[PATCH v3 2/4] arm64: dts: qcom: qcs615: enable pcie

* [PATCH v3 2/4] arm64: dts: qcom: qcs615: enable pcie
  2025-03-10  6:56 [PATCH v3 0/4] pci: qcom: Add QCS615 PCIe support Ziyue Zhang
@ 2025-03-10  6:56   ` Ziyue Zhang
  0 siblings, 0 replies; 7+ messages in thread
From: Ziyue Zhang @ 2025-03-10  6:56 UTC (permalink / raw)
  To: bhelgaas, lpieralisi, kw, manivannan.sadhasivam, robh, krzk+dt,
	conor+dt, vkoul, kishon, andersson, konradybcio, dmitry.baryshkov,
	neil.armstrong, abel.vesa
  Cc: quic_ziyuzhan, quic_qianyu, quic_krichai, johan+linaro,
	linux-arm-msm, linux-pci, devicetree, linux-kernel, linux-phy

From: Krishna chaitanya chundru <quic_krichai@quicinc.com>

Add configurations in devicetree for PCIe0, including registers, clocks,
interrupts and phy setting sequence.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Signed-off-by: Ziyue Zhang <quic_ziyuzhan@quicinc.com>
---
 arch/arm64/boot/dts/qcom/qcs615.dtsi | 142 +++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
index f4abfad474ea..282072084435 100644
--- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
@@ -1001,6 +1001,148 @@ mmss_noc: interconnect@1740000 {
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+	pcie: pcie@1c08000 {
+		device_type = "pci";
+		compatible = "qcom,pcie-sm8550", "qcom,qcs615-pcie";
+		reg = <0x0 0x01c08000 0x0 0x3000>,
+		      <0x0 0x40000000 0x0 0xf1d>,
+		      <0x0 0x40000f20 0x0 0xa8>,
+		      <0x0 0x40001000 0x0 0x1000>,
+		      <0x0 0x40100000 0x0 0x100000>,
+		      <0x0 0x01c0b000 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 = <1>;
+
+		interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 148 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 0 &intc 0 0 0 140 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 2 &intc 0 0 0 150 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 3 &intc 0 0 0 151 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 4 &intc 0 0 0 152 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>,
+			 <&rpmhcc RPMH_CXO_CLK>;
+		clock-names = "aux",
+			      "cfg",
+			      "bus_master",
+			      "bus_slave",
+			      "slave_q2a",
+			      "ref";
+		assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
+		assigned-clock-rates = <19200000>;
+
+		interconnects = <&aggre1_noc MASTER_PCIE 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 &apps_smmu 0x400 0x1>,
+			    <0x100 &apps_smmu 0x401 0x1>;
+
+		resets = <&gcc GCC_PCIE_0_BCR>;
+		reset-names = "pci";
+
+		power-domains = <&gcc PCIE_0_GDSC>;
+
+		phys = <&pcie_phy>;
+		phy-names = "pciephy";
+
+		operating-points-v2 = <&pcie_opp_table>;
+
+		status = "disabled";
+		pcie_opp_table: opp-table {
+			compatible = "operating-points-v2";
+
+			/* GEN 1 x1 */
+			opp-2500000 {
+				opp-hz = /bits/ 64 <2500000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+				opp-peak-kBps = <250000 1>;
+			};
+
+			/* GEN 2 x1 */
+			opp-5000000 {
+				opp-hz = /bits/ 64 <5000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+				opp-peak-kBps = <500000 1>;
+			};
+
+			/* GEN 3 x1 */
+			opp-8000000 {
+				opp-hz = /bits/ 64 <8000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+				opp-peak-kBps = <984500 1>;
+			};
+		};
+	};
+
+	pcie_phy: phy@1c0e000 {
+		compatible = "qcom,qcs615-qmp-gen3x1-pcie-phy";
+		reg = <0x0 0x01c0e000 0x0 0x1000>;
+
+		clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
+			 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
+			 <&gcc GCC_PCIE_0_CLKREF_CLK>,
+			 <&gcc GCC_PCIE0_PHY_REFGEN_CLK>,
+			 <&gcc GCC_PCIE_0_PIPE_CLK>;
+		clock-names = "aux",
+			      "cfg_ahb",
+			      "ref",
+			      "refgen",
+			      "pipe";
+
+		resets = <&gcc GCC_PCIE_0_PHY_BCR>;
+		reset-names = "phy";
+
+		assigned-clocks = <&gcc GCC_PCIE0_PHY_REFGEN_CLK>;
+		assigned-clock-rates = <100000000>;
+
+		#clock-cells = <0>;
+		clock-output-names = "pcie_0_pipe_clk";
+
+		#phy-cells = <0>;
+
+		status = "disabled";
+	};
+
 		ufs_mem_hc: ufshc@1d84000 {
 			compatible = "qcom,qcs615-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
 			reg = <0x0 0x01d84000 0x0 0x3000>,
-- 
2.25.1


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