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Date:	Wed, 7 Oct 2015 09:24:07 +1100
From:	Julian Calaby <julian.calaby@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	"Mailing List, Arm" <linux-arm-kernel@...ts.infradead.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Hans de Goede <hdegoede@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] [PATCH v2 5/5] ARM: sun5i: Add C.H.I.P DTS

 Maxime,

On Wed, Oct 7, 2015 at 3:17 AM, Maxime Ripard
<maxime.ripard@...e-electrons.com> wrote:
> Hi,
>
> On Tue, Oct 06, 2015 at 12:15:38PM +1100, Julian Calaby wrote:
>> Hi Maxime,
>>
>> On Tue, Oct 6, 2015 at 1:23 AM, Maxime Ripard
>> <maxime.ripard@...e-electrons.com> wrote:
>> > The C.H.I.P. is a small SBC with an Allwinner R8, 8GB of NAND, 512MB of
>> > RAM, USB host and OTG, a wifi / bluetooth combo chip, an audio/video jack
>> > and two connectors to plug additional boards on top of it.
>>
>> Sorry for the late review, but a couple of minor things stuck out at me.
>
> No problem :)
>
>> > Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
>> > Reviewed-by: Hans de Goede <hdegoede@...hat.com>
>> > ---
>> >  arch/arm/boot/dts/Makefile          |   3 +-
>> >  arch/arm/boot/dts/sun5i-r8-chip.dts | 224 ++++++++++++++++++++++++++++++++++++
>> >  2 files changed, 226 insertions(+), 1 deletion(-)
>> >  create mode 100644 arch/arm/boot/dts/sun5i-r8-chip.dts
>> >
>> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>> > index c7adaa85ef3f..2cf7e593270a 100644
>> > --- a/arch/arm/boot/dts/Makefile
>> > +++ b/arch/arm/boot/dts/Makefile
>> > @@ -600,7 +600,8 @@ dtb-$(CONFIG_MACH_SUN5I) += \
>> >         sun5i-a13-olinuxino.dtb \
>> >         sun5i-a13-olinuxino-micro.dtb \
>> >         sun5i-a13-q8-tablet.dtb \
>> > -       sun5i-a13-utoo-p66.dtb
>> > +       sun5i-a13-utoo-p66.dtb \
>> > +       sun5i-r8-chip.dtb
>> >  dtb-$(CONFIG_MACH_SUN6I) += \
>> >         sun6i-a31-app4-evb1.dtb \
>> >         sun6i-a31-colombus.dtb \
>> > diff --git a/arch/arm/boot/dts/sun5i-r8-chip.dts b/arch/arm/boot/dts/sun5i-r8-chip.dts
>> > new file mode 100644
>> > index 000000000000..08ff70601c79
>> > --- /dev/null
>> > +++ b/arch/arm/boot/dts/sun5i-r8-chip.dts
>> > @@ -0,1 +1,224 @@
>> > +/*
>> > + * Copyright 2015 Free Electrons
>> > + * Copyright 2015 NextThing Co
>> > + *
>> > + * Maxime Ripard <maxime.ripard@...e-electrons.com>
>> > + *
>> > + * 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 "sun5i-a13.dtsi"
>>
>> Am I missing something or should this include "sun5i-r8.dtsi" instead?
>
> Indeed.
>
>> > +#include "sunxi-common-regulators.dtsi"
>> > +
>> > +#include <dt-bindings/gpio/gpio.h>
>> > +#include <dt-bindings/interrupt-controller/irq.h>
>> > +
>> > +/ {
>> > +       model = "NextThing C.H.I.P.";
>> > +       compatible = "nextthing,chip", "allwinner,sun5i-r8";
>> > +
>> > +       aliases {
>> > +               i2c0 = &i2c0;
>> > +               i2c1 = &i2c1;
>> > +               i2c2 = &i2c2;
>> > +               serial0 = &uart1;
>> > +               serial1 = &uart3;
>> > +       };
>> > +
>> > +       chosen {
>> > +               stdout-path = "serial0:115200n8";
>>
>> Should the composite output be enabled here too?
>
> AFAIK, the stdout-path only supports a single output device, and I
> don't think it really is an issue since framebuffer console will
> attach to the framebuffer automatically.

I was referring to enabling it in chosen, not stdout-path, but I
couldn't remember if uboot does that for us or not.

Thanks,

-- 
Julian Calaby

Email: julian.calaby@...il.com
Profile: http://www.google.com/profiles/julian.calaby/
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