This declares the clock controller and the necessary 48 Mhz reference clock in the WPCM450 device. Switching devices over to the clock controller is intentionally done in a separate patch to give time for the clock controller driver to land. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@xxxxxxx> --- v3: - Change clock-output-names and clock-names from "refclk" to "ref" v2: - https://lore.kernel.org/lkml/20220429172030.398011-6-j.neuschaefer@xxxxxxx/ - no changes --- arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/nuvoton-wpcm450.dtsi b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi index 1c63ab14c4383..515e943787416 100644 --- a/arch/arm/boot/dts/nuvoton-wpcm450.dtsi +++ b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi @@ -39,6 +39,14 @@ clk24m: clock-24mhz { #clock-cells = <0>; }; + refclk: clock-48mhz { + /* 48 MHz reference oscillator */ + compatible = "fixed-clock"; + clock-output-names = "ref"; + clock-frequency = <48000000>; + #clock-cells = <0>; + }; + soc { compatible = "simple-bus"; #address-cells = <1>; @@ -51,6 +59,15 @@ gcr: syscon@b0000000 { reg = <0xb0000000 0x200>; }; + clk: clock-controller@b0000200 { + compatible = "nuvoton,wpcm450-clk"; + reg = <0xb0000200 0x100>; + clocks = <&refclk>; + clock-names = "ref"; + #clock-cells = <1>; + #reset-cells = <1>; + }; + serial0: serial@b8000000 { compatible = "nuvoton,wpcm450-uart"; reg = <0xb8000000 0x20>; -- 2.35.1
