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CFID(4FREEBSD) - Linux man page online | Special files

Driver for Common Flash Interface (CFI) NOR flash.

Chapter
January 20, 2016
CFI(4) BSD Kernel Interfaces Manual CFI(4)

NAME

cfi, cfid — driver for Common Flash Interface (CFI) NOR flash

SYNOPSIS

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>; };

DESCRIPTION

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.

SEE ALSO

led(4)

HISTORY

The cfi device driver first appeared in FreeBSD 8.0.

AUTHORS

The cfi driver was written by Juniper Networks with StrataFlash support by Sam Leffler. This manual page was written by SRI International and the University of Cam‐ bridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) (“CTSRD”), as part of the DARPA CRASH research programme.
BSD January 20, 2016 BSD
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