Hi Greg,
On Fri, Nov 30, 2007 at 01:35:31AM +0100, Wolfgang Wegner wrote:
>
> > The console device can be defined on the kernel command line,
> > with something line "console=ttyS2". Of course hacking the
> > driver will also work :-)
setting the console via the command line now works as it should -
probably it was just incidentally that the _copy_romfs problem
prohibited my kernel to start at the same time I did not have the
old hack in place.
I still wonder why the first log messages are not there, but I as I now
know I have to look for CON_PRINTBUFFER, maybe I can figure this out, too.
> But still at least for the console stuff, I remember there were 2 or 3
> base address assignments missing for ports >= ttyS2 in the driver.
>
> My tree is quite messy at the moment, so I can not provide a proper patch
> for the latter, but tomorrow I could look for these lines and post them
> here.
The things are in mcfrs_init_console:
uartp = (volatile unsigned char *) (MCF_MBAR +
#if defined(CONFIG_M532x)
((mcfrs_console_port==2) ? MCFUART_BASE3 :
((mcfrs_console_port) ? MCFUART_BASE2 : MCFUART_BASE1)));
#else
(mcfrs_console_port ? MCFUART_BASE2 : MCFUART_BASE1));
#endif
and mcfrs_put_char:
uartp = (volatile unsigned char *) (MCF_MBAR +
#if defined(CONFIG_M532x)
((mcfrs_console_port==2) ? MCFUART_BASE3 :
((mcfrs_console_port) ? MCFUART_BASE2 :
MCFUART_BASE1)));
#else
(mcfrs_console_port ? MCFUART_BASE2 :
MCFUART_BASE1));
#endif
I do not have the original code here at the moment, I hope uartp is there
already. Even with my "patch", the fourth serial port is still not considered,
while the rest of mcfrs_serial has support for it.
It was a quite bad idea not to use ttyS0 for the console port anyways -
ttyS0 is simply "the standard" and everything else gives you many pitfalls.
Best regards,
Wolfgang
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