2014-01-13 11:11:50

by Florian Meier

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 <[email protected]>
---
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@7e007000 {
+ 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

2014-02-12 05:05:10

by Stephen Warren

Subject: Re: [PATCH 1/2] BCM2835: Add dmaengine driver to device tree

On 01/13/2014 04:11 AM, Florian Meier wrote:
> 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.

I've applied patch 1, and the part of patch 2 which touches bcm2835.dtsi
to bcm2835's for-3.15/dt branch, with minor fixes.