Messages in this thread Patch in this message | | | From | Sebastian Krzyszkowiak <> | Date | Tue, 21 Feb 2023 09:04:08 +0100 | Subject | [PATCH] arm64: dts: imx8mq: Add UART DMA support |
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UART ports have DMA capability. Describe the UART DMA properties.
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm> --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 98fbba4c99a9..142a5c894e1e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -940,6 +940,8 @@ uart1: serial@30860000 { clocks = <&clk IMX8MQ_CLK_UART1_ROOT>, <&clk IMX8MQ_CLK_UART1_ROOT>; clock-names = "ipg", "per"; + dmas = <&sdma1 22 4 0>, <&sdma1 23 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; @@ -951,6 +953,8 @@ uart3: serial@30880000 { clocks = <&clk IMX8MQ_CLK_UART3_ROOT>, <&clk IMX8MQ_CLK_UART3_ROOT>; clock-names = "ipg", "per"; + dmas = <&sdma1 26 4 0>, <&sdma1 27 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; @@ -962,6 +966,8 @@ uart2: serial@30890000 { clocks = <&clk IMX8MQ_CLK_UART2_ROOT>, <&clk IMX8MQ_CLK_UART2_ROOT>; clock-names = "ipg", "per"; + dmas = <&sdma1 24 4 0>, <&sdma1 25 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; @@ -1157,6 +1163,8 @@ uart4: serial@30a60000 { clocks = <&clk IMX8MQ_CLK_UART4_ROOT>, <&clk IMX8MQ_CLK_UART4_ROOT>; clock-names = "ipg", "per"; + dmas = <&sdma1 28 4 0>, <&sdma1 29 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; --- base-commit: 89f5349e0673322857bd432fa23113af56673739 change-id: 20230221-uart-dma-df84665c6a97 Best regards, -- Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
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