diff options
Diffstat (limited to '')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/mediatek-pcie.txt | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt index fe80dda9bf73..0fdcb1515796 100644 --- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt @@ -1,18 +1,13 @@ -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. +MediaTek Gen2 PCIe controller Required properties: -- compatible: Should contain "mediatek,mt7623-pcie". +- compatible: Should contain one of the following strings: + "mediatek,mt2701-pcie" + "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: @@ -20,12 +15,6 @@ Required properties: - 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. @@ -34,6 +23,16 @@ Required properties: - 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. + In addition, the device tree node must have sub-nodes describing each PCIe port interface, having the following mandatory properties: @@ -85,7 +84,8 @@ Examples: <&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>; + 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>; |