Kontron AM4150 U-Boot Bootloader - Manual (Page 18)

U-Boot Usage AM4150 U-Boot Bootloader
Page 18 ID 1052-5678, Rev. 1.0
P R E L I M I N A R Y
3.3 fwum Command
fwum
FUNCTION: Provides functions for managing and updating the module’s MMC
firmware
SYNTAX: fwum info|…
status|…
upgrade <address> <size>|…
rollback
where:
fwum command
info option:
displays information concerning “fwum” services
status option:
displays information concerning the status of “fwum”
services
upgrade option:
updates MMC firmware using parameters as specified
by <address> and <size>
<address> parameter: hexadecimal
<[x … ]x>
address in RAM where data is to be read from
<size> parameter: hexadecimal
<[x … ]x>
length of data in bytes to be read
rollback option:
executes manual rollback to previous firmware version
DESCRIPTION: This command can be used to:
1. Info - show information about FWUM service present on IPMI
firmware
2. Status - show current status of firmware banks
3. Upgrade - download pointed firmware into MMC and initiate firmware
upgrade procedure
4. Rollback - initiate manual firmware rollback to switch back to
previously used firmware
WARNING!
Users requiring modification to the MMC’s firmware are requested to
contact Kontron for assistance before making any changes.