Re: Disabling the serial console upsets CPM UARTS

In message [ref] you wrote:

I have seen some questions in the archive about people wanting to disable the serial console but not many answers.

Maybe there ius little to answer?

We have a custom 860T product running a modified 2.4.4 kernel. The console was disabled by excluding some code in printk.c and this has resulted in strange effects with the CPM UART driver.

Why don't you just pass a "console=null" boot argument?

My questions are
1. Is there a better way to disable the serial console (or even better, allow the kernel parameter 'console=' to switch it on of off)?

Yes, of course there is. "console=null" is all you need.

2. If the console port can be changed by the 'console=' parameter, what is the purpose of the compile time configuration and selection of a console port in uart.c?

To set up a default console when no console=... boot argument is present?

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
"If people are good only because they fear punishment, and  hope  for
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