[PATCHv2 0/3] mtd: onenand: add cache program feature for 4kb page onenand
kmpark at infradead.org
Thu Nov 4 05:10:36 EDT 2010
On Thu, Nov 4, 2010 at 5:58 PM, <roman.tereshonkov at nokia.com> wrote:
> I used driver/mtd/tests and did not observe any warnings except a couple of bad blocks for some boards.
Yes in case of mtd_test* there's no messages.
> Can you discribe your test case for me to reproduce it. And show your kernel log when it happens if possible?
> Is it for 2kb or 4kb page onenand?
Mount ubifs on OneNAND which has 4KiB pagesize and run fsstress -p 3
-n 1000000000 -d /ubifs
then you can or maybe see the UBI scrubbing message.
> Roman Tereshonkov
>>From: kyungmin78 at gmail.com [mailto:kyungmin78 at gmail.com] On
>>Behalf Of ext Kyungmin Park
>>Sent: 04 November, 2010 03:15
>>To: Tereshonkov Roman (Nokia-MS/Helsinki)
>>Cc: linux-mtd at lists.infradead.org
>>Subject: Re: [PATCHv2 0/3] mtd: onenand: add cache program
>>feature for 4kb page onenand
>>One concern is that after apply patch, there are some 1-bit ECC
>>warnings so UBI scrubbing messages are displayed.
>>Are there these message at your board?
>>On Wed, Nov 3, 2010 at 7:55 PM, Roman Tereshonkov
>><roman.tereshonkov at nokia.com> wrote:
>>> Implement cache program feature for 4KB page onenand.
>>> This feature improves the write data performance.
>>> The observed 128KB data program speed change is
>>> from 8827KB/s to 14156 KB/s when the feature is enabled.
>>> Roman Tereshonkov (3):
>>> mtd: onenand: add option and variable for cache program feature
>>> mtd: onenand: fix omap2 code to handle cache program feature
>>> mtd: onenand: implement cache program feature for 4kb page onenand
>>> drivers/mtd/onenand/omap2.c | 12 +++++++++---
>>> drivers/mtd/onenand/onenand_base.c | 22 +++++++++++++++++++---
>>> include/linux/mtd/onenand.h | 12 ++++++++++++
>>> 3 files changed, 40 insertions(+), 6 deletions(-)
>>> Linux MTD discussion mailing list
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