[U-Boot] Problem with Porting U-boot on 8308

Wolfgang Denk wd at denx.de
Thu May 12 07:29:27 CEST 2011


Dear Sharath Kurudi,

In message <BANLkTi=U57=pm8sOmRMHgONTBA9VQEOung at mail.gmail.com> you wrote:
>
>   I am new to Uboot, I am trying to port Uboot on 8308, on single steeping
> the uboot gets stuck at _start_of_vectors_  Machine check exception. Could

Please read the documentation what a machine check is and why it
happens.

> anyone please explain what STD_EXCEPTION mean in start.S code and why it
> happens ?

STD_EXCEPTION is a macro that is used to instatiate the code for the
standard exception handlers.

> # Step timeout detected
> The address 0xfff00220 corresponds to Machine check exception in System.map
> of u-boot code.

Did you try reading the BDI FAQs?  IIRC there are some referring to
debugging of exception handlers.

Best regards,

Wolfgang Denk

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