Add General Purpose Timers and it sub-nodes into DT for stm32f4.
Define and enable pwm1 and pwm3 for stm32f469 discovery board
version 4:
- remove unwanted indexing in pwm@ and timer@ node name
- use "reg" instead of additional parameters to set timer
configuration
version 3:
- use "st,stm32-timer-trigger" in DT
version 2:
- use parameters to describe hardware capabilities
- do not use references for pwm and iio timer subnodes
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
---
arch/arm/boot/dts/stm32f429.dtsi | 276 +++++++++++++++++++++++++++++++++-
arch/arm/boot/dts/stm32f469-disco.dts | 28 ++++
2 files changed, 303 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index bca491d..57dc0db 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -48,7 +48,6 @@
#include "skeleton.dtsi"
#include "armv7-m.dtsi"
#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
-
/ {
clocks {
clk_hse: clk-hse {
@@ -355,6 +354,21 @@
slew-rate = <2>;
};
};
+
+ pwm1_pins: pwm@1 {
+ pins {
+ pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
+ <STM32F429_PB13_FUNC_TIM1_CH1N>,
+ <STM32F429_PB12_FUNC_TIM1_BKIN>;
+ };
+ };
+
+ pwm3_pins: pwm@3 {
+ pins {
+ pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
+ <STM32F429_PB5_FUNC_TIM3_CH2>;
+ };
+ };
};
rcc: rcc@40023810 {
@@ -426,6 +440,266 @@
interrupts = <80>;
clocks = <&rcc 0 38>;
};
+
+ gptimer1: gptimer@40010000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40010000 0x400>;
+ clocks = <&rcc 0 160>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <0>;
+ status = "disabled";
+ };
+ };
+
+ gptimer2: gptimer@40000000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40000000 0x400>;
+ clocks = <&rcc 0 128>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <1>;
+ status = "disabled";
+ };
+ };
+
+ gptimer3: gptimer@40000400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40000400 0x400>;
+ clocks = <&rcc 0 129>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <2>;
+ status = "disabled";
+ };
+ };
+
+ gptimer4: gptimer@40000800 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40000800 0x400>;
+ clocks = <&rcc 0 130>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <3>;
+ status = "disabled";
+ };
+ };
+
+ gptimer5: gptimer@40000C00 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40000C00 0x400>;
+ clocks = <&rcc 0 131>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <4>;
+ status = "disabled";
+ };
+ };
+
+ gptimer6: gptimer@40001000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40001000 0x400>;
+ clocks = <&rcc 0 132>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <5>;
+ status = "disabled";
+ };
+ };
+
+ gptimer7: gptimer@40001400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40001400 0x400>;
+ clocks = <&rcc 0 133>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <6>;
+ status = "disabled";
+ };
+ };
+
+ gptimer8: gptimer@40010400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40010400 0x400>;
+ clocks = <&rcc 0 161>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <7>;
+ status = "disabled";
+ };
+ };
+
+ gptimer9: gptimer@40014000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40014000 0x400>;
+ clocks = <&rcc 0 176>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <8>;
+ status = "disabled";
+ };
+ };
+
+ gptimer10: gptimer@40014400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40014400 0x400>;
+ clocks = <&rcc 0 177>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+ };
+
+ gptimer11: gptimer@40014800 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40014800 0x400>;
+ clocks = <&rcc 0 178>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+ };
+
+ gptimer12: gptimer@40001800 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40001800 0x400>;
+ clocks = <&rcc 0 134>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+
+ timer@0 {
+ compatible = "st,stm32-timer-trigger";
+ reg = <9>;
+ status = "disabled";
+ };
+ };
+
+ gptimer13: gptimer@40001C00 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40001C00 0x400>;
+ clocks = <&rcc 0 135>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+ };
+
+ gptimer14: gptimer@40002000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-gptimer";
+ reg = <0x40002000 0x400>;
+ clocks = <&rcc 0 136>;
+ clock-names = "clk_int";
+ status = "disabled";
+
+ pwm@0 {
+ compatible = "st,stm32-pwm";
+ status = "disabled";
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 8a163d7..ae9b8f2 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -81,3 +81,31 @@
&usart3 {
status = "okay";
};
+
+&gptimer1 {
+ status = "okay";
+
+ pwm@0 {
+ pinctrl-0 = <&pwm1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+
+ timer@0 {
+ status = "okay";
+ };
+};
+
+&gptimer3 {
+ status = "okay";
+
+ pwm@0 {
+ pinctrl-0 = <&pwm3_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+
+ timer@0 {
+ status = "okay";
+ };
+};
--
1.9.1
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