From: Vignesh R <vigneshr@xxxxxx>
Add PWMSS device tree nodes for DRA7 SoC family and add documentation
for dt bindings.
Signed-off-by: Vignesh R <vigneshr@xxxxxx>
[fcooper@xxxxxx: Add eCAP and use updated bindings for PWMSS and ePWM]
Signed-off-by: Franklin S Cooper Jr <fcooper@xxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
.../devicetree/bindings/pwm/pwm-tiecap.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tipwmss.txt | 12 +++
arch/arm/boot/dts/dra7.dtsi | 90 ++++++++++++++++++++++
4 files changed, 120 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index 4d4c977..759de05 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -5,6 +5,7 @@ Required properties:
for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
+ for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The PWM channel index ranges from 0 to 4. The only third
cell flag supported by this binding is PWM_POLARITY_INVERTED.
@@ -38,3 +39,11 @@ ecap0: ecap@1f06000 { /* ECAP on da850 */
#pwm-cells = <3>;
reg = <0x306000 0x80>;
};
+
+ecap0: ecap@4843e100 {
+ compatible = "ti,dra746-ecap", "ti,am3352-ecap";
+ #pwm-cells = <3>;
+ reg = <0x4843e100 0x80>;
+ clocks = <&l4_root_clk_div>;
+ clock-names = "fck";
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index c1d6a2a..135132a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
@@ -5,6 +5,7 @@ Required properties:
for am33xx - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
for am4372 - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
+ for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The only third cell flag supported by this binding is
PWM_POLARITY_INVERTED.
@@ -38,3 +39,11 @@ ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
};
+
+ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */
+ compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
+ clock-names = "tbclk", "fck";
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index fd8e87c..1a5d7b7 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Must be "ti,<soc>-pwmss".
for am33xx - compatible = "ti,am33xx-pwmss";
for am4372 - compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+ for dra746 - compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss"
- reg: physical base address and size of the registers map.
- address-cells: Specify the number of u32 entries needed in child nodes.
@@ -46,3 +47,14 @@ epwmss0: epwmss@48300000 { /* PWMSS for am4372 */
/* child nodes go here */
};
+
+epwmss0: epwmss@4843e000 { /* PWMSS for DRA7xx */
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x4843e000 0x30>;
+ ti,hwmods = "epwmss0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ /* child nodes go here */
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index e007401..5a21e46 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1743,6 +1743,96 @@
clock-names = "fck", "sys_clk";
};
};
+
+ epwmss0: epwmss@4843e000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x4843e000 0x30>;
+ ti,hwmods = "epwmss0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm0: pwm@4843e200 {
+ compatible = "ti,dra746-ehrpwm",
+ "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x4843e200 0x80>;
+ clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ ecap0: ecap@4843e100 {
+ compatible = "ti,dra746-ecap",
+ "ti,am3352-ecap";
+ #pwm-cells = <3>;
+ reg = <0x4843e100 0x80>;
+ clocks = <&l4_root_clk_div>;
+ clock-names = "fck";
+ status = "disabled";
+ };
+ };
+
+ epwmss1: epwmss@48440000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48440000 0x30>;
+ ti,hwmods = "epwmss1";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm1: pwm@48440200 {
+ compatible = "ti,dra746-ehrpwm",
+ "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ clocks = <&ehrpwm1_tbclk>, <&l4_root_clk_div>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ ecap1: ecap@48440100 {
+ compatible = "ti,dra746-ecap",
+ "ti,am3352-ecap";
+ #pwm-cells = <3>;
+ reg = <0x48440100 0x80>;
+ clocks = <&l4_root_clk_div>;
+ clock-names = "fck";
+ status = "disabled";
+ };
+ };
+
+ epwmss2: epwmss@48442000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48442000 0x30>;
+ ti,hwmods = "epwmss2";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm2: pwm@48442200 {
+ compatible = "ti,dra746-ehrpwm",
+ "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48442200 0x80>;
+ clocks = <&ehrpwm2_tbclk>, <&l4_root_clk_div>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ ecap2: ecap@48442100 {
+ compatible = "ti,dra746-ecap",
+ "ti,am3352-ecap";
+ #pwm-cells = <3>;
+ reg = <0x48442100 0x80>;
+ clocks = <&l4_root_clk_div>;
+ clock-names = "fck";
+ status = "disabled";
+ };
+ };
};
thermal_zones: thermal-zones {
--
2.7.0
--
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