Hi, On Wed, Nov 01, 2017 at 05:38:14PM +0800, Icenowy Zheng wrote: > Banana Pi M2 Zero board is a H2+-based board by Sinovoip, with a form > factor and GPIO holes similar to Raspberry Pi Zero. > > It features: > - Allwinner H2+ SoC > - Single-chip (16-bit) 512MiB DDR3 DRAM > - Ampak AP6212 Wi-Fi/Bluetooth module > - MicroSD slot > - Two MicroUSB Type-B ports (one can only be used to power the board and > the other features OTG functionality) > - Two keys, a reset and a GPIO-connected key. > - HDMI Type-C (miniHDMI) connector connected to the HDMI part of H2+. > - CSI connector to connect the camera sensor provided by Sinovoip. > > Signed-off-by: Icenowy Zheng <[email protected]> > --- > arch/arm/boot/dts/Makefile | 1 + > .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 156 > +++++++++++++++++++++ > 2 files changed, 157 insertions(+) > create mode 100644 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 3a5b79fd8198..803dbdf03916 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -930,6 +930,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \ > sun8i-a83t-bananapi-m3.dtb \ > sun8i-a83t-cubietruck-plus.dtb \ > sun8i-a83t-tbs-a711.dtb \ > + sun8i-h2-plus-bananapi-m2-zero.dtb \ > sun8i-h2-plus-orangepi-zero.dtb \ > sun8i-h3-bananapi-m2-plus.dtb \ > sun8i-h3-beelink-x2.dtb \ > diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts > b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts > new file mode 100644 > index 000000000000..414258da4308 > --- /dev/null > +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts > @@ -0,0 +1,156 @@ > +/* > + * Copyright (C) 2017 Icenowy Zheng <[email protected]> > + * > + * Based on sun8i-h3-bananapi-m2-plus.dts, which is: > + * Copyright (C) 2016 Chen-Yu Tsai <[email protected]> > + * > + * 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 "sun8i-h3.dtsi" > +#include "sunxi-common-regulators.dtsi" > + > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/input/input.h> > + > +/ { > + model = "Banana Pi BPI-M2-Zero"; > + compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus"; > + > + aliases { > + serial0 = &uart0; > + serial1 = &uart1; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > + > + leds { > + compatible = "gpio-leds"; > + pinctrl-names = "default";
This property is useless
> +
> + pwr_led {
> + label = "bananapi-m2-zero:red:pwr";
> + gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
> + default-state = "on";
> + };
> + };
> +
> + gpio_keys {
> + compatible = "gpio-keys";
> + pinctrl-names = "default";
Same thing here.
> +
> + sw4 {
That node should be called power.
> + label = "power";
> + linux,code = <BTN_0>;
> + gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
> + };
> + };
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + pinctrl-names = "default";
That property is useless
> + reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
> + };
> +};
> +
> +&ehci0 {
> + status = "okay";
> +};
> +
> +&mmc0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc0_pins_a>;
> + vmmc-supply = <®_vcc3v3>;
> + bus-width = <4>;
> + /*
> + * In different revisions the board have different card detect
> + * configuration.
> + */
Which ones?
> + broken-cd;
> + status = "okay";
> +};
> +
> +&mmc1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc1_pins_a>;
> + vmmc-supply = <®_vcc3v3>;
> + vqmmc-supply = <®_vcc3v3>;
> + mmc-pwrseq = <&wifi_pwrseq>;
> + bus-width = <4>;
> + non-removable;
> + status = "okay";
> +
> + brcmf: wifi@1 {
> + reg = <1>;
> + compatible = "brcm,bcm4329-fmac";
> + interrupt-parent = <&pio>;
> + interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
> + interrupt-names = "host-wake";
> + };
> +};
> +
> +&ohci0 {
> + status = "okay";
> +};
> +
> +&uart0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&uart0_pins_a>;
> + status = "okay";
> +};
> +
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
> + status = "okay";
> +};
> +
> +&usb_otg {
> + dr_mode = "otg";
> + status = "okay";
> +};
> +
> +&usbphy {
> + usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
> + /* USB OTG VBUS is directly connected to 5V without any regulators */
So it cannot operate in OTG, but it's host only?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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