Hi Tyler, On Fri, Mar 06, 2015 at 03:35:04PM -0800, tyler.baker@xxxxxxxxxx wrote: > From: Tyler Baker <tyler.baker@xxxxxxxxxx> > > Add a Cubietech Cubieboard4 device tree and instruct make to build it. This > device tree has been derived from the sun9i-a80-optimus.dts as they are very > similar in design[1]. Notably, I2C3 is not used on Cubieboard4 and the LED/PWM > definitions will need to be updated in the future. > > [1] http://dl.cubieboard.org/model/cc-a80/Hardware/CC-A80-HW-V1.1.pdf > > Signed-off-by: Tyler Baker <tyler.baker@xxxxxxxxxx> > --- > arch/arm/boot/dts/Makefile | 3 +- > arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 100 ++++++++++++++++++++++++++++ > 2 files changed, 102 insertions(+), 1 deletion(-) > create mode 100644 arch/arm/boot/dts/sun9i-a80-cubieboard4.dts > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 4837044..0f67dab 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -553,7 +553,8 @@ dtb-$(CONFIG_MACH_SUN8I) += \ > sun8i-a23-ippo-q8h-v5.dtb \ > sun8i-a23-ippo-q8h-v1.2.dtb > dtb-$(CONFIG_MACH_SUN9I) += \ > - sun9i-a80-optimus.dtb > + sun9i-a80-optimus.dtb \ > + sun9i-a80-cubieboard4.dtb > dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \ > tegra20-harmony.dtb \ > tegra20-iris-512.dtb \ > diff --git a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts > new file mode 100644 > index 0000000..b239b39 > --- /dev/null > +++ b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts > @@ -0,0 +1,100 @@ > +/* > + * Copyright 2015 Tyler Baker > + * > + * Tyler Baker <tyler.baker@xxxxxxxxxx> > + * Chen-Yu Tsai <wens@xxxxxxxx> > + * > + * 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 "sun9i-a80.dtsi" > +#include "sunxi-common-regulators.dtsi" > + > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/pinctrl/sun4i-a10.h> > + > +/ { > + model = "Cubietech Cubieboard4"; > + compatible = "cubietech,a80-cubietruck", "allwinner,sun9i-a80"; > + > + aliases { > + serial0 = &uart0; > + }; > + > + chosen { > + bootargs = "earlyprintk console=ttyS0,115200"; It would be great not to use earlyprintk, just in case we have a kernel compiled with earlyprintk support, but for another SoC. And while we're at it, using stdout-path would allow use to get rid of the bootargs entirely. > + }; > + > +}; > + > +&pio { > + This new line is not needed. > + mmc0_cd_pin_cubieboard4: mmc0_cd_pin@0 { > + allwinner,pins = "PH18"; > + allwinner,function = "gpio_in"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; > + }; > +}; > + > +&mmc0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin_cubieboard4>; > + vmmc-supply = <®_vcc3v0>; > + bus-width = <4>; > + cd-gpios = <&pio 7 18 GPIO_ACTIVE_HIGH>; /* PH18 */ > + cd-inverted; > + status = "okay"; > +}; > + > +&mmc2 { > + pinctrl-names = "default"; > + pinctrl-0 = <&mmc2_8bit_pins>; > + vmmc-supply = <®_vcc3v0>; > + bus-width = <8>; > + non-removable; > + status = "okay"; > +}; > + > +&uart0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&uart0_pins_a>; > + status = "okay"; > +}; Looks good otherwise, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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