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Boot System
MVME2500 Installation and Use (6806800L01H)
110
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 PLD Write Protect and I2C Debug Register.
2. Ensure FLASH_WP_N in SMT Configuration Switch (S2) is in the "OFF" position.
3. Select SPI flash # 0:
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 Specific U-Boot Commands (continued)
Command Description