The new shutdown controller compatible with sama5d2 has a new binding
documentation and properties.
Signed-off-by: Nicolas Ferre <nicolas.fe...@atmel.com>
---
Changes in v3:
- get and use slow clock and specify its handler in binding
Changes in v2: None
.../devicetree/bindings/arm/atmel-at91.txt | 54 ++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt
b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 7fd64ec9ee1d..253e573f28c4 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -147,6 +147,60 @@ Example:
clocks = <&clk32k>;
};
+SHDWC Shutdown Controller (Alternative)
+
+1) shdwc node
+
+required properties:
+- compatible: should be "atmel,sama5d2-shdwc".
+- reg: should contain registers location and length
+- clocks: phandle to input clock.
+- #address-cells: should be one. The cell is the wake-up input index.
+- #size-cells: should be zero.
+
+optional properties:
+
+- atmel,wakeup-debouncer: minimum wake-up inputs debouncer period in
+ micro-seconds. It's usually a board-related property.
+- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up.
+
+The node contains child nodes for each wake-up input that the platform uses.
+
+2) input nodes
+
+Wake-up input nodes are usually described in the "board" part of the Device
+Tree. Note also that input 0 is linked to the wake-up pin and is frequently
+used.
+
+Required properties:
+- reg: should contain the wake-up input index [0 - 15].
+
+Optional properties:
+- atmel,wakeup-type: string, operation mode of the input described by the child
+ node. Supported values are: "high" or "low".
+
+Example:
+
+On the SoC side:
+ shdwc@f8048010 {
+ compatible = "atmel,sama5d2-shdwc";
+ reg = <0xf8048010 0x10>;
+ clocks = <&clk32k>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,wakeup-rtc-timer;
+ };
+
+On the board side:
+ shdwc@f8048010 {
+ atmel,shdwc-debouncer = <976>;
+
+ input@0 {
+ reg = <0>;
+ atmel,wakeup-type = "low";
+ };
+ };
+
Special Function Registers (SFR)
Special Function Registers (SFR) manage specific aspects of the integrated
--
2.1.3
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