This patch adds the USB pins and nodes for USB HS/FS cores working at FS speed,
using embedded PHY.
Signed-off-by: Bruno Herrera <bruherrera@xxxxxxxxx>
---
arch/arm/boot/dts/stm32f429-disco.dts | 30 ++++++++++++++++++++++++++++++
arch/arm/boot/dts/stm32f429.dtsi | 35 ++++++++++++++++++++++++++++++++++-
arch/arm/boot/dts/stm32f469-disco.dts | 30 ++++++++++++++++++++++++++++++
3 files changed, 94 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 7d0415e..374c5ed 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -88,6 +88,16 @@
gpios = <&gpioa 0 0>;
};
};
+
+ /* This turns on vbus for otg for host mode (dwc2) */
+ vcc5v_otg: vcc5v-otg-regulator {
+ compatible = "regulator-fixed";
+ gpio = <&gpioc 4 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usbotg_pwren_h>;
+ regulator-name = "vcc5_host1";
+ regulator-always-on;
+ };
};
&clk_hse {
@@ -99,3 +109,23 @@
pinctrl-names = "default";
status = "okay";
};
+
+&usbotg_hs {
+ compatible = "st,stm32-fsotg", "snps,dwc2";
+ dr_mode = "host";
+ pinctrl-0 = <&usbotg_fs_pins_b>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&pinctrl {
+ usb-host {
+ usbotg_pwren_h: usbotg-pwren-h {
+ pins {
+ pinmux = <STM32F429_PC4_FUNC_GPIO>;
+ bias-disable;
+ drive-push-pull;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index e4dae0e..bc07aa8 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -206,7 +206,7 @@
reg = <0x40007000 0x400>;
};
- pin-controller {
+ pinctrl: pin-controller {
#address-cells = <1>;
#size-cells = <1>;
compatible = "st,stm32f429-pinctrl";
@@ -316,6 +316,30 @@
};
};
+ usbotg_fs_pins_a: usbotg_fs@0 {
+ pins {
+ pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
+ <STM32F429_PA11_FUNC_OTG_FS_DM>,
+ <STM32F429_PA12_FUNC_OTG_FS_DP>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <2>;
+ };
+ };
+
+ usbotg_fs_pins_b: usbotg_fs@1 {
+ pins {
+ pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
+ <STM32F429_PB14_FUNC_OTG_HS_DM>,
+ <STM32F429_PB15_FUNC_OTG_HS_DP>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <2>;
+ };
+ };
+
+
+
usbotg_hs_pins_a: usbotg_hs@0 {
pins {
pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
@@ -420,6 +444,15 @@
status = "disabled";
};
+ usbotg_fs: usb@50000000 {
+ compatible = "st,stm32f4xx-fsotg", "snps,dwc2";
+ reg = <0x50000000 0x40000>;
+ interrupts = <67>;
+ clocks = <&rcc 0 39>;
+ clock-names = "otg";
+ status = "disabled";
+ };
+
rng: rng@50060800 {
compatible = "st,stm32-rng";
reg = <0x50060800 0x400>;
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 8877c00..8ae6763 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -68,6 +68,17 @@
soc {
dma-ranges = <0xc0000000 0x0 0x10000000>;
};
+
+ /* This turns on vbus for otg for host mode (dwc2) */
+ vcc5v_otg: vcc5v-otg-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpiob 2 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usbotg_pwren_h>;
+ regulator-name = "vcc5_host1";
+ regulator-always-on;
+ };
};
&rcc {
@@ -81,3 +92,22 @@
&usart3 {
status = "okay";
};
+
+&usbotg_fs {
+ dr_mode = "host";
+ pinctrl-0 = <&usbotg_fs_pins_a>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&pinctrl {
+ usb-host {
+ usbotg_pwren_h: usbotg-pwren-h {
+ pins {
+ pinmux = <STM32F429_PB2_FUNC_GPIO>;
+ bias-disable;
+ drive-push-pull;
+ };
+ };
+ };
+};
--
2.10.1 (Apple Git-78)
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