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X-OriginatorOrg: nuvoton.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jul 2025 13:42:22.0450 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f632c777-5207-4162-1c5d-08ddbc92ef3a X-MS-Exchange-CrossTenant-Id: a3f24931-d403-4b4a-94f1-7d83ac638e07 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=a3f24931-d403-4b4a-94f1-7d83ac638e07;Ip=[175.98.123.7];Helo=[NTHCCAS02.nuvoton.com] X-MS-Exchange-CrossTenant-AuthSource: TY2PEPF0000AB85.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TY1PPF538CF1BBD Add a 25 MHz fixed-clock node (refclk) in the NPCM845-EVB board device tree to represent the external reference clock used by the NPCM845 reset and clock controller. Update peripherals (timer0, watchdog0-2) in the NPCM845 device tree to reference this refclk directly instead of the previous clock controller output (NPCM8XX_CLK_REFCLK). Depends-on: arm64: dts: nuvoton: Combine NPCM845 reset and clk nodes Signed-off-by: Tomer Maimon --- arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 9 +++++---- arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts | 6 ++++++ 2 files changed, 11 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 2a36d0b2824e..04a5029bfc7e 100644 --- a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi +++ b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi @@ -52,6 +52,7 @@ clk: rstc: reset-controller@f0801000 { reg = <0x0 0xf0801000 0x0 0xC4>; nuvoton,sysgcr = <&gcr>; #reset-cells = <2>; + clocks = <&refclk>; #clock-cells = <1>; }; @@ -76,7 +77,7 @@ timer0: timer@8000 { compatible = "nuvoton,npcm845-timer"; interrupts = ; reg = <0x8000 0x1C>; - clocks = <&clk NPCM8XX_CLK_REFCLK>; + clocks = <&refclk>; clock-names = "refclk"; }; @@ -148,7 +149,7 @@ watchdog0: watchdog@801c { interrupts = ; reg = <0x801c 0x4>; status = "disabled"; - clocks = <&clk NPCM8XX_CLK_REFCLK>; + clocks = <&refclk>; syscon = <&gcr>; }; @@ -157,7 +158,7 @@ watchdog1: watchdog@901c { interrupts = ; reg = <0x901c 0x4>; status = "disabled"; - clocks = <&clk NPCM8XX_CLK_REFCLK>; + clocks = <&refclk>; syscon = <&gcr>; }; @@ -166,7 +167,7 @@ watchdog2: watchdog@a01c { interrupts = ; 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 eeceb5b292a8..2638ee1c3846 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@0 { reg = <0x0 0x0 0x0 0x40000000>; }; + + refclk: refclk-25mhz { + compatible = "fixed-clock"; + clock-frequency = <25000000>; + #clock-cells = <0>; + }; }; &serial0 { -- 2.34.1