Re: [PATCH 2/3] ARM: dts: sun8i: Add board dts file for Banana Pi M2 Ultra

From: Maxime Ripard
Date: Tue Aug 22 2017 - 16:11:01 EST

Hi,

On Tue, Aug 22, 2017 at 02:17:41PM +0800, Icenowy Zheng wrote:
> From: Chen-Yu Tsai <wens@xxxxxxxx>
>
> The Banana Pi M2 Ultra is an SBC based on the Allwinner R40 SoC. The
> form factor and position of various connectors, leds and buttons is
> similar to the Banana Pi M1+, Banana Pi M3, and is exactly the same
> as the latest Banana Pi M64.
>
> It features:
>
> - X-Powers AXP221s PMIC connected to i2c0
> - 2 GB DDR3 DRAM
> - 8 GB eMMC
> - micro SD card slot
> - DC power jack
> - HDMI output
> - MIPI DSI connector
> - 2x USB 2.0 hosts
> - 1x USB 2.0 OTG
> - gigabit ethernet with Realtek RTL8211E transceiver
> - WiFi/Bluetooth with AP6212 chip, with external antenna connector
> - SATA and power connectors for native SATA support
> - camera sensor connector
> - consumer IR receiver
> - audio out headphone jack
> - onboard microphone
> - red, green, and blue LEDs
> - debug UART pins
> - Li-Po battery connector
> - Raspberry Pi B+ compatible GPIO header
> - power, reset, and boot control buttons
>
> This patch adds a dts file that enables UART, MMC and PMIC support.
>
> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
> ---
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 181 ++++++++++++++++++++++
> 2 files changed, 182 insertions(+)
> create mode 100644 arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 570e107bf702..e0b1ed3e2e24 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -927,6 +927,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> sun8i-h3-orangepi-plus2e.dtb \
> sun8i-r16-bananapi-m2m.dtb \
> sun8i-r16-parrot.dtb \
> + sun8i-r40-bananapi-m2-ultra.dtb \
> sun8i-v3s-licheepi-zero.dtb \
> sun8i-v3s-licheepi-zero-dock.dtb
> dtb-$(CONFIG_MACH_SUN9I) += \
> diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> new file mode 100644
> index 000000000000..daf55556036f
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> @@ -0,0 +1,181 @@
> +/*
> + * Copyright (C) 2017 Chen-Yu Tsai <wens@xxxxxxxx>
> + * Copyright (C) 2017 Icenowy Zheng <icenowy@xxxxxxx>
> + *
> + * 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-r40.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +/ {
> + model = "Banana Pi BPI-M2-Ultra";
> + compatible = "sinovoip,bpi-m2-ultra", "allwinner,sun8i-r40";
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };

Missing newline

> + leds {
> + compatible = "gpio-leds";
> +
> + pwr-led {
> + label = "bananapi:red:pwr";
> + gpios = <&pio 7 20 GPIO_ACTIVE_HIGH>;
> + default-state = "on";
> + };
> +
> + user-led-green {
> + label = "bananapi:green:user";
> + gpios = <&pio 7 21 GPIO_ACTIVE_HIGH>;
> + };
> +
> + user-led-blue {
> + label = "bananapi:blue:user";
> + gpios = <&pio 7 22 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 WIFI_EN */
> + };
> +};
> +
> +&i2c0 {
> + status = "okay";
> +
> + axp22x: pmic@34 {
> + compatible = "x-powers,axp221";
> + reg = <0x34>;
> + interrupt-parent = <&nmi_intc>;
> + interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> + };
> +};
> +
> +#include "axp22x.dtsi"
> +
> +&reg_aldo3 {
> + regulator-always-on;
> + regulator-min-microvolt = <2700000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "avcc";
> +};
> +
> +&reg_dcdc1 {
> + regulator-always-on;
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-name = "vcc-3v0";
> +};
> +
> +&reg_dcdc2 {
> + regulator-always-on;
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> + regulator-always-on;
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-name = "vdd-sys";
> +};
> +
> +&reg_dcdc5 {
> + regulator-always-on;
> + regulator-min-microvolt = <1500000>;
> + regulator-max-microvolt = <1500000>;
> + regulator-name = "vcc-dram";
> +};
> +
> +&reg_dldo1 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-wifi-io";
> +};
> +
> +&reg_dldo2 {
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-wifi";
> +};
> +
> +&reg_vcc5v0 {
> + gpio = <&pio 7 23 GPIO_ACTIVE_HIGH>; /* PH23 */
> + enable-active-high;
> +};

That regulator is unused, and the GPIO is marked to be unused on the schematics.

> +&mmc0 {
> + vmmc-supply = <&reg_dcdc1>;
> + bus-width = <4>;
> + cd-gpios = <&pio 7 13 GPIO_ACTIVE_HIGH>; /* PH13 */
> + cd-inverted;
> + status = "okay";
> +};
> +
> +&mmc1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc1_pg_pins>;
> + vmmc-supply = <&reg_dldo2>;
> + vqmmc-supply = <&reg_dldo1>;
> + mmc-pwrseq = <&wifi_pwrseq>;
> + bus-width = <4>;
> + non-removable;
> + status = "okay";
> +};
> +
> +&mmc2 {
> + vmmc-supply = <&reg_dcdc1>;
> + vqmmc-supply = <&reg_dcdc1>;

You don't need vqmmc here.

Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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