public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: DaveKucharczyk <david.kucharczyk@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] No console output once kernel starts loading.
Date: Wed, 11 Mar 2015 10:29:06 -0700 (MST)	[thread overview]
Message-ID: <1426094946383-208246.post@n7.nabble.com> (raw)
In-Reply-To: <1425509212145-207674.post@n7.nabble.com>

To update anyone who comes across this issue...

Yes, a stripped version of the dts, like above, is all that is necessary to
see console output. You just have to setup your uart pads correctly in
imx53.dtsi.

My main issue was the uart setting in .config. 

I had earlyprintk turned on and the uart port number is one based. It
defaulted to port 1 while ours is port 2 (mxc1).
 
This zero based/one based inconsistency has bit me more than once. ;-)

Initially I thought it was a machine type mismatch, but that proved to be
wrong. 

As a matter of fact I stripped all machine type references from u-boot and
kernel and it works fine.

My question is: Is it ok to remove machine type when using a newer version
of u-boot and linux?

The dtb has a model description, but no other handshake to validate the
system between u-boot and linux.


 



--
View this message in context: http://u-boot.10912.n7.nabble.com/No-console-output-once-kernel-starts-loading-tp207674p208246.html
Sent from the U-Boot mailing list archive at Nabble.com.

  reply	other threads:[~2015-03-11 17:29 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-04 22:46 [U-Boot] No console output once kernel starts loading DaveKucharczyk
2015-03-11 17:29 ` DaveKucharczyk [this message]
2015-03-11 17:41   ` Fabio Estevam
2015-03-16 11:10 ` Graeme Russ

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1426094946383-208246.post@n7.nabble.com \
    --to=david.kucharczyk@gmail.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox