import aic dcd port

6 files changed, 1648 insertions, 2 deletions

diff --git a/README.md b/README.md
index 72a222d9..2c3f2900 100644
--- a/README.md
+++ b/README.md
@@ -191,7 +191,7 @@ USB basic concepts and how the CherryUSB Device stack is implemented, see [Cherr
 |HPMicro    |  HPM6750 | hpm/ehci |[hpm_sdk](https://github.com/CherryUSB/hpm_sdk)|<= latest | Long-term |
 |Essemi    |  ES32F36xx | musb |[es32f369_repo](https://github.com/CherryUSB/cherryusb_es32)|<= latest | Long-term |
 |Phytium |  e2000 | pusb2/xhci |[phytium_repo](https://gitee.com/phytium_embedded/phytium-free-rtos-sdk)|v0.10.2  | Long-term |
-|artinchip |  d12x/d13x/d21x | dwc2/ehci/ohci |[luban-lite](https://gitee.com/artinchip/luban-lite)|<= latest  | Long-term |
+|artinchip |  d12x/d13x/d21x | aic/ehci/ohci |[luban-lite](https://gitee.com/artinchip/luban-lite)|<= latest  | Long-term |
 |Espressif    |  esp32s2/esp32s3 | dwc2 |[esp32_repo](https://github.com/CherryUSB/cherryusb_esp32)|<= latest | the same with ST |
 |AllwinnerTech    |  F1C100S/F1C200S | musb |[cherryusb_rtt_f1c100s](https://github.com/CherryUSB/cherryusb_rtt_f1c100s)|<= latest | the same with Essemi |
 |WCH    |  CH32V307/ch58x | ch32_usbfs/ch32_usbhs/ch58x |[wch_repo](https://github.com/CherryUSB/cherryusb_wch)|<= v0.10.2 | TBD |
diff --git a/README_zh.md b/README_zh.md
index 509f4a5d..b6b26c1e 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -190,7 +190,7 @@ CherryUSB 快速入门、USB 基本概念，API 手册，Class 基本概念和�
 |HPMicro    |  HPM6750 | hpm/ehci |[hpm_sdk](https://github.com/CherryUSB/hpm_sdk)|<= latest | Long-term |
 |Essemi    |  ES32F36xx | musb |[es32f369_repo](https://github.com/CherryUSB/cherryusb_es32)|<= latest | Long-term |
 |Phytium |  e2000 | pusb2/xhci |[phytium_repo](https://gitee.com/phytium_embedded/phytium-free-rtos-sdk)|v0.10.2  | Long-term |
-|artinchip |  d12x/d13x/d21x | dwc2/ehci/ohci |[luban-lite](https://gitee.com/artinchip/luban-lite)|<= latest  | Long-term |
+|artinchip |  d12x/d13x/d21x | aic/ehci/ohci |[luban-lite](https://gitee.com/artinchip/luban-lite)|<= latest  | Long-term |
 |Espressif    |  esp32s2/esp32s3 | dwc2 |[esp32_repo](https://github.com/CherryUSB/cherryusb_esp32)|<= latest | the same with ST |
 |AllwinnerTech    |  F1C100S/F1C200S | musb |[cherryusb_rtt_f1c100s](https://github.com/CherryUSB/cherryusb_rtt_f1c100s)|<= latest | the same with Essemi |
 |WCH    |  CH32V307/ch58x | ch32_usbfs/ch32_usbhs/ch58x |[wch_repo](https://github.com/CherryUSB/cherryusb_wch)|<= v0.10.2 | TBD |
diff --git a/SConscript b/SConscript
index b0ae0125..c3deda77 100644
--- a/SConscript
+++ b/SConscript
@@ -53,6 +53,9 @@ if GetDepend(['PKG_CHERRYUSB_DEVICE']):
         src += Glob('port/bouffalolab/usb_dc_bl.c')
     if GetDepend(['PKG_CHERRYUSB_DEVICE_HPM']):
         src += Glob('port/hpm/usb_dc_hpm.c')
+    if GetDepend(['PKG_CHERRYUSB_DEVICE_AIC']):
+        src += Glob('port/aic/usb_dc_aic.c')
+        src += Glob('port/aic/usb_dc_aic_ll.c')
     if GetDepend(['PKG_CHERRYUSB_DEVICE_CH32']):
         if GetDepend(['PKG_CHERRYUSB_DEVICE_HS']):
             src += Glob('port/ch32/usb_dc_usbhs.c')
diff --git a/port/aic/usb_dc_aic.c b/port/aic/usb_dc_aic.c
new file mode 100644
index 00000000..c6adfda6
--- /dev/null
+++ b/port/aic/usb_dc_aic.c
@@ -0,0 +1,1299 @@
+/*
+ * Copyright (c) 2023, Artinchip Technology Co., Ltd
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <rtconfig.h>
+#include "usbd_core.h"
+#include "usb_dc_aic_reg.h"
+
+// clang-format off
+#ifndef   __UNALIGNED_UINT32_WRITE
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wpacked"
+  #pragma GCC diagnostic ignored "-Wattributes"
+  __PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
+  #pragma GCC diagnostic pop
+  #define __UNALIGNED_UINT32_WRITE(addr, val)    (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
+#endif
+#ifndef   __UNALIGNED_UINT32_READ
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wpacked"
+  #pragma GCC diagnostic ignored "-Wattributes"
+  __PACKED_STRUCT T_UINT32_READ { uint32_t v; };
+  #pragma GCC diagnostic pop
+  #define __UNALIGNED_UINT32_READ(addr)          (((const struct T_UINT32_READ *)(const void *)(addr))->v)
+#endif
+// clang-format on
+
+#define FS_PORT 0
+#define HS_PORT 1
+
+#ifndef CONFIG_USB_AIC_DC_PORT
+#error "please select CONFIG_USB_AIC_DC_PORT with FS_PORT or HS_PORT"
+#endif
+
+#ifndef USB_BASE
+#define USB_BASE CONFIG_USB_AIC_DC_BASE
+#endif
+
+#ifdef LPKG_CHERRYUSB_DEVICE_HID_IO_TEMPLATE
+#define USB_RAM_SIZE 1024 /* define with maximum value*/
+#else
+#define USB_RAM_SIZE 512  /* define with maximum value*/
+#endif
+
+#ifndef USB_NUM_BIDIR_ENDPOINTS
+#define USB_NUM_BIDIR_ENDPOINTS 5 /* define with minimum value*/
+#endif
+
+#define AIC_UDC_REG      ((AIC_UDC_RegDef *)(USB_BASE))
+#define AIC_EP_FIFO(i)  *(__IO uint32_t *)(USB_BASE + AIC_EP_FIFO_BASE + ((i)*AIC_EP_FIFO_SIZE))
+
+static uint8_t g_aic_udc_ibuf[USB_RAM_SIZE] __ALIGNED(CACHE_LINE_SIZE);
+static uint8_t g_aic_udc_obuf[USB_RAM_SIZE] __ALIGNED(CACHE_LINE_SIZE);
+
+/* Endpoint state */
+struct aic_ep_state {
+    uint16_t ep_mps;    /* Endpoint max packet size */
+    uint8_t ep_type;    /* Endpoint type */
+    uint8_t ep_stalled; /* Endpoint stall flag */
+    uint8_t *xfer_buf;
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    uint8_t *xfer_align_buf;
+    uint32_t xfer_align_len;
+#endif
+    uint32_t xfer_len;
+    uint32_t actual_xfer_len;
+};
+
+extern uint32_t usbd_clk;
+
+/* Driver state */
+/*USB_NOCACHE_RAM_SECTION*/ struct aic_udc {
+    USB_MEM_ALIGNX struct usb_setup_packet setup;
+    USB_MEM_ALIGNX struct aic_ep_state in_ep[USB_NUM_BIDIR_ENDPOINTS];  /*!< IN endpoint parameters*/
+    struct aic_ep_state out_ep[USB_NUM_BIDIR_ENDPOINTS]; /*!< OUT endpoint parameters */
+    uint32_t tx_fifo_map;
+} g_aic_udc;
+
+uint8_t rst_allow = 0;
+uint8_t ep0_ctrl_stage = 0; /* 1 = setup stage, 2 = data stage, 3 = status stage */
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+void aic_udc_dcache_clean(uintptr_t addr, uint32_t len)
+{
+    aicos_dcache_clean_range((size_t *)addr, len);
+}
+
+void aic_udc_dcache_invalidate(uintptr_t addr, uint32_t len)
+{
+    aicos_dcache_invalid_range((size_t *)addr, len);
+}
+
+void aic_udc_dcache_clean_invalidate(uintptr_t addr, uint32_t len)
+{
+    aicos_dcache_clean_invalid_range((size_t *)addr, len);
+}
+
+static int aic_udc_ep_buf_alloc(struct aic_ep_state *ep, uint32_t len,
+                                uint8_t *sbuf)
+{
+    ep->xfer_len = len;
+    if (len % CACHE_LINE_SIZE)
+        ep->xfer_align_len = ALIGN_UP(len, CACHE_LINE_SIZE);
+    else
+        ep->xfer_align_len = len;
+
+    if (ep->xfer_align_len > USB_RAM_SIZE) {
+        ep->xfer_align_buf = aicos_malloc_align(0, ep->xfer_align_len,
+                                                CACHE_LINE_SIZE);
+        if (!ep->xfer_align_buf) {
+            USB_LOG_ERR("alloc error.\r\n");
+            return -5;
+        }
+    } else {
+        ep->xfer_align_buf = sbuf;
+    }
+
+    return 0;
+}
+
+static void aic_udc_ep_buf_free(struct aic_ep_state *ep, uint8_t *sbuf)
+{
+    if (!ep->xfer_align_buf)
+        return;
+
+    /* Whether the buf is allocated dynamically */
+    if (ep->xfer_align_buf != sbuf)
+        aicos_free_align(0, ep->xfer_align_buf);
+
+    ep->xfer_align_buf = NULL;
+    ep->xfer_align_len = 0;
+}
+
+static int aic_udc_ibuf_alloc(struct aic_ep_state *ep, uint32_t len)
+{
+    return aic_udc_ep_buf_alloc(ep, len, g_aic_udc_ibuf);
+}
+
+static int aic_udc_obuf_alloc(struct aic_ep_state *ep, uint32_t len)
+{
+    return aic_udc_ep_buf_alloc(ep, len, g_aic_udc_obuf);
+}
+
+static void aic_udc_ibuf_free(struct aic_ep_state *ep)
+{
+    aic_udc_ep_buf_free(ep, g_aic_udc_ibuf);
+}
+
+static void aic_udc_obuf_free(struct aic_ep_state *ep)
+{
+    aic_udc_ep_buf_free(ep, g_aic_udc_obuf);
+}
+#else
+#define aic_udc_dcache_clean(addr, len)
+#define aic_udc_dcache_invalidate(addr, len)
+#define aic_udc_dcache_clean_invalidate(addr, len)
+#endif
+
+static void aic_set_dma_nextep(void)
+{
+    uint32_t i;
+
+    /* dma to set the next-endpoint pointer. */
+    for (i = 0; i < USB_NUM_BIDIR_ENDPOINTS; i++) {
+        uint32_t next = ((i + 1) % USB_NUM_BIDIR_ENDPOINTS) << DEPCTL_NEXT_EP_BIT;
+
+        AIC_UDC_REG->inepcfg[i] &= ~DEPCTL_NEXT_EP_MASK;
+        AIC_UDC_REG->inepcfg[i] |= next;
+    }
+}
+
+static inline int aic_reset(void)
+{
+    uint32_t count = 0U;
+
+    /* Wait for AHB master IDLE state. */
+    do {
+        if (++count > 200000U) {
+            return -1;
+        }
+    } while ((AIC_UDC_REG->ahbbasic & AHBBASIC_AHBIDLE) == 0U);
+
+    /* Core Soft Reset */
+    count = 0U;
+    AIC_UDC_REG->usbdevinit |= USBDEVINIT_CSFTRST;
+
+    do {
+        if (++count > 200000U) {
+            return -1;
+        }
+    } while ((AIC_UDC_REG->usbdevinit & USBDEVINIT_CSFTRST) == USBDEVINIT_CSFTRST);
+
+    return 0;
+}
+
+static inline int aic_core_init(void)
+{
+    int ret;
+    uint32_t usb_gusbcfg =
+        0 << 19     /* ULPI Clock SuspendM */
+        | 0 << 18   /* ULPI Phy Auto Resume */
+        | 0 << 15   /* PHY Low Power Clock sel */
+        | 0x5 << 10 /* USB Turnaround time (0x5 for HS phy) */
+        | 0 << 7    /* ULPI DDR sel 0:single 8bit, 1:double 4bit */
+        /*| 0 << 6   0: high speed utmi+, 1: full speed serial*/
+#ifdef FPGA_BOARD_ARTINCHIP
+        | 1 << 4    /* 0: utmi+, 1:ulpi*/
+#else
+        | 0 << 4    /* 0: utmi+, 1:ulpi*/
+#endif
+        | 0 << 3    /* UTMI+ PHY  0:8bit, 1:16bit (ULPI PHY set 8bit) */
+        | 0x7 << 0; /* HS/FS timeout calibration**/
+
+    /* Reset after a PHY select */
+    ret = aic_reset();
+
+    /* Activate the USB Transceiver */
+    AIC_UDC_REG->usbphyif = usb_gusbcfg;
+
+    aic_set_dma_nextep();
+
+    return ret;
+}
+
+static inline int aic_flush_rxfifo(void)
+{
+    uint32_t count = 0;
+
+    AIC_UDC_REG->usbdevinit |= USBDEVINIT_RXFFLSH;
+
+    do {
+        if (++count > 200000U) {
+            return -1;
+        }
+    } while ((AIC_UDC_REG->usbdevinit & USBDEVINIT_RXFFLSH) == USBDEVINIT_RXFFLSH);
+
+    return 0;
+}
+
+static inline int aic_flush_txfifo(uint32_t num)
+{
+    uint32_t count = 0U;
+
+    AIC_UDC_REG->usbdevinit |= USBDEVINIT_TXFNUM(num & USBDEVINIT_TXFNUM_LIMIT);
+
+    do {
+        if (++count > 200000U) {
+            return -1;
+        }
+    } while ((AIC_UDC_REG->usbdevinit & USBDEVINIT_TXFFLSH) == USBDEVINIT_TXFFLSH);
+
+    return 0;
+}
+
+static void aic_set_turnaroundtime(uint32_t hclk, uint8_t speed)
+{
+    uint32_t UsbTrd;
+
+    /* The USBTRD is configured according to the tables below, depending on AHB frequency
+  used by application. In the low AHB frequency range it is used to stretch enough the USB response
+  time to IN tokens, the USB turnaround time, so to compensate for the longer AHB read access
+  latency to the Data FIFO */
+    if (speed == USB_ENUM_SPEED_FULL) {
+        if ((hclk >= 14200000U) && (hclk < 15000000U)) {
+            /* hclk Clock Range between 14.2-15 MHz */
+            UsbTrd = 0xFU;
+        } else if ((hclk >= 15000000U) && (hclk < 16000000U)) {
+            /* hclk Clock Range between 15-16 MHz */
+            UsbTrd = 0xEU;
+        } else if ((hclk >= 16000000U) && (hclk < 17200000U)) {
+            /* hclk Clock Range between 16-17.2 MHz */
+            UsbTrd = 0xDU;
+        } else if ((hclk >= 17200000U) && (hclk < 18500000U)) {
+            /* hclk Clock Range between 17.2-18.5 MHz */
+            UsbTrd = 0xCU;
+        } else if ((hclk >= 18500000U) && (hclk < 20000000U)) {
+            /* hclk Clock Range between 18.5-20 MHz */
+            UsbTrd = 0xBU;
+        } else if ((hclk >= 20000000U) && (hclk < 21800000U)) {
+            /* hclk Clock Range between 20-21.8 MHz */
+            UsbTrd = 0xAU;
+        } else if ((hclk >= 21800000U) && (hclk < 24000000U)) {
+            /* hclk Clock Range between 21.8-24 MHz */
+            UsbTrd = 0x9U;
+        } else if ((hclk >= 24000000U) && (hclk < 27700000U)) {
+            /* hclk Clock Range between 24-27.7 MHz */
+            UsbTrd = 0x8U;
+        } else if ((hclk >= 27700000U) && (hclk < 32000000U)) {
+            /* hclk Clock Range between 27.7-32 MHz */
+            UsbTrd = 0x7U;
+        } else {/* if(hclk >= 32000000) */
+            /* hclk Clock Range between 32-200 MHz */
+            UsbTrd = 0x6U;
+        }
+    } else if (speed == USB_ENUM_SPEED_HIGH) {
+        UsbTrd = USBPHYIF_HS_TRDT_VALUE;
+    } else {
+        UsbTrd = USBPHYIF_DEFAULT_TRDT_VALUE;
+    }
+
+    AIC_UDC_REG->usbphyif |= USBPHYIF_TOUTCAL_LIMIT;
+
+    AIC_UDC_REG->usbphyif &= ~USBPHYIF_USBTRDTIM_MASK;
+    AIC_UDC_REG->usbphyif |= (uint32_t)((UsbTrd << USBPHYIF_USBTRDTIM_SHIFT)
+                                        & USBPHYIF_USBTRDTIM_MASK);
+}
+
+#if 0
+static void aic_set_txfifo(uint8_t fifo, uint16_t size)
+{
+    uint8_t i;
+    uint32_t Tx_Offset;
+
+    /*  TXn min size = 16 words. (n  : Transmit FIFO index)
+      When a TxFIFO is not used, the Configuration should be as follows:
+          case 1 :  n > m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+         --> Txm can use the space allocated for Txn.
+         case2  :  n < m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+         --> Txn should be configured with the minimum space of 16 words
+     The FIFO is used optimally when used TxFIFOs are allocated in the top
+         of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
+     When DMA is used 3n * FIFO locations should be reserved for internal DMA registers */
+
+    Tx_Offset = AIC_UDC_REG->rxfifosiz;
+
+    if (fifo == 0U) {
+        AIC_UDC_REG->nptxfifosiz = ((uint32_t)size << 16) | Tx_Offset;
+    } else {
+        Tx_Offset += (AIC_UDC_REG->nptxfifosiz) >> 16;
+        for (i = 0U; i < (fifo - 1U); i++) {
+            Tx_Offset += (AIC_UDC_REG->txfifosiz[i] >> 16);
+        }
+
+        /* Multiply Tx_Size by 2 to get higher performance */
+        AIC_UDC_REG->txfifosiz[fifo - 1U] = ((uint32_t)size << 16) | Tx_Offset;
+    }
+}
+#endif
+
+static uint8_t aic_get_devspeed(void)
+{
+    uint8_t speed;
+    uint32_t DevEnumSpeed = AIC_UDC_REG->usblinests & USB_ENUM_SPEED_MASK;
+
+    if (DevEnumSpeed == USB_HIGH_30_60MHZ) {
+        speed = USB_ENUM_SPEED_HIGH;
+    } else if (DevEnumSpeed == USB_FULL_30_60MHZ) {
+        speed = USB_ENUM_SPEED_FULL;
+    } else {
+        speed = 0xFU;
+    }
+
+    return speed;
+}
+
+static void aic_ep0_start_read_setup(uint8_t *psetup)
+{
+    g_aic_udc.out_ep[0].xfer_buf = psetup;
+    g_aic_udc.out_ep[0].xfer_len = 8;
+    ep0_ctrl_stage = 1;
+
+    aic_udc_dcache_invalidate((uintptr_t)psetup, CACHE_LINE_SIZE);
+
+    AIC_UDC_REG->outeptsfsiz[0] = 0U;
+    AIC_UDC_REG->outeptsfsiz[0] |= (DXEPTSIZ_PKT_CNT_MASK & (1U << 19));
+    AIC_UDC_REG->outeptsfsiz[0] |= (3U * 8U);
+    AIC_UDC_REG->outeptsfsiz[0] |= DXEPTSIZ_MULCNT_MASK;
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    AIC_UDC_REG->outepdmaaddr[0] = (uint32_t)(uintptr_t)psetup;
+#endif
+
+    /* EP enable */
+    AIC_UDC_REG->outepcfg[0] |= DEPCTL_CNAK | DEPCTL_EPENA | DEPCTL_USBACTEP;
+}
+
+void aic_ep_write(uint8_t ep_idx, uint8_t *src, uint16_t len)
+{
+    uint32_t *pSrc = (uint32_t *)src;
+    uint32_t count32b, i;
+
+    count32b = ((uint32_t)len + 3U) / 4U;
+    for (i = 0U; i < count32b; i++) {
+        AIC_EP_FIFO(ep_idx) = __UNALIGNED_UINT32_READ(pSrc);
+        pSrc++;
+    }
+}
+
+void aic_ep_read(uint8_t *dest, uint16_t len)
+{
+    uint32_t *pDest = (uint32_t *)dest;
+    uint32_t i;
+    uint32_t count32b = ((uint32_t)len + 3U) / 4U;
+
+    for (i = 0U; i < count32b; i++) {
+        __UNALIGNED_UINT32_WRITE(pDest, AIC_EP_FIFO(0U));
+        pDest++;
+    }
+}
+
+#ifndef CONFIG_USB_AIC_DMA_ENABLE
+static void aic_tx_fifo_empty_procecss(uint8_t ep_idx)
+{
+    uint32_t len;
+    //uint32_t len32b;
+
+    len = g_aic_udc.in_ep[ep_idx].xfer_len - g_aic_udc.in_ep[ep_idx].actual_xfer_len;
+    if (len > g_aic_udc.in_ep[ep_idx].ep_mps) {
+        len = g_aic_udc.in_ep[ep_idx].ep_mps;
+    }
+
+    //len32b = (len + 3U) / 4U;
+
+    while (/*((AIC_UDC_REG->ineptxsts[ep_idx] & INEPTXSTS_IN_EP_TXFIFO_STS) >= len32b) &&*/
+           (g_aic_udc.in_ep[ep_idx].actual_xfer_len < g_aic_udc.in_ep[ep_idx].xfer_len) && (g_aic_udc.in_ep[ep_idx].xfer_len != 0U)) {
+        /* Write the FIFO */
+        len = g_aic_udc.in_ep[ep_idx].xfer_len - g_aic_udc.in_ep[ep_idx].actual_xfer_len;
+        if (len > g_aic_udc.in_ep[ep_idx].ep_mps) {
+            len = g_aic_udc.in_ep[ep_idx].ep_mps;
+        }
+
+        aic_ep_write(ep_idx, g_aic_udc.in_ep[ep_idx].xfer_buf, len);
+        g_aic_udc.in_ep[ep_idx].xfer_buf += len;
+        g_aic_udc.in_ep[ep_idx].actual_xfer_len += len;
+    }
+}
+#endif
+
+/**
+  * @brief  aic_get_glb_intstatus: return the global USB interrupt status
+  * @retval status
+  */
+static inline uint32_t aic_get_glb_intstatus(void)
+{
+    uint32_t tmpreg;
+
+    tmpreg = AIC_UDC_REG->usbintsts;
+    tmpreg &= AIC_UDC_REG->usbintmsk;
+
+    return tmpreg;
+}
+
+/**
+  * @brief  aic_get_outeps_intstatus: return the USB device OUT endpoints interrupt status
+  * @retval status
+  */
+static inline uint32_t aic_get_outeps_intstatus(void)
+{
+    uint32_t tmpreg;
+
+    tmpreg = AIC_UDC_REG->usbepint;
+    tmpreg &= AIC_UDC_REG->usbepintmsk;
+
+    return ((tmpreg & 0xffff0000U) >> 16);
+}
+
+/**
+  * @brief  aic_get_ineps_intstatus: return the USB device IN endpoints interrupt status
+  * @retval status
+  */
+static inline uint32_t aic_get_ineps_intstatus(void)
+{
+    uint32_t tmpreg;
+
+    tmpreg = AIC_UDC_REG->usbepint;
+    tmpreg &= AIC_UDC_REG->usbepintmsk;
+
+    return ((tmpreg & 0xFFFFU));
+}
+
+/**
+  * @brief  Returns Device OUT EP Interrupt register
+  * @param  epnum  endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device OUT EP Interrupt register
+  */
+static inline uint32_t aic_get_outep_intstatus(uint8_t epnum)
+{
+    uint32_t tmpreg;
+
+    tmpreg = AIC_UDC_REG->outepint[epnum];
+    tmpreg &= AIC_UDC_REG->outepintmsk;
+
+    return tmpreg;
+}
+
+/**
+  * @brief  Returns Device IN EP Interrupt register
+  * @param  epnum  endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device IN EP Interrupt register
+  */
+static inline uint32_t aic_get_inep_intstatus(uint8_t epnum)
+{
+    uint32_t tmpreg;
+
+    tmpreg = AIC_UDC_REG->inepint[epnum];
+    tmpreg &= AIC_UDC_REG->inepintmsk;
+
+    return tmpreg;
+}
+
+__WEAK void usb_dc_low_level_init(void)
+{
+}
+
+__WEAK void usb_dc_low_level_deinit(void)
+{
+}
+
+int usb_dc_rst(void)
+{
+    for (uint8_t i = 0U; i < USB_NUM_BIDIR_ENDPOINTS; i++) {
+        if (i == 0U) {
+            AIC_UDC_REG->inepcfg[i] = DEPCTL_SNAK;
+            AIC_UDC_REG->outepcfg[i] = DEPCTL_SNAK;
+        } else {
+            usbd_ep_close(i);
+            usbd_ep_close(i | 0x80);
+        }
+        AIC_UDC_REG->ineptsfsiz[i] = 0U;
+        AIC_UDC_REG->inepint[i] = 0xFBFFU;
+        AIC_UDC_REG->outeptsfsiz[i] = 0U;
+        AIC_UDC_REG->outepint[i] = 0xFBFFU;
+    }
+
+    AIC_UDC_REG->usbepintmsk |= 0x10001U;
+    AIC_UDC_REG->outepintmsk = CTRL_OUT_EP_SETUP_PHASE_DONE | TRANSFER_DONE;
+    AIC_UDC_REG->inepintmsk = TRANSFER_DONE;
+#ifndef CONFIG_USB_AIC_DMA_ENABLE
+    AIC_UDC_REG->inepintmsk |= INTKN_TXFEMP;
+#endif
+
+    aic_flush_txfifo(0x10U);
+    aic_flush_rxfifo();
+
+    aic_set_dma_nextep();
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    for (uint8_t i = 0U; i < USB_NUM_BIDIR_ENDPOINTS; i++) {
+        aic_udc_obuf_free(&g_aic_udc.out_ep[i]);
+        aic_udc_ibuf_free(&g_aic_udc.in_ep[i]);
+    }
+#endif
+
+    memset(&g_aic_udc, 0, sizeof(struct aic_udc));
+    usbd_event_reset_handler(0);
+    /* Start reading setup */
+    aic_ep0_start_read_setup((uint8_t *)&g_aic_udc.setup);
+
+    return 0;
+}
+
+int usb_dc_init(uint8_t busid)
+{
+    int ret;
+    uint32_t base = 0;
+
+    memset(&g_aic_udc, 0, sizeof(struct aic_udc));
+
+    usb_dc_low_level_init();
+
+    /* Disconnect */
+    AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_SFTDISCON;
+    /* Disable Interrupt */
+    AIC_UDC_REG->usbdevinit &= ~USBDEVINIT_GLBL_INTR_EN;
+
+    ret = aic_core_init();
+
+    for (uint8_t i = 0U; i < 2U; i++) {
+        AIC_UDC_REG->txfifosiz[i] = 0U;
+    }
+
+    /* Device mode configuration */
+    AIC_UDC_REG->usbdevconf |= PERIOD_FRAME_INTERVAL_80;
+
+#if defined(CONFIG_USB_HS)
+    /* Set Core speed to High speed mode */
+    AIC_UDC_REG->usbdevconf |= DEV_SPEED_HIGH_SPEED_20;
+#else
+
+    AIC_UDC_REG->usbdevconf |= DEV_SPEED_FULL_SPEED_20;
+#endif
+
+    ret = aic_flush_txfifo(0x10U);
+    ret = aic_flush_rxfifo();
+
+    /* Clear all pending Device Interrupts */
+    AIC_UDC_REG->inepintmsk = 0U;
+    AIC_UDC_REG->outepintmsk = 0U;
+    AIC_UDC_REG->usbepintmsk = 0U;
+
+    /* Disable all interrupts. */
+    AIC_UDC_REG->usbintmsk = 0U;
+    /* Clear any pending interrupts */
+    AIC_UDC_REG->usbintsts = 0xBFFFFFFFU;
+
+    /* Enable interrupts matching to the Device mode ONLY */
+    AIC_UDC_REG->usbintmsk = INT_RESET | INT_ENUMDONE |
+                             INT_OUT_EP | INT_IN_EP |
+                             INT_INCOMP_ISO_IN_INT | INT_INCOMP_ISO_OUT_INT;
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    AIC_UDC_REG->usbdevinit |= (USBDEVINIT_HBSTLEN_INCR4 << USBDEVINIT_HBSTLEN_SHIFT);
+    AIC_UDC_REG->usbdevinit |= USBDEVINIT_DMA_EN;
+#else
+    AIC_UDC_REG->usbintmsk |= INT_RX_FIFO_NOT_EMPTY;
+#endif
+
+    /* Assign FIFO */
+    base = 0;
+    AIC_UDC_REG->rxfifosiz = AIC_RX_FIFO_SIZE;
+    base += AIC_RX_FIFO_SIZE;
+    AIC_UDC_REG->nptxfifosiz = (AIC_NP_TX_FIFO_SIZE << 16) | base;
+    base += AIC_NP_TX_FIFO_SIZE;
+    AIC_UDC_REG->txfifosiz[0] = (AIC_PERIOD_TX_FIFO1_SIZE << 16) | base;
+    base += AIC_PERIOD_TX_FIFO1_SIZE;
+    AIC_UDC_REG->txfifosiz[1] = (AIC_PERIOD_TX_FIFO2_SIZE << 16) | base;
+
+    usb_dc_rst();
+
+    /* Enable Interrupt */
+    AIC_UDC_REG->usbdevinit |= USBDEVINIT_GLBL_INTR_EN;
+    /* Connect */
+    AIC_UDC_REG->usbdevfunc &= ~USBDEVFUNC_SFTDISCON;
+
+    return ret;
+}
+
+int usb_dc_deinit(uint8_t busid)
+{
+    /* Clear Pending interrupt */
+    for (uint8_t i = 0U; i < USB_NUM_BIDIR_ENDPOINTS; i++) {
+        AIC_UDC_REG->outepint[i] = 0xFB7FU;
+        AIC_UDC_REG->inepint[i] = 0xFB7FU;
+    }
+
+    /* Clear interrupt masks */
+    AIC_UDC_REG->inepintmsk = 0U;
+    AIC_UDC_REG->outepintmsk = 0U;
+    AIC_UDC_REG->usbepintmsk = 0U;
+
+    /* Flush the FIFO */
+    aic_flush_txfifo(0x10U);
+    aic_flush_rxfifo();
+
+    AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_SFTDISCON;
+
+    usb_dc_low_level_deinit();
+    return 0;
+}
+
+int usbd_set_address(uint8_t busid, const uint8_t addr)
+{
+    AIC_UDC_REG->usbdevconf &= ~(DEVICE_ADDRESS_MASK);
+    AIC_UDC_REG->usbdevconf |= ((uint32_t)addr << 4) & DEVICE_ADDRESS_MASK;
+
+    rst_allow = 1;
+    return 0;
+}
+
+uint8_t usbd_get_port_speed(uint8_t busid)
+{
+    uint8_t speed;
+    uint32_t DevEnumSpeed = AIC_UDC_REG->usblinests & USB_ENUM_SPEED_MASK;
+
+    if (DevEnumSpeed == USB_HIGH_30_60MHZ) {
+        speed = USB_SPEED_HIGH;
+    } else if (DevEnumSpeed == USB_FULL_30_60MHZ) {
+        speed = USB_SPEED_FULL;
+    } else {
+        speed = USB_SPEED_FULL;
+    }
+
+    return speed;
+}
+
+int usbd_ep_open(uint8_t busid, const struct usb_endpoint_descriptor *ep)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep->bEndpointAddress);
+    uint16_t ep_mps;
+    uint8_t tx_fifo_num = 0;
+    uint32_t i;
+
+    if (ep_idx > (USB_NUM_BIDIR_ENDPOINTS - 1)) {
+        USB_LOG_ERR("Ep addr %d overflow\r\n", ep->bEndpointAddress);
+        return -1;
+    }
+
+    if (USB_EP_DIR_IS_OUT(ep->bEndpointAddress)) {
+        g_aic_udc.out_ep[ep_idx].ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
+        g_aic_udc.out_ep[ep_idx].ep_type = USB_GET_ENDPOINT_TYPE(ep->bmAttributes);
+
+        AIC_UDC_REG->usbepintmsk |= DAINT_OUT_MASK & (uint32_t)(1UL << (16 + ep_idx));
+
+        ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
+        if (ep_idx == 0) {
+            switch (ep_mps) {
+                case 8:
+                    ep_mps = DEPCTL0_MPS_8;
+                    break;
+                case 16:
+                    ep_mps = DEPCTL0_MPS_16;
+                    break;
+                case 32:
+                    ep_mps = DEPCTL0_MPS_32;
+                    break;
+                case 64:
+                    ep_mps = DEPCTL0_MPS_64;
+                    break;
+            }
+        }
+
+        AIC_UDC_REG->outepcfg[ep_idx] |= (ep_mps & DEPCTL_MPS_MASK) |
+                                          ((uint32_t)USB_GET_ENDPOINT_TYPE(ep->bmAttributes) << 18) |
+                                          DEPCTL_SETD0PID |
+                                          DEPCTL_USBACTEP;
+    } else {
+        g_aic_udc.in_ep[ep_idx].ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
+        g_aic_udc.in_ep[ep_idx].ep_type = USB_GET_ENDPOINT_TYPE(ep->bmAttributes);
+
+        AIC_UDC_REG->usbepintmsk |= DAINT_IN_MASK & (uint32_t)(1UL << ep_idx);
+
+        /* Period IN EP alloc fifo num */
+        if (( USB_GET_ENDPOINT_TYPE(ep->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) ||
+            ( USB_GET_ENDPOINT_TYPE(ep->bmAttributes) == USB_ENDPOINT_TYPE_ISOCHRONOUS)) {
+            for (i=1; i<=2; i++) {
+                if (g_aic_udc.tx_fifo_map & (1<<i))
+                    continue;
+                g_aic_udc.tx_fifo_map |= (1 << i);
+                tx_fifo_num = i;
+                break;
+            }
+
+            if (tx_fifo_num == 0)
+                return -1;
+
+            aic_flush_txfifo(tx_fifo_num);
+        }
+
+        AIC_UDC_REG->inepcfg[ep_idx] |= (USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize) & DEPCTL_MPS_MASK) |
+                                         ((uint32_t)USB_GET_ENDPOINT_TYPE(ep->bmAttributes) << 18) |
+                                         (tx_fifo_num << 22) |
+                                         DEPCTL_SETD0PID |
+                                         DEPCTL_USBACTEP;
+    }
+    return 0;
+}
+
+int usbd_ep_close(uint8_t busid, const uint8_t ep)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+    uint8_t tx_fifo_num = 0;
+    int i = 0;
+    #define DIS_EP_TIMOUT 100
+
+    if (USB_EP_DIR_IS_OUT(ep)) {
+        if (AIC_UDC_REG->outepcfg[ep_idx] & DEPCTL_EPENA) {
+            /* (1) Wait for global nak to take effect */
+            if (!(AIC_UDC_REG->usbintsts & INT_GOUTNAKEFF))
+                AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_SGOUTNAK;
+
+            for (i = 0; i < DIS_EP_TIMOUT; i++) {
+                if (AIC_UDC_REG->usbintsts & INT_GOUTNAKEFF)
+                    break;
+                aic_udelay(1);
+            }
+
+            if (i == DIS_EP_TIMOUT)
+                USB_LOG_ERR("%s: timeout USBINTSTS.GOUTNAKEFF\n", __func__);
+
+            /* (2) Disable ep */
+            AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SNAK;
+            AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_EPDIS;
+
+            for (i = 0; i < DIS_EP_TIMOUT; i++) {
+                if (AIC_UDC_REG->outepint[ep_idx] & EPDISBLD)
+                    break;
+                aic_udelay(1);
+            }
+
+            if (i == DIS_EP_TIMOUT)
+                USB_LOG_ERR("%s: timeout OUTEPCFG.EPDisable\n", __func__);
+
+            /* Clear EPDISBLD interrupt */
+            AIC_UDC_REG->outepint[ep_idx] |= EPDISBLD;
+
+            /* (3) Remove global NAKs */
+            AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_CGOUTNAK;
+        }
+
+        AIC_UDC_REG->usbepintmsk &= ~(DAINT_OUT_MASK & (uint32_t)(1UL << (16 + ep_idx)));
+        AIC_UDC_REG->outepcfg[ep_idx] = 0;
+    } else {
+        tx_fifo_num = (AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_TXFIFONUM_MASK) >> DEPCTL_TXFIFONUM_SHIFT;
+
+        if (AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_EPENA) {
+            if (tx_fifo_num) {
+                /* (1) Wait for Nak effect */
+                AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SNAK;
+
+                for (i = 0; i < DIS_EP_TIMOUT; i++) {
+                    if (AIC_UDC_REG->inepint[ep_idx] & INEP_NAKEFF)
+                        break;
+                    aic_udelay(1);
+                }
+
+                if (i == DIS_EP_TIMOUT)
+                    USB_LOG_ERR("%s: timeout INEPINT.NAKEFF\n", __func__);
+            } else {
+                /* (1) Wait for Nak effect */
+                AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_SGNPINNAK;
+
+                for (i = 0; i < DIS_EP_TIMOUT; i++) {
+                    if (AIC_UDC_REG->usbintsts & INT_GINNAKEFF)
+                        break;
+                    aic_udelay(1);
+                }
+
+                if (i == DIS_EP_TIMOUT)
+                    USB_LOG_ERR("%s: timeout USBINTSTS.GOUTNAKEFF\n", __func__);
+            }
+
+            /* (2) Disable ep */
+            AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SNAK;
+            AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_EPDIS;
+
+            for (i = 0; i < DIS_EP_TIMOUT; i++) {
+                if (AIC_UDC_REG->inepint[ep_idx] & EPDISBLD)
+                    break;
+                aic_udelay(1);
+            }
+
+            if (i == DIS_EP_TIMOUT)
+                USB_LOG_ERR("%s: timeout OUTEPCFG.EPDisable\n", __func__);
+
+            /* Clear EPDISBLD interrupt */
+            AIC_UDC_REG->inepint[ep_idx] |= EPDISBLD;
+
+            /* (3) Clear Global In NP NAK in Shared FIFO for non periodic ep */
+            if (!tx_fifo_num)
+                AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_CGNPINNAK;
+        }
+
+        AIC_UDC_REG->usbepintmsk &= ~(DAINT_OUT_MASK & (uint32_t)(1UL << ep_idx));
+        AIC_UDC_REG->inepcfg[ep_idx] = 0;
+
+        /* Flush TX FIFO */
+        aic_flush_txfifo(tx_fifo_num);
+
+        /* Period IN EP free fifo num */
+        if (tx_fifo_num > 0)
+            g_aic_udc.tx_fifo_map &= ~(1<<tx_fifo_num);
+    }
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    if (USB_EP_DIR_IS_OUT(ep)) {
+        aic_udc_obuf_free(&g_aic_udc.out_ep[ep_idx]);
+    } else {
+        aic_udc_ibuf_free(&g_aic_udc.in_ep[ep_idx]);
+    }
+#endif
+
+    return 0;
+}
+
+int usbd_ep_set_stall(uint8_t busid, const uint8_t ep)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+
+    if (USB_EP_DIR_IS_OUT(ep)) {
+        if (((AIC_UDC_REG->outepcfg[ep_idx] & DEPCTL_EPENA) == 0U) && (ep_idx != 0U)) {
+            AIC_UDC_REG->outepcfg[ep_idx] &= ~(DEPCTL_EPDIS);
+        }
+        AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_STALL;
+    } else {
+        if (((AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_EPENA) == 0U) && (ep_idx != 0U)) {
+            AIC_UDC_REG->inepcfg[ep_idx] &= ~(DEPCTL_EPDIS);
+        }
+        AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_STALL;
+    }
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    if (ep_idx == 0) {
+        aic_ep0_start_read_setup((uint8_t *)&g_aic_udc.setup);
+    }
+#endif
+    return 0;
+}
+
+int usbd_ep_clear_stall(uint8_t busid, const uint8_t ep)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+
+    if (USB_EP_DIR_IS_OUT(ep)) {
+        AIC_UDC_REG->outepcfg[ep_idx] &= ~DEPCTL_STALL;
+        if ((g_aic_udc.out_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_INTERRUPT) ||
+            (g_aic_udc.out_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_BULK)) {
+            AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SETD0PID; /* DATA0 */
+        }
+    } else {
+        AIC_UDC_REG->inepcfg[ep_idx] &= ~DEPCTL_STALL;
+        if ((g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_INTERRUPT) ||
+            (g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_BULK)) {
+            AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SETD0PID; /* DATA0 */
+        }
+    }
+
+    return 0;
+}
+
+int usbd_ep_is_stalled(uint8_t busid, const uint8_t ep, uint8_t *stalled)
+{
+    if (USB_EP_DIR_IS_OUT(ep)) {
+    } else {
+    }
+    return 0;
+}
+
+int usbd_ep_start_write(uint8_t busid, const uint8_t ep, const uint8_t *data, uint32_t data_len)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+    uint32_t pktcnt = 0;
+
+    if (!data && data_len) {
+        return -1;
+    }
+    if (AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_EPENA) {
+        return -2;
+    }
+    if (ep_idx && !(AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_MPS_MASK)) {
+        return -3;
+    }
+    if ((uint32_t)(uintptr_t)data & 0x03) {
+        return -4;
+    }
+
+    g_aic_udc.in_ep[ep_idx].xfer_buf = (uint8_t *)data;
+    g_aic_udc.in_ep[ep_idx].xfer_len = data_len;
+    g_aic_udc.in_ep[ep_idx].actual_xfer_len = 0;
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    if ((ep_idx != 0) && (data_len > 0) &&
+        ((((uint32_t)(uintptr_t)data % CACHE_LINE_SIZE) != 0) ||
+         (((uint32_t)(uintptr_t)(data + data_len) % CACHE_LINE_SIZE) != 0))) {
+
+        if (g_aic_udc.in_ep[ep_idx].xfer_align_len != data_len) {
+            int ret = 0;
+
+            aic_udc_ibuf_free(&g_aic_udc.in_ep[ep_idx]);
+            ret = aic_udc_ibuf_alloc(&g_aic_udc.in_ep[ep_idx], data_len);
+            if (ret)
+                return ret;
+        }
+        memcpy(g_aic_udc.in_ep[ep_idx].xfer_align_buf, data, data_len);
+        data = g_aic_udc.in_ep[ep_idx].xfer_align_buf;
+    } else {
+        aic_udc_ibuf_free(&g_aic_udc.in_ep[ep_idx]);
+    }
+
+    if (data_len>0)
+        aic_udc_dcache_clean((uintptr_t)data, ALIGN_UP(data_len, CACHE_LINE_SIZE));
+#endif
+
+    AIC_UDC_REG->ineptsfsiz[ep_idx] &= ~(DXEPTSIZ_PKT_CNT_MASK);
+    AIC_UDC_REG->ineptsfsiz[ep_idx] &= ~(DXEPTSIZ_XFER_SIZE_MASK);
+    AIC_UDC_REG->ineptsfsiz[ep_idx] &= ~(DXEPTSIZ_MULCNT_MASK);
+
+    if (data_len == 0) {
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (1U << 19));
+        AIC_UDC_REG->inepcfg[ep_idx] |= (DEPCTL_CNAK | DEPCTL_EPENA);
+        return 0;
+    }
+
+    if (ep_idx == 0) {
+        if (data_len > g_aic_udc.in_ep[ep_idx].ep_mps) {
+            data_len = g_aic_udc.in_ep[ep_idx].ep_mps;
+        }
+        g_aic_udc.in_ep[ep_idx].xfer_len = data_len;
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (1U << 19));
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (DXEPTSIZ_XFER_SIZE_MASK & data_len);
+    } else {
+        pktcnt = (uint16_t)((data_len + g_aic_udc.in_ep[ep_idx].ep_mps - 1U) / g_aic_udc.in_ep[ep_idx].ep_mps);
+
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (pktcnt << 19));
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (DXEPTSIZ_XFER_SIZE_MASK & data_len);
+    }
+
+    if ((g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_ISOCHRONOUS) ||
+        (g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_INTERRUPT)) {
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (1<<DXEPTSIZ_MULCNT_SHIFT);
+    }
+
+    if (g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_ISOCHRONOUS) {
+        if ((AIC_UDC_REG->usblinests & (1U << 8)) == 0U) {
+            AIC_UDC_REG->inepcfg[ep_idx] &= ~DEPCTL_SETD0PID;
+            AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SETD1PID;
+        } else {
+            AIC_UDC_REG->inepcfg[ep_idx] &= ~DEPCTL_SETD1PID;
+            AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SETD0PID;
+        }
+        AIC_UDC_REG->ineptsfsiz[ep_idx] &= ~(DXEPTSIZ_MULCNT_MASK);
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (1U << DXEPTSIZ_MULCNT_SHIFT);
+    } else if (g_aic_udc.in_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_INTERRUPT) {
+        AIC_UDC_REG->ineptsfsiz[ep_idx] &= ~(DXEPTSIZ_MULCNT_MASK);
+        AIC_UDC_REG->ineptsfsiz[ep_idx] |= (1U << DXEPTSIZ_MULCNT_SHIFT);
+    }
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    AIC_UDC_REG->inepdmaaddr[ep_idx] = (uint32_t)(uintptr_t)data;
+#endif
+
+    AIC_UDC_REG->inepcfg[ep_idx] |= (DEPCTL_CNAK | DEPCTL_EPENA);
+
+    return 0;
+}
+
+int usbd_ep_start_read(uint8_t busid, const uint8_t ep, uint8_t *data, uint32_t data_len)
+{
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+    uint32_t pktcnt = 0;
+
+    if (!data && data_len) {
+        return -1;
+    }
+    if (AIC_UDC_REG->outepcfg[ep_idx] & DEPCTL_EPENA) {
+        return -2;
+    }
+    if (ep_idx && !(AIC_UDC_REG->outepcfg[ep_idx] & DEPCTL_MPS_MASK)) {
+        return -3;
+    }
+    if (((uint32_t)(uintptr_t)data) & 0x03) {
+        return -4;
+    }
+
+    g_aic_udc.out_ep[ep_idx].xfer_buf = (uint8_t *)data;
+    g_aic_udc.out_ep[ep_idx].xfer_len = data_len;
+    g_aic_udc.out_ep[ep_idx].actual_xfer_len = 0;
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    if ((ep_idx != 0) && (data_len > 0) &&
+        ((((uint32_t)(uintptr_t)data % CACHE_LINE_SIZE) != 0) ||
+         (((uint32_t)(uintptr_t)(data + data_len) % CACHE_LINE_SIZE) != 0))) {
+
+        if (g_aic_udc.out_ep[ep_idx].xfer_align_len != data_len) {
+            int ret = 0;
+
+            aic_udc_obuf_free(&g_aic_udc.out_ep[ep_idx]);
+            ret = aic_udc_obuf_alloc(&g_aic_udc.out_ep[ep_idx], data_len);
+            if (ret)
+                return ret;
+        }
+        data = g_aic_udc.out_ep[ep_idx].xfer_align_buf;
+    } else {
+        aic_udc_obuf_free(&g_aic_udc.out_ep[ep_idx]);
+    }
+
+    if (data_len > 0)
+        aic_udc_dcache_invalidate((uintptr_t)data, ALIGN_UP(data_len, CACHE_LINE_SIZE));
+#endif
+
+    AIC_UDC_REG->outeptsfsiz[ep_idx] &= ~(DXEPTSIZ_PKT_CNT_MASK);
+    AIC_UDC_REG->outeptsfsiz[ep_idx] &= ~(DXEPTSIZ_XFER_SIZE_MASK);
+    if (data_len == 0) {
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (1 << 19));
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_XFER_SIZE_MASK & g_aic_udc.out_ep[ep_idx].ep_mps);
+        AIC_UDC_REG->outepcfg[ep_idx] |= (DEPCTL_CNAK | DEPCTL_EPENA);
+        return 0;
+    }
+
+    if (ep_idx == 0) {
+        if (data_len > g_aic_udc.out_ep[ep_idx].ep_mps) {
+            data_len = g_aic_udc.out_ep[ep_idx].ep_mps;
+        }
+        g_aic_udc.out_ep[ep_idx].xfer_len = data_len;
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (1U << 19));
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_XFER_SIZE_MASK & data_len);
+    } else {
+        pktcnt = (uint16_t)((data_len + g_aic_udc.out_ep[ep_idx].ep_mps - 1U) / g_aic_udc.out_ep[ep_idx].ep_mps);
+
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_PKT_CNT_MASK & (pktcnt << 19));
+        AIC_UDC_REG->outeptsfsiz[ep_idx] |= (DXEPTSIZ_XFER_SIZE_MASK & data_len);
+    }
+
+#ifdef CONFIG_USB_AIC_DMA_ENABLE
+    AIC_UDC_REG->outepdmaaddr[ep_idx] = (uint32_t)(uintptr_t)data;
+#endif
+    if (g_aic_udc.out_ep[ep_idx].ep_type == USB_ENDPOINT_TYPE_ISOCHRONOUS) {
+        if ((AIC_UDC_REG->usblinests & (1U << 8)) == 0U) {
+            AIC_UDC_REG->outepcfg[ep_idx] &= ~DEPCTL_SETD0PID;
+            AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SETD1PID;
+        } else {
+            AIC_UDC_REG->outepcfg[ep_idx] &= ~DEPCTL_SETD1PID;
+            AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SETD0PID;
+        }
+    }
+    AIC_UDC_REG->outepcfg[ep_idx] |= (DEPCTL_CNAK | DEPCTL_EPENA);
+    return 0;
+}
+
+void USBD_IRQHandler(void)
+{
+    uint32_t gint_status, ep_idx, ep_intr, epint, daintmask;
+    gint_status = aic_get_glb_intstatus();
+
+    /* Avoid spurious interrupt */
+    if (gint_status == 0) {
+        return;
+    }
+
+#ifndef CONFIG_USB_AIC_DMA_ENABLE
+    uint32_t temp;
+    uint32_t read_count;
+
+    /* Handle RxQLevel Interrupt */
+    if (gint_status & INT_RX_FIFO_NOT_EMPTY) {
+        AIC_UDC_REG->usbintmsk &= ~(INT_RX_FIFO_NOT_EMPTY);
+
+        temp = AIC_UDC_REG->rxfifosts_pop;
+        ep_idx = temp & RXFIFOSTS_EPNUM_MASK;
+
+        if ((temp & RXFIFOSTS_PKTSTS_MASK)  == PKTSTS_OUT_DATA_PKT_REC) {
+            read_count = (temp & RXFIFOSTS_BCNT_MASK) >> 4;
+            if (read_count != 0) {
+                aic_ep_read(g_aic_udc.out_ep[ep_idx].xfer_buf, read_count);
+                g_aic_udc.out_ep[ep_idx].xfer_buf += read_count;
+            }
+        } else if ((temp & RXFIFOSTS_PKTSTS_MASK) == PKTSTS_SETUP_DATA_PKT_REC) {
+            read_count = (temp & RXFIFOSTS_BCNT_MASK) >> 4;
+            aic_ep_read((uint8_t *)&g_aic_udc.setup, read_count);
+        } else {
+            /* ... */
+        }
+        AIC_UDC_REG->usbintmsk |= INT_RX_FIFO_NOT_EMPTY;
+    }
+#endif
+    if (gint_status & INT_OUT_EP) {
+        ep_idx = 0;
+        ep_intr = aic_get_outeps_intstatus();
+        while (ep_intr != 0U) {
+            if ((ep_intr & 0x1U) != 0U) {
+                epint = aic_get_outep_intstatus(ep_idx);
+                uint32_t DoepintReg = AIC_UDC_REG->outepint[ep_idx];
+                AIC_UDC_REG->outepint[ep_idx] = DoepintReg;
+
+                struct aic_ep_state *ep = &g_aic_udc.out_ep[ep_idx];
+                if ((epint & TRANSFER_DONE) == TRANSFER_DONE) {
+                    #ifdef CONFIG_USB_AIC_DMA_ENABLE
+                    if (ep->xfer_align_buf)
+                        memcpy(ep->xfer_buf, ep->xfer_align_buf, ep->xfer_len);
+                    #endif
+                    if ((ep_idx == 0)) {
+                        if (ep0_ctrl_stage == 1) {
+                            ep0_ctrl_stage = 2;
+                            usbd_event_ep0_setup_complete_handler(0, (uint8_t *)&g_aic_udc.setup);
+                        } else {
+                            if (ep->xfer_len == 0) {
+                                /* Out status, start reading setup */
+                                aic_ep0_start_read_setup((uint8_t *)&g_aic_udc.setup);
+                            } else {
+                                ep->actual_xfer_len = ep->xfer_len - ((AIC_UDC_REG->outeptsfsiz[ep_idx]) & DXEPTSIZ_XFER_SIZE_MASK);
+                                ep->xfer_len = 0;
+                                usbd_event_ep_out_complete_handler(0, 0x00, ep->actual_xfer_len);
+                            }
+                        }
+                    } else {
+                        ep->actual_xfer_len = ep->xfer_len - ((AIC_UDC_REG->outeptsfsiz[ep_idx]) & DXEPTSIZ_XFER_SIZE_MASK);
+                        ep->xfer_len = 0;
+                        usbd_event_ep_out_complete_handler(0, ep_idx, ep->actual_xfer_len);
+                    }
+                }
+
+                if ((epint & CTRL_OUT_EP_SETUP_PHASE_DONE) == CTRL_OUT_EP_SETUP_PHASE_DONE) {
+                    if (ep0_ctrl_stage == 1) {
+                        ep0_ctrl_stage = 2;
+                        usbd_event_ep0_setup_complete_handler(0, (uint8_t *)&g_aic_udc.setup);
+                    }
+                }
+            }
+            ep_intr >>= 1U;
+            ep_idx++;
+        }
+    }
+
+#ifndef CONFIG_USB_AIC_DMA_ENABLE
+    if (gint_status & INT_NP_TX_FIFO_EMPTY) {
+        AIC_UDC_REG->usbintmsk &= ~(INT_NP_TX_FIFO_EMPTY);
+        aic_tx_fifo_empty_procecss(0);
+    }
+#endif
+
+    if (gint_status & INT_IN_EP) {
+        ep_idx = 0U;
+        ep_intr = aic_get_ineps_intstatus();
+        while (ep_intr != 0U) {
+            if ((ep_intr & 0x1U) != 0U) {
+                epint = aic_get_inep_intstatus(ep_idx);
+                uint32_t DiepintReg = AIC_UDC_REG->inepint[ep_idx];
+                AIC_UDC_REG->inepint[ep_idx] = DiepintReg;
+
+                if ((epint & TRANSFER_DONE) == TRANSFER_DONE) {
+                    if (ep_idx == 0) {
+                        g_aic_udc.in_ep[ep_idx].actual_xfer_len = g_aic_udc.in_ep[ep_idx].xfer_len - ((AIC_UDC_REG->ineptsfsiz[ep_idx]) & DXEPTSIZ_XFER_SIZE_MASK);
+                        g_aic_udc.in_ep[ep_idx].xfer_len = 0;
+                        usbd_event_ep_in_complete_handler(0, 0x80, g_aic_udc.in_ep[ep_idx].actual_xfer_len);
+
+                        if (g_aic_udc.setup.wLength && ((g_aic_udc.setup.bmRequestType & USB_REQUEST_DIR_MASK) == USB_REQUEST_DIR_OUT)) {
+                            /* In status, start reading setup */
+                            aic_ep0_start_read_setup((uint8_t *)&g_aic_udc.setup);
+                        } else if (g_aic_udc.setup.wLength == 0) {
+                            /* In status, start reading setup */
+                            aic_ep0_start_read_setup((uint8_t *)&g_aic_udc.setup);
+                        }
+                    } else {
+                        g_aic_udc.in_ep[ep_idx].actual_xfer_len = g_aic_udc.in_ep[ep_idx].xfer_len - ((AIC_UDC_REG->ineptsfsiz[ep_idx]) & DXEPTSIZ_XFER_SIZE_MASK);
+                        g_aic_udc.in_ep[ep_idx].xfer_len = 0;
+                        usbd_event_ep_in_complete_handler(0, ep_idx | 0x80, g_aic_udc.in_ep[ep_idx].actual_xfer_len);
+                    }
+                }
+
+                #ifndef CONFIG_USB_AIC_DMA_ENABLE
+                if ((epint & INTKN_TXFEMP) == INTKN_TXFEMP) {
+                    aic_tx_fifo_empty_procecss(ep_idx);
+                }
+                #endif
+            }
+            ep_intr >>= 1U;
+            ep_idx++;
+        }
+    }
+    if (gint_status & INT_RESET) {
+        AIC_UDC_REG->usbintsts |= INT_RESET;
+        AIC_UDC_REG->usbdevfunc &= ~USBDEVFUNC_RMTWKUPSIG;
+
+        usb_dc_rst();
+    }
+
+    if (gint_status & INT_ENUMDONE) {
+        AIC_UDC_REG->usbintsts |= INT_ENUMDONE;
+        aic_set_turnaroundtime(usbd_clk, aic_get_devspeed());
+
+        AIC_UDC_REG->usbdevfunc |= USBDEVFUNC_CGNPINNAK;
+    }
+    if (gint_status & INT_INCOMP_ISO_OUT_INT) {
+        daintmask = AIC_UDC_REG->usbepintmsk;
+        daintmask >>= 16;
+
+        for (ep_idx = 1; ep_idx < USB_NUM_BIDIR_ENDPOINTS; ep_idx++) {
+            if ((BIT(ep_idx) & ~daintmask) || (g_aic_udc.out_ep[ep_idx].ep_type != USB_ENDPOINT_TYPE_ISOCHRONOUS))
+                continue;
+            if (!(AIC_UDC_REG->outepcfg[ep_idx] & DEPCTL_USBACTEP))
+                continue;
+
+            if ((AIC_UDC_REG->usblinests & (1U << 8)) != 0U) {
+                AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SETD0PID;
+                AIC_UDC_REG->outepcfg[ep_idx] &= ~DEPCTL_SETD1PID;
+            } else {
+                AIC_UDC_REG->outepcfg[ep_idx] &= ~DEPCTL_SETD0PID;
+                AIC_UDC_REG->outepcfg[ep_idx] |= DEPCTL_SETD1PID;
+            }
+        }
+
+        AIC_UDC_REG->usbintsts |= INT_INCOMP_ISO_OUT_INT;
+    }
+
+    if (gint_status & INT_INCOMP_ISO_IN_INT) {
+        daintmask = AIC_UDC_REG->usbepintmsk;
+        daintmask >>= 16;
+
+        for (ep_idx = 1; ep_idx < USB_NUM_BIDIR_ENDPOINTS; ep_idx++) {
+            if (((BIT(ep_idx) & ~daintmask)) || (g_aic_udc.in_ep[ep_idx].ep_type != USB_ENDPOINT_TYPE_ISOCHRONOUS))
+                continue;
+
+            if (!(AIC_UDC_REG->inepcfg[ep_idx] & DEPCTL_USBACTEP))
+                continue;
+
+            if ((AIC_UDC_REG->usblinests & (1U << 8)) != 0U) {
+                AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SETD0PID;
+                AIC_UDC_REG->inepcfg[ep_idx] &= ~DEPCTL_SETD1PID;
+            } else {
+                AIC_UDC_REG->inepcfg[ep_idx] &= ~DEPCTL_SETD0PID;
+                AIC_UDC_REG->inepcfg[ep_idx] |= DEPCTL_SETD1PID;
+            }
+        }
+        AIC_UDC_REG->usbintsts |= INT_INCOMP_ISO_IN_INT;
+    }
+
+    if (gint_status & INT_SOF) {
+        AIC_UDC_REG->usbintsts |= INT_SOF;
+    }
+    if (gint_status & INT_SUSPEND) {
+        AIC_UDC_REG->usbintsts |= INT_SUSPEND;
+    }
+    if (gint_status & INT_RESUME) {
+        AIC_UDC_REG->usbintsts |= INT_RESUME;
+    }
+}
diff --git a/port/aic/usb_dc_aic_ll.c b/port/aic/usb_dc_aic_ll.c
new file mode 100644
index 00000000..d2db1b5d
--- /dev/null
+++ b/port/aic/usb_dc_aic_ll.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2022, Artinchip Technology Co., Ltd
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <aic_core.h>
+#include <aic_hal.h>
+#include <hal_syscfg.h>
+#include "usbd_core.h"
+#include "usb_dc_aic_reg.h"
+
+extern irqreturn_t USBD_IRQHandler(int irq, void * data);
+
+uint32_t usbd_clk;
+
+void usb_dc_low_level_init(void)
+{
+    /* set usb0 phy switch: Host/Device */
+#ifdef AIC_USING_USB0_DEVICE
+    syscfg_usb_phy0_sw_host(0);
+#endif
+    /* set pin-mux */
+
+    /* enable clock */
+    hal_clk_enable(CONFIG_USB_AIC_DC_PHY_CLK);
+    hal_clk_enable(CONFIG_USB_AIC_DC_CLK);
+    aicos_udelay(300);
+    hal_reset_assert(CONFIG_USB_AIC_DC_PHY_RESET);
+    hal_reset_assert(CONFIG_USB_AIC_DC_RESET);
+    aicos_udelay(300);
+    hal_reset_deassert(CONFIG_USB_AIC_DC_PHY_RESET);
+    hal_reset_deassert(CONFIG_USB_AIC_DC_RESET);
+    aicos_udelay(300);
+
+    usbd_clk = hal_clk_get_freq(CONFIG_USB_AIC_DC_CLK);
+
+    /* register interrupt callback */
+    aicos_request_irq(CONFIG_USB_AIC_DC_IRQ_NUM, USBD_IRQHandler,
+                      0, "usb_device", NULL);
+    aicos_irq_enable(CONFIG_USB_AIC_DC_IRQ_NUM);
+}
+
diff --git a/port/aic/usb_dc_aic_reg.h b/port/aic/usb_dc_aic_reg.h
new file mode 100644
index 00000000..80e6997a
--- /dev/null
+++ b/port/aic/usb_dc_aic_reg.h
@@ -0,0 +1,301 @@
+/*
+ * Copyright (c) 2022, Artinchip Technology Co., Ltd
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __USB_DC_AIC_REG_H__
+#define __USB_DC_AIC_REG_H__
+
+#define __IO volatile               /*!< Defines 'read / write' permissions */
+
+typedef struct {
+    __IO uint32_t ahbbasic;         /* 0x0000: AHBBASIC */
+    __IO uint32_t usbdevinit;       /* 0x0004: USBDEVINIT */
+    __IO uint32_t usbphyif;         /* 0x0008: USBPHYIF */
+    __IO uint32_t usbulpiphy;       /* 0x000C: USBULPIPHY */
+    __IO uint32_t usbintsts;        /* 0x0010: USBINTSTS */
+    __IO uint32_t usbintmsk;        /* 0x0014: USBINTMSK */
+    __IO uint32_t rxfifosiz;        /* 0x0018: RXFIFOSIZ */
+    __IO uint32_t rxfifosts_pop;    /* 0x001C: RXFIFOSTS pop */
+    __IO uint32_t nptxfifosiz;      /* 0x0020: NPTXFIFOSIZ */
+    __IO uint32_t nptxfifosts;      /* 0x0024: NPTXFIFOSTS */
+    __IO uint32_t txfifosiz[2];     /* 0x0028 - 0x002C: TXFIFOSIZ() */
+    __IO uint32_t rxfifosts_dbg;    /* 0x0030: RXFIFOSTS_DBG */
+    uint8_t  res0[0x1cc];
+    __IO uint32_t usbdevconf;       /* 0x0200: USBDEVCONF */
+    __IO uint32_t usbdevfunc;       /* 0x0204: USBDEVFUNC */
+    __IO uint32_t usblinests;       /* 0x0208: USBLINESTS */
+    __IO uint32_t inepintmsk;       /* 0x020C: INEPINTMSK */
+    __IO uint32_t outepintmsk;      /* 0x0210: OUTEPINTMSK */
+    __IO uint32_t usbepint;         /* 0x0214: USBEPINT */
+    __IO uint32_t usbepintmsk;      /* 0x0218: USBEPINTMSK */
+    uint8_t  res1[4];
+    __IO uint32_t inepcfg[5];       /* 0x0220 - 0x0230: INEPCFG() */
+    uint8_t  res2[0xc];
+    __IO uint32_t outepcfg[5];      /* 0x0240 - 0x0250: OUTEPCFG() */
+    uint8_t  res3[0xc];
+    __IO uint32_t inepint[5];       /* 0x0260 - 0x0270: INEPINT() */
+    uint8_t  res4[0xc];
+    __IO uint32_t outepint[5];      /* 0x0280 - 0x0290: OUTEPINT() */
+    uint8_t  res5[0xc];
+    __IO uint32_t ineptsfsiz[5];    /* 0x02A0 - 0x02B0: INEPTSFSIZ() */
+    uint8_t  res6[0xc];
+    __IO uint32_t outeptsfsiz[5];   /* 0x02C0 - 0x02D0: OUTEPTSFSIZ() */
+    uint8_t  res7[0x2c];
+    __IO uint32_t inepdmaaddr[5];   /* 0x0300 - 0x0310: INEPDMAADDR() */
+    uint8_t  res8[0xc];
+    __IO uint32_t outepdmaaddr[5];  /* 0x0320 - 0x0330: OUTEPDMAADDR() */
+    uint8_t  res9[0xc];
+    __IO uint32_t ineptxsts[5];     /* 0x0340 - 0x0350: INEPTXSTS() */
+    uint8_t  res10[0xc];
+    __IO uint32_t dtknqr1;          /* 0x0360: DTKNQR1 */
+    __IO uint32_t dtknqr2;          /* 0x0364: DTKNQR2 */
+    __IO uint32_t dtknqr3;          /* 0x0368: DTKNQR3 */
+    __IO uint32_t dtknqr4;          /* 0x036C: DTKNQR4 */
+}AIC_UDC_RegDef;
+
+/*===================================================================== */
+/*definitions related to CSR setting */
+
+/* AHBBASIC */
+#define AHBBASIC_NOTI_ALL_DMA_WRIT      (1 << 8)
+#define AHBBASIC_REM_MEM_SUPP           (1 << 7)
+#define AHBBASIC_INV_DESC_ENDIANNESS    (1 << 6)
+#define AHBBASIC_AHB_SINGLE             (1 << 5)
+#define AHBBASIC_TXENDDELAY             (1 << 3)
+#define AHBBASIC_AHBIDLE                (1 << 2)
+#define AHBBASIC_DMAREQ                 (1 << 1)
+
+/* USBDEVINIT */
+#define USBDEVINIT_HBSTLEN_MASK         (0xf << 12)
+#define USBDEVINIT_HBSTLEN_SHIFT        12
+#define USBDEVINIT_HBSTLEN_SINGLE       0
+#define USBDEVINIT_HBSTLEN_INCR         1
+#define USBDEVINIT_HBSTLEN_INCR4        3
+#define USBDEVINIT_HBSTLEN_INCR8        5
+#define USBDEVINIT_HBSTLEN_INCR16       7
+#define USBDEVINIT_DMA_EN               (1 << 11)
+#define USBDEVINIT_NP_TXF_EMP_LVL       (1 << 10)
+#define USBDEVINIT_GLBL_INTR_EN         (1 << 9)
+#define USBDEVINIT_CTRL_MASK            (USBDEVINIT_NP_TXF_EMP_LVL | \
+                                         USBDEVINIT_DMA_EN | \
+                                         USBDEVINIT_GLBL_INTR_EN)
+#define USBDEVINIT_IN_TKNQ_FLSH         (1 << 8)
+#define USBDEVINIT_TXFNUM_MASK          (0x1f << 3)
+#define USBDEVINIT_TXFNUM_SHIFT         3
+#define USBDEVINIT_TXFNUM_LIMIT         0x1f
+#define USBDEVINIT_TXFNUM(_x)           ((_x) << 3)
+#define USBDEVINIT_TXFFLSH              (1 << 2)
+#define USBDEVINIT_RXFFLSH              (1 << 1)
+#define USBDEVINIT_CSFTRST              (1 << 0)
+
+/* USBPHYIF */
+#define USBPHYIF_ULPI_CLK_SUSP_M        (1 << 19)
+#define USBPHYIF_ULPI_AUTO_RES          (1 << 18)
+#define USBPHYIF_PHY_LP_CLK_SEL         (1 << 15)
+#define USBPHYIF_USBTRDTIM_MASK         (0xf << 10)
+#define USBPHYIF_USBTRDTIM_SHIFT        10
+#ifndef USBPHYIF_HS_TRDT_VALUE
+#define USBPHYIF_HS_TRDT_VALUE          9U
+#endif /* USBD_HS_TRDT_VALUE */
+#ifndef USBPHYIF_FS_TRDT_VALUE
+#define USBPHYIF_FS_TRDT_VALUE          5U
+#define USBPHYIF_DEFAULT_TRDT_VALUE     9U
+#endif /* USBD_HS_TRDT_VALUE */
+#define USBPHYIF_DDRSEL                 (1 << 7)
+#define USBPHYIF_ULPI_UTMI_SEL          (1 << 4)
+#define USBPHYIF_PHYIF16                (1 << 3)
+#define USBPHYIF_PHYIF8                 (0 << 3)
+#define USBPHYIF_TOUTCAL_MASK           (0x7 << 0)
+#define USBPHYIF_TOUTCAL_SHIFT          0
+#define USBPHYIF_TOUTCAL_LIMIT          0x7
+#define USBPHYIF_TOUTCAL(_x)            ((_x) << 0)
+
+/* USBINTSTS/USBINTMSK interrupt register */
+#define INT_RESUME                      (1u << 31)
+#define INT_INCOMP_ISO_OUT_INT          (0x1 << 21)
+#define INT_INCOMP_ISO_IN_INT           (0x1 << 20)
+#define INT_OUT_EP                      (0x1 << 19)
+#define INT_IN_EP                       (0x1 << 18)
+#define INT_ENUMDONE                    (0x1 << 13)
+#define INT_RESET                       (0x1 << 12)
+#define INT_SUSPEND                     (0x1 << 11)
+#define INT_EARLY_SUSPEND               (0x1 << 10)
+#define INT_GOUTNAKEFF                  (0x1 << 7)
+#define INT_GINNAKEFF                   (0x1 << 6)
+#define INT_NP_TX_FIFO_EMPTY            (0x1 << 5)
+#define INT_RX_FIFO_NOT_EMPTY           (0x1 << 4)
+#define INT_SOF                         (0x1 << 3)
+
+#define FULL_SPEED_CONTROL_PKT_SIZE     8
+#define FULL_SPEED_BULK_PKT_SIZE        64
+
+#define HIGH_SPEED_CONTROL_PKT_SIZE     64
+#define HIGH_SPEED_BULK_PKT_SIZE        512
+
+#define RX_FIFO_SIZE                    (1024)
+#define NPTX_FIFO_SIZE                  (1024)
+#define PTX_FIFO_SIZE                   (384)
+
+/* fifo size configure */
+#define EPS_NUM                         5
+#define PERIOD_IN_EP_NUM                2
+#define TOTAL_FIFO_SIZE                 0x3f6
+#define AIC_RX_FIFO_SIZE                0x119
+#define AIC_NP_TX_FIFO_SIZE             0x100
+#define AIC_PERIOD_TX_FIFO1_SIZE        0x100
+#define AIC_PERIOD_TX_FIFO2_SIZE        0xDD
+
+#define DEPCTL_TXFNUM_0                 (0x0 << 22)
+#define DEPCTL_TXFNUM_1                 (0x1 << 22)
+#define DEPCTL_TXFNUM_2                 (0x2 << 22)
+#define DEPCTL_TXFNUM_3                 (0x3 << 22)
+#define DEPCTL_TXFNUM_4                 (0x4 << 22)
+
+/* RXFIFOSTS */
+#define RXFIFOSTS_EPNUM_MASK            (0xFU << 0)
+#define RXFIFOSTS_BCNT_MASK             (0x7FFU << 4)
+#define RXFIFOSTS_DPID_MASK             (0x3U << 15)
+#define RXFIFOSTS_PKTSTS_SHIFT          (17)
+#define RXFIFOSTS_PKTSTS_MASK           (0xFU << RXFIFOSTS_PKTSTS_SHIFT)
+#define PKTSTS_GLOBAL_OUT_NAK           (0x1 << RXFIFOSTS_PKTSTS_SHIFT)
+#define PKTSTS_OUT_DATA_PKT_REC         (0x2 << RXFIFOSTS_PKTSTS_SHIFT)
+#define PKTSTS_OUT_TRANSFER_COMP        (0x3 << RXFIFOSTS_PKTSTS_SHIFT)
+#define PKTSTS_SETUP_TRANSACTION_COMP   (0x4 << RXFIFOSTS_PKTSTS_SHIFT)
+#define PKTSTS_SETUP_DATA_PKT_REC       (0x6 << RXFIFOSTS_PKTSTS_SHIFT)
+#define RXFIFOSTS_FN_MASK               (0xFU << 21)
+
+/* USBDEVCONF */
+#define DEV_SPEED_HIGH_SPEED_20         (0x0 << 0)
+#define DEV_SPEED_FULL_SPEED_20         (0x1 << 0)
+#define DEV_SPEED_LOW_SPEED_11          (0x2 << 0)
+#define DEV_SPEED_FULL_SPEED_11         (0x3 << 0)
+#define EP_MISS_CNT(x)                  (x << 18)
+#define DEVICE_ADDRESS_MASK             (0x7F << 4)
+#define DEVICE_ADDRESS(x)               (x << 4)
+#define PERIOD_FRAME_INTERVAL_80        (0 << 11)
+#define PERIOD_FRAME_INTERVAL_85        (1 << 11)
+#define PERIOD_FRAME_INTERVAL_90        (2 << 11)
+#define PERIOD_FRAME_INTERVAL_95        (3 << 11)
+
+/* USBDEVFUNC */
+#define NORMAL_OPERATION                (0x1 << 0)
+#define SOFT_DISCONNECT                 (0x1 << 1)
+#define USBDEVFUNC_SERVICE_INTERVAL_SUPPORTED (1 << 19)
+#define USBDEVFUNC_PWRONPRGDONE         (1 << 11)
+#define USBDEVFUNC_CGOUTNAK             (1 << 10)
+#define USBDEVFUNC_SGOUTNAK             (1 << 9)
+#define USBDEVFUNC_CGNPINNAK            (1 << 8)
+#define USBDEVFUNC_SGNPINNAK            (1 << 7)
+#define USBDEVFUNC_TSTCTL_MASK          (0x7 << 4)
+#define USBDEVFUNC_TSTCTL_SHIFT         (4)
+#define USBDEVFUNC_GOUTNAKSTS           (1 << 3)
+#define USBDEVFUNC_GNPINNAKSTS          (1 << 2)
+#define USBDEVFUNC_SFTDISCON            (1 << 1)
+#define USBDEVFUNC_RMTWKUPSIG           (1 << 0)
+
+/* USBLINESTS: Enumeration speed */
+#define USB_ENUM_SPEED_SHIFT            1
+#define USB_ENUM_SPEED_MASK             (0x3 << USB_ENUM_SPEED_SHIFT)
+#define USB_ENUM_SPEED_HIGH             0
+#define USB_ENUM_SPEED_FULL             1
+#define USB_HIGH_30_60MHZ               (0x0 << USB_ENUM_SPEED_SHIFT)
+#define USB_FULL_30_60MHZ               (0x1 << USB_ENUM_SPEED_SHIFT)
+#define USB_LOW_6MHZ                    (0x2 << USB_ENUM_SPEED_SHIFT)
+#define USB_FULL_48MHZ                  (0x3 << USB_ENUM_SPEED_SHIFT)
+
+/* USBEPINT endpoint interrupt register */
+#define DAINT_OUT_BIT                   (16)
+#define DAINT_IN_MASK                   (0xFFFF)
+#define DAINT_OUT_MASK                  (0xFFFFU << DAINT_OUT_BIT)
+
+/* INEPCFG()/OUTEPCFG()
+ * devicecontrol IN/OUT endpoint 0 control register
+ */
+#define DEPCTL_EPENA                    (1u << 31)
+#define DEPCTL_EPDIS                    (0x1 << 30)
+#define DEPCTL_SETD1PID                 (0x1 << 29)
+#define DEPCTL_SETD0PID                 (0x1 << 28)
+#define DEPCTL_SNAK                     (0x1 << 27)
+#define DEPCTL_CNAK                     (0x1 << 26)
+#define DEPCTL_TXFIFONUM_SHIFT          22
+#define DEPCTL_TXFIFONUM_MASK           (0xF << 22)
+#define DEPCTL_STALL                    (0x1 << 21)
+#define DEPCTL_TYPE_BIT                 (18)
+#define DEPCTL_TYPE_MASK                (0x3 << 18)
+#define DEPCTL_CTRL_TYPE                (0x0 << 18)
+#define DEPCTL_ISO_TYPE                 (0x1 << 18)
+#define DEPCTL_BULK_TYPE                (0x2 << 18)
+#define DEPCTL_INTR_TYPE                (0x3 << 18)
+#define DEPCTL_USBACTEP                 (0x1 << 15)
+#define DEPCTL_NEXT_EP_BIT              (11)
+#define DEPCTL_NEXT_EP_MASK             (0xFU << DEPCTL_NEXT_EP_BIT)
+#define DEPCTL_MPS_BIT                  (0)
+#define DEPCTL_MPS_MASK                 (0x7FF)
+
+#define DEPCTL0_MPS_64                  (0x0 << 0)
+#define DEPCTL0_MPS_32                  (0x1 << 0)
+#define DEPCTL0_MPS_16                  (0x2 << 0)
+#define DEPCTL0_MPS_8                   (0x3 << 0)
+#define DEPCTL_MPS_BULK_512             (512 << 0)
+#define DEPCTL_MPS_INT_MPS_16           (16 << 0)
+
+#define DIEPCTL0_NEXT_EP_BIT            (11)
+
+/* INEPINT/OUTEPINT device IN/OUT endpoint interrupt register */
+#define TXFIFO_EMP_INT                  (0x1 << 7)
+#define INEP_NAKEFF                     (0x1 << 6)
+#define BACK2BACK_SETUP_RECEIVED        (0x1 << 6)
+#define INTKNEPMIS                      (0x1 << 5)
+#define INTKN_TXFEMP                    (0x1 << 4)
+#define NON_ISO_IN_EP_TIMEOUT           (0x1 << 3)
+#define CTRL_OUT_EP_SETUP_PHASE_DONE    (0x1 << 3)
+#define AHB_ERROR                       (0x1 << 2)
+#define EPDISBLD                        (0x1 << 1)
+#define TRANSFER_DONE                   (0x1 << 0)
+
+/* Masks definitions */
+#define GINTMSK_INIT                    (INT_OUT_EP | INT_IN_EP | INT_RESUME | INT_ENUMDONE\
+                                        | INT_RESET | INT_SUSPEND)
+#define DOEPMSK_INIT                    (CTRL_OUT_EP_SETUP_PHASE_DONE |\
+                                        AHB_ERROR | TRANSFER_DONE)
+#define DIEPMSK_INIT                    (NON_ISO_IN_EP_TIMEOUT | AHB_ERROR | TRANSFER_DONE)
+#define GAHBCFG_INIT                    (USBDEVINIT_DMA_EN | USBDEVINIT_GLBL_INTR_EN\
+                                        | (USBDEVINIT_HBSTLEN_INCR4 <<\
+                                        USBDEVINIT_HBSTLEN_SHIFT))
+
+/* INEPTSFSIZ/OUTEPTSFSIZ */
+#define DXEPTSIZ_MULCNT_SHIFT           29
+#define DXEPTSIZ_MULCNT_MASK            (0x3U << DXEPTSIZ_MULCNT_SHIFT)
+#define DXEPTSIZ_PKT_CNT_SHIFT          19
+#define DXEPTSIZ_PKT_CNT_MASK           (0x3FFU << DXEPTSIZ_PKT_CNT_SHIFT)
+#define DXEPTSIZ_XFER_SIZE_SHIFT        0
+#define DXEPTSIZ_XFER_SIZE_MASK         (0x7FFFFU << DXEPTSIZ_XFER_SIZE_SHIFT)
+
+/* Device Endpoint X Transfer Size Register INEPTSFSIZ() */
+#define DIEPT_SIZ_PKT_CNT(x)            (x << 19)
+#define DIEPT_SIZ_XFER_SIZE(x)          (x << 0)
+
+/* Device OUT Endpoint X Transfer Size Register OUTEPTSFSIZ() */
+#define DOEPT_SIZ_PKT_CNT(x)            (x << 19)
+#define DOEPT_SIZ_XFER_SIZE(x)          (x << 0)
+#define DOEPT_SIZ_XFER_SIZE_MAX_EP0     (0x7F << 0)
+#define DOEPT_SIZ_XFER_SIZE_MAX_EP      (0x7FFF << 0)
+
+/* Device Endpoint-N Control Register INEPCFG()/OUTEPCFG() */
+#define DIEPCTL_TX_FIFO_NUM(x)          (x << 22)
+#define DIEPCTL_TX_FIFO_NUM_MASK        (~DIEPCTL_TX_FIFO_NUM(0xF))
+
+/* Device ALL Endpoints Interrupt Register (USBEPINT) */
+#define DAINT_IN_EP_INT(x)              (x << 0)
+#define DAINT_OUT_EP_INT(x)             (x << 16)
+
+#define AIC_EP_FIFO_BASE                0x1000UL
+#define AIC_EP_FIFO_SIZE                0x1000UL
+
+/* In EPn Txfifo Status (INEPTXSTS) */
+#define INEPTXSTS_IN_EP_TXFIFO_STS      (0xFFFFU << 0)
+
+
+#endif