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doc: dt: add documentation for nxp,lpc1788-rtc 

Document NXP LPC178x/18xx/408x/43xx bindings

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Joachim Eastwood 2015-07-11 19:28:50 +02:00 committed by Alexandre Belloni
parent 045c6fdd37
commit dcb9372b34
1 changed files with 21 additions and 0 deletions
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Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.txt Normal file
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NXP LPC1788 real-time clock
The LPC1788 RTC provides calendar and clock functionality
together with periodic tick and alarm interrupt support.
Required properties:
- compatible : must contain "nxp,lpc1788-rtc"
- reg : Specifies base physical address and size of the registers.
- interrupts : A single interrupt specifier.
- clocks : Must contain clock specifiers for rtc and register clock
- clock-names : Must contain "rtc" and "reg"
See ../clocks/clock-bindings.txt for details.
Example:
rtc: rtc@40046000 {
compatible = "nxp,lpc1788-rtc";
reg = <0x40046000 0x1000>;
interrupts = <47>;
clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
clock-names = "rtc", "reg";
};