From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] ARM: mvebu: the Armada XP Matrix board has 4 GB
Date: Tue, 4 Mar 2014 20:02:15 +0100 [thread overview]
Message-ID: <20140304200215.71cf4c13@skate> (raw)
In-Reply-To: <20140304185512.GQ1872@titan.lakedaemon.net>
Dear Jason Cooper,
On Tue, 4 Mar 2014 13:55:12 -0500, Jason Cooper wrote:
> On Tue, Mar 04, 2014 at 05:37:02PM +0100, Thomas Petazzoni wrote:
> > Since the Armada XP Matrix board has 4 GB of RAM and not 2 GB, we
> > update the Device Tree to take into account the correct amount of
> > memory. As noted in the new comment, the last 256 MB of RAM are in
> > fact not usable, due to the overlap with the MBus Window address
> > range.
>
> usually the bootloader (DT) or atags_to_fdt overwrites this. Is there a
> scenario when that doesn't happen?
ATAGs booting with CONFIG_ARM_ATAG_DTB_COMPAT disabled. Though mainly
the intent here is that if the amount of memory is mentioned in the DT,
it's nicer when it's actually correct :-)
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2014-03-04 19:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-04 16:36 [PATCH 0/4] ARM: mvebu: Device Tree updates for Armada XP boards Thomas Petazzoni
2014-03-04 16:36 ` [PATCH 1/4] ARM: mvebu: change the default PCIe apertures for Armada 370/XP Thomas Petazzoni
2014-03-04 16:37 ` [PATCH 2/4] ARM: mvebu: switch the Armada XP DB to use internal registers at 0xf1000000 Thomas Petazzoni
2014-03-04 16:37 ` [PATCH 3/4] ARM: mvebu: switch the Armada XP GP " Thomas Petazzoni
2014-03-04 16:37 ` [PATCH 4/4] ARM: mvebu: the Armada XP Matrix board has 4 GB Thomas Petazzoni
2014-03-04 18:55 ` Jason Cooper
2014-03-04 19:02 ` Thomas Petazzoni [this message]
2014-03-04 19:05 ` Jason Cooper
2014-03-06 20:05 ` [PATCH 0/4] ARM: mvebu: Device Tree updates for Armada XP boards Jason Cooper
2014-03-06 21:20 ` Thomas Petazzoni
2014-03-07 0:10 ` Ezequiel Garcia
2014-03-07 0:16 ` Jason Cooper
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