> > On Jun 13, 2006, at 11:48 AM, Alex Zeffertt wrote: > > > > > Hi list, > > > > > > I'm trying to boot a linux-2.6.11 kernel on a MPC83xx based > > board. > > > Through > > > some experimentation I have found I need > > "console=uart,io,0xfe004500" > > > in the kernel command line in order to get any output over > > the serial > > > port. > > > > > > Half way through initialisation the kernel appears to swap from its > > > "early" > > > 8250 serial driver to a "full" 8250 serial driver. At this > > point it > > > prints "No ttyS device at I/O port 0xfe004500 for console" > > and there > > > is no further output. > > > > > > Does anyone have any idea what I may be doing wrong? > > > > > > BTW, here's the output that I do get. > > > > Alex, where did you get this 2.6.11 kernel? The public tree > > didn't have support for 83xx in 2.6.11. I'd suggest looking > > at using something newer like 2.6.16 and see if you have the > > same issue. > > I suspect he got from the same place I did, freescales LTIB dev. env. > which has been patched to support 832x. I am having the same problem as he > has, any info on what the problem might be would be great. > > Also, if anyone has any info on when these patches will be sent upstream, I > sure would like to hear about it. > > Jocke
Hi Joakim, Same here -- go into arch/ppc/platforms/83xx and edit file mpc83xx_sys.c. If you are using the 8323e cpu, then you need to make sure that file has code to support the 8323E. Mine didn't, so I got no platform devices initialized (no serial port, no Eth devs). I added a block of code to support the 8323E (set mask to 0xffff0000 and "value" to 0x80620000, then the device list for the 8323E). Use existing code there as a guide, it was not difficult once I figured out that this was the problem. If you are using a newer LTIB release than me, perhaps yours is fixed. The one I have is from 3/15/06. Anyway, this works fine for me and addresses the problem of the platform devs not getting initialized. Chuck
