On Aug 1, 2005, at 10:38 PM, JohnsonCheng wrote: > Dear Daniel, > > I also meet this problem on MPC8245 with linux-2.6.12.3, and I > found it uses > LEVEL for interrupt in sandpoint.c. Do you have any idea for it?
All internal interrupts on the MPC8245/1 should be LEVEL interrupts. - kumar > -----Original Message----- > From: linuxppc-embedded-bounces at ozlabs.org > [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Daniel Ann > Sent: Monday, August 01, 2005 9:27 AM > To: Anton W?llert > Cc: linuxppc-embedded at ozlabs.org > Subject: Re: Serial console > > Thanks for your input Anton. > I'm not all that certain about sandpoint platform has its own serial > driver so I've worked with 8250.c. Anyway, I've got it working now. It > was problem with interrupt. As soon as I changed interrupt from EGDE > to LEVEL it began working. Altho I'm faced with yet another problem > with openpic but I'm digging thru it at the moment. > > BTW, I have no idea why EDGE didnt work and LEVEL does. > > Cheers, > Daniel > > On 7/30/05, Anton W?llert <a.woellert at gmail.com> wrote: > >> Daniel Ann wrote: >> >>> Hi folks, >>> >>> Having all the kernel boot up log on console means that I've done >>> some >>> part right. But why am I not getting anything from the user >>> processes >>> on the console screen ? >>> >>> Is there anything I need to do on the kernel config ? >>> >>> >> >> Hi, we've had the same problem some time ago on a tqm850l >> (mpc850). Our >> problem was, that we had registered two serial consoles in the kernel >> config or something like that. we had to disable all serial-driver >> stuff >> and enable just the platform-specific serial-console driver. we >> tracked >> this down with inserting a printk(buf) into the tty_write fs-op of >> the >> serial-port driver in drivers/char/tty_io.c. the ttyS0 was used >> but has >> taken another serial-driver than the platform specific. >> >> may this help you :) >> >> >> anton >> >> > > > -- > Daniel > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded >
