diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-08 15:47:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-08 15:47:43 -0700 |
commit | 0d519f2d1ed1f11e49abc88cfcf6cf13b83ba14c (patch) | |
tree | fe2bfed7c6e8448f9661216610ec81f1e0c28515 /Documentation/devicetree/bindings/pci | |
parent | 0756b7fbb696d2cb18785da9cab13ec164017f64 (diff) | |
parent | cf2d804110d3c20dc6865ade514c44179de34855 (diff) |
Merge tag 'pci-v4.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- add enhanced Downstream Port Containment support, which prints more
details about Root Port Programmed I/O errors (Dongdong Liu)
- add Layerscape ls1088a and ls2088a support (Hou Zhiqiang)
- add MediaTek MT2712 and MT7622 support (Ryder Lee)
- add MediaTek MT2712 and MT7622 MSI support (Honghui Zhang)
- add Qualcom IPQ8074 support (Varadarajan Narayanan)
- add R-Car r8a7743/5 device tree support (Biju Das)
- add Rockchip per-lane PHY support for better power management (Shawn
Lin)
- fix IRQ mapping for hot-added devices by replacing the
pci_fixup_irqs() boot-time design with a host bridge hook called at
probe-time (Lorenzo Pieralisi, Matthew Minter)
- fix race when enabling two devices that results in upstream bridge
not being enabled correctly (Srinath Mannam)
- fix pciehp power fault infinite loop (Keith Busch)
- fix SHPC bridge MSI hotplug events by enabling bus mastering
(Aleksandr Bezzubikov)
- fix a VFIO issue by correcting PCIe capability sizes (Alex
Williamson)
- fix an INTD issue on Xilinx and possibly other drivers by unifying
INTx IRQ domain support (Paul Burton)
- avoid IOMMU stalls by marking AMD Stoney GPU ATS as broken (Joerg
Roedel)
- allow APM X-Gene device assignment to guests by adding an ACS quirk
(Feng Kan)
- fix driver crashes by disabling Extended Tags on Broadcom HT2100
(Extended Tags support is required for PCIe Receivers but not
Requesters, and we now enable them by default when Requesters support
them) (Sinan Kaya)
- fix MSIs for devices that use phantom RIDs for DMA by assuming MSIs
use the real Requester ID (not a phantom RID) (Robin Murphy)
- prevent assignment of Intel VMD children to guests (which may be
supported eventually, but isn't yet) by not associating an IOMMU with
them (Jon Derrick)
- fix Intel VMD suspend/resume by releasing IRQs on suspend (Scott
Bauer)
- fix a Function-Level Reset issue with Intel 750 NVMe by waiting
longer (up to 60sec instead of 1sec) for device to become ready
(Sinan Kaya)
- fix a Function-Level Reset issue on iProc Stingray by working around
hardware defects in the CRS implementation (Oza Pawandeep)
- fix an issue with Intel NVMe P3700 after an iProc reset by adding a
delay during shutdown (Oza Pawandeep)
- fix a Microsoft Hyper-V lockdep issue by polling instead of blocking
in compose_msi_msg() (Stephen Hemminger)
- fix a wireless LAN driver timeout by clearing DesignWare MSI
interrupt status after it is handled, not before (Faiz Abbas)
- fix DesignWare ATU enable checking (Jisheng Zhang)
- reduce Layerscape dependencies on the bootloader by doing more
initialization in the driver (Hou Zhiqiang)
- improve Intel VMD performance allowing allocation of more IRQ vectors
than present CPUs (Keith Busch)
- improve endpoint framework support for initial DMA mask, different
BAR sizes, configurable page sizes, MSI, test driver, etc (Kishon
Vijay Abraham I, Stan Drozd)
- rework CRS support to add periodic messages while we poll during
enumeration and after Function-Level Reset and prepare for possible
other uses of CRS (Sinan Kaya)
- clean up Root Port AER handling by removing unnecessary code and
moving error handler methods to struct pcie_port_service_driver
(Christoph Hellwig)
- clean up error handling paths in various drivers (Bjorn Andersson,
Fabio Estevam, Gustavo A. R. Silva, Harunobu Kurokawa, Jeffy Chen,
Lorenzo Pieralisi, Sergei Shtylyov)
- clean up SR-IOV resource handling by disabling VF decoding before
updating the corresponding resource structs (Gavin Shan)
- clean up DesignWare-based drivers by unifying quirks to update Class
Code and Interrupt Pin and related handling of write-protected
registers (Hou Zhiqiang)
- clean up by adding empty generic pcibios_align_resource() and
pcibios_fixup_bus() and removing empty arch-specific implementations
(Palmer Dabbelt)
- request exclusive reset control for several drivers to allow cleanup
elsewhere (Philipp Zabel)
- constify various structures (Arvind Yadav, Bhumika Goyal)
- convert from full_name() to %pOF (Rob Herring)
- remove unused variables from iProc, HiSi, Altera, Keystone (Shawn
Lin)
* tag 'pci-v4.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (170 commits)
PCI: xgene: Clean up whitespace
PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offset
PCI: xgene: Fix platform_get_irq() error handling
PCI: xilinx-nwl: Fix platform_get_irq() error handling
PCI: rockchip: Fix platform_get_irq() error handling
PCI: altera: Fix platform_get_irq() error handling
PCI: spear13xx: Fix platform_get_irq() error handling
PCI: artpec6: Fix platform_get_irq() error handling
PCI: armada8k: Fix platform_get_irq() error handling
PCI: dra7xx: Fix platform_get_irq() error handling
PCI: exynos: Fix platform_get_irq() error handling
PCI: iproc: Clean up whitespace
PCI: iproc: Rename PCI_EXP_CAP to IPROC_PCI_EXP_CAP
PCI: iproc: Add 500ms delay during device shutdown
PCI: Fix typos and whitespace errors
PCI: Remove unused "res" variable from pci_resource_io()
PCI: Correct kernel-doc of pci_vpd_srdt_size(), pci_vpd_srdt_tag()
PCI/AER: Reformat AER register definitions
iommu/vt-d: Prevent VMD child devices from being remapping targets
x86/PCI: Use is_vmd() rather than relying on the domain number
...
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
25 files changed, 416 insertions, 214 deletions
diff --git a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt index 35a465362408..b9165b72473c 100644 --- a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt +++ b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt @@ -1,11 +1,11 @@ * Freescale 83xx and 512x PCI bridges -Freescale 83xx and 512x SOCs include the same pci bridge core. +Freescale 83xx and 512x SOCs include the same PCI bridge core. 83xx/512x specific notes: - reg: should contain two address length tuples - The first is for the internal pci bridge registers - The second is for the pci config space access registers + The first is for the internal PCI bridge registers + The second is for the PCI config space access registers Example (MPC8313ERDB) pci0: pci@e0008500 { diff --git a/Documentation/devicetree/bindings/pci/altera-pcie.txt b/Documentation/devicetree/bindings/pci/altera-pcie.txt index 2951a6a50704..495880193adc 100644 --- a/Documentation/devicetree/bindings/pci/altera-pcie.txt +++ b/Documentation/devicetree/bindings/pci/altera-pcie.txt @@ -7,21 +7,21 @@ Required properties: "Txs": TX slave port region "Cra": Control register access region - interrupt-parent: interrupt source phandle. -- interrupts: specifies the interrupt source of the parent interrupt controller. - The format of the interrupt specifier depends on the parent interrupt - controller. +- interrupts: specifies the interrupt source of the parent interrupt + controller. The format of the interrupt specifier depends + on the parent interrupt controller. - device_type: must be "pci" - #address-cells: set to <3> -- #size-cells: set to <2> +- #size-cells: set to <2> - #interrupt-cells: set to <1> -- ranges: describes the translation of addresses for root ports and standard - PCI regions. +- ranges: describes the translation of addresses for root ports and + standard PCI regions. - interrupt-map-mask and interrupt-map: standard PCI properties to define the mapping of the PCIe interface to interrupt numbers. Optional properties: -- msi-parent: Link to the hardware entity that serves as the MSI controller for this PCIe - controller. +- msi-parent: Link to the hardware entity that serves as the MSI controller + for this PCIe controller. - bus-range: PCI bus numbers covered Example @@ -45,5 +45,5 @@ Example <0 0 0 3 &pcie_0 3>, <0 0 0 4 &pcie_0 4>; ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000 - 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>; + 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>; }; diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt index 5ecaea1e6eee..4e4aee4439ea 100644 --- a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt +++ b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt @@ -6,7 +6,7 @@ and thus inherits all the common properties defined in designware-pcie.txt. Required properties: - compatible: "axis,artpec6-pcie", "snps,dw-pcie" - reg: base addresses and lengths of the PCIe controller (DBI), - the phy controller, and configuration address space. + the PHY controller, and configuration address space. - reg-names: Must include the following entries: - "dbi" - "phy" diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt index b2480dd38c11..1da7ade3183c 100644 --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt @@ -1,4 +1,4 @@ -* Synopsys Designware PCIe interface +* Synopsys DesignWare PCIe interface Required properties: - compatible: should contain "snps,dw-pcie" to identify the core. @@ -17,29 +17,27 @@ RC mode: properties to define the mapping of the PCIe interface to interrupt numbers. EP mode: -- num-ib-windows: number of inbound address translation - windows -- num-ob-windows: number of outbound address translation - windows +- num-ib-windows: number of inbound address translation windows +- num-ob-windows: number of outbound address translation windows Optional properties: - num-lanes: number of lanes to use (this property should be specified unless the link is brought already up in BIOS) -- reset-gpio: gpio pin number of power good signal +- reset-gpio: GPIO pin number of power good signal - clocks: Must contain an entry for each entry in clock-names. See ../clocks/clock-bindings.txt for details. - clock-names: Must include the following entries: - "pcie" - "pcie_bus" RC mode: -- num-viewport: number of view ports configured in - hardware. If a platform does not specify it, the driver assumes 2. -- bus-range: PCI bus numbers covered (it is recommended - for new devicetrees to specify this property, to keep backwards - compatibility a range of 0x00-0xff is assumed if not present) +- num-viewport: number of view ports configured in hardware. If a platform + does not specify it, the driver assumes 2. +- bus-range: PCI bus numbers covered (it is recommended for new devicetrees + to specify this property, to keep backwards compatibility a range of + 0x00-0xff is assumed if not present) + EP mode: -- max-functions: maximum number of functions that can be - configured +- max-functions: maximum number of functions that can be configured Example configuration: diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt index cf92d3ba5a26..7b1e48bf172b 100644 --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt @@ -1,6 +1,6 @@ * Freescale i.MX6 PCIe interface -This PCIe host controller is based on the Synopsis Designware PCIe IP +This PCIe host controller is based on the Synopsys DesignWare PCIe IP and thus inherits all the common properties defined in designware-pcie.txt. Required properties: diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt index 7a579c816951..bdb7ab39d2d7 100644 --- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt +++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt @@ -1,7 +1,7 @@ HiSilicon Hip05 and Hip06 PCIe host bridge DT description -HiSilicon PCIe host controller is based on Designware PCI core. -It shares common functions with PCIe Designware core driver and inherits +HiSilicon PCIe host controller is based on the Synopsys DesignWare PCI core. +It shares common functions with the PCIe DesignWare core driver and inherits common properties defined in Documentation/devicetree/bindings/pci/designware-pci.txt. diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt index 68ffa0fbcd73..6e217c63123d 100644 --- a/Documentation/devicetree/bindings/pci/kirin-pcie.txt +++ b/Documentation/devicetree/bindings/pci/kirin-pcie.txt @@ -1,8 +1,8 @@ HiSilicon Kirin SoCs PCIe host DT description -Kirin PCIe host controller is based on Designware PCI core. -It shares common functions with PCIe Designware core driver -and inherits common properties defined in +Kirin PCIe host controller is based on the Synopsys DesignWare PCI core. +It shares common functions with the PCIe DesignWare core driver and +inherits common properties defined in Documentation/devicetree/bindings/pci/designware-pci.txt. Additional properties are described here: @@ -16,7 +16,7 @@ Required properties "apb": apb Ctrl register defined by Kirin; "phy": apb PHY register defined by Kirin; "config": PCIe configuration space registers. -- reset-gpios: The gpio to generate PCIe perst assert and deassert signal. +- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal. Optional properties: diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt index ee1c72d5162e..c0484da0f20d 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -15,8 +15,10 @@ Required properties: - compatible: should contain the platform identifier such as: "fsl,ls1021a-pcie", "snps,dw-pcie" "fsl,ls2080a-pcie", "fsl,ls2085a-pcie", "snps,dw-pcie" + "fsl,ls2088a-pcie" + "fsl,ls1088a-pcie" "fsl,ls1046a-pcie" -- reg: base addresses and lengths of the PCIe controller +- 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: diff --git a/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt deleted file mode 100644 index fe80dda9bf73..000000000000 --- a/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt +++ /dev/null @@ -1,130 +0,0 @@ -MediaTek Gen2 PCIe controller which is available on MT7623 series SoCs - -PCIe subsys supports single root complex (RC) with 3 Root Ports. Each root -ports supports a Gen2 1-lane Link and has PIPE interface to PHY. - -Required properties: -- compatible: Should contain "mediatek,mt7623-pcie". -- device_type: Must be "pci" -- reg: Base addresses and lengths of the PCIe controller. -- #address-cells: Address representation for root ports (must be 3) -- #size-cells: Size representation for root ports (must be 2) -- #interrupt-cells: Size representation for interrupts (must be 1) -- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties - Please refer to the standard PCI bus binding document for a more detailed - explanation. -- clocks: Must contain an entry for each entry in clock-names. - See ../clocks/clock-bindings.txt for details. -- clock-names: Must include the following entries: - - free_ck :for reference clock of PCIe subsys - - sys_ck0 :for clock of Port0 - - sys_ck1 :for clock of Port1 - - sys_ck2 :for clock of Port2 -- resets: Must contain an entry for each entry in reset-names. - See ../reset/reset.txt for details. -- reset-names: Must include the following entries: - - pcie-rst0 :port0 reset - - pcie-rst1 :port1 reset - - pcie-rst2 :port2 reset -- phys: List of PHY specifiers (used by generic PHY framework). -- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the - number of PHYs as specified in *phys* property. -- power-domains: A phandle and power domain specifier pair to the power domain - which is responsible for collapsing and restoring power to the peripheral. -- bus-range: Range of bus numbers associated with this controller. -- ranges: Ranges for the PCI memory and I/O regions. - -In addition, the device tree node must have sub-nodes describing each -PCIe port interface, having the following mandatory properties: - -Required properties: -- device_type: Must be "pci" -- reg: Only the first four bytes are used to refer to the correct bus number - and device number. -- #address-cells: Must be 3 -- #size-cells: Must be 2 -- #interrupt-cells: Must be 1 -- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties - Please refer to the standard PCI bus binding document for a more detailed - explanation. -- ranges: Sub-ranges distributed from the PCIe controller node. An empty - property is sufficient. -- num-lanes: Number of lanes to use for this port. - -Examples: - - hifsys: syscon@1a000000 { - compatible = "mediatek,mt7623-hifsys", - "mediatek,mt2701-hifsys", - "syscon"; - reg = <0 0x1a000000 0 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - }; - - pcie: pcie-controller@1a140000 { - compatible = "mediatek,mt7623-pcie"; - device_type = "pci"; - reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */ - <0 0x1a142000 0 0x1000>, /* Port0 registers */ - <0 0x1a143000 0 0x1000>, /* Port1 registers */ - <0 0x1a144000 0 0x1000>; /* Port2 registers */ - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - interrupt-map-mask = <0xf800 0 0 0>; - interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>, - <0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>, - <0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; - clocks = <&topckgen CLK_TOP_ETHIF_SEL>, - <&hifsys CLK_HIFSYS_PCIE0>, - <&hifsys CLK_HIFSYS_PCIE1>, - <&hifsys CLK_HIFSYS_PCIE2>; - clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2"; - resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>, - <&hifsys MT2701_HIFSYS_PCIE1_RST>, - <&hifsys MT2701_HIFSYS_PCIE2_RST>; - reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2"; - phys = <&pcie0_phy>, <&pcie1_phy>, <&pcie2_phy>; - phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2"; - power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>; - bus-range = <0x00 0xff>; - ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000 /* I/O space */ - 0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>; /* memory space */ - - pcie@0,0 { - device_type = "pci"; - reg = <0x0000 0 0 0 0>; - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>; - ranges; - num-lanes = <1>; - }; - - pcie@1,0 { - device_type = "pci"; - reg = <0x0800 0 0 0 0>; - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>; - ranges; - num-lanes = <1>; - }; - - pcie@2,0 { - device_type = "pci"; - reg = <0x1000 0 0 0 0>; - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; - ranges; - num-lanes = <1>; - }; - }; diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt new file mode 100644 index 000000000000..3a6ce55dd310 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt @@ -0,0 +1,284 @@ +MediaTek Gen2 PCIe controller + +Required properties: +- compatible: Should contain one of the following strings: + "mediatek,mt2701-pcie" + "mediatek,mt2712-pcie" + "mediatek,mt7622-pcie" + "mediatek,mt7623-pcie" +- device_type: Must be "pci" +- reg: Base addresses and lengths of the PCIe subsys and root ports. +- reg-names: Names of the above areas to use during resource lookup. +- #address-cells: Address representation for root ports (must be 3) +- #size-cells: Size representation for root ports (must be 2) +- clocks: Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names: + Mandatory entries: + - sys_ckN :transaction layer and data link layer clock + Required entries for MT2701/MT7623: + - free_ck :for reference clock of PCIe subsys + Required entries for MT2712/MT7622: + - ahb_ckN :AHB slave interface operating clock for CSR access and RC + initiated MMIO access + Required entries for MT7622: + - axi_ckN :application layer MMIO channel operating clock + - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when + pcie_mac_ck/pcie_pipe_ck is turned off + - obff_ckN :OBFF functional block operating clock + - pipe_ckN :LTSSM and PHY/MAC layer operating clock + where N starting from 0 to one less than the number of root ports. +- phys: List of PHY specifiers (used by generic PHY framework). +- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the + number of PHYs as specified in *phys* property. +- power-domains: A phandle and power domain specifier pair to the power domain + which is responsible for collapsing and restoring power to the peripheral. +- bus-range: Range of bus numbers associated with this controller. +- ranges: Ranges for the PCI memory and I/O regions. + +Required properties for MT7623/MT2701: +- #interrupt-cells: Size representation for interrupts (must be 1) +- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties + Please refer to the standard PCI bus binding document for a more detailed + explanation. +- resets: Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the + number of root ports. + +Required properties for MT2712/MT7622: +-interrupts: A list of interrupt outputs of the controller, must have one + entry for each PCIe port + +In addition, the device tree node must have sub-nodes describing each +PCIe port interface, having the following mandatory properties: + +Required properties: +- device_type: Must be "pci" +- reg: Only the first four bytes are used to refer to the correct bus number + and device number. +- #address-cells: Must be 3 +- #size-cells: Must be 2 +- #interrupt-cells: Must be 1 +- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties + Please refer to the standard PCI bus binding document for a more detailed + explanation. +- ranges: Sub-ranges distributed from the PCIe controller node. An empty + property is sufficient. +- num-lanes: Number of lanes to use for this port. + +Examples for MT7623: + + hifsys: syscon@1a000000 { + compatible = "mediatek,mt7623-hifsys", + "mediatek,mt2701-hifsys", + "syscon"; + reg = <0 0x1a000000 0 0x1000>; + #clock-cells = <1>; + #reset-cells = <1>; + }; + + pcie: pcie-controller@1a140000 { + compatible = "mediatek,mt7623-pcie"; + device_type = "pci"; + reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */ + <0 0x1a142000 0 0x1000>, /* Port0 registers */ + <0 0x1a143000 0 0x1000>, /* Port1 registers */ + <0 0x1a144000 0 0x1000>; /* Port2 registers */ + reg-names = "subsys", "port0", "port1", "port2"; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + interrupt-map-mask = <0xf800 0 0 0>; + interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>, + <0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>, + <0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen CLK_TOP_ETHIF_SEL>, + <&hifsys CLK_HIFSYS_PCIE0>, + <&hifsys CLK_HIFSYS_PCIE1>, + <&hifsys CLK_HIFSYS_PCIE2>; + clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2"; + resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>, + <&hifsys MT2701_HIFSYS_PCIE1_RST>, + <&hifsys MT2701_HIFSYS_PCIE2_RST>; + reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2"; + phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>, + <&pcie2_phy PHY_TYPE_PCIE>; + phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2"; + power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>; + bus-range = <0x00 0xff>; + ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000 /* I/O space */ + 0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>; /* memory space */ + + pcie@0,0 { + device_type = "pci"; + reg = <0x0000 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>; + ranges; + num-lanes = <1>; + }; + + pcie@1,0 { + device_type = "pci"; + reg = <0x0800 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>; + ranges; + num-lanes = <1>; + }; + + pcie@2,0 { + device_type = "pci"; + reg = <0x1000 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; + ranges; + num-lanes = <1>; + }; + }; + +Examples for MT2712: + pcie: pcie@11700000 { + compatible = "mediatek,mt2712-pcie"; + device_type = "pci"; + reg = <0 0x11700000 0 0x1000>, + <0 0x112ff000 0 0x1000>; + reg-names = "port0", "port1"; + #address-cells = <3>; + #size-cells = <2>; + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>, + <&topckgen CLK_TOP_PE2_MAC_P1_SEL>, + <&pericfg CLK_PERI_PCIE0>, + <&pericfg CLK_PERI_PCIE1>; + clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1"; + phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>; + phy-names = "pcie-phy0", "pcie-phy1"; + bus-range = <0x00 0xff>; + ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>; + + pcie0: pcie@0,0 { + device_type = "pci"; + reg = <0x0000 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + ranges; + num-lanes = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc0 0>, + <0 0 0 2 &pcie_intc0 1>, + <0 0 0 3 &pcie_intc0 2>, + <0 0 0 4 &pcie_intc0 3>; + pcie_intc0: interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; + }; + + pcie1: pcie@1,0 { + device_type = "pci"; + reg = <0x0800 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + ranges; + num-lanes = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc1 0>, + <0 0 0 2 &pcie_intc1 1>, + <0 0 0 3 &pcie_intc1 2>, + <0 0 0 4 &pcie_intc1 3>; + pcie_intc1: interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; + }; + }; + +Examples for MT7622: + pcie: pcie@1a140000 { + compatible = "mediatek,mt7622-pcie"; + device_type = "pci"; + reg = <0 0x1a140000 0 0x1000>, + <0 0x1a143000 0 0x1000>, + <0 0x1a145000 0 0x1000>; + reg-names = "subsys", "port0", "port1"; + #address-cells = <3>; + #size-cells = <2>; + interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>; + clocks = <&pciesys CLK_PCIE_P0_MAC_EN>, + <&pciesys CLK_PCIE_P1_MAC_EN>, + <&pciesys CLK_PCIE_P0_AHB_EN>, + <&pciesys CLK_PCIE_P1_AHB_EN>, + <&pciesys CLK_PCIE_P0_AUX_EN>, + <&pciesys CLK_PCIE_P1_AUX_EN>, + <&pciesys CLK_PCIE_P0_AXI_EN>, + <&pciesys CLK_PCIE_P1_AXI_EN>, + <&pciesys CLK_PCIE_P0_OBFF_EN>, + <&pciesys CLK_PCIE_P1_OBFF_EN>, + <&pciesys CLK_PCIE_P0_PIPE_EN>, + <&pciesys CLK_PCIE_P1_PIPE_EN>; + clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1", + "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1", + "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1"; + phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>; + phy-names = "pcie-phy0", "pcie-phy1"; + power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>; + bus-range = <0x00 0xff>; + ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>; + + pcie0: pcie@0,0 { + device_type = "pci"; + reg = <0x0000 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + ranges; + num-lanes = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc0 0>, + <0 0 0 2 &pcie_intc0 1>, + <0 0 0 3 &pcie_intc0 2>, + <0 0 0 4 &pcie_intc0 3>; + pcie_intc0: interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; + }; + + pcie1: pcie@1,0 { + device_type = "pci"; + reg = <0x0800 0 0 0 0>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + ranges; + num-lanes = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc1 0>, + <0 0 0 2 &pcie_intc1 1>, + <0 0 0 3 &pcie_intc1 2>, + <0 0 0 4 &pcie_intc1 3>; + pcie_intc1: interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt index 9c7fce69570b..127ae1f53e5a 100644 --- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt +++ b/ |