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Cleanly validate ICH SPI preopcodes

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The code should work on Linux/*BSD/MacOSX and relies on the serial code
implementation in serial.c. Support for additional platforms (Windows)
will have to be added to serial.c for this to work. For tests without a
Bus Pirate (or with non-functional serial code) it is possible to
#define FAKE_COMMUNICATION in buspirate_spi.c.
Thanks to Sean Nelson for the SPI mode settings code. I tweaked it a bit
to make configuration from a commandline easier should anybody want that
feature.

Tested-by: Sean Nelson <audiohacked@gmail.com>

Corresponding to flashrom svn r772.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Sean Nelson <audiohacked@gmail.com>
This commit is contained in:
Carl-Daniel Hailfinger
2009-11-24 00:20:03 +00:00
parent e51ea10a88
commit 5cca01f394
6 changed files with 413 additions and 1 deletions
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spi.h
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@ -106,6 +106,7 @@
#define JEDEC_BYTE_PROGRAM_INSIZE 0x00
/* Error codes */
#define SPI_GENERIC_ERROR -1
#define SPI_INVALID_OPCODE -2
#define SPI_INVALID_ADDRESS -3
#define SPI_INVALID_LENGTH -4