Ok, you’re
right Jason, I looked in
EDK and I didn’t have the icache or dcache boxes checked for the sram
so
I should get them mapped. Here’s my question I had EDK generate the
address and now everything is at 20400000 is that going to cause a
problem. Do I need the sram address to be at 0x80000000. I noticed
Emile
didn’t have his at 0x80000000 and oh by the way sorry Emile on the
gender
assumption.
Yes I
manually changed the sram address to
80000000 in EDK. So should I change the D/I cache to be 80000000 also
is
what you are saying right? Here’s my question must the SRAM address
be 80000000 or can it be anything but it has to have at least a 4MB
range
right?
Hi Eric
I just check up your mhs file, there is one thing, i don't really get
how
it works.
The mhs shows the I/D cache address from 0x20100000 to 0x201FFFFF and
there is no device that mapped to 0x20100000 to 0x201FFFFF. This is why
you
getting pipeline stalled error.
Normally D/I cache should map to memory device. The only memory device
is
SRAM_256Kx32 and mapped to 0x80000000 to 0x0803FFFFF. Did you manually
SRAM_256Kx32's address in the mhs file? or this is generated by edk bsb?
I think it will be a good idea that you recreate your hardware platform
and
kernel image, both auto-config.in and mhs shows wrong mapping address
for I/D
cache.
Regards,
Jason
Eric Lynum wrote:
Hi John thanks,
I haven't done the cvs update yet but I took the image files that were
created and I'm still having problems getting the kernel to boot. I've
enclosed my auto-config file which I have used to make the kernel now and
now after running dow -data image5.bin 0x80000000 and con 0x80000000, I get
this error Microblaze pipeline stalled executing instruction at >> PC:
0x80000000c. Try resetting the processor to continue. I tried to follow
Emile's document on changing the testmem.c file and changing the microblaze
version from 4 to 3.00. Should I do that or is that unneeded.
-----Original Message-----
From: owner-microblaze-uclinux@itee.uq.edu.au
[mailto:owner-microblaze-uclinux@itee.uq.edu.au] On Behalf Of John Williams
Sent: Saturday, October 08, 2005 11:41 PM
To: microblaze-uclinux@itee.uq.edu.au
Subject: Re: [microblaze-uclinux] error when compile
Hi Eric,
Eric Lynum wrote:
I have no idea why this happened but I commented out in mmap.c under the
mmnomu directory this section calling for a romptr and I was able to build
the image.bin and elf files. Any ideas on what this code was doing?
OK, so this one's beyond your control :) There's been some work going
on in the MM part of the CVS lately, looks like microblaze got affected.
Change to uClinux-2.4.x/arch/microblaze/platforms and do
$ cvs update Rules.make
That will pick up a one-liner fix that I just committed to CVS, and you
should be back in business.
Regards,
John
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