Compiling Linux kernel

  • 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 directory containing the patches is on the included DVD, and on the TQ product page.

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

If the following error occurs when configuring the kernel source code:

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

then the environment is not configured correctly. For more information see section Installation of the ELDK Toolchain.

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
  • Last modified: 2022/08/04 15:02