| Message ID | 1562326911-26855-5-git-send-email-nkristam@nvidia.com |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | Tegra XUSB gadget driver support | expand |
| Context | Check | Description |
|---|---|---|
| robh/checkpatch | success |
On Fri, Jul 05, 2019 at 05:11:47PM +0530, Nagarjuna Kristam wrote: > Add device-tree binding documentation for the XUSB device mode controller > present on Tegra210 SoC. This controller supports the USB 3.0 > specification. > > Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com> > Reviewed-by: JC Kuo <jckuo@nvidia.com> > --- > .../devicetree/bindings/usb/nvidia,tegra-xudc.txt | 110 +++++++++++++++++++++ > 1 file changed, 110 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt > > diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt > new file mode 100644 > index 0000000..c6a1b81 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt > @@ -0,0 +1,110 @@ > +Device tree binding for NVIDIA Tegra XUSB device mode controller (XUDC) > +======================================================================= > + > +The Tegra XUDC controller supports both USB 2.0 HighSpeed/FullSpeed and > +USB 3.0 SuperSpeed protocols. > + > +Required properties: > +-------------------- > +- compatible: For Tegra210, must contain "nvidia,tegra210-xudc". > +- reg: Must contain the base and length of all registers used. > +- interrupts: Must contain the XUSB device interrupt. > +- clocks: Must contain an entry for all clocks used. > + See ../clock/clock-bindings.txt for details. > +- clock-names: Must include the following entries: > + - dev: Clock to enable core XUSB dev clock. > + - ss: Clock to enable XUSB super speed clock. > + - ss_src: Clock to enable XUSB super speed dev clock. > + - hs_src: Clock to enable XUSB high speed dev clock. > + - fs_src: Clock to enable XUSB full speed dev clock. > +- nvidia,xusb-padctl: phandle to the XUSB pad controller that is used to > + configure the USB pads used by the XUDC controller. > +- power-domains: A list of PM domain specifiers that reference each power-domain > + used by the XUSB device mode controller. This list must comprise of a specifier > + for the XUSBA and XUSBB power-domains. See ../power/power_domain.txt and > + ../arm/tegra/nvidia,tegra20-pmc.txt for details. > +- power-domain-names: A list of names that represent each of the specifiers in > + the 'power-domains' property. Must include 'ss' and 'dev'. The order matters and is the opposite of the example. > +- phys: Must contain an entry for each entry in phy-names. > + See ../phy/phy-bindings.txt for details. > +- phy-names: Should include an entry for each PHY used by the controller. > + Names must be "usb2", and "usb3" if support SuperSpeed device mode. > + - "usb3" phy, SuperSpeed (SSTX+/SSTX-/SSRX+/SSRX-) data lines. > + - "usb2" phy, USB 2.0 (D+/D-) data lines. > + > +For Tegra210: > +- reg-names: Must include the following entries: > + - base: XUSB device controller registers. > + - fpci: XUSB device PCI Config registers. > + - ipfs: XUSB device registers. > +- avddio-usb-supply: PCIe/USB3 analog logic power supply. Must supply 1.05 V. > +- hvdd-usb-supply: USB controller power supply. Must supply 3.3 V. > + > + > +Optional properties: > +-------------------- > +- usb-role-switch: boolean property to indicate use of USB Role Switch driver. > + > +Sub-nodes: > +---------- > +- The port would be added as subnode if use "usb-role-switch" property. > + see graph.txt. > + > +Example: > +-------- > + pmc: pmc@7000e400 { > + compatible = "nvidia,tegra210-pmc"; > + reg = <0x0 0x7000e400 0x0 0x400>; > + clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>; > + clock-names = "pclk", "clk32k_in"; > + > + powergates { > + pd_xusbss: xusba { > + clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>; > + resets = <&tegra_car 156>; > + #power-domain-cells = <0>; > + }; > + > + pd_xusbdev: xusbb { > + clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>; > + resets = <&tegra_car 95>; > + #power-domain-cells = <0>; > + }; > + }; > + }; > + > + xudc@700d0000 { usb@... > + compatible = "nvidia,tegra210-xudc"; > + reg = <0x0 0x700d0000 0x0 0x8000>, > + <0x0 0x700d8000 0x0 0x1000>, > + <0x0 0x700d9000 0x0 0x1000>; > + reg-names = "base", "fpci", "ipfs"; > + > + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; > + > + clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>, > + <&tegra_car TEGRA210_CLK_XUSB_SS>, > + <&tegra_car TEGRA210_CLK_XUSB_SSP_SRC>, > + <&tegra_car TEGRA210_CLK_XUSB_HS_SRC>, > + <&tegra_car TEGRA210_CLK_XUSB_FS_SRC>; > + clock-names = "dev", "ss", "ss_src", "hs_src", "fs_src"; > + > + power-domains = <&pd_xusbdev>, <&pd_xusbss>; > + power-domain-names = "dev", "ss"; > + > + nvidia,xusb-padctl = <&padctl>; > + > + phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>; Use a label. > + phy-names = "usb2; > + > + avddio-usb-supply = <&vdd_pex_1v05>; > + hvdd-usb-supply = <&vdd_3v3_sys>; > + > + usb-role-switch; > + port { > + usb_role_switch: endpoint@0 { Don't need a unit address. > + remote-endpoint = <&bconn_ep>; > + }; > + }; > + > + }; > -- > 2.7.4 >
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt new file mode 100644 index 0000000..c6a1b81 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.txt @@ -0,0 +1,110 @@ +Device tree binding for NVIDIA Tegra XUSB device mode controller (XUDC) +======================================================================= + +The Tegra XUDC controller supports both USB 2.0 HighSpeed/FullSpeed and +USB 3.0 SuperSpeed protocols. + +Required properties: +-------------------- +- compatible: For Tegra210, must contain "nvidia,tegra210-xudc". +- reg: Must contain the base and length of all registers used. +- interrupts: Must contain the XUSB device interrupt. +- clocks: Must contain an entry for all clocks used. + See ../clock/clock-bindings.txt for details. +- clock-names: Must include the following entries: + - dev: Clock to enable core XUSB dev clock. + - ss: Clock to enable XUSB super speed clock. + - ss_src: Clock to enable XUSB super speed dev clock. + - hs_src: Clock to enable XUSB high speed dev clock. + - fs_src: Clock to enable XUSB full speed dev clock. +- nvidia,xusb-padctl: phandle to the XUSB pad controller that is used to + configure the USB pads used by the XUDC controller. +- power-domains: A list of PM domain specifiers that reference each power-domain + used by the XUSB device mode controller. This list must comprise of a specifier + for the XUSBA and XUSBB power-domains. See ../power/power_domain.txt and + ../arm/tegra/nvidia,tegra20-pmc.txt for details. +- power-domain-names: A list of names that represent each of the specifiers in + the 'power-domains' property. Must include 'ss' and 'dev'. +- phys: Must contain an entry for each entry in phy-names. + See ../phy/phy-bindings.txt for details. +- phy-names: Should include an entry for each PHY used by the controller. + Names must be "usb2", and "usb3" if support SuperSpeed device mode. + - "usb3" phy, SuperSpeed (SSTX+/SSTX-/SSRX+/SSRX-) data lines. + - "usb2" phy, USB 2.0 (D+/D-) data lines. + +For Tegra210: +- reg-names: Must include the following entries: + - base: XUSB device controller registers. + - fpci: XUSB device PCI Config registers. + - ipfs: XUSB device registers. +- avddio-usb-supply: PCIe/USB3 analog logic power supply. Must supply 1.05 V. +- hvdd-usb-supply: USB controller power supply. Must supply 3.3 V. + + +Optional properties: +-------------------- +- usb-role-switch: boolean property to indicate use of USB Role Switch driver. + +Sub-nodes: +---------- +- The port would be added as subnode if use "usb-role-switch" property. + see graph.txt. + +Example: +-------- + pmc: pmc@7000e400 { + compatible = "nvidia,tegra210-pmc"; + reg = <0x0 0x7000e400 0x0 0x400>; + clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>; + clock-names = "pclk", "clk32k_in"; + + powergates { + pd_xusbss: xusba { + clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>; + resets = <&tegra_car 156>; + #power-domain-cells = <0>; + }; + + pd_xusbdev: xusbb { + clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>; + resets = <&tegra_car 95>; + #power-domain-cells = <0>; + }; + }; + }; + + xudc@700d0000 { + compatible = "nvidia,tegra210-xudc"; + reg = <0x0 0x700d0000 0x0 0x8000>, + <0x0 0x700d8000 0x0 0x1000>, + <0x0 0x700d9000 0x0 0x1000>; + reg-names = "base", "fpci", "ipfs"; + + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; + + clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>, + <&tegra_car TEGRA210_CLK_XUSB_SS>, + <&tegra_car TEGRA210_CLK_XUSB_SSP_SRC>, + <&tegra_car TEGRA210_CLK_XUSB_HS_SRC>, + <&tegra_car TEGRA210_CLK_XUSB_FS_SRC>; + clock-names = "dev", "ss", "ss_src", "hs_src", "fs_src"; + + power-domains = <&pd_xusbdev>, <&pd_xusbss>; + power-domain-names = "dev", "ss"; + + nvidia,xusb-padctl = <&padctl>; + + phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>; + phy-names = "usb2; + + avddio-usb-supply = <&vdd_pex_1v05>; + hvdd-usb-supply = <&vdd_3v3_sys>; + + usb-role-switch; + port { + usb_role_switch: endpoint@0 { + remote-endpoint = <&bconn_ep>; + }; + }; + + };