[PATCH v3] powerpc/fsl: Added binding for Freescale CoreNet coherency fabric (CCF)
Scott Wood
scottwood at freescale.com
Tue May 6 05:31:02 EST 2014
On Mon, 2014-05-05 at 18:58 +0300, Diana Craciun wrote:
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
> index 922c30a..09dbc5f 100644
> --- a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
> @@ -20,3 +20,11 @@ PROPERTIES
> a property named fsl,eref-[CAT], where [CAT] is the abbreviated category
> name with all uppercase letters converted to lowercase, indicates that
> the category is supported by the implementation.
> +
> + - fsl,portid-mapping : <u32>
> + The Coherency Subdomain ID Port Mapping Registers and Snoop ID Port Mapping
> + registers which are part of the CoreNet Coherency fabric (CCF) provide a
> + CoreNet Coherency Subdomain ID/CoreNet Snoop ID to cpu mapping functions.
> + Certain bits from these registers should be set if the coresponding CPU
> + should be snooped. This property defines a bitmask which selects the bit that
> + should be set if this cpu should be snooped.
Please follow existing formatting in this file.
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt b/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
> index 1f5e329..827c637 100644
> --- a/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
> @@ -26,6 +26,13 @@ Required properties:
> A standard property.
> - #size-cells : <u32>
> A standard property.
> +- fsl,portid-mapping : <u32>
> + The Coherency Subdomain ID Port Mapping Registers and Snoop ID Port Mapping
> + registers which are part of the CoreNet Coherency fabric (CCF) provide a
> + CoreNet Coherency Subdomain ID/CoreNet Snoop ID to pamu mapping functions.
> + Certain bits from these registers should be set if PAMUs should be snooped.
> + This property defines a bitmask which selects the bits that should be set
> + if PAMUs should be snooped.
This can't be a required property since existing trees don't have it --
in addition to allowing for the possibility of a PAMU where the snoop ID
is not known or where the snoop domain mechanism does not exist.
-Scott
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