Kontron AM4150 IPMI Firmware - Manual (Page 7)

AM4150 IPMI Firmware
ID 1052-5679, Rev. 1.0 Page 7
P R E L I M I N A R Y
1.4 Module Management Controller Hardware
On the AM4150, the MMC is implemented using an NXP® ARM7 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. Furthermore, an external 4 MB MMC firmware flash is used for additional firmware
image storage.
The MMC implements one local Keyboard Controller Style (KCS) interface with interrupt sup-
port for communication with the system side management software and the U-Boot bootloader.
The IPMB-L bus is used for interconnection with the IPMC.
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, board and airflow near AMC Card-edge connector
• Power Good, LAN links, board reset, IPMB-L state, Health error, IPMI watchdog, firm-
ware update/rollback, etc.
2. MMC Firmware
2.1 Key Features
The following are key features of the AM4150 MMC firmware:
• Compliant with the related IPMI and PICMG® specifications
• Firmware designed and specially made for AdvancedMC environments (ATCA, µTCA)
• Support for one KCS interface with interrupt support
• Support for 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
• Firmware image management may be 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
• U-Boot fail-over control for automatic U-Boot firmware bank switching after having
detected a non-working U-Boot
• OEM command for U-Boot firmware bank (SPI boot flash) selection