Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1160390

Re: [PATCH v2 3/5] dmaengine: mv_xor: add support for a38x command in descriptor mode

Show all headers | View raw

On Tue, May 26, 2015 at 03:07:34PM +0200, Maxime Ripard wrote:
> From: Lior Amsalem <alior@marvell.com>
> 
> The Marvell Armada 38x SoC introduce new features to the XOR engine,
> especially the fact that the engine mode (MEMCPY/XOR/PQ/etc) can be part of
> the descriptor and not set through the controller registers.
> 
> This new feature allows mixing of different commands (even PQ) on the same
> channel/chain without the need to stop the engine to reconfigure the engine
> mode.
> 
> Refactor the driver to be able to use that new feature on the Armada 38x,
> while keeping the old behaviour on the older SoCs.
> 
> Signed-off-by: Lior Amsalem <alior@marvell.com>
> Reviewed-by: Ofer Heifetz <oferh@marvell.com>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  Documentation/devicetree/bindings/dma/mv-xor.txt |  2 +-
>  drivers/dma/mv_xor.c                             | 82 ++++++++++++++++++++----
>  drivers/dma/mv_xor.h                             |  7 ++
>  3 files changed, 76 insertions(+), 15 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/dma/mv-xor.txt b/Documentation/devicetree/bindings/dma/mv-xor.txt
> index 7c6cb7fcecd2..cc29c35266e2 100644
> --- a/Documentation/devicetree/bindings/dma/mv-xor.txt
> +++ b/Documentation/devicetree/bindings/dma/mv-xor.txt
> @@ -1,7 +1,7 @@
>  * Marvell XOR engines
>  
>  Required properties:
> -- compatible: Should be "marvell,orion-xor"
> +- compatible: Should be "marvell,orion-xor" or "marvell,armada-380-xor"
marvell,armada-380-xor doesnt seem to exist in binding ?

-- 
~Vinod

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

Re: [PATCH v2 3/5] dmaengine: mv_xor: add support for a38x command  in descriptor mode Vinod Koul <vinod.koul@intel.com> - 2015-06-08 12:40 +0200

csiph-web