On Mon, Mar 16, 2009 at 03:20:54PM -0500, Hugo Villeneuve wrote: > Hi, > I'm trying to use UART2 ont he DM355, but here is the error message I have > when the kernel boots: > > ... > Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled > serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A > console [ttyS0] enabled > serial8250.0: ttyS1 at MMIO 0x1c20400 (irq = 41) is a 16550A > serial8250 serial8250.0: unable to register port at index 2 (IO0 MEM1e06000 > IRQ14): -28 > ... > > UART0 and UART1 seem to be fine. > > What could be the problem?
I've run into this as well... Go into 'make menuconfig' (or whatever) and go into 'Device Drivers/Character devices/Serial drivers' and set both 'Maximum number of 8250/16550 serial ports' and 'Number of 8250/16550 serial ports to register at runtime' to 3. That may not be sufficient to fix your problem but it is necessary. davinci_all_defconfig should be updated appropriately. I will eventually make a patch but feel free to beat me to it. :) Mark -- _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
