diff mbox series

[v5,3/7] arm64: dts: imx8mp-evk: Add PCIe support

Message ID 1661845564-11373-4-git-send-email-hongxing.zhu@nxp.com
State New
Headers show
Series Add the iMX8MP PCIe support | expand

Commit Message

Richard Zhu Aug. 30, 2022, 7:46 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

Marcel Ziswiler Aug. 31, 2022, 10:18 a.m. UTC | #1 
On Tue, 2022-08-30 at 15:46 +0800, Richard Zhu wrote:
> 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(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index f6b017ab5f53..defc92a8bb60 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{

Missing space before that curly brace.

> +       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
Richard Zhu Sept. 1, 2022, 1:28 a.m. UTC | #2 
> -----Original Message-----
> From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> Sent: 2022年8月31日 18:18
> To: vkoul@kernel.org; richard.leitner@linux.dev;
> alexander.stein@ew.tq-group.com; robh@kernel.org; l.stach@pengutronix.de;
> shawnguo@kernel.org; lorenzo.pieralisi@arm.com; p.zabel@pengutronix.de;
> Hongxing Zhu <hongxing.zhu@nxp.com>; bhelgaas@google.com;
> marex@denx.de
> Cc: linux-phy@lists.infradead.org; linux-pci@vger.kernel.org;
> kernel@pengutronix.de; devicetree@vger.kernel.org;
> linux-kernel@vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>;
> linux-arm-kernel@lists.infradead.org
> Subject: Re: [PATCH v5 3/7] arm64: dts: imx8mp-evk: Add PCIe support
> 
> On Tue, 2022-08-30 at 15:46 +0800, Richard Zhu wrote:
> > 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(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > index f6b017ab5f53..defc92a8bb60 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{
> 
> Missing space before that curly brace.
> 
Good caught. Would be changed later, thanks.

Best Regards
Richard Zhu

> > +       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_CLKRE
> Q_B    0x61
> > +/* open drain, pull up */
> >
> +                       MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO
> 07      0x41
> > +               >;
> > +       };
> > +
> > +       pinctrl_pcie0_reg: pcie0reggrp {
> > +               fsl,pins = <
> >
> +                       MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO
> 06      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..defc92a8bb60 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