Hammer How to build Kernel
Here is how to build a custom kernel:
NOTE: If you are installing a custom rootfs, you may have to increase the size of the space in flash to hold the new rootfs image. You do this by editing the linux-2.6.22/arch/arm/mach-s3c2410/mach-tct_hammer.c file. Find the .size string and change the value to be a little larger than your rootfs image is. The image size is in hex, so you will have to do a conversion to get the right value.
tar xzf linux-2.6.22.tar.gz gunzip -c Hammer-linux-2.6.22-09122007.diff.gz | patch -p0 cd linux-2.6.22 cp hammer-config .config make oldconfig make zImage
The kernel can be found in arch/arm/boot/zImage