arch/arm/boot/dts/dove-sbc-a510.dts

   1 /*
   2  * Device Tree file for Compulab SBC-A510 Single Board Computer
   3  *
   4  * Copyright (C) 2015, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
   5  *
   6  * This file is dual-licensed: you can use it either under the terms
   7  * of the GPL or the X11 license, at your option. Note that this dual
   8  * licensing only applies to this file, and not this project as a
   9  * whole.
  10  *
  11  *  a) This file is free software; you can redistribute it and/or
  12  *     modify it under the terms of the GNU General Public License as
  13  *     published by the Free Software Foundation; version 2 of the
  14  *     License.
  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
  45 /*
  46  * SBC-A510 comprises a PCA9555 I2C GPIO expander its GPIO lines connected to
  47  *
  48  * 0.0 USB0 VBUS_EN (active high)
  49  * 0.1 USB0 VBUS_GOOD
  50  * 0.2 DVI transmitter TI TFP410 MSEN
  51  * 0.3 DVI transmitter TI TFP410 PD# (active low power down)
  52  * 0.4 LVDS transmitter DS90C365 PD# (active low power down)
  53  * 0.5 LCD nRST (active low reset)
  54  * 0.6 PCIe0 nRST (active low reset)
  55  * 0.7 mini-PCIe slot W_DISABLE#
  56  *
  57  * 1.0 MMC WP
  58  * 1.1 Camera Input FPC FLASH_STB and P21.5
  59  * 1.2 Camera Input FPC WE        and P21.22
  60  * 1.3 MMC VCC_EN (active high)   and P21.7
  61  * 1.4 Camera Input FPC AFTR_RST  and P21.17
  62  * 1.5 Camera Input FPC OE        and P21.19
  63  * 1.6 Camera Input FPC SNPSHT    and P21.6
  64  * 1.7 Camera Input FPC SHTR      and P21.10
  65  */
  66
  67 /dts-v1/;
  68
  69 #include "dove-cm-a510.dtsi"
  70
  71 / {
  72         model = "Compulab SBC-A510";
  73         compatible = "compulab,sbc-a510", "compulab,cm-a510", "marvell,dove";
  74
  75         chosen {
  76                 stdout-path = &uart0;
  77         };
  78
  79         regulators {
  80                 usb0_power: regulator@2 {
  81                         compatible = "regulator-fixed";
  82                         regulator-name = "USB Power";
  83                         regulator-min-microvolt = <5000000>;
  84                         regulator-max-microvolt = <5000000>;
  85                         gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
  86                 };
  87
  88                 mmc_power: regulator@3 {
  89                         compatible = "regulator-fixed";
  90                         regulator-name = "MMC Power";
  91                         regulator-min-microvolt = <3300000>;
  92                         regulator-max-microvolt = <3300000>;
  93                         gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
  94                 };
  95         };
  96 };
  97
  98 /* Ethernet0 depends on CM-A510 option E1 */
  99 &mdio { status = "disabled"; };
 100 &eth { status = "disabled"; };
 101 &ethphy { status = "disabled"; };
 102
 103 /*
 104  * USB port 0 can be powered and monitored by I2C GPIO expander:
 105  *  VBUS_ENABLE on GPIO0, VBUS_GOOD on GPIO1
 106  */
 107 &ehci0 {
 108         status = "okay";
 109         vbus-supply = <&usb0_power>;
 110 };
 111
 112 /* USB port 1 (and ports 2, 3 if CM-A510 has U4 option) */
 113 &ehci1 { status = "okay"; };
 114
 115 /*
 116  * I2C bus layout:
 117  * i2c0:
 118  *  - Audio Codec, 0x1a (option from CM-A510)
 119  *  - DVI transmitter TI TFP410, 0x39
 120  *  - HDMI/DVI DDC channel
 121  * i2c1:
 122  *  - GPIO expander, NXP PCA9555, 0x20
 123  *  - VGA DDC channel
 124  */
 125 &i2c {
 126         pinctrl-0 = <&pmx_i2c1>;
 127         pinctrl-names = "default";
 128 };
 129
 130 &i2c0 {
 131         /* TI TFP410 DVI transmitter */
 132         dvi: video@39 {
 133                 compatible = "ti,tfp410";
 134                 reg = <0x39>;
 135                 powerdown-gpio = <&gpio_ext 3 GPIO_ACTIVE_LOW>;
 136         };
 137 };
 138
 139 &i2c1 {
 140         status = "okay";
 141
 142         /* NXP PCA9555 GPIO expander */
 143         gpio_ext: gpio@20 {
 144                 compatible = "nxp,pca9555";
 145                 reg = <0x20>;
 146                 #gpio-cells = <2>;
 147         };
 148 };
 149
 150 &pcie { status = "okay"; };
 151
 152 /*
 153  * PCIe0 can be configured by Jumper E1 to be either connected to
 154  * a mini-PCIe slot or a Pericom PI7C9X111 PCIe-to-PCI bridge.
 155  */
 156 &pcie0 {
 157         status = "okay";
 158         pinctrl-0 = <&pmx_pcie0_clkreq>;
 159         pinctrl-names = "default";
 160         reset-gpios = <&gpio_ext 6 GPIO_ACTIVE_LOW>;
 161 };
 162
 163 /* Ethernet1 depends on CM-A510 option E2 */
 164 &pcie1 { status = "disabled"; };
 165
 166 /* SATA connector */
 167 &sata0 { status = "okay"; };
 168
 169 /*
 170  * SDIO0 is connected to a MMC/SD/SDIO socket, I2C GPIO expander has
 171  *  VCC_MMC_ENABLE on GPIO13, MMC_WP on GPIO10
 172  */
 173 &sdio0 {
 174         vmmc-supply = <&mmc_power>;
 175         wp-gpios = <&gpio_ext 10 GPIO_ACTIVE_LOW>;
 176         status = "okay";
 177 };
 178
 179 /* UART0 on RS232 mini-connector */
 180 &uart0 { status = "okay"; };
 181 /* UART2 on pin headers */
 182 &uart2 { status = "okay"; };