/* * Copyright (C) 2013,2014 Russell King * * This describes the hookup for an AR8035 to the iMX6 on the SolidRun * MicroSOM. * * This file is dual-licensed: you can use it either under the terms * of the GPL or the X11 license, at your option. Note that this dual * licensing only applies to this file, and not this project as a * whole. * * a) This file is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This file is distributed in the hope that it will be useful * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Or, alternatively * * b) Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use * copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ &fec { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_microsom_enet_ar8035>; phy-mode = "rgmii"; phy-reset-duration = <2>; phy-reset-gpios = <&gpio4 15 0>; status = "okay"; }; &iomuxc { enet { pinctrl_microsom_enet_ar8035: microsom-enet-ar8035 { fsl,pins = < MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b8b0 MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0 /* AR8035 reset */ MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x130b0 /* AR8035 interrupt */ MX6QDL_PAD_DI0_PIN2__GPIO4_IO18 0x80000000 /* GPIO16 -> AR8035 25MHz */ MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0xc0000000 MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x80000000 MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1b030 MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1b030 MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1b030 MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1b030 MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b030 /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */ MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x0a0b1 /* AR8035 pin strapping: IO voltage: pull up */ MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b030 /* AR8035 pin strapping: PHYADDR#0: pull down */ MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x13030 /* AR8035 pin strapping: PHYADDR#1: pull down */ MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x13030 /* AR8035 pin strapping: MODE#1: pull up */ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b030 /* AR8035 pin strapping: MODE#3: pull up */ MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b030 /* AR8035 pin strapping: MODE#0: pull down */ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x13030 /* * As the RMII pins are also connected to RGMII * so that an AR8030 can be placed, set these * to high-z with the same pulls as above. * Use the GPIO settings to avoid changing the * input select registers. */ MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x03000 MX6QDL_PAD_ENET_RXD0__GPIO1_IO27 0x03000 MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x03000 >; }; }; };