From: "zhao, forrest" <forrest.zhao@intel.com>
To: kyungmin.park@samsung.com
Cc: 'Christian Lehne' <christian_lehne@gmx.de>,
tglx@linutronix.de, linux-mtd@lists.infradead.org,
'Jarkko Lavinen' <jarkko.lavinen@nokia.com>,
priewasser@gmail.com
Subject: RE: EBH with OneNAND doesn't work
Date: Wed, 21 Dec 2005 15:40:05 +0800 [thread overview]
Message-ID: <1135150805.28556.15.camel@localhost.localdomain> (raw)
In-Reply-To: <0IRU00ACK79L6E@mmp1.samsung.com>
On Wed, 2005-12-21 at 16:24 +0900, Kyungmin Park wrote:
> Hi
>
> As you know the OneNAND has only 16bit bandwidth
> When you access OneNAND with 8bit bandwidth, OneNAND can't work correctly
>
> In the previous JFFS2 w/o EBH, there's no problem with OOB.
> But JFFS2 w/ EBH is different. we have to handle byte access in OneNAND
>
> p.s, Does it need to check byte access in 'offset', I never see that case.
I think it's OK not checking "offset" as long as the free_oob
exported by OneNAND driver is 16-bit-aligned. EBH is stored only
from the start of a free_oob area.
But not sure if other application will start to store data from
arbitrary offset within a free_oob area in the future.
Thanks,
Forrest
next prev parent reply other threads:[~2005-12-21 7:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-16 12:23 EBH with OneNAND doesn't work Jarkko Lavinen
2005-12-16 12:37 ` Bernhard Priewasser
2005-12-19 10:52 ` Christian Lehne
2005-12-19 11:07 ` zhao, forrest
2005-12-21 7:24 ` Kyungmin Park
2005-12-21 7:40 ` zhao, forrest [this message]
2005-12-21 9:30 ` Jarkko Lavinen
2005-12-21 11:06 ` Jarkko Lavinen
2005-12-21 12:43 ` Vitaly Wool
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