Kim,
sorry for the general questions - but I'm running out of ideas.
We never ever had that many problems getting a PowerPC running during
the past 10 years.
I've cross-checked the hardware and design with Freescale FAE.
Everything looks fine and is approved.
We're running latest u-boot v1.3.2 and kernel 2.6.25-rc8 from Denx.
A MPC5200B System is up and running fine with this scenario, so
hopefully there are no basic problems.
The MPC8343B (rev.3.1) is working pretty fine with u-boot including
mtest. Only problem is a the TSECs not working with our RGMII phy - but
this can wait.
I've set up a dts based on the MPC834x_mds and removed the 2nd PCI bus
and local bus stuff.
Kernel has been build with a new platform "MVBLM7" which is the name of
our board - nothing special so far.
u-boot fills out all parameters (clocks, mem, initrd @ chosen, ...)
correctly and the kernel is started exactly the same way as the MPC5200B
system using "bootm kernel_add initrd_addr dtb_addr".
Kernel starts and crashes with "unable to handle kernel paging request @
00000000".
After turning debug on in some files I can see that the initrd memory
gets reserved and the dtb is parsed correctly.
PCI memory/io spaces are set up fine.
At first I thought this is a problem with the device tree since the call
trace always points to "of_"-functions and "strcmp".
So I removed nearly everything from the kernel and dts including PCI,
net, USB and peripherals leaving only a minimum (cpu, mem, soc-node with
ipic and serial).
Unfortunately the error is still the same !
I wonder if there are some basic issues regarding MPC8343 or
specialities from the Freescale boards not being present on our board.
Major difference is the CPU (MPC8343B), 512MB RAM (using 2 BATs of
course) and nothing else on the local bus besides the Nor-Flash.
Of course the MPC8343 has only a single PCI-32 and only one USB.
Do you have any hints on this ?
Do you suggest to wait for the 2.6.25 release ?
Do you know of any MPC8343 based boards already up and running ?
regards,
André Schwarz
MATRIX VISION GmbH, Talstraße 16, DE-71570 Oppenweiler - Registergericht:
Amtsgericht Stuttgart, HRB 271090
Geschäftsführer: Gerhard Thullner, Werner Armingeon, Uwe Furtner
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