DESCRIPTION

Beginnings of a barebones application or operating system using the Beagle Board (OMAP3).

COMPILATION

To generate a U-boot image (.uimg) file:

make

To assemble a NAND flash image and test it with QEMU/Meego:

make test

There are also 'clean' and 'distclean' targets available.

TESTING

Besides the 'make test' target above, take a look at the 'boot.sh' script. It can be used to load the U-boot image over the serial port onto a Beagle Board.

For example:

• Plug in and power on a Beagle Board with a serial cable to /dev/ttyS0
• Run 'make && sh boot.sh'

• Expected output:

  Output: Die ID # Match Found. Operation completed! Output: loadb 82000000 115200

  Ready for binary (kermit) download to 0x82000000 at 115200 bps...

  Match Found. Operation completed! Downloading file: 100.000% completed (244/244 bytes) File Download completed Output: bootm 82000000

  Booting kernel from Legacy Image at 82000000 ...

  Image Name:
  Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 180 Bytes = 0.2 kB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK

  Starting kernel ...

  Hello world! Match Found. Operation completed!

NOTES

By default, the Makefile uses the CodeSourcery arm-none-linux-gnueabi (GNU/Linux) tool-chain. You can also use arm-none-eabi if you want.

http://sourcery.mentor.com/sgpp/lite/arm/portal/subscription?@template=lite

The GNU/Linux TAR contains the necessary files. Just unpack it and put the 'bin' directory in your path. There are also projects out there, such as EmDebian, with these tools packaged for your distribution.