Supermicro X11SSM-F

This section details how to run coreboot on the Supermicro X11SSM-F.

Flashing coreboot

The flash IC MX25L12873F can be found near PCH PCIe Slot 4.

The board can be flashed externally with a SOIC test clip or probes. Since there is no diode between VCC3.3 and the flash chip, so VCC must not be connected. Instead, the flash chip is powered from VCC3.3, which is always-on (even in S5). WP# and HOLD# have pull-ups and don't need to be connected.

FTDI FT2232H and FT232H based programmers worked.

Flashing is also possible through the BMC web interface, when a valid license was entered.

BMC (IPMI)

This board has an ASPEED AST2400, which has BMC/IPMI functionality. The BMC firmware resides in a 32 MiB SOIC-16 chip in the corner of the mainboard near the PCH PCIe Slot 4. This chip is a MX25L25635F.

Disabling LAN firmware

To disable the proprietary LAN firmware, the undocumented jumper J6 can be set to 2-3.

Tested and working

GRUB2 payload with Debian testing and kernel 5.2
ECC ram (Linux' ie31200 driver works)
USB ports
Ethernet
SATA ports
RS232 external
PCIe slots
BMC (IPMI)
VGA on Aspeed
TPM on TPM expansion header

Known issues

See general issue section
LNXTHERM missing
S3 resume not working

Technology

+------------------+--------------------------------------------------+
| CPU              | Intel Kaby Lake                                  |
+------------------+--------------------------------------------------+
| PCH              | Intel C236                                       |
+------------------+--------------------------------------------------+
| Coprocessor      | Intel SPS (server version of the ME)             |
+------------------+--------------------------------------------------+
| Super I/O        | ASPEED AST2400                                   |
+------------------+--------------------------------------------------+
| Ethernet         | 2x Intel I210-AT 1 GbE                           |
|                  | 1x dedicated BMC                                 |
+------------------+--------------------------------------------------+
| PCIe slots       | 1x 3.0 x8                                        |
|                  | 1x 3.0 x8 (in x16)                               |
|                  | 2x 3.0 x4 (in x8)                                |
+------------------+--------------------------------------------------+
| USB slots        | 2x USB 2.0 (ext)                                 |
|                  | 2x USB 3.0 (ext)                                 |
|                  | 1x USB 3.0 (int)                                 |
|                  | 1x dual USB 3.0 header                           |
|                  | 2x dual USB 2.0 header                           |
+------------------+--------------------------------------------------+
| SATA slots       | 8x S-ATA III                                     |
+------------------+--------------------------------------------------+
| Other slots      | 1x RS232 (ext)                                   |
|                  | 1x RS232 header                                  |
|                  | 1x TPM header                                    |
|                  | 1x Power SMB header                              |
|                  | 5x PWM Fan connector                             |
|                  | 2x I-SGPIO                                       |
|                  | 2x S-ATA DOM Power connector                     |
|                  | 1x XDP Port                                      |
|                  | 1x External BMC I2C Header (for IPMI card)       |
|                  | 1x Chassis Intrusion Header                      |
+------------------+--------------------------------------------------+