[PATCH v3] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

Icenowy Zheng
2017-12-24T05:40:29Z

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 <icenowy@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 <icenowy@aosc.io>
+ *
+ * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
+ * Copyright (C) 2016 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.
+ */
+
+/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 = <&reg_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.
+ */
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ status = "okay";
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_a>;
+ vmmc-supply = <&reg_vcc3v3>;
+ vqmmc-supply = <&reg_vcc3v3>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+
+ brcmf: wifi at 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