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From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, cstevens@beaconembedded.com,
	Adam Ford <aford173@gmail.com>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org
Subject: [PATCH] arm64: dts: imx8mp-beacon: Configure 100MHz PCIe Ref Clk
Date: Sun,  6 Aug 2023 14:06:21 -0500	[thread overview]
Message-ID: <20230806190622.505887-1-aford173@gmail.com> (raw)

There is a I2C controlled 100MHz Reference clock used by the PCIe
controller. Configure this clock's DIF1 output to be used by
the PCIe.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
index 06e91297fb16..332269dedeee 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
@@ -23,6 +23,12 @@ chosen {
 		stdout-path = &uart2;
 	};
 
+	clk_xtal25: clk-xtal25 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
+
 	connector {
 		compatible = "usb-c-connector";
 		label = "USB-C";
@@ -246,6 +252,13 @@ pca6416_3: gpio@20 {
 		interrupt-controller;
 		#interrupt-cells = <2>;
 	};
+
+	pcieclk: clk@68 {
+		compatible = "renesas,9fgv0241";
+		reg = <0x68>;
+		clocks = <&clk_xtal25>;
+		#clock-cells = <1>;
+	};
 };
 
 &i2c3 {
@@ -372,8 +385,9 @@ &pcie {
 };
 
 &pcie_phy {
+	fsl,clkreq-unsupported;
 	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
-	clocks = <&pcie0_refclk>;
+	clocks = <&pcieclk 1>;
 	clock-names = "ref";
 	status = "okay";
 };
-- 
2.39.2


WARNING: multiple messages have this Message-ID (diff)
From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, cstevens@beaconembedded.com,
	Adam Ford <aford173@gmail.com>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org
Subject: [PATCH] arm64: dts: imx8mp-beacon: Configure 100MHz PCIe Ref Clk
Date: Sun,  6 Aug 2023 14:06:21 -0500	[thread overview]
Message-ID: <20230806190622.505887-1-aford173@gmail.com> (raw)

There is a I2C controlled 100MHz Reference clock used by the PCIe
controller. Configure this clock's DIF1 output to be used by
the PCIe.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
index 06e91297fb16..332269dedeee 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
@@ -23,6 +23,12 @@ chosen {
 		stdout-path = &uart2;
 	};
 
+	clk_xtal25: clk-xtal25 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
+
 	connector {
 		compatible = "usb-c-connector";
 		label = "USB-C";
@@ -246,6 +252,13 @@ pca6416_3: gpio@20 {
 		interrupt-controller;
 		#interrupt-cells = <2>;
 	};
+
+	pcieclk: clk@68 {
+		compatible = "renesas,9fgv0241";
+		reg = <0x68>;
+		clocks = <&clk_xtal25>;
+		#clock-cells = <1>;
+	};
 };
 
 &i2c3 {
@@ -372,8 +385,9 @@ &pcie {
 };
 
 &pcie_phy {
+	fsl,clkreq-unsupported;
 	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
-	clocks = <&pcie0_refclk>;
+	clocks = <&pcieclk 1>;
 	clock-names = "ref";
 	status = "okay";
 };
-- 
2.39.2


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             reply	other threads:[~2023-08-06 19:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-06 19:06 Adam Ford [this message]
2023-08-06 19:06 ` [PATCH] arm64: dts: imx8mp-beacon: Configure 100MHz PCIe Ref Clk Adam Ford
2023-08-06 22:03 ` Fabio Estevam
2023-08-06 22:03   ` Fabio Estevam
2023-08-06 22:20   ` Adam Ford
2023-08-06 22:20     ` Adam Ford

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