Trouble "Transferring control to Linux (at address 00000000)"

[Mikhail Zaturenskiy]

Hi guys, I've been working off your suggestions and here's my update
on where I'm at now.

For reference, attached are my current
"linux-2.6-denx/arch/powerpc/boot/dts/ep88xc.dts" and
"u-boot-2009.03/include/configs/EP88x.h".

> I might be able to help out. Scott's right. According to U-Boots
> include/configs/EP88x.h,
> CONFIG_SYS_IMMR is 0xf0000000, but the Linux the ep88xc.dts is
> referring to an IMMR set
> to 0xfa200000. Replace every instance of 0xfa20 with 0xf000, and it may work.
I did notice the IMMR discrepancy and as Frank suggested adjusted the
0xfa20xxxx values to 0xf000xxxx in my DTS, though I'm wondering if it
would be better to have just set my CONFIG_SYS_IMMR to 0xfa200000? Not
sure if that would break more than it would fix. Anyways, I have not
noticed any difference in output after changing this in the DTS, but
I'll leave it this way as it seems more correct.

>>> Also, make sure u-boot is properly updating the memory size in the device
>>> tree.  Can you dump the post-fixup device tree in u-boot?
>> Not sure, but I'll try to find out if that's possible. It'd certainly
>> answer a lot of questions...
While I have not yet figured out how to dump the post-fixup tree... I
can see that U-Boot doesn't seem to be doing proper fixup because
after manually setting all the DTS fields that U-Boot was supposed to
fill in (clock frequency, RAM start/end, etc.), the kernel seems to be
going through a fairly normal boot sequence. Without me manually
setting those fields, they remain initialized to 0. The only issue is
that no output goes to the console.

Here is my current output.