Re: [PATCH 2/3] arm64: dts: imx8mn-tqma8mqnl: restrict clock for SPI-NOR flash

[Frank Li]

On Tue, Oct 06, 2026 at 03:25:10PM +0200, Alexander Stein wrote:
> From: Markus Niebel <Markus.Niebel@xxxxxxxxxxxxxxx>
>
> The FlexSPI controller uses quad SPI with internal clock recovery.
> The clock is therefore restricted to 66.666666 MHz according to
> data sheet.

Which datasheet? I suppose NOR flash datasheet, can you provide link
here.

Frank

>
> Signed-off-by: Markus Niebel <Markus.Niebel@xxxxxxxxxxxxxxx>
> Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl.dtsi
> index 48a687926aa1b..c88d83243097f 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl.dtsi
> @@ -63,7 +63,7 @@ &flexspi {
>  	flash0: flash@0 {
>  		compatible = "jedec,spi-nor";
>  		reg = <0>;
> -		spi-max-frequency = <84000000>;
> +		spi-max-frequency = <66666666>;
>  		spi-tx-bus-width = <1>;
>  		spi-rx-bus-width = <4>;
>  		vcc-supply = <&buck5_reg>;
> --
> 2.55.0
>
>