[PATCH v10 5/6] Documentation: DT: Add HiSilicon PCIe host binding
From: Zhou Wang <hidden>
Date: 2015-10-10 02:46:56
Also in:
linux-arm-kernel, linux-pci, lkml
Subsystem:
open firmware and flattened device tree bindings, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
This patch adds related DTS binding document for HiSilicon PCIe host driver. Signed-off-by: Zhou Wang <wangzhou1-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org> --- .../bindings/arm/hisilicon/hisilicon.txt | 17 +++++++++ .../devicetree/bindings/pci/hisilicon-pcie.txt | 44 ++++++++++++++++++++++ 2 files changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
index 3504dca..6ac7c00 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt@@ -171,6 +171,23 @@ Example: }; ----------------------------------------------------------------------- +Hisilicon HiP05 PCIe-SAS system controller + +Required properties: +- compatible : "hisilicon,pcie-sas-subctrl", "syscon"; +- reg : Register address and size + +The HiP05 PCIe-SAS system controller is shared by PCIe and SAS controllers in +HiP05 Soc to implement some basic configurations. + +Example: + /* for HiP05 PCIe-SAS system */ + pcie_sas: system_controller@0xb0000000 { + compatible = "hisilicon,pcie-sas-subctrl", "syscon"; + reg = <0xb0000000 0x10000>; + }; + +----------------------------------------------------------------------- Hisilicon CPU controller Required properties:
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
new file mode 100644
index 0000000..17c6ed9
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt@@ -0,0 +1,44 @@ +HiSilicon 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 +common properties defined in +Documentation/devicetree/bindings/pci/designware-pci.txt. + +Additional properties are described here: + +Required properties: +- compatible: Should contain "hisilicon,hip05-pcie". +- reg: Should contain rc_dbi, config registers location and length. +- reg-names: Must include the following entries: + "rc_dbi": controller configuration registers; + "config": PCIe configuration space registers. +- msi-parent: Should be its_pcie which is an ITS receiving MSI interrupts. +- port-id: Should be 0, 1, 2 or 3. + +Optional properties: +- status: Either "ok" or "disabled". +- dma-coherent: Present if DMA operations are coherent. + +Example: + pcie@0xb0080000 { + compatible = "hisilicon,hip05-pcie", "snps,dw-pcie"; + reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>; + reg-names = "rc_dbi", "config"; + bus-range = <0 15>; + msi-parent = <&its_pcie>; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + dma-coherent; + ranges = <0x82000000 0 0x00000000 0x220 0x00000000 0 0x10000000>; + num-lanes = <8>; + port-id = <1>; + #interrupts-cells = <1>; + interrupts-map-mask = <0xf800 0 0 7>; + interrupts-map = <0x0 0 0 1 &mbigen_pcie 1 10 + 0x0 0 0 2 &mbigen_pcie 2 11 + 0x0 0 0 3 &mbigen_pcie 3 12 + 0x0 0 0 4 &mbigen_pcie 4 13>; + status = "ok"; + };
--
1.9.1
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