Kria SOM EEPROM Content¶

This page provides information on the EEPROM definition of Kria SOM products including SOM and its carrier cards. It follows the recommendation from IPMI EEPROM design guide and can be referenced as an example for your own carrier card IPMI definition.

SOM EEPROM Content¶

There are two versions of SOM EEPROM content because there was an update to the EEPROM layout to compress the footprint. The K26 SOM and K26 on KV260 Starter Kits use revision 1. K26 on KR260 Starter Kits and K24 on KD240 Starter Kit use revision 2.

Kria SOM (K26) and EEPROM Record Area Summary:

Version 1 (K26 production SOM, KV260 SOM)¶

Record Area	Record Type	Record Start	Record End
Common Header	IPMI Standard	0x00	0x07
Board Info Area	IPMI Standard	0x08	0x67
DC Load MultiRecord	IPMI Standard	0x68	0x79
SOM MAC Addr MultiRecord	IPMI OEM Record	0x7A	0x88
SOM Memory Config MultiRecord	IPMI OEM Record	0x9B	0xF6

Version 2 (KR260 SOM, K24 production SOM, KD240 SOM)¶

Record Area	Record Type	Record Start	Record End
Common Header	IPMI Standard, refer to table 8-1 in IPMI Spec	0x00	0x07
Board Info Area	IPMI Standard, refer to table 11-1 in IPMI Spec	0x08	0x67
DC Load MultiRecord	IPMI Standard, refer to table 16-1 and 18-4 in IPMI Spec	0x68	0x79
SOM MAC Addr MultiRecord	IPMI OEM Record, refer to table in MAC Addr MultiRecords	0x7A	0x88
SOM Memory Config MultiRecord	IPMI OEM Record, refer to table in Memory Config MultiRecord	0x89	0xE4

Mac Addr MultiRecord for K26 and K24¶

SOM EEPROM for its MAC Addr MultiRecords has 0x0A(10) in its length field and have the following MAC ID definition:

Data Description	Notes
MAC ID 0	SOM PS Primary Ethernet MAC ID

KV260 CC EEPROM Content¶

The following table shows the EEPROM record area summary for the KV260 carrier card:

Record Area	Record Type	Record Start	Record End
Common Header	IPMI Standard, refer to table 8-1 in IPMI Spec	0x00	0x07
Board Info Area	IPMI Standard, refer to table 11-1 in IPMI Spec	0x08	0x67
DC Load MultiRecord	IPMI Standard, refer to table 16-1 and 18-4 in IPMI Spec	0x68	0x79

The SCK-KV-G carrier card only supports a single SOM driven Ethernet interface. Therefore, an incremental MAC Address record is not required.

KR260 CC EEPROM Content¶

The following table shows the EEPROM record area summary for the KR260 carrier card.

Record Area	Record Type	Record Start	Record End
Common Header	IPMI Standard, refer to table 8-1 in IPMI Spec	0x00	0x07
Board Info Area	IPMI Standard, refer to table 11-1 in IPMI Spec	0x08	0x67
DC Load MultiRecord	IPMI Standard, refer to table 16-1 and 18-4 in IPMI Spec	0x68	0x79
CC MAC Addr MultiRecord	IPMI OEM Record, refer to table in MAC Addr MultiRecords	0x7A	0x94
CC EtherCAT Addr MultiRecord	IPMI OEM Record, refer to table in EtherCat Addr MultiRecords	0x95	0xA1

The SCK-KR-G carrier card has 3 additional Ethernet interface (4 total including the SOM-driven one), thus EEPROM for its MAC Addr MultiRecords has 0x16 in its length field and have the following MAC ID definition:

Data Description	Notes
MAC ID 0	SOM PS secondary Ethernet #1 MAC ID
MAC ID 1	SOM PL Ethernet #0 MAC ID
MAC ID 2	SOM PL Ethernet #1 MAC ID

KD240 CC EEPROM Content¶

The following table shows the EEPROM record area summary for the KD240 carrier card.

Record Area	Record Type	Record Start	Record End
Common Header	IPMI Standard, refer to table 8-1 in IPMI Spec	0x00	0x07
Board Info Area	IPMI Standard, refer to table 11-1 in IPMI Spec	0x08	0x67
DC Load MultiRecord	IPMI Standard, refer to table 16-1 and 18-4 in IPMI Spec	0x68	0x79
CC MAC Addr MultiRecord	IPMI OEM Record, refer to table in MAC Addr MultiRecords	0x7A	0x8E
CC EtherCAT Addr MultiRecord	IPMI OEM Record, refer to table in EtherCat Addr MultiRecords	0x8F	0x9B

The SCK-KD-G carrier card has 2 additional Ethernet interface (3 total including the SOM-driven one), thus EEPROM for its MAC Addr MultiRecords has 0x10 in its length field and have the following MAC ID definition:

Data Description	Notes
MAC ID 0	SOM PL Ethernet #0 MAC ID
MAC ID 1	SOM PL Ethernet #1 MAC ID

EEPROM Binaries and Utilities¶

The EEPROM binaries used in Kria SOM products can be found in xlnx-board-id-data repo.

There is a Yocto recipe for an example Linux init script used in Kria Starter Kits that updates MAC address by getting the information from the AMD EEPROM MAC Address records. The script is located at github.

License¶

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License.

You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.