Updating U-Boot - SMART Embedded Computing MVME2500 Installation & Use Manual

Boot System
Table 6-1
Command
run
saveenv
script
scsi
scsiboot
setenv
setexpr
sf
showvar
sleep
soft_reset
source
test
tftpboot
tsi148
usb
usbboot
version
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
page
2. Ensure FLASH_WP_N in SMT Configuration Switch (S2) is in the OFF position.
114
MVME2500 Specific U-Boot Commands (continued)
Description
Run commands in an environment variable
Save environment variables to persistent storage
Run a ';' delimited, ';;' terminated list of commands
SCSI sub-system
Boot from SCSI device
Set environment variables
Set environment variable as the result of eval expression
SPI flash sub-system
Print local hushshell variables
Delay execution for some time
Soft reset the board
Run script from memory
Minimal test like /bin/sh
Boot image through network using TFTP protocol
Initialize and configure Tundra Tsi148
USB sub-system
Boot from USB device
Print monitor version
89.
Chapter 5, Memory Maps and Registers on
MVME2500 Installation and Use (6806800L01S)
Boot System