arch/arm/dts/da850-lego-ev3.dts

   1 /*
   2  * Device tree for LEGO MINDSTORMS EV3
   3  *
   4  * Copyright (C) 2017 David Lechner <david@lechnology.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  *
   8  * This is an absolute minimum device tree instead of using the one from Linux
   9  * because the bootloader on the EV3 is limited to 256k. This saves us >10k.
  10  */
  11
  12 /dts-v1/;
  13
  14 / {
  15         #address-cells = <1>;
  16         #size-cells = <1>;
  17         compatible = "lego,ev3", "ti,da850";
  18         model = "LEGO MINDSTORMS EV3";
  19
  20         aliases {
  21                 serial1 = &serial1;
  22                 spi0 = &spi0;
  23         };
  24
  25         chosen {
  26                 stdout-path = &serial1;
  27         };
  28
  29         memory {
  30                 device_type = "memory";
  31                 reg = <0xc0000000 0x04000000>;
  32         };
  33
  34         arm {
  35                 #address-cells = <1>;
  36                 #size-cells = <1>;
  37                 ranges;
  38                 intc: interrupt-controller@fffee000 {
  39                         compatible = "ti,cp-intc";
  40                         interrupt-controller;
  41                         #interrupt-cells = <1>;
  42                         ti,intc-size = <101>;
  43                         reg = <0xfffee000 0x2000>;
  44                 };
  45         };
  46
  47         soc@1c00000 {
  48                 compatible = "simple-bus";
  49                 model = "da850";
  50                 #address-cells = <1>;
  51                 #size-cells = <1>;
  52                 ranges = <0x0 0x01c00000 0x400000>;
  53                 interrupt-parent = <&intc>;
  54
  55                 mmc0: mmc@40000 {
  56                         compatible = "ti,da830-mmc";
  57                         reg = <0x40000 0x1000>;
  58                         cap-sd-highspeed;
  59                         cap-mmc-highspeed;
  60                         interrupts = <16>;
  61                         max-frequency = <50000000>;
  62                         bus-width = <4>;
  63                 };
  64
  65                 spi0: spi@41000 {
  66                         #address-cells = <1>;
  67                         #size-cells = <0>;
  68                         compatible = "ti,da830-spi";
  69                         reg = <0x41000 0x1000>;
  70                         num-cs = <6>;
  71                         ti,davinci-spi-intr-line = <1>;
  72                         interrupts = <20>;
  73
  74                         flash@0 {
  75                                 compatible = "micron,n25q128a13", "jedec,spi-nor", "spi-flash";
  76                                 reg = <0>;
  77                                 spi-max-frequency = <50000000>;
  78                         };
  79                 };
  80
  81                 serial1: serial@10c000 {
  82                         compatible = "ti,da830-uart", "ns16550a";
  83                         reg = <0x10c000 0x100>;
  84                         reg-io-width = <4>;
  85                         reg-shift = <2>;
  86                         interrupts = <53>;
  87                 };
  88         };
  89 };