From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] video: imxfb: Add DT support
Date: Mon, 15 Apr 2013 21:47:38 +0200 [thread overview]
Message-ID: <20130415194738.GE1906@pengutronix.de> (raw)
In-Reply-To: <20130415151316.4d49e9b2@e6520eb>
On Mon, Apr 15, 2013 at 03:13:16PM +0200, Eric B?nard wrote:
> Hi,
>
>
> I didn't follow the thread but dmacr is not specific to our boards :
> $ grep -rn dmacr arch/arm/mach-imx/
> arch/arm/mach-imx/mach-mx27_3ds.c:446: .dmacr = 0x00020010,
> arch/arm/mach-imx/mach-mx21ads.c:231: .dmacr = 0x00020008,
> arch/arm/mach-imx/mach-mxt_td60.c:210: .dmacr = 0x00020010,
> arch/arm/mach-imx/eukrea_mbimx27-baseboard.c:192: .dmacr = 0x00040060,
> arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c:165: .dmacr = 0x00040060,
> arch/arm/mach-imx/mach-mx27ads.c:241: .dmacr = 0x00020010,
> arch/arm/mach-imx/mach-pca100.c:351: .dmacr = 0x00020010,
> arch/arm/mach-imx/pcm970-baseboard.c:185: .dmacr = 0x00020010,
> arch/arm/mach-imx/mach-mx25_3ds.c:173: .dmacr = 0x00020010,
The reference manual has this about the dmacr register:
The dynamic mode is recommend, and also the TM and HM reset value are
recommend in the dynamic mode. The same recommendation is for the
graphic DMA control.
So maybe we should ask whether the boards really have to change this
value or if the reset value is suitable for all.
Sascha
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prev parent reply other threads:[~2013-04-15 19:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 10:31 [PATCH v3 0/2] video: imxfb DT support Markus Pargmann
2013-04-05 10:31 ` [PATCH v3 1/2] imxfb: Set alpha value of the framebuffer Markus Pargmann
2013-04-05 10:31 ` [PATCH v3 2/2] video: imxfb: Add DT support Markus Pargmann
2013-04-08 7:57 ` Jean-Christophe PLAGNIOL-VILLARD
2013-04-14 14:31 ` Markus Pargmann
2013-04-15 12:43 ` Jean-Christophe PLAGNIOL-VILLARD
2013-04-15 13:13 ` Eric Bénard
2013-04-15 13:23 ` Jean-Christophe PLAGNIOL-VILLARD
2013-04-16 14:17 ` Markus Pargmann
2013-04-15 19:47 ` Sascha Hauer [this message]
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