dcd disconnect/connect for transdimension ip

hw/bsp/mimxrt1015_evk/board.mk

@@ -50,3 +50,7 @@ JLINK_IF = swd
 # flash by copying bin file to DAP Mass Storage
 flash: $(BUILD)/$(BOARD)-firmware.bin
 	cp $< /media/$(USER)/RT1015-EVK/
+
+# flash using pyocd
+#flash: $(BUILD)/$(BOARD)-firmware.hex
+#	pyocd flash -b MIMXRT1015-EVK $<

src/portable/nxp/transdimension/dcd_transdimension.c

@@ -322,7 +322,7 @@ void dcd_init(uint8_t rhport)
 {
   tu_memclr(&_dcd_data, sizeof(dcd_data_t));
 
-  dcd_registers_t* const dcd_reg = _dcd_controller[rhport].regs;
+  dcd_registers_t* dcd_reg = _dcd_controller[rhport].regs;
 
   // Reset controller
   dcd_reg->USBCMD |= USBCMD_RESET;
@@ -342,7 +342,6 @@ void dcd_init(uint8_t rhport)
   dcd_reg->USBINTR = INTR_USB | INTR_ERROR | INTR_PORT_CHANGE | INTR_RESET | INTR_SUSPEND /*| INTR_SOF*/;
 
   dcd_reg->USBCMD &= ~0x00FF0000; // Interrupt Threshold Interval = 0
-  dcd_reg->USBCMD |= TU_BIT(0); // connect
 }
 
 void dcd_int_enable(uint8_t rhport)
@@ -376,6 +375,18 @@ void dcd_remote_wakeup(uint8_t rhport)
   (void) rhport;
 }
 
+void dcd_connect(uint8_t rhport)
+{
+  dcd_registers_t* dcd_reg = _dcd_controller[rhport].regs;
+  dcd_reg->USBCMD |= USBCMD_RUN_STOP;
+}
+
+void dcd_disconnect(uint8_t rhport)
+{
+  dcd_registers_t* dcd_reg = _dcd_controller[rhport].regs;
+  dcd_reg->USBCMD &= ~USBCMD_RUN_STOP;
+}
+
 //--------------------------------------------------------------------+
 // HELPER
 //--------------------------------------------------------------------+