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-NVIDIA Tegra30 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra30-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in", and the board-specific oscillator "osc".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in header file
- <dt-bindings/clock/tegra30-car.h>.
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock {
- compatible = "nvidia,tegra30-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- usb@c5004000 {
- clocks = <&tegra_car TEGRA30_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <12000000>;
- };
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k> <&osc>;
- };
-};