From: ebiederman@lnxi.com (Eric W. Biederman)
To: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Subject: Re: Q: Probing for devices > buswidth???
Date: 09 Oct 2001 00:50:09 -0600 [thread overview]
Message-ID: <m3wv25gvdq.fsf@DLT.linuxnetworx.com> (raw)
In-Reply-To: <29886.1002609959@redhat.com>
David Woodhouse <dwmw2@infradead.org> writes:
> ebiederman@lnxi.com said:
> > Trying to understand some anomolous results I discovered that
> > gen_probe_newchip is looking for: 16 bit devices on an 8 bit bus. byte
> > interleaved 16 bit devices on a 16 bit bus. And some really bizare
> > things for a 32 bit bus.
>
> > Is there any good reason for doing it that way?
>
> What it's probing for is a 16-bit device in 8-bit mode. This is _different_
> to an 8-bit device :)
Just so I understand. There are chips with a 16-bit interface that
you can put in a crippled mode such that they pretend use only an 8
bit bus. But the id logic is the same as when the are on a 16-bit
bus?
I'm just trying to comprehend this weird situation.
Eric
next prev parent reply other threads:[~2001-10-09 6:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-09 5:23 Q: Probing for devices > buswidth??? Eric W. Biederman
2001-10-09 6:45 ` David Woodhouse
2001-10-09 6:50 ` Eric W. Biederman [this message]
2001-10-09 6:53 ` David Woodhouse
2001-10-09 7:04 ` Eric W. Biederman
2001-10-09 13:19 ` Kenneth Johansson
2001-10-09 13:22 ` David Woodhouse
2001-10-09 13:56 ` Kenneth Johansson
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