[PATCH 5/5] arch: arm64: dts: qcom: Add support for PCIe3a

From: Qiang Yu

Date: Wed Mar 04 2026 - 03:24:10 EST

Describe PCIe3a controller and PHY. Also add required system resources
like regulators, clocks, interrupts and registers configuration for PCIe3a.

Signed-off-by: Qiang Yu <qiang.yu@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/glymur.dtsi | 314 ++++++++++++++++++++++++++++++++++-
1 file changed, 313 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/glymur.dtsi b/arch/arm64/boot/dts/qcom/glymur.dtsi
index e269cec7942c85447892c0661f83171eded94f3b..9b8037007c61b9fd1090ec10f6c8a8c1b414b7ca 100644
--- a/arch/arm64/boot/dts/qcom/glymur.dtsi
+++ b/arch/arm64/boot/dts/qcom/glymur.dtsi
@@ -736,7 +736,7 @@ gcc: clock-controller@100000 {
<0>, /* USB 2 Phy PCIE PIPEGMUX */
<0>, /* USB 2 Phy PIPEGMUX */
<0>, /* USB 2 Phy SYS PCIE PIPEGMUX */
- <0>, /* PCIe 3a */
+ <&pcie3a_phy>, /* PCIe 3a */
<&pcie3b_phy>, /* PCIe 3b */
<&pcie4_phy>, /* PCIe 4 */
<&pcie5_phy>, /* PCIe 5 */
@@ -2360,6 +2360,318 @@ pcie_west_slv_noc: interconnect@1920000 {
#interconnect-cells = <2>;
};

+ pcie3a: pci@1c10000 {
+ device_type = "pci";
+ compatible = "qcom,glymur-pcie", "qcom,pcie-x1e80100";
+ reg = <0x0 0x01c10000 0x0 0x3000>,
+ <0x0 0x70000000 0x0 0xf20>,
+ <0x0 0x70000f40 0x0 0xa8>,
+ <0x0 0x70001000 0x0 0x4000>,
+ <0x0 0x70100000 0x0 0x100000>,
+ <0x0 0x01c13000 0x0 0x1000>;
+ reg-names = "parf",
+ "dbi",
+ "elbi",
+ "atu",
+ "config",
+ "mhi";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges = <0x01000000 0x0 0x00000000 0x0 0x70200000 0x0 0x100000>,
+ <0x02000000 0x0 0x70000000 0x0 0x70300000 0x0 0x3d00000>,
+ <0x03000000 0x7 0x00000000 0x7 0x00000000 0x0 0x40000000>;
+ bus-range = <0 0xff>;
+
+ dma-coherent;
+
+ linux,pci-domain = <3>;
+ num-lanes = <8>;
+
+ operating-points-v2 = <&pcie3a_opp_table>;
+
+ msi-map = <0x0 &gic_its 0xb0000 0x10000>;
+ iommu-map = <0x0 &pcie_smmu 0x30000 0x10000>;
+
+ interrupts = <GIC_SPI 948 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 949 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 844 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 845 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 846 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 847 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 942 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 0 0 0 848 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 2 &intc 0 0 0 849 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 3 &intc 0 0 0 850 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 4 &intc 0 0 0 851 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&gcc GCC_PCIE_3A_AUX_CLK>,
+ <&gcc GCC_PCIE_3A_CFG_AHB_CLK>,
+ <&gcc GCC_PCIE_3A_MSTR_AXI_CLK>,
+ <&gcc GCC_PCIE_3A_SLV_AXI_CLK>,
+ <&gcc GCC_PCIE_3A_SLV_Q2A_AXI_CLK>,
+ <&gcc GCC_AGGRE_NOC_PCIE_3A_WEST_SF_AXI_CLK>;
+ clock-names = "aux",
+ "cfg",
+ "bus_master",
+ "bus_slave",
+ "slave_q2a",
+ "noc_aggr";
+
+ assigned-clocks = <&gcc GCC_PCIE_3A_AUX_CLK>;
+ assigned-clock-rates = <19200000>;
+
+ interconnects = <&pcie_west_anoc MASTER_PCIE_3A QCOM_ICC_TAG_ALWAYS
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+ <&hsc_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
+ &pcie_west_slv_noc SLAVE_PCIE_3A QCOM_ICC_TAG_ALWAYS>;
+ interconnect-names = "pcie-mem",
+ "cpu-pcie";
+
+ resets = <&gcc GCC_PCIE_3A_BCR>,
+ <&gcc GCC_PCIE_3A_LINK_DOWN_BCR>;
+ reset-names = "pci",
+ "link_down";
+
+ power-domains = <&gcc GCC_PCIE_3A_GDSC>;
+
+ eq-presets-8gts = /bits/ 16 <0x5555 0x5555 0x5555 0x5555
+ 0x5555 0x5555 0x5555 0x5555>;
+ eq-presets-16gts = /bits/ 8 <0x55 0x55 0x55 0x55 0x55 0x55 0x55 0x55>;
+ eq-presets-32gts = /bits/ 8 <0x55 0x55 0x55 0x55 0x55 0x55 0x55 0x55>;
+
+ status = "disabled";
+
+ pcie3a_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ /* GEN 1 x1 */
+ opp-2500000-1 {
+ opp-hz = /bits/ 64 <2500000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <250000 1>;
+ opp-level = <1>;
+ };
+
+ /* GEN 1 x2 */
+ opp-5000000-1 {
+ opp-hz = /bits/ 64 <5000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <500000 1>;
+ opp-level = <1>;
+ };
+
+ /* GEN 1 x4 */
+ opp-10000000-1 {
+ opp-hz = /bits/ 64 <10000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <1000000 1>;
+ opp-level = <1>;
+ };
+
+ /* GEN 1 x8 */
+ opp-20000000-1 {
+ opp-hz = /bits/ 64 <20000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <2000000 1>;
+ opp-level = <1>;
+ };
+
+ /* GEN 2 x1 */
+ opp-5000000-2 {
+ opp-hz = /bits/ 64 <5000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <500000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 2 x2 */
+ opp-10000000-2 {
+ opp-hz = /bits/ 64 <10000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <1000000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 2 x4 */
+ opp-20000000-2 {
+ opp-hz = /bits/ 64 <20000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <2000000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 2 x8 */
+ opp-40000000-2 {
+ opp-hz = /bits/ 64 <40000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <4000000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 3 x1 */
+ opp-8000000-3 {
+ opp-hz = /bits/ 64 <8000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <984500 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x2 */
+ opp-16000000-3 {
+ opp-hz = /bits/ 64 <16000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <1969000 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x4 */
+ opp-32000000-3 {
+ opp-hz = /bits/ 64 <32000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <3938000 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x8 */
+ opp-64000000-3 {
+ opp-hz = /bits/ 64 <64000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <7876000 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 4 x1 */
+ opp-16000000-4 {
+ opp-hz = /bits/ 64 <16000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <1969000 1>;
+ opp-level = <4>;
+ };
+
+ /* GEN 4 x2 */
+ opp-32000000-4 {
+ opp-hz = /bits/ 64 <32000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <3938000 1>;
+ opp-level = <4>;
+ };
+
+ /* GEN 4 x4 */
+ opp-64000000-4 {
+ opp-hz = /bits/ 64 <64000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <7876000 1>;
+ opp-level = <4>;
+ };
+
+ /* GEN 4 x8 */
+ opp-128000000-4 {
+ opp-hz = /bits/ 64 <128000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <15753000 1>;
+ opp-level = <4>;
+ };
+
+ /* GEN 5 x1 */
+ opp-32000000-5 {
+ opp-hz = /bits/ 64 <32000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ opp-peak-kBps = <3938000 1>;
+ opp-level = <5>;
+ };
+
+ /* GEN 5 x2 */
+ opp-64000000-5 {
+ opp-hz = /bits/ 64 <64000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ opp-peak-kBps = <7876000 1>;
+ opp-level = <5>;
+ };
+
+ /* GEN 5 x4 */
+ opp-128000000-5 {
+ opp-hz = /bits/ 64 <128000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ opp-peak-kBps = <15753000 1>;
+ opp-level = <5>;
+ };
+
+ /* GEN 5 x8 */
+ opp-256000000-5 {
+ opp-hz = /bits/ 64 <256000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ opp-peak-kBps = <31506000 1>;
+ opp-level = <5>;
+ };
+ };
+
+ pcie3a_port0: pcie@0 {
+ device_type = "pci";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+
+ phys = <&pcie3a_phy>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
+ };
+
+ pcie3a_phy: phy@f00000 {
+ compatible = "qcom,glymur-qmp-gen5x8-pcie-phy";
+ reg = <0 0x00f00000 0 0x10000>;
+
+ clocks = <&gcc GCC_PCIE_PHY_3A_AUX_CLK>,
+ <&gcc GCC_PCIE_3A_CFG_AHB_CLK>,
+ <&tcsr TCSR_PCIE_3_CLKREF_EN>,
+ <&gcc GCC_PCIE_3A_PHY_RCHNG_CLK>,
+ <&gcc GCC_PCIE_3A_PIPE_CLK>,
+ <&gcc GCC_PCIE_PHY_3B_AUX_CLK>;
+ clock-names = "aux",
+ "cfg_ahb",
+ "ref",
+ "rchng",
+ "pipe",
+ "phy_b_aux";
+
+ resets = <&gcc GCC_PCIE_3A_PHY_BCR>,
+ <&gcc GCC_PCIE_3A_NOCSR_COM_PHY_BCR>,
+ <&gcc GCC_PCIE_3B_PHY_BCR>,
+ <&gcc GCC_PCIE_3B_NOCSR_COM_PHY_BCR>;
+ reset-names = "phy",
+ "phy_nocsr",
+ "phy_b",
+ "phy_b_nocsr";
+
+ assigned-clocks = <&gcc GCC_PCIE_3A_PHY_RCHNG_CLK>;
+ assigned-clock-rates = <100000000>;
+
+ power-domains = <&gcc GCC_PCIE_3A_PHY_GDSC>,
+ <&gcc GCC_PCIE_3B_PHY_GDSC>;
+
+ #clock-cells = <0>;
+ clock-output-names = "pcie3a_pipe_clk";
+
+ #phy-cells = <0>;
+
+ status = "disabled";
+ };
+
pcie4: pci@1bf0000 {
device_type = "pci";
compatible = "qcom,glymur-pcie", "qcom,pcie-x1e80100";

--
2.34.1