/*
* 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"; };
ð { status = "disabled"; };
ðphy { 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-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"; };
