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X-OriginatorOrg: nuvoton.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jul 2025 13:42:18.7782 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6a02e867-afef-407e-9b05-08ddbc92ed47 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: KL1PR03MB8317 Content-Type: text/plain; charset="utf-8" Combine the NPCM845 reset and clock controller nodes into a single node with compatible "nuvoton,npcm845-reset" in nuvoton-common-npcm8xx.dtsi, using the auxiliary device framework to provide clock functionality. Update the register range to 0xC4 to cover the shared reset and clock registers at 0xf0801000. Remove the separate nuvoton,npcm845-clk node, as the reset driver now handles clocks via an auxiliary device. Signed-off-by: Tomer Maimon --- .../boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi b/arch= /arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi index fead4dde590d..2a36d0b2824e 100644 --- a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi +++ b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi @@ -47,17 +47,12 @@ ahb { interrupt-parent =3D <&gic>; ranges; =20 - rstc: reset-controller@f0801000 { + clk: rstc: reset-controller@f0801000 { compatible =3D "nuvoton,npcm845-reset"; - reg =3D <0x0 0xf0801000 0x0 0x78>; - #reset-cells =3D <2>; + reg =3D <0x0 0xf0801000 0x0 0xC4>; nuvoton,sysgcr =3D <&gcr>; - }; - - clk: clock-controller@f0801000 { - compatible =3D "nuvoton,npcm845-clk"; + #reset-cells =3D <2>; #clock-cells =3D <1>; - reg =3D <0x0 0xf0801000 0x0 0x1000>; }; =20 apb { --=20 2.34.1 From nobody Tue Oct 7 21:00:22 2025 Received: from TYDPR03CU002.outbound.protection.outlook.com (mail-japaneastazrln10223027.outbound.protection.outlook.com [52.103.171.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C55EC2AD0B; 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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 Content-Type: text/plain; charset="utf-8" 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 =3D <0x0 0xf0801000 0x0 0xC4>; nuvoton,sysgcr =3D <&gcr>; #reset-cells =3D <2>; + clocks =3D <&refclk>; #clock-cells =3D <1>; }; =20 @@ -76,7 +77,7 @@ timer0: timer@8000 { compatible =3D "nuvoton,npcm845-timer"; interrupts =3D ; reg =3D <0x8000 0x1C>; - clocks =3D <&clk NPCM8XX_CLK_REFCLK>; + clocks =3D <&refclk>; clock-names =3D "refclk"; }; =20 @@ -148,7 +149,7 @@ watchdog0: watchdog@801c { interrupts =3D ; reg =3D <0x801c 0x4>; status =3D "disabled"; - clocks =3D <&clk NPCM8XX_CLK_REFCLK>; + clocks =3D <&refclk>; syscon =3D <&gcr>; }; =20 @@ -157,7 +158,7 @@ watchdog1: watchdog@901c { interrupts =3D ; reg =3D <0x901c 0x4>; status =3D "disabled"; - clocks =3D <&clk NPCM8XX_CLK_REFCLK>; + clocks =3D <&refclk>; syscon =3D <&gcr>; }; =20 @@ -166,7 +167,7 @@ watchdog2: watchdog@a01c { interrupts =3D ; reg =3D <0xa01c 0x4>; status =3D "disabled"; - clocks =3D <&clk NPCM8XX_CLK_REFCLK>; + clocks =3D <&refclk>; syscon =3D <&gcr>; }; }; diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts b/arch/arm= 64/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 =3D <0x0 0x0 0x0 0x40000000>; }; + + refclk: refclk-25mhz { + compatible =3D "fixed-clock"; + clock-frequency =3D <25000000>; + #clock-cells =3D <0>; + }; }; =20 &serial0 { --=20 2.34.1