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Diffstat (limited to 'Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt')
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1 files changed, 0 insertions, 133 deletions
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt deleted file mode 100644 index 576462fae27f..000000000000 --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt +++ /dev/null @@ -1,133 +0,0 @@ -NVIDIA Tegra Power Management Controller (PMC) - -Required properties: -- compatible: Should contain one of the following: - - "nvidia,tegra186-pmc": for Tegra186 - - "nvidia,tegra194-pmc": for Tegra194 - - "nvidia,tegra234-pmc": for Tegra234 -- reg: Must contain an (offset, length) pair of the register set for each - entry in reg-names. -- reg-names: Must include the following entries: - - "pmc" - - "wake" - - "aotag" - - "scratch" - - "misc" (Only for Tegra194 and later) - -Optional properties: -- nvidia,invert-interrupt: If present, inverts the PMU interrupt signal. -- interrupt-controller: Identifies the node as an interrupt controller. -- #interrupt-cells: Specifies the number of cells needed to encode an - interrupt source. The value must be 2. - -Example: - -SoC DTSI: - - pmc@c3600000 { - compatible = "nvidia,tegra186-pmc"; - reg = <0 0x0c360000 0 0x10000>, - <0 0x0c370000 0 0x10000>, - <0 0x0c380000 0 0x10000>, - <0 0x0c390000 0 0x10000>; - reg-names = "pmc", "wake", "aotag", "scratch"; - }; - -Board DTS: - - pmc@c360000 { - nvidia,invert-interrupt; - }; - -== Pad Control == - -On Tegra SoCs a pad is a set of pins which are configured as a group. -The pin grouping is a fixed attribute of the hardware. The PMC can be -used to set pad power state and signaling voltage. A pad can be either -in active or power down mode. The support for power state and signaling -voltage configuration varies depending on the pad in question. 3.3 V and -1.8 V signaling voltages are supported on pins where software -controllable signaling voltage switching is available. - -Pad configurations are described with pin configuration nodes which -are placed under the pmc node and they are referred to by the pinctrl -client properties. For more information see -Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt. - -The following pads are present on Tegra186: -csia csib dsi mipi-bias -pex-clk-bias pex-clk3 pex-clk2 pex-clk1 -usb0 usb1 usb2 usb-bias -uart audio hsic dbg -hdmi-dp0 hdmi-dp1 pex-cntrl sdmmc2-hv -sdmmc4 cam dsib dsic -dsid csic csid csie -dsif spi ufs dmic-hv -edp sdmmc1-hv sdmmc3-hv conn -audio-hv ao-hv - -Required pin configuration properties: - - pins: A list of strings, each of which contains the name of a pad - to be configured. - -Optional pin configuration properties: - - low-power-enable: Configure the pad into power down mode - - low-power-disable: Configure the pad into active mode - - power-source: Must contain either TEGRA_IO_PAD_VOLTAGE_1V8 or - TEGRA_IO_PAD_VOLTAGE_3V3 to select between signaling voltages. - The values are defined in - include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h. - -Note: The power state can be configured on all of the above pads except - for ao-hv. Following pads have software configurable signaling - voltages: sdmmc2-hv, dmic-hv, sdmmc1-hv, sdmmc3-hv, audio-hv, - ao-hv. - -Pad configuration state example: - pmc: pmc@7000e400 { - compatible = "nvidia,tegra186-pmc"; - reg = <0 0x0c360000 0 0x10000>, - <0 0x0c370000 0 0x10000>, - <0 0x0c380000 0 0x10000>, - <0 0x0c390000 0 0x10000>; - reg-names = "pmc", "wake", "aotag", "scratch"; - - ... - - sdmmc1_3v3: sdmmc1-3v3 { - pins = "sdmmc1-hv"; - power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>; - }; - - sdmmc1_1v8: sdmmc1-1v8 { - pins = "sdmmc1-hv"; - power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>; - }; - - hdmi_off: hdmi-off { - pins = "hdmi"; - low-power-enable; - } - - hdmi_on: hdmi-on { - pins = "hdmi"; - low-power-disable; - } - }; - -Pinctrl client example: - sdmmc1: sdhci@3400000 { - ... - pinctrl-names = "sdmmc-3v3", "sdmmc-1v8"; - pinctrl-0 = <&sdmmc1_3v3>; - pinctrl-1 = <&sdmmc1_1v8>; - }; - - ... - - sor0: sor@15540000 { - ... - pinctrl-0 = <&hdmi_off>; - pinctrl-1 = <&hdmi_on>; - pinctrl-names = "hdmi-on", "hdmi-off"; - }; |