On Wed, 8 Aug 2007, Oncaphillis wrote: > Greetings, > > I'm trying to compile a 2.6.2x kernel on a Linkstation/KuroBox HG/ppc > following instructions given under > http://www.kurobox.com/mwiki/index.php/Kurobox_support_in_stock_2.6_kernels
Wow, congratulations! Not too many endevour into this land, and even fewer succeed:-) You'd probably be better off asking this on linuxppc-dev, but anyway... > and get weired settings and errors from the serial device (UART 16550A). > > Under the 2.4.17 kernel provided by the Kurobox manufacturer it gets IRQS in > the range of 137/138 under 2.6.22 for the linkstation it gets IRQS 17/18 and > the serial device behaves fishy That interrupt numbers are different as under 2.4 is correct, however, I get 16 and 17 for ttyS0 and ttyS1 on a kuroboxHG, are you sure you're getting 17 and 18? > communication errors > > "to much work in IRQ 16" And here you get IRQ 16, which indeed should be ttyS0. And ttyS0 is connected to the power-management microcontroller (AVR). Wait, what userspace are you running? Have you swapped ttyS0 and ttyS1 everywhere? in /etc/inittab for example? Besides, if you are running any vendor provided (or community) tools to handle the AVR - they use ttyS1 by default, as it was under 2.4 ans under "traditional" 2.6, whereas the 2.6 mainline kernel for kurobox/linkstation uses the traditional for these CPUs port numbering. I think this is your problem. Some user-space programme(s) are accessing wrong tty. Thanks Guennadi --- Guennadi Liakhovetski - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
