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