On Tue, 04 Nov 2008 12:24:45 -0600 "Chris Friesen" <cfriesen@xxxxxxxxxx> wrote: > > I'm running an ATCA7101 board. This board has two 16550 ports that get > detected as ttyS4 and ttyS5. > > With a much earlier kernel (2.6.14) the serial port base speed is > correctly detected as 230400, which gives the desired 115200 when I > specify that on the kernel commandline. > > With 2.6.16 and 2.6.27 (not sure about the intervening kernels) the > serial port base speed is detected as 921600, which means that I need to > specify 460800 on the commandline to get a real speed of 115200 (as > verified by an external terminal server). > > Any ideas what could be causing this misdetection? I'm having lab > issues right now so I can't track it down, but I'll have a go at it > eventually. If this is a PCI card it may be matching against a PCI entry for a similar card with different crystals and need the right svid/sdid adding. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
