Re: [microblaze-uclinux] 16550 uart console stays blank

[hoefle marco <marco.hoefle@xxxxxxxxxxxxx>]

Hi Michal,
thank you for your reply. The ref design worked and now the target
design works as well. I think I forgot a make clean or something.
I have no real explanation but I am happy :-)
Regards,
Marco


On Tue, 2009-07-21 at 14:51 +0200, Michal Simek wrote:
> Hi,
> 
> I have just tested it on ml505 uart16550 and latest petalinux svn-head and works well.
> Some thing to check:
> command line: console=ttyS0,11500
> 
> and /etc/inittab
> ttyS0:vt100:/bin/agetty 115200 ttyS0
> 
> Just create new ref design with uart16550, create new platform and recompile.
> 
> I did checking with fs-boot and u-boot at first to see that my cable/terminal works.
> 
> Regards,
> Michal
> 
> 
> 
> hoefle marco wrote:
> > Hello,
> > I want to evaluate the 16550 uart core. I changed the .config of the
> > kernel as described here:
> > http://developer.petalogix.com/wiki/UserGuide/AdvancedTopics/Using16550Uart
> > 
> > When booting the console stays blank but telnet works after a while. The
> > relevant /proc/kmesg output is:
> > <6>Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing
> > disabled
> > 
> > The difference is that 
> > serial8250.0: ttyS0 at MMIO 0x83e01003 (irq = 3) is a 16550A
> > 
> > is missing. The autoconf.h file has been processed correctly by the petalogix scripts as all the relevant #defines are there.
> > 
> > Has anybody a hint what I am missing?
> > Thanks,
> > Marco
> > 
> > 
> > 
> > 
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> > microblaze-uclinux@xxxxxxxxxxxxxx
> > Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
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> > 
> > 
> 

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