| * ImgTec PowerDown Controller (PDC) Real Time Clock (RTC) |
| |
| Required properties: |
| - compatible: Should be "img,pdc-rtc" |
| - reg: physical base address of the controller and length of |
| memory mapped region. May also contain another region |
| with 1 or 2 non-volatile registers to aid Comet clock |
| rate during poweroff workarounds. |
| - reg-names: Should contain at least "regs". |
| May also contain "nonvolatile". |
| - interrupts: The interrupt number to the cpu should be specified. The |
| number of cells representing a interrupt depends on the |
| parent interrupt controller. |
| |
| Optional properties: |
| - time-set-delay: Number of seconds it takes to set the time. |
| - alarm-irq-delay: Number of seconds that alarm interrupts are delayed. |
| Must not exceed 59 seconds. |
| |
| Example: |
| |
| rtc@02006100 { |
| compatible = "img,pdc-rtc"; |
| reg = <0x02006100 0x100>, /* regs */ |
| <0x02006038 0x8>; /* nonvolatile */ |
| reg-names = "regs", "nonvolatile"; |
| interrupts = <30 4>; |
| }; |
