[PATCH 2/3] ARM: dts: STM32 Add USB FS host mode support
From: Bruno Herrera <hidden>
Date: 2016-06-22 02:26:49
Also in:
linux-arm-kernel, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Bruno Herrera <redacted> --- 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@50000000 { + compatible = "st,stm32-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 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)