From: jason@lakedaemon.net (Jason Cooper)
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 14:05:06 -0500 [thread overview]
Message-ID: <20140304190506.GR1872@titan.lakedaemon.net> (raw)
In-Reply-To: <20140304200215.71cf4c13@skate>
On Tue, Mar 04, 2014 at 08:02:15PM +0100, Thomas Petazzoni wrote:
> 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 :-)
Ok, just wanted to make sure we weren't trying to work around broken
bootloaders (DT aware, wrong idea of size) or something else silly like
that.
thx,
Jason.
next prev parent reply other threads:[~2014-03-04 19:05 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
2014-03-04 19:05 ` Jason Cooper [this message]
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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