arch/arm/boot/dts/am335x-cm-t335.dts

   1 /*
   2  * am335x-cm-t335.dts - Device Tree file for Compulab CM-T335
   3  *
   4  * Copyright (C) 2014 - 2015 CompuLab Ltd. - http://www.compulab.co.il/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 /dts-v1/;
  12
  13 #include "am33xx.dtsi"
  14
  15 / {
  16         model = "CompuLab CM-T335";
  17         compatible = "compulab,cm-t335", "ti,am33xx";
  18
  19         memory {
  20                 device_type = "memory";
  21                 reg = <0x80000000 0x8000000>;   /* 128 MB */
  22         };
  23
  24         leds {
  25                 compatible = "gpio-leds";
  26                 pinctrl-names = "default";
  27                 pinctrl-0 = <&gpio_led_pins>;
  28                 led@0 {
  29                         label = "cm_t335:green";
  30                         gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;     /* gpio2_0 */
  31                         linux,default-trigger = "heartbeat";
  32                 };
  33         };
  34 };
  35
  36 &am33xx_pinmux {
  37         pinctrl-names = "default";
  38         pinctrl-0 = <>;
  39
  40         i2c0_pins: pinmux_i2c0_pins {
  41                 pinctrl-single,pins = <
  42                         /* i2c0_sda.i2c0_sda */
  43                         AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0)
  44                         /* i2c0_scl.i2c0_scl */
  45                         AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0)
  46                 >;
  47         };
  48
  49         i2c1_pins: pinmux_i2c1_pins {
  50                 pinctrl-single,pins = <
  51                         /* uart0_ctsn.i2c1_sda */
  52                         AM33XX_IOPAD(0x968, PIN_INPUT_PULLUP | MUX_MODE2)
  53                         /* uart0_rtsn.i2c1_scl */
  54                         AM33XX_IOPAD(0x96c, PIN_INPUT_PULLUP | MUX_MODE2)
  55                 >;
  56         };
  57
  58         gpio_led_pins: pinmux_gpio_led_pins {
  59                 pinctrl-single,pins = <
  60                         /* gpmc_csn3.gpio2_0 */
  61                         AM33XX_IOPAD(0x888, PIN_OUTPUT | MUX_MODE7)
  62                 >;
  63         };
  64
  65         nandflash_pins: pinmux_nandflash_pins {
  66                 pinctrl-single,pins = <
  67                         /* gpmc_ad0.gpmc_ad0 */
  68                         AM33XX_IOPAD(0x800, PIN_INPUT_PULLUP | MUX_MODE0)
  69                         /* gpmc_ad1.gpmc_ad1 */
  70                         AM33XX_IOPAD(0x804, PIN_INPUT_PULLUP | MUX_MODE0)
  71                         /* gpmc_ad2.gpmc_ad2 */
  72                         AM33XX_IOPAD(0x808, PIN_INPUT_PULLUP | MUX_MODE0)
  73                         /* gpmc_ad3.gpmc_ad3 */
  74                         AM33XX_IOPAD(0x80c, PIN_INPUT_PULLUP | MUX_MODE0)
  75                         /* gpmc_ad4.gpmc_ad4 */
  76                         AM33XX_IOPAD(0x810, PIN_INPUT_PULLUP | MUX_MODE0)
  77                         /* gpmc_ad5.gpmc_ad5 */
  78                         AM33XX_IOPAD(0x814, PIN_INPUT_PULLUP | MUX_MODE0)
  79                         /* gpmc_ad6.gpmc_ad6 */
  80                         AM33XX_IOPAD(0x818, PIN_INPUT_PULLUP | MUX_MODE0)
  81                         /* gpmc_ad7.gpmc_ad7 */
  82                         AM33XX_IOPAD(0x81c, PIN_INPUT_PULLUP | MUX_MODE0)
  83                         /* gpmc_wait0.gpmc_wait0 */
  84                         AM33XX_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE0)
  85                         /* gpmc_wpn.gpio0_30 */
  86                         AM33XX_IOPAD(0x874, PIN_INPUT_PULLUP | MUX_MODE7)
  87                         /* gpmc_csn0.gpmc_csn0  */
  88                         AM33XX_IOPAD(0x87c, PIN_OUTPUT | MUX_MODE0)
  89                         /* gpmc_advn_ale.gpmc_advn_ale */
  90                         AM33XX_IOPAD(0x890, PIN_OUTPUT | MUX_MODE0)
  91                         /* gpmc_oen_ren.gpmc_oen_ren */
  92                         AM33XX_IOPAD(0x894, PIN_OUTPUT | MUX_MODE0)
  93                         /* gpmc_wen.gpmc_wen */
  94                         AM33XX_IOPAD(0x898, PIN_OUTPUT | MUX_MODE0)
  95                         /* gpmc_ben0_cle.gpmc_ben0_cle */
  96                         AM33XX_IOPAD(0x89c, PIN_OUTPUT | MUX_MODE0)
  97                 >;
  98         };
  99
 100         uart0_pins: pinmux_uart0_pins {
 101                 pinctrl-single,pins = <
 102                         /* uart0_rxd.uart0_rxd */
 103                         AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)
 104                         /* uart0_txd.uart0_txd */
 105                         AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
 106                 >;
 107         };
 108 };
 109
 110 &uart0 {
 111         pinctrl-names = "default";
 112         pinctrl-0 = <&uart0_pins>;
 113
 114         status = "okay";
 115 };
 116
 117 &i2c0 {
 118         pinctrl-names = "default";
 119         pinctrl-0 = <&i2c0_pins>;
 120
 121         status = "okay";
 122         clock-frequency = <400000>;
 123         /* CM-T335 board EEPROM */
 124         eeprom: 24c02@50 {
 125                 compatible = "atmel,24c02";
 126                 reg = <0x50>;
 127                 pagesize = <16>;
 128         };
 129         /* Real Time Clock */
 130         ext_rtc: em3027@56 {
 131                 compatible = "emmicro,em3027";
 132                 reg = <0x56>;
 133         };
 134 };
 135
 136 &gpmc {
 137         status = "okay";
 138         pinctrl-names = "default";
 139         pinctrl-0 = <&nandflash_pins>;
 140         ranges = <0 0 0x08000000 0x10000000>;   /* CS0: NAND */
 141         nand@0,0 {
 142                 reg = <0 0 0>; /* CS0, offset 0 */
 143                 ti,nand-ecc-opt = "bch8";
 144                 ti,elm-id = <&elm>;
 145                 nand-bus-width = <8>;
 146                 gpmc,device-width = <1>;
 147                 gpmc,sync-clk-ps = <0>;
 148                 gpmc,cs-on-ns = <0>;
 149                 gpmc,cs-rd-off-ns = <44>;
 150                 gpmc,cs-wr-off-ns = <44>;
 151                 gpmc,adv-on-ns = <6>;
 152                 gpmc,adv-rd-off-ns = <34>;
 153                 gpmc,adv-wr-off-ns = <44>;
 154                 gpmc,we-on-ns = <0>;
 155                 gpmc,we-off-ns = <40>;
 156                 gpmc,oe-on-ns = <0>;
 157                 gpmc,oe-off-ns = <54>;
 158                 gpmc,access-ns = <64>;
 159                 gpmc,rd-cycle-ns = <82>;
 160                 gpmc,wr-cycle-ns = <82>;
 161                 gpmc,wait-on-read = "true";
 162                 gpmc,wait-on-write = "true";
 163                 gpmc,bus-turnaround-ns = <0>;
 164                 gpmc,cycle2cycle-delay-ns = <0>;
 165                 gpmc,clk-activation-ns = <0>;
 166                 gpmc,wait-monitoring-ns = <0>;
 167                 gpmc,wr-access-ns = <40>;
 168                 gpmc,wr-data-mux-bus-ns = <0>;
 169                 /* MTD partition table */
 170                 #address-cells = <1>;
 171                 #size-cells = <1>;
 172                 partition@0 {
 173                         label = "spl";
 174                         reg = <0x00000000 0x00200000>;
 175                 };
 176                 partition@1 {
 177                         label = "uboot";
 178                         reg = <0x00200000 0x00100000>;
 179                 };
 180                 partition@2 {
 181                         label = "uboot environment";
 182                         reg = <0x00300000 0x00100000>;
 183                 };
 184                 partition@3 {
 185                         label = "dtb";
 186                         reg = <0x00400000 0x00100000>;
 187                 };
 188                 partition@4 {
 189                         label = "splash";
 190                         reg = <0x00500000 0x00400000>;
 191                 };
 192                 partition@5 {
 193                         label = "linux";
 194                         reg = <0x00900000 0x00600000>;
 195                 };
 196                 partition@6 {
 197                         label = "rootfs";
 198                         reg = <0x00F00000 0>;
 199                 };
 200         };
 201 };
 202
 203 &elm {
 204         status = "okay";
 205 };