e680 kernel compile/upgrade

[silvio]

Did anyone succeed in running a compiled kernel from pascal's sources on the phone ?
To just recompile the kernel and reflash the phone with it ?

If that works ok, did anyone try to port the e680-specific drivers to any 2.6-based kernel and test the phone with that ?

Any developers with montavista 4.0 handy ?

[pascal]

i think without the bootloader stuff its riskant to try this,
evaldas please correct me if i am wrong.

[evaldas]

There's always a little bit of risk but not so huge You can flash your custom kernel and if doesn't work just use 3 button combination upon startup to get to the bootloader and use PST to flash working firmware.
And never mess with the bootloader.

[pascal]

ah you mean never overflash the bootloader with a wrong version, because perhaps than than the 3 button combination is gone too, and phone become waste.

[maxx_730]

Wrong version? There are no wrong versions so far. And every moto bootloader has had a 3 button combination so far that starts the bootloader.
Ps: did anyone disassemble the bootloader yet? Afaik IDA Pro has recently got support for Xscale. Unfortunately, i dont have IDA Pro.

[pascal]

maxx with a wrong version i mean to flash my own bootlaoder or a cahnged version(if we dissamble and compile a changed version) or something wrong in this place

[evaldas]

of course it would be nice to upgrade to own bootloader such as redboot or pmon or any other well known. it can give you possibility to test new kernels without flashing, network boot and other things very useful for development.
but as this is very complicated process to adapt bootloader to unknown hardware this is not important issue right now.
IDA works for executables perfectly, but bootloader code needs more investigation so I didn't try to dissassemble it. Instead I'd try to capture USB communication between PST and phone.

[pascal]

evaldas your avatar

i love to see this stuff

[silvio]

ohh... guys...
well, its nice to have a discussion on whether it's risky or not to install a custom kernel, and the answer is, no, it's probably not, if you don't flash the bootloader and if your kernel doesn't do strange things.
Anyway, the questions asked still stay.
Is there anyone (slight fingerpointing at pascal that succeeded on running a self-compiled e680 kernel from sources ?

If somebody already did the work on making it run, then maybe we'd create an internal dev group to port the custom e680 stuff from e680 kernel to montavista 4 or generic 2.6 kernel (w/ montavista RT additions maybe).

p.s. Pascal, where'd you get the kernel from anyway (if its not a secret) ?

[pascal]

silvio i got the kernel, you compile it thats fair parting

no its no secret, i guess you dont know the story: http://www.www.motorolafans.com/inde...ewtopic&t=1049