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Message-ID: <52D3C9EF.1030901@koalo.de>
Date: Mon, 13 Jan 2014 12:11:43 +0100
From: Florian Meier <florian.meier@...lo.de>
To: Stephen Warren <swarren@...dotorg.org>
CC: linux-rpi-kernel <linux-rpi-kernel@...ts.infradead.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
devicetree <devicetree@...r.kernel.org>
Subject: [PATCH 1/2] BCM2835: Add dmaengine driver to device tree
This adds the definitions for the BCM2835 dmaengine driver
to the device tree. The dma-channel-mask is currently
fixed. Later it should be set via the firmware.
Signed-off-by: Florian Meier <florian.meier@...lo.de>
---
arch/arm/boot/dts/bcm2835.dtsi | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index b021c96..1da6b36 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -113,6 +113,27 @@
reg = <0x7e980000 0x10000>;
interrupts = <1 9>;
};
+
+ dma: dma@...07000 {
+ compatible = "brcm,bcm2835-dma";
+ reg = <0x7e007000 0xf00>;
+ interrupts = <1 16>,
+ <1 17>,
+ <1 18>,
+ <1 19>,
+ <1 20>,
+ <1 21>,
+ <1 22>,
+ <1 23>,
+ <1 24>,
+ <1 25>,
+ <1 26>,
+ <1 27>,
+ <1 28>;
+
+ #dma-cells = <1>;
+ brcm,dma-channel-mask = <0x7f35>;
+ };
};
clocks {
--
1.8.3.2
--
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