In message <004B1D7A5257174C9044A1B7BD0E60ED0178CC4F at ratatosk.combitechsystems.com> you wrote: > > I'm messing with a mpc823e based board trying to enable the SCC3 UART. I'm > using the 2.4.25 denx linux_ppc kernel and I've got SMC1 for console and SMC2 > up and running but I'm in desperate need of another rs232 port (which is on > SCC3 on my board). > Reading quite a lot of old posts on this mailing list got me confused whether > the SCCx UART support in the kernel is ready to be used on 8xx or if there > will take a large amount of hacking to get things going (reading the header > of 8xx_io/uart.c got me > wondering even more).
All UARTS (up to 2 x SMC + 4 x SCC, depending on CPU model) can be used with our tree, including hardware handshake. > I've read some posts saying that Linux don't init other uart ports than the > console port and that is the potential problem here, but it is unclear if > this statement is true or not. I can also add to the problem description that > my SMC2 port works fine f > or writing, but reading just hangs in the read() call. So, can anyone confirm > any status on the SMCx and SCCx UART drivers for 2.4? Works fine on all board supported by us. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de The C-shell doesn't parse. It adhoculates. - Casper.Dik at Holland.Sun.COM in <3ol96k$b2j at engnews2.Eng.Sun.COM>