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Add the ability to set Bus Pirate SPI speed via the command line

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Example usage:
flashrom -p buspiratespi:spispeed=2.6MHz,dev=/dev/foo
flashrom -p buspiratespi:dev=/dev/foo,spispeed=2.6M

Refactor programmer option parsing (this allows cleanups in other
programmers as well).

Increase SPI read size from 8 to 12 bytes (current single-transaction
limit of the Bus Pirate raw SPI protocol).

Add Bus Pirate to the list of programmers supporting 4 byte RDID.

Add Bus Pirate syntax to the man page.

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

Corresponding to flashrom svn r776.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Sean Nelson <audiohacked@gmail.com>
This commit is contained in:
Carl-Daniel Hailfinger
2009-11-24 18:27:10 +00:00
parent d70b09ca13
commit d5b28fae1d
5 changed files with 108 additions and 20 deletions
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12
flashrom.8
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@ -152,6 +152,8 @@ Specify the programmer device. Currently supported are:
.sp
.BR "* serprog" " (for flash ROMs attached to Urja's AVR programmer)"
.sp
.BR "* buspiratespi" " (for flash ROMs attached to a Bus Pirate)"
.sp
The dummy programmer has an optional parameter specifying the bus types it
should support. For that you have to use the
.B "flashrom -p dummy:type"
@ -219,6 +221,16 @@ syntax and for IP, you have to use
instead. More information about serprog is available in serprog-protocol.txt in
the source distribution.
.sp
The buspiratespi programmer has a required dev parameter specifying the Bus
Pirate device node and an optional spispeed parameter specifying the frequency
of the SPI bus. The parameter delimiter is a comma. Syntax is
.B "flashrom -p buspiratespi:dev=/dev/device,spispeed=frequency"
where
.B frequency
can be any of
.B 30k 125k 250k 1M 2M 2.6M 4M 8M
(in Hz).
.sp
Support for some programmers can be disabled at compile time.
.B "flashrom -h"
lists all supported programmers.