Re: [PATCH v4 5/8] arm64: dts: qcom: qcs8300: enable pcie0

[Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>]

On Mon, Mar 10, 2025 at 02:31:00PM +0800, Ziyue Zhang wrote:
> Add configurations in devicetree for PCIe0, including registers, clocks,
> interrupts and phy setting sequence.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> Signed-off-by: Ziyue Zhang <quic_ziyuzhan@quicinc.com>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

- Mani

> ---
>  arch/arm64/boot/dts/qcom/qcs8300.dtsi | 168 +++++++++++++++++++++++++-
>  1 file changed, 167 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> index 4a057f7c0d9f..5d05640c5e21 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> @@ -601,7 +601,7 @@ gcc: clock-controller@100000 {
>  			#power-domain-cells = <1>;
>  			clocks = <&rpmhcc RPMH_CXO_CLK>,
>  				 <&sleep_clk>,
> -				 <0>,
> +				 <&pcie0_phy>,
>  				 <0>,
>  				 <0>,
>  				 <0>,
> @@ -711,6 +711,172 @@ mmss_noc: interconnect@17a0000 {
>  			qcom,bcm-voters = <&apps_bcm_voter>;
>  		};
>  
> +		pcie0: pci@1c00000 {
> +			device_type = "pci";
> +			compatible = "qcom,pcie-qcs8300", "qcom,pcie-sa8775p";
> +			reg = <0x0 0x01c00000 0x0 0x3000>,
> +			      <0x0 0x40000000 0x0 0xf20>,
> +			      <0x0 0x40000f20 0x0 0xa8>,
> +			      <0x0 0x40001000 0x0 0x4000>,
> +			      <0x0 0x40100000 0x0 0x100000>,
> +			      <0x0 0x01c03000 0x0 0x1000>;
> +			reg-names = "parf",
> +				    "dbi",
> +				    "elbi",
> +				    "atu",
> +				    "config",
> +				    "mhi";
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
> +				 <0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x1fd00000>;
> +			bus-range = <0x00 0xff>;
> +
> +			dma-coherent;
> +
> +			linux,pci-domain = <0>;
> +			num-lanes = <2>;
> +
> +			interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 314 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "msi0",
> +					  "msi1",
> +					  "msi2",
> +					  "msi3",
> +					  "msi4",
> +					  "msi5",
> +					  "msi6",
> +					  "msi7",
> +					  "global";
> +
> +			#interrupt-cells = <1>;
> +			interrupt-map-mask = <0 0 0 0x7>;
> +			interrupt-map = <0 0 0 1 &intc GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
> +					<0 0 0 2 &intc GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
> +					<0 0 0 3 &intc GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>,
> +					<0 0 0 4 &intc GIC_SPI 439 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
> +				 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> +				 <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
> +				 <&gcc GCC_PCIE_0_SLV_AXI_CLK>,
> +				 <&gcc GCC_PCIE_0_SLV_Q2A_AXI_CLK>;
> +			clock-names = "aux",
> +				      "cfg",
> +				      "bus_master",
> +				      "bus_slave",
> +				      "slave_q2a";
> +
> +			assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
> +			assigned-clock-rates = <19200000>;
> +
> +			interconnects = <&pcie_anoc MASTER_PCIE_0 QCOM_ICC_TAG_ALWAYS
> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
> +					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &config_noc SLAVE_PCIE_0 QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			interconnect-names = "pcie-mem",
> +					     "cpu-pcie";
> +
> +			iommu-map = <0x0 &pcie_smmu 0x0000 0x1>,
> +				    <0x100 &pcie_smmu 0x0001 0x1>;
> +
> +			resets = <&gcc GCC_PCIE_0_BCR>,
> +				 <&gcc GCC_PCIE_0_LINK_DOWN_BCR>;
> +			reset-names = "pci",
> +				      "link_down";
> +
> +			power-domains = <&gcc GCC_PCIE_0_GDSC>;
> +
> +			phys = <&pcie0_phy>;
> +			phy-names = "pciephy";
> +
> +			status = "disabled";
> +
> +			pcie3_opp_table: opp-table {
> +				compatible = "operating-points-v2";
> +
> +				/* GEN 1 x1 */
> +				opp-2500000 {
> +					opp-hz = /bits/ 64 <2500000>;
> +					required-opps = <&rpmhpd_opp_svs_l1>;
> +					opp-peak-kBps = <250000 1>;
> +				};
> +
> +				/* GEN 1 x2 and GEN 2 x1 */
> +				opp-5000000 {
> +					opp-hz = /bits/ 64 <5000000>;
> +					required-opps = <&rpmhpd_opp_svs_l1>;
> +					opp-peak-kBps = <500000 1>;
> +				};
> +
> +				/* GEN 2 x2 */
> +				opp-10000000 {
> +					opp-hz = /bits/ 64 <10000000>;
> +					required-opps = <&rpmhpd_opp_svs_l1>;
> +					opp-peak-kBps = <1000000 1>;
> +				};
> +
> +				/* GEN 3 x1 */
> +				opp-8000000 {
> +					opp-hz = /bits/ 64 <8000000>;
> +					required-opps = <&rpmhpd_opp_svs_l1>;
> +					opp-peak-kBps = <984500 1>;
> +				};
> +
> +				/* GEN 3 x2 and GEN 4 x1 */
> +				opp-16000000 {
> +					opp-hz = /bits/ 64 <16000000>;
> +					required-opps = <&rpmhpd_opp_nom>;
> +					opp-peak-kBps = <1969000 1>;
> +				};
> +
> +				/* GEN 4 x2 */
> +				opp-32000000 {
> +					opp-hz = /bits/ 64 <32000000>;
> +					required-opps = <&rpmhpd_opp_nom>;
> +					opp-peak-kBps = <3938000 1>;
> +				};
> +			};
> +		};
> +
> +		pcie0_phy: phy@1c04000 {
> +			compatible = "qcom,qcs8300-qmp-gen4x2-pcie-phy";
> +			reg = <0x0 0x01c04000 0x0 0x2000>;
> +
> +			clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> +				 <&gcc GCC_PCIE_CLKREF_EN>,
> +				 <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>,
> +				 <&gcc GCC_PCIE_0_PIPE_CLK>,
> +				 <&gcc GCC_PCIE_0_PIPEDIV2_CLK>,
> +				 <&gcc GCC_PCIE_0_PHY_AUX_CLK>;
> +			clock-names = "cfg_ahb",
> +				      "ref",
> +				      "rchng",
> +				      "pipe",
> +				      "pipediv2",
> +				      "phy_aux";
> +
> +			resets = <&gcc GCC_PCIE_0_PHY_BCR>;
> +			reset-names = "phy";
> +
> +			assigned-clocks = <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>;
> +			assigned-clock-rates = <100000000>;
> +
> +			#clock-cells = <0>;
> +			clock-output-names = "pcie_0_pipe_clk";
> +
> +			#phy-cells = <0>;
> +
> +			status = "disabled";
> +		};
> +
>  		ufs_mem_hc: ufs@1d84000 {
>  			compatible = "qcom,qcs8300-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
>  			reg = <0x0 0x01d84000 0x0 0x3000>;
> -- 
> 2.34.1
> 

-- 
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