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| author | Boris Baykov <dev@borisbaykov.com> | 2016-06-08 12:23:54 +0200 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2016-06-08 12:23:54 +0200 |
| commit | f059078f2a2a3a06ea5326cfb2d83c959e469f9d (patch) | |
| tree | edd531c5f7aeefb04f48321fbb4516f973a260a0 /atapromise.c | |
| parent | 31969e9e13d3b138a4e42ca71692c03b0d073382 (diff) | |
| download | flashrom-f059078f2a2a3a06ea5326cfb2d83c959e469f9d.zip flashrom-f059078f2a2a3a06ea5326cfb2d83c959e469f9d.tar.gz | |
4BA: Basic support for 4-bytes addressing mode extensions
If flash chip is switched to 4-bytes addressing mode then all
read/erase/program instructions will be switched from 3-bytes mode
to 4-bytes mode. Then well known instructions like 03h (Read),
02h (Program) and 20h,52h,D8h (Erase) will become one byte longer
and accept 4-bytes address instead of 3-bytes.
This patch provides support for well known instructions in 4-bytes
addressing mode. Also here is the code to enter 4-bytes addressing
mode by execute the instruction B7h (Enter 4-bytes mode).
Patched files
-------------
chipdrivers.h
+ added functions declarations for spi4ba.c
flash.h
+ feature definitions added
Makefile
+ added spi4ba.c
Added files
-----------
spi4ba.h
+ definitions for 4-bytes addressing JEDEC commands
+ functions declarations from spi4ba.c (same as in chipdrivers.h, just to see)
spi4ba.c
+ functions for enter 4-bytes addressing mode
+ functions for read/write/erase in 4-bytes addressing mode
Signed-off-by: Boris Baykov <dev@borisbaykov.com>, Russia, Jan 2014
[clg: ported from
https://www.flashrom.org/pipermail/flashrom/2015-January/013199.html ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'atapromise.c')
0 files changed, 0 insertions, 0 deletions
