2022-02-09 09:08:09

by Richard Zhu

Subject: [PATCH] arm64: dts: imx8mq-evk: Add the second pcie port support

Enable the secone PCIe port support on i.MX8MQ EVK board.

Signed-off-by: Richard Zhu <[email protected]>
---
arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 38 ++++++++++++++++++++
1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index a1b7582f3ecf..06f6e44da4d4 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -27,6 +27,17 @@ pcie0_refclk: pcie0-refclk {
clock-frequency = <100000000>;
};

+ reg_pcie1: regulator-pcie {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie1_reg>;
+ regulator-name = "MPCIE_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio5 10 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
reg_usdhc2_vmmc: regulator-vsd-3v3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_usdhc2>;
@@ -327,6 +338,20 @@ &pcie0 {
status = "okay";
};

+&pcie1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie1>;
+ reset-gpio = <&gpio5 12 GPIO_ACTIVE_LOW>;
+ clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
+ <&clk IMX8MQ_CLK_PCIE2_AUX>,
+ <&clk IMX8MQ_CLK_PCIE2_PHY>,
+ <&pcie0_refclk>;
+ clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus";
+ vpcie-supply = <&reg_pcie1>;
+ vph-supply = <&vgen5_reg>;
+ status = "okay";
+};
+
&pgc_gpu {
power-supply = <&sw1a_reg>;
};
@@ -482,6 +507,19 @@ MX8MQ_IOMUXC_UART4_RXD_GPIO5_IO28 0x16
>;
};

+ pinctrl_pcie1: pcie1grp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_I2C4_SDA_PCIE2_CLKREQ_B 0x76
+ MX8MQ_IOMUXC_ECSPI2_MISO_GPIO5_IO12 0x16
+ >;
+ };
+
+ pinctrl_pcie1_reg: pcie1reggrp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_ECSPI2_SCLK_GPIO5_IO10 0x16
+ >;
+ };
+
pinctrl_qspi: qspigrp {
fsl,pins = <
MX8MQ_IOMUXC_NAND_ALE_QSPI_A_SCLK 0x82
--
2.25.1

2022-02-09 09:33:08

by Bjorn Helgaas

Subject: Re: [PATCH] arm64: dts: imx8mq-evk: Add the second pcie port support

In subject:

s/Add the/Add/
s/pcie/PCIe/

On Tue, Feb 08, 2022 at 03:02:29PM +0800, Richard Zhu wrote:
> Enable the secone PCIe port support on i.MX8MQ EVK board.

s/secone/second/

2022-02-09 10:59:37

by Richard Zhu

Subject: RE: [PATCH] arm64: dts: imx8mq-evk: Add the second pcie port support

> -----Original Message-----
> From: Bjorn Helgaas <[email protected]>
> Sent: 2022??2??8?? 23:29
> To: Hongxing Zhu <[email protected]>
> Cc: [email protected]; [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; dl-linux-imx <[email protected]>
> Subject: Re: [PATCH] arm64: dts: imx8mq-evk: Add the second pcie port
> support
>
> In subject:
>
> s/Add the/Add/
> s/pcie/PCIe/
>
> On Tue, Feb 08, 2022 at 03:02:29PM +0800, Richard Zhu wrote:
> > Enable the secone PCIe port support on i.MX8MQ EVK board.
>
> s/secone/second/
Thanks a lot for your quickly review.
Would be changed a moment later.
Best Regards
Richard