* UBI - Nand bad block management details required
@ 2007-06-22 10:06 Sudeep K N
2007-06-22 10:10 ` Artem Bityutskiy
0 siblings, 1 reply; 2+ messages in thread
From: Sudeep K N @ 2007-06-22 10:06 UTC (permalink / raw)
To: dedekind; +Cc: linux-mtd
Hi,
Does the UBI depend on the bad block table(BBT) built by MTD?
In otherwords, can the complete chip scan during chip probe be avoided
by enabling/setting NAND_SKIP_BBTSCAN in chip->options?
Does UBI built BBT independent of the MTD built BBT?
Regards,
Sudeep
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: UBI - Nand bad block management details required
2007-06-22 10:06 UBI - Nand bad block management details required Sudeep K N
@ 2007-06-22 10:10 ` Artem Bityutskiy
0 siblings, 0 replies; 2+ messages in thread
From: Artem Bityutskiy @ 2007-06-22 10:10 UTC (permalink / raw)
To: Sudeep K N; +Cc: linux-mtd
On Fri, 2007-06-22 at 15:36 +0530, Sudeep K N wrote:
> Does the UBI depend on the bad block table(BBT) built by MTD?
Yes, it asks MTD if blocks are bad or not.
> In otherwords, can the complete chip scan during chip probe be avoided
> by enabling/setting NAND_SKIP_BBTSCAN in chip->options?
No, UBI relies on MTD in this. MTD supports on-flash BBT tables, so if
you do not want MTD level to do full chip scan you should use on-flash
BBT.
> Does UBI built BBT independent of the MTD built BBT?
No, it relies on MTD.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
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