linux/arch/arm/boot/dts/sun6i-a31s-sina31s.dts
Chen-Yu Tsai c9c9ac714b ARM: dts: sun6i: sina31s: Enable USB OTG controller in peripheral mode
While the SinA31s does have a proper 5-pin mini USB OTG port, the ID
pin does not seem to work. The pin used in the schematics is always low,
regardless of the attached OTG cable or SoC internal pin bias settings.

The v1.5 board is missing bias resistors shown in the schematics for
earlier revisions, and the connections of the remaining one does not
match the schematics either.

In addition, VBUS for this port is disconnected from the board's 5V
power rail. The board features a pad to solder jumper pins to connect
VBUS to 5V manually.

Given the above and the fact that the board has 5 more USB host ports,
it makes more sense to have the OTG port work in peripheral mode.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-18 08:10:44 +01:00

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/*
* Copyright 2015 Chen-Yu Tsai <wens@csie.org>
*
* 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; either version 2 of the
* License, or (at your option) any later version.
*
* 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.
*/
/* The SinA31s development board has the SinA31s core board soldered on */
#include "sun6i-a31s-sina31s-core.dtsi"
#include <dt-bindings/input/input.h>
/ {
model = "Sinlinx SinA31s Development Board";
compatible = "sinlinx,sina31s-sdk", "allwinner,sun6i-a31s";
chosen {
stdout-path = "serial0:115200n8";
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&led_pin_sina31s>;
status {
label = "sina31s:status:usr";
gpios = <&pio 7 13 GPIO_ACTIVE_HIGH>; /* PH13 */
};
};
};
&codec {
allwinner,audio-routing =
"Line Out", "LINEOUT",
"MIC1", "Mic",
"Mic", "MBIAS";
status = "okay";
};
&ehci0 {
/* USB 2.0 4 port hub IC */
status = "okay";
};
&ehci1 {
status = "okay";
};
&gmac {
pinctrl-names = "default";
pinctrl-0 = <&gmac_pins_mii_a>;
phy = <&phy1>;
phy-mode = "mii";
phy-supply = <&reg_dldo1>;
status = "okay";
phy1: ethernet-phy@1 {
reg = <1>;
};
};
&ir {
pinctrl-names = "default";
pinctrl-0 = <&ir_pins_a>;
status = "okay";
};
&lradc {
vref-supply = <&reg_aldo3>;
status = "okay";
button@158 {
label = "Volume Up";
linux,code = <KEY_VOLUMEUP>;
channel = <0>;
voltage = <158730>;
};
button@349 {
label = "Volume Down";
linux,code = <KEY_VOLUMEDOWN>;
channel = <0>;
voltage = <349206>;
};
};
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_sina31s>;
vmmc-supply = <&reg_dcdc1>;
bus-width = <4>;
cd-gpios = <&pio 0 4 GPIO_ACTIVE_HIGH>; /* PA4 */
cd-inverted;
status = "okay";
};
&ohci1 {
status = "okay";
};
&pio {
led_pin_sina31s: led_pin@0 {
pins = "PH13";
function = "gpio_out";
};
mmc0_cd_pin_sina31s: mmc0_cd_pin@0 {
pins = "PA4";
function = "gpio_in";
bias-pull-up;
};
};
&reg_dldo1 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-gmac-phy";
};
&usb_otg {
dr_mode = "peripheral";
status = "okay";
};
&usbphy {
status = "okay";
};