rockchip: board: Remove dwc3 usb init and gadget handler functions

Remove board_usb_init() and dm_usb_gadget_handle_interrupts() functions
related to dwc3, they use e.g. a hard-coded reg address for RK3399 and
are obsolete with use of DM_USB_GADGET.

Use of DM_USB_GADGET, USB_DWC3_GENERIC and USB_DWC3_GADGET have replaced
same feature provided by the removed functions on RK3399 boards.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c80d644..efb7053 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1986,6 +1986,7 @@
 	select DM_SERIAL
 	select DM_SPI
 	select DM_SPI_FLASH
+	select DM_USB_GADGET if USB_DWC3_GADGET
 	select ENABLE_ARM_SOC_BOOT0_HOOK
 	select OF_CONTROL
 	select SPI
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
index 57f08e0..38a2a4b 100644
--- a/arch/arm/mach-rockchip/board.c
+++ b/arch/arm/mach-rockchip/board.c
@@ -208,10 +208,8 @@
 }
 #endif
 
-#if defined(CONFIG_USB_GADGET)
+#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 #include <usb.h>
-
-#if defined(CONFIG_USB_GADGET_DWC2_OTG)
 #include <linux/usb/otg.h>
 #include <usb/dwc2_udc.h>
 
@@ -287,32 +285,6 @@
 }
 #endif /* CONFIG_USB_GADGET_DWC2_OTG */
 
-#if defined(CONFIG_USB_DWC3_GADGET) && !defined(CONFIG_DM_USB_GADGET)
-#include <dwc3-uboot.h>
-
-static struct dwc3_device dwc3_device_data = {
-	.maximum_speed = USB_SPEED_HIGH,
-	.base = 0xfe800000,
-	.dr_mode = USB_DR_MODE_PERIPHERAL,
-	.index = 0,
-	.dis_u2_susphy_quirk = 1,
-	.hsphy_mode = USBPHY_INTERFACE_MODE_UTMIW,
-};
-
-int dm_usb_gadget_handle_interrupts(struct udevice *dev)
-{
-	dwc3_uboot_handle_interrupt(dev);
-	return 0;
-}
-
-int board_usb_init(int index, enum usb_init_type init)
-{
-	return dwc3_uboot_init(&dwc3_device_data);
-}
-#endif /* CONFIG_USB_DWC3_GADGET */
-
-#endif /* CONFIG_USB_GADGET */
-
 #if IS_ENABLED(CONFIG_FASTBOOT)
 int fastboot_set_reboot_flag(enum fastboot_reboot_reason reason)
 {