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Table 16: Supported SPI Boot Flash
Size
Manufacturer
32 MByte
Winbond
4.12.2.
SPI Flash Update
1.
On-board SPI Flash
Initially, the EFI Shell is booted with an USB key containing the binary used to flash the on-module SPI Flash chip.
The command line is:
AfuEfix64\EtaAfuOemEfi64.efi BID7Rxxx.bin /p /b /n /k /me /x
It intentionally does not flash the 10GbE region to avoid destroying 10GbE MAC addresses
when only Bios update is required.
See further information in the BIOS package itself available on Kontron's Customer Section.
2.
External SPI Flash
To program the external SPI Flash on the carrier board with the BIOS binary, use an external programmer.
When booting from the external SPI Flash on the carrier board if the COM Express® module is exchanged for another
module of the same type, the Intel® Management Engine (ME) will fail during the next start. The Management Engine
(ME) binds itself to every module it has previously flashed which in the case of an external SPI Flash is the module
present when flashed.
To avoid this issue, after changing the COM Express® module for another module, conduct a
complete flash from the external SPI Flash device. If disconnecting and reconnecting the
same module again, this step is not necessary.
Register for Kontron's Customer Section to get access to BIOS downloads and PCN service.
4.13. System Management Bus (SMB)
The System Management Bus (SMB) is a simple 2-wire bus for low-speed system management communication. The
PCH controls the SMB. The module's SMB, routed to the COMe connector connects to the hardware controller and the
optional NVMe.
The 8-bit SMBus address uses the LSB (bit 0) for the direction of the device.
Bit0 = 0 defines the write address
Bit0 = 1 defines the read address
The following table specifies the 8-bit and 7-bit SMBus write address for all devices.
www.kontron.com
Part Number
Package Type
W25Q256JVEIQ
WSON-8 8x6 mm
COMe-bID7 User Guide Rev. 1.2
Manufact. ID
EFh
// 34
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