On Sun, Dec 24, 2017 at 01:40:29PM +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 <icen...@aosc.io>
> ---
> Changes in v3:
> - Add comments about Vbus problem in &usbphy node.
>
> Changes in v2:
> - Use high active SD card detect on the production batch.
>
> arch/arm/boot/dts/Makefile | 1 +
> .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 162
> +++++++++++++++++++++
> 2 files changed, 163 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 0bb8db33704a..937a8768671f 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -962,6 +962,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> sun8i-a83t-cubietruck-plus.dtb \
> sun8i-a83t-tbs-a711.dtb \
> sun8i-h2-plus-orangepi-r1.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..5bc182ddc5f7
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> @@ -0,0 +1,162 @@
> +/*
> + * Copyright (C) 2017 Icenowy Zheng <icen...@aosc.io>
> + *
> + * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
> + * Copyright (C) 2016 Chen-Yu Tsai <w...@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.
> + */
> +
> +/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";
> +
> + 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";
> +
> + sw4 {
> + 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";
> + 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>;
> + /*
> + * On the production batch of this board the card detect GPIO is
> + * high active (card inserted), although on the early samples it's
> + * low active.
> + */
Is there a way to differentiate between early samples and production batches?
Board markings, etc?
> + cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
> + 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 */
> + /*
> + * There're two micro-USB connectors, one is power-only and another is
> + * OTG. The Vbus of these two connectors are connected together, so
> + * the external USB device will be powered just by the power input
> + * from the power-only USB port.
> + */
> + status = "okay";
> +};
> --
> 2.14.2
>
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