2-1):DTS配置(不同的硬件配置不样,仅供参考)&pcie3x4 { status = "okay"; num-lanes = <4>; // RK1828 需 x4 通道 max-link-speed = <2>; // 强制 PCIe 2.0 (Gen2),兼容 RK1828 规格 reset-gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_LOW>; // 根据原理图确认引脚及极性 vpcie3v3-supply = <&vcc3v3_pcie>; pcie20_avdd0v85-supply = <&vcc1v8_pcie>; // 或对应 PHY 电源节点 phys = <&pcie30phy PHY_TYPE_PCIE>; pinctrl-names = "default"; pinctrl-0 = <&pcie3x4_pins>; linux,pci-domain = <0>; // 避免多控制器冲突};&pcie30phy { status = "okay"; // 若未拆分 Lane,无需配置 phymode;若拆分需参考具体硬件设计 // rockchip,pcie30-phymode = <0>; };