| Message ID | 1449149725-27607-3-git-send-email-stanimir.varbanov@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Dec 03, 2015 at 03:35:21PM +0200, Stanimir Varbanov wrote: > From: Stanimir Varbanov <svarbanov@mm-sol.com> > > Document Qualcomm PCIe driver devicetree bindings. > > Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> > Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Acked-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/bindings/pci/qcom,pcie.txt | 233 ++++++++++++++++++++ > 1 file changed, 233 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/qcom,pcie.txt > > diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt > new file mode 100644 > index 000000000000..6d71ee2e335d > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt > @@ -0,0 +1,233 @@ > +* Qualcomm PCI express root complex > + > +- compatible: > + Usage: required > + Value type: <stringlist> > + Definition: Value should contain > + - "qcom,pcie-ipq8064" for ipq8064 > + - "qcom,pcie-apq8064" for apq8064 > + - "qcom,pcie-apq8084" for apq8084 > + > +- reg: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: Register ranges as listed in the reg-names property > + > +- reg-names: > + Usage: required > + Value type: <stringlist> > + Definition: Must include the following entries > + - "parf" Qualcomm specific registers > + - "dbi" Designware PCIe registers > + - "elbi" External local bus interface registers > + - "config" PCIe configuration space > + > +- device_type: > + Usage: required > + Value type: <string> > + Definition: Should be "pci". As specified in designware-pcie.txt > + > +- #address-cells: > + Usage: required > + Value type: <u32> > + Definition: Should be set to 3. As specified in designware-pcie.txt > + > +- #size-cells: > + Usage: required > + Value type: <u32> > + Definition: Should be set 2. As specified in designware-pcie.txt > + > +- ranges: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: As specified in designware-pcie.txt > + > +- interrupts: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: MSI interrupt > + > +- interrupt-names: > + Usage: required > + Value type: <stringlist> > + Definition: Should contain "msi" > + > +- #interrupt-cells: > + Usage: required > + Value type: <u32> > + Definition: Should be 1. As specified in designware-pcie.txt > + > +- interrupt-map-mask: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: As specified in designware-pcie.txt > + > +- interrupt-map: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: As specified in designware-pcie.txt > + > +- clocks: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: List of phandle and clock specifier pairs as listed > + in clock-names property > + > +- clock-names: > + Usage: required > + Value type: <stringlist> > + Definition: Should contain the following entries > + - "iface" Configuration AHB clock > + > +- clock-names: > + Usage: required for ipq/apq8064 > + Value type: <stringlist> > + Definition: Should contain the following entries > + - "core" Clocks the pcie hw block > + - "phy" Clocks the pcie PHY block > +- clock-names: > + Usage: required for apq8084 > + Value type: <stringlist> > + Definition: Should contain the following entries > + - "aux" Auxiliary (AUX) clock > + - "bus_master" Master AXI clock > + - "bus_slave" Slave AXI clock > +- resets: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: List of phandle and reset specifier pairs as listed > + in reset-names property > + > +- reset-names: > + Usage: required for ipq/apq8064 > + Value type: <stringlist> > + Definition: Should contain the following entries > + - "axi" AXI reset > + - "ahb" AHB reset > + - "por" POR reset > + - "pci" PCI reset > + - "phy" PHY reset > + > +- reset-names: > + Usage: required for apq8084 > + Value type: <stringlist> > + Definition: Should contain the following entries > + - "core" Core reset > + > +- power-domains: > + Usage: required for apq8084 > + Value type: <prop-encoded-array> > + Definition: A phandle and power domain specifier pair to the > + power domain which is responsible for collapsing > + and restoring power to the peripheral > + > +- vdda-supply: > + Usage: required > + Value type: <phandle> > + Definition: A phandle to the core analog power supply > + > +- vdda_phy-supply: > + Usage: required for ipq/apq8064 > + Value type: <phandle> > + Definition: A phandle to the analog power supply for PHY > + > +- vdda_refclk-supply: > + Usage: required for ipq/apq8064 > + Value type: <phandle> > + Definition: A phandle to the analog power supply for IC which generates > + reference clock > + > +- phys: > + Usage: required for apq8084 > + Value type: <phandle> > + Definition: List of phandle(s) as listed in phy-names property > + > +- phy-names: > + Usage: required for apq8084 > + Value type: <stringlist> > + Definition: Should contain "pciephy" > + > +- <name>-gpios: > + Usage: optional > + Value type: <prop-encoded-array> > + Definition: List of phandle and gpio specifier pairs. Should contain > + - "perst-gpios" PCIe endpoint reset signal line > + - "wake-gpios" PCIe endpoint wake signal line > + > +* Example for ipq/apq8064 > + pcie@1b500000 { > + compatible = "qcom,pcie-apq8064", "qcom,pcie-ipq8064", "snps,dw-pcie"; > + reg = <0x1b500000 0x1000 > + 0x1b502000 0x80 > + 0x1b600000 0x100 > + 0x0ff00000 0x100000>; > + reg-names = "dbi", "elbi", "parf", "config"; > + device_type = "pci"; > + linux,pci-domain = <0>; > + bus-range = <0x00 0xff>; > + num-lanes = <1>; > + #address-cells = <3>; > + #size-cells = <2>; > + ranges = <0x81000000 0 0 0x0fe00000 0 0x00100000 /* I/O */ > + 0x82000000 0 0 0x08000000 0 0x07e00000>; /* memory */ > + interrupts = <GIC_SPI 238 IRQ_TYPE_NONE>; > + interrupt-names = "msi"; > + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 0x7>; > + interrupt-map = <0 0 0 1 &intc 0 36 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ > + <0 0 0 2 &intc 0 37 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ > + <0 0 0 3 &intc 0 38 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ > + <0 0 0 4 &intc 0 39 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ > + clocks = <&gcc PCIE_A_CLK>, > + <&gcc PCIE_H_CLK>, > + <&gcc PCIE_PHY_CLK>; > + clock-names = "core", "iface", "phy"; > + resets = <&gcc PCIE_ACLK_RESET>, > + <&gcc PCIE_HCLK_RESET>, > + <&gcc PCIE_POR_RESET>, > + <&gcc PCIE_PCI_RESET>, > + <&gcc PCIE_PHY_RESET>; > + reset-names = "axi", "ahb", "por", "pci", "phy"; > + pinctrl-0 = <&pcie_pins_default>; > + pinctrl-names = "default"; > + }; > + > +* Example for apq8084 > + pcie0@fc520000 { > + compatible = "qcom,pcie-apq8084", "snps,dw-pcie"; > + reg = <0xfc520000 0x2000>, > + <0xff000000 0x1000>, > + <0xff001000 0x1000>, > + <0xff002000 0x2000>; > + reg-names = "parf", "dbi", "elbi", "config"; > + device_type = "pci"; > + linux,pci-domain = <0>; > + bus-range = <0x00 0xff>; > + num-lanes = <1>; > + #address-cells = <3>; > + #size-cells = <2>; > + ranges = <0x81000000 0 0 0xff200000 0 0x00100000 /* I/O */ > + 0x82000000 0 0x00300000 0xff300000 0 0x00d00000>; /* memory */ > + interrupts = <GIC_SPI 243 IRQ_TYPE_NONE>; > + interrupt-names = "msi"; > + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 0x7>; > + interrupt-map = <0 0 0 1 &intc 0 244 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ > + <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ > + <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ > + <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ > + clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>, > + <&gcc GCC_PCIE_0_MSTR_AXI_CLK>, > + <&gcc GCC_PCIE_0_SLV_AXI_CLK>, > + <&gcc GCC_PCIE_0_AUX_CLK>; > + clock-names = "iface", "master_bus", "slave_bus", "aux"; > + resets = <&gcc GCC_PCIE_0_BCR>; > + reset-names = "core"; > + power-domains = <&gcc PCIE0_GDSC>; > + vdda-supply = <&pma8084_l3>; > + phys = <&pciephy0>; > + phy-names = "pciephy"; > + perst-gpio = <&tlmm 70 GPIO_ACTIVE_LOW>; > + pinctrl-0 = <&pcie0_pins_default>; > + pinctrl-names = "default"; > + }; > -- > 1.7.9.5 >
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt new file mode 100644 index 000000000000..6d71ee2e335d --- /dev/null +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt @@ -0,0 +1,233 @@ +* Qualcomm PCI express root complex + +- compatible: + Usage: required + Value type: <stringlist> + Definition: Value should contain + - "qcom,pcie-ipq8064" for ipq8064 + - "qcom,pcie-apq8064" for apq8064 + - "qcom,pcie-apq8084" for apq8084 + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: Register ranges as listed in the reg-names property + +- reg-names: + Usage: required + Value type: <stringlist> + Definition: Must include the following entries + - "parf" Qualcomm specific registers + - "dbi" Designware PCIe registers + - "elbi" External local bus interface registers + - "config" PCIe configuration space + +- device_type: + Usage: required + Value type: <string> + Definition: Should be "pci". As specified in designware-pcie.txt + +- #address-cells: + Usage: required + Value type: <u32> + Definition: Should be set to 3. As specified in designware-pcie.txt + +- #size-cells: + Usage: required + Value type: <u32> + Definition: Should be set 2. As specified in designware-pcie.txt + +- ranges: + Usage: required + Value type: <prop-encoded-array> + Definition: As specified in designware-pcie.txt + +- interrupts: + Usage: required + Value type: <prop-encoded-array> + Definition: MSI interrupt + +- interrupt-names: + Usage: required + Value type: <stringlist> + Definition: Should contain "msi" + +- #interrupt-cells: + Usage: required + Value type: <u32> + Definition: Should be 1. As specified in designware-pcie.txt + +- interrupt-map-mask: + Usage: required + Value type: <prop-encoded-array> + Definition: As specified in designware-pcie.txt + +- interrupt-map: + Usage: required + Value type: <prop-encoded-array> + Definition: As specified in designware-pcie.txt + +- clocks: + Usage: required + Value type: <prop-encoded-array> + Definition: List of phandle and clock specifier pairs as listed + in clock-names property + +- clock-names: + Usage: required + Value type: <stringlist> + Definition: Should contain the following entries + - "iface" Configuration AHB clock + +- clock-names: + Usage: required for ipq/apq8064 + Value type: <stringlist> + Definition: Should contain the following entries + - "core" Clocks the pcie hw block + - "phy" Clocks the pcie PHY block +- clock-names: + Usage: required for apq8084 + Value type: <stringlist> + Definition: Should contain the following entries + - "aux" Auxiliary (AUX) clock + - "bus_master" Master AXI clock + - "bus_slave" Slave AXI clock +- resets: + Usage: required + Value type: <prop-encoded-array> + Definition: List of phandle and reset specifier pairs as listed + in reset-names property + +- reset-names: + Usage: required for ipq/apq8064 + Value type: <stringlist> + Definition: Should contain the following entries + - "axi" AXI reset + - "ahb" AHB reset + - "por" POR reset + - "pci" PCI reset + - "phy" PHY reset + +- reset-names: + Usage: required for apq8084 + Value type: <stringlist> + Definition: Should contain the following entries + - "core" Core reset + +- power-domains: + Usage: required for apq8084 + Value type: <prop-encoded-array> + Definition: A phandle and power domain specifier pair to the + power domain which is responsible for collapsing + and restoring power to the peripheral + +- vdda-supply: + Usage: required + Value type: <phandle> + Definition: A phandle to the core analog power supply + +- vdda_phy-supply: + Usage: required for ipq/apq8064 + Value type: <phandle> + Definition: A phandle to the analog power supply for PHY + +- vdda_refclk-supply: + Usage: required for ipq/apq8064 + Value type: <phandle> + Definition: A phandle to the analog power supply for IC which generates + reference clock + +- phys: + Usage: required for apq8084 + Value type: <phandle> + Definition: List of phandle(s) as listed in phy-names property + +- phy-names: + Usage: required for apq8084 + Value type: <stringlist> + Definition: Should contain "pciephy" + +- <name>-gpios: + Usage: optional + Value type: <prop-encoded-array> + Definition: List of phandle and gpio specifier pairs. Should contain + - "perst-gpios" PCIe endpoint reset signal line + - "wake-gpios" PCIe endpoint wake signal line + +* Example for ipq/apq8064 + pcie@1b500000 { + compatible = "qcom,pcie-apq8064", "qcom,pcie-ipq8064", "snps,dw-pcie"; + reg = <0x1b500000 0x1000 + 0x1b502000 0x80 + 0x1b600000 0x100 + 0x0ff00000 0x100000>; + reg-names = "dbi", "elbi", "parf", "config"; + device_type = "pci"; + linux,pci-domain = <0>; + bus-range = <0x00 0xff>; + num-lanes = <1>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x81000000 0 0 0x0fe00000 0 0x00100000 /* I/O */ + 0x82000000 0 0 0x08000000 0 0x07e00000>; /* memory */ + interrupts = <GIC_SPI 238 IRQ_TYPE_NONE>; + interrupt-names = "msi"; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc 0 36 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ + <0 0 0 2 &intc 0 37 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ + <0 0 0 3 &intc 0 38 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ + <0 0 0 4 &intc 0 39 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ + clocks = <&gcc PCIE_A_CLK>, + <&gcc PCIE_H_CLK>, + <&gcc PCIE_PHY_CLK>; + clock-names = "core", "iface", "phy"; + resets = <&gcc PCIE_ACLK_RESET>, + <&gcc PCIE_HCLK_RESET>, + <&gcc PCIE_POR_RESET>, + <&gcc PCIE_PCI_RESET>, + <&gcc PCIE_PHY_RESET>; + reset-names = "axi", "ahb", "por", "pci", "phy"; + pinctrl-0 = <&pcie_pins_default>; + pinctrl-names = "default"; + }; + +* Example for apq8084 + pcie0@fc520000 { + compatible = "qcom,pcie-apq8084", "snps,dw-pcie"; + reg = <0xfc520000 0x2000>, + <0xff000000 0x1000>, + <0xff001000 0x1000>, + <0xff002000 0x2000>; + reg-names = "parf", "dbi", "elbi", "config"; + device_type = "pci"; + linux,pci-domain = <0>; + bus-range = <0x00 0xff>; + num-lanes = <1>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x81000000 0 0 0xff200000 0 0x00100000 /* I/O */ + 0x82000000 0 0x00300000 0xff300000 0 0x00d00000>; /* memory */ + interrupts = <GIC_SPI 243 IRQ_TYPE_NONE>; + interrupt-names = "msi"; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc 0 244 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ + <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ + <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ + <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ + clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>, + <&gcc GCC_PCIE_0_MSTR_AXI_CLK>, + <&gcc GCC_PCIE_0_SLV_AXI_CLK>, + <&gcc GCC_PCIE_0_AUX_CLK>; + clock-names = "iface", "master_bus", "slave_bus", "aux"; + resets = <&gcc GCC_PCIE_0_BCR>; + reset-names = "core"; + power-domains = <&gcc PCIE0_GDSC>; + vdda-supply = <&pma8084_l3>; + phys = <&pciephy0>; + phy-names = "pciephy"; + perst-gpio = <&tlmm 70 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&pcie0_pins_default>; + pinctrl-names = "default"; + };