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From: Mark Brown <broonie@opensource•wolfsonmicro.com>
To: Nicolas Pitre <nico@fluxnic•net>
Cc: microblaze-uclinux@itee•uq.edu.au,
	devicetree-discuss <devicetree-discuss@lists•ozlabs.org>,
	Jamie Lokier <jamie@shareable•org>,
	linuxppc-dev <linuxppc-dev@ozlabs•org>,
	Mitch Bradley <wmb@firmworks•com>,
	Dan Malek <ppc6dev@digitaldans•com>,
	Jeremy Kerr <jeremy.kerr@canonical•com>,
	linux-arm-kernel@lists•infradead.org,
	David Gibson <david@gibson•dropbear.id.au>
Subject: Re: Request review of device tree documentation
Date: Mon, 14 Jun 2010 21:08:01 +0100	[thread overview]
Message-ID: <20100614200800.GF10776@sirena.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.00.1006141432530.13427@xanadu.home>

On Mon, Jun 14, 2010 at 03:40:19PM -0400, Nicolas Pitre wrote:
> On Mon, 14 Jun 2010, Mitch Bradley wrote:

> > Arranging for a JTAG dongle to appear at the customer site, then 
> > getting it set up and the necessary software installed and configured 
> > on a suitable host system, typically requires several days at best, 
> > plus potentially a lot of fiddling depending on what sort of host 
> > system the customer happens to have.

> Well, if I may use the SheevaPlug as an example, the actual FT2232 chip 
> currently used in most of those USB-JTAG dongle was provided directly on 
> the board.  So you have this standard mini-B type USB connector on the 
> side of the device from which you get both a serial console and a JTAG 
> interface.  All you need is a standard USB cable, just like the one you 
> get with a MP3 player or a digital camera, so there are plenty of those 
> around.

The other thing here is of course that if JTAG is a problem serial or
other console access is likely to also be a problem - it's likely to not
be physically present and at least as painful to set up as JTAG.

  reply	other threads:[~2010-06-14 20:33 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-11 22:59 Request review of device tree documentation Grant Likely
2010-06-11 23:47 ` Dan Malek
2010-06-12  2:58   ` Benjamin Herrenschmidt
2010-06-12  4:48     ` Mitch Bradley
2010-06-12  6:53   ` Grant Likely
2010-06-12  8:19     ` Mitch Bradley
2010-06-12 10:45       ` Benjamin Herrenschmidt
2010-06-12 10:48         ` Benjamin Herrenschmidt
2010-06-12 16:30           ` Mitch Bradley
2010-06-12 22:52             ` Benjamin Herrenschmidt
2010-06-13  5:07               ` Grant Likely
2010-06-13  5:39                 ` Mitch Bradley
2010-06-13  5:59                   ` Benjamin Herrenschmidt
2010-06-13  6:45                     ` Mitch Bradley
2010-06-13  8:29                       ` Benjamin Herrenschmidt
2010-06-14  5:36                         ` Grant Likely
2010-06-14 20:00                           ` Ben Dooks
2010-06-13  8:57                       ` Benjamin Herrenschmidt
2010-06-14  5:23                     ` Grant Likely
2010-06-14  7:38                       ` Russell King - ARM Linux
2010-06-14  7:45                         ` Mitch Bradley
2010-06-14  9:25                           ` Russell King - ARM Linux
2010-06-14  9:36                             ` Benjamin Herrenschmidt
2010-06-14  9:47                               ` Russell King - ARM Linux
2010-06-14 14:29                                 ` Jamie Lokier
2010-06-14 13:51                       ` Nicolas Pitre
2010-06-14 15:35                         ` Grant Likely
2010-06-14 15:58                           ` Nicolas Pitre
2010-06-14 16:16                             ` Grant Likely
2010-06-14  5:02                   ` Grant Likely
2010-06-14 12:44                     ` David Gibson
2010-06-14 14:59                       ` Nicolas Pitre
2010-06-14 15:08                         ` Grant Likely
2010-06-14 16:02                         ` Jamie Lokier
2010-06-14 16:23                           ` Nicolas Pitre
2010-06-14 16:29                             ` Grant Likely
2010-06-14 16:28                           ` Grant Likely
2010-06-14 16:33                             ` Jamie Lokier
2010-06-14 16:58                           ` Mitch Bradley
2010-06-14 17:26                             ` Nicolas Pitre
2010-06-14 18:20                               ` Mitch Bradley
2010-06-14 19:40                                 ` Nicolas Pitre
2010-06-14 20:08                                   ` Mark Brown [this message]
2010-06-16  6:09                             ` Mike Rapoport
2010-06-16  6:13                               ` Mitch Bradley
2010-06-16  6:17                                 ` Mike Rapoport
2010-06-16  6:32                                   ` Mitch Bradley
2010-06-16  6:47                                     ` Mike Rapoport
2010-06-16  7:40                                       ` Mitch Bradley
2010-06-16  9:45                                         ` Vladimir Pantelic
2010-06-16 10:39                                         ` Mike Rapoport
2010-06-16 11:41                                           ` Jamie Lokier
2010-06-16 13:48                                             ` Jamie Bennett
2010-06-16 14:39                                           ` Nicolas Pitre
2010-06-16 17:43                                             ` Tim Bird
2010-06-16  6:52                                     ` M. Warner Losh
2010-06-18 22:12                                       ` Frank Rowand
2010-06-15  2:02                         ` David Gibson
2010-06-14 15:51                       ` M. Warner Losh
2010-06-13  5:48                 ` Benjamin Herrenschmidt
2010-06-14  5:13                   ` Grant Likely
2010-06-14  6:09                     ` Benjamin Herrenschmidt
2010-06-14  6:17                       ` Mitch Bradley
2010-06-12 22:15     ` Olof Johansson
2010-06-12 23:09       ` Grant Likely
2010-06-13  6:47         ` [microblaze-uclinux] " Edgar E. Iglesias
2010-06-12  3:00 ` Benjamin Herrenschmidt
2010-06-12  3:07   ` Benjamin Herrenschmidt
2010-06-13 13:12     ` Jeremy Kerr
2010-06-14  5:40       ` Grant Likely
2010-06-12 17:33 ` Stephan Gatzka
2010-06-12 18:19   ` Grant Likely
2010-06-14  5:54   ` Grant Likely
2010-08-05  4:43 ` David Gibson
2010-09-01 16:19   ` Grant Likely

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