Re: [PATCH 2/2] arm64: tegra: fix p3767 QSPI speed

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On Mon, Jun 26, 2023 at 06:09:20PM +0000, Brad Griffis wrote:
> The QSPI device used in Jetson Orin NX and Nano modules (p3767) is
> the same as Jetson AGX Orin (p3701) and should have a max speed of
> 102 MHz.
> 
> Fixes: 13b0aca303e9 ("arm64: tegra: Support Jetson Orin NX")
> Signed-off-by: Brad Griffis <bgriffis@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This was originally copied from the downstream DTB and I see 136 MHz for
both P3701 and P3767 there. So now I wonder which one is correct. Should
perhaps the P3701 be updated to 136 MHz instead if that's what is being
used downstream?

Thierry

> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
> index 831a553ec387..980f15ac674d 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
> @@ -28,7 +28,7 @@ spi@3270000 {
>  			flash@0 {
>  				compatible = "jedec,spi-nor";
>  				reg = <0>;
> -				spi-max-frequency = <136000000>;
> +				spi-max-frequency = <102000000>;
>  				spi-tx-bus-width = <4>;
>  				spi-rx-bus-width = <4>;
>  			};
> -- 
> 2.25.1
> 

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