From: Todd Poynor <tpoynor@mvista.com>
To: Pavel Machek <pavel@suse.cz>
Cc: David Woodhouse <dwmw2@infradead.org>,
linux-mtd@lists.infradead.org,
kernel list <linux-kernel@vger.kernel.org>
Subject: Re: latest mtd changes broke collie
Date: Thu, 10 Nov 2005 15:58:44 -0800 [thread overview]
Message-ID: <4373DEB4.5070406@mvista.com> (raw)
In-Reply-To: <20051110224158.GC9905@elf.ucw.cz>
Pavel Machek wrote:
>
> With these hacks, I'm able to mount flash at least read-only. On
> attempt to remount read-write, I get
>
> "Write error in obliterating obsoleted node at 0x00bc0000: -30
> ...
> Erase at 0x00c00000 failed immediately: -EROFS. Is the sector locked?"
>
> Is it good news?
I see the old sharp driver has a normally-not-defined AUTOUNLOCK symbol
that would enable some code to unlock blocks before writing/erasing
(which isn't recommended since the code doesn't know the policy on
whether the block is supposed to be locked). The tree previously in use
may have had something similar setup. It seems these flashes have all
blocks locked by default at power up.
Try flash_unlock /dev/mtdX before remounting. More automatic means of
handling this are still under debate, I need to try another stab at
resolving that soon.
Looks like you're close to obsoleting the pre-CFI Sharp flash driver,
it's good news...
--
Todd
next prev parent reply other threads:[~2005-11-10 23:58 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-09 22:17 latest mtd changes broke collie Pavel Machek
2005-11-10 0:19 ` Josh Boyer
2005-11-10 9:48 ` Pavel Machek
2005-11-10 2:59 ` Todd Poynor
2005-11-10 9:50 ` Pavel Machek
2005-11-10 10:02 ` David Woodhouse
2005-11-10 10:38 ` Pavel Machek
2005-11-10 10:51 ` David Woodhouse
2005-11-10 10:59 ` Pavel Machek
2005-11-10 11:11 ` David Woodhouse
2005-11-10 11:44 ` Pavel Machek
2005-11-10 12:07 ` Pavel Machek
2005-11-10 13:02 ` David Vrabel
2005-11-10 13:09 ` Pavel Machek
2005-11-10 17:41 ` Richard Purdie
2005-11-10 18:09 ` Richard Purdie
2005-11-10 22:06 ` Pavel Machek
2005-11-10 22:41 ` Pavel Machek
2005-11-10 23:58 ` Todd Poynor [this message]
2005-11-11 0:16 ` Pavel Machek
2005-11-11 7:01 ` Ian Campbell
2005-11-12 21:33 ` Pavel Machek
2005-11-13 10:35 ` Ian Campbell
2005-11-14 12:10 ` Pavel Machek
2005-11-13 19:40 ` Todd Poynor
2005-11-14 12:08 ` Pavel Machek
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