linux-kernel - Re: [PATCH 0/3] Yet another stab at a fpga framework

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Message-ID: <20140907185700.GA26553@amd>
Date:	Sun, 7 Sep 2014 20:57:00 +0200
From:	Pavel Machek <pavel@...x.de>
To:	atull@...nsource.altera.com
Cc:	gregkh@...uxfoundation.org, jgunthorpe@...idianresearch.com,
	hpa@...or.com, monstr@...str.eu, michal.simek@...inx.com,
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Subject: Re: [PATCH 0/3] Yet another stab at a fpga framework

Hi!

> [resend with fixed email settings]
> 
> The idea of the framework is to provide consistent ways of
> programming raw images into FPGA's.
> 
> Programming from device tree overlays is supported.
> 
> The core (fpga-mgr.c) does not include a userspace interface
> and just exports kernel functions.
> 
> This approach separates the core from the interfaces.
> 
> Each interface can be enabled or disabled in the defconfig.
> In some production contexts, interfaces that might be used
> during development can be disabled.
> 
> The core exports kernel functions to:
>   * write the fpga from a buffer or using the firmware layer
>   * get fpga status
>   * find a particular fpga manager from a device tree phandle
>   * register/unregister lower level fpga drivers.
> 
> The bus allows us to:
>   * program fpga from a device tree overlay using firmware.
>   * automatically reload firmware and reprogram fpga during resume.
> 
> The sysfs interface:
>   * read only, get the name and status of fpga manager.
> 
> I have a configfs interface patch which I haven't included,
> adds configfs as a separate file.

Thanks for the patches... is there new version? Is that corresponding
socfpga code?

I'd like to configure fpga with .rbf file on board similar to SocKit.

Thanks,
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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