In a message from Ben Dooks on linux-arm-kernel about cpufreq, he said: > > - My patches have code to use hardware flow control to "pause" the > > serial ports during frequency transitions, so as to not confuse the > > GTA01 GSM modem (or Openmoko's gsmd). > > That is useful for designs that forgot to provide a stable UCLK to > provide UART baud clocks... all of the ones that I've had a direct > hand in working on feed back or feed in an external known (and stable) > clock.
It might be worth considering this on future designs (looking at the schematics, GTA01 uses the pin for something else, while GTA02 doesn't connect the pin at all). -- Cesar Eduardo Barros [EMAIL PROTECTED] [EMAIL PROTECTED] _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
