Use the DWC2 device driver with DM_USB_GADGET support and cleanup the USB support in STM32MP1 board.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 3 +- arch/arm/dts/stm32mp157a-dk1.dts | 16 ++- arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi | 1 + arch/arm/dts/stm32mp157c.dtsi | 2 +- board/st/stm32mp1/stm32mp1.c | 165 +++---------------------------- configs/stm32mp15_basic_defconfig | 1 + configs/stm32mp15_trusted_defconfig | 1 + 7 files changed, 32 insertions(+), 157 deletions(-)
diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi index af7acfa..7e2c5d0 100644 --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi @@ -11,6 +11,7 @@ aliases { i2c3 = &i2c4; mmc0 = &sdmmc1; + usb0 = &usbotg_hs; }; config { u-boot,boot-led = "heartbeat"; @@ -190,7 +191,7 @@ };
&usbotg_hs { - usb1600; + force-b-session-valid; hnp-srp-disable; };
diff --git a/arch/arm/dts/stm32mp157a-dk1.dts b/arch/arm/dts/stm32mp157a-dk1.dts index 0882765..b8ef820 100644 --- a/arch/arm/dts/stm32mp157a-dk1.dts +++ b/arch/arm/dts/stm32mp157a-dk1.dts @@ -249,11 +249,25 @@ status = "okay"; };
+&usbotg_hs { + dr_mode = "peripheral"; + phys = <&usbphyc_port1 0>; + phy-names = "usb2-phy"; + status = "okay"; +}; + &usbphyc { - vdd3v3-supply = <&vdd_usb>; status = "okay"; };
+&usbphyc_port0 { + phy-supply = <&vdd_usb>; +}; + +&usbphyc_port1 { + phy-supply = <&vdd_usb>; +}; + &vrefbuf { regulator-min-microvolt = <2500000>; regulator-max-microvolt = <2500000>; diff --git a/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi index 6a18d03..6025b64 100644 --- a/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi +++ b/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi @@ -12,6 +12,7 @@ i2c4 = &i2c5; pinctrl2 = &stmfx_pinctrl; spi0 = &qspi; + usb0 = &usbotg_hs; }; };
diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi index f1375a9..82177b5 100644 --- a/arch/arm/dts/stm32mp157c.dtsi +++ b/arch/arm/dts/stm32mp157c.dtsi @@ -825,7 +825,7 @@ };
usbotg_hs: usb-otg@49000000 { - compatible = "snps,dwc2"; + compatible = "st,stm32mp1-hsotg", "snps,dwc2"; reg = <0x49000000 0x10000>; clocks = <&rcc USBO_K>; clock-names = "otg"; diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 9a68047..58b6d78 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -7,18 +7,17 @@ #include <config.h> #include <clk.h> #include <dm.h> +#include <g_dnl.h> #include <generic-phy.h> #include <led.h> #include <misc.h> #include <phy.h> #include <reset.h> #include <syscon.h> -#include <usb.h> #include <asm/io.h> #include <asm/gpio.h> #include <asm/arch/stm32.h> #include <power/regulator.h> -#include <usb/dwc2_udc.h>
/* SYSCFG registers */ #define SYSCFG_BOOTR 0x00 @@ -58,11 +57,6 @@ */ DECLARE_GLOBAL_DATA_PTR;
-#define STM32MP_GUSBCFG 0x40002407 - -#define STM32MP_GGPIO 0x38 -#define STM32MP_GGPIO_VBUS_SENSING BIT(21) - #define USB_WARNING_LOW_THRESHOLD_UV 660000 #define USB_START_LOW_THRESHOLD_UV 1230000 #define USB_START_HIGH_THRESHOLD_UV 2100000 @@ -155,149 +149,22 @@ static void board_key_check(void) #endif }
-static struct dwc2_plat_otg_data stm32mp_otg_data = { - .usb_gusbcfg = STM32MP_GUSBCFG, -}; +#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
-static struct reset_ctl usbotg_reset; - -int board_usb_init(int index, enum usb_init_type init) +int g_dnl_board_usb_cable_connected(void) { - 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; + struct udevice *dwc2_udc_otg; 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); + ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC, + DM_GET_DRIVER(dwc2_udc_otg), + &dwc2_udc_otg); + if (!ret) + debug("dwc2_udc_otg init failed\n");
- return ret; + return dwc2_udc_B_session_valid(dwc2_udc_otg); } +#endif /* CONFIG_USB_GADGET */
static int get_led(struct udevice **dev, char *led_string) { @@ -438,16 +305,6 @@ static int board_check_usb_power(void) return 0; }
-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; -} - static void sysconf_init(void) { #ifndef CONFIG_STM32MP1_TRUSTED diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig index b6d994c..ff95dcd 100644 --- a/configs/stm32mp15_basic_defconfig +++ b/configs/stm32mp15_basic_defconfig @@ -71,6 +71,7 @@ CONFIG_SERIAL_RX_BUFFER=y CONFIG_STM32_SERIAL=y CONFIG_USB=y CONFIG_DM_USB=y +CONFIG_DM_USB_GADGET=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_GADGET=y diff --git a/configs/stm32mp15_trusted_defconfig b/configs/stm32mp15_trusted_defconfig index ed2a2e6..f82b770 100644 --- a/configs/stm32mp15_trusted_defconfig +++ b/configs/stm32mp15_trusted_defconfig @@ -60,6 +60,7 @@ CONFIG_SERIAL_RX_BUFFER=y CONFIG_STM32_SERIAL=y CONFIG_USB=y CONFIG_DM_USB=y +CONFIG_DM_USB_GADGET=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_GADGET=y