[PATCH 6/6] arm64: dts: imx8dxl-ss-ddr: Add DB (system interconnects) pmu support for i.MX8DXL
Frank Li
Frank.Li at nxp.com
Thu Oct 23 11:56:46 PDT 2025
From: Jacky Bai <ping.bai at nxp.com>
Add DB pmu related nodes. This pmu is in DB (system interconnects).
Signed-off-by: Jacky Bai <ping.bai at nxp.com>
Signed-off-by: Frank Li <Frank.Li at nxp.com>
---
arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi | 30 +++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi b/arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi
index 3569abb5bb9befd4d1504e3e2a352c64229533c0..b9ca15d6b7f623e990ac66a770f7a34e82bf4b17 100644
--- a/arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi
@@ -7,3 +7,33 @@ &ddr_pmu0 {
compatible = "fsl,imx8dxl-ddr-pmu", "fsl,imx8-ddr-pmu";
interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
};
+
+&ddr_subsys {
+ db_ipg_clk: clock-db-ipg {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <456000000>;
+ clock-output-names = "db_ipg_clk";
+ };
+
+ db_pmu0: db-pmu at 5ca40000 {
+ compatible = "fsl,imx8dxl-db-pmu";
+ reg = <0x5ca40000 0x10000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 338 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&db_pmu0_lpcg IMX_LPCG_CLK_4>, <&db_pmu0_lpcg IMX_LPCG_CLK_0>;
+ clock-names = "ipg", "cnt";
+ power-domains = <&pd IMX_SC_R_PERF>;
+ };
+
+ db_pmu0_lpcg: clock-controller at 5cae0000 {
+ compatible = "fsl,imx8qxp-lpcg";
+ reg = <0x5cae0000 0x10000>;
+ #clock-cells = <1>;
+ clocks = <&db_ipg_clk>, <&db_ipg_clk>;
+ clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
+ clock-output-names = "perf_lpcg_cnt_clk",
+ "perf_lpcg_ipg_clk";
+ power-domains = <&pd IMX_SC_R_PERF>;
+ };
+};
--
2.34.1
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