Kontron AM4020 IPMI Firmware - Manual (Page 13)

AM4020 IPMI Firmware
ID 1036-5671, Rev. 2.0 Page 5
P R E L I M I N A R Y
1.4 Module Management Controller Hardware
On the AM4020 processor AMC module, the MMC is implemented using the NXP LPC2368
microcontroller with 512 kB of internal flash and 56 kB of RAM.
An external 64 kB serial EEPROM chip is used for firmware private data and for FRU inventory
storage. An additional external 4 MB serial SPI flash is used for redundant firmware image stor-
age.
The MMC implements one local Keyboard Controller Style (KCS) interface with interrupt sup-
port for communication with the system side management software and the uEFI BIOS. The
IPMB-L bus is used for interconnection with the IPMC.
IPMI over LAN (IOL) and Serial Over LAN (SOL) are supported on all four Ethernet channels
of the module. SOL is only available on one Ethernet channel at a time.
The MMC provides access to various sensors which permit the monitoring of:
• System power voltages: +12V (PWR), +5V, +3.3V, +3.3V (MP)
• Temperatures: CPU, PCH and MCH die as well as airflow near AMC edge-connector
• Power Good, LAN links, IPMB link, board reset, POST code, boot error, CPU States (pro-
cessor hot, THERMTRIP, …), IPMB-L state, Health error, IPMI watchdog, etc.
2. MMC Firmware
2.1 Key Features
The following are key features of the AM4020 MMC firmware:
• Compliant with the related IPMI and PICMG® specifications
• Firmware designed and specially made for AdvancedMC environments (ATCA, µTCA)
• Supports one KCS interface with interrupt support
• Supports the local IPMB (IPMB-L) interface
• Out-of-Band management and monitoring using IPMB-L interface permits access to
sensors regardless of the module’s CPU state
• Sensor thresholds fully configurable
• Sensor names prefixed with AMC module Bay ID (A1…4, B1…4)
• Usable in µTCA slots 1…12. Sensor names for slots 9…12 are prefixed with C1…C4
• Complete IPMI watchdog functionality
• Complete FRU functionality
• Firmware can be updated in the field
• Two firmware banks implemented, firmware bank management is done by the open tool
“ipmitool” (functions “hpm” or “fwum”)
• Downloading new firmware image does not break currently running firmware activities
• Manual and automatic firmware image roll-back in case of upgrade failure
• Interoperable with other AMC, ATCA, or IPMI solutions