Add USB support for TI AM62 SK EVM

boards/ti/sk_am62/sk_am62_am6254_a53.dts

@@ -121,3 +121,9 @@
 		ngpios = <24>;
 	};
 };
+
+zephyr_udc0: &main_usb0 {
+	status = "okay";
+	ti,syscon-phy-pll-refclk = <&usb0_phy_ctrl>;
+	ti,vbus-divider;
+};

drivers/usb/udc/CMakeLists.txt

@@ -7,6 +7,7 @@ zephyr_library_sources(udc_common.c)
 zephyr_library_include_directories(${ZEPHYR_BASE}/drivers/usb/common/)
 
 zephyr_library_sources_ifdef(CONFIG_UDC_DWC2 udc_dwc2.c)
+zephyr_library_sources_ifdef(CONFIG_UDC_DWC3 udc_dwc3.c)
 zephyr_library_sources_ifdef(CONFIG_UDC_NRF udc_nrf.c)
 zephyr_library_sources_ifdef(CONFIG_UDC_KINETIS udc_kinetis.c)
 zephyr_library_sources_ifdef(CONFIG_UDC_SKELETON udc_skeleton.c)

drivers/usb/udc/Kconfig

@@ -70,6 +70,7 @@ module-str = usb drv
 source "subsys/logging/Kconfig.template.log_config"
 
 source "drivers/usb/udc/Kconfig.dwc2"
+source "drivers/usb/udc/Kconfig.dwc3"
 source "drivers/usb/udc/Kconfig.nrf"
 source "drivers/usb/udc/Kconfig.kinetis"
 source "drivers/usb/udc/Kconfig.skeleton"

drivers/usb/udc/Kconfig.dwc3

@@ -0,0 +1,45 @@
+# SPDX-FileCopyrightText: Copyright tinyVision.ai Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+config UDC_DWC3
+	bool "Synopsys USB device controller driver"
+	default y
+	select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
+	select UDC_BUF_FORCE_NOCACHE
+	select UDC_DRIVER_HAS_HIGH_SPEED_SUPPORT
+	depends on DT_HAS_SNPS_DWC3_ENABLED
+	help
+	  Synopsys DWC3 USB device controller driver.
+
+if UDC_DWC3
+
+config UDC_DWC3_EVENTS_NUM
+	int "Number of events in the event ring buffer"
+	default 16
+	help
+	  It is typically not needed to increase the number of events, but
+	  if it were to happen due to some rare condition, increasing this
+	  number could be useful.
+
+config UDC_DWC3_TRB_NUM
+	int "Number of buffers for each non-control endpoint"
+	default 4
+	range 3 32
+	help
+	  This is a general knob for the number of buffers present for each
+	  endpoint. This does not affect control endpoints. The default is
+	  enough for most conditions, but for performance and debug purposes,
+	  increasing could reveal useful.
+
+config UDC_DWC3_TI_AM62
+	bool "TI's AM62 quirk module for the Synopsys DWC3 controller"
+	default y
+	select UDC_DRIVER_HAS_HIGH_SPEED_SUPPORT
+	select SYSCON
+	depends on DT_HAS_TI_DWC3_AM62_ENABLED
+	depends on CLOCK_CONTROL
+	help
+	  Wrapper for configuring TI's vendor specific registers when using
+	  Synopsys DWC3 contorller on TI AM62x SK EVM.
+
+endif # UDC_DWC3