linux-kernel - Re: [PATCH] Add device tree file for the armadeus apf27

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Date:	Mon, 29 Oct 2012 22:10:15 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Philippe Reynes <tremyfr@...oo.fr>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	julien.boibessot@...adeus.com, eric.jarrige@...adeus.org
Subject: Re: [PATCH] Add device tree file for the armadeus apf27

On Fri, Oct 26, 2012 at 06:29:40PM +0200, Philippe Reynes wrote:
> Signed-off-by: Philippe Reynes <tremyfr@...oo.fr>
> Signed-off-by: Eric Jarrige <eric.jarrige@...adeus.org>
> ---
>  arch/arm/boot/dts/imx27-apf27.dts |   96 +++++++++++++++++++++++++++++++++++++
>  1 files changed, 96 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/boot/dts/imx27-apf27.dts
> 
> diff --git a/arch/arm/boot/dts/imx27-apf27.dts b/arch/arm/boot/dts/imx27-apf27.dts
> new file mode 100644
> index 0000000..b7d11e0
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx27-apf27.dts
> @@ -0,0 +1,96 @@
> +/*
> + * Copyright 2012 Philippe Reynes <tremyfr@...oo.fr>
> + * Copyright 2012 Armadeus Systems <support@...adeus.com>
> + *
> + * Based on code which is: Copyright 2012 Sascha Hauer, Pengutronix
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +/dts-v1/;
> +/include/ "imx27.dtsi"
> +
> +/ {
> +	model = "Armadeus apf27";
> +	compatible = "armadeus,imx27-apf27", "fsl,imx27";
> +
> +	memory {
> +		reg = <0xa0000000 0x04000000>;
> +	};
> +
> +	clocks {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		osc26m {
> +			compatible = "fsl,imx-osc26m", "fixed-clock";
> +			clock-frequency = <33554432>;

Is this really correct? The Datasheet specificies 26MHz, some boards
have 27Mhz, but 33?

> +		};
> +	};
> +
> +	soc {
> +		aipi@...00000 {
> +			wdog@...02000 {
> +				status = "okay";
> +			};

This node is not necessary. The watchdog is enabled already in the dtsi
file.

Sascha


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