linux-kernel - Re: [v2 2/2] fpga: Add support for Lattice iCE40 FPGAs

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Message-ID: <0cf56793-f0e4-5584-946e-6bb0fbc6a454@airwebreathe.org.uk>
Date:   Tue, 25 Oct 2016 10:31:49 -0600
From:   Joel Holdsworth <joel@...webreathe.org.uk>
To:     atull <atull@...nsource.altera.com>
Cc:     ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
        mark.rutland@....com, moritz.fischer@...us.com, pawel.moll@....com,
        robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [v2 2/2] fpga: Add support for Lattice iCE40 FPGAs


Hi Alan

 > Yes!  I have submitted patches for doing exactly that.  About to
 > submit v21.  Here's patch 1 of v20:
 >
 > https://patchwork.kernel.org/patch/9379859/

That's really cool. I hope it gets accepted.




 >> and/or if there were any patches for loading
 >> firmware from userspace - something like this: "cat firmware.bin >
 >> /dev/fpga0"?
 >
 > We discussed doing a char driver interface.  That's where all this
 > started.  It met with lots of resistance.
 >

Yeah I saw some slides about it. Personally I don't care too much about 
the character device thing. It could be something in sysfs - anything 
that allows the user to inject firmware firmware from user-space.


Joel