arch/arm/boot/dts/am335x-chilisom.dtsi

   1 /*
   2  * Copyright (C) 2015 Jablotron s.r.o. -- http://www.jablotron.com/
   3  * Author: Rostislav Lisovy <lisovy@jablotron.cz>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9 #include "am33xx.dtsi"
  10
  11 / {
  12         model = "Grinn AM335x ChiliSOM";
  13         compatible = "grinn,am335x-chilisom", "ti,am33xx";
  14
  15         cpus {
  16                 cpu@0 {
  17                         cpu0-supply = <&dcdc2_reg>;
  18                 };
  19         };
  20
  21         memory {
  22                 device_type = "memory";
  23                 reg = <0x80000000 0x20000000>; /* 512 MB */
  24         };
  25 };
  26
  27 &am33xx_pinmux {
  28         pinctrl-names = "default";
  29
  30         i2c0_pins: pinmux_i2c0_pins {
  31                 pinctrl-single,pins = <
  32                         AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0)       /* i2c0_sda.i2c0_sda */
  33                         AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0)       /* i2c0_scl.i2c0_scl */
  34                 >;
  35         };
  36
  37         uart0_pins: pinmux_uart0_pins {
  38                 pinctrl-single,pins = <
  39                         AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)       /* uart0_rxd.uart0_rxd */
  40                         AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)    /* uart0_txd.uart0_txd */
  41                 >;
  42         };
  43
  44         cpsw_default: cpsw_default {
  45                 pinctrl-single,pins = <
  46                         /* Slave 1 */
  47                         AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1)  /* mii1_crs.rmii1_crs */
  48                         AM33XX_IOPAD(0x910, PIN_INPUT_PULLUP | MUX_MODE1)       /* mii1_rxerr.rmii1_rxerr */
  49                         AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1)    /* mii1_txen.rmii1_txen */
  50                         AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1)    /* mii1_txd1.rmii1_txd1 */
  51                         AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE1)    /* mii1_txd0.rmii1_txd0 */
  52                         AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1)       /* mii1_rxd1.rmii1_rxd1 */
  53                         AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1)       /* mii1_rxd0.rmii1_rxd0 */
  54                         AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* rmii1_ref_clk.rmii_ref_clk */
  55                 >;
  56         };
  57
  58         cpsw_sleep: cpsw_sleep {
  59                 pinctrl-single,pins = <
  60                         /* Slave 1 reset value */
  61                         AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  62                         AM33XX_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7)
  63                         AM33XX_IOPAD(0x914, PIN_INPUT_PULLDOWN | MUX_MODE7)
  64                         AM33XX_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE7)
  65                         AM33XX_IOPAD(0x924, PIN_INPUT_PULLDOWN | MUX_MODE7)
  66                         AM33XX_IOPAD(0x928, PIN_INPUT_PULLDOWN | MUX_MODE7)
  67                         AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  68                         AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE7)
  69                         AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)
  70                 >;
  71         };
  72
  73         davinci_mdio_default: davinci_mdio_default {
  74                 pinctrl-single,pins = <
  75                         /* mdio_data.mdio_data */
  76                         AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)
  77                         /* mdio_clk.mdio_clk */
  78                         AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)
  79                 >;
  80         };
  81
  82         davinci_mdio_sleep: davinci_mdio_sleep {
  83                 pinctrl-single,pins = <
  84                         /* MDIO reset value */
  85                         AM33XX_IOPAD(0x948, PIN_INPUT_PULLDOWN | MUX_MODE7)
  86                         AM33XX_IOPAD(0x94c, PIN_INPUT_PULLDOWN | MUX_MODE7)
  87                 >;
  88         };
  89
  90         nandflash_pins: nandflash_pins {
  91                 pinctrl-single,pins = <
  92                         AM33XX_IOPAD(0x800, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad0.gpmc_ad0 */
  93                         AM33XX_IOPAD(0x804, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad1.gpmc_ad1 */
  94                         AM33XX_IOPAD(0x808, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad2.gpmc_ad2 */
  95                         AM33XX_IOPAD(0x80c, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad3.gpmc_ad3 */
  96                         AM33XX_IOPAD(0x810, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad4.gpmc_ad4 */
  97                         AM33XX_IOPAD(0x814, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad5.gpmc_ad5 */
  98                         AM33XX_IOPAD(0x818, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad6.gpmc_ad6 */
  99                         AM33XX_IOPAD(0x81c, PIN_INPUT_PULLDOWN | MUX_MODE0)     /* gpmc_ad7.gpmc_ad7 */
 100
 101                         AM33XX_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE0)       /* gpmc_wait0.gpmc_wait0 */
 102                         AM33XX_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE0)      /* gpmc_csn0.gpmc_csn0 */
 103                         AM33XX_IOPAD(0x890, PIN_OUTPUT_PULLUP | MUX_MODE0)      /* gpmc_advn_ale.gpmc_advn_ale */
 104                         AM33XX_IOPAD(0x894, PIN_OUTPUT_PULLUP | MUX_MODE0)      /* gpmc_oen_ren.gpmc_oen_ren */
 105                         AM33XX_IOPAD(0x898, PIN_OUTPUT_PULLUP | MUX_MODE0)      /* gpmc_wen.gpmc_wen */
 106                         AM33XX_IOPAD(0x89c, PIN_OUTPUT_PULLUP | MUX_MODE0)      /* gpmc_be0n_cle.gpmc_be0n_cle */
 107                 >;
 108         };
 109 };
 110
 111 &uart0 {
 112         pinctrl-names = "default";
 113         pinctrl-0 = <&uart0_pins>;
 114
 115         status = "okay";
 116 };
 117
 118 &i2c0 {
 119         pinctrl-names = "default";
 120         pinctrl-0 = <&i2c0_pins>;
 121
 122         status = "okay";
 123         clock-frequency = <400000>;
 124
 125         tps: tps@24 {
 126                 reg = <0x24>;
 127         };
 128
 129 };
 130
 131 &tps {
 132         compatible = "ti,tps65217";
 133
 134         regulators {
 135                 #address-cells = <1>;
 136                 #size-cells = <0>;
 137
 138                 dcdc1_reg: regulator@0 {
 139                         reg = <0>;
 140                         regulator-name = "vdds_dpr";
 141                         regulator-always-on;
 142                 };
 143
 144                 dcdc2_reg: regulator@1 {
 145                         reg = <1>;
 146                         /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
 147                         regulator-name = "vdd_mpu";
 148                         regulator-min-microvolt = <925000>;
 149                         regulator-max-microvolt = <1325000>;
 150                         regulator-boot-on;
 151                         regulator-always-on;
 152                 };
 153
 154                 dcdc3_reg: regulator@2 {
 155                         reg = <2>;
 156                         /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
 157                         regulator-name = "vdd_core";
 158                         regulator-min-microvolt = <925000>;
 159                         regulator-max-microvolt = <1150000>;
 160                         regulator-boot-on;
 161                         regulator-always-on;
 162                 };
 163
 164                 ldo1_reg: regulator@3 {
 165                         reg = <3>;
 166                         regulator-name = "vio,vrtc,vdds";
 167                         regulator-boot-on;
 168                         regulator-always-on;
 169                 };
 170
 171                 ldo2_reg: regulator@4 {
 172                         reg = <4>;
 173                         regulator-name = "vdd_3v3aux";
 174                         regulator-boot-on;
 175                         regulator-always-on;
 176                 };
 177
 178                 ldo3_reg: regulator@5 {
 179                         reg = <5>;
 180                         regulator-name = "vdd_1v8";
 181                         regulator-boot-on;
 182                         regulator-always-on;
 183                 };
 184
 185                 ldo4_reg: regulator@6 {
 186                         reg = <6>;
 187                         regulator-name = "vdd_3v3d";
 188                         regulator-boot-on;
 189                         regulator-always-on;
 190                 };
 191         };
 192 };
 193
 194 /* Ethernet MAC */
 195 &mac {
 196         slaves = <1>;
 197         pinctrl-names = "default", "sleep";
 198         pinctrl-0 = <&cpsw_default>;
 199         pinctrl-1 = <&cpsw_sleep>;
 200         status = "okay";
 201 };
 202
 203 &davinci_mdio {
 204         pinctrl-names = "default", "sleep";
 205         pinctrl-0 = <&davinci_mdio_default>;
 206         pinctrl-1 = <&davinci_mdio_sleep>;
 207         status = "okay";
 208 };
 209
 210 /* NAND Flash */
 211 &elm {
 212         status = "okay";
 213 };
 214
 215 &gpmc {
 216         status = "okay";
 217         pinctrl-names = "default";
 218         pinctrl-0 = <&nandflash_pins>;
 219         ranges = <0 0 0x08000000 0x01000000>; /* CS0 0 @addr 0x08000000, size 0x01000000 */
 220         nand@0,0 {
 221                 reg = <0 0 4>;  /* CS0, offset 0, IO size 4 */
 222                 ti,nand-ecc-opt = "bch8";
 223                 ti,elm-id = <&elm>;
 224                 nand-bus-width = <8>;
 225                 gpmc,device-width = <1>;
 226                 gpmc,sync-clk-ps = <0>;
 227                 gpmc,cs-on-ns = <0>;
 228                 gpmc,cs-rd-off-ns = <44>;
 229                 gpmc,cs-wr-off-ns = <44>;
 230                 gpmc,adv-on-ns = <6>;
 231                 gpmc,adv-rd-off-ns = <34>;
 232                 gpmc,adv-wr-off-ns = <44>;
 233                 gpmc,we-on-ns = <0>;
 234                 gpmc,we-off-ns = <40>;
 235                 gpmc,oe-on-ns = <0>;
 236                 gpmc,oe-off-ns = <54>;
 237                 gpmc,access-ns = <64>;
 238                 gpmc,rd-cycle-ns = <82>;
 239                 gpmc,wr-cycle-ns = <82>;
 240                 gpmc,wait-on-read = "true";
 241                 gpmc,wait-on-write = "true";
 242                 gpmc,bus-turnaround-ns = <0>;
 243                 gpmc,cycle2cycle-delay-ns = <0>;
 244                 gpmc,clk-activation-ns = <0>;
 245                 gpmc,wait-monitoring-ns = <0>;
 246                 gpmc,wr-access-ns = <40>;
 247                 gpmc,wr-data-mux-bus-ns = <0>;
 248         };
 249 };