On Wed, Oct 29, 2008 at 06:07:47PM -0700, Trent Piepho wrote:
[...]
> But, I'm using the GPIOs to bit-bang a JTAG bus in the 20-30 MHz range. The
> obvious GPIO driver is *much* too slow for that. I got less than 3 MHz, and
> your driver looks like it might be slightly slower than my initial driver.
You can implement rapid (inlined) SOC-specific versions of
gpio_{get,set}_value() functions. And they can co-exist with the
gpiolib. It is quite easy to do.
--
Anton Vorontsov
email: [EMAIL PROTECTED]
irc://irc.freenode.net/bd2
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