NVIDIA Tegra20 real-time clock The Tegra RTC maintains seconds and milliseconds counters, and five alarm registers. The alarms and other interrupts may wake the system from low-power state. Required properties: - compatible : For Tegra20, must contain "nvidia,tegra20-rtc". Otherwise, must contain '"nvidia,-rtc", "nvidia,tegra20-rtc"', where can be tegra30, tegra114, tegra124, or tegra132. - reg : Specifies base physical address and size of the registers. - interrupts : A single interrupt specifier. - clocks : Must contain one entry, for the module clock. See ../clocks/clock-bindings.txt for details. Example: timer { compatible = "nvidia,tegra20-rtc"; reg = <0x7000e000 0x100>; interrupts = <0 2 0x04>; clocks = <&tegra_car 4>; };