[U-Boot] JFFS2 with NAND flash is very SLOW ...

[Cote, Sylvain]

Dear Pierre,

> It works... but I have a very big problem : it's very very slow!!!! How can
> I decrease the time to load the kernel image?
> I try with u-boot 1.3.3, 1.3.4 and 2009.03 but the problem is always
> present...

I have tried to boot from nand with 1.3.4 and 2009.03.  I can tell you that
2009.03 is much faster then 1.3.4 to boot from a formatted JFFS2 nand.

> Can you help me please?

What is the size of the partition used to store the kernel? I suggest to use a small partition to store the kernel (5M by exemple something like 10M if you have an initramfs).  You should have something like this:

MTD1 u-boot 2M
MTD2 kernel 5M
MTD3 content remainingM

Sylvain Cote


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