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From: Wolfgang Denk <wd@denx.de>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: Pavel Machek <pavel@denx.de>,
	"Fernandes, Joel A" <joelagnel@ti.com>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	linux-kbuild@vger.kernel.org, tony@atomide.com,
	Grant Likely <grant.likely@secretlab.ca>,
	u-boot@lists.denx.de, "Rini, Tom" <trini@ti.com>,
	Grant Likely <glikely@secretlab.ca>,
	Linux OMAP List <linux-omap@vger.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@lists.infradead.org>
Subject: Re: [U-Boot] [RFC] Kbuild support for ARM FIT images
Date: Mon, 18 Mar 2013 20:57:25 +0100	[thread overview]
Message-ID: <20130318195725.CA8132014B1@gemini.denx.de> (raw)
In-Reply-To: <51475997.2060008@wwwdotorg.org>

Dear Stephen,

In message <51475997.2060008@wwwdotorg.org> you wrote:
>
> Raw zImage /is/ the useful format that should be adopted.

This "one size fits all" approch does fit everywhere.  There are a
number of users (including _big_ commercial ones, with _large_ numebrs
of systems in the field) that have simple requirements like:

- how can I find out if the image I just loaded to RAM in OK (OK
  maning some checksum is correct, or some crypto-key could be
  verified, or ...) ?

- how can I find out which version of image is installed on this
  device in the flash?  Can I print something like an ID string, or a
  build timestamp, etc?

etc. etc.

zImage may work well in many cases, but there are also many cases
where in image format that allows for additional meta-data is
mandatory.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Minds are like parachutes - they only function when open.

  reply	other threads:[~2013-03-18 19:57 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-21  1:37 [RFC] Kbuild support for ARM FIT images Joel A Fernandes
2013-02-21  4:26 ` Stephen Warren
2013-02-21  7:15   ` Joel A Fernandes
2013-02-21 18:58     ` Stephen Warren
2013-02-21 19:18       ` Tom Rini
2013-02-21 13:29   ` Tom Rini
2013-02-21 19:03     ` Stephen Warren
2013-02-21 10:37 ` Russell King - ARM Linux
2013-02-21 13:20   ` Tom Rini
2013-02-21 13:46     ` Russell King - ARM Linux
2013-02-21 14:08       ` Tom Rini
2013-02-21 14:37         ` Russell King - ARM Linux
2013-02-21 14:46           ` Tom Rini
2013-02-21 17:25         ` [U-Boot] " Nicolas Pitre
2013-02-21 17:40           ` Tom Rini
2013-02-21 19:21             ` [U-Boot] " Nicolas Pitre
2013-02-21 19:37               ` Stephen Warren
2013-02-21 19:57                 ` Wolfgang Denk
2013-02-21 20:05                   ` Stephen Warren
2013-02-21 20:18                     ` Wolfgang Denk
2013-02-21 21:18                 ` Nicolas Pitre
2013-02-22  0:10                   ` Stephen Warren
2013-02-22  0:39                     ` Russell King - ARM Linux
2013-02-22 20:48                       ` Stephen Warren
2013-02-21 18:27           ` Jason Gunthorpe
2013-02-21 19:08             ` Russell King - ARM Linux
2013-02-21 20:15               ` Jason Gunthorpe
2013-02-21 19:57             ` Nicolas Pitre
2013-02-21 21:14               ` Jason Gunthorpe
2013-02-21 22:05                 ` Nicolas Pitre
2013-02-21 23:11                   ` Jason Gunthorpe
2013-02-21 23:50                     ` Stephen Warren
2013-02-22  0:19                     ` Scott Wood
2013-02-22  2:39                       ` [U-Boot] " Jason Gunthorpe
2013-02-22  0:27                     ` Russell King - ARM Linux
2013-02-22  0:41                       ` Russell King - ARM Linux
2013-02-22  2:11                       ` Jason Gunthorpe
2013-02-21 23:18                   ` Wolfgang Denk
2013-02-21 23:28                     ` Jason Gunthorpe
2013-02-22  0:19                       ` Rob Herring
2013-02-22  2:22                         ` [U-Boot] " Jason Gunthorpe
2013-02-22  3:32                           ` Rob Herring
2013-02-22  7:56                           ` Jason Kridner
2013-02-22 17:43                             ` Jason Gunthorpe
2013-02-22  6:55                       ` Wolfgang Denk
2013-02-21 23:45                   ` Stephen Warren
2013-02-22  0:29                     ` Russell King - ARM Linux
2013-02-21 20:56             ` Peter Korsgaard
2013-02-21 17:37       ` Wolfgang Denk
2013-02-21 18:33         ` Russell King - ARM Linux
2013-02-23  8:38   ` Joel A Fernandes
2013-02-22 16:00 ` Olof Johansson
2013-03-18 16:36   ` Pavel Machek
2013-03-18 16:44     ` Russell King - ARM Linux
2013-03-18 17:49       ` Pavel Machek
2013-03-18 17:57         ` Russell King - ARM Linux
2013-03-18 18:04           ` Pavel Machek
2013-03-18 18:14             ` [U-Boot] " Stephen Warren
2013-03-18 19:57               ` Wolfgang Denk [this message]
2013-03-18 19:51           ` Wolfgang Denk
2013-03-18 18:29     ` [U-Boot] " Tom Rini

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