cfi4
Driver for common flash interface (cfi) nor flash
Usage
device cfi device cfid options CFI_SUPPORT_STRATAFLASH options CFI_ARMEDANDDANGEROUS
In /boot/device.hints: hint.cfi.0.at="nexus0" hint.cfi.0.maddr=0x74000000 hint.cfi.0.msize=0x4000000
In DTS file: flash@74000000 { compatible = "cfi-flash"; reg = <0x74000000 0x4000000>; };
Overview
The cfi device driver provides a management interface to NOR flash devices supporting the Common Flash Interface (CFI) specification. Its companion device cfid provides a geom(4) disk interface to the device.
Special support for features of the Intel StrataFlash line are available with the CFI_SUPPORT_STRATAFLASH kernel option. Additional support for write-once bits to switch part of Intel StrataFlash devices to read-only can be enabled by the CFI_ARMEDANDDANGEROUS kernel option.
Releases
27 releases since FreeBSD 10.3-RELEASE; the text changed 13 times.