arch/arm/boot/dts/imx6qdl-sr-som.dtsi

   1 /*
   2  * Copyright (C) 2013,2014 Russell King
   3  *
   4  * This file is dual-licensed: you can use it either under the terms
   5  * of the GPL or the X11 license, at your option. Note that this dual
   6  * licensing only applies to this file, and not this project as a
   7  * whole.
   8  *
   9  *  a) This file is free software; you can redistribute it and/or
  10  *     modify it under the terms of the GNU General Public License
  11  *     version 2 as published by the Free Software Foundation.
  12  *
  13  *     This file is distributed in the hope that it will be useful,
  14  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *     GNU General Public License for more details.
  17  *
  18  * Or, alternatively,
  19  *
  20  *  b) Permission is hereby granted, free of charge, to any person
  21  *     obtaining a copy of this software and associated documentation
  22  *     files (the "Software"), to deal in the Software without
  23  *     restriction, including without limitation the rights to use,
  24  *     copy, modify, merge, publish, distribute, sublicense, and/or
  25  *     sell copies of the Software, and to permit persons to whom the
  26  *     Software is furnished to do so, subject to the following
  27  *     conditions:
  28  *
  29  *     The above copyright notice and this permission notice shall be
  30  *     included in all copies or substantial portions of the Software.
  31  *
  32  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  33  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  34  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  35  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  36  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  37  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  38  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  39  *     OTHER DEALINGS IN THE SOFTWARE.
  40  */
  41 #include <dt-bindings/gpio/gpio.h>
  42
  43 / {
  44         vcc_3v3: regulator-vcc-3v3 {
  45                 compatible = "regulator-fixed";
  46                 regulator-always-on;
  47                 regulator-name = "vcc_3v3";
  48                 regulator-min-microvolt = <3300000>;
  49                 regulator-max-microvolt = <3300000>;
  50         };
  51 };
  52
  53 &fec {
  54         pinctrl-names = "default";
  55         pinctrl-0 = <&pinctrl_microsom_enet_ar8035>;
  56         phy-mode = "rgmii";
  57         phy-reset-duration = <2>;
  58         phy-reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
  59         status = "okay";
  60 };
  61
  62 &iomuxc {
  63         microsom {
  64                 pinctrl_microsom_enet_ar8035: microsom-enet-ar8035 {
  65                         fsl,pins = <
  66                                 MX6QDL_PAD_ENET_MDIO__ENET_MDIO         0x1b8b0
  67                                 MX6QDL_PAD_ENET_MDC__ENET_MDC           0x1b0b0
  68                                 /* AR8035 reset */
  69                                 MX6QDL_PAD_KEY_ROW4__GPIO4_IO15         0x130b0
  70                                 /* AR8035 interrupt */
  71                                 MX6QDL_PAD_DI0_PIN2__GPIO4_IO18         0x1b0b0
  72                                 /* GPIO16 -> AR8035 25MHz */
  73                                 MX6QDL_PAD_GPIO_16__ENET_REF_CLK        0x4001b0b0
  74                                 MX6QDL_PAD_RGMII_TXC__RGMII_TXC         0x13030
  75                                 MX6QDL_PAD_RGMII_TD0__RGMII_TD0         0x1b030
  76                                 MX6QDL_PAD_RGMII_TD1__RGMII_TD1         0x1b030
  77                                 MX6QDL_PAD_RGMII_TD2__RGMII_TD2         0x1b030
  78                                 MX6QDL_PAD_RGMII_TD3__RGMII_TD3         0x1b030
  79                                 MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL   0x1b030
  80                                 /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
  81                                 MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK    0x0a0b1
  82                                 /* AR8035 pin strapping: IO voltage: pull up */
  83                                 MX6QDL_PAD_RGMII_RXC__RGMII_RXC         0x1b030
  84                                 /* AR8035 pin strapping: PHYADDR#0: pull down */
  85                                 MX6QDL_PAD_RGMII_RD0__RGMII_RD0         0x13030
  86                                 /* AR8035 pin strapping: PHYADDR#1: pull down */
  87                                 MX6QDL_PAD_RGMII_RD1__RGMII_RD1         0x13030
  88                                 /* AR8035 pin strapping: MODE#1: pull up */
  89                                 MX6QDL_PAD_RGMII_RD2__RGMII_RD2         0x1b030
  90                                 /* AR8035 pin strapping: MODE#3: pull up */
  91                                 MX6QDL_PAD_RGMII_RD3__RGMII_RD3         0x1b030
  92                                 /* AR8035 pin strapping: MODE#0: pull down */
  93                                 MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL   0x13030
  94
  95                                 /*
  96                                  * As the RMII pins are also connected to RGMII
  97                                  * so that an AR8030 can be placed, set these
  98                                  * to high-z with the same pulls as above.
  99                                  * Use the GPIO settings to avoid changing the
 100                                  * input select registers.
 101                                  */
 102                                 MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25      0x03000
 103                                 MX6QDL_PAD_ENET_RXD0__GPIO1_IO27        0x03000
 104                                 MX6QDL_PAD_ENET_RXD1__GPIO1_IO26        0x03000
 105                         >;
 106                 };
 107
 108                 pinctrl_microsom_uart1: microsom-uart1 {
 109                         fsl,pins = <
 110                                 MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA    0x1b0b1
 111                                 MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA    0x1b0b1
 112                         >;
 113                 };
 114         };
 115 };
 116
 117 &uart1 {
 118         pinctrl-names = "default";
 119         pinctrl-0 = <&pinctrl_microsom_uart1>;
 120         status = "okay";
 121 };