diff mbox series

[v6,3/7] arm64: dts: imx8mp-evk: Add PCIe support

Message ID 1662004960-14071-4-git-send-email-hongxing.zhu@nxp.com (mailing list archive)
State Superseded
Headers show
Series Add the iMX8MP PCIe support | expand

Commit Message

Richard Zhu Sept. 1, 2022, 4:02 a.m. UTC 
Add PCIe support on i.MX8MP EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Tested-by: Marek Vasut <marex@denx.de>
Tested-by: Richard Leitner <richard.leitner@skidata.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 53 ++++++++++++++++++++
 1 file changed, 53 insertions(+)

Comments

Lucas Stach Sept. 2, 2022, 8:47 a.m. UTC | #1 
Am Donnerstag, dem 01.09.2022 um 12:02 +0800 schrieb Richard Zhu:
> Add PCIe support on i.MX8MP EVK board.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> Tested-by: Marek Vasut <marex@denx.de>
> Tested-by: Richard Leitner <richard.leitner@skidata.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

> ---
>  arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 53 ++++++++++++++++++++
>  1 file changed, 53 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index f6b017ab5f53..9f1469db554d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -5,6 +5,7 @@
>  
>  /dts-v1/;
>  
> +#include <dt-bindings/phy/phy-imx8-pcie.h>
>  #include "imx8mp.dtsi"
>  
>  / {
> @@ -33,6 +34,12 @@ memory@40000000 {
>  		      <0x1 0x00000000 0 0xc0000000>;
>  	};
>  
> +	pcie0_refclk: pcie0-refclk {
> +		compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <100000000>;
> +	};
> +
>  	reg_can1_stby: regulator-can1-stby {
>  		compatible = "regulator-fixed";
>  		regulator-name = "can1-stby";
> @@ -55,6 +62,17 @@ reg_can2_stby: regulator-can2-stby {
>  		enable-active-high;
>  	};
>  
> +	reg_pcie0: regulator-pcie {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_pcie0_reg>;
> +		regulator-name = "MPCIE_3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
>  	reg_usdhc2_vmmc: regulator-usdhc2 {
>  		compatible = "regulator-fixed";
>  		pinctrl-names = "default";
> @@ -350,6 +368,28 @@ &i2c5 {
>  	 */
>  };
>  
> +&pcie_phy {
> +	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
> +	clocks = <&pcie0_refclk>;
> +	clock-names = "ref";
> +	status = "okay";
> +};
> +
> +&pcie {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pcie0>;
> +	reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>;
> +	clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
> +		 <&clk IMX8MP_CLK_PCIE_ROOT>,
> +		 <&clk IMX8MP_CLK_HSIO_AXI>;
> +	clock-names = "pcie", "pcie_aux", "pcie_bus";
> +	assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
> +	assigned-clock-rates = <10000000>;
> +	assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
> +	vpcie-supply = <&reg_pcie0>;
> +	status = "okay";
> +};
> +
>  &snvs_pwrkey {
>  	status = "okay";
>  };
> @@ -502,6 +542,19 @@ MX8MP_IOMUXC_SPDIF_TX__I2C5_SCL         0x400001c2
>  		>;
>  	};
>  
> +	pinctrl_pcie0: pcie0grp {
> +		fsl,pins = <
> +			MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B	0x61 /* open drain, pull up */
> +			MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07	0x41
> +		>;
> +	};
> +
> +	pinctrl_pcie0_reg: pcie0reggrp {
> +		fsl,pins = <
> +			MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06	0x41
> +		>;
> +	};
> +
>  	pinctrl_pmic: pmicgrp {
>  		fsl,pins = <
>  			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03	0x000001c0
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index f6b017ab5f53..9f1469db554d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -5,6 +5,7 @@ 
 
 /dts-v1/;
 
+#include <dt-bindings/phy/phy-imx8-pcie.h>
 #include "imx8mp.dtsi"
 
 / {
@@ -33,6 +34,12 @@  memory@40000000 {
 		      <0x1 0x00000000 0 0xc0000000>;
 	};
 
+	pcie0_refclk: pcie0-refclk {
+		compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <100000000>;
+	};
+
 	reg_can1_stby: regulator-can1-stby {
 		compatible = "regulator-fixed";
 		regulator-name = "can1-stby";
@@ -55,6 +62,17 @@  reg_can2_stby: regulator-can2-stby {
 		enable-active-high;
 	};
 
+	reg_pcie0: regulator-pcie {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pcie0_reg>;
+		regulator-name = "MPCIE_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -350,6 +368,28 @@  &i2c5 {
 	 */
 };
 
+&pcie_phy {
+	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+	clocks = <&pcie0_refclk>;
+	clock-names = "ref";
+	status = "okay";
+};
+
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie0>;
+	reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>;
+	clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
+		 <&clk IMX8MP_CLK_PCIE_ROOT>,
+		 <&clk IMX8MP_CLK_HSIO_AXI>;
+	clock-names = "pcie", "pcie_aux", "pcie_bus";
+	assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
+	assigned-clock-rates = <10000000>;
+	assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
+	vpcie-supply = <&reg_pcie0>;
+	status = "okay";
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -502,6 +542,19 @@  MX8MP_IOMUXC_SPDIF_TX__I2C5_SCL         0x400001c2
 		>;
 	};
 
+	pinctrl_pcie0: pcie0grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B	0x61 /* open drain, pull up */
+			MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07	0x41
+		>;
+	};
+
+	pinctrl_pcie0_reg: pcie0reggrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06	0x41
+		>;
+	};
+
 	pinctrl_pmic: pmicgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03	0x000001c0