[Ltib] mpc8349e-mitx LTIB upgrade to 2.6.22

[Steve DeLaney]

We are working with the MPC8348E-MITX board.
The in-box LTIB is linux kernel 2.6.13.4.  
we are attempting to upgrade to 2.6.22

Whats the point? Having encountered a PCI enumeration
problem with a PLX 6152 bridge, 
we are attempting to upgrade the kernel.

based on a thread in freescale forums, it looks like
2.6.22 upgrade has been done 
before.  unfortunately not too extensively documented.
 
so I will add a bit of color here:

we completed changes to the ltib files
config/platform/mpc8349itx/main.lkc, created
linux-2.6.22-mpc8349itx.config, 
along with
dist/lfs-5.1/kernel/kernel-2.6.22-mpc8349itx.spec.in

so far so good.  after ltib --configure starts the
2.6.22 build, 
it downloads the kernel from bitshrine
but in www.bitshrine.org/gpp, no suitable
patch file exists for kernel-2.6.22-mpc8349itx 
in fact the patches die off after 2.6.13 and 2.6.16

well, after booting linux 2.6.22 and loading the
ramdisk, the system hangs.  

now that we've come this far, we'd like to confirm
that this upgrade is 
feasible, and perhaps some advice on how to locate and
incorporate patch file(s).

we are trying to figure out...

1.  will this work ?

2. is there any way to know what patches exist in PPP?

3. assuming 2.6.22 can be built for the mpc8349, what
became of the earlier patches say from 2.6.13?  Were
they propagated upstream to kernel.org?

thanks,
/steverino2