cfid (4)

Leading comments

-
 Copyright (c) 2015-2016 SRI International
 All rights reserved.

 This software was developed by SRI International and the University of
 Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
 ("CTSRD"), as part of the DARPA CRASH research programme.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
    noti...

(The comments found at the beginning of the groff file "man4/cfid.4freebsd".)

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 = Qo cfi-flash Qc ; reg = <0x74000000 0x4000000>; };

DESCRIPTION

The 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 device driver first appeared in Fx 8.0 .

AUTHORS

The driver was written by An Juniper Networks with StrataFlash support by An Sam Leffler . This manual page was written by SRI International and the University of Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) (Do CTSRD Dc , ) as part of the DARPA CRASH research programme.