From: Clemens Koller <clemens.koller@anagramm.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] U-Boot-NG ?
Date: Wed, 04 Jul 2007 11:37:11 +0200 [thread overview]
Message-ID: <468B6A47.7030404@anagramm.de> (raw)
In-Reply-To: <20070703230932.GA11529@ld0162-tx32.am.freescale.net>
Scott Wood wrote:
> 4. Include full console functionality in the wrapper, but only for debug
> builds. A simple printf() really shouldn't be that big, anyway. This
> also eliminates the need to get console information from the environment,
> since you can hardcode it for debugging purposes.
IMHO for board bring up, the very first thing a bootloader should do is
some pin toggling! (ideally there is a LED connected to a pin...) to see if
the board at least comes out of reset and starts at our code.
And then to put out a counter, every time some initialization was finished until
a console is initialized.
I guess most of you came in contact with the Port 0x80 and beep POST codes:
http://en.wikipedia.org/wiki/Power-on_self-test
This would help all those without hardware debuggers connected to their board.
Best regards,
--
Clemens Koller
__________________________________
R&D Imaging Devices
Anagramm GmbH
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next prev parent reply other threads:[~2007-07-04 9:37 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-30 2:08 [U-Boot-Users] U-Boot-NG ? Wolfgang Denk
2007-06-30 9:40 ` Robert Schwebel
2007-06-30 22:42 ` Carsten Schlote
2007-07-01 15:39 ` Wolfgang Denk
2007-07-02 9:58 ` Carsten Schlote
2007-07-01 15:17 ` Wolfgang Denk
2007-07-02 11:47 ` Sascha Hauer
2007-07-02 13:34 ` Carsten Schlote
2007-07-02 16:47 ` Sascha Hauer
2007-07-02 17:22 ` Jerry Van Baren
2007-07-02 18:42 ` Sascha Hauer
2007-07-02 23:39 ` Wolfgang Denk
2007-07-03 0:09 ` Sascha Hauer
2007-07-03 1:46 ` Grant Likely
2007-07-03 9:44 ` Sascha Hauer
2007-07-03 15:36 ` Grant Likely
2007-07-03 20:40 ` Wolfgang Denk
2007-07-04 8:35 ` Robert Schwebel
2007-07-04 13:47 ` Wolfgang Denk
2007-07-04 15:25 ` Grant Likely
2007-07-03 22:58 ` Wolfgang Denk
2007-07-03 7:22 ` Wolfgang Denk
2007-07-03 9:02 ` Sascha Hauer
2007-07-06 11:53 ` [U-Boot-Users] 回复: " Songmao Tian
2007-07-02 18:25 ` Håvard Skinnemoen
2007-07-02 18:58 ` Sascha Hauer
2007-07-02 19:53 ` Håvard Skinnemoen
2007-07-02 19:02 ` Carsten Schlote
2007-07-02 19:26 ` Sascha Hauer
2007-07-02 20:37 ` Carsten Schlote
2007-07-02 21:56 ` Sascha Hauer
2007-07-02 19:54 ` Carsten Schlote
2007-07-03 11:02 ` Sascha Hauer
2007-07-03 15:35 ` Carsten Schlote
2007-07-03 16:52 ` Grant Likely
2007-07-03 17:18 ` Ulf Samuelsson
2007-07-03 18:01 ` Grant Likely
2007-07-03 17:58 ` Sascha Hauer
2007-07-03 18:05 ` Grant Likely
2007-07-03 18:09 ` Rune Torgersen
2007-07-03 18:17 ` Grant Likely
2007-07-03 18:43 ` Rune Torgersen
2007-07-03 18:54 ` Grant Likely
2007-07-03 19:12 ` Rune Torgersen
2007-07-03 19:21 ` Grant Likely
2007-07-03 19:27 ` Rune Torgersen
2007-07-03 19:30 ` Grant Likely
2007-07-03 19:40 ` Rune Torgersen
2007-07-03 19:59 ` Wolfgang Grandegger
2007-07-03 21:14 ` Wolfgang Denk
2007-07-03 21:13 ` Wolfgang Denk
2007-07-03 22:59 ` Grant Likely
2007-07-03 23:13 ` Wolfgang Denk
2007-07-04 5:22 ` Andrew Dyer
2007-07-04 5:34 ` Grant Likely
2007-07-04 13:38 ` Wolfgang Denk
2007-07-04 16:00 ` Andrew Dyer
2007-07-04 11:46 ` Sascha Hauer
2007-07-04 11:53 ` Stefan Roese
2007-07-04 12:01 ` Sascha Hauer
2007-07-04 13:53 ` Wolfgang Denk
2007-07-04 15:39 ` Grant Likely
2007-07-04 18:49 ` Wolfgang Denk
2007-07-04 13:51 ` Wolfgang Denk
2007-07-03 19:19 ` Jerry Van Baren
2007-07-03 21:11 ` Wolfgang Denk
2007-07-03 21:06 ` Wolfgang Denk
2007-07-03 18:43 ` Sascha Hauer
2007-07-03 20:55 ` Wolfgang Denk
2007-07-04 9:32 ` Sascha Hauer
2007-07-04 10:06 ` Stefan Roese
2007-07-04 11:28 ` Sascha Hauer
2007-07-04 11:56 ` Stefan Roese
2007-07-04 12:21 ` Robert Schwebel
2007-07-04 12:49 ` Stefan Roese
2007-07-04 14:02 ` Wolfgang Denk
2007-07-04 18:43 ` Robert Schwebel
2007-07-04 19:36 ` Wolfgang Denk
2007-07-04 20:40 ` Robert Schwebel
2007-07-04 22:25 ` Ulf Samuelsson
2007-07-05 6:04 ` Stefan Roese
2007-07-05 7:01 ` Robert Schwebel
2007-07-05 7:54 ` Ulf Samuelsson
2007-07-04 12:26 ` Sascha Hauer
2007-07-04 12:37 ` Stefan Roese
2007-07-04 13:09 ` Carsten Schlote
2007-07-04 14:06 ` Wolfgang Denk
2007-07-04 14:37 ` Stefan Roese
2007-07-04 13:58 ` Wolfgang Denk
2007-07-04 15:34 ` Grant Likely
2007-07-04 12:48 ` [U-Boot-Users] U-Boot 2.0 - How to proceed...? (was RE: U-Boot-NG ?) Carsten Schlote
2007-07-04 14:17 ` Wolfgang Denk
2007-07-04 13:34 ` [U-Boot-Users] U-Boot-NG ? Wolfgang Denk
2007-07-04 14:11 ` Sascha Hauer
2007-07-03 20:48 ` Wolfgang Denk
2007-07-03 22:31 ` Sascha Hauer
2007-07-03 22:55 ` Wolfgang Denk
2007-07-03 23:09 ` Scott Wood
2007-07-04 9:37 ` Clemens Koller [this message]
2007-07-03 17:30 ` Sascha Hauer
2007-07-03 18:03 ` Grant Likely
2007-07-04 14:16 ` Wolfgang Denk
2007-07-04 14:43 ` Sascha Hauer
2007-07-04 14:56 ` Wolfgang Denk
2007-07-06 6:39 ` [U-Boot-Users] 回复: " Songmao Tian
2007-07-06 11:46 ` [U-Boot-Users] ????: " Sascha Hauer
2007-07-06 13:09 ` Songmao Tian
2007-07-06 13:27 ` Sascha Hauer
2007-07-06 14:32 ` Wolfgang Denk
2007-07-06 14:53 ` Songmao Tian
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