Add dma support uart[0..3]. Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi index 0519edd3f520..8fd924dfb029 100644 --- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi @@ -93,6 +93,8 @@ lpuart0: serial@5a060000 { assigned-clocks = <&clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>; assigned-clock-rates = <80000000>; power-domains = <&pd IMX_SC_R_UART_0>; + dma-names = "tx","rx"; + dmas = <&edma2 9 0 0>, <&edma2 8 0 1>; status = "disabled"; }; @@ -105,6 +107,8 @@ lpuart1: serial@5a070000 { assigned-clocks = <&clk IMX_SC_R_UART_1 IMX_SC_PM_CLK_PER>; assigned-clock-rates = <80000000>; power-domains = <&pd IMX_SC_R_UART_1>; + dma-names = "tx","rx"; + dmas = <&edma2 11 0 0>, <&edma2 10 0 1>; status = "disabled"; }; @@ -117,6 +121,8 @@ lpuart2: serial@5a080000 { assigned-clocks = <&clk IMX_SC_R_UART_2 IMX_SC_PM_CLK_PER>; assigned-clock-rates = <80000000>; power-domains = <&pd IMX_SC_R_UART_2>; + dma-names = "tx","rx"; + dmas = <&edma2 13 0 0>, <&edma2 12 0 1>; status = "disabled"; }; @@ -129,6 +135,8 @@ lpuart3: serial@5a090000 { assigned-clocks = <&clk IMX_SC_R_UART_3 IMX_SC_PM_CLK_PER>; assigned-clock-rates = <80000000>; power-domains = <&pd IMX_SC_R_UART_3>; + dma-names = "tx","rx"; + dmas = <&edma2 15 0 0>, <&edma2 14 0 1>; status = "disabled"; }; -- 2.34.1