[PATCHv2 1/1] mtd: gpmi: make blockmark swapping optional
From: Lothar Waßmann <hidden>
Date: 2014-03-28 09:02:28
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Hi, Huang Shijie wrote:
? 2014?03?28? 16:16, Lothar Wa?mann ??:quoted
Still there is no need for the Linux NAND driver to be able to read or write partitions in a format that the Boot ROM can understand. Thus itIf you do not use the NAND boot, there really no need to do so.
There is no need for the ROM code to access any other partition than the bootloader itself. Thus Linux can perfectly well be booted from NAND without any byte swapping.
Since you need the NAND boot, we should enable the swapping for imx28.
Why? There is no need for Linux to do any swapping when not accessing the bootloader partition.
quoted
is perfectly legal to allow disregarding the BB marks and solely rely on a flash based BBT.The BB mark is in the page 0 of a NAND block. But the swapping can occur in _each_ page of a NAND block, _NOT_ only the page 0. I think you are confusing at these two things.
No, I'm not confusing anything. The swapping in any other page than page 0 is completely useless. Thus, when there is no need to recognize the BB markers, there in no need to do any swapping too. Lothar Wa?mann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstra?e 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Gesch?ftsf?hrer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | info at karo-electronics.de ___________________________________________________________