From: Stefan Thomasson <stefan.thomasson@possio.com>
To: Linux MTD <linux-mtd@lists.infradead.org>
Subject: Question about protection registers in intel strataflash
Date: Wed, 04 Dec 2002 14:52:02 +0100 [thread overview]
Message-ID: <3DEE0882.75037D4E@possio.com> (raw)
Hi,
The calculation of ofs_factor does not seem to be
correct, at least not for the setup I'm using,
One 28F128j3a in word mode.
ofs_factor = cfi->interleave * cfi->device_type;
interleave is 1 (1 chip) and device_type is 2 (16 bit)
Which will lead to reads from 2*(ProtRegAddr+1) in
my case 0x202 but I know its located at 0x102.
Is the ProtRegAddr supposed to be a byte address
which need to be multiplied or is it a word address?
In 28f128j3a manual tables 20 and 21 it looks like
the same address should be used.
So I think only the cfi->interleave should be used.
reply other threads:[~2002-12-04 13:23 UTC|newest]
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