diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/PCI/pci.rst | 4 | ||||
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 9 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/pci/layerscape-pci.txt | 65 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/pci/qcom,pcie.txt | 397 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 714 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 12 |
6 files changed, 764 insertions, 437 deletions
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst index 67a850b55617..cced568d78e9 100644 --- a/Documentation/PCI/pci.rst +++ b/Documentation/PCI/pci.rst @@ -273,12 +273,12 @@ Set the DMA mask size While all drivers should explicitly indicate the DMA capability (e.g. 32 or 64 bit) of the PCI bus master, devices with more than 32-bit bus master capability for streaming data need the driver -to "register" this capability by calling pci_set_dma_mask() with +to "register" this capability by calling dma_set_mask() with appropriate parameters. In general this allows more efficient DMA on systems where System RAM exists above 4G _physical_ address. Drivers for all PCI-X and PCIe compliant devices must call -set_dma_mask() as they are 64-bit DMA devices. +dma_set_mask() as they are 64-bit DMA devices. Similarly, drivers must also "register" this capability if the device can directly address "coherent memory" in System RAM above 4G physical diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 32073f873662..710b52d87bdd 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4099,6 +4099,15 @@ please report a bug. nocrs [X86] Ignore PCI host bridge windows from ACPI. If you need to use this, please report a bug. + use_e820 [X86] Use E820 reservations to exclude parts of + PCI host bridge windows. This is a workaround + for BIOS defects in host bridge _CRS methods. + If you need to use this, please report a bug to + <linux-pci@vger.kernel.org>. + no_e820 [X86] Ignore E820 reservations for PCI host + bridge windows. This is the default on modern + hardware. If you need to use this, please report + a bug to <linux-pci@vger.kernel.org>. routeirq Do IRQ routing for all PCI devices. This is normally done in pci_enable_device(), so this option is a temporary workaround diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt index f36efa73a470..ee8a4791a78b 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -23,6 +23,7 @@ Required properties: "fsl,ls1012a-pcie" "fsl,ls1028a-pcie" EP mode: + "fsl,ls1028a-pcie-ep", "fsl,ls-pcie-ep" "fsl,ls1046a-pcie-ep", "fsl,ls-pcie-ep" "fsl,ls1088a-pcie-ep", "fsl,ls-pcie-ep" "fsl,ls2088a-pcie-ep", "fsl,ls-pcie-ep" @@ -30,39 +31,49 @@ Required properties: - reg: base addresses and lengths of the PCIe controller register blocks. - interrupts: A list of interrupt outputs of the controller. Must contain an entry for each entry in the interrupt-names property. -- interrupt-names: Must include the following entries: - "intr": The interrupt that is asserted for controller interrupts +- interrupt-names: It could include the following entries: + "aer": Used for interrupt line which reports AER events when + non MSI/MSI-X/INTx mode is used + "pme": Used for interrupt line which reports PME events when + non MSI/MSI-X/INTx mode is used + "intr": Used for SoCs(like ls2080a, lx2160a, ls2080a, ls2088a, ls1088a) + which has a single interrupt line for miscellaneous controller + events(could include AER and PME events). - fsl,pcie-scfg: Must include two entries. The first entry must be a link to the SCFG device node - The second entry must be '0' or '1' based on physical PCIe controller index. + The second entry is the physical PCIe controller index starting from '0'. This is used to get SCFG PEXN registers - dma-coherent: Indicates that the hardware IP block can ensure the coherency of the data transferred from/to the IP block. This can avoid the software cache flush/invalid actions, and improve the performance significantly. +Optional properties: +- big-endian: If the PEX_LUT and PF register block is in big-endian, specify + this property. + Example: - pcie@3400000 { - compatible = "fsl,ls1021a-pcie"; - reg = <0x00 0x03400000 0x0 0x00010000 /* controller registers */ - 0x40 0x00000000 0x0 0x00002000>; /* configuration space */ - reg-names = "regs", "config"; - interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */ - interrupt-names = "intr"; - fsl,pcie-scfg = <&scfg 0>; - #address-cells = <3>; - #size-cells = <2>; - device_type = "pci"; - dma-coherent; - num-lanes = <4>; - bus-range = <0x0 0xff>; - ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */ - 0xc2000000 0x0 0x20000000 0x40 0x20000000 0x0 0x20000000 /* prefetchable memory */ - 0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */ - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 7>; - interrupt-map = <0000 0 0 1 &gic GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>, - <0000 0 0 2 &gic GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>, - <0000 0 0 3 &gic GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>, - <0000 0 0 4 &gic GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>; - }; + pcie@3400000 { + compatible = "fsl,ls1088a-pcie"; + reg = <0x00 0x03400000 0x0 0x00100000>, /* controller registers */ + <0x20 0x00000000 0x0 0x00002000>; /* configuration space */ + reg-names = "regs", "config"; + interrupts = <0 108 IRQ_TYPE_LEVEL_HIGH>; /* aer interrupt */ + interrupt-names = "aer"; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + dma-coherent; + num-viewport = <256>; + bus-range = <0x0 0xff>; + ranges = <0x81000000 0x0 0x00000000 0x20 0x00010000 0x0 0x00010000 /* downstream I/O */ + 0x82000000 0x0 0x40000000 0x20 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */ + msi-parent = <&its>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0000 0 0 1 &gic 0 0 0 109 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 2 &gic 0 0 0 110 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 3 &gic 0 0 0 111 IRQ_TYPE_LEVEL_HIGH>, + <0000 0 0 4 &gic 0 0 0 112 IRQ_TYPE_LEVEL_HIGH>; + iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */ + }; diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt deleted file mode 100644 index 0adb56d5645e..000000000000 --- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt +++ /dev/null @@ -1,397 +0,0 @@ -* 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-sc8180x" for sc8180x - - "qcom,pcie-sdm845" for sdm845 - - "qcom,pcie-sm8250" for sm8250 - - "qcom,pcie-sm8450-pcie0" for PCIe0 on sm8450 - - "qcom,pcie-sm8450-pcie1" for PCIe1 on sm8450 - - "qcom,pcie-ipq6018" for ipq6018 - -- 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 snps,dw-pcie.yaml - -- #address-cells: - Usage: required - Value type: <u32> - Definition: Should be 3. As specified in snps,dw-pcie.yaml - -- #size-cells: - Usage: required - Value type: <u32> - Definition: Should be 2. As specified in snps,dw-pcie.yaml - -- ranges: - Usage: required - Value type: <prop-encoded-array> - Definition: As specified in snps,dw-pcie.yaml - -- 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 snps,dw-pcie.yaml - -- interrupt-map-mask: - Usage: required - Value type: <prop-encoded-array> - Definition: As specified in snps,dw-pcie.yaml - -- interrupt-map: - Usage: required - Value type: <prop-encoded-array> - Definition: As specified in snps,dw-pcie.yaml - -- 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 ipq6018 - 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 - - "axi_bridge" AXI bridge clock - - "rchng" - -- 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 - 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 - -- clock-names: - Usage: required for sc8180x 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 - - "ddrss_sf_tbu" PCIe SF TBU clock - - "pipe" PIPE clock - -- clock-names: - Usage: required for sm8450-pcie0 and sm8450-pcie1 - 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 - - "ddrss_sf_tbu" PCIe SF TBU clock - - "pipe" PIPE clock - - "pipe_mux" PIPE MUX - - "phy_pipe" PIPE output clock - - "ref" REFERENCE clock - - "aggre0" Aggre NoC PCIe0 AXI clock, only for sm8450-pcie0 - - "aggre1" Aggre NoC PCIe1 AXI 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 ipq6018 - 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 - - "axi_s_sticky" AXI Slave 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 sc8180x, sdm845, sm8250 and sm8450 - 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"; - }; diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml new file mode 100644 index 000000000000..0b69b12b849e --- /dev/null +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml @@ -0,0 +1,714 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/qcom,pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm PCI express root complex + +maintainers: + - Bjorn Andersson <bjorn.andersson@linaro.org> + - Stanimir Varbanov <svarbanov@mm-sol.com> + +description: | + Qualcomm PCIe root complex controller is bansed on the Synopsys DesignWare + PCIe IP. + +properties: + compatible: + enum: + - qcom,pcie-ipq8064 + - qcom,pcie-ipq8064-v2 + - qcom,pcie-apq8064 + - qcom,pcie-apq8084 + - qcom,pcie-msm8996 + - qcom,pcie-ipq4019 + - qcom,pcie-ipq8074 + - qcom,pcie-qcs404 + - qcom,pcie-sc7280 + - qcom,pcie-sc8180x + - qcom,pcie-sdm845 + - qcom,pcie-sm8150 + - qcom,pcie-sm8250 + - qcom,pcie-sm8450-pcie0 + - qcom,pcie-sm8450-pcie1 + - qcom,pcie-ipq6018 + + reg: + minItems: 4 + maxItems: 5 + + reg-names: + minItems: 4 + maxItems: 5 + + interrupts: + maxItems: 1 + + interrupt-names: + items: + - const: msi + + # Common definitions for clocks, clock-names and reset. + # Platform constraints are described later. + clocks: + minItems: 3 + maxItems: 12 + + clock-names: + minItems: 3 + maxItems: 12 + + resets: + minItems: 1 + maxItems: 12 + + resets-names: + minItems: 1 + maxItems: 12 + + vdda-supply: + description: A phandle to the core analog power supply + + vdda_phy-supply: + description: A phandle to the core analog power supply for PHY + + vdda_refclk-supply: + description: A phandle to the core analog power supply for IC which generates reference clock + + vddpe-3v3-supply: + description: A phandle to the PCIe endpoint power supply + + phys: + maxItems: 1 + + phy-names: + items: + - const: pciephy + + power-domains: + maxItems: 1 + + perst-gpios: + description: GPIO controlled connection to PERST# signal + maxItems: 1 + + wake-gpios: + description: GPIO controlled connection to WAKE# signal + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - interrupts + - interrupt-names + - "#interrupt-cells" + - interrupt-map-mask + - interrupt-map + - clocks + - clock-names + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-apq8064 + - qcom,pcie-ipq4019 + - qcom,pcie-ipq8064 + - qcom,pcie-ipq8064v2 + - qcom,pcie-ipq8074 + - qcom,pcie-qcs404 + then: + properties: + reg: + minItems: 4 + maxItems: 4 + reg-names: + items: + - const: dbi # DesignWare PCIe registers + - const: elbi # External local bus interface registers + - const: parf # Qualcomm specific registers + - const: config # PCIe configuration space + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-ipq6018 + then: + properties: + reg: + minItems: 5 + maxItems: 5 + reg-names: + items: + - const: dbi # DesignWare PCIe registers + - const: elbi # External local bus interface registers + - const: atu # ATU address space + - const: parf # Qualcomm specific registers + - const: config # PCIe configuration space + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-apq8084 + - qcom,pcie-msm8996 + - qcom,pcie-sdm845 + then: + properties: + reg: + minItems: 4 + maxItems: 4 + reg-names: + items: + - const: parf # Qualcomm specific registers + - const: dbi # DesignWare PCIe registers + - const: elbi # External local bus interface registers + - const: config # PCIe configuration space + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sc7280 + - qcom,pcie-sc8180x + - qcom,pcie-sm8250 + - qcom,pcie-sm8450-pcie0 + - qcom,pcie-sm8450-pcie1 + then: + properties: + reg: + minItems: 5 + maxItems: 5 + reg-names: + items: + - const: parf # Qualcomm specific registers + - const: dbi # DesignWare PCIe registers + - const: elbi # External local bus interface registers + - const: atu # ATU address space + - const: config # PCIe configuration space + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-apq8064 + - qcom,pcie-ipq8064 + - qcom,pcie-ipq8064v2 + then: + properties: + clocks: + minItems: 3 + maxItems: 5 + clock-names: + minItems: 3 + items: + - const: core # Clocks the pcie hw block + - const: iface # Configuration AHB clock + - const: phy # Clocks the pcie PHY block + - const: aux # Clocks the pcie AUX block, not on apq8064 + - const: ref # Clocks the pcie ref block, not on apq8064 + resets: + minItems: 5 + maxItems: 6 + reset-names: + minItems: 5 + items: + - const: axi # AXI reset + - const: ahb # AHB reset + - const: por # POR reset + - const: pci # PCI reset + - const: phy # PHY reset + - const: ext # EXT reset, not on apq8064 + required: + - vdda-supply + - vdda_phy-supply + - vdda_refclk-supply + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-apq8084 + then: + properties: + clocks: + minItems: 4 + maxItems: 4 + clock-names: + items: + - const: iface # Configuration AHB clock + - const: master_bus # Master AXI clock + - const: slave_bus # Slave AXI clock + - const: aux # Auxiliary (AUX) clock + resets: + maxItems: 1 + reset-names: + items: + - const: core # Core reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-ipq4019 + then: + properties: + clocks: + minItems: 3 + maxItems: 3 + clock-names: + items: + - const: aux # Auxiliary (AUX) clock + - const: master_bus # Master AXI clock + - const: slave_bus # Slave AXI clock + resets: + minItems: 12 + maxItems: 12 + reset-names: + items: + - const: axi_m # AXI master reset + - const: axi_s # AXI slave reset + - const: pipe # PIPE reset + - const: axi_m_vmid # VMID reset + - const: axi_s_xpu # XPU reset + - const: parf # PARF reset + - const: phy # PHY reset + - const: axi_m_sticky # AXI sticky reset + - const: pipe_sticky # PIPE sticky reset + - const: pwr # PWR reset + - const: ahb # AHB reset + - const: phy_ahb # PHY AHB reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-msm8996 + then: + oneOf: + - properties: + clock-names: + items: + - const: pipe # Pipe Clock driving internal logic + - const: aux # Auxiliary (AUX) clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - properties: + clock-names: + items: + - const: pipe # Pipe Clock driving internal logic + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: cfg # Configuration clock + - const: aux # Auxiliary (AUX) clock + properties: + clocks: + minItems: 5 + maxItems: 5 + resets: false + reset-names: false + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-ipq8074 + then: + properties: + clocks: + minItems: 5 + maxItems: 5 + clock-names: + items: + - const: iface # PCIe to SysNOC BIU clock + - const: axi_m # AXI Master clock + - const: axi_s # AXI Slave clock + - const: ahb # AHB clock + - const: aux # Auxiliary clock + resets: + minItems: 7 + maxItems: 7 + reset-names: + items: + - const: pipe # PIPE reset + - const: sleep # Sleep reset + - const: sticky # Core Sticky reset + - const: axi_m # AXI Master reset + - const: axi_s # AXI Slave reset + - const: ahb # AHB Reset + - const: axi_m_sticky # AXI Master Sticky reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-ipq6018 + then: + properties: + clocks: + minItems: 5 + maxItems: 5 + clock-names: + items: + - const: iface # PCIe to SysNOC BIU clock + - const: axi_m # AXI Master clock + - const: axi_s # AXI Slave clock + - const: axi_bridge # AXI bridge clock + - const: rchng + resets: + minItems: 8 + maxItems: 8 + reset-names: + items: + - const: pipe # PIPE reset + - const: sleep # Sleep reset + - const: sticky # Core Sticky reset + - const: axi_m # AXI Master reset + - const: axi_s # AXI Slave reset + - const: ahb # AHB Reset + - const: axi_m_sticky # AXI Master Sticky reset + - const: axi_s_sticky # AXI Slave Sticky reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-qcs404 + then: + properties: + clocks: + minItems: 4 + maxItems: 4 + clock-names: + items: + - const: iface # AHB clock + - const: aux # Auxiliary clock + - const: master_bus # AXI Master clock + - const: slave_bus # AXI Slave clock + resets: + minItems: 6 + maxItems: 6 + reset-names: + items: + - const: axi_m # AXI Master reset + - const: axi_s # AXI Slave reset + - const: axi_m_sticky # AXI Master Sticky reset + - const: pipe_sticky # PIPE sticky reset + - const: pwr # PWR reset + - const: ahb # AHB reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sc7280 + then: + properties: + clocks: + minItems: 11 + maxItems: 11 + clock-names: + items: + - const: pipe # PIPE clock + - const: pipe_mux # PIPE MUX + - const: phy_pipe # PIPE output clock + - const: ref # REFERENCE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: tbu # PCIe TBU clock + - const: ddrss_sf_tbu # PCIe SF TBU clock + resets: + maxItems: 1 + reset-names: + items: + - const: pci # PCIe core reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sdm845 + then: + oneOf: + # Unfortunately the "optional" ref clock is used in the middle of the list + - properties: + clocks: + minItems: 8 + maxItems: 8 + clock-names: + items: + - const: pipe # PIPE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: ref # REFERENCE clock + - const: tbu # PCIe TBU clock + - properties: + clocks: + minItems: 7 + maxItems: 7 + clock-names: + items: + - const: pipe # PIPE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: tbu # PCIe TBU clock + properties: + resets: + maxItems: 1 + reset-names: + items: + - const: pci # PCIe core reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sc8180x + - qcom,pcie-sm8150 + - qcom,pcie-sm8250 + then: + oneOf: + # Unfortunately the "optional" ref clock is used in the middle of the list + - properties: + clocks: + minItems: 9 + maxItems: 9 + clock-names: + items: + - const: pipe # PIPE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: ref # REFERENCE clock + - const: tbu # PCIe TBU clock + - const: ddrss_sf_tbu # PCIe SF TBU clock + - properties: + clocks: + minItems: 8 + maxItems: 8 + clock-names: + items: + - const: pipe # PIPE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: tbu # PCIe TBU clock + - const: ddrss_sf_tbu # PCIe SF TBU clock + properties: + resets: + maxItems: 1 + reset-names: + items: + - const: pci # PCIe core reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sm8450-pcie0 + then: + properties: + clocks: + minItems: 12 + maxItems: 12 + clock-names: + items: + - const: pipe # PIPE clock + - const: pipe_mux # PIPE MUX + - const: phy_pipe # PIPE output clock + - const: ref # REFERENCE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: ddrss_sf_tbu # PCIe SF TBU clock + - const: aggre0 # Aggre NoC PCIe0 AXI clock + - const: aggre1 # Aggre NoC PCIe1 AXI clock + resets: + maxItems: 1 + reset-names: + items: + - const: pci # PCIe core reset + + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sm8450-pcie1 + then: + properties: + clocks: + minItems: 11 + maxItems: 11 + clock-names: + items: + - const: pipe # PIPE clock + - const: pipe_mux # PIPE MUX + - const: phy_pipe # PIPE output clock + - const: ref # REFERENCE clock + - const: aux # Auxiliary clock + - const: cfg # Configuration clock + - const: bus_master # Master AXI clock + - const: bus_slave # Slave AXI clock + - const: slave_q2a # Slave Q2A clock + - const: ddrss_sf_tbu # PCIe SF TBU clock + - const: aggre1 # Aggre NoC PCIe1 AXI clock + resets: + maxItems: 1 + reset-names: + items: + - const: pci # PCIe core reset + + - if: + not: + properties: + compatible: + contains: + enum: + - qcom,pcie-apq8064 + - qcom,pcie-ipq4019 + - qcom,pcie-ipq8064 + - qcom,pcie-ipq8064v2 + - qcom,pcie-ipq8074 + - qcom,pcie-qcs404 + then: + required: + - power-domains + + - if: + not: + properties: + compatibles: + contains: + enum: + - qcom,pcie-msm8996 + then: + required: + - resets + - reset-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + pcie@1b500000 { + compatible = "qcom,pcie-ipq8064"; + 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>, + <0x82000000 0 0 0x08000000 0 0x07e00000>; + interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>; + 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>, + <0 0 0 2 &intc 0 37 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc 0 38 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc 0 39 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&gcc 41>, + <&gcc 43>, + <&gcc 44>, + <&gcc 42>, + <&gcc 248>; + clock-names = "core", "iface", "phy", "aux", "ref"; + resets = <&gcc 27>, + <&gcc 26>, + <&gcc 25>, + <&gcc 24>, + <&gcc 23>, + <&gcc 22>; + reset-names = "axi", "ahb", "por", "pci", "phy", "ext"; + pinctrl-0 = <&pcie_pins_default>; + pinctrl-names = "default"; + vdda-supply = <&pm8921_s3>; + vdda_phy-supply = <&pm8921_lvs6>; + vdda_refclk-supply = <&ext_3p3v>; + }; + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/gpio/gpio.h> + pcie@fc520000 { + compatible = "qcom,pcie-apq8084"; + 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>, + <0x82000000 0 0x00300000 0xff300000 0 0x00d00000>; + interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>; + 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>, + <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&gcc 324>, + <&gcc 325>, + <&gcc 327>, + <&gcc 323>; + clock-names = "iface", "master_bus", "slave_bus", "aux"; + resets = <&gcc 81>; + reset-names = "core"; + power-domains = <&gcc 1>; + vdda-supply = <&pma8084_l3>; + phys = <&pciephy0>; + phy-names = "pciephy"; + perst-gpios = <&tlmm 70 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&pcie0_pins_default>; + pinctrl-names = "default"; + }; +... diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml index 142bbe577763..bc0a9d1db750 100644 --- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml @@ -19,20 +19,10 @@ description: |+ allOf: - $ref: /schemas/pci/pci-bus.yaml# -# We need a select here so we don't match all nodes with 'snps,dw-pcie' -select: - properties: - compatible: - contains: - const: rockchip,rk3568-pcie - required: - - compatible - properties: compatible: items: - const: rockchip,rk3568-pcie - - const: snps,dw-pcie reg: items: @@ -110,7 +100,7 @@ examples: #size-cells = <2>; pcie3x2: pcie@fe280000 { - compatible = "rockchip,rk3568-pcie", "snps,dw-pcie"; + compatible = "rockchip,rk3568-pcie"; reg = <0x3 0xc0800000 0x0 0x390000>, <0x0 0xfe280000 0x0 0x10000>, <0x3 0x80000000 0x0 0x100000>; |