[U-Boot] Fwd: Help with replacing u-boot and kernel on a released HW...

[Naresh Mehta]

Hi List,

I am not able to attach the files. But they haven't been changed from
the original versions so hopefully, I still can be helped!

BR; Naresh


---------- Forwarded message ----------
From:  <u-boot-owner at lists.denx.de>
Date: Wed, Oct 13, 2010 at 11:40 AM
Subject: Help with replacing u-boot and kernel on a released HW...
To: nareshtechs at gmail.com


Message rejected. No base64 encoded MIME text parts allowed.



---------- Forwarded message ----------
From: Naresh Mehta <nareshtechs at gmail.com>
To: u-boot at lists.denx.de
Date: Wed, 13 Oct 2010 11:40:43 +0200
Subject: Help with replacing u-boot and kernel on a released HW...
Hi List,

I have a monta-vista linux based smartphone (Garmin Asus G60). It runs
u-boot and kernel 2.6.21. Since it is a released HW and from the
u-boot code, I can see that there are no ways to stop the existing
u-boot to boot the default kernel installed. There is a possibility to
do a region update from the memory card on boot-up. Looking at the
code, there is also a possibility to do a recover region i.e.
according to the comment it says, download Garmin region from USB.
Both the above methods basically run the same command "tffs_load 3
0x80007FC0;bootm 0x80007FC0". The tffs_load is attached in the email.


I have tried to put a bootable .bin file with a modified u-boot and
kernel but it does not seem to get loaded. I have tried loading the
kernel at 0x80007FC0, 0x80000000 and 0x0. I am out of ideas on how I
could get the modified u-boot and kernel on the device. Any pointers
would be greatly appreciated.

Just to be clear on how I create the bootable .bin:
- Compile u-boot for montana board (used for this device)
- Compile the kernel with montana_dev_defconfig and some kernel debug
options enabled
- Generate a bootable image from vmlinux with different load address
configurations as described above
- cat u-boot.bin and the bootable image to form a .bin file
- Place the file on the sdcard and re-boot.

I am now out of ideas. BTW, the HW consists of OMAP2430 and associated
components with an Ericsson U360 modem. I am attaching the montana.h
file for further reference which will give some overview of the G60
HW. My final goal is to load Android on this device but for that I
need new u-boot and modified kernel to get loaded first.

Cheers,

--

BR; Naresh

visit me at:
http://www.naresh.se/




-- 

BR; Naresh

visit me at:
http://www.naresh.se/