1/* 2 * Copyright (C) 2013,2014 Russell King 3 * 4 * This describes the hookup for an AR8035 to the iMX6 on the SolidRun 5 * MicroSOM. 6 * 7 * This file is dual-licensed: you can use it either under the terms 8 * of the GPL or the X11 license, at your option. Note that this dual 9 * licensing only applies to this file, and not this project as a 10 * whole. 11 * 12 * a) This file is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License 14 * version 2 as published by the Free Software Foundation. 15 * 16 * This file is distributed in the hope that it will be useful 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * Or, alternatively 22 * 23 * b) Permission is hereby granted, free of charge, to any person 24 * obtaining a copy of this software and associated documentation 25 * files (the "Software"), to deal in the Software without 26 * restriction, including without limitation the rights to use 27 * copy, modify, merge, publish, distribute, sublicense, and/or 28 * sell copies of the Software, and to permit persons to whom the 29 * Software is furnished to do so, subject to the following 30 * conditions: 31 * 32 * The above copyright notice and this permission notice shall be 33 * included in all copies or substantial portions of the Software. 34 * 35 * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND 36 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 37 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 38 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 39 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY 40 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 41 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 42 * OTHER DEALINGS IN THE SOFTWARE. 43 */ 44&fec { 45 pinctrl-names = "default"; 46 pinctrl-0 = <&pinctrl_microsom_enet_ar8035>; 47 phy-mode = "rgmii"; 48 phy-reset-duration = <2>; 49 phy-reset-gpios = <&gpio4 15 0>; 50 status = "okay"; 51}; 52 53&iomuxc { 54 enet { 55 pinctrl_microsom_enet_ar8035: microsom-enet-ar8035 { 56 fsl,pins = < 57 MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b8b0 58 MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0 59 /* AR8035 reset */ 60 MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x130b0 61 /* AR8035 interrupt */ 62 MX6QDL_PAD_DI0_PIN2__GPIO4_IO18 0x80000000 63 /* GPIO16 -> AR8035 25MHz */ 64 MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0xc0000000 65 MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x80000000 66 MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1b030 67 MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1b030 68 MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1b030 69 MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1b030 70 MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b030 71 /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */ 72 MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x0a0b1 73 /* AR8035 pin strapping: IO voltage: pull up */ 74 MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b030 75 /* AR8035 pin strapping: PHYADDR#0: pull down */ 76 MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x13030 77 /* AR8035 pin strapping: PHYADDR#1: pull down */ 78 MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x13030 79 /* AR8035 pin strapping: MODE#1: pull up */ 80 MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b030 81 /* AR8035 pin strapping: MODE#3: pull up */ 82 MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b030 83 /* AR8035 pin strapping: MODE#0: pull down */ 84 MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x13030 85 86 /* 87 * As the RMII pins are also connected to RGMII 88 * so that an AR8030 can be placed, set these 89 * to high-z with the same pulls as above. 90 * Use the GPIO settings to avoid changing the 91 * input select registers. 92 */ 93 MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x03000 94 MX6QDL_PAD_ENET_RXD0__GPIO1_IO27 0x03000 95 MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x03000 96 >; 97 }; 98 }; 99}; 100