| Message ID | 20160831081817.5191-7-maxime.ripard@free-electrons.com |
|---|---|
| State | New |
| Headers | show |
Hi, On Wed, Aug 31, 2016 at 4:18 PM, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > From: Mylène Josserand <mylene.josserand@free-electrons.com> > > The GR8-EVB is a small board with an NextThing GR8, an Hynix MLC NAND, > an AXP209 PMIC, USB host and OTG, an SPDIF output and a connectors for CSI, > I2S and LCD. > > Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> > --- > arch/arm/boot/dts/Makefile | 3 +- > arch/arm/boot/dts/gr8-evb.dts | 378 ++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 380 insertions(+), 1 deletion(-) > create mode 100644 arch/arm/boot/dts/gr8-evb.dts > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 7dd4a07c4784..8226b0a2e178 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -734,7 +734,8 @@ dtb-$(CONFIG_MACH_SUN5I) += \ > sun5i-a13-olinuxino-micro.dtb \ > sun5i-a13-q8-tablet.dtb \ > sun5i-a13-utoo-p66.dtb \ > - sun5i-r8-chip.dtb > + sun5i-r8-chip.dtb \ > + gr8-evb.dtb > dtb-$(CONFIG_MACH_SUN6I) += \ > sun6i-a31-app4-evb1.dtb \ > sun6i-a31-colombus.dtb \ > diff --git a/arch/arm/boot/dts/gr8-evb.dts b/arch/arm/boot/dts/gr8-evb.dts > new file mode 100644 > index 000000000000..e334d18d7bf0 > --- /dev/null > +++ b/arch/arm/boot/dts/gr8-evb.dts > @@ -0,0 +1,378 @@ > +/* > + * Copyright 2016 Free Electrons > + * Copyright 2016 NextThing Co > + * > + * Mylène Josserand <mylene.josserand@free-electrons.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; 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. > + */ > + > +/dts-v1/; > +#include "gr8.dtsi" > +#include "sunxi-common-regulators.dtsi" > + > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/input/input.h> > +#include <dt-bindings/interrupt-controller/irq.h> > + > +/ { > + model = "NextThing GR8-EVB"; > + compatible = "nextthing,gr8-evb", "nextthing,gr8"; > + > + aliases { > + i2c0 = &i2c0; > + i2c1 = &i2c1; > + i2c2 = &i2c2; > + serial0 = &uart1; > + serial1 = &uart2; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > + > + backlight: backlight { > + compatible = "pwm-backlight"; > + pwms = <&pwm 0 10000 0>; > + enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>; > + > + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; > + default-brightness-level = <8>; > + }; > + > + panel { > + compatible = "allwinner,sun4i-a10-sub-evb-5-lcd"; > + enable-gpios = <&axp_gpio 0 GPIO_ACTIVE_HIGH>; > + backlight = <&backlight>; > + power-supply = <®_vcc3v0>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + panel_input: endpoint@0 { > + reg = <0>; > + remote-endpoint = <&tcon0_out_panel>; > + }; > + }; > + }; > +}; > + > +&be0 { > + status = "okay"; > +}; > + > +&codec { > + status = "okay"; > +}; > + > +&ehci0 { > + status = "okay"; > +}; > + > +&i2c0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&i2c0_pins_a>; > + status = "okay"; > + > + axp209: pmic@34 { > + reg = <0x34>; > + > + /* > + * The interrupt is routed through the "External Fast > + * Interrupt Request" pin (ball G13 of the module) > + * directly to the main interrupt controller, without > + * any other controller interfering. > + */ > + interrupts = <0>; > + }; > +}; > + > +#include "axp209.dtsi" > + > +&i2c1 { > + pinctrl-names = "default"; > + pinctrl-0 = <&i2c1_pins_a>; > + status = "okay"; > + > + pcf8563: rtc@51 { > + compatible = "phg,pcf8563"; > + reg = <0x51>; > + }; > + > + wm8978: codec@1a { > + #sound-dai-cells = <0>; > + compatible = "wlf,wm8978"; > + reg = <0x1a>; > + }; > +}; > + > +&i2c2 { > + pinctrl-names = "default"; > + pinctrl-0 = <&i2c2_pins_a>; > + status = "okay"; > +}; > + > +&i2s0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&i2s0_pins_a>; > + status = "okay"; > +}; > + > +&ir0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&ir0_rx_pins_a>; > + status = "okay"; > +}; > + > +&lradc { > + vref-supply = <®_ldo2>; > + status = "okay"; > + > + button@190 { > + label = "Volume Up"; > + linux,code = <KEY_VOLUMEUP>; > + channel = <0>; > + voltage = <190000>; > + }; > + > + button@390 { > + label = "Volume Down"; > + linux,code = <KEY_VOLUMEDOWN>; > + channel = <0>; > + voltage = <390000>; > + }; > + > + button@600 { > + label = "Menu"; > + linux,code = <KEY_MENU>; > + channel = <0>; > + voltage = <600000>; > + }; > + > + button@800 { > + label = "Search"; > + linux,code = <KEY_SEARCH>; > + channel = <0>; > + voltage = <800000>; > + }; > + > + button@980 { > + label = "Home"; > + linux,code = <KEY_HOMEPAGE>; > + channel = <0>; > + voltage = <980000>; > + }; > + > + button@1180 { > + label = "Esc"; > + linux,code = <KEY_ESC>; > + channel = <0>; > + voltage = <1180000>; > + }; > + > + button@1400 { > + label = "Enter"; > + linux,code = <KEY_ENTER>; > + channel = <0>; > + voltage = <1400000>; > + }; > +}; > + > +&mmc0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gr8_evb>; > + vmmc-supply = <®_vcc3v3>; > + bus-width = <4>; > + cd-gpios = <&pio 6 0 GPIO_ACTIVE_HIGH>; /* PG0 */ > + cd-inverted; > + status = "okay"; > +}; > + > +&nfc { > + pinctrl-names = "default"; > + pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>; > + > + /* MLC Support sucks for now */ > + status = "disabled"; > +}; > + > +&ohci0 { > + status = "okay"; > +}; > + > +&otg_sram { > + status = "okay"; > +}; > + > +&pio { > + mmc0_cd_pin_gr8_evb: mmc0-cd-pin@0 { > + allwinner,pins = "PG0"; > + allwinner,function = "gpio_in"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > + }; > + > + usb0_id_pin_gr8_evb: usb0-id-pin@0 { > + allwinner,pins = "PG2"; > + allwinner,function = "gpio_in"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > + }; > + > + usb0_vbus_det_pin_gr8_evb: usb0-vbus-det-pin@0 { > + allwinner,pins = "PG1"; > + allwinner,function = "gpio_in"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > + }; > + > + usb1_vbus_pin_gr8_evb: usb1-vbus-pin@0 { > + allwinner,pins = "PG13"; > + allwinner,function = "gpio_out"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > + }; > +}; > + > +&pwm { > + pinctrl-names = "default"; > + pinctrl-0 = <&pwm0_pins_a>; > + status = "okay"; > +}; > + > +®_dcdc2 { > + regulator-min-microvolt = <1000000>; > + regulator-max-microvolt = <1400000>; > + regulator-name = "vdd-cpu"; > + regulator-always-on; > +}; > + > +®_dcdc3 { > + regulator-min-microvolt = <1000000>; > + regulator-max-microvolt = <1300000>; > + regulator-name = "vdd-sys"; > + regulator-always-on; > +}; > + > +®_ldo1 { > + regulator-name = "vdd-rtc"; > +}; > + > +®_ldo2 { > + regulator-min-microvolt = <2700000>; > + regulator-max-microvolt = <3300000>; > + regulator-name = "avcc"; > + regulator-always-on; > +}; > + > +®_usb1_vbus { > + pinctrl-0 = <&usb1_vbus_pin_gr8_evb>; > + gpio = <&pio 6 13 GPIO_ACTIVE_HIGH>; > + status = "okay"; > +}; > + > +&rtp { > + allwinner,ts-attached; > +}; > + > +&spdif { > + pinctrl-names = "default"; > + pinctrl-0 = <&spdif_tx_pins_a>; > + status = "okay"; > +}; > + > +&tcon0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&lcd_rgb666_pins>; > + status = "okay"; > +}; > + > +&tcon0_out { > + #address-cells = <1>; > + #size-cells = <0>; > + > + tcon0_out_panel: endpoint@0 { > + reg = <0>; > + remote-endpoint = <&panel_input>; > + }; > +}; > + > +&tve0 { > + status = "okay"; > +}; > + > +&uart1 { > + pinctrl-names = "default"; > + pinctrl-0 = <&uart1_pins_a>, <&uart1_cts_rts_pins_a>; > + status = "okay"; > +}; > + > +&usb_otg { > + /* > + * The GR8-EVB has a somewhat interesting design. There's a > + * pin supposed to control VBUS, an ID pin, a VBUS detect pin, > + * so everything should work just fine. > + * > + * Except that the pin supposed to control VBUS is not > + * connected to any controllable output, neither to the SoC > + * through a GPIO or to the PMIC, and it is pulled down, > + * meaning that we will never be able to enable VBUS on this > + * board. > + */ IIRC, Hans made OTG work with boards that don't have VBUS control. All you need is a powered hub. And since there's no chance of VBUS going back through the connection to hurt the host on the other end when in peripheral mode, I think it's ok to put it in OTG mode here. The rest looks fine. ChenYu > + dr_mode = "peripheral"; > + status = "okay"; > +}; > + > +&usb_power_supply { > + status = "okay"; > +}; > + > +&usbphy { > + pinctrl-names = "default"; > + pinctrl-0 = <&usb0_id_pin_gr8_evb>, <&usb0_vbus_det_pin_gr8_evb>; > + usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */ > + usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */ > + usb0_vbus_power-supply = <&usb_power_supply>; > + usb1_vbus-supply = <®_usb1_vbus>; > + status = "okay"; > +}; > -- > 2.9.2 > -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 7dd4a07c4784..8226b0a2e178 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -734,7 +734,8 @@ dtb-$(CONFIG_MACH_SUN5I) += \ sun5i-a13-olinuxino-micro.dtb \ sun5i-a13-q8-tablet.dtb \ sun5i-a13-utoo-p66.dtb \ - sun5i-r8-chip.dtb + sun5i-r8-chip.dtb \ + gr8-evb.dtb dtb-$(CONFIG_MACH_SUN6I) += \ sun6i-a31-app4-evb1.dtb \ sun6i-a31-colombus.dtb \ diff --git a/arch/arm/boot/dts/gr8-evb.dts b/arch/arm/boot/dts/gr8-evb.dts new file mode 100644 index 000000000000..e334d18d7bf0 --- /dev/null +++ b/arch/arm/boot/dts/gr8-evb.dts @@ -0,0 +1,378 @@ +/* + * Copyright 2016 Free Electrons + * Copyright 2016 NextThing Co + * + * Mylène Josserand <mylene.josserand@free-electrons.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; 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. + */ + +/dts-v1/; +#include "gr8.dtsi" +#include "sunxi-common-regulators.dtsi" + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + model = "NextThing GR8-EVB"; + compatible = "nextthing,gr8-evb", "nextthing,gr8"; + + aliases { + i2c0 = &i2c0; + i2c1 = &i2c1; + i2c2 = &i2c2; + serial0 = &uart1; + serial1 = &uart2; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 10000 0>; + enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>; + + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <8>; + }; + + panel { + compatible = "allwinner,sun4i-a10-sub-evb-5-lcd"; + enable-gpios = <&axp_gpio 0 GPIO_ACTIVE_HIGH>; + backlight = <&backlight>; + power-supply = <®_vcc3v0>; + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + panel_input: endpoint@0 { + reg = <0>; + remote-endpoint = <&tcon0_out_panel>; + }; + }; + }; +}; + +&be0 { + status = "okay"; +}; + +&codec { + status = "okay"; +}; + +&ehci0 { + status = "okay"; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins_a>; + status = "okay"; + + axp209: pmic@34 { + reg = <0x34>; + + /* + * The interrupt is routed through the "External Fast + * Interrupt Request" pin (ball G13 of the module) + * directly to the main interrupt controller, without + * any other controller interfering. + */ + interrupts = <0>; + }; +}; + +#include "axp209.dtsi" + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins_a>; + status = "okay"; + + pcf8563: rtc@51 { + compatible = "phg,pcf8563"; + reg = <0x51>; + }; + + wm8978: codec@1a { + #sound-dai-cells = <0>; + compatible = "wlf,wm8978"; + reg = <0x1a>; + }; +}; + +&i2c2 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c2_pins_a>; + status = "okay"; +}; + +&i2s0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2s0_pins_a>; + status = "okay"; +}; + +&ir0 { + pinctrl-names = "default"; + pinctrl-0 = <&ir0_rx_pins_a>; + status = "okay"; +}; + +&lradc { + vref-supply = <®_ldo2>; + status = "okay"; + + button@190 { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + channel = <0>; + voltage = <190000>; + }; + + button@390 { + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + channel = <0>; + voltage = <390000>; + }; + + button@600 { + label = "Menu"; + linux,code = <KEY_MENU>; + channel = <0>; + voltage = <600000>; + }; + + button@800 { + label = "Search"; + linux,code = <KEY_SEARCH>; + channel = <0>; + voltage = <800000>; + }; + + button@980 { + label = "Home"; + linux,code = <KEY_HOMEPAGE>; + channel = <0>; + voltage = <980000>; + }; + + button@1180 { + label = "Esc"; + linux,code = <KEY_ESC>; + channel = <0>; + voltage = <1180000>; + }; + + button@1400 { + label = "Enter"; + linux,code = <KEY_ENTER>; + channel = <0>; + voltage = <1400000>; + }; +}; + +&mmc0 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gr8_evb>; + vmmc-supply = <®_vcc3v3>; + bus-width = <4>; + cd-gpios = <&pio 6 0 GPIO_ACTIVE_HIGH>; /* PG0 */ + cd-inverted; + status = "okay"; +}; + +&nfc { + pinctrl-names = "default"; + pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>; + + /* MLC Support sucks for now */ + status = "disabled"; +}; + +&ohci0 { + status = "okay"; +}; + +&otg_sram { + status = "okay"; +}; + +&pio { + mmc0_cd_pin_gr8_evb: mmc0-cd-pin@0 { + allwinner,pins = "PG0"; + allwinner,function = "gpio_in"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + + usb0_id_pin_gr8_evb: usb0-id-pin@0 { + allwinner,pins = "PG2"; + allwinner,function = "gpio_in"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + + usb0_vbus_det_pin_gr8_evb: usb0-vbus-det-pin@0 { + allwinner,pins = "PG1"; + allwinner,function = "gpio_in"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + + usb1_vbus_pin_gr8_evb: usb1-vbus-pin@0 { + allwinner,pins = "PG13"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; +}; + +&pwm { + pinctrl-names = "default"; + pinctrl-0 = <&pwm0_pins_a>; + status = "okay"; +}; + +®_dcdc2 { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-cpu"; + regulator-always-on; +}; + +®_dcdc3 { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1300000>; + regulator-name = "vdd-sys"; + regulator-always-on; +}; + +®_ldo1 { + regulator-name = "vdd-rtc"; +}; + +®_ldo2 { + regulator-min-microvolt = <2700000>; + regulator-max-microvolt = <3300000>; + regulator-name = "avcc"; + regulator-always-on; +}; + +®_usb1_vbus { + pinctrl-0 = <&usb1_vbus_pin_gr8_evb>; + gpio = <&pio 6 13 GPIO_ACTIVE_HIGH>; + status = "okay"; +}; + +&rtp { + allwinner,ts-attached; +}; + +&spdif { + pinctrl-names = "default"; + pinctrl-0 = <&spdif_tx_pins_a>; + status = "okay"; +}; + +&tcon0 { + pinctrl-names = "default"; + pinctrl-0 = <&lcd_rgb666_pins>; + status = "okay"; +}; + +&tcon0_out { + #address-cells = <1>; + #size-cells = <0>; + + tcon0_out_panel: endpoint@0 { + reg = <0>; + remote-endpoint = <&panel_input>; + }; +}; + +&tve0 { + status = "okay"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins_a>, <&uart1_cts_rts_pins_a>; + status = "okay"; +}; + +&usb_otg { + /* + * The GR8-EVB has a somewhat interesting design. There's a + * pin supposed to control VBUS, an ID pin, a VBUS detect pin, + * so everything should work just fine. + * + * Except that the pin supposed to control VBUS is not + * connected to any controllable output, neither to the SoC + * through a GPIO or to the PMIC, and it is pulled down, + * meaning that we will never be able to enable VBUS on this + * board. + */ + dr_mode = "peripheral"; + status = "okay"; +}; + +&usb_power_supply { + status = "okay"; +}; + +&usbphy { + pinctrl-names = "default"; + pinctrl-0 = <&usb0_id_pin_gr8_evb>, <&usb0_vbus_det_pin_gr8_evb>; + usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */ + usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */ + usb0_vbus_power-supply = <&usb_power_supply>; + usb1_vbus-supply = <®_usb1_vbus>; + status = "okay"; +};