From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from host.kingdommedia.net ([209.239.36.136] helo=host2.fw2.com) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 173jUu-0005kn-00 for ; Fri, 03 May 2002 21:17:44 +0100 Received: from localhost (CPE0080c8df51b7.cpe.net.cable.rogers.com [24.112.28.188]) by host2.fw2.com (8.10.2/8.10.2) with ESMTP id g43KHhT22315 for ; Fri, 3 May 2002 16:17:43 -0400 Received: from [10.0.0.19] (helo=localhost.localdomain ident=slayne) by localhost with esmtp (Exim 3.12 #1 (Debian)) id 173jUt-0006XM-00 for ; Fri, 03 May 2002 16:17:43 -0400 Subject: Re: A few questions (cramfs as root, flash permissions and JFFS2 on 2.2.18) From: Chris AtLee To: linux-mtd@lists.infradead.org In-Reply-To: <1020452092.878.45.camel@geb> References: <1020452092.878.45.camel@geb> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-8z7srWFAmgfHfJoIysaV" Date: 03 May 2002 16:17:42 -0400 Message-Id: <1020457063.12077.52.camel@geb> Mime-Version: 1.0 Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: --=-8z7srWFAmgfHfJoIysaV Content-Type: text/plain Content-Transfer-Encoding: quoted-printable > My second question has to do with protection on the flash chip itself.=20 > Whenever I try to mount a jffs image I get lots of errors saying that > Erasing failed horribly. So I tried the erase and eraseall utilities > and get the message that I'm trying to erase a Read-Only filesystem. My > bootloader allows me to peek and poke memory manually, so I played > around with locking / unlocking sections of flash and it seems that I > can lock and unlock blocks of flash just fine, it's just that they > aren't reported correctly by the Read Configuration command...Is this > what is meant by "Legacy lock/unlock" in the MTD debug output? MTD > detects this at unsupported on my unit. Ok, I fixed this problem by adding a command to mtd->unlock for the addresses corresponding to the partition I want to be read/write. Is this the correct solution? Cheers, Chris --=-8z7srWFAmgfHfJoIysaV Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQA80vBmoOgacgDd/cQRAgwzAJ0W6QwKsJQSDY1FpldzeTKX21pkbgCeL1hg fzCWJudxI8h9ZrED4yOv/uY= =cLId -----END PGP SIGNATURE----- --=-8z7srWFAmgfHfJoIysaV--