Re: [PATCH linux dev-5.3 1/4] ARM: dts: aspeed-g6: Add VUART descriptions

Andrew Jeffery andrew at aj.id.au
Thu Oct 3 09:56:11 AEST 2019



On Wed, 2 Oct 2019, at 19:53, Joel Stanley wrote:
> The AST2600 has two VUART devices.
> 
> Signed-off-by: Joel Stanley <joel at jms.id.au>
> ---
>  arch/arm/boot/dts/aspeed-g6.dtsi | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
> index 5bea04b67b5c..2ad90a906266 100644
> --- a/arch/arm/boot/dts/aspeed-g6.dtsi
> +++ b/arch/arm/boot/dts/aspeed-g6.dtsi
> @@ -29,6 +29,8 @@
>  		i2c14 = &i2c14;
>  		i2c15 = &i2c15;
>  		serial4 = &uart5;
> +		serial5 = &vuart1;
> +		serial6 = &vuart2;
>  	};
>  
>  
> @@ -475,6 +477,26 @@
>  				};
>  			};
>  
> +			vuart1: serial at 1e787000 {
> +				compatible = "aspeed,ast2500-vuart";
> +				reg = <0x1e787000 0x40>;
> +				reg-shift = <2>;
> +				interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;

For anyone playing along the IRQ isn't documented in current releases of the
datasheet, but you can find it in the SDK devicetree:

https://github.com/AspeedTech-BMC/linux/blob/3f525e22080917f5569fb853f348f5ecb089a0d9/arch/arm/boot/dts/aspeed-g6.dtsi#L516

Reviewed-by: Andrew Jeffery <andrew at aj.id.au>


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