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Re: [RFC,PATCH] Cleanup PC parallel port Kconfig

To: Arnd Bergmann <>
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
From: Geert Uytterhoeven <>
Date: Wed, 15 Jun 2011 13:24:24 +0200
Cc: "H. Peter Anvin" <>,,,,, Chen Liqin <>, Paul Mackerras <>,, Guan Xuetao <>, Lennox Wu <>,, Jesper Nilsson <>, Russell King <>, Yoshinori Sato <>, Helge Deller <>,, "James E.J. Bottomley" <>, Ingo Molnar <>, Matt Turner <>, Fenghua Yu <>,, Chris Metcalf <>, Mikael Starvik <>, Ivan Kokshaysky <>, Thomas Gleixner <>,, Richard Henderson <>, Chris Zankel <>, Michal Simek <>, Tony Luck <>,,,, Ralf Baechle <>, Kyle McMartin <>, Paul Mundt <>,,, "David S. Miller" <>
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On Wed, Jun 15, 2011 at 11:46, Arnd Bergmann <> wrote:
> * In case of floppies, the "solution" was to write a driver for every 
> platform that
>  doesn't have PIO, since they tend to have other differences. The amiflop and
>  ataflop drivers are not even use readb(), they just derefence volatile 
> pointers
>  to do MMIO. I doubt we can find volunteers to clean that up.

Amiflop drives the Amiga floppy controller, which is completely
different from the
PC-style floppy controller.
Ataflop drives the Atari floppy controller, which seems to be a WD1772 and not
related to PC-style floppy controllers neither.

So none of them drive PC-style hardware, and both predate the generic readb()



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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