From: John_s (sent by Nabble.com) <lists@nabble.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] CFI flash – Problem with erasing boot block.
Date: Fri, 13 Jan 2006 07:53:22 -0800 (PST) [thread overview]
Message-ID: <2364075.post@talk.nabble.com> (raw)
Hi All,
I am developing a CFI based flash driver. I can query the device and get all sector/block information. I am having problems erasing sectors 1, 2, 3 and 4 (bottom 64-KB), please the flash geometry below. The problem is that when I attempt to erase sectors 1, 2, 3, OR 4 I end up erasing sectors 1-4 . Not sure why this is happening.
I am able to erase the remaining sectors, sectors 5 through 19 individually without problems.
Here is flash?s geometry. I would appreciate your expert opinion as how to avoid this or even as it why it is happening. Thanks in advance.
Device: ST?s M29w800DB, Bottom boot block.
Sector 1 0x00000 ? 0x01fff
Sector 2 0x02000 ? 0x02fff
Sector 3 0x03000 ? 0x03fff
Sector 4 0x04000 ? 0x07fff -> First 64Kb boundary.
Sector 5 0x08000 ? 0x07fff -> All remaining sectors are 64 -Kb bulk sectors.
?????????????.
Sector 19 0x78000 ? 0x7ffff
- John
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Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-13 15:53 John_s [this message]
2006-01-13 16:36 ` [U-Boot-Users] CFI flash – Problem with erasing boot block Wolfgang Denk
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