MPL MCDISK-E User Manual

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U-Boot for MPL SBC
User Manual
2003 by MPL AG
1
MEH-10082-002 Rev. D
High-Tech • Made in Switzerland
U-Boot Bootloader for MPL Single Board Computer
The U-Boot is the bootloader of the MPL Single Board Computers PIP405, MIP405, MIP405T and the VCMA9. Its main
purpose is to initialize the hardware, set-up the SDRAM and boot a kernel image. But it acts also as monitor and has
build in a lot of useful functions such as memory dump, memory write etc. It allows to update the U-Boot without having
to boot an operating system.
With the permanently storable environment variables U-Boot is highly configurable, so the boot device, the initial console
interface, boot parameters etc. are configurable.
The U-Boot is an open source project. The source is available on http://u-boot.sourceforge.net/ . Please refer to its
documentation for further information.
The U-Boot is closely related to the Linux and special provision has been made to support booting of Linux kernel
images.
Features
• Power On Self Test (POST)
• Various boot device support such as:
• Ethernet
• USB
• IDE Devices
• SCSI Devices
• ATAPI Devices
• Floppy Disk
• Easy U-Boot update
• Highly configurable via permanently storable
environment variables.
• Initial console configurable as serial line or
VGA/Keyboard.
• Supports booting of compressed (gzip) kernel
images.
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Summary of Contents

Page 1 - User Manual

U-Boot for MPL SBCUser Manual 2003 by MPL AG1MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandU-Boot Bootloader for MPL Single Board ComputerThe U-

Page 2 - Table of contents

U-Boot for MPL SBCUser Manual 2003 by MPL AG10MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.3 bootd - boot default, i.e run ‘bootcmd’Abbrev

Page 3

U-Boot for MPL SBCUser Manual 2003 by MPL AG11MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.5 bootp - boot image via network using BOOTP/TF

Page 4 - 1. Introduction

U-Boot for MPL SBCUser Manual 2003 by MPL AG12MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.9 crc32 - checksum calculationThe crc32 command

Page 5

U-Boot for MPL SBCUser Manual 2003 by MPL AG13MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandBooting from a CD-ROM is slightly different, since C

Page 6 - 3. Using U-Boot

U-Boot for MPL SBCUser Manual 2003 by MPL AG14MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandYou can also use sector address to erase a portion o

Page 7

U-Boot for MPL SBCUser Manual 2003 by MPL AG15MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.20 ide - IDE sub-systemThe IDE subsystem is con

Page 8

U-Boot for MPL SBCUser Manual 2003 by MPL AG16MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.22 iminfo - print header information for applic

Page 9

U-Boot for MPL SBCUser Manual 2003 by MPL AG17MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.25 md - memory displayDisplays the memory conte

Page 10

U-Boot for MPL SBCUser Manual 2003 by MPL AG18MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.28 mw - memory write (fill)The memory write com

Page 11

U-Boot for MPL SBCUser Manual 2003 by MPL AG19MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.30 nboot - boot from NAND deviceUsed to load th

Page 12

U-Boot for MPL SBCUser Manual 2003 by MPL AG2MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandTable of contents1. INTRODUCTION...

Page 13

U-Boot for MPL SBCUser Manual 2003 by MPL AG20MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.33 printenv- print environment variablesAbbrevi

Page 14

U-Boot for MPL SBCUser Manual 2003 by MPL AG21MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandFFC50000 RO FFC60000 RO FFC70000 RO FFC80000 RO FFC9

Page 15

U-Boot for MPL SBCUser Manual 2003 by MPL AG22MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.38 saveenv - save environment variables to pers

Page 16

U-Boot for MPL SBCUser Manual 2003 by MPL AG23MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.42 tftpboot- boot image via network using TFTP

Page 17

U-Boot for MPL SBCUser Manual 2003 by MPL AG24MEH-10082-002 Rev. DHigh-Tech • Made in Switzerlandusb tree shows all the USB devices in a tree structu

Page 18

U-Boot for MPL SBCUser Manual 2003 by MPL AG25MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.44 usbboot - boot from USB deviceBooting from U

Page 19

U-Boot for MPL SBCUser Manual 2003 by MPL AG26MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.4 U-Boot Environment VariablesOne of the powerful

Page 20

U-Boot for MPL SBCUser Manual 2003 by MPL AG27MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.4.5 Automatically updated Variablesfilesizecontai

Page 21

U-Boot for MPL SBCUser Manual 2003 by MPL AG28MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5 Procedures3.5.1 Updating the bootloaderTo updat

Page 22

U-Boot for MPL SBCUser Manual 2003 by MPL AG29MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.2 Programming a kernel image into the flashThe

Page 23

U-Boot for MPL SBCUser Manual 2003 by MPL AG3MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3.45 pip405/mip405/vcma9 - Board specific Cmds...

Page 24

U-Boot for MPL SBCUser Manual 2003 by MPL AG30MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.2.3 Write the image into the flashOn MIP405/PIP

Page 25

U-Boot for MPL SBCUser Manual 2003 by MPL AG31MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.3 Console assignmentThe default console is the

Page 26

U-Boot for MPL SBCUser Manual 2003 by MPL AG32MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.3.2 Working with an USB KeyboardTo use an USB k

Page 27

U-Boot for MPL SBCUser Manual 2003 by MPL AG33MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.4 Creating bootable kernel imagesThis chapter e

Page 28

U-Boot for MPL SBCUser Manual 2003 by MPL AG34MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.5.5 Creating a new U-Boot ImageProvided that you

Page 29

U-Boot for MPL SBCUser Manual 2003 by MPL AG35MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland4. Support Information4.1 U-Boot projectThe U-Boot p

Page 30

U-Boot for MPL SBCUser Manual 2003 by MPL AG36MEH-10082-002 Rev. DHigh-Tech • Made in SwitzerlandCOPYRIGHT AND REVISION HISTORYCopyright  2003 by M

Page 31

U-Boot for MPL SBCUser Manual 2003 by MPL AG4MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland1. Introduction1.1 About this manualThis manual give

Page 32

U-Boot for MPL SBCUser Manual 2003 by MPL AG5MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland2. General Information and SpecificationsThis chapte

Page 33

U-Boot for MPL SBCUser Manual 2003 by MPL AG6MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3. Using U-BootThis section describes the generally u

Page 34

U-Boot for MPL SBCUser Manual 2003 by MPL AG7MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.2 U-Boot Command Interface3.2.1 Help systemIf you

Page 35 - 4. Support Information

U-Boot for MPL SBCUser Manual 2003 by MPL AG8MEH-10082-002 Rev. DHigh-Tech • Made in Switzerlandsleep - delay execution for some timetftpboot- boot i

Page 36

U-Boot for MPL SBCUser Manual 2003 by MPL AG9MEH-10082-002 Rev. DHigh-Tech • Made in Switzerland3.3 U-Boot CommandsFollowing chapters describes the m

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