kernel compilation

[pnail]

Checkout A780 Wiki for details!!

I guess it would be good to merge the toolchain for A780 in scratchbox.org.

Does anyone have BLOB sources? Are there drivers for sd/mmc in BLOB? If it does, then instead of replacing original kernel, we just have custom kernel and root filesystem on sd/mmc and just tweak using some button at poweron to run either. It would be much easier to experiment with the custom kernel/rootfs in pluggable flash!!

Thanks to Pascal for the kernel sources.

[cyph]

Hey, thanks for getting the code into a compilable state!! Have you actually flashed it to the phone to see if it boots? I guess you can try using flashkit to replace the original kernel on the phone. The flashing part should not be a problem, as the kernel is not XIP but instead uncompressed into RAM at bootup.

As for blob.. I don't think it contains SD/MMC code. the SD/MMC interface is actually implemented in a binary module, which I don't think Motorola will ever provide the source for...

[pnail]

Hmmm... gumstix.org (PXA255) already supports sd/mmc, BT (bluez?), WiFi(CF), JTAG, 2.6+. (your dream come true mightymop?)
No host side USB though it seems

I guess we should be able to get the mmc/sd sources from there and create our own BLOB (or atleast replace it by UBoot

and yes, if one happen to open up the phone, you can solder that USB host transciever/JTAG header using your bread toaster
http://www.seattlerobotics.org/encod...6/oven_art.htm

Are you game?

[maxx_730]

The bootloader is actually based on blob.... See my thread in junk chats about it. We should be able to get the source for it from moto, but no requests have been made yet.

[mstoilov]

Have anyone successfuly installed a compiled kernel on A780? I tried, but the phone didn't start at all . I will keep trying and if successful will post here!

[laforge]

Have anyone successfuly installed a compiled kernel on A780? I tried, but the phone didn't start at all :x . I will keep trying and if successful will post here!

I have made the same observation. The recompiled zImage just won't boot at all. There might be some magic signature checking in the bootloader, but so far I haven't found anything suspicious in the bootloader.

Please keep me posted if you make any progress.