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Date:	Thu, 20 Mar 2014 18:56:16 +0800
From:	Huang Shijie <>
To:	Lothar Waßmann <>
CC:	<>, Arnd Bergmann <>,
	Artem Bityutskiy <>,
	Brian Norris <>,
	David Woodhouse <>,
	Fabio Estevam <>,
	Ian Campbell <>,
	Kumar Gala <>,
	Mark Rutland <>,
	Pawel Moll <>,
	Rob Herring <>,
	Rob Landley <>,
	Russell King <>,
	Sascha Hauer <>,
	Shawn Guo <>,
	<>, <>,
	<>, <>
Subject: Re: [PATCH] mtd: gpmi: make blockmark swapping optional

于 2014年03月20日 18:09, Lothar Waßmann 写道:
> This can be disabled by parameter in the FCB (at least according to
> the i.MX6 reference Manual):
from imx28's reference manual, there is not such bit in the FCB to 
disable the
swapping. But you are disabling the swapping in the imx28's DTS file, 
isn't it?

I think it is dangerous.

> |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with
> |             metadata[0] after reading a page using BCH40.
> |             If the value set is 1 then ROM will not do
> |             swapping
I will consult with our ROM colleague about this DISBBM bit.

I am not sure if the ROM still do the swapping for the uboot when we set 

Huang Shijie

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