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SubjectRE: [PATCH 2/3] Docs: dt: fsl-mc update binding to include definition of ranges
Date
> -----Original Message-----
> From: Stuart Yoder [mailto:stuart.yoder@freescale.com]
> Sent: Friday, September 25, 2015 4:08 PM
> To: robh+dt@kernel.org; mark.rutland@arm.com
> Cc: devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; Rivera
> Jose-B46482; Sharma Bhupesh-B45370; katz Itai-RM05202; Yoder Stuart-
> B08248
> Subject: [PATCH 2/3] Docs: dt: fsl-mc update binding to include
> definition of ranges
>
> Define a ranges property to specify the mapping between the MC address
> space and the system address space.
>
> Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> ---
> .../devicetree/bindings/misc/fsl,qoriq-mc.txt | 30
> +++++++++++++++++++++-
> 1 file changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
> b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
> index 6aac955..848975f 100644
> --- a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
> +++ b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
> @@ -35,6 +35,26 @@ Required properties:
> Definition: Must be present and point to the MSI controller node
> handling message interrupts for the MC.
>
> + - ranges
> + Value type: <prop-encoded-array>
> + Definition: A standard property. Defines the mapping between
> the child
> + MC address space and the parent system address
> space.
> +
> + The MC address space is defined by 3 components:
> + <region type> <offset hi> <offset lo>
> +
> + Valid values for region type are
> + 0x0 - MC portals
> + 0x1 - QBMAN portals
> +
> + - #address-cells
> + Value type: <u32>
> + Definition: Must be 3. (see definition in 'ranges' property)
> +
> + - #size-cells
> + Value type: <u32>
> + Definition: Must be 1.
> +
> Example:
>
> fsl_mc: fsl-mc@80c000000 {
> @@ -42,5 +62,13 @@ Example:
> reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal
> base */
> <0x00000000 0x08340000 0 0x40000>; /* MC control
> reg */
> msi-parent = <&its>;
> - };
> + #address-cells = <3>;
> + #size-cells = <1>;
>
> + /*
> + * Region type 0x0 - MC portals
> + * Region type 0x1 - QBMAN portals
> + */
> + ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000
> + 0x1 0x0 0x0 0x8 0x18000000 0x8000000>;
> + };
> --
> 2.3.3

Acked-by: J. German Rivera <German.Rivera@freescale.com>



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