arch/arm/boot/dts/bcm53016-meraki-mr32.dts

   1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
   2 /*
   3  * Broadcom BCM470X / BCM5301X ARM platform code.
   4  * DTS for Meraki MR32 / Codename: Espresso
   5  *
   6  * Copyright (C) 2018-2020 Christian Lamparter <chunkeey@gmail.com>
   7  */
   8
   9 /dts-v1/;
  10
  11 #include "bcm4708.dtsi"
  12 #include "bcm5301x-nand-cs0-bch8.dtsi"
  13 #include <dt-bindings/leds/common.h>
  14
  15 / {
  16         compatible = "meraki,mr32", "brcm,brcm53016", "brcm,bcm4708";
  17         model = "Meraki MR32";
  18
  19         chosen {
  20                 bootargs = " console=ttyS0,115200n8 earlycon";
  21         };
  22
  23         memory {
  24                 reg = <0x00000000 0x08000000>;
  25                 device_type = "memory";
  26         };
  27
  28         aliases {
  29                 serial1 = &uart2;
  30         };
  31
  32         leds {
  33                 compatible = "gpio-leds";
  34
  35                 sysled3 {
  36                         function = LED_FUNCTION_FAULT;
  37                         color = <LED_COLOR_ID_AMBER>;
  38                         gpios = <&chipcommon 18 GPIO_ACTIVE_LOW>;
  39                         panic-indicator;
  40                 };
  41                 sysled2 {
  42                         function = LED_FUNCTION_INDICATOR;
  43                         color = <LED_COLOR_ID_WHITE>;
  44                         gpios = <&chipcommon 19 GPIO_ACTIVE_HIGH>;
  45                 };
  46         };
  47
  48         keys {
  49                 compatible = "gpio-keys";
  50                 #address-cells = <1>;
  51                 #size-cells = <0>;
  52
  53                 restart {
  54                         label = "Reset";
  55                         linux,code = <KEY_RESTART>;
  56                         gpios = <&chipcommon 21 GPIO_ACTIVE_LOW>;
  57                 };
  58         };
  59
  60         pwm-leds {
  61                 compatible = "pwm-leds";
  62
  63                 red {
  64                         /* SYS-LED 1 - Tricolor */
  65                         function = LED_FUNCTION_INDICATOR;
  66                         color = <LED_COLOR_ID_RED>;
  67                         pwms = <&pwm 0 50000 0>;
  68                         max-brightness = <255>;
  69                 };
  70
  71                 green {
  72                         /* SYS-LED 1 - Tricolor */
  73                         function = LED_FUNCTION_POWER;
  74                         color = <LED_COLOR_ID_GREEN>;
  75                         pwms = <&pwm 1 50000 0>;
  76                         max-brightness = <255>;
  77                 };
  78
  79                 blue {
  80                         /* SYS-LED 1 - Tricolor */
  81                         function = LED_FUNCTION_INDICATOR;
  82                         color = <LED_COLOR_ID_BLUE>;
  83                         pwms = <&pwm 2 50000 0>;
  84                         max-brightness = <255>;
  85                 };
  86         };
  87
  88         i2c {
  89                 /*
  90                  * The platform provided I2C does not budge.
  91                  * This is a replacement until I can figure
  92                  * out what are the missing bits...
  93                  */
  94
  95                 compatible = "i2c-gpio";
  96                 sda-gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>;
  97                 scl-gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>;
  98                 i2c-gpio,delay-us = <10>; /* close to 100 kHz */
  99                 #address-cells = <1>;
 100                 #size-cells = <0>;
 101
 102                 current_sense: ina219@45 {
 103                         compatible = "ti,ina219";
 104                         reg = <0x45>;
 105                         shunt-resistor = <60000>; /* = 60 mOhms */
 106                 };
 107
 108                 eeprom: eeprom@50 {
 109                         compatible = "atmel,24c64";
 110                         reg = <0x50>;
 111                         pagesize = <32>;
 112                         read-only;
 113                 };
 114         };
 115 };
 116
 117 &uart0 {
 118         clock-frequency = <62500000>;
 119         /delete-property/ clocks;
 120 };
 121
 122 &uart1 {
 123         status = "disabled";
 124 };
 125
 126 &uart2 {
 127         status = "okay";
 128         /*
 129          * bluetooth-le {
 130          *      compatible = "brcm,bcm20732";
 131          *      enable-gpios = <&chipcommon 20 GPIO_ACTIVE_HIGH>;
 132          *};
 133          */
 134 };
 135
 136 &gmac1 {
 137         status = "disabled";
 138 };
 139 &gmac2 {
 140         status = "disabled";
 141 };
 142 &gmac3 {
 143         status = "disabled";
 144 };
 145
 146 &pwm {
 147         status = "okay";
 148         pinctrl-names = "default";
 149         pinctrl-0 = <&pinmux_pwm>;
 150 };
 151
 152 &nandcs {
 153         nand-ecc-algo = "hw";
 154
 155         partitions {
 156                 /*
 157                  * The partition autodetection does not work for this device.
 158                  * It will only detect the "nvram" partition with an incorrect size.
 159                  *      [    1.721667] 1 bcm47xxpart partitions found on MTD device brcmnand.0
 160                  *      [    1.727962] Creating 1 MTD partitions on "brcmnand.0":
 161                  *      [    1.733117] 0x000000400000-0x000008000000 : "nvram"
 162                  */
 163
 164                 compatible = "fixed-partitions";
 165                 #address-cells = <0x1>;
 166                 #size-cells = <0x1>;
 167
 168                 partition0@0 {
 169                         label = "u-boot";
 170                         reg = <0x0 0x100000>;
 171                         read-only;
 172                 };
 173
 174                 partition1@100000 {
 175                         label = "bootkernel1";
 176                         reg = <0x100000 0x300000>;
 177                         read-only;
 178                 };
 179
 180                 partition2@400000 {
 181                         label = "nvram";
 182                         reg = <0x400000 0x100000>;
 183                         read-only;
 184                 };
 185
 186                 partition3@500000 {
 187                         label = "bootkernel2";
 188                         reg = <0x500000 0x300000>;
 189                         read-only;
 190                 };
 191
 192                 partition4@800000 {
 193                         label = "ubi";
 194                         reg = <0x800000 0x7780000>;
 195                 };
 196         };
 197 };