get hcd work esp32p4 but only in slave mode. In DMA channel's HCDMA is increased but data transfer over USB is not correct.

src/common/tusb_mcu.h

@@ -169,6 +169,7 @@
       defined (STM32F107xB) || defined (STM32F107xC)
     #define TUP_USBIP_DWC2
     #define TUP_USBIP_DWC2_STM32
+    #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT 0
 
     #define TUP_DCD_ENDPOINT_MAX  4
   #elif defined(STM32F102x6) || defined(STM32F102xB) || \
@@ -343,12 +344,14 @@
   #define TUP_USBIP_DWC2
   #define TUP_USBIP_DWC2_ESP32
   #define TUP_DCD_ENDPOINT_MAX    7 // only 5 TX FIFO for endpoint IN
+  #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT  0 // TODO currently have issue with buffer DMA with espressif
 
 #elif TU_CHECK_MCU(OPT_MCU_ESP32P4)
   #define TUP_USBIP_DWC2
   #define TUP_USBIP_DWC2_ESP32
   #define TUP_RHPORT_HIGHSPEED    1  // port0 FS, port1 HS
   #define TUP_DCD_ENDPOINT_MAX    16 // FS 7 ep, HS 16 ep
+  #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT  0 // TODO currently have issue with buffer DMA with espressif
 
 #elif TU_CHECK_MCU(OPT_MCU_ESP32, OPT_MCU_ESP32C2, OPT_MCU_ESP32C3, OPT_MCU_ESP32C6, OPT_MCU_ESP32H2)
   #if (CFG_TUD_ENABLED || !(defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421))

src/portable/synopsys/dwc2/dwc2_esp32.h

@@ -100,14 +100,15 @@ TU_ATTR_ALWAYS_INLINE static inline void dwc2_remote_wakeup_delay(void) {
 TU_ATTR_ALWAYS_INLINE static inline void dwc2_phy_init(dwc2_regs_t* dwc2, uint8_t hs_phy_type) {
   (void)dwc2;
   (void)hs_phy_type;
-  // nothing to do
+  // maybe usb_utmi_hal_init()
+
 }
 
 // MCU specific PHY update, it is called AFTER init() and core reset
 TU_ATTR_ALWAYS_INLINE static inline void dwc2_phy_update(dwc2_regs_t* dwc2, uint8_t hs_phy_type) {
   (void)dwc2;
   (void)hs_phy_type;
-  // nothing to do
+  // maybe usb_utmi_hal_disable()
 }
 
 #ifdef __cplusplus

src/portable/synopsys/dwc2/dwc2_type.h

@@ -541,13 +541,22 @@ typedef struct {
     volatile uint32_t gotgctl;          // 000 OTG Control and Status
     volatile dwc2_gotgctl_t gotgctl_bm;
   };
+  union {
     volatile uint32_t gotgint;          // 004 OTG Interrupt
+    volatile dwc2_gotgint_t gotgint_bm;
+  };
+  union {
     volatile uint32_t gahbcfg;          // 008 AHB Configuration
+    volatile dwc2_gahbcfg_t gahbcfg_bm;
+  };
   union {
     volatile uint32_t gusbcfg;          // 00c USB Configuration
     volatile dwc2_gusbcfg_t gusbcfg_bm;
   };
+  union {
     volatile uint32_t grstctl;          // 010 Reset
+    volatile dwc2_grstctl_t grstctl_bm;
+  };
     volatile uint32_t gintsts;          // 014 Interrupt
     volatile uint32_t gintmsk;          // 018 Interrupt Mask
     volatile uint32_t grxstsr;          // 01c Receive Status Debug Read

src/tusb_option.h

@@ -241,6 +241,8 @@
   #include "tusb_config.h"
 #endif
 
+#include "common/tusb_mcu.h"
+
 //--------------------------------------------------------------------+
 // USBIP
 //--------------------------------------------------------------------+
@@ -256,12 +258,18 @@
 
 // Enable DWC2 Slave mode for host
 #ifndef CFG_TUH_DWC2_SLAVE_ENABLE
-  #define CFG_TUH_DWC2_SLAVE_ENABLE 1
+  #ifndef CFG_TUH_DWC2_SLAVE_ENABLE_DEFAULT
+  #define CFG_TUH_DWC2_SLAVE_ENABLE_DEFAULT 1
+  #endif
+  #define CFG_TUH_DWC2_SLAVE_ENABLE CFG_TUH_DWC2_SLAVE_ENABLE_DEFAULT
 #endif
 
 // Enable DWC2 DMA for host
 #ifndef CFG_TUH_DWC2_DMA_ENABLE
-  #define CFG_TUH_DWC2_DMA_ENABLE 1
+  #ifndef CFG_TUH_DWC2_DMA_ENABLE_DEFAULT
+  #define CFG_TUH_DWC2_DMA_ENABLE_DEFAULT 1
+  #endif
+  #define CFG_TUH_DWC2_DMA_ENABLE   CFG_TUH_DWC2_DMA_ENABLE_DEFAULT
 #endif
 
 // Enable PIO-USB software host controller
@@ -278,7 +286,6 @@
   #define CFG_TUH_MAX3421  0
 #endif
 
-#include "common/tusb_mcu.h"
 
 //--------------------------------------------------------------------
 // RootHub Mode detection