[U-Boot-Users] How to load the second u-boot loader from first one

[kkk kkk]

Hi all,

I am trying to build a new u-boot loader on MPC8560, 
I have already a u-boot loader on it,
but I don't want to replace the old one, 
could I load the testing u-boot loader from the old one ?
What type should I select for the testing u-boot loader ?

Thanks a lot.

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