Every year at the Embedded Systems Conference I would complain to the
Xilinix folks about the 16550 not being free.  This year I complained &
they told me that even though it is listed as a purchased core when you
go to "buy" it you get it for free.  This was just prior to the 10.x
release.

Marc W Howard=20

-----Original Message-----
From:=20
linuxppc-embedded-bounces+marc.howard=3Dkla-tencor.com@ozlabs.or

g [mailto:linuxppc-embedded-bounces+marc.howard=3Dkla->
tencor.com@ozlabs.org] On Behalf Of John Linn

Sent: Wednesday, June 04, 2008 2:23 PM
To: Peter Korsgaard; swamydp
Cc: linuxppc-embedded@ozlabs.org
Subject: RE: linux 2.6 hangs at __delay function on Viretx 4 board
=20
Hi Peter,
=20
Yes you need to enable UARTLITE as the console in the kernel
configuration.
=20
You have the command line syntax, ttyUL0, correct.
=20
They have now changed the UART 16550 to be a free core in the EDK, not
sure which version of the EDK that happened.
=20
Thanks,
John
=20
-----Original Message-----
From: linuxppc-embedded-bounces+john.linn=3Dxilinx.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+john.linn=3Dxilinx.com@ozlabs.org] =

On

Behalf Of Peter Korsgaard
Sent: Wednesday, June 04, 2008 2:56 AM
To: swamydp
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: linux 2.6 hangs at __delay function on Viretx 4 board
=20

quoted

quoted

quoted

quoted

quoted

"swamydp" =3D=3D swamydp  [off-list ref] writes:

=20
 swamydp> Hi John
=20
 swamydp> I am using UARTLITE as serial console. I do not have license
 swamydp> for UART 16550.  I have enabled the drivers for uartlite in
 swamydp> menuconfig while configuring the kernel. I have tested all
 swamydp> combinations for the kernel command line - tty0, ttyUL0,
 swamydp> ttyl0, ttyS0 but could not get uartlite to output kernel
 swamydp> printk messages.
=20
Correct syntax is console=3DttyUL0
=20
 swamydp> Since I am using uartlite , the following settings are
 swamydp> turned off in menuconfig
=20
 swamydp> CONFIG_SERIAL_8250=3Dn
 swamydp> CONFIG_SERIAL_8250_CONSOLE=3Dn
=20
Do you have console on uartlite (CONFIG_SERIAL_UARTLITE_CONSOLE)
enabled?
=20
--=20
Bye, Peter Korsgaard
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