2 ipmc upgrade, Figure 10-1, Ipmc component elements – Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (June 2014) User Manual
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Firmware Upgrade
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54F)
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10.2 IPMC Upgrade
The IPMC component is fully HPM.1 compatible and contains three elements as shown in the
figure below.
There are images for the boot loader and the firmware. There is also a combined image
containing the boot loader and the firmware. The Boot loader update should only be done if it's
required.
The boot loader does not perform any upgrade action. The boot loader is able to boot either of
two redundant copies of the firmware in the flash depending on the current value of the special
partition status byte that is stored in the internal IPMC EEPROM. The boot loader can fall back
to the backup copy by booting the alternate partition.
The boot loader manages both; active and backup firmware partitions. It is responsible for
detecting if the active firmware is invalid or has failed. In either case, the Boot loader will switch
to the backup partition. After switching, the partitions change their roles. Switching of the
partitions also takes place when the firmware is upgraded and activated using the HPM.1
upgrade procedure.
The firmware image is the regular firmware and change with every update.
Figure 10-1 IPMC Component Elements