--- /dev/null
+From 5b51a1e93ccaaec4cd90b73ee20cea219af2f151 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Wed, 6 Jan 2016 21:55:10 +0100
+Subject: [PATCH 24/53] dt-bindings: add MediaTek PCIe binding documentation
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ .../devicetree/bindings/pci/mediatek-pcie.txt | 140 ++++++++++++++++++++
+ 1 file changed, 140 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+
+diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+new file mode 100644
+index 0000000..8fea3ed
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+@@ -0,0 +1,140 @@
++Mediatek PCIe controller
++
++Required properties:
++- compatible: Should be one of:
++ - "mediatek,mt2701-pcie"
++ - "mediatek,mt7623-pcie"
++- device_type: Must be "pci"
++- reg: A list of physical base address and length for each set of controller
++ registers. A list of register ranges to use. Must contain an
++ entry for each entry in the reg-names property.
++- reg-names: Must include the following entries:
++ "pcie": PCIe registers
++ "pcie phy0": PCIe PHY0 registers
++ "pcie phy1": PCIe PHY0 registers
++ "pcie phy2": PCIe PHY0 registers
++- 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:
++ "pcie0": The interrupt that is asserted for port0
++ "pcie1": The interrupt that is asserted for port1
++ "pcie2": The interrupt that is asserted for port2
++- bus-range: Range of bus numbers associated with this controller
++- #address-cells: Address representation for root ports (must be 3)
++- #size-cells: Size representation for root ports (must be 2)
++- ranges: Describes the translation of addresses for root ports and standard
++ PCI regions. The entries must be 6 cells each.
++ Please refer to the standard PCI bus binding document for a more detailed
++ explanation.
++- #interrupt-cells: Size representation for interrupts (must be 1)
++- 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:
++ - pcie0
++ - pcie1
++ - pcie2
++- resets: Must contain an entry for each entry in reset-names.
++ See ../reset/reset.txt for details.
++- reset-names: Must include the following entries:
++ - pcie0
++ - pcie1
++ - pcie2
++- mediatek,hifsys: Must contain a phandle to the HIFSYS syscon range.
++Root ports are defined as subnodes of the PCIe controller node.
++
++Required properties:
++- device_type: Must be "pci"
++- assigned-addresses: Address and size of the port configuration registers
++- reg: PCI bus address of the root port
++- #address-cells: Must be 3
++- #size-cells: Must be 2
++- ranges: Sub-ranges distributed from the PCIe controller node. An empty
++ property is sufficient.
++
++Example:
++
++SoC DTSI:
++
++ hifsys: clock-controller@1a000000 {
++ compatible = "mediatek,mt7623-hifsys",
++ "mediatek,mt2701-hifsys",
++ "syscon";
++ reg = <0 0x1a000000 0 0x1000>;
++ #clock-cells = <1>;
++ #reset-cells = <1>;
++ };
++
++ pcie-controller@1a140000 {
++ compatible = "mediatek,mt7623-pcie";
++ device_type = "pci";
++ reg = <0 0x1a140000 0 0x8000>, /* PCI-Express registers */
++ <0 0x1a149000 0 0x1000>, /* PCI-Express PHY0 */
++ <0 0x1a14a000 0 0x1000>, /* PCI-Express PHY1 */
++ <0 0x1a244000 0 0x1000>; /* PCI-Express PHY2 */
++ reg-names = "pcie", "pcie phy0", "pcie phy1", "pcie phy2";
++ interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
++ <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
++ <GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
++ interrupt-names = "pcie0", "pcie1", "pcie2";
++ clocks = <&topckgen CLK_TOP_ETHIF_SEL>;
++ clock-names = "pcie";
++ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
++ resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
++ <&hifsys MT2701_HIFSYS_PCIE1_RST>,
++ <&hifsys MT2701_HIFSYS_PCIE2_RST>;
++ reset-names = "pcie0", "pice1", "pcie2";
++
++ bus-range = <0x00 0xff>;
++ #address-cells = <3>;
++ #size-cells = <2>;
++
++ mediatek,hifsys = <&hifsys>;
++
++ ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000 /* io space */
++ 0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>; /* pci memory */
++
++ status = "disabled";
++
++ pcie@1,0 {
++ device_type = "pci";
++ reg = <0x0800 0 0 0 0>;
++
++ #address-cells = <3>;
++ #size-cells = <2>;
++ ranges;
++
++ status = "disabled";
++ };
++
++ pcie@2,0{
++ device_type = "pci";
++ reg = <0x1000 0 0 0 0>;
++
++ #address-cells = <3>;
++ #size-cells = <2>;
++ ranges;
++
++ status = "disabled";
++ };
++
++ pcie@3,0{
++ device_type = "pci";
++ reg = <0x1800 0 0 0 0>;
++
++ #address-cells = <3>;
++ #size-cells = <2>;
++ ranges;
++
++ status = "disabled";
++ };
++ };
++
++Board DTS:
++
++ pcie-controller {
++ status = "okay";
++
++ pci@1,0 {
++ status = "okay";
++ };
++ };
+--
+1.7.10.4
+
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