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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-02 21:01:00 +0800
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-15 23:38:02 +0800
commit82015c4eae2ac67cfed8e98f8d9a4ee77a2d26ca (patch)
tree4b1d99e45c92d21adeee3e665f31a3c4c80702c9 /Documentation/devicetree
parenta7776ec625c8ca90d050953946a5b72eaf41c21c (diff)
ARM: at91: add Shutdown Controller (SHDWC) DT support
Use a string to specific the wakeup mode to make it more readable. Add the Real-time Clock Wake-up support too for sam9g45 and sam9x5. Add AT91_SHDW_CPTWK0_MAX to specific the Max of the Wakeup Counter. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/arm/atmel-at91.txt29
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 1f8782077433..ecc81e368715 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -61,3 +61,32 @@ Examples:
reg = <0xffffe400 0x200
0xffffe600 0x200>;
};
+
+SHDWC Shutdown Controller
+
+required properties:
+- compatible: Should be "atmel,<chip>-shdwc".
+ <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
+- reg: Should contain registers location and length
+
+optional properties:
+- atmel,wakeup-mode: String, operation mode of the wakeup mode.
+ Supported values are: "none", "high", "low", "any".
+- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
+
+optional at91sam9260 properties:
+- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
+
+optional at91sam9rl properties:
+- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
+- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
+
+optional at91sam9x5 properties:
+- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
+
+Example:
+
+ rstc@fffffd00 {
+ compatible = "atmel,at91sam9260-rstc";
+ reg = <0xfffffd00 0x10>;
+ };