MINI2440 embedded projects

This page is currently under constructions, I'm doing this all over with the new versions of all the software

Toolchain

First of all, we need a toolchain containing some command-line tools for our ARM platform:

• C and C++ compilers
• assembler
• linker
• C and C++ runtime libraries
• GNU debugger

I'm going to use the Sourcery G++ Lite ARM that is available for free.
You can get the last version from http://www.codesourcery.com/sgpp/lite/arm/portal/subscription3053

Downloading and unpacking

mkdir mini2440
cd mini2440
wget http://www.codesourcery.com/sgpp/lite/arm/portal/package5353/public/arm-none-eabi/arm-2009q3-68-arm-none-eabi-i686-pc-linux-gnu.tar.bz2
tar jxf arm-2009q3-68-arm-none-eabi-i686-pc-linux-gnu.tar.bz2
export PATH=/home/ttts/mini2440/arm-2008q3/bin:$PATH

The last line will add the bin directory the $PATH variable so that we can use the commands in that directory like normal commands.
Every time you open a terminal, you have to enter that last line. (or you can add it to your .bashrc file)

Uboot

Download uboot for mini2440

mkdir uboot
cd uboot
git clone git://repo.or.cz/u-boot-openmoko/mini2440.git

Compile uboot

export CROSS_COMPILE=arm-none-eabi-
cd mini2440
make mini2440_config
make all

When I tried to compile uboot I got an error about some weak declarations in lib_arm/board.c and common/main.c
I'm using the 4.4.x gcc, and the 4.3.x does not cause that error. You can downgrade your gcc or remove the "weak" definitions in those files like I did

Compile upload tool

cd ~/mini2440
wget http://mini2440.googlecode.com/files/s3c2410_boot_usb-20060807.tar.bz2
tar jxf s3c2410_boot_usb-20060807.tar.bz2
cd s3c2410_boot_usb
make

When make fails because he can not find the file "usb.h" install the ubuntu/debian package libusb-dev.

Upload the file

Open a terminal to the serial connection of the mini2440 board.
Put the NOR switch to NOR and power the board.
Now you get a "FriendlyARM BIOS"/supervivi menu, choose q to go to the supervivi shell.
In this shell you typ "load flash 0 232188 u"
Where "232188" is the size of the uboot.bin file you are going to send. (ls -la mini2240/uboot/mini2440 | grep u-boot.bin)
Send the file from your linux terminal:

./s3c2410_boot_usb ../uboot/u-boot.bin

Sometimes the upload tool says that the upload is failed, but don't trust it :P
The upload of uboot didn't work for my at first but just keep trying