• TQ Ubuntu virtual machine
• Build system installation
• Toolchain installation

• Configuration
• Compilation
• Deployment
  • Bootloader
  • Kernel
  • Root file system

• NFS
• NOR-Flash
• eMMC
• SD-Card

The ftp download server for the iso image of the ELDK CD is: http://ftp.denx.de/pub/eldk/4.2/ppc-linux-x86/iso/ppc-2008-04-01.iso

Before running the installation you have to create a direcotry for the installation. After that you can run the install skript.

tq@ubuntu:/media/ppc-2008-04-01$ sudo mkdir /opt/eldk
tq@ubuntu:/media/ppc-2008-04-01$ sudo chown tq:tq /opt/eldk
tq@ubuntu:/media/ppc-2008-04-01$ ./install -d /opt/eldk <label arch>ppc_85xxDP</label>

After a successful run of the install skript you need to make the ELDK rootfs able to boot. Run the two skripts with sudo enabled.

tq@ubuntu:/media/ppc-2008-04-01$ sudo ./ELDK_MAKEDEV -d /opt/eldk/
tq@ubuntu:/media/ppc-2008-04-01$ sudo ./ELDK_FIXOWNER -d /opt/eldk/

The configuration of the environment variables $PATH and $CROSS_COMPILE should be written in the file /opt/eldk/setup_eldk.

tq@ubuntu:/opt/eldk$ echo 'PATH=$PATH:/opt/eldk/usr/bin:/opt/eldk/bin
export CROSS_COMPILE="<label arch>ppc_85xxDP</label>-"
export ARCH=powerpc' > setup_eldk & chmod u+x setup_eldk

To use the ELDK toolchain for cross compiling you can simply source the created configuration file.

tq@ubuntu:~$ source /opt/eldk/setup_eldk

source /opt/eldk/setup_eldk

tq@ubuntu:~$ echo 'source /opt/eldk/setup_eldk' >> ~/.bashrc

Download the archive with the patches and unpack it (e.g. to ~/src/BSP/UBoot/patches). Download the basic version with git.

user@ubuntu:~/src$ git clone http://git.denx.de/u-boot.git
user@ubuntu:~/src$ cd u-boot/
user@ubuntu:~/src/u-boot$ git checkout -b P2020 v2011.03
user@ubuntu:~/src/u-boot$ stg init
user@ubuntu:~/src/u-boot$ stg import -t -s ~/src/BSP/UBoot/patches/series

The environment variables ARCH and CROSS_COMPILE were set according to section Configuring the ELDK Cross Compiler.

The following commands have to be executed: to configure and compile with make:

user@ubuntu:/.../src/u-boot$ make distclean
user@ubuntu:/.../src/u-boot$ make TQMP2020_config
user@ubuntu:/.../src/u-boot$ make all

• http://www.denx.de/wiki/view/DULG/UBootConfiguration
• http://cache.freescale.com/files/dsp/doc/app_note/AN4172.pdf?fsrch=1&sr=1

• Ubuntu 10.04 i386 (VMware Virtual Machine)
• ELDK 4.2

Install the git source code management system.

user@ubuntu:~$ sudo apt-get install git-core stgit uboot-mkimage

Create a directory for the Linux source code:

tq@ubuntu:~$ mkdir ~/src
tq@ubuntu:~$ cd ~/src

The current BSP (October 2011) is based on the 2.6.39 kernel of Denx software engineering. The base version of this source code you get from the Git server http://git.denx.de.

tq@ubuntu:~/src$ git clone http://git.denx.de/linux-denx.git
tq@ubuntu:~/src$ cd linux-denx

Create local branch named p2020 with the source code of version DENX-v2.6.39:

tq@ubuntu:~/src/linux-denx$ git checkout -b p2020 DENX-v2.6.39

Unpack the archive with the patches into a local folder e.g. to ~/src/BSP/Linux/patches.

The patches are now applied to the kernel sources:

tq@ubuntu:~/src/linux-denx$ stg init
tq@ubuntu:~/src/linux-denx$ stg import -t -s ~/src/BSP/Linux/patches/series

If the ELDK has been configured according to the instructions the cross compilation toolchain is ready to compile the kernel.

Configure and build:

tq@ubuntu:~/src/linux-denx$ make 85xx/tqmp2020_defconfig
tq@ubuntu:~/src/linux-denx$ make uImage

*** Can't find default configuration "arch/x86/configs/85xx/tqmp2020_defconfig"!

To load the kernel uImage in the directory arch/powerpc/boot, it has to be copied to the TFTP root directory. Depending on the configuration of the TFTP server it is e.g. /tftpboot. Starting from the source directory the uImage is copied to the /tftpboot directory with the following command.

tq@ubuntu:~/src/linux-denx$ cp arch/powerpc/boot/uImage /tftpboot