Quick guide for porting linux to ALTERA DE2 70

Platform and tools:  Ubuntu 9.04
Step 1,   Download the nios linux tallbal
wget http://www.niosftp.com/pub/linux/nios2-linux-20090929.tar
or use xunlei to fix it.
Step2,
tar xvf  nios2-linux-20090929.tar
cd nios2-linux
./checkout
Step 3,   Generate the fpga.h file
First, a nios processor should be constructed.
Use any one of examples in the DE2 cd.  For instance, use  E:\fpga\de2_70\DE2_70_demonstrations\DE2_70_NIOS_HOST_MOUSE_VGA
Then add a mmu as pics bellow.   Remember to click the Auto-Assign Base Addresses, or it will sthick on the booting stage.
Click Generate, this takes a while.
Alfter above steps, we can get fpga.h file now.Open Nios II Command Shell,   cd to this DE2...vga DIR,  and key in the following commond
sopc-create-header-files --single fpga.h
start complication
copy ***VGA.sof to c:/
then copy the fpga.h file to /softs/nios2-linux/linux-2.6/arch/nios2/include/asm
Step 4     Building the linux kernel
 
Add "PATH=$PATH:~/nios2-linux/toolchain-mmu/x86-linux2/bin" to ~/.bashrc file
cd /softs/nios2-linux/uClinux-dist
make menuconfig        
#Enable the dma9000 and mtd drivers
make
cd images
copy linux.initramfs.gz  to windows xp  c:/
Step 5   Flash Linux kelnel to DE2-70
 
Open Nios II Command Shell,   cd to this DE2...vga DIR,  and key in the
following commonds
 
nios2-configure-sof  ***.sof
nios2-download -g linux.initramfs.gz
nios2-terminal
 
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
[NiosII EDS]$ nios2-terminal
nios2-terminal: connected to hardware target using JTAG UART on cable
nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0
nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)
Linux