Artesyn COMX-P2020 BSP User Guide (July 2014) - Manual (Page 61)

U-boot Deployment
COMX-P2020 BSP User Guide (6806800L84B) 61
5.4.9 SPI Flash
COMX-P2020 has an on-module SPI socket with 4MB SPI FLASH M25P32-VMW6 installed. It
can be used to store U-boot and environment arguments. The content of SPI Flash is list as
below:
The U-boot provides the standard command "sf" to check, read, erase and write SPI Flash. This
part is not included in this document.
=> help sf
sf - SPI flash sub-system
Usage:
sf probe [bus:]cs [hz] [mode] - init flash device on given SPI bus
and chip select
sf read addr offset len - read `len' bytes starting at
`offset' to memory at `addr'
Figure 5-1 SPI Flash Content