Re: [PATCH v2] powerpc/fsl: Added binding for Freescale CoreNet coherency fabric (CCF)

[Scott Wood <scottwood@freescale.com>]

On Fri, 2014-04-18 at 18:11 +0300, Diana Craciun wrote:
> From: Diana Craciun <Diana.Craciun@freescale.com>
> 
> The CoreNet coherency fabric is a fabric-oriented, conectivity
> infrastructure that enables the implementation of coherent, multicore
> systems. The CCF acts as a central interconnect for cores,
> platform-level caches, memory subsystem, peripheral devices and I/O host
> bridges in the system.
> 
> Signed-off-by: Diana Craciun <Diana.Craciun@freescale.com>
> ---
>  .../devicetree/bindings/powerpc/fsl/ccf.txt        | 36 ++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
> 
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt b/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
> new file mode 100644
> index 0000000..f0b7143
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
> @@ -0,0 +1,36 @@
> +Freescale CoreNet Coherency Fabric(CCF) Device Tree Binding
> +
> +DESCRIPTION
> +
> +The CoreNet coherency fabric is a fabric-oriented, connectivity infrastructure
> +that enables the implementation of coherent, multicore systems.
> +
> +Required properties:
> +
> +- compatible : <string>
> +		Must include "fsl,corenetX-cf", "fsl,corenet-cf" - CoreNet coherency 
> +		fabric version X

Specify "fsl,corenet1-cf" and "fsl,corenet2-cf" rather than
"fsl,corenetX-cf" (given there's nothing in a chip manual that you can
correlate with the value of X), and provide example chips for each.

Also specify that "fsl,corenet-cf" represents the registers that are
common between the two versions (not arbitrary "fsl,corenetX-cf" -- if
there's ever an "fsl,corenet3-cf" it may not be compatible with this),
and is retained for compatibility reasons.

-Scott