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| author | Samir Ibradžić <sibradzic@gmail.com> | 2012-05-15 22:58:19 +0000 |
|---|---|---|
| committer | Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> | 2012-05-15 22:58:19 +0000 |
| commit | b482c6d5c19bd60385ea7cfb7b889f683a0454e2 (patch) | |
| tree | e8b1e5c4405905162c711097d21308277170e05c /flashrom.8 | |
| parent | 901a3ba023fd64e29309637f5ad835218e1bb2ac (diff) | |
| download | ast2050-flashrom-b482c6d5c19bd60385ea7cfb7b889f683a0454e2.zip ast2050-flashrom-b482c6d5c19bd60385ea7cfb7b889f683a0454e2.tar.gz | |
ft2232_spi.c: add frequency divisor parameter
This adds an optional argument when using the ft2232_spi programmer to set
the frequency divisor. The valid values for the divisor is any even integer
between 2 and 131072.
Corresponding to flashrom svn r1537.
Signed-off-by: Samir Ibradžić <sibradzic@gmail.com>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Diffstat (limited to 'flashrom.8')
| -rw-r--r-- | flashrom.8 | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -549,6 +549,17 @@ The default model is .B 4232H and the default interface is .BR B . +.sp +All models supported by the ft2232_spi driver can configure the SPI clock rate by setting a divisor. The +expressible divisors are all even numbers between 2 and 2^17 (=131072) resulting in SPI clock frequencies of +6 MHz down to about 92 Hz for 12 MHz inputs. The default divisor is set to 2, but you can use another one by +specifying the optional +.B divisor +parameter with the +.sp +.B " flashrom \-p ft2232_spi:divisor=div" +.sp +syntax. .SS .BR "serprog " programmer A mandatory parameter specifies either a serial |
