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IPMI Controller: IPMI Message Protocol
10006024-04 Katana
®
752i User’s Manual
11-21
Event-generating sensors with a Threshold Event/Reading Type (0x01) initiate an event
message when a sensor reading crosses the defined threshold. The default thresholds for a
particular sensor are retrieved by sending the Zircon PM a Get Sensor Thresholds com-
mand. The system management controller must send the Zircon PM a Get Sensor Reading
command to retrieve the current sensor reading. (See the IPMI specification listed in
Table 1-2 for further details regarding these commands.)
ProcWatchdog is a Watchdog 2 Type (0x23) sensor. It generates an event when the
750GL1_WD_LATCH signal (see
Table 11-1) for a particular sensor is asserted. A timeout in
the watchdog mechanism of the Marvell system controller asserts this signal. An associated
de-assertion event occurs when the system software on the Katana
®
752i has recovered
and the 750GL1_WD_LATCH signal has been cleared.
On the Katana
®
752i, sensor number 0x70 is a System Firmware Progress sensor. This type
of sensor (0x0F) generates events to communicate Power On Self-Test (POST) and boot
failures.
Table 11-18 shows the OEM values defined for the data associated with this type of
sensor.
Table 11-18: System Firmware Progress OEM Event Data
7 Sensor Type Indicates event class or type of sensor that generated the
message
8 Sensor Number A unique number indicating the sensor that generated the
message
9 Event Dir /
Event Type
Upper bit indicates direction (0 = Assert, 1 = Deassert); Lower 7 bits
indicate type of threshold crossing or state transition
10 Event Data 0 Data for sensor and event type
11 Event Data 1 (Optional) Data for sensor and event type
12 Event Data 2 (Optional) Data for sensor and event type
13 Chk2 Checksum #2
1. Each byte has eight bits.
Description:
Event Data 0
(Byte 10):
Event Data 1
(Byte 11):
Event Data 2
(Byte 12):
Memory POST failed 0xA0
(10100000
2
)
0x01
(00000001
2
)
0xFF
(11111111
2
)
I2C POST failed 0xA0
(10100000
2
)
0x40
(01000000
2
)
0xF0
(11110000
2
)
Flash POST failed 0xA0
(10100000
2
)
0x50
(01010000
2
)
0xF0
(11110000
2
)
PCI Enumerated w/o EREADY 0xA0
(10100000
2
)
0xFE
(11111110
2
)
0x01
(00000001
2
)
Byte:
1
Field: Description: (continued)