dong in kang wrote:

As a debugging tool, I'm using Metrowerks Codewarrior v.6.0 running on
Windows 2000 platform.
The BDI2000 for Codewarrior is connected to the JTAG port of the Sandpoint
X3.
I used the Codewarrior to load the linux kernel to the SDRAM of the
Sandpoint X3.
Of course, I used GCC to compile Montavista Linux kernel.
(I heard that BDIgdb is the best tool for Linux kernel debugging.
I'm considering purchasing BDIgdb.

Okay, that helps...I think.  I still don't know what "BDI2000 for
codewarrior" means/is but anyway...

For right now, I recommend just using the telnet interface to the bdi.
Its simple and works.  You can download the zImage thru that interface
(and tftp).  The bdi manual has a page with all the cmds on it.  Also,
while using the telnet interface, use only hard breakpoints (which means
you can only have one set at a time).

Currently, I have a problem of enabling
mmu.
After the initial boot part of the Linux finishes setting up BATs and
enables the mmu,
the address translation is not done properly. So, when the kernel jumps to
0xC0000000, it jumps to physical address 0xC0000000.
It crashes there. I suspect BDI2000 with Codewarrior does not support mmu.

You shouldn't be having problems like that.  Are you sure you used a
valid .config when you built the kernel?  What address did you download
the zImage to?  Did you try building/running the non-initrd image
(zImage.sandpoint)?

Mark


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