <0>;
  52         devbus,wr-high-ps  = <60000>;
  53         devbus,wr-low-ps   = <60000>;
  54         devbus,ale-wr-ps   = <60000>;
  55 };
  56
  57 &uart0 {
  58         status = "okay";
  59 };
  60
  61 &uart1 {
  62         status = "okay";
  63 };
  64
  65 &i2c0 {
  66         clock-frequency = <100000>;
  67         status = "okay";
  68 };
  69
  70 &nand {
  71         status = "okay";
  72         num-cs = <1>;
  73         marvell,nand-keep-config;
  74         marvell,nand-enable-arbiter;
  75         nand-on-flash-bbt;
  76         nand-ecc-strength = <4>;
  77         nand-ecc-step-size = <512>;
  78 };
  79
  80 &spi0 {
  81         status = "okay";
  82
  83         spi-flash@0 {
  84                 #address-cells = <1>;
  85                 #size-cells = <1>;
  86                 compatible = "m25p64";
  87                 reg = <0>; /* Chip select 0 */
  88                 spi-max-frequency = <20000000>;
  89                 m25p,fast-read;
  90
  91                 partition@u-boot {
  92                         reg = <0x00000000 0x00100000>;
  93                         label = "u-boot";
  94                 };
  95                 partition@u-boot-env {
  96                         reg = <0x00100000 0x00040000>;
  97                         label = "u-boot-env";
  98                 };
  99                 partition@unused {
 100                         reg = <0x00140000 0x00ec0000>;
 101                         label = "unused";
 102                 };
 103
 104         };
 105 };