[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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