Board Features
10
AM4301 User's Guide
2.4.6
MMC Firmware Upgrade Procedure
It is important to use compatible, MMC, FWUM versions. Since all these software and hardware
solution are exchanging information, they must be in synch. Please always follow Kontron
documentation for all your upgrade.
The recommended upgrade sequence must be:, FWUM, MMC,.
MMC Firmware upgrades can be done by using IPMITOOL from the AMC Carrier or remotely on the
chassis. It has been desigh to upgrade through any IPMI interface without payload impact
2.4.7
FWUM Firmware Upgrade Procedure
It is important to use compatible, MMC, FWUM versions. Since all these software and hardware
solution are exchanging information, they must be in synch. Please always follow Kontron
documentation for all your upgrade.
The recommended upgrade sequence must be: FWUM, MMC,.
FWUM Firmware upgrade is done using IPMIFWU utility. This is a Linux utility developed by Kontron
that use the serial port of any computer to exchange with the FirmWare Upgrade Manager (FWUM)
in order to upgrade to FWUM or the MMC firmware. Then this tool doesn't need the KCS driver to run
over the Carrier AMC (it doesn't use the IPMI interfaces) but requires a serial cable hook on the AMC
module.
Type the following to perform MMC firmware upgrade
ipmifwu -p -f <file> -m -P /dev/ttyS0 -S <ENTER>
Please note that during FWUM firmware upgrade the MMC is held in reset.
2.4.7.1
Hot-Swap Process
The AM4301 AMC has the ability to be hot-swapped in and out of a AMC Carrier. The onboard MMC
manages the AMC's power-up and power-down transitions. The list below illustrates this process for
power down request.
1 Ejector latch is opened. HOT_SWAP_PB# assertion. MMC firmware detects the assertion of this signal.
2 MMC sends "Module Handle Open" event message to AMC Carrier. The corresponding M state of AMC
Carrier moves from M4-> M5.
3 AMC Carrier moves from M5 -> M6 if the SHMC grants the request and then send the FRU Control
requesting quiesced state to the AMC.
4 The firmware deasserts payload power and sends "Module Quiesced" event message to the AMC Carrier
where it transitions from M6 to M1 state.
