diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.4/0024-dt-bindings-add-MediaTek-PCIe-binding-documentation.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.4/0024-dt-bindings-add-MediaTek-PCIe-binding-documentation.patch | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.4/0024-dt-bindings-add-MediaTek-PCIe-binding-documentation.patch b/target/linux/mediatek/patches-4.4/0024-dt-bindings-add-MediaTek-PCIe-binding-documentation.patch new file mode 100644 index 0000000000..227483355a --- /dev/null +++ b/target/linux/mediatek/patches-4.4/0024-dt-bindings-add-MediaTek-PCIe-binding-documentation.patch @@ -0,0 +1,160 @@ +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 + |