If anyone has interest, I have a patch against the 2.4.22-pre4/5 kernels that allows SCC1 to be a console (but still without handshaking, in accord with this discussion thread) on 8xx builds.
We have a device where SCC1 is the only port connected to a DB-9, so I had to do it. The patch is modeled after the 8260 SCC console stuff. Problem is, the boot/8xx_io/boot/simple/m8xx_tty.c is kind of messy because of an intertwined if/else and #ifdef/#else (we call it a "conditional curly brace" at our office), so I do not know that my patch is appropriate for all platforms. It works on the one device of ours that needs it... Dean Eli Brin wrote: >Dear Wolfgang, > >Thanks, but I prefer to try it on the FADS. I don't want anything "bad" to >happen to the TQM860L. The FADS is expendable... > >Thank you, >Eli Brin > > >-----Original Message----- >From: Wolfgang Denk [mailto:wd at denx.de] >Sent: Thursday, July 17, 2003 4:08 PM >To: Eli Brin >Cc: 'Steven Scholz'; 'linuxppc-embedded at lists.linuxppc.org' >Subject: Re: 8xx SCC's as uart > > >Dear Eli, > >in message <75DF04AC5ED4D511A9810090273CB4163F5DE9 at rokonet-e.rokonet.co.il> >you wrote: > > >>When I will get our target, I will be able to test the HW flow control >>of the 8xx and find a working mode with mgetty. Our development >>targets (TQM860L and FADS) don't have an SCC uart port...Perhaps I >>will try to rewire the FADS that has SCC2 connected to an IRDA port... >> >> > >You can easily connect a UART port on a free SCC on the TQM860L - all 4 SCCs >are available on the headers, and all required pins are available on >the STK8xxL starter kit board, too. You just need a RS232 line driver. > > >Best regards, > >Wolfgang Denk > >-- >Software Engineering: Embedded and Realtime Systems, Embedded Linux >Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de >Thought for the day: What if there were no hypothetical situations? > > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
