[+cc Rob] On Tue, Jul 21, 2015 at 02:48:42PM +0800, Zhou Wang wrote: > This patch adds related DTS binding document for Hisilicon PCIe host driver. > > Signed-off-by: Zhou Wang <wangzhou1@xxxxxxxxxxxxx> If I merge this via my tree, I'm looking for an ack from Arnd and/or Rob here. > --- > .../devicetree/bindings/pci/hisilicon-pcie.txt | 46 ++++++++++++++++++++++ > 1 file changed, 46 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/hisilicon-pcie.txt > > diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt > new file mode 100644 > index 0000000..6c9b827 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt > @@ -0,0 +1,46 @@ > +Hisilicon PCIe host bridge DT description Even the website at http://hisilicon.com isn't consistent, but there is some indication that the correct capitalization would be "HiSilicon". Since this is English text, feel free to capitalize it correctly here :) Similarly, Synopsys seems to use "DesignWare," so I try to use that when it makes sense. > +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, subctrl, config registers location and length. > +- reg-names: Must include the following entries: > + "rc_dbi": controller configuration registers; > + "subctrl": whole PCIe hosts configuration registers; > + "config": PCIe configuration space registers. > +- msi-parent: Should be its_pcie which is an its receiving MSI interrupts. I guess "its" here is an abbreviation for something; if so, this would read better as "... which is an ITS receiving ..." > +- port-id: Should be 0, 1, 2 or 3. > + > +Optional properties: > +- status: Either "ok" or "disabled". > +- dma-coherent: Present if dma operations are coherent. "if DMA operations" > + > +Example: > + pcie@0xb0080000 { > + compatible = "hisilicon,hip05-pcie", "snps,dw-pcie"; > + reg = <0 0xb0080000 0 0x10000>, <0 0xb0000000 0 0x10000>, > + <0x220 0x00000000 0 0x2000>; > + reg-names = "rc_dbi", "subctrl", "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 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
