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Message-Id: <1461343238-29274-8-git-send-email-fcooper@ti.com>
Date: Fri, 22 Apr 2016 11:40:38 -0500
From: Franklin S Cooper Jr <fcooper@...com>
To: thierry.reding@...il.com, tony@...mide.com, paul@...an.com,
t-kristo@...com, linux-pwm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
robh+dt@...nel.org, devicetree@...r.kernel.org, vigneshr@...com,
nsekhar@...com
Cc: Franklin S Cooper Jr <fcooper@...com>
Subject: [PATCH v6 7/7] ARM: dts: DRA7: Add dt nodes for PWMSS
From: Vignesh R <vigneshr@...com>
Add PWMSS device tree nodes for DRA7 SoC family and add documentation
for dt bindings.
Signed-off-by: Vignesh R <vigneshr@...com>
[fcooper@...com: Add eCAP and use updated bindings for PWMSS and ePWM]
Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
---
.../devicetree/bindings/pwm/pwm-tiecap.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tipwmss.txt | 15 +++-
arch/arm/boot/dts/dra7.dtsi | 90 ++++++++++++++++++++++
4 files changed, 122 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index 39277b6..2e1c1f1 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Must be "ti,<soc>-ecap".
for am33xx - compatible = "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.
@@ -28,3 +29,11 @@ ecap0: ecap@0 { /* ECAP on da850 */
#pwm-cells = <3>;
reg = <0x306000 0x80>;
};
+
+ecap0: ecap@...3e100 {
+ 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 ac1eae6..7eaae2a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Must be "ti,<soc>-ehrpwm".
for am33xx - compatible = "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.
@@ -28,3 +29,11 @@ ehrpwm0: pwm@...000 { /* EHRPWM on da850 */
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
};
+
+ehrpwm0: pwm@...3e200 { /* 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 f7eae77..29945ed 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -1,7 +1,9 @@
TI SOC based PWM Subsystem
Required properties:
-- compatible: Must be "ti,am33xx-pwmss";
+- compatible: Must be "ti,<soc>-pwmss".
+ for am33xx - compatible = "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.
Should set to 1.
@@ -29,3 +31,14 @@ pwmss0: pwmss@...00000 {
/* child nodes go here */
};
+
+epwmss0: epwmss@...3e000 { /* On 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@...3e000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x4843e000 0x30>;
+ ti,hwmods = "epwmss0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm0: pwm@...3e200 {
+ 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@...3e100 {
+ 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@...40000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48440000 0x30>;
+ ti,hwmods = "epwmss1";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm1: pwm@...40200 {
+ 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@...40100 {
+ 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@...42000 {
+ compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48442000 0x30>;
+ ti,hwmods = "epwmss2";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges;
+
+ ehrpwm2: pwm@...42200 {
+ 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@...42100 {
+ 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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