Re: [PATCH v4 1/1] staging: fpgaboot: Xilinx FPGA firmware download driver

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On Mon, Jan 20, 2014 at 10:51 AM, Hartley Sweeten
<HartleyS@xxxxxxxxxxxxxxxxxxx> wrote:

> I have not looked at this driver but...
>
> Couldn't this be done from user space using urjtag?
>
> http://urjtag.org/
>

Thank you for letting me know urjtag.
This can be useful to replace existing jtag dongles.

However, the use case for my fpgaboot driver and urjtag are different.

The fpgaboot driver downloads Xilinx FPGA firmware during run time on
the target without any h/w device support (i.e jtag dongle). This can
be used in development as well as deployment scenario. And it does
_one_ thing very well, this can download fpga firmware (10s of MByte)
in less then half a seconds within our system.

What I see urjtag does exactly what jtag devices are doing, which
means urjtag normally runs on development host (not on target), and
need a jatag dongle. It supports many different types of dongles and
devices, which itself is awesome in many ways, and could be cheaper.

Regards,

ISS
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