[PATCH 1/4] arm64: dts: imx8qm-ss-dma: add lpuart4 node

Frank.Li at oss.nxp.com Frank.Li at oss.nxp.com
Mon Jul 6 14:52:08 PDT 2026


From: Frank Li <Frank.Li at nxp.com>

Add lpuart4 node for imx8qm.

Signed-off-by: Frank Li <Frank.Li at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
index 974e193f8dcb9..caa2a7f89ab99 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
@@ -8,6 +8,22 @@
 /delete-node/ &adma_pwm_lpcg;
 
 &dma_subsys {
+	lpuart4: serial at 5a0a0000 {
+		compatible = "fsl,imx8qm-lpuart", "fsl,imx8qxp-lpuart";
+		reg = <0x5a0a0000 0x1000>;
+		interrupts = <GIC_SPI 349 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		clocks = <&uart4_lpcg IMX_LPCG_CLK_4>, <&uart4_lpcg IMX_LPCG_CLK_0>;
+		clock-names = "ipg", "baud";
+		assigned-clocks = <&clk IMX_SC_R_UART_4 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <80000000>;
+		power-domains = <&pd IMX_SC_R_UART_4>;
+		power-domain-names = "uart";
+		dmas = <&edma2 20 0 FSL_EDMA_RX>, <&edma2 21 0 0>;
+		dma-names = "rx","tx";
+		status = "disabled";
+	};
+
 	uart4_lpcg: clock-controller at 5a4a0000 {
 		compatible = "fsl,imx8qxp-lpcg";
 		reg = <0x5a4a0000 0x10000>;

-- 
2.43.0




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