FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/dove-sbc-a510.dts

     /*
      * Device Tree file for Compulab SBC-A510 Single Board Computer
      *
      * Copyright (C) 2015, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
      *
      * 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 as
     *     published by the Free Software Foundation; version 2 of the
     *     License.
     *
     *     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 "AS IS", 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.
     */
    
    /*
     * SBC-A510 comprises a PCA9555 I2C GPIO expander its GPIO lines connected to
     *
     * 0.0 USB0 VBUS_EN (active high)
     * 0.1 USB0 VBUS_GOOD
     * 0.2 DVI transmitter TI TFP410 MSEN
     * 0.3 DVI transmitter TI TFP410 PD# (active low power down)
     * 0.4 LVDS transmitter DS90C365 PD# (active low power down)
     * 0.5 LCD nRST (active low reset)
     * 0.6 PCIe0 nRST (active low reset)
     * 0.7 mini-PCIe slot W_DISABLE#
     *
     * 1.0 MMC WP
     * 1.1 Camera Input FPC FLASH_STB and P21.5
     * 1.2 Camera Input FPC WE        and P21.22
     * 1.3 MMC VCC_EN (active high)   and P21.7
     * 1.4 Camera Input FPC AFTR_RST  and P21.17
     * 1.5 Camera Input FPC OE        and P21.19
     * 1.6 Camera Input FPC SNPSHT    and P21.6
     * 1.7 Camera Input FPC SHTR      and P21.10
     */
    
    /dts-v1/;
    
    #include "dove-cm-a510.dtsi"
    
    / {
            model = "Compulab SBC-A510";
            compatible = "compulab,sbc-a510", "compulab,cm-a510", "marvell,dove";
    
            chosen {
                    stdout-path = &uart0;
            };
    
            regulators {
                    usb0_power: regulator@2 {
                            compatible = "regulator-fixed";
                            regulator-name = "USB Power";
                            regulator-min-microvolt = <5000000>;
                            regulator-max-microvolt = <5000000>;
                            gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
                    };
    
                    mmc_power: regulator@3 {
                            compatible = "regulator-fixed";
                            regulator-name = "MMC Power";
                            regulator-min-microvolt = <3300000>;
                            regulator-max-microvolt = <3300000>;
                            gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
                    };
            };
    };
    
    /* Ethernet0 depends on CM-A510 option E1 */
    &mdio { status = "disabled"; };
   &eth { status = "disabled"; };
   &ethphy { status = "disabled"; };
   
   /*
    * USB port 0 can be powered and monitored by I2C GPIO expander:
    *  VBUS_ENABLE on GPIO0, VBUS_GOOD on GPIO1
    */
   &ehci0 {
           status = "okay";
           vbus-supply = <&usb0_power>;
   };
   
   /* USB port 1 (and ports 2, 3 if CM-A510 has U4 option) */
   &ehci1 { status = "okay"; };
   
   /*
    * I2C bus layout:
    * i2c0:
    *  - Audio Codec, 0x1a (option from CM-A510)
    *  - DVI transmitter TI TFP410, 0x39
    *  - HDMI/DVI DDC channel
    * i2c1:
    *  - GPIO expander, NXP PCA9555, 0x20
    *  - VGA DDC channel
    */
   &i2c {
           pinctrl-0 = <&pmx_i2c1>;
           pinctrl-names = "default";
   };
   
   &i2c0 {
           /* TI TFP410 DVI transmitter */
           dvi: video@39 {
                   compatible = "ti,tfp410";
                   reg = <0x39>;
                   powerdown-gpio = <&gpio_ext 3 GPIO_ACTIVE_LOW>;
           };
   };
   
   &i2c1 {
           status = "okay";
   
           /* NXP PCA9555 GPIO expander */
           gpio_ext: gpio@20 {
                   compatible = "nxp,pca9555";
                   reg = <0x20>;
                   gpio-controller;
                   #gpio-cells = <2>;
           };
   };
   
   &pcie { status = "okay"; };
   
   /*
    * PCIe0 can be configured by Jumper E1 to be either connected to
    * a mini-PCIe slot or a Pericom PI7C9X111 PCIe-to-PCI bridge.
    */
   &pcie0 {
           status = "okay";
           pinctrl-0 = <&pmx_pcie0_clkreq>;
           pinctrl-names = "default";
           reset-gpios = <&gpio_ext 6 GPIO_ACTIVE_LOW>;
   };
   
   /* Ethernet1 depends on CM-A510 option E2 */
   &pcie1 { status = "disabled"; };
   
   /* SATA connector */
   &sata0 { status = "okay"; };
   
   /*
    * SDIO0 is connected to a MMC/SD/SDIO socket, I2C GPIO expander has
    *  VCC_MMC_ENABLE on GPIO13, MMC_WP on GPIO10
    */
   &sdio0 {
           vmmc-supply = <&mmc_power>;
           wp-gpios = <&gpio_ext 10 GPIO_ACTIVE_LOW>;
           status = "okay";
   };
   
   /* UART0 on RS232 mini-connector */
   &uart0 { status = "okay"; };
   /* UART2 on pin headers */
   &uart2 { status = "okay"; };

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