linux-kernel - Re: [PATCH] dma: xilinx: Make Xilinx VDMA support ARC

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Date:   Thu, 9 Mar 2017 08:37:18 +0100
From:   Mike Looijmans <mike.looijmans@...ic.nl>
To:     Ramiro Oliveira <Ramiro.Oliveira@...opsys.com>,
        <linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     Vinod Koul <vinod.koul@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        <CARLOS.PALMINHA@...opsys.com>
Subject: Re: [PATCH] dma: xilinx: Make Xilinx VDMA support ARC

On 06-03-17 13:27, Ramiro Oliveira wrote:
> Add option in Kconfig to use Xilinx VDMA in ARC processors.
>
> Signed-off-by: Ramiro Oliveira <roliveir@...opsys.com>
> ---
>  drivers/dma/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index 263495d0adbd..b6b6c0581ad7 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -546,7 +546,7 @@ config XGENE_DMA
>
>  config XILINX_DMA
>  	tristate "Xilinx AXI DMAS Engine"
> -	depends on (ARCH_ZYNQ || MICROBLAZE || ARM64)
> +	depends on (ARCH_ZYNQ || MICROBLAZE || ARM64|| ARC)

One can put a Xilinx FPGA on a PCIe card, instantiate a PCIe-AXI bridge and 
then use it on any platform that supports PCIe.

I've had to remove this line in order to be able to use the engine on an x86 
desktop.

How about plainly removing this "depends on" line and be done with it, instead 
of adding platforms one by one?


>  	select DMA_ENGINE
>  	help
>  	  Enable support for Xilinx AXI VDMA Soft IP.
>



Kind regards,

Mike Looijmans
System Expert

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