From: Wang Dongsheng <dongsheng.wang@xxxxxxxxxxxxx>
In freescale layerscape platform there is only FTM0 can be used as
alarm timer to wake up system. So add FTM0 description for devicetree
document.
Signed-off-by: Wang Dongsheng <dongsheng.wang@xxxxxxxxxxxxx>
---
V3:
Include this patch in V3.
diff --git a/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt b/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt
index aa8c402..380a0b3d 100644
--- a/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt
+++ b/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt
@@ -1,5 +1,7 @@
Freescale FlexTimer Module (FTM) Timer
+* Default FTM Timer
+
Required properties:
- compatible : should be "fsl,ftm-timer"
@@ -29,3 +31,26 @@ ftm: ftm@400b8000 {
<&clks VF610_CLK_FTM3_EXT_FIX_EN>;
big-endian;
};
+
+* FTM Alarm Timer
+ The default FTM device contains eight FlexTimer modules. FlexTimer1 is in
+ on-domain(power is not switched off in deep sleep mode). Other seven FlexTimer
+ modules(flextimer2/3/4/5/6/7/8) are in off-domain (power is switched off in
+ deep sleep mode).
+
+Required properties:
+
+- compatible : should be "fsl,ftm-alarm".
+- reg : should contain base address and length of FTM timer 0 register.
+- interrupts : Should contain FTM 0 interrupt.
+- big-endian: One boolean property, the big endian mode will be in use if it is
+ present, or the little endian mode will be in use for all the device registers.
+
+Example:
+ftm0: ftm0@29d0000 {
+ compatible = "fsl,ftm-alarm";
+ reg = <0x0 0x29d0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+ big-endian;
+ status = "disabled";
+};
--
2.1.0.27.g96db324
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