linux-kernel - Re: [PATCH v2] N900: add device tree

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Message-ID: <20130801234355.GA15611@amd.pavel.ucw.cz>
Date:	Fri, 2 Aug 2013 01:43:56 +0200
From:	Pavel Machek <pavel@....cz>
To:	Aaro Koskinen <aaro.koskinen@....fi>
Cc:	Tony Lindgren <tony@...mide.com>, b-cousson@...com,
	pali.rohar@...il.com, kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH v2] N900: add device tree

On Sun 2013-07-28 15:44:09, Pavel Machek wrote:
> On Mon 2013-07-15 01:28:19, Aaro Koskinen wrote:
> > Hi,
> > 
> > On Sat, Jul 13, 2013 at 02:17:09PM +0200, Pavel Machek wrote:
> > > 
> > > This adds device tree with neccessary support to boot with functional
> > > video (on both emulator and real N900 device).
> > > 
> > > Signed-off-by: Pavel Machek <pavel@....cz>
> > 
> > You can also add:
> > 
> > Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
> 
> Benoit, could you apply this? Tony said you are doing dts changes, and
> the patch seems to be ready.

Tony, Benoit was apparently abducted by aliens or something. Is there
chance you could take the patch?

Thanks,
									Pavel

> > > From v1: Aaro wants just GPLv2, so I did that. I re-enabled parts that
> > > can be enabled on 3.10, and tested it on that kernel.
> > > 
> > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > > index f0895c5..1950aed 100644
> > > --- a/arch/arm/boot/dts/Makefile
> > > +++ b/arch/arm/boot/dts/Makefile
> > > @@ -141,6 +141,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
> > >  	omap3-devkit8000.dtb \
> > >  	omap3-beagle-xm.dtb \
> > >  	omap3-evm.dtb \
> > > +	omap3-n900.dtb \
> > >  	omap3-tobi.dtb \
> > >  	omap3-igep0020.dtb \
> > >  	omap3-igep0030.dtb \
> > > diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
> > > new file mode 100644
> > > index 0000000..fb461bf
> > > --- /dev/null
> > > +++ b/arch/arm/boot/dts/omap3-n900.dts
> > > @@ -0,0 +1,92 @@
> > > +/*
> > > + * Copyright (C) 2013 Pavel Machek <pavel@....cz>
> > > + * Copyright 2013 Aaro Koskinen <aaro.koskinen@....fi>
> > > + *
> > > + * This program is free software; you can redistribute it and/or modify
> > > + * it under the terms of the GNU General Public License version 2 as
> > > + * published by the Free Software Foundation.
> > > + */
> > > +
> > > +/dts-v1/;
> > > +
> > > +/include/ "omap34xx.dtsi"
> > > +
> > > +/ {
> > > +	model = "Nokia N900";
> > > +	compatible = "nokia,omap3-n900", "ti,omap3";
> > > +
> > > +	cpus {
> > > +		cpu@0 {
> > > +			cpu0-supply = <&vcc>;
> > > +		};
> > > +	};
> > > +
> > > +	memory {
> > > +		device_type = "memory";
> > > +		reg = <0x80000000 0x10000000>; /* 256 MB */
> > > +	};
> > > +
> > > +};
> > > +
> > > +&i2c1 {
> > > +	clock-frequency = <2200000>;
> > > +
> > > +	twl: twl@48 {
> > > +		reg = <0x48>;
> > > +		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
> > > +		interrupt-parent = <&intc>;
> > > +	};
> > > +};
> > > +
> > > +/include/ "twl4030.dtsi"
> > > +
> > > +&twl_gpio {
> > > +	ti,pullups	= <0x0>;
> > > +	ti,pulldowns	= <0x03ff3f>; /* BIT(0..5) | BIT(8..17) */
> > > +};
> > > +
> > > +&i2c2 {
> > > +	clock-frequency = <400000>;
> > > +};
> > > +
> > > +&i2c3 {
> > > +	clock-frequency = <100000>;
> > > +};
> > > +
> > > +&mmc1 {
> > > +	status = "disabled";
> > > +};
> > > +
> > > +&mmc2 {
> > > +	status = "disabled";
> > > +};
> > > +
> > > +&mmc3 {
> > > +	status = "disabled";
> > > +};
> > > +
> > > +&mcspi1 {
> > > +	// For some reason, touchscreen is neccessary for screen to work at 
> > > +	// all on real hw. It works well without it on emulator.
> > > +	//
> > > +	// Also... order in the device tree actually matters here.
> > > +	tsc2005@0 {
> > > +		compatible = "tsc2005";
> > > +		spi-max-frequency = <6000000>;
> > > +		reg = <0>;
> > > +	};
> > > +	mipid@2 {
> > > +		compatible = "acx565akm";
> > > +		spi-max-frequency = <6000000>;
> > > +		reg = <2>;
> > > +		// turbo_mode = 0,
> > > +		// cs_per_word = 0
> > > +	};
> > > +};
> > > +
> > > +&usb_otg_hs {
> > > +	interface-type = <0>;
> > > +	usb-phy = <&usb2_phy>;
> > > +	mode = <2>;
> > > +	power = <50>;
> > > +};
> > > 
> > > -- 
> > > (english) http://www.livejournal.com/~pavelmachek
> > > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
> 

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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