Re: u-boot debug, was: Re: U-boot on RPI3, sees disk but won't boot it

On 2022-Sep-25, at 12:34, bob prohaska <fbsd@www.zefox.net> wrote:
> 
> . . .
> 
> IIRC I did try replacing the Sabrent enclosure with the Startech
> enclosure, which worked and seemed to implicate the Sabrent as
> the culprit.  Thus my interest in u-boot debug information.  

Looking at https://u-boot.readthedocs.io/en/latest/develop/logging.html
it appears the logging availability has to be enabled at compile time:

QUOTE
Enabling logging

The following options are used to enable logging
at compile time:

	• CONFIG_LOG - Enables the logging system
	• CONFIG_LOG_MAX_LEVEL - Max log level to
		build (anything higher is compiled out)
	• CONFIG_LOG_CONSOLE - Enable writing log
		records to the console

If CONFIG_LOG is not set, then no logging will be available.

The above have SPL and TPL versions also, e.g.
CONFIG_SPL_LOG_MAX_LEVEL and CONFIG_TPL_LOG_MAX_LEVEL.

If logging is disabled, the default behaviour is to output
any message at level LOGL_INFO and below. If logging is
disabled and DEBUG is defined (at the very top of a C file)
then any message at LOGL_DEBUG will be written.
END QUOTE

(There is more about "Using DEBUG" vs. LOG_DEBUG and the like that
I'll not quote.)


===
Mark Millard
marklmi at yahoo.com