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ARM: at91/dt: declare atmel,at91rm9200-st as a syscon 

The system timer register range is used to handle three different
functionalities: Periodic Interval Timer, Real Time Timer and watchdog. Declare
it as a syscon to be able to get a regmap.
Also declare it as a simple-mfd and its watchdog subnode.

Finally, document the watchdog compatible string.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
hifive-unleashed-5.1
Alexandre Belloni 2015-03-12 13:07:25 +01:00 committed by Nicolas Ferre
parent 598e085590
commit b595809b98
2 changed files with 8 additions and 2 deletions
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4
Documentation/devicetree/bindings/arm/atmel-at91.txt
View File

@ -46,10 +46,12 @@ PIT Timer required properties:
shared across all System Controller members.
System Timer (ST) required properties:
- compatible: Should be "atmel,at91rm9200-st"
- compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
- reg: Should contain registers location and length
- interrupts: Should contain interrupt for the ST which is the IRQ line
shared across all System Controller members.
Its subnodes can be:
- watchdog: compatible should be "atmel,at91rm9200-wdt"
TC/TCLIB Timer required properties:
- compatible: Should be "atmel,<chip>-tcb".

6
arch/arm/boot/dts/at91rm9200.dtsi
View File

@ -356,9 +356,13 @@
};
st: timer@fffffd00 {
compatible = "atmel,at91rm9200-st";
compatible = "atmel,at91rm9200-st", "syscon", "simple-mfd";
reg = <0xfffffd00 0x100>;
interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
watchdog {
compatible = "atmel,at91rm9200-wdt";
};
};
rtc: rtc@fffffe00 {