[U-Boot] why u-boot relocate it self to RAM from flash?

FengHua fenghua at phytium.com.cn
Mon Dec 2 15:18:38 CET 2013


> Hi,
> 
> I can not understand why u-boot relocate it self to RAM from flash? Why is
> it not executing from flash?
> Can anybody explain.
> 

First, flash is slow.
Second, there are many data structures or variables which should be writable.
So, we should copy u-boot to RAM and relocate it.

Regards







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