From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/5] arm: dts: Convert mvebu device tree files to 64 bits
Date: Fri, 22 Mar 2013 09:55:17 +0000 [thread overview]
Message-ID: <201303220955.17821.arnd@arndb.de> (raw)
In-Reply-To: <20130321214132.GB8431@obsidianresearch.com>
On Thursday 21 March 2013, Jason Gunthorpe wrote:
> On Thu, Mar 21, 2013 at 10:15:23PM +0100, Thomas Petazzoni wrote:
> > Dear Jason Gunthorpe,
> >
> > *) It only works when LPAE is enabled, so we would have to have
> > different internal register addresses depending on whether LPAE is
> > enabled or not. Probably not impossible, but not very
> > straightforward either.
>
> Ideally the internal register space address would come from the DT -
> we are getting very close to that on Marvell, I think.. Things like
> earlyprintk should ideally early parse the DT, harder I know :(
Let's not worry about earlyprintk for now. earlyprintk is supposed to be
really really simple, and the solution that we are using now works
well enough: You pick a hardcoded implementation at build time when
you are debugging, but disable debug_ll for a multiplatform release
kernel.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Lior Amsalem <alior@marvell.com>, Andrew Lunn <andrew@lunn.ch>,
Ike Pan <ike.pan@canonical.com>,
Nadav Haklai <nadavh@marvell.com>,
David Marlin <dmarlin@redhat.com>,
Yehuda Yitschak <yehuday@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Dan Frazier <dann.frazier@canonical.com>,
Eran Ben-Avi <benavi@marvell.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Leif Lindholm <leif.lindholm@arm.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Jason Cooper <jason@lakedaemon.net>, Jon Masters <jcm@redhat.com>,
devicetree-discuss@lists.ozlabs.org,
Rob Herring <rob.herring@calxeda.com>,
Gregory CLEMENT <gregory.clement@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Chris Van Hoof <vanhoof@canonical.com>,
Nicolas Pitre <nico@fluxnic.net>,
linux-kernel@vger.kernel.org, Grant Likely <gran>
Subject: Re: [PATCH 5/5] arm: dts: Convert mvebu device tree files to 64 bits
Date: Fri, 22 Mar 2013 09:55:17 +0000 [thread overview]
Message-ID: <201303220955.17821.arnd@arndb.de> (raw)
In-Reply-To: <20130321214132.GB8431@obsidianresearch.com>
On Thursday 21 March 2013, Jason Gunthorpe wrote:
> On Thu, Mar 21, 2013 at 10:15:23PM +0100, Thomas Petazzoni wrote:
> > Dear Jason Gunthorpe,
> >
> > *) It only works when LPAE is enabled, so we would have to have
> > different internal register addresses depending on whether LPAE is
> > enabled or not. Probably not impossible, but not very
> > straightforward either.
>
> Ideally the internal register space address would come from the DT -
> we are getting very close to that on Marvell, I think.. Things like
> earlyprintk should ideally early parse the DT, harder I know :(
Let's not worry about earlyprintk for now. earlyprintk is supposed to be
really really simple, and the solution that we are using now works
well enough: You pick a hardcoded implementation at build time when
you are debugging, but disable debug_ll for a multiplatform release
kernel.
Arnd
next prev parent reply other threads:[~2013-03-22 9:55 UTC|newest]
Thread overview: 90+ 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
2013-03-21 16:26 ` Gregory CLEMENT
2013-03-21 16:26 ` Gregory CLEMENT
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 ` Gregory CLEMENT
2013-03-21 16:26 ` 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 16:26 ` Gregory CLEMENT
2013-03-21 16:26 ` Gregory CLEMENT
2013-03-21 18:19 ` Rob Herring
2013-03-21 18:19 ` Rob Herring
2013-03-21 19:18 ` Andrew Lunn
2013-03-21 19:18 ` Andrew Lunn
2013-03-21 19:18 ` Andrew Lunn
2013-03-22 11:32 ` Russell King - ARM Linux
2013-03-22 11:32 ` Russell King - ARM Linux
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 ` Gregory CLEMENT
2013-03-21 16:26 ` 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 ` Gregory CLEMENT
2013-03-21 16:26 ` 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 16:26 ` Gregory CLEMENT
2013-03-21 16:26 ` Gregory CLEMENT
2013-03-21 17:59 ` Rob Herring
2013-03-21 17:59 ` Rob Herring
2013-03-21 17:59 ` Rob Herring
2013-03-21 19:03 ` Arnd Bergmann
2013-03-21 19:03 ` Arnd Bergmann
2013-03-21 19:03 ` Arnd Bergmann
2013-03-21 19:18 ` Thomas Petazzoni
2013-03-21 19:18 ` Thomas Petazzoni
2013-03-21 19:18 ` Thomas Petazzoni
2013-03-21 21:31 ` Arnd Bergmann
2013-03-21 21:31 ` Arnd Bergmann
2013-03-21 21:31 ` Arnd Bergmann
2013-03-21 22:30 ` Sebastian Hesselbarth
2013-03-21 22:30 ` Sebastian Hesselbarth
2013-03-21 22:30 ` Sebastian Hesselbarth
2013-03-21 20:15 ` Andrew Lunn
2013-03-21 20:15 ` Andrew Lunn
2013-03-21 20:15 ` Andrew Lunn
2013-03-21 20:22 ` Thomas Petazzoni
2013-03-21 20:22 ` Thomas Petazzoni
2013-03-21 20:22 ` Thomas Petazzoni
2013-03-21 20:30 ` Jason Cooper
2013-03-21 20:30 ` Jason Cooper
2013-03-21 20:30 ` Jason Cooper
2013-03-21 20:37 ` Andrew Lunn
2013-03-21 20:37 ` Andrew Lunn
2013-03-21 20:37 ` Andrew Lunn
2013-03-21 21:08 ` Thomas Petazzoni
2013-03-21 21:08 ` Thomas Petazzoni
2013-03-21 21:08 ` Thomas Petazzoni
2013-03-21 21:16 ` Thomas Petazzoni
2013-03-21 21:16 ` Thomas Petazzoni
2013-03-21 21:16 ` Thomas Petazzoni
2013-03-21 20:55 ` Jason Gunthorpe
2013-03-21 20:55 ` Jason Gunthorpe
2013-03-21 20:55 ` Jason Gunthorpe
2013-03-21 21:15 ` Thomas Petazzoni
2013-03-21 21:15 ` Thomas Petazzoni
2013-03-21 21:15 ` Thomas Petazzoni
2013-03-21 21:35 ` Lior Amsalem
2013-03-21 21:35 ` Lior Amsalem
2013-03-21 21:46 ` Jason Gunthorpe
2013-03-21 21:46 ` Jason Gunthorpe
2013-03-21 21:58 ` Lior Amsalem
2013-03-21 21:58 ` Lior Amsalem
2013-03-22 6:55 ` Arnd Bergmann
2013-03-22 6:55 ` Arnd Bergmann
2013-03-21 21:41 ` Jason Gunthorpe
2013-03-21 21:41 ` Jason Gunthorpe
2013-03-21 21:41 ` Jason Gunthorpe
2013-03-21 22:26 ` Sebastian Hesselbarth
2013-03-21 22:26 ` Sebastian Hesselbarth
2013-03-21 22:26 ` Sebastian Hesselbarth
2013-03-22 9:55 ` Arnd Bergmann [this message]
2013-03-22 9:55 ` Arnd Bergmann
2013-03-21 21:25 ` Andrew Lunn
2013-03-21 21:25 ` Andrew Lunn
2013-03-22 6:28 ` Andrew Lunn
2013-03-22 6:28 ` Andrew Lunn
2013-03-22 17:43 ` Jason Gunthorpe
2013-03-22 17:43 ` Jason Gunthorpe
2013-03-22 19:33 ` Arnd Bergmann
2013-03-22 19:33 ` Arnd Bergmann
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