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1* Real Time Clock for Renesas SH and ARM SoCs
2
3Required properties:
4- compatible: Should be "renesas,r7s72100-rtc" and "renesas,sh-rtc" as a
5 fallback.
6- reg: physical base address and length of memory mapped region.
7- interrupts: 3 interrupts for alarm, period, and carry.
8- interrupt-names: The interrupts should be labeled as "alarm", "period", and
9 "carry".
10- clocks: The functional clock source for the RTC controller must be listed
11 first (if exists). Additionally, potential clock counting sources are to be
12 listed.
13- clock-names: The functional clock must be labeled as "fck". Other clocks
14 may be named in accordance to the SoC hardware manuals.
15
16
17Example:
18rtc: rtc@fcff1000 {
19 compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
20 reg = <0xfcff1000 0x2e>;
21 interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
22 GIC_SPI 277 IRQ_TYPE_EDGE_RISING
23 GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
24 interrupt-names = "alarm", "period", "carry";
25 clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
26 <&rtc_x3_clk>, <&extal_clk>;
27 clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
28};