Prebuilt uClinux images for the IXDP425 HOWTO

last update: $Date: 2005-10-10 06:49:39 $
Maintained at sourceforge See the project management page or the project home page

The HOWTO shows the setup and use of the prebuilt images. Follow the steps, and use cut and paste where necesary to copy commands into a terminal window or to the shell. Assumes that the user is performing the steps on a Linux host. Can be applied to non-linux systems ( Win32), but you are on your own.

Preliminaries

Host system running Linux
Must have root access.
IXDP425 with RedBoot v1.92 Boot loader, ethernet and serial cables.

Minimum Host and Platform Setup

See the Host setup HOWTO .This lidentifies the steps necessary for a minimal host system setup to load the prebuilt images on the IXDP425.

Befor proceeding, verify that in a terminal window you can run minicom ( or other terminal program) and you can view the RedBoot prompt.

Get the images

Download the file uClinux-ixdp425-ixp400-v1.2.2-binaries.tar.gz and save in a working directory.

Untar the file using the command


 $ tar xzvf uClinux-ixdp425-ixp400-v1.2.2-binaries.tar.gz

This creates the files...

ramdisk.gz - Compressed Ramdisk image contaning the filesystem, drivers and applications
zImage - Compressed kernel image
README.uClinux-ixdp425-ixp400-v1.2.2-binaries

Load and run the images

As root, copy the images to the tftpboot directory


 $ su
  password:
 # cp ramdisk.gz zImage /tftpboot  
 # exit
 $

Use minicom (or other terminal program) connect to the IXDP425 UART0 serial port

Power on the IXDP425, The expected output from UART0 at boot is.

NOTE: If Redboot has not been initialized to support managing flash images, then the
RedBoot prompt can be delayed from showing by aproximately 30 seconds. See the
RedBoot mini HOWTO for information.

Redboot messages shown at power on

 
  RedBoot(tm) bootstrap and debug environment [ROM]
  Red Hat certified release, version 1.92 - built 23:01:46, May  2 2003

  Platform: IXDP425 Development Platform (XScale) 
  Copyright (C) 2000, 2001, 2002, Red Hat, Inc.

  RAM: 0x00000000-0x10000000, 0x0001f880-0x0ffd1000 available
  FLASH: 0x50000000 - 0x51000000, 128 blocks of 0x00020000 bytes each.
  RedBoot>

Issue the commands that are shown in white text

 
 RedBoot> load -r -v -b 0x01600000 zImage
 RedBoot> load -r -v -b 0x00800000 ramdisk.gz 
 RedBoot> go -n 0x01600000

See the expected output here