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Date: Tue, 21 Jun 2016 23:25:48 -0300
From: Bruno Herrera <bruherrera@...il.com>
To: robh+dt@...nel.org
Cc: pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
linux@...linux.org.uk, mcoquelin.stm32@...il.com,
johnyoun@...opsys.com, gregkh@...uxfoundation.org,
balbi@...nel.org, zhangfei.gao@...aro.org, a.seppala@...il.com,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org
Subject: [PATCH 2/3] ARM: dts: STM32 Add USB FS host mode support
Signed-off-by: Bruno Herrera <bruherrera@...il.com>
---
arch/arm/boot/dts/stm32f429-disco.dts | 30 ++++++++++++++++++++++++++++++
arch/arm/boot/dts/stm32f429.dtsi | 33 ++++++++++++++++++++++++++++++++-
arch/arm/boot/dts/stm32f469-disco.dts | 30 ++++++++++++++++++++++++++++++
3 files changed, 92 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 0140807..8e0114b 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -75,6 +75,16 @@
linux,default-trigger = "heartbeat";
};
};
+
+ /* 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 {
@@ -86,3 +96,23 @@
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 35df462..cb33aa2 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -176,7 +176,7 @@
reg = <0x40013800 0x400>;
};
- pin-controller {
+ pinctrl: pin-controller {
#address-cells = <1>;
#size-cells = <1>;
compatible = "st,stm32f429-pinctrl";
@@ -284,6 +284,28 @@
};
};
+ 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>,
@@ -388,6 +410,15 @@
status = "disabled";
};
+ usbotg_fs: usb@...00000 {
+ compatible = "st,stm32-fsotg", "snps,dwc2";
+ reg = <0x50000000 0x40000>;
+ interrupts = <67>;
+ clocks = <&rcc 0 39>;
+ clock-names = "otg";
+ status = "disabled";
+ };
+
rng: rng@...60800 {
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 83ee90d..46e5279 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -64,6 +64,17 @@
aliases {
serial0 = &usart3;
};
+
+ /* 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;
+ };
};
&clk_hse {
@@ -73,3 +84,22 @@
&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;
+ };
+ };
+ };
+};
--
2.7.4 (Apple Git-66)
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