[PATCH] [v2] powerpc/fsl: add device tree binding for QE firmware
Grant Likely
grant.likely at secretlab.ca
Sat Mar 27 06:45:38 EST 2010
On Fri, Mar 26, 2010 at 1:35 PM, Timur Tabi <timur at freescale.com> wrote:
> Define a binding for embedding a QE firmware blob into the device tree. Also
> define a new property for the QE node that links to a firmware node.
>
> Signed-off-by: Timur Tabi <timur at freescale.com>
> ---
> .../powerpc/dts-bindings/fsl/cpm_qe/qe.txt | 54 ++++++++++++++++++++
> 1 files changed, 54 insertions(+), 0 deletions(-)
>
> diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt
> index 6e37be1..865a2ef 100644
> --- a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt
> +++ b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt
> @@ -21,6 +21,15 @@ Required properties:
> - fsl,qe-num-snums: define how many serial number(SNUM) the QE can use for the
> threads.
>
> +Optional properties:
> +- fsl,firmware-phandle:
> + Usage: required only if there is no fsl,qe-firmware child node
> + Value type: <phandle>
> + Definition: Points to a firmware node (see "QE Firmware Node" below)
> + that contains the firmware that should be uploaded for this QE.
> + The compatible property for the firmware node should say,
> + "fsl,qe-firmware".
> +
> Recommended properties
> - brg-frequency : the internal clock source frequency for baud-rate
> generators in Hz.
> @@ -59,3 +68,48 @@ Example:
> reg = <0 c000>;
> };
> };
> +
> +* QE Firmware Node
> +
> +This node defines a firmware binary that is embedded in the device tree, for
> +the purpose of passing the firmware from bootloader to the kernel, or from
> +the hypervisor to the guest.
> +
> +The firmware node itself contains the firmware binary contents, a compatible
> +property, and any firmware-specific properties. The node itself can be located
> +anywhere, but should probably be placed inside a QE node.
The node must be a child of a QE node. A QE node can reference the
firmware from another QE node by using the fsl,firmware-phandle
property.
With that change; Acked-by: Grant Likely <grant.likely at secretlab.ca>
g.
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
More information about the Linuxppc-dev
mailing list