184 lines
5.1 KiB
Plaintext
184 lines
5.1 KiB
Plaintext
/*
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* Device Tree file for Compulab SBC-A510 Single Board Computer
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*
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* Copyright (C) 2015, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the
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* License.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* SBC-A510 comprises a PCA9555 I2C GPIO expander its GPIO lines connected to
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*
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* 0.0 USB0 VBUS_EN (active high)
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* 0.1 USB0 VBUS_GOOD
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* 0.2 DVI transmitter TI TFP410 MSEN
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* 0.3 DVI transmitter TI TFP410 PD# (active low power down)
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* 0.4 LVDS transmitter DS90C365 PD# (active low power down)
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* 0.5 LCD nRST (active low reset)
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* 0.6 PCIe0 nRST (active low reset)
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* 0.7 mini-PCIe slot W_DISABLE#
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*
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* 1.0 MMC WP
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* 1.1 Camera Input FPC FLASH_STB and P21.5
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* 1.2 Camera Input FPC WE and P21.22
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* 1.3 MMC VCC_EN (active high) and P21.7
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* 1.4 Camera Input FPC AFTR_RST and P21.17
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* 1.5 Camera Input FPC OE and P21.19
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* 1.6 Camera Input FPC SNPSHT and P21.6
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* 1.7 Camera Input FPC SHTR and P21.10
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*/
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/dts-v1/;
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#include "dove-cm-a510.dtsi"
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/ {
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model = "Compulab SBC-A510";
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compatible = "compulab,sbc-a510", "compulab,cm-a510", "marvell,dove";
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chosen {
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stdout-path = &uart0;
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};
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regulators {
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usb0_power: regulator@2 {
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compatible = "regulator-fixed";
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regulator-name = "USB Power";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
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};
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mmc_power: regulator@3 {
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compatible = "regulator-fixed";
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regulator-name = "MMC Power";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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/* Ethernet0 depends on CM-A510 option E1 */
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&mdio { status = "disabled"; };
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ð { status = "disabled"; };
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ðphy { status = "disabled"; };
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/*
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* USB port 0 can be powered and monitored by I2C GPIO expander:
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* VBUS_ENABLE on GPIO0, VBUS_GOOD on GPIO1
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*/
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&ehci0 {
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status = "okay";
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vbus-supply = <&usb0_power>;
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};
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/* USB port 1 (and ports 2, 3 if CM-A510 has U4 option) */
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&ehci1 { status = "okay"; };
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/*
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* I2C bus layout:
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* i2c0:
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* - Audio Codec, 0x1a (option from CM-A510)
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* - DVI transmitter TI TFP410, 0x39
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* - HDMI/DVI DDC channel
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* i2c1:
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* - GPIO expander, NXP PCA9555, 0x20
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* - VGA DDC channel
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*/
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&i2c {
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pinctrl-0 = <&pmx_i2c1>;
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pinctrl-names = "default";
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};
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&i2c0 {
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/* TI TFP410 DVI transmitter */
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dvi: video@39 {
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compatible = "ti,tfp410";
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reg = <0x39>;
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powerdown-gpio = <&gpio_ext 3 GPIO_ACTIVE_LOW>;
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};
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};
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&i2c1 {
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status = "okay";
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/* NXP PCA9555 GPIO expander */
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gpio_ext: gpio@20 {
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compatible = "nxp,pca9555";
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reg = <0x20>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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&pcie { status = "okay"; };
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/*
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* PCIe0 can be configured by Jumper E1 to be either connected to
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* a mini-PCIe slot or a Pericom PI7C9X111 PCIe-to-PCI bridge.
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*/
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&pcie0 {
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status = "okay";
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pinctrl-0 = <&pmx_pcie0_clkreq>;
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pinctrl-names = "default";
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reset-gpios = <&gpio_ext 6 GPIO_ACTIVE_LOW>;
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};
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/* Ethernet1 depends on CM-A510 option E2 */
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&pcie1 { status = "disabled"; };
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/* SATA connector */
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&sata0 { status = "okay"; };
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/*
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* SDIO0 is connected to a MMC/SD/SDIO socket, I2C GPIO expander has
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* VCC_MMC_ENABLE on GPIO13, MMC_WP on GPIO10
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*/
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&sdio0 {
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vmmc-supply = <&mmc_power>;
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wp-gpios = <&gpio_ext 10 GPIO_ACTIVE_LOW>;
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status = "okay";
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};
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/* UART0 on RS232 mini-connector */
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&uart0 { status = "okay"; };
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/* UART2 on pin headers */
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&uart2 { status = "okay"; };
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