Commit Graph

4 Commits

Author SHA1 Message Date
Ian Lepore
c3c04faa3a ONFI parameters are little-endian, hence we must take care to convert them
to native endianness.  We must also pay attention to unaligned accesses.

Copy the interesting parameters to a new struct so the rest of the code can
forget about these problems.

Submitted by:	Kristof Provost <kristof@sigsegv.be> (cleanup) and me (orig).
2013-11-15 23:41:32 +00:00
Ian Lepore
1b45c6cd53 Search for and validate the ONFI params as specified in the standard.
The ONFI spec states that at least two bytes of the signature ("ONFI")
must be present, and the CRC must be correct to have a valid parameter
page.  If the page is not valid there are at least two backup pages where
the data can also be found.

Submitted by:	Kristof Provost <kristof@sigsegv.be> (cleanup) and me (orig).
2013-11-15 23:37:33 +00:00
Ruslan Bukin
8a57d93d59 o Add ONFI signature check.
o Add Micron chip found in Freescale Vybrid Family
  Phytec COSMIC board.

Approved by:	cognet (mentor)
2013-11-09 18:46:11 +00:00
Grzegorz Bernacki
7f725bcd5c Import work done under project/nand (@235533) into head.
The NAND Flash environment consists of several distinct components:
  - NAND framework (drivers harness for NAND controllers and NAND chips)
  - NAND simulator (NANDsim)
  - NAND file system (NAND FS)
  - Companion tools and utilities
  - Documentation (manual pages)

This work is still experimental. Please use with caution.

Obtained from: Semihalf
Supported by:  FreeBSD Foundation, Juniper Networks
2012-05-17 10:11:18 +00:00