Martin Michlmayr wrote:
> With current git (and 2.6.23-rc1), nothing shows up on the serial
> console on IP32.  Ricardo Mendoza commented on this on IRC:
> 
>> I think it was that using iobase member in the plat_serial8250_port
>> struct was not working, swapping to membase gave console messages
>> but kind of stopped printing messages at some point (further in than
>> first line of C tho)
> 
> He also sent me a patch to test.  With this patch, I get serial
> console output - but only until:
> 
> | Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
> | serial8250.0: ttyS0 at MMIO 0x0 (irq = 53) is a 16550A
> | console [ttyS0] enabled
> 
> Maybe Ricardo can post his patch for comments and someone can look
> into the second issue.


The patch is the following, please ignore the rewrite of the MACE_PORT
specifications, those are not needed (I don't remember why I did that at
all).

As Martin said, the output stops on the 'console [ttyS0] enabled'
message. I don't know much about the serial code internals but I presume
something is getting trashed on the console setup.. or perhaps it's just
something really dumb like a missing call or something. Someone
enlightened in the issue can perhaps shed a light.


     Ricardo