linux-kernel - [PATCH v23 2/3] arm64: dts: nuvoton: npcm8xx: add reference 25m clock

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Date: Wed, 31 Jan 2024 20:26:52 +0200
From: Tomer Maimon <tmaimon77@...il.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>, <robh+dt@...nel.org>,
	<krzysztof.kozlowski+dt@...aro.org>, <tali.perry1@...il.com>,
	<joel@....id.au>, <venture@...gle.com>, <yuenn@...gle.com>,
	<benjaminfair@...gle.com>
CC: <openbmc@...ts.ozlabs.org>, <linux-clk@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>, Tomer Maimon
	<tmaimon77@...il.com>
Subject: [PATCH v23 2/3] arm64: dts: nuvoton: npcm8xx: add reference 25m clock

Add 25Mhz reference clock that to the clock node since the reference
clock in not a part of Nuvoton BMC NPCM8XX SoC.

Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
 arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 2 ++
 arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts     | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
index ecd171b2feba..f10027c14e63 100644
--- a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
+++ b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
@@ -58,6 +58,8 @@ clk: clock-controller@...01000 {
 			compatible = "nuvoton,npcm845-clk";
 			#clock-cells = <1>;
 			reg = <0x0 0xf0801000 0x0 0x1000>;
+			clocks = <&refclk>;
+			clock-names = "refclk";
 		};
 
 		apb {
diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
index a5ab2bc0f835..722a46d78d23 100644
--- a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
+++ b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
@@ -19,6 +19,12 @@ chosen {
 	memory {
 		reg = <0x0 0x0 0x0 0x40000000>;
 	};
+
+	refclk: refclk-25mhz {
+		compatible = "fixed-clock";
+		clock-frequency = <25000000>;
+		#clock-cells = <0>;
+	};
 };
 
 &serial0 {
-- 
2.34.1