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Setting up IXP1200 Linux. Fei Chen CAPSL Electrical & Computer Engineering University of Delaware. System Overview. Hardware Needed. IXP1200 Evaluation System Linux PC running Red Hat 6.2+ for building the Linux Kernel NT 4.0 SP5+ for developer workbench to develop microcode for IXP1200

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setting up ixp1200 linux
Setting up IXP1200 Linux

Fei Chen

CAPSL

Electrical & Computer Engineering

University of Delaware

hardware needed
Hardware Needed
  • IXP1200 Evaluation System
  • Linux PC running Red Hat 6.2+ for building the Linux Kernel
  • NT 4.0 SP5+ for developer workbench to develop microcode for IXP1200
  • Serial Cable, Ethernet hub etc.
software needed
Software needed
  • Red Hat Linux 6.2
  • Cross Hosted Big Endian Arm toolchain for Linux
  • IXP12DE Software Development Tools
linux boot up sequence on ixp1200
Linux Boot up Sequence on IXP1200
  • Load boot up image in flash;
  • Download "zImage" (Linux kernel image) & "ramdisk_img.gz" (Ramdisk for Linux) to DRAM from Linux PC via tftp;
  • Boot up Linux image in DRAM;
  • Login and reconfigure the IP address and NFS client
step 1 burning cygmon into flash
Step 1: Burning Cygmon into Flash
  • Files needed:
    • FUtil.exe - utility to burn flash on ixp1200 eval system
    • flash.img - flash image which includes cygmon
  • Specify FlashUtil as the default boot region with "BootMgr" of IXP1200 and then reboot it;
  • Futil Host program (FUtil.exe) can be run on a Windows NT PC, which is connected with IXP1200 board by a serial cable, and update the flash image with "flash.img".
step 2 configure cygmon
Step 2: Configure Cygmon
  • Specify Cygmon as the default boot region with "BootMgr" of IXP1200 and then reboot the eval system;
  • At the cygmon prompt, setup a static IP address for the eval system and also the IP address of the remote system (the Linux PC with tftp service);
  • After the tftp server on remote system is ready, type command "gl" to download the Linux kernel and ramdisk, and then boot linux
step 3 using minicom as virtual terminal
Step 3: Using Minicom as Virtual Terminal
  • Delete the modem device with "rm -f /dev/modem"
  • Create a soft link between the modem device and ttyS0 with"ln -s /dev/ttyS0 /dev/modem
  • Run minicom and setup serial port for 9600 8N1 and no flow control
  • Using Minicom scripts can accelerate initialization procedures
step 4 setup tftp server
Step 4: Setup Tftp Server
  • Install the tftp-0.17-14 and tftp-server-0.17-14 packages from the Red Hat 7.2 CD2
  • Edit the tftp file under /etc/xinetd.d to specify the following value: server_args = -S / and rerun "xinetd"
  • Do a mkdir /tftpboot and chmod 777 /tftpboot
  • Copy "zImage" and "ramdisk_img.gz" to /tftpboot
step 5 setting up nfs server
Step 5: Setting up NFS server
  • Check to see whether the nfs-utils-0.3.1-12 package is already installed on the workstation and install it if necessary.
  • In the file /etc/exports add one line:ip-addr: /nfsdir * (rw)
  • Run exportfs -a to make your changes take effect
step 6 setting up nfs client
Step 6: Setting up NFS client
  • Make sure portmap is started on IXP1200
  • mount -t nfs server-ip-or-name:/nfsdir /nfs
step 7 using cross hosted toolchain
Step 7: Using Cross Hosted Toolchain
  • Add to your path /usr/local/armbe/bin
  • Use ixp1200_linux.tar.gz to compile and install armtoolchain
  • Compile your code likearmv4b-unknown-linux-gcc -mbig-endian hello.c -o hello
  • -EB should be passed to the linker likearmv4b-unknown-linux-ld -EB hello.o foo.o -o hello
step 8 using gdb remotely
Step 8: Using GDB Remotely
  • Download gdb from ftp://ftp.netwinder.org/users/u/urnaik/gdband replace the /usr/bin/gdb with this one
  • Compile your code with -g option
  • Ftp (or nfs) the binary into the ramdisk of the IXP1200
  • On IXP1200 type: gdbserver :
  • On the host type: gdb and then on the gdb prompt type: target remote :
using the microcode workbench
Using the Microcode Workbench
  • On the IXP1200 running Linux, either run DNS or add the name of the NT host to the /etc/hosts file
  • Load ue.o (microengine module) and start rs_udebug daemon on IXP1200 cardinsmod /lib/modules/ue.ors_udebug &
  • Start the workbench on NT workstation and connect to Linux target by specifying its IP address.
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