| Message ID | 1471570471-3239-1-git-send-email-shawn.lin@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Fri, Aug 19, 2016 at 09:34:31AM +0800, Shawn Lin wrote: > This patch adds a binding that describes the Rockchip PCIe controller > found on Rockchip SoCs PCIe interface. > > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> > > Acked-by: Rob Herring <robh@kernel.org> > Reviewed-by: Brian Norris <briannorris@chromium.org> I applied both of these to pci/host-rockchip for v4.9, thanks, Shawn! I made a few whitespace and typo fixes in pcie-rockchip.c, so take a look and make sure I didn't break anything. > --- > > Changes in v10: > - fix broken description of msi-map > - s/pcie/PCIe for description > > Changes in v9: None > Changes in v8: > - add Brian's review-tag > > Changes in v7: > - move optional properties ahead of interrupt subnode > - use 0-base index for INTx > > Changes in v6: > - add ack tag from Rob > > Changes in v5: > - fix wrong example reported by Marc > - add seperate section to describe the interrupt controller child > node > > Changes in v4: > - fix example of adding intermediate interrupt controller for pcie > legacy interrrupt > > Changes in v3: > - fix example dts code suggested by Rob and Marc > - remove driver's behaviour of regulator > > Changes in v2: > - fix lots clk/reset stuff suggested by Heiko > - remove msi-parent and add msi-map suggested by Marc > - drop phy related stuff > - some others minor fixes > > .../devicetree/bindings/pci/rockchip-pcie.txt | 106 +++++++++++++++++++++ > 1 file changed, 106 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/rockchip-pcie.txt > > diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt > new file mode 100644 > index 0000000..ba67b39 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt > @@ -0,0 +1,106 @@ > +* Rockchip AXI PCIe Root Port Bridge DT description > + > +Required properties: > +- #address-cells: Address representation for root ports, set to <3> > +- #size-cells: Size representation for root ports, set to <2> > +- #interrupt-cells: specifies the number of cells needed to encode an > + interrupt source. The value must be 1. > +- compatible: Should contain "rockchip,rk3399-pcie" > +- reg: Two register ranges as listed in the reg-names property > +- reg-names: Must include the following names > + - "axi-base" > + - "apb-base" > +- 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: > + - "aclk" > + - "aclk-perf" > + - "hclk" > + - "pm" > +- msi-map: Maps a Requester ID to an MSI controller and associated > + msi-specifier data. See ./pci-msi.txt > +- phys: From PHY bindings: Phandle for the Generic PHY for PCIe. > +- phy-names: MUST be "pcie-phy". > +- interrupts: Three interrupt entries must be specified. > +- interrupt-names: Must include the following names > + - "sys" > + - "legacy" > + - "client" > +- resets: Must contain five entries for each entry in reset-names. > + See ../reset/reset.txt for details. > +- reset-names: Must include the following names > + - "core" > + - "mgmt" > + - "mgmt-sticky" > + - "pipe" > +- pinctrl-names : The pin control state names > +- pinctrl-0: The "default" pinctrl state > +- #interrupt-cells: specifies the number of cells needed to encode an > + interrupt source. The value must be 1. > +- interrupt-map-mask and interrupt-map: standard PCI properties > + > +Optional Property: > +- ep-gpios: contain the entry for pre-reset gpio > +- num-lanes: number of lanes to use > +- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe. > +- vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe. > +- vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe. > + > +*Interrupt controller child node* > +The core controller provides a single interrupt for legacy INTx. The PCIe node > +should contain an interrupt controller node as a target for the PCI > +'interrupt-map' property. This node represents the domain at which the four > +INTx interrupts are decoded and routed. > + > + > +Required properties for Interrupt controller child node: > +- interrupt-controller: identifies the node as an interrupt controller > +- #address-cells: specifies the number of cells needed to encode an > + address. The value must be 0. > +- #interrupt-cells: specifies the number of cells needed to encode an > + interrupt source. The value must be 1. > + > +Example: > + > +pcie0: pcie@f8000000 { > + compatible = "rockchip,rk3399-pcie"; > + #address-cells = <3>; > + #size-cells = <2>; > + clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>, > + <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>; > + clock-names = "aclk", "aclk-perf", > + "hclk", "pm"; > + bus-range = <0x0 0x1>; > + interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>, > + <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>, > + <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>; > + interrupt-names = "sys", "legacy", "client"; > + assigned-clocks = <&cru SCLK_PCIEPHY_REF>; > + assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>; > + assigned-clock-rates = <100000000>; > + ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>; > + ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000 > + 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>; > + num-lanes = <4>; > + msi-map = <0x0 &its 0x0 0x1000>; > + reg = <0x0 0xf8000000 0x0 0x2000000>, <0x0 0xfd000000 0x0 0x1000000>; > + reg-names = "axi-base", "apb-base"; > + resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>, > + <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE>; > + reset-names = "core", "mgmt", "mgmt-sticky", "pipe"; > + phys = <&pcie_phy>; > + phy-names = "pcie-phy"; > + pinctrl-names = "default"; > + pinctrl-0 = <&pcie_clkreq>; > + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 7>; > + interrupt-map = <0 0 0 1 &pcie0_intc 0>, > + <0 0 0 2 &pcie0_intc 1>, > + <0 0 0 3 &pcie0_intc 2>, > + <0 0 0 4 &pcie0_intc 3>; > + pcie0_intc: interrupt-controller { > + interrupt-controller; > + #address-cells = <0>; > + #interrupt-cells = <1>; > + }; > +}; > -- > 2.3.7 > > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
在 2016/8/20 3:33, Bjorn Helgaas 写道: > On Fri, Aug 19, 2016 at 09:34:31AM +0800, Shawn Lin wrote: >> This patch adds a binding that describes the Rockchip PCIe controller >> found on Rockchip SoCs PCIe interface. >> >> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> >> >> Acked-by: Rob Herring <robh@kernel.org> >> Reviewed-by: Brian Norris <briannorris@chromium.org> > > I applied both of these to pci/host-rockchip for v4.9, thanks, Shawn! > > I made a few whitespace and typo fixes in pcie-rockchip.c, so take a > look and make sure I didn't break anything. I checked your branch, host-rockchip, and it's okay. Thanks, Bjorn! > >> --- >> >> Changes in v10: >> - fix broken description of msi-map >> - s/pcie/PCIe for description >> >> Changes in v9: None >> Changes in v8: >> - add Brian's review-tag >> >> Changes in v7: >> - move optional properties ahead of interrupt subnode >> - use 0-base index for INTx >> >> Changes in v6: >> - add ack tag from Rob >> >> Changes in v5: >> - fix wrong example reported by Marc >> - add seperate section to describe the interrupt controller child >> node >> >> Changes in v4: >> - fix example of adding intermediate interrupt controller for pcie >> legacy interrrupt >> >> Changes in v3: >> - fix example dts code suggested by Rob and Marc >> - remove driver's behaviour of regulator >> >> Changes in v2: >> - fix lots clk/reset stuff suggested by Heiko >> - remove msi-parent and add msi-map suggested by Marc >> - drop phy related stuff >> - some others minor fixes >> >> .../devicetree/bindings/pci/rockchip-pcie.txt | 106 +++++++++++++++++++++ >> 1 file changed, 106 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/pci/rockchip-pcie.txt >> >> diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt >> new file mode 100644 >> index 0000000..ba67b39 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt >> @@ -0,0 +1,106 @@ >> +* Rockchip AXI PCIe Root Port Bridge DT description >> + >> +Required properties: >> +- #address-cells: Address representation for root ports, set to <3> >> +- #size-cells: Size representation for root ports, set to <2> >> +- #interrupt-cells: specifies the number of cells needed to encode an >> + interrupt source. The value must be 1. >> +- compatible: Should contain "rockchip,rk3399-pcie" >> +- reg: Two register ranges as listed in the reg-names property >> +- reg-names: Must include the following names >> + - "axi-base" >> + - "apb-base" >> +- 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: >> + - "aclk" >> + - "aclk-perf" >> + - "hclk" >> + - "pm" >> +- msi-map: Maps a Requester ID to an MSI controller and associated >> + msi-specifier data. See ./pci-msi.txt >> +- phys: From PHY bindings: Phandle for the Generic PHY for PCIe. >> +- phy-names: MUST be "pcie-phy". >> +- interrupts: Three interrupt entries must be specified. >> +- interrupt-names: Must include the following names >> + - "sys" >> + - "legacy" >> + - "client" >> +- resets: Must contain five entries for each entry in reset-names. >> + See ../reset/reset.txt for details. >> +- reset-names: Must include the following names >> + - "core" >> + - "mgmt" >> + - "mgmt-sticky" >> + - "pipe" >> +- pinctrl-names : The pin control state names >> +- pinctrl-0: The "default" pinctrl state >> +- #interrupt-cells: specifies the number of cells needed to encode an >> + interrupt source. The value must be 1. >> +- interrupt-map-mask and interrupt-map: standard PCI properties >> + >> +Optional Property: >> +- ep-gpios: contain the entry for pre-reset gpio >> +- num-lanes: number of lanes to use >> +- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe. >> +- vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe. >> +- vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe. >> + >> +*Interrupt controller child node* >> +The core controller provides a single interrupt for legacy INTx. The PCIe node >> +should contain an interrupt controller node as a target for the PCI >> +'interrupt-map' property. This node represents the domain at which the four >> +INTx interrupts are decoded and routed. >> + >> + >> +Required properties for Interrupt controller child node: >> +- interrupt-controller: identifies the node as an interrupt controller >> +- #address-cells: specifies the number of cells needed to encode an >> + address. The value must be 0. >> +- #interrupt-cells: specifies the number of cells needed to encode an >> + interrupt source. The value must be 1. >> + >> +Example: >> + >> +pcie0: pcie@f8000000 { >> + compatible = "rockchip,rk3399-pcie"; >> + #address-cells = <3>; >> + #size-cells = <2>; >> + clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>, >> + <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>; >> + clock-names = "aclk", "aclk-perf", >> + "hclk", "pm"; >> + bus-range = <0x0 0x1>; >> + interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>, >> + <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>, >> + <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>; >> + interrupt-names = "sys", "legacy", "client"; >> + assigned-clocks = <&cru SCLK_PCIEPHY_REF>; >> + assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>; >> + assigned-clock-rates = <100000000>; >> + ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>; >> + ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000 >> + 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>; >> + num-lanes = <4>; >> + msi-map = <0x0 &its 0x0 0x1000>; >> + reg = <0x0 0xf8000000 0x0 0x2000000>, <0x0 0xfd000000 0x0 0x1000000>; >> + reg-names = "axi-base", "apb-base"; >> + resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>, >> + <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE>; >> + reset-names = "core", "mgmt", "mgmt-sticky", "pipe"; >> + phys = <&pcie_phy>; >> + phy-names = "pcie-phy"; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&pcie_clkreq>; >> + #interrupt-cells = <1>; >> + interrupt-map-mask = <0 0 0 7>; >> + interrupt-map = <0 0 0 1 &pcie0_intc 0>, >> + <0 0 0 2 &pcie0_intc 1>, >> + <0 0 0 3 &pcie0_intc 2>, >> + <0 0 0 4 &pcie0_intc 3>; >> + pcie0_intc: interrupt-controller { >> + interrupt-controller; >> + #address-cells = <0>; >> + #interrupt-cells = <1>; >> + }; >> +}; >> -- >> 2.3.7 >> >> > > >
diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt new file mode 100644 index 0000000..ba67b39 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt @@ -0,0 +1,106 @@ +* Rockchip AXI PCIe Root Port Bridge DT description + +Required properties: +- #address-cells: Address representation for root ports, set to <3> +- #size-cells: Size representation for root ports, set to <2> +- #interrupt-cells: specifies the number of cells needed to encode an + interrupt source. The value must be 1. +- compatible: Should contain "rockchip,rk3399-pcie" +- reg: Two register ranges as listed in the reg-names property +- reg-names: Must include the following names + - "axi-base" + - "apb-base" +- 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: + - "aclk" + - "aclk-perf" + - "hclk" + - "pm" +- msi-map: Maps a Requester ID to an MSI controller and associated + msi-specifier data. See ./pci-msi.txt +- phys: From PHY bindings: Phandle for the Generic PHY for PCIe. +- phy-names: MUST be "pcie-phy". +- interrupts: Three interrupt entries must be specified. +- interrupt-names: Must include the following names + - "sys" + - "legacy" + - "client" +- resets: Must contain five entries for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: Must include the following names + - "core" + - "mgmt" + - "mgmt-sticky" + - "pipe" +- pinctrl-names : The pin control state names +- pinctrl-0: The "default" pinctrl state +- #interrupt-cells: specifies the number of cells needed to encode an + interrupt source. The value must be 1. +- interrupt-map-mask and interrupt-map: standard PCI properties + +Optional Property: +- ep-gpios: contain the entry for pre-reset gpio +- num-lanes: number of lanes to use +- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe. +- vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe. +- vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe. + +*Interrupt controller child node* +The core controller provides a single interrupt for legacy INTx. The PCIe node +should contain an interrupt controller node as a target for the PCI +'interrupt-map' property. This node represents the domain at which the four +INTx interrupts are decoded and routed. + + +Required properties for Interrupt controller child node: +- interrupt-controller: identifies the node as an interrupt controller +- #address-cells: specifies the number of cells needed to encode an + address. The value must be 0. +- #interrupt-cells: specifies the number of cells needed to encode an + interrupt source. The value must be 1. + +Example: + +pcie0: pcie@f8000000 { + compatible = "rockchip,rk3399-pcie"; + #address-cells = <3>; + #size-cells = <2>; + clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>, + <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>; + clock-names = "aclk", "aclk-perf", + "hclk", "pm"; + bus-range = <0x0 0x1>; + interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>, + <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>, + <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>; + interrupt-names = "sys", "legacy", "client"; + assigned-clocks = <&cru SCLK_PCIEPHY_REF>; + assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>; + assigned-clock-rates = <100000000>; + ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>; + ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000 + 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>; + num-lanes = <4>; + msi-map = <0x0 &its 0x0 0x1000>; + reg = <0x0 0xf8000000 0x0 0x2000000>, <0x0 0xfd000000 0x0 0x1000000>; + reg-names = "axi-base", "apb-base"; + resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>, + <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE>; + reset-names = "core", "mgmt", "mgmt-sticky", "pipe"; + phys = <&pcie_phy>; + phy-names = "pcie-phy"; + pinctrl-names = "default"; + pinctrl-0 = <&pcie_clkreq>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie0_intc 0>, + <0 0 0 2 &pcie0_intc 1>, + <0 0 0 3 &pcie0_intc 2>, + <0 0 0 4 &pcie0_intc 3>; + pcie0_intc: interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; +};