From: David Vrabel <dvrabel@arcom.co.uk>
To: mtd@infradead.org
Subject: 2nd CFI chip detection fails sometimes
Date: Mon, 07 Aug 2000 15:31:24 +0100 [thread overview]
Message-ID: <398EC83C.D9F4AE57@arcom.co.uk> (raw)
Hi,
In cfi_probe.c (line 189)
/* put back previous value, in case we're operating on RAM... */
map->write16(map, tmp, base+ofs); <-- error here
#endif /* CFIDEV_INTERLEAVE_1 */
#if defined(CFIDEV_INTERLEAVE_2)
ofs = cfi_send_cmd(0x98, base, map, CFIDEV_INTERLEAVE_2,
CFI_DEVICETYPE_X8, &tmp);
The line marked error causes problems because it can put the flash chip
into an error state preventing correct detection. We need some way of
knowing if it's RAM before we do the write. Suggestions welcome!
David Vrabel
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next reply other threads:[~2000-08-07 14:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-07 14:31 David Vrabel [this message]
2000-08-07 14:33 ` 2nd CFI chip detection fails sometimes David Woodhouse
2000-08-07 16:17 ` Stephane Laroche
2000-08-07 16:21 ` Stephane Laroche
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