linux-kernel - [PATCH v2 3/4] arm64: dts: imx8mm: add the pcie phy support

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Date:   Sun, 26 Sep 2021 15:39:42 +0800
From:   Richard Zhu <hongxing.zhu@....com>
To:     l.stach@...gutronix.de, kishon@...com, vkoul@...nel.org,
        robh@...nel.org, galak@...nel.crashing.org, shawnguo@...nel.org
Cc:     linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de, linux-imx@....com,
        Richard Zhu <hongxing.zhu@....com>
Subject: [PATCH v2 3/4] arm64: dts: imx8mm: add the pcie phy support

Add the PCIe PHY support on iMX8MM platforms.

Signed-off-by: Richard Zhu <hongxing.zhu@....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@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@...50200 {
 				reg = <0x32e50200 0x200>;
 			};
 
+			pcie_phy: pcie-phy@...00000 {
+				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@...00000 {
-- 
2.25.1