linux-kernel - [PATCH v22 2/8] arm64: dts: nuvoton: npcm8xx: add refernace clock

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Date: Mon, 8 Jan 2024 15:54:15 +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 v22 2/8] arm64: dts: nuvoton: npcm8xx: add refernace clock

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

Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
 .../arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 10 ++++++----
 arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts    |  6 ++++++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
index ecd171b2feba..9c4df91031e7 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 {
@@ -81,7 +83,7 @@ timer0: timer@...0 {
 				compatible = "nuvoton,npcm845-timer";
 				interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x8000 0x1C>;
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				clock-names = "refclk";
 			};
 
@@ -153,7 +155,7 @@ watchdog0: watchdog@...c {
 				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x801c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 
@@ -162,7 +164,7 @@ watchdog1: watchdog@...c {
 				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x901c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 
@@ -171,7 +173,7 @@ watchdog2: watchdog@...c {
 				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0xa01c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 		};
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