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Understanding U-BOOT source code

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scorrpeio

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I am working on Embedded Linux and have understood Bootstrap code...

ROM Code -> BootStrap -> U Boot -> Kernel -> RootFiles

Now, my task is to get complete understanding of U-Boot source code.
The code is of 60MB and very difficult to read comments and understand.

I have searched through google for some help but results are mostly related to compiling and installing U-boot

Can any one give me link/ppt/doc where I can understand the exact flow of execution of U-Boot code.
 

scorrpeio said:
I have searched through google for some help but results are mostly related to compiling and installing U-boot

Can any one give me link/ppt/doc where I can understand the exact flow of execution of U-Boot code.
Click to expand...

Hi, Have you tried source code analysisools like Source Navigator I guess you have already done it, if not give it a try.
It will give you the flow, xref class diagram and many more.
Personally I use it and it is a very good tool to understand program flow.

Next If you want how the boot loaders works then consider something small like LILO (not for embedded)

In my view the bootloader like GRUB and U-Boot are verymuch like a small OS ;)

Thanks.
 
Thank you for guidance...I didnt know about source navigator.
I have started downloading it....nd will soon get back 2 u if come across doubt ;)
 

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