Who's the maintainer for the freescale MPC8349ITX board?
Russell McGuire
rmcguire at uwbt.com
Sat Jan 20 14:06:56 EST 2007
Bruce,
Did you ever get linux to boot up?
I am wondering if I am having similar problems on my system, though it is
based on the MPC8360E. Serial port code and clocking is the same between
these systems, at least it should be.
I am using Linux 2.6.19.2, and U-boot 1.1.6-dirty, though I think it
'mostly' U-boot 1.2.0 equivalent code, as 1.2.0 was released about a day
after I downloaded it.
I also can generate a 8360.blob file, and when I attempt to boot into the
kernel, it hangs with ZERO serial output, even though early serial is
defined.
-Russ
> > Per Grant's suggestion I changed it to:
> > 'dtc -I dts -O dtb -V 0x10 mpc8349emitx.dts > 8349.blob'
> >
> I get a 0 length 8349.blob file using the above. Have you tried -f?
>
> Kim
Hummmmm, interesting. I get a blob of about 4K when I do it. Oh, ooops.
Sorry. I did have to modify the *.dts file to get it to compile. There
was an error because there wasn't a 'linux,boot-cpu' entry in the cpu
node.
Adding the '-V 0x10' changed the behavior and I now seem to be hanging in
__delay() in serial8250_console_putchar(). Seems maybe the kernel is (at
least partially) up but I've got no console port. There may have been a
version issue. The DTC I'm using defaluted to a version 3 of the device
tree. I think I'm getting further in the kernel booting process (haven't
had a chance to really debug it yet) than I was now that I'm telling DCT
to generate a version 0x10 device tree.
I'm thinking this is a u-boot/*.dts file problem. The *.dts files isn't
complete and/or u-boot 1.1.6. isn't finishing filling in the device tree
as expected. I think now my problem is that the *.dts file expects u-boot
to fill in the 'clock-frequency' node in the serial ports and it's not
doing so. Timur indicates 1.1.6 doesn't support this board and I should
move to 1.2. Kumar also suggested this (even though I thought he was
suggesting I go backwards ;) sorry for the confusion Kumar) so I think
I'll give it a try. I appreciate all the help from here, but since it
seems more u-boot-ish than kernel I'm going to switch this to the u-boot
list. Seems more appropriate. If I find there are problems with the
*.dts file, I'll push that back here since they're part of the kernel
tree.
Thanks again for the help.
Bruce
More information about the Linuxppc-embedded
mailing list