Re: [RFC PATCH] fpga: Introduce new fpga subsystem

Michal Simek
2013-09-23T13:02:27Z

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On 09/19/2013 05:18 PM, Yves Vandervennet wrote:
> On Thu, Sep 19, 2013 at 5:55 AM, Michal Simek <monstr@monstr.eu> wrote:
>
>>> Is there some way a per-device userspace helper can be added that can
>>> handle adding the headers? Such that different fpga types get different
>>> helpers?
>>
>> What do you exactly mean by that? Any example what do you want to achieve?
> Bit streams may not be in raw format, so using 'cat' is not possible.
> Xilinx and Altera have their own bit stream "richer" format, that need
> to be processed before they are presented to the driver(s). So, a
> hotplug helper per manufacturer/FPGA is required. Assuming 'cat' will
> be used is too limiting.
> Does it make sense to you?

Definitely this make sense to me but the point is if this should be
the part of this patch or just separate altera.c/xilinx.c file which
is able to detect and check this format.
I am not saying that it can't be there but currently without
any code I can't see any reason why there should be hook for code
which doesn't exist.

M

--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
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Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
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