Artesyn ATCA-7365 Installation and Use (November 2014) - Manual (Page 296)

Firmware Upgrade
ATCA-7365 Installation and Use (6806800K65N) 296
is invalid or has failed. If the active firmware failed or is invalid, the Boot loader will switch to the
backup partition. When 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 it changes with every update.
10.3 BIOS/FPGA Upgrade
Both components (BIOS and FPGA) have two independent boot banks. The switching of this
boot banks is not supported by HPM commands of ATCA-736X.
Both BIOS/FPGA boot banks can be updated with HPM.1. The BIOS/FPGA upgrade is not fully
HPM.1 compatible due to the fact that payload update of this device must also be possible. This
leads to the fact that an automatic boot bank switching via the IPMC is not possible which is a
requirement for HPM.1 to activate.
Payload always has access to the active boot bank and the IPMC always has access to the
inactive boot bank. All HPM.1 commands are directed to the inactive boot bank (this includes
"get component properties"). The following figure shows the connection of the SPI busses
which are switched with "Set System Boot Options" -> Boot Bank (parameter 0x96). HPM
activate command is not supported for the BIOS/FPGA component.