linux-kernel - RE: [PATCH v4 5/5] zynq: move static peripheral mappings

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Message-ID: <736cec0d-a996-4cc9-95af-7912b372fb8c@CH1EHSMHS010.ehs.local>
Date:	Mon, 29 Oct 2012 08:00:57 +0000
From:	Michal Simek <michal.simek@...inx.com>
To:	Josh Cartwright <josh.cartwright@...com>,
	"arm@...nel.org" <arm@...nel.org>, Arnd Bergmann <arnd@...db.de>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	John Linn <linnj@...inx.com>,
	Nick Bowler <nbowler@...iptictech.com>
Subject: RE: [PATCH v4 5/5] zynq: move static peripheral mappings



> -----Original Message-----
> From: Josh Cartwright [mailto:josh.cartwright@...com]
> Sent: Monday, October 22, 2012 4:16 AM
> To: arm@...nel.org; Arnd Bergmann
> Cc: linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; John
> Linn; Nick Bowler; Michal Simek
> Subject: [PATCH v4 5/5] zynq: move static peripheral mappings
>
> Shifting them up into the vmalloc region prevents the following warning, when
> booting a zynq qemu target with more than 512mb of RAM:
>
>   BUG: mapping for 0xe0000000 at 0xe0000000 out of vmalloc space
>
> In addition, it allows for reuse of these mappings when the proper drivers issue
> requests via ioremap().
>
> There are currently unknown issues with the early uart mapping.  For now, the
> uart will be mapped to a known working address.
>
> Signed-off-by: Josh Cartwright <josh.cartwright@...com>
> Cc: John Linn <john.linn@...inx.com>
> Acked-by: Arnd Bergmann <arnd@...db.de>
> ---
>  arch/arm/mach-zynq/common.c                |  6 +++---
>  arch/arm/mach-zynq/include/mach/zynq_soc.h | 25 +++++++++++++++----------
>  2 files changed, 18 insertions(+), 13 deletions(-)
>

Tested and applied to http://git.xilinx.com/?p=linux-xlnx.git;a=shortlog;h=refs/heads/arm-next

Thanks,
Michal




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