[U-Boot] [PATCH v1 0/4] Add USB EHCI and gadget support for STM32MP1

[U-Boot] [PATCH v1 0/4] Add USB EHCI and gadget support for STM32MP1

[Patrice Chotard]

This series :
  - Adds DT nodes to add usb gadget support for stm32mp157-ev1 board
  - Adds DT nodes to add EHCI support for stm32mp157-ev1 board
  - Enables all USB relative flags needed for USB EHCI, DWC2 gadget and
    mass storage support
  - Update stm32mp1 board by populating board_usb_init() to initialize
    USB gadget driver


Patrice Chotard (4):
  ARM: dts: stm32mp1: Add usb gadget support for stm32mp157c-ev1 board
  ARM: dts: stm32mp1: Add EHCI support for stm32mp157c-ev1 board
  configs: stm32mp15: Enable USB relative flags
  board: st: stm32mp1: Add usb gadget support

 arch/arm/dts/stm32mp157-pinctrl.dtsi     |   6 ++
 arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi |   5 +
 arch/arm/dts/stm32mp157c-ev1.dts         |  15 +++
 arch/arm/dts/stm32mp157c.dtsi            |  36 +++++++
 board/st/stm32mp1/stm32mp1.c             | 168 +++++++++++++++++++++++++++++++
 configs/stm32mp15_basic_defconfig        |  16 +++
 6 files changed, 246 insertions(+)

-- 
1.9.1

[U-Boot] [PATCH v1 1/4] ARM: dts: stm32mp1: Add usb gadget support for stm32mp157c-ev1 board

[Patrice Chotard]

Add DT nodes to enable DWC2 gadget support

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---

 arch/arm/dts/stm32mp157-pinctrl.dtsi     |  6 ++++++
 arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi |  5 +++++
 arch/arm/dts/stm32mp157c-ev1.dts         |  8 +++++++
 arch/arm/dts/stm32mp157c.dtsi            | 36 ++++++++++++++++++++++++++++++++
 4 files changed, 55 insertions(+)

diff --git a/arch/arm/dts/stm32mp157-pinctrl.dtsi b/arch/arm/dts/stm32mp157-pinctrl.dtsi
index c69c397964af..85da5926551c 100644
--- a/arch/arm/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/dts/stm32mp157-pinctrl.dtsi
@@ -321,6 +321,12 @@
 					bias-disable;
 				};
 			};
+
+			usbotg_hs_pins_a: usbotg_hs-0 {
+				pins {
+					pinmux = <STM32_PINMUX('A', 10, ANALOG)>; /* OTG_ID */
+				};
+			};
 		};
 
 		pinctrl_z: pin-controller-z at 54004000 {
diff --git a/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi
index 2f4de3a066c0..30b173478c6c 100644
--- a/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi
@@ -25,6 +25,10 @@
 	regulator-always-on;
 };
 
+&usbotg_hs {
+	g-tx-fifo-size = <576>;
+};
+
 /* SPL part **************************************/
 &qspi {
 	u-boot,dm-spl;
@@ -60,3 +64,4 @@
 &flash0 {
 	u-boot,dm-spl;
 };
+
diff --git a/arch/arm/dts/stm32mp157c-ev1.dts b/arch/arm/dts/stm32mp157c-ev1.dts
index d6934f74e076..e2128af93fe5 100644
--- a/arch/arm/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/dts/stm32mp157c-ev1.dts
@@ -96,6 +96,14 @@
 	};
 };
 
+&usbotg_hs {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usbotg_hs_pins_a>;
+	phys = <&usbphyc_port1 0>;
+	phy-names = "usb2-phy";
+	status = "okay";
+};
+
 &usbphyc {
 	status = "okay";
 };
diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi
index 8df9f09dc6c3..44190394e7af 100644
--- a/arch/arm/dts/stm32mp157c.dtsi
+++ b/arch/arm/dts/stm32mp157c.dtsi
@@ -106,6 +106,26 @@
 		};
 	};
 
+	pm_domain {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "st,stm32mp157c-pd";
+
+		pd_core_ret: core-ret-power-domain at 1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			#power-domain-cells = <0>;
+			label = "CORE-RETENTION";
+
+			pd_core: core-power-domain at 2 {
+				reg = <2>;
+				#power-domain-cells = <0>;
+				label = "CORE";
+			};
+		};
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -622,6 +642,22 @@
 			status = "disabled";
 		};
 
+		usbotg_hs: usb-otg at 49000000 {
+			compatible = "st,stm32mp1-hsotg", "snps,dwc2";
+			reg = <0x49000000 0x10000>;
+			clocks = <&rcc USBO_K>;
+			clock-names = "otg";
+			resets = <&rcc USBO_R>;
+			reset-names = "dwc2";
+			interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+			g-rx-fifo-size = <256>;
+			g-np-tx-fifo-size = <32>;
+			g-tx-fifo-size = <128 128 64 64 64 64 32 32>;
+			dr_mode = "otg";
+			power-domains = <&pd_core>;
+			status = "disabled";
+		};
+
 		rcc: rcc at 50000000 {
 			compatible = "st,stm32mp1-rcc", "syscon";
 			reg = <0x50000000 0x1000>;
-- 
1.9.1

[U-Boot] [PATCH v1 2/4] ARM: dts: stm32mp1: Add EHCI support for stm32mp157c-ev1 board

[Patrice Chotard]

Add DT nodes to enable EHCI support

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---

 arch/arm/dts/stm32mp157c-ev1.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/stm32mp157c-ev1.dts b/arch/arm/dts/stm32mp157c-ev1.dts
index e2128af93fe5..902a42bee290 100644
--- a/arch/arm/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/dts/stm32mp157c-ev1.dts
@@ -96,6 +96,13 @@
 	};
 };
 
+&usbh_ehci {
+	phys = <&usbphyc_port0>;
+	phy-names = "usb";
+	vbus-supply = <&vbus_sw>;
+	status = "okay";
+};
+
 &usbotg_hs {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usbotg_hs_pins_a>;
-- 
1.9.1

[U-Boot] [PATCH v1 3/4] configs: stm32mp15: Enable USB relative flags

[Patrice Chotard]

Enable config USB relative flags in order to enable USB
EHCI, DWC2 gadget, download and mass_storage support.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---

 configs/stm32mp15_basic_defconfig | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig
index c72a440dff1d..e955a4279c33 100644
--- a/configs/stm32mp15_basic_defconfig
+++ b/configs/stm32mp15_basic_defconfig
@@ -23,6 +23,8 @@ CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_EXT4_WRITE=y
@@ -31,6 +33,8 @@ CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_STM32F7=y
 CONFIG_DM_MMC=y
 CONFIG_STM32_SDMMC2=y
+CONFIG_PHY=y
+CONFIG_PHY_STM32_USBPHYC=y
 # CONFIG_PINCTRL_FULL is not set
 # CONFIG_SPL_PINCTRL_FULL is not set
 CONFIG_DM_PMIC=y
@@ -42,3 +46,15 @@ CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_DM_REGULATOR_STM32_VREFBUF=y
 CONFIG_DM_REGULATOR_STPMU1=y
 CONFIG_STM32_SERIAL=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_DWC2=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="STMicroelectronics"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0483
+CONFIG_USB_GADGET_PRODUCT_NUM=0x5720
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DOWNLOAD=y
-- 
1.9.1

[U-Boot] [PATCH v1 4/4] board: st: stm32mp1: Add usb gadget support

[Patrice Chotard]

Enable USB gadget support using DWC2 driver
Populate board_usb_init() to initialize clocks,
phy, reset and data needed for DWC2 IP.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---

 board/st/stm32mp1/stm32mp1.c | 168 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 168 insertions(+)

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index cc39fa6df9c3..a36ea228c7f4 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -4,13 +4,181 @@
  */
 #include <config.h>
 #include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <phy.h>
+#include <reset.h>
+#include <usb.h>
 #include <asm/arch/stm32.h>
+#include <asm/io.h>
+#include <power/regulator.h>
+#include <usb/dwc2_udc.h>
 
 /*
  * Get a global data pointer
  */
 DECLARE_GLOBAL_DATA_PTR;
 
+#define STM32MP_GUSBCFG 0x40002407
+
+#define STM32MP_GGPIO 0x38
+#define STM32MP_GGPIO_VBUS_SENSING BIT(21)
+
+static struct dwc2_plat_otg_data stm32mp_otg_data = {
+	.usb_gusbcfg = STM32MP_GUSBCFG,
+};
+
+static struct reset_ctl usbotg_reset;
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	struct fdtdec_phandle_args args;
+	struct udevice *dev;
+	const void *blob = gd->fdt_blob;
+	struct clk clk;
+	struct phy phy;
+	int node;
+	int phy_provider;
+	int ret;
+
+	/* find the usb otg node */
+	node = fdt_node_offset_by_compatible(blob, -1, "snps,dwc2");
+	if (node < 0) {
+		debug("Not found usb_otg device\n");
+		return -ENODEV;
+	}
+
+	if (!fdtdec_get_is_enabled(blob, node)) {
+		debug("stm32 usbotg is disabled in the device tree\n");
+		return -ENODEV;
+	}
+
+	/* Enable clock */
+	ret = fdtdec_parse_phandle_with_args(blob, node, "clocks",
+					     "#clock-cells", 0, 0, &args);
+	if (ret) {
+		debug("usbotg has no clocks defined in the device tree\n");
+		return ret;
+	}
+
+	ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &dev);
+	if (ret)
+		return ret;
+
+	if (args.args_count != 1) {
+		debug("Can't find clock ID in the device tree\n");
+		return -ENODATA;
+	}
+
+	clk.dev = dev;
+	clk.id = args.args[0];
+
+	ret = clk_enable(&clk);
+	if (ret) {
+		debug("Failed to enable usbotg clock\n");
+		return ret;
+	}
+
+	/* Reset */
+	ret = fdtdec_parse_phandle_with_args(blob, node, "resets",
+					     "#reset-cells", 0, 0, &args);
+	if (ret) {
+		debug("usbotg has no resets defined in the device tree\n");
+		goto clk_err;
+	}
+
+	ret = uclass_get_device_by_of_offset(UCLASS_RESET, args.node, &dev);
+	if (ret || args.args_count != 1)
+		goto clk_err;
+
+	usbotg_reset.dev = dev;
+	usbotg_reset.id = args.args[0];
+
+	reset_assert(&usbotg_reset);
+	udelay(2);
+	reset_deassert(&usbotg_reset);
+
+	/* Get USB PHY */
+	ret = fdtdec_parse_phandle_with_args(blob, node, "phys",
+					     "#phy-cells", 0, 0, &args);
+	if (!ret) {
+		phy_provider = fdt_parent_offset(blob, args.node);
+		ret = uclass_get_device_by_of_offset(UCLASS_PHY,
+						     phy_provider, &dev);
+		if (ret)
+			goto clk_err;
+
+		phy.dev = dev;
+		phy.id = fdtdec_get_uint(blob, args.node, "reg", -1);
+
+		ret = generic_phy_power_on(&phy);
+		if (ret) {
+			debug("unable to power on the phy\n");
+			goto clk_err;
+		}
+
+		ret = generic_phy_init(&phy);
+		if (ret) {
+			debug("failed to init usb phy\n");
+			goto phy_power_err;
+		}
+	}
+
+	/* Parse and store data needed for gadget */
+	stm32mp_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
+	if (stm32mp_otg_data.regs_otg == FDT_ADDR_T_NONE) {
+		debug("usbotg: can't get base address\n");
+		ret = -ENODATA;
+		goto phy_init_err;
+	}
+
+	stm32mp_otg_data.rx_fifo_sz = fdtdec_get_int(blob, node,
+						     "g-rx-fifo-size", 0);
+	stm32mp_otg_data.np_tx_fifo_sz = fdtdec_get_int(blob, node,
+							"g-np-tx-fifo-size", 0);
+	stm32mp_otg_data.tx_fifo_sz = fdtdec_get_int(blob, node,
+						     "g-tx-fifo-size", 0);
+	/* Enable voltage level detector */
+	if (!(fdtdec_parse_phandle_with_args(blob, node, "usb33d-supply",
+					     NULL, 0, 0, &args))) {
+		if (!uclass_get_device_by_of_offset(UCLASS_REGULATOR,
+						    args.node, &dev)) {
+			ret = regulator_set_enable(dev, true);
+			if (ret) {
+				debug("Failed to enable usb33d\n");
+				goto phy_init_err;
+			}
+		}
+	}
+		/* Enable vbus sensing */
+	setbits_le32(stm32mp_otg_data.regs_otg + STM32MP_GGPIO,
+		     STM32MP_GGPIO_VBUS_SENSING);
+
+	return dwc2_udc_probe(&stm32mp_otg_data);
+
+phy_init_err:
+	generic_phy_exit(&phy);
+
+phy_power_err:
+	generic_phy_power_off(&phy);
+
+clk_err:
+	clk_disable(&clk);
+
+	return ret;
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	/* Reset usbotg */
+	reset_assert(&usbotg_reset);
+	udelay(2);
+	reset_deassert(&usbotg_reset);
+
+	return 0;
+}
+
 int board_late_init(void)
 {
 	return 0;
-- 
1.9.1

[U-Boot] [PATCH v1 0/4] Add USB EHCI and gadget support for STM32MP1

[Patrice CHOTARD]

Hi

It's a gentle reminder to not forget thise series for U-boot 2018.11
release.

Thanks

Patrice

On 08/10/2018 05:12 PM, Patrice Chotard wrote:
> 
> This series :
>   - Adds DT nodes to add usb gadget support for stm32mp157-ev1 board
>   - Adds DT nodes to add EHCI support for stm32mp157-ev1 board
>   - Enables all USB relative flags needed for USB EHCI, DWC2 gadget and
>     mass storage support
>   - Update stm32mp1 board by populating board_usb_init() to initialize
>     USB gadget driver
> 
> 
> Patrice Chotard (4):
>   ARM: dts: stm32mp1: Add usb gadget support for stm32mp157c-ev1 board
>   ARM: dts: stm32mp1: Add EHCI support for stm32mp157c-ev1 board
>   configs: stm32mp15: Enable USB relative flags
>   board: st: stm32mp1: Add usb gadget support
> 
>  arch/arm/dts/stm32mp157-pinctrl.dtsi     |   6 ++
>  arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi |   5 +
>  arch/arm/dts/stm32mp157c-ev1.dts         |  15 +++
>  arch/arm/dts/stm32mp157c.dtsi            |  36 +++++++
>  board/st/stm32mp1/stm32mp1.c             | 168 +++++++++++++++++++++++++++++++
>  configs/stm32mp15_basic_defconfig        |  16 +++
>  6 files changed, 246 insertions(+)
> 

[U-Boot] [U-Boot, v1, 1/4] ARM: dts: stm32mp1: Add usb gadget support for stm32mp157c-ev1 board

[Tom Rini]

On Fri, Aug 10, 2018 at 05:12:11PM +0200, Patrice Chotard wrote:

> Add DT nodes to enable DWC2 gadget support
> 
> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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[U-Boot] [U-Boot, v1, 2/4] ARM: dts: stm32mp1: Add EHCI support for stm32mp157c-ev1 board

[Tom Rini]

On Fri, Aug 10, 2018 at 05:12:12PM +0200, Patrice Chotard wrote:

> Add DT nodes to enable EHCI support
> 
> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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[U-Boot] [U-Boot, v1, 3/4] configs: stm32mp15: Enable USB relative flags

[Tom Rini]

On Fri, Aug 10, 2018 at 05:12:13PM +0200, Patrice Chotard wrote:

> Enable config USB relative flags in order to enable USB
> EHCI, DWC2 gadget, download and mass_storage support.
> 
> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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[U-Boot] [U-Boot, v1, 4/4] board: st: stm32mp1: Add usb gadget support

[Tom Rini]

On Fri, Aug 10, 2018 at 05:12:14PM +0200, Patrice Chotard wrote:

> Enable USB gadget support using DWC2 driver
> Populate board_usb_init() to initialize clocks,
> phy, reset and data needed for DWC2 IP.
> 
> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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