From: Chris AtLee <catlee@canada.com>
To: linux-mtd@lists.infradead.org
Subject: Re: A few questions (cramfs as root, flash permissions and JFFS2 on 2.2.18)
Date: 03 May 2002 16:17:42 -0400 [thread overview]
Message-ID: <1020457063.12077.52.camel@geb> (raw)
In-Reply-To: <1020452092.878.45.camel@geb>
[-- Attachment #1: Type: text/plain, Size: 885 bytes --]
> My second question has to do with protection on the flash chip itself.
> 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
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 232 bytes --]
prev parent reply other threads:[~2002-05-03 20:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-03 18:54 A few questions (cramfs as root, flash permissions and JFFS2 on 2.2.18) Chris AtLee
2002-05-03 20:17 ` Chris AtLee [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1020457063.12077.52.camel@geb \
--to=catlee@canada.com \
--cc=linux-mtd@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.