[PATCH 2/2] imx53.dtsi : Add DMA configuration for UART
Fabien Lahoudere
fabien.lahoudere at collabora.co.uk
Wed Aug 3 07:13:13 PDT 2016
In order to use sdma with UART, we need to add DMA configuration in device tree.
Signed-off-by: Fabien Lahoudere <fabien.lahoudere at collabora.co.uk>
---
arch/arm/boot/dts/imx53.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi
index cd17037..de545e2 100644
--- a/arch/arm/boot/dts/imx53.dtsi
+++ b/arch/arm/boot/dts/imx53.dtsi
@@ -217,6 +217,8 @@
clocks = <&clks IMX5_CLK_UART3_IPG_GATE>,
<&clks IMX5_CLK_UART3_PER_GATE>;
clock-names = "ipg", "per";
+ dmas = <&sdma 42 4 0>, <&sdma 43 4 0>;
+ dma-names = "rx", "tx";
status = "disabled";
};
@@ -508,6 +510,8 @@
clocks = <&clks IMX5_CLK_UART2_IPG_GATE>,
<&clks IMX5_CLK_UART2_PER_GATE>;
clock-names = "ipg", "per";
+ dmas = <&sdma 12 4 0>, <&sdma 13 4 0>;
+ dma-names = "rx", "tx";
status = "disabled";
};
@@ -591,6 +595,8 @@
clocks = <&clks IMX5_CLK_UART4_IPG_GATE>,
<&clks IMX5_CLK_UART4_PER_GATE>;
clock-names = "ipg", "per";
+ dmas = <&sdma 2 4 0>, <&sdma 3 4 0>;
+ dma-names = "rx", "tx";
status = "disabled";
};
};
@@ -621,6 +627,8 @@
clocks = <&clks IMX5_CLK_UART5_IPG_GATE>,
<&clks IMX5_CLK_UART5_PER_GATE>;
clock-names = "ipg", "per";
+ dmas = <&sdma 16 4 0>, <&sdma 17 4 0>;
+ dma-names = "rx", "tx";
status = "disabled";
};
--
2.7.4
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