Hi Jun, On Fri, Jan 05, 2018 at 03:37:01PM +0800, Jun Nie wrote: > Banana-Pi Zero is designed for IOT development > using the Allwinner H2+ SOC. > > Key features > - Allwinner H2+, Quad-core Cortex-A7 > - 512MB DRAM > - microSD slot > - Serial Debug Port > - Combo WiFi/BT > - HDMI > > Signed-off-by: Jun Nie <jun....@linaro.org> > --- > arch/arm/dts/Makefile | 1 + > arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 113 > ++++++++++++++++++++++++ > configs/bananapi_zero_defconfig | 17 ++++ > 3 files changed, 131 insertions(+) > create mode 100644 arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts > create mode 100644 configs/bananapi_zero_defconfig > > diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile > index a895c70..80eec7e 100644 > --- a/arch/arm/dts/Makefile > +++ b/arch/arm/dts/Makefile > @@ -327,6 +327,7 @@ dtb-$(CONFIG_MACH_SUN8I_A83T) += \ > sun8i-a83t-cubietruck-plus.dtb \ > sun8i-a83t-tbs-a711.dts > dtb-$(CONFIG_MACH_SUN8I_H3) += \ > + sun8i-h2-plus-bananapi-m2-zero.dtb \ > sun8i-h2-plus-orangepi-zero.dtb \ > sun8i-h3-bananapi-m2-plus.dtb \ > sun8i-h3-orangepi-2.dtb \ > diff --git a/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts > b/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts > new file mode 100644 > index 0000000..4d96c16 > --- /dev/null > +++ b/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts > @@ -0,0 +1,113 @@ > +/* > + * Copyright (C) 2017 Jun Nie <jun....@linaro.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>
Where is that DT coming from? Usually, we'll just merge a DT merged in Linux. > +/ { > + model = "Banana Pi BPI-M2-Zero"; > + compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus"; > + > + aliases { > + serial0 = &uart0; > + }; > + > + 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>; > + }; > + }; > +}; > + > +&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. > + */ > + broken-cd; > + status = "okay"; > +}; > + > +&uart0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&uart0_pins_a>; > + 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 */ Then it cannot really do OTG, but rather only peripheral (or host, if the power is provided by the board). > + status = "okay"; > +}; > diff --git a/configs/bananapi_zero_defconfig b/configs/bananapi_zero_defconfig > new file mode 100644 > index 0000000..9c78b21 > --- /dev/null > +++ b/configs/bananapi_zero_defconfig > @@ -0,0 +1,17 @@ > +CONFIG_ARM=y > +CONFIG_ARCH_SUNXI=y > +CONFIG_MACH_SUN8I_H3=y > +CONFIG_DRAM_CLK=408 > +CONFIG_DRAM_ZQ=3881979 > +CONFIG_DRAM_ODT_EN=y > +CONFIG_DEFAULT_DEVICE_TREE="sun8i-h2-plus-bananapi-m2-zero" > +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set > +CONFIG_SPL=y > +# CONFIG_CMD_FLASH is not set > +# CONFIG_CMD_FPGA is not set > +CONFIG_CMD_USB_MASS_STORAGE=y This shouldn't be enabled in the defconfig. The rest of the serie looks good, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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