linux-kernel - Re: [PATCH 7/7] arm64: dts: qcom: ipq9574: add PCIe2 nodes

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Date: Wed, 3 Apr 2024 09:11:41 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Alexandru Gagniuc <mr.nuke.me@...il.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: ansuelsmth@...il.com, robimarko@...il.com, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] arm64: dts: qcom: ipq9574: add PCIe2 nodes

On 02/04/2024 21:25, Alexandru Gagniuc wrote:
> On ipq9574, there are 4 PCIe controllers. Describe the pcie2 node, and
> its PHY in devicetree.
> 
> Only pcie2 is described, because only hardware using that controller
> was available for testing.
> 
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@...il.com>
> ---
>  arch/arm64/boot/dts/qcom/ipq9574.dtsi | 93 ++++++++++++++++++++++++++-
>  1 file changed, 92 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> index 7f2e5cbf3bbb..626d6359d750 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> @@ -300,7 +300,7 @@ gcc: clock-controller@...0000 {
>  				 <0>,
>  				 <0>,
>  				 <0>,
> -				 <0>,
> +				 <&pcie2_qmp_phy>,
>  				 <0>,
>  				 <0>;
>  			#clock-cells = <1>;
> @@ -745,6 +745,97 @@ frame@...8000 {
>  				status = "disabled";
>  			};
>  		};
> +
> +		pcie2_qmp_phy: phy@...00 {
> +			compatible = "qcom,ipq9574-qmp-gen3x2-pcie-phy";
> +			reg = <0x0008c000 0x14f4>;
> +
> +			clocks = <&gcc GCC_PCIE2_AUX_CLK>,
> +				 <&gcc GCC_PCIE2_AHB_CLK>,
> +				 <&gcc GCC_PCIE2_PIPE_CLK>,
> +				 <&gcc GCC_ANOC_PCIE2_2LANE_M_CLK>,
> +				 <&gcc GCC_SNOC_PCIE2_2LANE_S_CLK>;
> +			clock-names = "aux",
> +				      "cfg_ahb",
> +				      "pipe",
> +				      "anoc",
> +				      "snoc";
> +
> +			clock-output-names = "pcie_phy2_pipe_clk";
> +			#clock-cells = <0>;
> +			#phy-cells = <0>;
> +
> +			resets = <&gcc GCC_PCIE2_PHY_BCR>,
> +				 <&gcc GCC_PCIE2PHY_PHY_BCR>;
> +			reset-names = "phy",
> +				      "common";
> +			status = "disabled";
> +		};
> +
> +		pcie2: pcie@...00000 {
> +			compatible = "qcom,pcie-ipq9574";
> +			reg = <0x20000000 0xf1d>,
> +			      <0x20000f20 0xa8>,
> +			      <0x20001000 0x1000>,
> +			      <0x00088000 0x4000>,
> +			      <0x20100000 0x1000>;
> +			reg-names = "dbi", "elbi", "atu", "parf", "config";

Put ranges here.


Best regards,
Krzysztof