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* [PATCH] arm64: dts: imx8mp: Add PCIe support to DH electronics i.MX8M Plus DHCOM and PDK2
@ 2023-02-17 19:24 Marek Vasut
  2023-03-14  1:42 ` Shawn Guo
  0 siblings, 1 reply; 2+ messages in thread
From: Marek Vasut @ 2023-02-17 19:24 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: Marek Vasut, Fabio Estevam, Krzysztof Kozlowski, NXP Linux Team,
	Pengutronix Kernel Team, Rob Herring, Sascha Hauer, Shawn Guo,
	devicetree, kernel

Add PCIe support for DH electronics i.MX8M Plus DHCOM SoM on PDK2 carrier board.

Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Marek Vasut <marex@denx.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
---
 .../arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts
index 382fbedaf6ba4..fdf18b7f208d5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts
@@ -151,6 +151,20 @@ &flexcan1 {
 	status = "okay";
 };
 
+&pcie_phy {
+	clock-names = "ref";
+	clocks = <&clk IMX8MP_SYS_PLL2_100M>;
+	fsl,clkreq-unsupported;
+	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_UNUSED>;
+	status = "okay";
+};
+
+&pcie {
+	fsl,max-link-speed = <1>;
+	reset-gpio = <&gpio1 6 GPIO_ACTIVE_LOW>;	/* GPIO J */
+	status = "okay";
+};
+
 &usb3_1 {
 	fsl,over-current-active-low;
 };
-- 
2.39.1


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2023-02-17 19:24 [PATCH] arm64: dts: imx8mp: Add PCIe support to DH electronics i.MX8M Plus DHCOM and PDK2 Marek Vasut
2023-03-14  1:42 ` Shawn Guo

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