Mark, Gave this a spin on my SS20 today, have the console on the serial port. No problems seen. You will need to provide a signed-off-by line to get it accepted upstream, see Documentation/SubmittingPatches. ffd60050: ttyS0 at MMIO 0xf1100000 (irq = 44) is a zs (ESCC) Console: ttyS0 (SunZilog zs0) ffd60050: ttyS1 at MMIO 0xf1100004 (irq = 44) is a zs (ESCC) ffd60130: Keyboard at MMIO 0xf1000000 (irq = 44) is a zs ffd60130: Mouse at MMIO 0xf1000004 (irq = 44) is a zs Cheers, Martin Habets Ack-by: Martin Habets <errandir_news@xxxxxxxxxxxxxxxxx> On Sun, Apr 29, 2007 at 11:00:29PM +0100, Mark Fortescue wrote: > I have altered the patch as advised and I have attached it to prevent my > email client from making a mess of it. > > The attached patch changes the interrupt enable sequence for the sunzilog > driver so that interrupts are not enabled untill after the interrupt > handler has been installed. If this is not done, some SS1 and SS2 sun4c > systems panic on un-handled interrupt before the handler gets installed > preventing boot. > > It also adds in support for the ESCC version of the zilog chips. The ESCC > detection works but the FIFO enable may cause issues with modem and > receive character status. My interpretation of the SCC manual and the code > is that it sould be OK. > > --- > > Regards > Mark Fortescue. - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html