[PATCH 3/4] arm64: dts: imx8mm: add the pcie phy support

Richard Zhu hongxing.zhu at nxp.com
Thu Sep 16 19:31:02 PDT 2021


Add the PCIe PHY support on iMX8MM platforms.

Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi |  4 ++++
 arch/arm64/boot/dts/freescale/imx8mm.dtsi     | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index e033d0257b5a..e7f398433486 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -289,6 +289,10 @@ pca6416: gpio at 20 {
 	};
 };
 
+&pcie_phy {
+	status = "okay";
+};
+
 &sai3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sai3>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index e7648c3b8390..de231d531ba4 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -998,6 +998,18 @@ usbmisc2: usbmisc at 32e50200 {
 				reg = <0x32e50200 0x200>;
 			};
 
+			pcie_phy: pcie-phy at 32f00000 {
+				compatible = "fsl,imx8mm-pcie-phy";
+				reg = <0x32f00000 0x10000>;
+				clocks = <&clk IMX8MM_CLK_PCIE1_PHY>;
+				clock-names = "phy";
+				assigned-clocks = <&clk IMX8MM_CLK_PCIE1_PHY>;
+				assigned-clock-rates = <100000000>;
+				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_100M>;
+				#phy-cells = <0>;
+				fsl,refclk-pad-mode = <1>;
+				status = "disabled";
+			};
 		};
 
 		dma_apbh: dma-controller at 33000000 {
-- 
2.25.1




More information about the linux-phy mailing list