Matthew L. Creech wrote: > (Sorry if this is a dupe, but I think my first attempt was filtered out)
Nope, it made it. > Hi, > > I'm trying to get Linux booting on a custom board based on the MPC8313 > ERDB, but there's no output after the console is transferred. I get > the following: > > Using MPC831x RDB machine description > Linux version 2.6.29 (mlcre...@lap) (gcc version 4.3.2 (Sourcery G++ Lite > 4.3-50 > ) ) #2 PREEMPT Tue Mar 31 14:54:27 EDT 2009 > console [udbg0] enabled > > ... (normal boot output) ... > > Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled > serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A > console handover: boot [udbg0] -> real [ttyS0] > serial8250.0: ttyS1 at MMIO 0xe0004600 (irq = 17) is a 16550A > > If I boot with "console=udbg0,115200", then it gets much further along > before printing "turn off boot console udbg0". So presumably the > kernel is booting beyond this point, but my console isn't printing any > output. I traced from that last line back up the call stack to the > end of drivers/serial/8250.c:serial8250_init(), and everything seems > okay (it returns 0, and pritnk() still works fine at that point). I'm > not sure where to go from there to figure out where the problem lies. > Could someone point me in the right direction, or suggest what might > cause a console problem like this? What does your command line (boot args) when it fails? It should probably have something like "console=ttyS0,115200" in it. -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
