ARM: dts: OMAP: Add counter-32k nodes

Adds the counter-32k timers nodes present in OMAP2/3/4 devices and
device-tree binding documentation for OMAP counter-32k.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>

5 files changed, 39 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/omap/counter.txt b/Documentation/devicetree/bindings/arm/omap/counter.txt
new file mode 100644
index 000000000000..5bd8aa091315
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/counter.txt
@@ -0,0 +1,15 @@
+OMAP Counter-32K bindings
+
+Required properties:
+- compatible:   Must be "ti,omap-counter32k" for OMAP controllers
+- reg:          Contains timer register address range (base address and length)
+- ti,hwmods:    Name of the hwmod associated to the counter, which is typically
+                "counter_32k"
+
+Example:
+
+counter32k: counter@4a304000 {
+        compatible = "ti,omap-counter32k";
+        reg = <0x4a304000 0x20>;
+        ti,hwmods = "counter_32k";
+};
diff --git a/arch/arm/boot/dts/omap2420.dtsi b/arch/arm/boot/dts/omap2420.dtsi
index af5ee262d0cf..af6560908905 100644
--- a/arch/arm/boot/dts/omap2420.dtsi
+++ b/arch/arm/boot/dts/omap2420.dtsi
@@ -14,6 +14,12 @@
         compatible = "ti,omap2420", "ti,omap2";
 
         ocp {
+                counter32k: counter@48004000 {
+                        compatible = "ti,omap-counter32k";
+                        reg = <0x48004000 0x20>;
+                        ti,hwmods = "counter_32k";
+                };
+
                 omap2420_pmx: pinmux@48000030 {
                         compatible = "ti,omap2420-padconf", "pinctrl-single";
                         reg = <0x48000030 0x0113>;
diff --git a/arch/arm/boot/dts/omap2430.dtsi b/arch/arm/boot/dts/omap2430.dtsi
index 688729840f14..c3924457c9b6 100644
--- a/arch/arm/boot/dts/omap2430.dtsi
+++ b/arch/arm/boot/dts/omap2430.dtsi
@@ -14,6 +14,12 @@
         compatible = "ti,omap2430", "ti,omap2";
 
         ocp {
+                counter32k: counter@49020000 {
+                        compatible = "ti,omap-counter32k";
+                        reg = <0x49020000 0x20>;
+                        ti,hwmods = "counter_32k";
+                };
+
                 omap2430_pmx: pinmux@49002030 {
                         compatible = "ti,omap2430-padconf", "pinctrl-single";
                         reg = <0x49002030 0x0154>;
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index af9b1822ff84..1acc26148ffc 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -61,6 +61,12 @@
                 ranges;
                 ti,hwmods = "l3_main";
 
+                counter32k: counter@48320000 {
+                        compatible = "ti,omap-counter32k";
+                        reg = <0x48320000 0x20>;
+                        ti,hwmods = "counter_32k";
+                };
+
                 intc: interrupt-controller@48200000 {
                         compatible = "ti,omap2-intc";
                         interrupt-controller;
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index d3a82e0c3804..23ee1498c98c 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -95,6 +95,12 @@
                 ranges;
                 ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
 
+                counter32k: counter@4a304000 {
+                        compatible = "ti,omap-counter32k";
+                        reg = <0x4a304000 0x20>;
+                        ti,hwmods = "counter_32k";
+                };
+
                 omap4_pmx_core: pinmux@4a100040 {
                         compatible = "ti,omap4-padconf", "pinctrl-single";
                         reg = <0x4a100040 0x0196>;