I have spent a long day hacking and got it
running with by brand new lite5200 EVB
Just for others there is little summary of my experiencies
- Macraigor Wiggler/ocd_cmdr does not yet support mpc5200
so there is no low cost ocd tool ( or least i have not found one )
The COP tools are not compatoble between processors
when there seems to be relativelly good compatibility between BDM tools
based least on experience with MPC8xx and MPC555 series
---> continue searching low cost tool or just wait ...... or hack one
without motorola specs
- It looks like that it is not so easy any more compile non u-boot
version of kernel. Make zImage gives one compilation error
mentioned and does not even work after it.
---> Easiest way is to move to u-boot
- With u-boot Wolfgang Denk give advice to make ram
loadable version. I just did not find easy instructions
to make it.
--> Find out to change TEXT_BASE from board/icecube/config.mk
Notice also that there is in icecube.c CFG_RAMBOOT
that needs to be defined in icecube.h that it works in RAM
with these modifications it work in RAM
-- Compile u-boot flashable version. Even it
is vompiled for 0xff800000 base address it looks a like
that it needs still CFG_RAMBOOT if it is
started from dbug with go ff800100
-- Now you can get kernel booting from uboot with
tftpboot 200000 uImage
bootm 200000
- Try to meke your own ramdisk image. There is still
in uboot manual pages just mentioned "old wau" , read
kernel Documentation/initrd.txt . The way i used
to do it does not work any more. uboot just saus
invalid magic number. Try found out what is wrong
-- > Find out that it needs new utility to make u-boot
compatible header
./u-boot-1.0.0/tools/mkimage -n 'Kates ramdisk' -A ppc -O linux -T
ramdisk -C gzip -d initrd.gz initrd.image
- Got kernel died with "cant fork init",
-->find out that your old linux kernel utilities, busybox, init
jne are no longer copmpatible with libraries, make or find new set
Looks a like that it is doable but it needs lot of time and
once again "reverse documentation read" that is that found
first a solution and then you find documentation ......
May be good step by step instructions are needed someones that
won't spend all day long hacking
-- After midnight you are hungry, tired and five cats and dog are asking
food
--> feed them and go to sauna ... ;)
Kate
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
