18c2ecf20Sopenharmony_ciNVIDIA Tegra20 real-time clock 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciThe Tegra RTC maintains seconds and milliseconds counters, and five alarm 48c2ecf20Sopenharmony_ciregisters. The alarms and other interrupts may wake the system from low-power 58c2ecf20Sopenharmony_cistate. 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ciRequired properties: 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci- compatible : For Tegra20, must contain "nvidia,tegra20-rtc". Otherwise, 108c2ecf20Sopenharmony_ci must contain '"nvidia,<chip>-rtc", "nvidia,tegra20-rtc"', where <chip> 118c2ecf20Sopenharmony_ci can be tegra30, tegra114, tegra124, or tegra132. 128c2ecf20Sopenharmony_ci- reg : Specifies base physical address and size of the registers. 138c2ecf20Sopenharmony_ci- interrupts : A single interrupt specifier. 148c2ecf20Sopenharmony_ci- clocks : Must contain one entry, for the module clock. 158c2ecf20Sopenharmony_ci See ../clocks/clock-bindings.txt for details. 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciExample: 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_citimer { 208c2ecf20Sopenharmony_ci compatible = "nvidia,tegra20-rtc"; 218c2ecf20Sopenharmony_ci reg = <0x7000e000 0x100>; 228c2ecf20Sopenharmony_ci interrupts = <0 2 0x04>; 238c2ecf20Sopenharmony_ci clocks = <&tegra_car 4>; 248c2ecf20Sopenharmony_ci}; 25