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arm64: dts: imx8mp-evk: Add PCIe support

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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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Richard Zhu
2022-09-02 16:58:02 +08:00
committed by Shawn Guo
parent 9e65987b95
commit d506505000
1 changed files with 53 additions and 0 deletions
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53
arch/arm64/boot/dts/freescale/imx8mp-evk.dts
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@@ -5,6 +5,7 @@
/dts-v1/;
#include <dt-bindings/phy/phy-imx8-pcie.h>
#include "imx8mp.dtsi"
/ {
@@ -33,6 +34,12 @@
<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 @@
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 @@
*/
};
&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 @@
>;
};
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