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From: "Andreas Bießmann" <andreas.devel@googlemail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [U-Boot-DM] List of offending drivers
Date: Wed, 01 Aug 2012 12:11:01 +0200	[thread overview]
Message-ID: <501900B5.8000300@googlemail.com> (raw)
In-Reply-To: <201207270118.19524.marex@denx.de>

Dear Marek Vasut,

On 27.07.12 01:18, Marek Vasut wrote:
> Hello,
> 
> Check the following list, it's the list of drivers scattered (misplaced) across 
> the tree. The list is not complete and might be inaccurate. But it should give a 
> good impression of what I'm going to break soon:
> 

> board/atmel/at91rm9200ek/led.c
> board/atmel/at91sam9260ek/led.c
> board/atmel/at91sam9261ek/led.c
> board/atmel/at91sam9263ek/led.c
> board/atmel/at91sam9m10g45ek/led.c
> board/atmel/at91sam9rlek/led.c

these atmel specific led stuff is basically for very early debug
(switching a LED after relocation, another one after board init, ..). It
also provides possibility to use it in assembler code sections e.g.
lowlevel_init.

I do not really care about that cause I normally use JTAG to debug early
code. The led switching at a specific stage could be done by one of the
other generic led drivers.

Beside that, I think for debugging early stage code without JTAG the
serial line is much better than a LED which can only provide two states.
Has anyone thought about that? Has anyone tried to add some
'early_printf' feature?

Best regards

Andreas Bie?mann

      parent reply	other threads:[~2012-08-01 10:11 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26 23:18 [U-Boot] List of offending drivers Marek Vasut
2012-07-27  1:08 ` [U-Boot] [U-Boot-DM] " Graeme Russ
2012-07-27  1:11   ` Marek Vasut
2012-07-27  1:20     ` Graeme Russ
2012-07-27  1:26       ` Marek Vasut
2012-07-27  1:29         ` Graeme Russ
2012-07-27  1:37           ` Marek Vasut
2012-07-27  4:41 ` Wolfgang Denk
2012-07-27  8:42   ` Marek Vasut
2012-07-27  9:33     ` Wolfgang Denk
2012-07-31  7:50   ` Mike Frysinger
2012-07-27  6:28 ` [U-Boot] " Lukasz Majewski
2012-07-27  8:43   ` Marek Vasut
2012-07-27 14:11     ` Igor Grinberg
2012-07-27 14:30       ` Marek Vasut
2012-07-27 14:45         ` Igor Grinberg
2012-07-27 14:49           ` Marek Vasut
2012-08-01 10:11 ` Andreas Bießmann [this message]

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