[PATCH v2 11/32] arm: dts: mt7622: force high-speed mode for uart

[Daniel Golle]

On Wed, Aug 31, 2022 at 07:04:34PM +0800, Weijie Gao wrote:
> The input clock for uart is too slow (25MHz) which introduces frequent data
> error on both receiving and transmitting even if the baudrate is 115200.
> 
> Using high-speed can significantly solve this issue.

Tested on Bananapi BPi-R64 (MT7622).
Fixes unstable console issues previously observed on MT7622 systems.

Tested-by: Daniel Golle <daniel at makrotopia.org>

> 
> Reviewed-by: Simon Glass <sjg at chromium.org>
> Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
> ---
> v2 changes: none
> ---
>  arch/arm/dts/mt7622.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/dts/mt7622.dtsi b/arch/arm/dts/mt7622.dtsi
> index 0127474c95..fb6c1b7154 100644
> --- a/arch/arm/dts/mt7622.dtsi
> +++ b/arch/arm/dts/mt7622.dtsi
> @@ -175,6 +175,7 @@
>  		status = "disabled";
>  		assigned-clocks = <&topckgen CLK_TOP_AXI_SEL>;
>  		assigned-clock-parents = <&topckgen CLK_TOP_SYSPLL1_D2>;
> +		mediatek,force-highspeed;
>  	};
>  
>  	mmc0: mmc at 11230000 {
> -- 
> 2.17.1
>