linux-kernel - Re: [PATCH v1] arm64: dts: rockchip: Add sata2 node to rk356x

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Date:   Sat, 26 Feb 2022 19:08:50 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     linux-rockchip@...ts.infradead.org,
        Frank Wunderlich <linux@...web.de>
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Peter Geis <pgwipeout@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] arm64: dts: rockchip: Add sata2 node to rk356x

Hi Frank,

Am Samstag, 26. Februar 2022, 14:57:24 CET schrieb Frank Wunderlich:
> From: Frank Wunderlich <frank-w@...lic-files.de>
> 
> RK356x supports up to 3 sata controllers which were compatible with the
> existing snps,dwc-ahci binding.
> 
> My board has only sata2 connected to combphy2 so only add this one.

how far does the added node diverge from the vendor kernel?

If it's pretty much similar between both, we can assume the other nodes
should work pretty well as well and therefore should all of them at once
and hope for the best?

Thanks
Heiko

> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> ---
>  arch/arm64/boot/dts/rockchip/rk356x.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> index 7cdef800cb3c..7b6c8a0c8b84 100644
> --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> @@ -230,6 +230,21 @@ scmi_shmem: sram@0 {
>  		};
>  	};
>  
> +	sata2: sata@...00000 {
> +		compatible = "snps,dwc-ahci";
> +		reg = <0 0xfc800000 0 0x1000>;
> +		clocks = <&cru ACLK_SATA2>, <&cru CLK_SATA2_PMALIVE>,
> +			 <&cru CLK_SATA2_RXOOB>;
> +		clock-names = "sata", "pmalive", "rxoob";
> +		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "hostc";
> +		phys = <&combphy2 PHY_TYPE_SATA>;
> +		phy-names = "sata-phy";
> +		ports-implemented = <0x1>;
> +		power-domains = <&power RK3568_PD_PIPE>;
> +		status = "disabled";
> +	};
> +
>  	gic: interrupt-controller@...00000 {
>  		compatible = "arm,gic-v3";
>  		reg = <0x0 0xfd400000 0 0x10000>, /* GICD */
>