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From: Steve Wahl <steve.wahl@qlogic.com>
To: linux-mtd@lists.infradead.org
Subject: jedec_probe.c bug: AMD AM29LV800 in byte mode
Date: Tue, 8 Mar 2005 13:08:53 -0600	[thread overview]
Message-ID: <20050308190853.GA18903@qlogic.com> (raw)

[Trying again, maybe I was overbose last time. :-) If I missed a
response, feel free to bash me with a clue-by-4.]

When this chip (AM29LV800) is in byte mode, the id should be read from
location 2, and when in word mode, the id should be read from location
1.

jedec_read_id() (jedec_probe.c, near line 1675) seems to do the exact
opposite (read from 2 in word mode, and 1 in byte mode).  Because of
this, it is not finding this chip for me.  

I hacked it to always read from 2 rather than 1.

I'm willing to develop a patch for this, but I'm sure some chips
actually work with the current code, and I don't want to break them.
So I need some guidance on how to proceed.

Should I be reading both location 1 and location 2, and add a field to
jedec_table[] that indicates which location(s) to compare with?

--> Steve Wahl, Qlogic Corporation

             reply	other threads:[~2005-03-08 19:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-08 19:08 Steve Wahl [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-02-18 16:48 jedec_probe.c bug: AMD AM29LV800 in byte mode Steve Wahl

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