"Subrahmanya, Chaithrika" <[email protected]> writes:

> The latest kernel seems to be broken for DM646x EVM.
> It does not boot on the DM646x EVM but runs on DM644x EVM. It has not been 
> tested on DM355.
> The kernel image was built using both the generic and DM646x specific 
> defconfig files.
>
> Compiling with low level kernel debug messages did not help either as there 
> was no serial output after the 
> "Uncompressing 
> Linux...............................................................................................
>  done, booting the kernel." message.
>

Chaithrika,

I noticed this too, though with CONFIG_DEBUG_LL, I see garbage on my
serial console.

If you checkout at this commit:
6c76c1971a42eb96448c10f914e444e35049cdcd, dm6467 boots again.
Checking out the next commit, which is a merge with upstream, it no
longer works for me.

A quick look a the diff between the two commits, I didn't see anything
obvious changing in DaVinci specific code.

I don't have a working CCS for this platform, but if you have a
working CCS, it might be worth debugging where the code actually is.

On quick way is to just dump the kernel printk log.  Look for the
address of the symbol __log_buf in System.map.  Then using CCS, halt
the kernel and dump memory at that location in ASCII.  You should then
see the kernel printk messages.

Kevin



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