Artesyn Embedded Technology ATCA-7490, Installation And Use Manual

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IPMI Feature Set
ATCA-7490 Installation and Use (6806800U11F )
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The above listed items have different component properties due to the different physical
implementation.
9.2.1.1 IPMI Boot-loader and Firmware Component
The IPMI firmware stores its active and backup image within one external SPI flash. A small
boot loader residing in internal Embedded Non-Volatile Memory (eNVM), is used to copy either
the active or the backup image from the external SPI flash into the internal eNVM, depending
on the boot flags indicating successful boot. The boot loader is also used as HPM.1 component;
however there is no backup image.
The boot loader maintains redundant copies of the firmware in flash. Each time the IPMI
firmware is upgraded, a redundant copy of the current IPMI firmware is made in flash. Once the
new IPMI firmware is programmed, the IPMI controller will reset itself to boot from the new
image. Also, the boot loader validates new IPMI firmware images. Provided IPMI controller can
power up successfully, the current image is made active and the previously active image is
made backup. In case power-up fails, the boot loader will automatically recover from crisis and
boots from the image.
Table 9-1 HPM.1 components
ID
Payload
cold reset
required Deferred
activation
support
Comparison
support Preparation
support Rollback/backup
support Component
name
IPMI
bootloader 1 no no yes yes no IPMC B/L
IPMI
firmware 0 yes yes yes yes supported
without backup
command IPMC F/W
FRU
information 2 yes no yes yes supported
without backup
command IPMC F/I
IAP 3 no no yes yes no IPMC IAP
BIOS 5 yes no no yes supported
without backup
command PYLD F/W
FPGA 4 yes (even
power
cycle) no no yes supported
without backup
command PYLD FPGA