From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfgang Denk <wd@denx.de>
Date: Wed, 30 Oct 2013 21:03:20 +0100
Subject: [U-Boot] SPL Dfu update
In-Reply-To: <CAOf5uw=gn4=k9K2pjUA6nxocKWStJ4-GP+sb6_+HGiyW1Nv23Q@mail.gmail.com>
References: <CAOf5uwnv3YeGsOeP0mf8wig4MXwsthoCaJOCCc3Yp6Kh21q=_A@mail.gmail.com>
	<CAOf5uwkkL-KsZOQzCe7_9Fimjv+jS92ErRKHth6O0oLhM8a=JA@mail.gmail.com>
	<20131030135838.034ce78c@amdc308.digital.local>
	<52710980.6020302@denx.de>
	<CAOf5uw=1yvf8xde--7bP2y0joPhj9WcEhE8jS8Y05+WYZ_wGBQ@mail.gmail.com>
	<20131030134447.GL19303@bill-the-cat>
	<CAOf5uwkwkEqYHc__6KE=yK2TD-ouNeznUKvBeciqgha6o+ufuw@mail.gmail.com>
	<CAP9ODKq1Ezrh3g31quDA770TKS8vejPEWjBy6K2+sBoDY+pFCA@mail.gmail.com>
	<52711686.1070409@denx.de>
	<CAOf5uw=gn4=k9K2pjUA6nxocKWStJ4-GP+sb6_+HGiyW1Nv23Q@mail.gmail.com>
Message-ID: <20131030200320.D757F380C14@gemini.denx.de>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

Dear Michael Trimarchi,

In message <CAOf5uw=gn4=k9K2pjUA6nxocKWStJ4-GP+sb6_+HGiyW1Nv23Q@mail.gmail.com> you wrote:
> 
> > That's the reason I do not understand why we have to push DFU into SPL.
> > Maybe we both are missing something.
> 
> It's simple:
> 
> - first stage boot can be sent over the otg
> - using dfu to flash the u-boot.img, kernel .. etc

Why should the image "sent over the otg" be just the SPL, and not
include the real U-Boot?

> dfu is another way to upload and write second stage or what you want. I don't

Why make it so complicated and write a second part at all?  Why not
write it in a single go?


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 at denx.de
Premature optimization is the root of all evil.         -- D.E. Knuth