linux-kernel - Re: [PATCH 05/14] DEVICETREE: Add bindings for PIC32/MZDA platforms

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Date:	Sun, 22 Nov 2015 15:35:05 -0600
From:	Rob Herring <robh@...nel.org>
To:	Joshua Henderson <joshua.henderson@...rochip.com>
Cc:	linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH 05/14] DEVICETREE: Add bindings for PIC32/MZDA platforms

On Fri, Nov 20, 2015 at 05:17:17PM -0700, Joshua Henderson wrote:
> This adds support for the Microchip PIC32 platform along with the
> specific variant PIC32MZDA on a PIC32MZDA Starter Kit.
> 
> Signed-off-by: Joshua Henderson <joshua.henderson@...rochip.com>

Acked-by: Rob Herring <robh@...nel.org>


> ---
>  .../bindings/mips/pic32/microchip,pic32mzda.txt    |   33 ++++++++++++++++++++
>  1 file changed, 33 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mips/pic32/microchip,pic32mzda.txt
> 
> diff --git a/Documentation/devicetree/bindings/mips/pic32/microchip,pic32mzda.txt b/Documentation/devicetree/bindings/mips/pic32/microchip,pic32mzda.txt
> new file mode 100644
> index 0000000..bcf3e04
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mips/pic32/microchip,pic32mzda.txt
> @@ -0,0 +1,33 @@
> +* Microchip PIC32MZDA Platforms
> +
> +PIC32MZDA Starter Kit
> +Required root node properties:
> +    - compatible = "microchip,pic32mzda-sk", "microchip,pic32mzda"
> +
> +CPU nodes:
> +----------
> +A "cpus" node is required.  Required properties:
> + - #address-cells: Must be 1.
> + - #size-cells: Must be 0.
> +A CPU sub-node is also required.  Required properties:
> + - device_type: Must be "cpu".
> + - compatible: Must be "mti,mips14KEc".
> +Example:
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu0: cpu@0 {
> +			device_type = "cpu";
> +			compatible = "mti,mips14KEc";
> +		};
> +	};
> +
> +Boot protocol

This probably belongs somewhere else if it is common.

> +--------------
> +In accordance with the MIPS UHI specification[1], the bootloader must pass the
> +following arguments to the kernel:
> + - $a0: -2.
> + - $a1: KSEG0 address of the flattened device-tree blob.
> +
> +[1] http://prplfoundation.org/wiki/MIPS_documentation
> -- 
> 1.7.9.5
> 
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