linux-kernel - Re: [PATCH v3 3/3] arm64: dts: rockchip: Add sata nodes to rk356x

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Message-ID: <14a29a3f-c886-89b0-e453-1e8bee469536@gmail.com>
Date:   Mon, 28 Feb 2022 10:32:57 +0100
From:   Johan Jonker <jbx6244@...il.com>
To:     Frank Wunderlich <linux@...web.de>,
        "devicetree @ vger . kernel . org Damien Le Moal" 
        <damien.lemoal@...nsource.wdc.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Jens Axboe <axboe@...nel.dk>, linux-ide@...r.kernel.org,
        linux-kernel@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        Peter Geis <pgwipeout@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>
Subject: Re: [PATCH v3 3/3] arm64: dts: rockchip: Add sata nodes to rk356x

Hi Frank,

On 2/27/22 19:28, Frank Wunderlich wrote:
> 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.
> 
> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> ---
> changes in v3:
>   - fix combphy error by moving sata0 to rk3568.dtsi
>   - remove clock-names and interrupt-names
> changes in v2:
>   - added sata0 + 1, but have only tested sata2
> ---
>  arch/arm64/boot/dts/rockchip/rk3568.dtsi | 14 +++++++++++++
>  arch/arm64/boot/dts/rockchip/rk356x.dtsi | 26 ++++++++++++++++++++++++
>  2 files changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> index 5b0f528d6818..2a2f65899d47 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> @@ -8,6 +8,19 @@
>  / {
>  	compatible = "rockchip,rk3568";
>  
> +	sata0: sata@...00000 {

> +		compatible = "snps,dwc-ahci";

		compatible = "rockchip,rk3568-dwc-ahci", "snps,dwc-ahci";

Compatible strings must be SoC orientated.
By using a fall back string the driver doesn't have to be changed for
every new SoC.
Add binding in extra patch.

> +		reg = <0 0xfc000000 0 0x1000>;
> +		clocks = <&cru ACLK_SATA0>, <&cru CLK_SATA0_PMALIVE>,
> +			 <&cru CLK_SATA0_RXOOB>;
> +		interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
> +		phys = <&combphy0 PHY_TYPE_SATA>;
> +		phy-names = "sata-phy";
> +		ports-implemented = <0x1>;
> +		power-domains = <&power RK3568_PD_PIPE>;
> +		status = "disabled";
> +	};
> +
>  	pipe_phy_grf0: syscon@...70000 {
>  		compatible = "rockchip,rk3568-pipe-phy-grf", "syscon";
>  		reg = <0x0 0xfdc70000 0x0 0x1000>;
> @@ -114,3 +127,4 @@ power-domain@...568_PD_PIPE {
>  		#power-domain-cells = <0>;
>  	};
>  };
> +
> diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> index 7cdef800cb3c..484c5ace718a 100644
> --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> @@ -230,6 +230,32 @@ scmi_shmem: sram@0 {
>  		};
>  	};
>  
> +	sata1: sata@...00000 {

> +		compatible = "snps,dwc-ahci";

dito

> +		reg = <0 0xfc400000 0 0x1000>;
> +		clocks = <&cru ACLK_SATA1>, <&cru CLK_SATA1_PMALIVE>,
> +			 <&cru CLK_SATA1_RXOOB>;
> +		interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
> +		phys = <&combphy1 PHY_TYPE_SATA>;
> +		phy-names = "sata-phy";
> +		ports-implemented = <0x1>;
> +		power-domains = <&power RK3568_PD_PIPE>;
> +		status = "disabled";
> +	};
> +
> +	sata2: sata@...00000 {

> +		compatible = "snps,dwc-ahci";

dito

> +		reg = <0 0xfc800000 0 0x1000>;
> +		clocks = <&cru ACLK_SATA2>, <&cru CLK_SATA2_PMALIVE>,
> +			 <&cru CLK_SATA2_RXOOB>;
> +		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
> +		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 */