| * Qualcomm PCI express root complex |
| |
| - compatible: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Value should contain |
| - "qcom,pcie-ipq8064" for ipq8064 |
| - "qcom,pcie-ipq8064-v2" for ipq8064 rev 2 or ipq8065 |
| - "qcom,pcie-apq8064" for apq8064 |
| - "qcom,pcie-apq8084" for apq8084 |
| - "qcom,pcie-msm8996" for msm8996 or apq8096 |
| - "qcom,pcie-ipq4019" for ipq4019 |
| - "qcom,pcie-ipq8074" for ipq8074 |
| - "qcom,pcie-qcs404" for qcs404 |
| - "qcom,pcie-sdm845" for sdm845 |
| - "qcom,pcie-sm8250" for sm8250 |
| |
| - reg: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: Register ranges as listed in the reg-names property |
| |
| - reg-names: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Must include the following entries |
| - "parf" Qualcomm specific registers |
| - "dbi" DesignWare PCIe registers |
| - "elbi" External local bus interface registers |
| - "config" PCIe configuration space |
| - "atu" ATU address space (optional) |
| |
| - device_type: |
| Usage: required |
| Value type: <string> |
| Definition: Should be "pci". As specified in designware-pcie.txt |
| |
| - #address-cells: |
| Usage: required |
| Value type: <u32> |
| Definition: Should be 3. As specified in designware-pcie.txt |
| |
| - #size-cells: |
| Usage: required |
| Value type: <u32> |
| Definition: Should be 2. As specified in designware-pcie.txt |
| |
| - ranges: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: As specified in designware-pcie.txt |
| |
| - interrupts: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: MSI interrupt |
| |
| - interrupt-names: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Should contain "msi" |
| |
| - #interrupt-cells: |
| Usage: required |
| Value type: <u32> |
| Definition: Should be 1. As specified in designware-pcie.txt |
| |
| - interrupt-map-mask: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: As specified in designware-pcie.txt |
| |
| - interrupt-map: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: As specified in designware-pcie.txt |
| |
| - clocks: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: List of phandle and clock specifier pairs as listed |
| in clock-names property |
| |
| - clock-names: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "iface" Configuration AHB clock |
| |
| - clock-names: |
| Usage: required for ipq/apq8064 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "core" Clocks the pcie hw block |
| - "phy" Clocks the pcie PHY block |
| - "aux" Clocks the pcie AUX block |
| - "ref" Clocks the pcie ref block |
| - clock-names: |
| Usage: required for apq8084/ipq4019 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "aux" Auxiliary (AUX) clock |
| - "bus_master" Master AXI clock |
| - "bus_slave" Slave AXI clock |
| |
| - clock-names: |
| Usage: required for msm8996/apq8096 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "pipe" Pipe Clock driving internal logic |
| - "aux" Auxiliary (AUX) clock |
| - "cfg" Configuration clock |
| - "bus_master" Master AXI clock |
| - "bus_slave" Slave AXI clock |
| |
| - clock-names: |
| Usage: required for ipq8074 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "iface" PCIe to SysNOC BIU clock |
| - "axi_m" AXI Master clock |
| - "axi_s" AXI Slave clock |
| - "ahb" AHB clock |
| - "aux" Auxiliary clock |
| |
| - clock-names: |
| Usage: required for qcs404 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "iface" AHB clock |
| - "aux" Auxiliary clock |
| - "master_bus" AXI Master clock |
| - "slave_bus" AXI Slave clock |
| |
| -clock-names: |
| Usage: required for sdm845 and sm8250 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "aux" Auxiliary clock |
| - "cfg" Configuration clock |
| - "bus_master" Master AXI clock |
| - "bus_slave" Slave AXI clock |
| - "slave_q2a" Slave Q2A clock |
| - "tbu" PCIe TBU clock |
| - "pipe" PIPE clock |
| |
| - resets: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: List of phandle and reset specifier pairs as listed |
| in reset-names property |
| |
| - reset-names: |
| Usage: required for ipq/apq8064 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "axi" AXI reset |
| - "ahb" AHB reset |
| - "por" POR reset |
| - "pci" PCI reset |
| - "phy" PHY reset |
| |
| - reset-names: |
| Usage: required for apq8084 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "core" Core reset |
| |
| - reset-names: |
| Usage: required for ipq/apq8064 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "axi_m" AXI master reset |
| - "axi_s" AXI slave reset |
| - "pipe" PIPE reset |
| - "axi_m_vmid" VMID reset |
| - "axi_s_xpu" XPU reset |
| - "parf" PARF reset |
| - "phy" PHY reset |
| - "axi_m_sticky" AXI sticky reset |
| - "pipe_sticky" PIPE sticky reset |
| - "pwr" PWR reset |
| - "ahb" AHB reset |
| - "phy_ahb" PHY AHB reset |
| - "ext" EXT reset |
| |
| - reset-names: |
| Usage: required for ipq8074 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "pipe" PIPE reset |
| - "sleep" Sleep reset |
| - "sticky" Core Sticky reset |
| - "axi_m" AXI Master reset |
| - "axi_s" AXI Slave reset |
| - "ahb" AHB Reset |
| - "axi_m_sticky" AXI Master Sticky reset |
| |
| - reset-names: |
| Usage: required for qcs404 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "axi_m" AXI Master reset |
| - "axi_s" AXI Slave reset |
| - "axi_m_sticky" AXI Master Sticky reset |
| - "pipe_sticky" PIPE sticky reset |
| - "pwr" PWR reset |
| - "ahb" AHB reset |
| |
| - reset-names: |
| Usage: required for sdm845 and sm8250 |
| Value type: <stringlist> |
| Definition: Should contain the following entries |
| - "pci" PCIe core reset |
| |
| - power-domains: |
| Usage: required for apq8084 and msm8996/apq8096 |
| Value type: <prop-encoded-array> |
| Definition: A phandle and power domain specifier pair to the |
| power domain which is responsible for collapsing |
| and restoring power to the peripheral |
| |
| - vdda-supply: |
| Usage: required |
| Value type: <phandle> |
| Definition: A phandle to the core analog power supply |
| |
| - vdda_phy-supply: |
| Usage: required for ipq/apq8064 |
| Value type: <phandle> |
| Definition: A phandle to the analog power supply for PHY |
| |
| - vdda_refclk-supply: |
| Usage: required for ipq/apq8064 |
| Value type: <phandle> |
| Definition: A phandle to the analog power supply for IC which generates |
| reference clock |
| - vddpe-3v3-supply: |
| Usage: optional |
| Value type: <phandle> |
| Definition: A phandle to the PCIe endpoint power supply |
| |
| - phys: |
| Usage: required for apq8084 and qcs404 |
| Value type: <phandle> |
| Definition: List of phandle(s) as listed in phy-names property |
| |
| - phy-names: |
| Usage: required for apq8084 and qcs404 |
| Value type: <stringlist> |
| Definition: Should contain "pciephy" |
| |
| - <name>-gpios: |
| Usage: optional |
| Value type: <prop-encoded-array> |
| Definition: List of phandle and GPIO specifier pairs. Should contain |
| - "perst-gpios" PCIe endpoint reset signal line |
| - "wake-gpios" PCIe endpoint wake signal line |
| |
| * Example for ipq/apq8064 |
| pcie@1b500000 { |
| compatible = "qcom,pcie-apq8064", "qcom,pcie-ipq8064", "snps,dw-pcie"; |
| reg = <0x1b500000 0x1000 |
| 0x1b502000 0x80 |
| 0x1b600000 0x100 |
| 0x0ff00000 0x100000>; |
| reg-names = "dbi", "elbi", "parf", "config"; |
| device_type = "pci"; |
| linux,pci-domain = <0>; |
| bus-range = <0x00 0xff>; |
| num-lanes = <1>; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| ranges = <0x81000000 0 0 0x0fe00000 0 0x00100000 /* I/O */ |
| 0x82000000 0 0 0x08000000 0 0x07e00000>; /* memory */ |
| interrupts = <GIC_SPI 238 IRQ_TYPE_NONE>; |
| interrupt-names = "msi"; |
| #interrupt-cells = <1>; |
| interrupt-map-mask = <0 0 0 0x7>; |
| interrupt-map = <0 0 0 1 &intc 0 36 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ |
| <0 0 0 2 &intc 0 37 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ |
| <0 0 0 3 &intc 0 38 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ |
| <0 0 0 4 &intc 0 39 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ |
| clocks = <&gcc PCIE_A_CLK>, |
| <&gcc PCIE_H_CLK>, |
| <&gcc PCIE_PHY_CLK>, |
| <&gcc PCIE_AUX_CLK>, |
| <&gcc PCIE_ALT_REF_CLK>; |
| clock-names = "core", "iface", "phy", "aux", "ref"; |
| resets = <&gcc PCIE_ACLK_RESET>, |
| <&gcc PCIE_HCLK_RESET>, |
| <&gcc PCIE_POR_RESET>, |
| <&gcc PCIE_PCI_RESET>, |
| <&gcc PCIE_PHY_RESET>, |
| <&gcc PCIE_EXT_RESET>; |
| reset-names = "axi", "ahb", "por", "pci", "phy", "ext"; |
| pinctrl-0 = <&pcie_pins_default>; |
| pinctrl-names = "default"; |
| }; |
| |
| * Example for apq8084 |
| pcie0@fc520000 { |
| compatible = "qcom,pcie-apq8084", "snps,dw-pcie"; |
| reg = <0xfc520000 0x2000>, |
| <0xff000000 0x1000>, |
| <0xff001000 0x1000>, |
| <0xff002000 0x2000>; |
| reg-names = "parf", "dbi", "elbi", "config"; |
| device_type = "pci"; |
| linux,pci-domain = <0>; |
| bus-range = <0x00 0xff>; |
| num-lanes = <1>; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| ranges = <0x81000000 0 0 0xff200000 0 0x00100000 /* I/O */ |
| 0x82000000 0 0x00300000 0xff300000 0 0x00d00000>; /* memory */ |
| interrupts = <GIC_SPI 243 IRQ_TYPE_NONE>; |
| interrupt-names = "msi"; |
| #interrupt-cells = <1>; |
| interrupt-map-mask = <0 0 0 0x7>; |
| interrupt-map = <0 0 0 1 &intc 0 244 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ |
| <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ |
| <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ |
| <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ |
| clocks = <&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_AUX_CLK>; |
| clock-names = "iface", "master_bus", "slave_bus", "aux"; |
| resets = <&gcc GCC_PCIE_0_BCR>; |
| reset-names = "core"; |
| power-domains = <&gcc PCIE0_GDSC>; |
| vdda-supply = <&pma8084_l3>; |
| phys = <&pciephy0>; |
| phy-names = "pciephy"; |
| perst-gpio = <&tlmm 70 GPIO_ACTIVE_LOW>; |
| pinctrl-0 = <&pcie0_pins_default>; |
| pinctrl-names = "default"; |
| }; |
