From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>,
Jason Cooper <jason@lakedaemon.net>,
Grant Likely <grant.likely@secretlab.ca>,
Rob Herring <rob.herring@calxeda.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
devicetree-discuss@lists.ozlabs.org,
linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Olof Johansson <olof@lixom.net>, Nicolas Pitre <nico@fluxnic.net>,
Lior Amsalem <alior@marvell.com>,
Maen Suleiman <maen@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Shadi Ammouri <shadi@marvell.com>,
Eran Ben-Avi <benavi@marvell.com>,
Yehuda Yitschak <yehuday@marvell.com>,
Nadav Haklai <nadavh@marvell.com>,
Ike Pan <ike.pan@canonical.com>,
Chris Van Hoof <vanhoof@canonical.com>,
Dan Frazier <dann.frazier@canonical.com>,
Leif Lindholm <leif.lindholm@arm.com>,
Jon Masters <jcm@redhat.com>
Subject: Re: [PATCH 5/5] arm: dts: Convert mvebu device tree files to 64 bits
Date: Thu, 21 Mar 2013 22:08:10 +0100 [thread overview]
Message-ID: <20130321220810.0c055f57@skate> (raw)
In-Reply-To: <20130321203751.GP21478@lunn.ch>
Dear Andrew Lunn,
On Thu, 21 Mar 2013 21:37:51 +0100, Andrew Lunn wrote:
> > And I'm not sure the SDRAM address decoding windows allows to split the
> > first 4 GB of RAM into two areas, one that would be mapped starting at
> > physical address 0x0, and another area that would be mapped at a
> > different address (above 4 GB).
>
> So why not map the whole SDRAM above 4GB physical address?
That's a good question. The problem is most likely that this would
require to synchronize with U-Boot modifications, which is not easy to
achieve.
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-03-21 21:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-21 16:26 [PATCH 0/5] arm: mvebu: Enable LPAE support for Armada XP SoCs Gregory CLEMENT
[not found] ` <1363883179-1361-1-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2013-03-21 16:26 ` [PATCH 1/5] arm: mvebu: Aligne the internal registers virtual base to support LPAE Gregory CLEMENT
2013-03-21 16:26 ` [PATCH 2/5] arm: mvebu: Select DMA_BOUNCE when LPAE is selected in Kconfig Gregory CLEMENT
2013-03-21 18:19 ` Rob Herring
2013-03-21 19:18 ` Andrew Lunn
[not found] ` <1363883179-1361-3-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2013-03-22 11:32 ` Russell King - ARM Linux
[not found] ` <20130322113251.GB4977-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-03-23 19:48 ` Krzysztof Halasa
2013-03-21 16:26 ` [PATCH 3/5] arm: mvebu: Enable pj4b on LPAE compilations Gregory CLEMENT
2013-03-21 16:26 ` [PATCH 4/5] arm: dts: Add a 64 bits version of the skeleton device tree Gregory CLEMENT
2013-03-21 16:26 ` [PATCH 5/5] arm: dts: Convert mvebu device tree files to 64 bits Gregory CLEMENT
2013-03-21 17:59 ` Rob Herring
[not found] ` <514B4A79.1070501-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-03-21 19:03 ` Arnd Bergmann
2013-03-21 19:18 ` Thomas Petazzoni
2013-03-21 21:31 ` Arnd Bergmann
[not found] ` <201303212131.07629.arnd-r2nGTMty4D4@public.gmane.org>
2013-03-21 22:30 ` Sebastian Hesselbarth
2013-03-21 20:15 ` Andrew Lunn
2013-03-21 20:22 ` Thomas Petazzoni
2013-03-21 20:30 ` Jason Cooper
2013-03-21 20:37 ` Andrew Lunn
2013-03-21 21:08 ` Thomas Petazzoni [this message]
2013-03-21 21:16 ` Thomas Petazzoni
2013-03-21 20:55 ` Jason Gunthorpe
2013-03-21 21:15 ` Thomas Petazzoni
2013-03-21 21:35 ` Lior Amsalem
[not found] ` <EE71107DF0D1F24FA2D95041E64AB9E801A56C7B6D24-YTFUtKQQMWV5iqk/IoNZdEEOCMrvLtNR@public.gmane.org>
2013-03-21 21:46 ` Jason Gunthorpe
[not found] ` <20130321214607.GC8431-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-03-21 21:58 ` Lior Amsalem
[not found] ` <EE71107DF0D1F24FA2D95041E64AB9E801A56C7B6D25-YTFUtKQQMWV5iqk/IoNZdEEOCMrvLtNR@public.gmane.org>
2013-03-22 6:55 ` Arnd Bergmann
2013-03-21 21:41 ` Jason Gunthorpe
2013-03-21 22:26 ` Sebastian Hesselbarth
2013-03-22 9:55 ` Arnd Bergmann
[not found] ` <20130321205545.GA8358-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-03-21 21:25 ` Andrew Lunn
2013-03-22 6:28 ` Andrew Lunn
[not found] ` <20130322062854.GS21478-g2DYL2Zd6BY@public.gmane.org>
2013-03-22 17:43 ` Jason Gunthorpe
[not found] ` <20130322174300.GA10230-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2013-03-22 19:33 ` Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130321220810.0c055f57@skate \
--to=thomas.petazzoni@free-electrons.com \
--cc=alior@marvell.com \
--cc=andrew@lunn.ch \
--cc=arnd@arndb.de \
--cc=benavi@marvell.com \
--cc=dann.frazier@canonical.com \
--cc=devicetree-discuss@lists.ozlabs.org \
--cc=ezequiel.garcia@free-electrons.com \
--cc=grant.likely@secretlab.ca \
--cc=gregory.clement@free-electrons.com \
--cc=ike.pan@canonical.com \
--cc=jason@lakedaemon.net \
--cc=jcm@redhat.com \
--cc=leif.lindholm@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maen@marvell.com \
--cc=nadavh@marvell.com \
--cc=nico@fluxnic.net \
--cc=olof@lixom.net \
--cc=rob.herring@calxeda.com \
--cc=shadi@marvell.com \
--cc=tawfik@marvell.com \
--cc=vanhoof@canonical.com \
--cc=yehuday@marvell.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).