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From: wd@denx.de (Wolfgang Denk)
To: linux-arm-kernel@lists.infradead.org
Subject: [U-Boot] Where to put a large bootloader-supplied device tree on ARM ?
Date: Thu, 12 Jul 2012 23:47:43 +0200	[thread overview]
Message-ID: <20120712214743.2160B202A3F@gemini.denx.de> (raw)
In-Reply-To: <20120712233801.0411daa7@lilith>

Dear Albert ARIBAUD,

In message <20120712233801.0411daa7@lilith> you wrote:
> 
> If I'm not mistaken, yes U-Boot loads itself as high as it can, and I don't
> know about the FDT, but no, U-Boot does not "like" to load initrd "just
> below that": it loads initrd where the boot commands tell it to, and the
> boot commands are written by board developers. Nothing in U-Boot forces
> initrd to be loaded as high as possible.
> 
> That leaves the question of the FDT, though -- I'm not familiar enough
> with it (yet) to tell if it is always located just under U-Boot or if
> its placement is controllable by board commands.

You can always just set the "fdt_high" and "initrd_high" evironment
variables to restrict the positioning of initrd and FDT in RAM; see
the README for details.

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
"He was so narrow minded he could see through  a  keyhole  with  both
eyes ..."

  reply	other threads:[~2012-07-12 21:47 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-03 14:22 [PATCH v2 00/12] IRQ, GPIO SPI, I2C, etc DTC support Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers Andrew Lunn
2012-07-05  8:15   ` Andrew Lunn
2012-07-05  9:02   ` Thomas Petazzoni
2012-07-05  9:48     ` Andrew Lunn
2012-07-05 10:10       ` Thomas Petazzoni
2012-07-05 10:25         ` Andrew Lunn
2012-07-05 10:11       ` Arnaud Patard (Rtp)
2012-07-05 10:20         ` Thomas Petazzoni
2012-07-05 10:38           ` Arnaud Patard (Rtp)
2012-07-05 11:42             ` Thomas Petazzoni
2012-07-05 11:48               ` Andrew Lunn
2012-07-05 12:09                 ` Sebastian Hesselbarth
2012-07-05 12:58       ` Thomas Petazzoni
2012-07-05 13:15         ` Andrew Lunn
2012-07-05 13:28           ` Thomas Petazzoni
2012-07-05 13:33             ` Andrew Lunn
2012-07-05 13:36               ` Thomas Petazzoni
2012-07-05 12:25   ` Arnd Bergmann
2012-07-05 13:08     ` Andrew Lunn
2012-07-05 13:47       ` Arnd Bergmann
2012-07-05 13:54         ` Andrew Lunn
2012-07-05 15:47           ` Arnd Bergmann
2012-07-05 14:14       ` Sebastian Hesselbarth
2012-07-05 14:43         ` Andrew Lunn
2012-07-05 14:54         ` Arnd Bergmann
2012-07-05 15:51           ` Sebastian Hesselbarth
2012-07-05 16:30             ` Arnaud Patard (Rtp)
2012-07-05 16:16           ` Andrew Lunn
2012-07-06 20:08             ` Arnd Bergmann
2012-07-06 21:00               ` Andrew Lunn
2012-07-07  0:24                 ` Where to put a large bootloader-supplied device tree on ARM ? Mitch Bradley
2012-07-07  1:23                   ` David VomLehn (dvomlehn)
2012-07-07  1:59                     ` Mitch Bradley
2012-07-09  4:30                       ` Nicolas Pitre
2012-07-12  6:52                         ` Mitch Bradley
2012-07-12 18:16                           ` Nicolas Pitre
2012-07-12 20:34                           ` Rob Herring
2012-07-12 21:38                             ` [U-Boot] " Albert ARIBAUD
2012-07-12 21:47                               ` Wolfgang Denk [this message]
2012-07-13  1:28                                 ` Rob Herring
2012-07-13  6:45                                   ` Albert ARIBAUD
2012-07-05 18:36           ` [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers Mitch Bradley
2012-07-03 14:22 ` [PATCH v2 02/12] SPI: Refactor spi-orion to use SPI framework queue Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 03/12] spi-orion: remove uneeded spi_info Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 04/12] spi-orion: add device tree binding Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 05/12] ARM: kirkwood: use devicetree for orion-spi Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 06/12] ARM: kirkwood: use devicetree for SPI on dreamplug Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 07/12] I2C: MV64XXX: Add Device Tree support Andrew Lunn
2012-07-03 15:59   ` Florian Fainelli
2012-07-03 16:58     ` Andrew Lunn
2012-07-04 19:49       ` Florian Fainelli
2012-07-05  6:52         ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 08/12] Kirkwood: Add basic device tree support for QNAP TS219 Andrew Lunn
2012-07-03 15:47   ` Florian Fainelli
2012-07-03 17:09     ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 09/12] ARM: Kirkwood: DTify the watchdog timer Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 10/12] ATA: sata_mv: Add device tree support Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 11/12] ARM: Kirkwood: Use DT to configure SATA device Andrew Lunn
2012-07-03 14:52   ` Josh Coombs
2012-07-03 15:32     ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 12/12] Crypto: CESA: Add support for DT based instantiation Andrew Lunn
2012-07-03 15:50   ` Florian Fainelli
2012-07-03 17:03     ` Andrew Lunn

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