Mini 2440

== How to build the kernel ==

To get running the kernel, we need to setup the environment with the proper toolchain so we can start to cross-compile the kernel.

=== GNU ARM Toolchain ===

* Download arm-none-linux-gnueabi from sourcery.mentor.com or the manufacturer website

* Decompress the tarball and place in `~/CROSS_COMPILER`

* Add the path to your environment by editing `~/.bash_profile` and adding

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PATH=$PATH:$HOME/bin:~/CROSS_COMPILER/arm/4.4.3/bin

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=== Build the kernel ===

* Download the kernel from kernel.org

* Create a working directory and decompress the kernel inside there

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# mkdir kernel

# cd kernel

# wget http://mirrors.kernel.org/...linux-2.6.36...

# tar zxvf linux-2.6.36*tgz

# mkdir kernel-bin

# cd linux-2.6.36

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* Generate `.config`

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CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm make O=../kernel-bin/ mini2440_defconfig

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* Modify the kernel

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# cd ../kernel-bin

# make ARCH=arm menuconfig

# cd ../mini2440

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* Cross compile the kernel and modules

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CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm make O=../kernel-bin/

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* If using uboot, then generate uImage

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# ../uboot/tools/mkimage -A arm -O linux -T kernel -C none -a 0x30008000 -e 0x30008000 -d ../kernel-bin/arch/arm/boot/zImage ../uImage

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=== Kernel Modules ===

* Build the modules that are going to be placed into the filesystem

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CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm make O=../kernel-bin/ modules

CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm make O=../kernel-bin/ INSTALL_MOD_PATH=.. modules_install

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* Mount the FS image and copy the files inside the root folder

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# cp ../lib/modules/2.6.36/ /mnt/mini2440/rootfs/lib/modules/ -r

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=== uboot ===

* Get the sources from git repository

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# mkdir uboot

# cd uboot

# git clone git://repo.or.cz/u-boot-openmoko/mini2440.git

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* Prepare and build uboot

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# cd mini2440

# make mini2440_config

# make all

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