Hello All,

I am trying to boot a kernel and rootfs build with OpenEmbedded for the SAM9-L9260 (Olimex) board. I was able to get the rootfs working just fine. But I am stuck at trying to get the kernel to work.

Currently im trying to load the kernel to the nand off a usb stick then boot. In u-boot I start the usb service and then use "fatload usb 0:1 0x22200000 uimage" then I run "bootm 0x22200000". It seems to start booting and checking the kernel successfully and then it hangs at starting kernel. Results below.

Anyone have any ideas? Is there a way to get further debugging from the kernel?

U-Boot> bootm 0x22200000
## Booting kernel from Legacy Image at 22200000 ...
Image Name: Angstrom/2.6.25/at91-l9260
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1566172 Bytes = 1.5 MB
Load Address: 20008000
Entry Point: 20008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

Starting kernel ...

Check the bootargs settings in u-boot environment.
See if you are passing correct console argument.

If that is correct check if bootargs has "quiet" as kernel command line argument.
If so remove it and see if it gives more info.

If you want to see why the kernel is stopping early, enable low-level kernel debugging and early printk in the kernel .config:

Kernel Hacking->
* Kernel Debugging
* Kernel low-level debugging functions
* Early printk

Make sure that U-boot has the correct machid set for your machine (must match kernel):

set machid 0x1234

-Chris

Hi,

Maybe ,your u-boot machine ID is is different with the kernel machine ID so the Linux doesn't boot properly. If you want to try with Linux kernel of Linux4Sam community, I think you should change the u-boot machine ID from SAM9-L9260 (1501) to at91sam9260ek (1099) in the file :
u-boot/include/asm-arm/mach-types.h . Recompile the u-boot again .

For the kernel, just only modify the linux-2.6.x/arch/arm/match-at91/board-sam9260ek.c to make suite for the SAM9-L9260's devices.

Good luck.