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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5d0c8b190a
Enable the otg/drc usb controller on the pcDuino1/2 board. Note that the pcDuino1 FEX file from the vendor contains the following information in the [usbc0] section: usb_id_gpio = port:PH04<0><1><default><default> usb_det_vbus_gpio = port:PH05<0><0><default><default> usb_drv_vbus_gpio = port:PB09<1><0><default><0> While the pcDuino2 FEX has: usb_id_gpio = port:PH04<0><1><default><default> usb_det_vbus_gpio = port:PH05<0><0><default><default> usb_drv_vbus_gpio = port:PD02<1><0><default><0> The ID pin is indeed PH4. The PD2 pin can be used to switch power on/off for the USB Type A receptacle on pcDuino2, but it has nothing to do with the MicroUSB OTG receptacle. The VBUS pin of the MicroUSB receptacle is always connected to 5V according to the schematics (both pcDuino1 and pcDuino2) and confirmed by doing some tests on pcDuino2. The PH5 pin is just one of the pins on the J8 expansion header and has nothing to do with USB OTG. The PB9 pin is pulled up and connected to the N_VBUSEN pin of AXP209 PMIC, while the VBUS pin of AXP209 only has a capacitor between it and the ground (this pin is not used for anything else). To sum it up. Only the ID pin (PH4) has a real use. And 5V voltage is always served to the MicroUSB OTG receptacle no matter what is the state of the PB9/PD2 pins. This patch has been tested on pcDuino2 to work fine in a host role with a USB keyboard connected via an OTG cable. It also works fine in a device role (cdc_ether) with a regular Micro-B cable connected to a desktop PC. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
240 lines
5.3 KiB
Plaintext
240 lines
5.3 KiB
Plaintext
/*
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* Copyright 2014 Zoltan HERPAI
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* Zoltan HERPAI <wigyori@uid0.hu>
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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; either version 2 of the
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* License, or (at your option) any later version.
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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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/dts-v1/;
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#include "sun4i-a10.dtsi"
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#include "sunxi-common-regulators.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/pinctrl/sun4i-a10.h>
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/ {
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model = "LinkSprite pcDuino";
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compatible = "linksprite,a10-pcduino", "allwinner,sun4i-a10";
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aliases {
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serial0 = &uart0;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&led_pins_pcduino>;
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tx {
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label = "pcduino:green:tx";
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gpios = <&pio 7 15 GPIO_ACTIVE_LOW>;
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};
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rx {
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label = "pcduino:green:rx";
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gpios = <&pio 7 16 GPIO_ACTIVE_LOW>;
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&key_pins_pcduino>;
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#address-cells = <1>;
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#size-cells = <0>;
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button@0 {
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label = "Key Back";
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linux,code = <KEY_BACK>;
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gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;
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};
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button@1 {
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label = "Key Home";
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linux,code = <KEY_HOME>;
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gpios = <&pio 7 18 GPIO_ACTIVE_LOW>;
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};
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button@2 {
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label = "Key Menu";
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linux,code = <KEY_MENU>;
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gpios = <&pio 7 19 GPIO_ACTIVE_LOW>;
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};
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};
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};
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&cpu0 {
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cpu-supply = <®_dcdc2>;
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};
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&ehci0 {
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status = "okay";
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};
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&ehci1 {
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status = "okay";
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};
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&emac {
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pinctrl-names = "default";
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pinctrl-0 = <&emac_pins_a>;
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phy = <&phy1>;
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status = "okay";
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};
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&emac_sram {
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status = "okay";
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};
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&i2c0 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c0_pins_a>;
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status = "okay";
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axp209: pmic@34 {
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reg = <0x34>;
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interrupts = <0>;
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};
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};
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&mdio {
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status = "okay";
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phy1: ethernet-phy@1 {
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reg = <1>;
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};
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};
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&mmc0 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
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vmmc-supply = <®_vcc3v3>;
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bus-width = <4>;
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cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
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cd-inverted;
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status = "okay";
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};
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&ohci0 {
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status = "okay";
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};
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&ohci1 {
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status = "okay";
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};
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&otg_sram {
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status = "okay";
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};
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&pio {
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led_pins_pcduino: led_pins@0 {
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allwinner,pins = "PH15", "PH16";
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allwinner,function = "gpio_out";
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allwinner,drive = <SUN4I_PINCTRL_10_MA>;
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allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
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};
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key_pins_pcduino: key_pins@0 {
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allwinner,pins = "PH17", "PH18", "PH19";
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allwinner,function = "gpio_in";
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allwinner,drive = <SUN4I_PINCTRL_10_MA>;
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allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
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};
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usb0_id_detect_pin: usb0_id_detect_pin@0 {
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allwinner,pins = "PH4";
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allwinner,function = "gpio_in";
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allwinner,drive = <SUN4I_PINCTRL_10_MA>;
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allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
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};
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};
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#include "axp209.dtsi"
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®_dcdc2 {
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regulator-always-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1400000>;
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regulator-name = "vdd-cpu";
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};
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®_dcdc3 {
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regulator-always-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1400000>;
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regulator-name = "vdd-int-dll";
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};
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®_ldo1 {
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regulator-name = "vdd-rtc";
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};
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®_ldo2 {
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regulator-always-on;
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regulator-min-microvolt = <3000000>;
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regulator-max-microvolt = <3000000>;
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regulator-name = "avcc";
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};
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_pins_a>;
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status = "okay";
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};
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&usb_otg {
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dr_mode = "otg";
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status = "okay";
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};
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&usbphy {
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pinctrl-names = "default";
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pinctrl-0 = <&usb0_id_detect_pin>;
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usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
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usb1_vbus-supply = <®_vcc5v0>; /* USB1 VBUS is always on */
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usb2_vbus-supply = <®_vcc5v0>; /* USB2 VBUS is always on */
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status = "okay";
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};
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