Artesyn ATCA-7470 Installation and Use (October 2014) - Manual (Page 274)

Firmware Upgrade
ATCA-7470 Installation and Use (6806800P15K) 274
11.3 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-7470.
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 buses which
are switched with "Set System Boot Options" -> Boot Bank (parameter 0x96). Description can
be found in the document "OEM Extensions for ATCA / MicroTCA Hardware Platform
Management System". HPM activate command is not supported for the BIOS/FPGA
component.