On Wed, 05 Nov 2014, Boris Brezillon wrote:
> The Matrix registers are provided to configure internal bus behavior on
> at91 SoCs.
> Some registers might be access by several drivers (e.g. to configure
> external memory bus timings), hence we declare this register set as a
> syscon device.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/mfd/atmel-matrix.txt | 24 ++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/atmel-matrix.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/atmel-matrix.txt b/Documentation/devicetree/bindings/mfd/atmel-matrix.txt
> new file mode 100644
> index 0000000..405cac9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/atmel-matrix.txt
> @@ -0,0 +1,24 @@
> +* Device tree bindings for Atmel Bus Matrix
> +
> +The Bus Matrix registers are used to configure Atmel SoCs internal bus
> +behavior (master/slave priorities, undefined burst length type, ...)
> +
> +Required properties:
> +- compatible: should be one of the following
> + "atmel,at91sam9260-matrix", "syscon"
> + "atmel,at91sam9261-matrix", "syscon"
> + "atmel,at91sam9263-matrix", "syscon"
> + "atmel,at91sam9263-matrix", "syscon"
> + "atmel,at91sam9g45-matrix", "syscon"
> + "atmel,at91sam9n12-matrix", "syscon"
> + "atmel,at91sam9x5-matrix", "syscon"
> + "atmel,sama5d3-matrix", "syscon"
> +- reg: contains offset/length value of the Bus Matrix
> + memory region.
Same comments as before:
Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>
> +Example:
> +
> +matrix: matrix@ffffec00 {
> + compatible = "atmel,sama5d3-matrix", "syscon";
> + reg = <0xffffec00 0x200>;
> +};
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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