beautypg.com

6 updating u-boot, Boot system – Artesyn MVME2500 ECC Installation and Use (August 2014) User Manual

Page 116

background image

Boot System

MVME2500-ECC Installation and Use (6806800N30F)

116

6.6

Updating U-Boot

To update the U-Boot, place the image in the RAM (address 0x1000000 in this example) before
copying it to the SPI flash.

The following procedure will replace the image in SPI bank 0:

1. Disable SPI write-protect in FPGA register

Chapter 5, PLD Write Protect and I2C Debug

Register

.

2.

Ensure FLASH_WP_N in SMT Configuration Switch (S2) is in the "OFF" position.

run

Run commands in an environment variable

saveenv

Save environment variables to persistent storage

script

Run a ';' delimited, ';;' terminated list of commands

scsi

SCSI sub-system

scsiboot

Boot from SCSI device

setenv

Set environment variables

setexpr

Set environment variable as the result of eval expression

sf

SPI flash sub-system

showvar

Print local hushshell variables

sleep

Delay execution for some time

soft_reset

Soft reset the board

source

Run script from memory

test

Minimal test like /bin/sh

tftpboot

Boot image through network using TFTP protocol

tsi148

Initialize and configure Tundra Tsi148

usb USB

sub-system

usbboot

Boot from USB device

version

Print monitor version

Table 6-1 MVME2500-ECC Specific U-Boot Commands (continued)

Command

Description