This adds a driver for the dwc2 controller in host mode. The driver is
taken from U-Boot-2019.10 and tested on a Raspberry Pi 3.

Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---
 drivers/usb/host/Kconfig  |    3 +
 drivers/usb/host/Makefile |    1 +
 drivers/usb/host/dwc2.c   | 1132 +++++++++++++++++++++++++++++++++++++
 drivers/usb/host/dwc2.h   |  778 +++++++++++++++++++++++++
 4 files changed, 1914 insertions(+)
 create mode 100644 drivers/usb/host/dwc2.c
 create mode 100644 drivers/usb/host/dwc2.h

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d2029bc7d7..b0f32faee9 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -21,6 +21,9 @@ config USB_OHCI_AT91
        depends on ARCH_AT91
        bool "AT91 OHCI driver"
 
+config USB_DWC2_HOST
+       bool "DWC2 Host driver"
+
 config USB_XHCI
        bool "xHCI driver"
        depends on HAS_DMA
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 0478d34272..fa042e9a54 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -3,5 +3,6 @@ obj-$(CONFIG_USB_EHCI_OMAP)     += ehci-omap.o
 obj-$(CONFIG_USB_EHCI_ATMEL)   += ehci-atmel.o
 obj-$(CONFIG_USB_OHCI)         += ohci-hcd.o
 obj-$(CONFIG_USB_OHCI_AT91)    += ohci-at91.o
+obj-$(CONFIG_USB_DWC2_HOST)    += dwc2.o
 obj-$(CONFIG_USB_XHCI)         += xhci-hcd.o xhci-hub.o
 obj-$(CONFIG_USB_XHCI_PCI)     += xhci-pci.o
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
new file mode 100644
index 0000000000..1df1149686
--- /dev/null
+++ b/drivers/usb/host/dwc2.c
@@ -0,0 +1,1132 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2012 Oleksandr Tymoshenko <go...@freebsd.org>
+ * Copyright (C) 2014 Marek Vasut <ma...@denx.de>
+ */
+
+#include <common.h>
+#include <usb/usb.h>
+#include <usb/usbroothubdes.h>
+#include <malloc.h>
+#include <init.h>
+#include <io.h>
+#include <of.h>
+#include <linux/iopoll.h>
+#include <dma.h>
+
+#include "dwc2.h"
+
+/* Use only HC channel 0. */
+#define DWC2_HC_CHANNEL                        0
+
+#define DWC2_STATUS_BUF_SIZE           64
+#define DWC2_DATA_BUF_SIZE             (16 * 1024)
+
+#define MAX_DEVICE                     16
+#define MAX_ENDPOINT                   16
+
+struct dwc2_priv {
+       struct device_d *dev;
+       struct usb_host host;
+       uint8_t *dmabuf;
+
+       u8 in_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
+       u8 out_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
+       struct dwc2_core_regs *regs;
+       int root_hub_devnum;
+       bool ext_vbus;
+       /*
+        * The hnp/srp capability must be disabled if the platform
+        * does't support hnp/srp. Otherwise the force mode can't work.
+        */
+       bool hnp_srp_disable;
+       bool oc_disable;
+};
+
+/*
+ * Initializes the FSLSPClkSel field of the HCFG register
+ * depending on the PHY type.
+ */
+static void init_fslspclksel(struct dwc2_priv *priv)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       uint32_t phyclk;
+
+       phyclk = DWC2_HCFG_FSLSPCLKSEL_48_MHZ;  /* Full speed PHY */
+
+       clrsetbits_le32(&regs->host_regs.hcfg,
+                       DWC2_HCFG_FSLSPCLKSEL_MASK,
+                       phyclk << DWC2_HCFG_FSLSPCLKSEL_OFFSET);
+}
+
+/*
+ * Flush a Tx FIFO.
+ *
+ * @param regs Programming view of DWC_otg controller.
+ * @param num Tx FIFO to flush.
+ */
+static void dwc_otg_flush_tx_fifo(struct dwc2_priv *priv, const int num)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct device_d *dev = priv->dev;
+       int ret;
+       uint32_t val;
+
+       writel(DWC2_GRSTCTL_TXFFLSH | (num << DWC2_GRSTCTL_TXFNUM_OFFSET),
+              &regs->grstctl);
+       ret = readl_poll_timeout(&regs->grstctl, val, !(val & 
DWC2_GRSTCTL_TXFFLSH),
+                                1000000);
+       if (ret)
+               dev_err(dev, "%s: Timeout!\n", __func__);
+
+       /* Wait for 3 PHY Clocks */
+       udelay(1);
+}
+
+/*
+ * Flush Rx FIFO.
+ *
+ * @param regs Programming view of DWC_otg controller.
+ */
+static void dwc_otg_flush_rx_fifo(struct dwc2_priv *priv)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct device_d *dev = priv->dev;
+       int ret;
+       uint32_t val;
+
+       writel(DWC2_GRSTCTL_RXFFLSH, &regs->grstctl);
+       ret = readl_poll_timeout(&regs->grstctl, val, !(val & 
DWC2_GRSTCTL_RXFFLSH),
+                                1000000);
+       if (ret)
+               dev_err(dev, "%s: Timeout!\n", __func__);
+
+       /* Wait for 3 PHY Clocks */
+       udelay(1);
+}
+
+/*
+ * Do core a soft reset of the core.  Be careful with this because it
+ * resets all the internal state machines of the core.
+ */
+static void dwc_otg_core_reset(struct dwc2_priv *priv)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct device_d *dev = priv->dev;
+       uint32_t val;
+       int ret;
+
+       /* Wait for AHB master IDLE state. */
+       ret = readl_poll_timeout(&regs->grstctl, val, val & 
DWC2_GRSTCTL_AHBIDLE,
+                                1000000);
+       if (ret)
+               dev_err(dev, "%s: Timeout!\n", __func__);
+
+       /* Core Soft Reset */
+       writel(DWC2_GRSTCTL_CSFTRST, &regs->grstctl);
+       ret = readl_poll_timeout(&regs->grstctl, val, !(val & 
DWC2_GRSTCTL_CSFTRST),
+                                1000000);
+       if (ret)
+               dev_err(dev, "%s: Timeout!\n", __func__);
+
+       /*
+        * Wait for core to come out of reset.
+        * NOTE: This long sleep is _very_ important, otherwise the core will
+        *       not stay in host mode after a connector ID change!
+        */
+       mdelay(100);
+}
+
+/*
+ * This function initializes the DWC_otg controller registers for
+ * host mode.
+ *
+ * This function flushes the Tx and Rx FIFOs and it flushes any entries in the
+ * request queues. Host channels are reset to ensure that they are ready for
+ * performing transfers.
+ *
+ * @param dev USB Device (NULL if driver model is not being used)
+ * @param regs Programming view of DWC_otg controller
+ *
+ */
+static void dwc_otg_core_host_init(struct dwc2_priv *priv)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct device_d *dev = priv->dev;
+       uint32_t nptxfifosize = 0;
+       uint32_t ptxfifosize = 0;
+       uint32_t hprt0 = 0;
+       uint32_t val;
+       int i, ret, num_channels;
+
+       /* Restart the Phy Clock */
+       writel(0, &regs->pcgcctl);
+
+       /* Initialize Host Configuration Register */
+       init_fslspclksel(priv);
+
+       /* Configure data FIFO sizes */
+       if (readl(&regs->ghwcfg2) & DWC2_HWCFG2_DYNAMIC_FIFO) {
+               /* Rx FIFO */
+               writel(CONFIG_DWC2_HOST_RX_FIFO_SIZE, &regs->grxfsiz);
+
+               /* Non-periodic Tx FIFO */
+               nptxfifosize |= CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE <<
+                               DWC2_FIFOSIZE_DEPTH_OFFSET;
+               nptxfifosize |= CONFIG_DWC2_HOST_RX_FIFO_SIZE <<
+                               DWC2_FIFOSIZE_STARTADDR_OFFSET;
+               writel(nptxfifosize, &regs->gnptxfsiz);
+
+               /* Periodic Tx FIFO */
+               ptxfifosize |= CONFIG_DWC2_HOST_PERIO_TX_FIFO_SIZE <<
+                               DWC2_FIFOSIZE_DEPTH_OFFSET;
+               ptxfifosize |= (CONFIG_DWC2_HOST_RX_FIFO_SIZE +
+                               CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE) <<
+                               DWC2_FIFOSIZE_STARTADDR_OFFSET;
+               writel(ptxfifosize, &regs->hptxfsiz);
+       }
+
+       /* Clear Host Set HNP Enable in the OTG Control Register */
+       clrbits_le32(&regs->gotgctl, DWC2_GOTGCTL_HSTSETHNPEN);
+
+       /* Make sure the FIFOs are flushed. */
+       dwc_otg_flush_tx_fifo(priv, 0x10);      /* All Tx FIFOs */
+       dwc_otg_flush_rx_fifo(priv);
+
+       /* Flush out any leftover queued requests. */
+       num_channels = readl(&regs->ghwcfg2);
+       num_channels &= DWC2_HWCFG2_NUM_HOST_CHAN_MASK;
+       num_channels >>= DWC2_HWCFG2_NUM_HOST_CHAN_OFFSET;
+       num_channels += 1;
+
+       for (i = 0; i < num_channels; i++)
+               clrsetbits_le32(&regs->hc_regs[i].hcchar,
+                               DWC2_HCCHAR_CHEN | DWC2_HCCHAR_EPDIR,
+                               DWC2_HCCHAR_CHDIS);
+
+       /* Halt all channels to put them into a known state. */
+       for (i = 0; i < num_channels; i++) {
+               clrsetbits_le32(&regs->hc_regs[i].hcchar,
+                               DWC2_HCCHAR_EPDIR,
+                               DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS);
+               ret = readl_poll_timeout(&regs->hc_regs[i].hcchar, val,
+                                !(val & DWC2_HCCHAR_CHEN),
+                                1000000);
+               if (ret)
+                       dev_err(dev, "%s: Timeout!\n", __func__);
+       }
+
+       /* Turn on the vbus power. */
+       if (readl(&regs->gintsts) & DWC2_GINTSTS_CURMODE_HOST) {
+               hprt0 = readl(&regs->hprt0);
+               hprt0 &= ~(DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET);
+               hprt0 &= ~(DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG);
+               if (!(hprt0 & DWC2_HPRT0_PRTPWR)) {
+                       hprt0 |= DWC2_HPRT0_PRTPWR;
+                       writel(hprt0, &regs->hprt0);
+               }
+       }
+}
+
+/*
+ * This function initializes the DWC_otg controller registers and
+ * prepares the core for device mode or host mode operation.
+ *
+ * @param regs Programming view of the DWC_otg controller
+ */
+static void dwc_otg_core_init(struct dwc2_priv *priv)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       uint32_t ahbcfg = 0;
+       uint32_t usbcfg = 0;
+       uint8_t brst_sz = 32;
+
+       /* Common Initialization */
+       usbcfg = readl(&regs->gusbcfg);
+
+       /* Program the ULPI External VBUS bit if needed */
+       if (priv->ext_vbus) {
+               usbcfg |= DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV;
+               if (!priv->oc_disable) {
+                       usbcfg |= DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR |
+                                 DWC2_GUSBCFG_INDICATOR_PASSTHROUGH;
+               }
+       } else {
+               usbcfg &= ~DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV;
+       }
+
+       /* Set external TS Dline pulsing */
+       usbcfg &= ~DWC2_GUSBCFG_TERM_SEL_DL_PULSE;
+       writel(usbcfg, &regs->gusbcfg);
+
+       /* Reset the Controller */
+       dwc_otg_core_reset(priv);
+
+       /* High speed PHY. */
+
+       /*
+        * HS PHY parameters. These parameters are preserved during
+        * soft reset so only program the first time. Do a soft reset
+        * immediately after setting phyif.
+        */
+       usbcfg &= ~(DWC2_GUSBCFG_ULPI_UTMI_SEL | DWC2_GUSBCFG_PHYIF);
+       usbcfg |= CONFIG_DWC2_PHY_TYPE << DWC2_GUSBCFG_ULPI_UTMI_SEL_OFFSET;
+
+       if (usbcfg & DWC2_GUSBCFG_ULPI_UTMI_SEL) /* ULPI interface */
+               usbcfg &= ~DWC2_GUSBCFG_DDRSEL;
+
+       writel(usbcfg, &regs->gusbcfg);
+
+       /* Reset after setting the PHY parameters */
+       dwc_otg_core_reset(priv);
+
+       usbcfg = readl(&regs->gusbcfg);
+       usbcfg &= ~(DWC2_GUSBCFG_ULPI_FSLS | DWC2_GUSBCFG_ULPI_CLK_SUS_M);
+
+       if (priv->hnp_srp_disable)
+               usbcfg |= DWC2_GUSBCFG_FORCEHOSTMODE;
+
+       writel(usbcfg, &regs->gusbcfg);
+
+       /* Program the GAHBCFG Register. */
+       switch (readl(&regs->ghwcfg2) & DWC2_HWCFG2_ARCHITECTURE_MASK) {
+       case DWC2_HWCFG2_ARCHITECTURE_SLAVE_ONLY:
+               break;
+       case DWC2_HWCFG2_ARCHITECTURE_EXT_DMA:
+               while (brst_sz > 1) {
+                       ahbcfg |= ahbcfg + (1 << DWC2_GAHBCFG_HBURSTLEN_OFFSET);
+                       ahbcfg &= DWC2_GAHBCFG_HBURSTLEN_MASK;
+                       brst_sz >>= 1;
+               }
+
+               ahbcfg |= DWC2_GAHBCFG_DMAENABLE;
+               break;
+
+       case DWC2_HWCFG2_ARCHITECTURE_INT_DMA:
+               ahbcfg |= DWC2_GAHBCFG_HBURSTLEN_INCR4;
+               ahbcfg |= DWC2_GAHBCFG_DMAENABLE;
+               break;
+       }
+
+       writel(ahbcfg, &regs->gahbcfg);
+
+       /* Program the capabilities in GUSBCFG Register */
+       usbcfg = 0;
+
+       if (!priv->hnp_srp_disable)
+               usbcfg |= DWC2_GUSBCFG_HNPCAP | DWC2_GUSBCFG_SRPCAP;
+
+       setbits_le32(&regs->gusbcfg, usbcfg);
+}
+
+/*
+ * Prepares a host channel for transferring packets to/from a specific
+ * endpoint. The HCCHARn register is set up with the characteristics specified
+ * in _hc. Host channel interrupts that may need to be serviced while this
+ * transfer is in progress are enabled.
+ *
+ * @param regs Programming view of DWC_otg controller
+ * @param hc Information needed to initialize the host channel
+ */
+static void dwc_otg_hc_init(struct dwc2_core_regs *regs, uint8_t hc_num,
+               struct usb_device *dev, uint8_t dev_addr, uint8_t ep_num,
+               uint8_t ep_is_in, uint8_t ep_type, uint16_t max_packet)
+{
+       struct dwc2_hc_regs *hc_regs = &regs->hc_regs[hc_num];
+       uint32_t hcchar = (dev_addr << DWC2_HCCHAR_DEVADDR_OFFSET) |
+                         (ep_num << DWC2_HCCHAR_EPNUM_OFFSET) |
+                         (ep_is_in << DWC2_HCCHAR_EPDIR_OFFSET) |
+                         (ep_type << DWC2_HCCHAR_EPTYPE_OFFSET) |
+                         (max_packet << DWC2_HCCHAR_MPS_OFFSET);
+
+       if (dev->speed == USB_SPEED_LOW)
+               hcchar |= DWC2_HCCHAR_LSPDDEV;
+
+       /*
+        * Program the HCCHARn register with the endpoint characteristics
+        * for the current transfer.
+        */
+       writel(hcchar, &hc_regs->hcchar);
+
+       /* Program the HCSPLIT register, default to no SPLIT */
+       writel(0, &hc_regs->hcsplt);
+}
+
+static void dwc_otg_hc_init_split(struct dwc2_hc_regs *hc_regs,
+                                 uint8_t hub_devnum, uint8_t hub_port)
+{
+       uint32_t hcsplt = 0;
+
+       hcsplt = DWC2_HCSPLT_SPLTENA;
+       hcsplt |= hub_devnum << DWC2_HCSPLT_HUBADDR_OFFSET;
+       hcsplt |= hub_port << DWC2_HCSPLT_PRTADDR_OFFSET;
+
+       /* Program the HCSPLIT register for SPLITs */
+       writel(hcsplt, &hc_regs->hcsplt);
+}
+
+/*
+ * DWC2 to USB API interface
+ */
+/* Direction: In ; Request: Status */
+static int dwc_otg_submit_rh_msg_in_status(struct dwc2_core_regs *regs,
+                                          struct usb_device *dev, void *buffer,
+                                          int txlen, struct devrequest *cmd)
+{
+       uint32_t hprt0 = 0;
+       uint32_t port_status = 0;
+       uint32_t port_change = 0;
+       int len = 0;
+       int stat = 0;
+
+       switch (cmd->requesttype & ~USB_DIR_IN) {
+       case 0:
+               *(uint16_t *)buffer = cpu_to_le16(1);
+               len = 2;
+               break;
+       case USB_RECIP_INTERFACE:
+       case USB_RECIP_ENDPOINT:
+               *(uint16_t *)buffer = cpu_to_le16(0);
+               len = 2;
+               break;
+       case USB_TYPE_CLASS:
+               *(uint32_t *)buffer = cpu_to_le32(0);
+               len = 4;
+               break;
+       case USB_RECIP_OTHER | USB_TYPE_CLASS:
+               hprt0 = readl(&regs->hprt0);
+               if (hprt0 & DWC2_HPRT0_PRTCONNSTS)
+                       port_status |= USB_PORT_STAT_CONNECTION;
+               if (hprt0 & DWC2_HPRT0_PRTENA)
+                       port_status |= USB_PORT_STAT_ENABLE;
+               if (hprt0 & DWC2_HPRT0_PRTSUSP)
+                       port_status |= USB_PORT_STAT_SUSPEND;
+               if (hprt0 & DWC2_HPRT0_PRTOVRCURRACT)
+                       port_status |= USB_PORT_STAT_OVERCURRENT;
+               if (hprt0 & DWC2_HPRT0_PRTRST)
+                       port_status |= USB_PORT_STAT_RESET;
+               if (hprt0 & DWC2_HPRT0_PRTPWR)
+                       port_status |= USB_PORT_STAT_POWER;
+
+               if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_LOW)
+                       port_status |= USB_PORT_STAT_LOW_SPEED;
+               else if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) ==
+                        DWC2_HPRT0_PRTSPD_HIGH)
+                       port_status |= USB_PORT_STAT_HIGH_SPEED;
+
+               if (hprt0 & DWC2_HPRT0_PRTENCHNG)
+                       port_change |= USB_PORT_STAT_C_ENABLE;
+               if (hprt0 & DWC2_HPRT0_PRTCONNDET)
+                       port_change |= USB_PORT_STAT_C_CONNECTION;
+               if (hprt0 & DWC2_HPRT0_PRTOVRCURRCHNG)
+                       port_change |= USB_PORT_STAT_C_OVERCURRENT;
+
+               *(uint32_t *)buffer = cpu_to_le32(port_status |
+                                       (port_change << 16));
+               len = 4;
+               break;
+       default:
+               pr_err("%s: unsupported root hub command\n", __func__);
+               stat = USB_ST_STALLED;
+       }
+
+       dev->act_len = min(len, txlen);
+       dev->status = stat;
+
+       return stat;
+}
+
+/* Direction: In ; Request: Descriptor */
+static int dwc_otg_submit_rh_msg_in_descriptor(struct usb_device *dev,
+                                              void *buffer, int txlen,
+                                              struct devrequest *cmd)
+{
+       unsigned char data[32];
+       uint32_t dsc;
+       int len = 0;
+       int stat = 0;
+       uint16_t wValue = cpu_to_le16(cmd->value);
+       uint16_t wLength = cpu_to_le16(cmd->length);
+
+       switch (cmd->requesttype & ~USB_DIR_IN) {
+       case 0:
+               switch (wValue & 0xff00) {
+               case 0x0100:    /* device descriptor */
+                       len = min3(txlen, (int)sizeof(root_hub_dev_des), 
(int)wLength);
+                       memcpy(buffer, root_hub_dev_des, len);
+                       break;
+               case 0x0200:    /* configuration descriptor */
+                       len = min3(txlen, (int)sizeof(root_hub_config_des), 
(int)wLength);
+                       memcpy(buffer, root_hub_config_des, len);
+                       break;
+               case 0x0300:    /* string descriptors */
+                       switch (wValue & 0xff) {
+                       case 0x00:
+                               len = min3(txlen, 
(int)sizeof(root_hub_str_index0),
+                                          (int)wLength);
+                               memcpy(buffer, root_hub_str_index0, len);
+                               break;
+                       case 0x01:
+                               len = min3(txlen, 
(int)sizeof(root_hub_str_index1),
+                                          (int)wLength);
+                               memcpy(buffer, root_hub_str_index1, len);
+                               break;
+                       }
+                       break;
+               default:
+                       stat = USB_ST_STALLED;
+               }
+               break;
+
+       case USB_TYPE_CLASS:
+               /* Root port config, set 1 port and nothing else. */
+               dsc = 0x00000001;
+
+               data[0] = 9;            /* min length; */
+               data[1] = 0x29;
+               data[2] = dsc & RH_A_NDP;
+               data[3] = 0;
+               if (dsc & RH_A_PSM)
+                       data[3] |= 0x1;
+               if (dsc & RH_A_NOCP)
+                       data[3] |= 0x10;
+               else if (dsc & RH_A_OCPM)
+                       data[3] |= 0x8;
+
+               /* corresponds to data[4-7] */
+               data[5] = (dsc & RH_A_POTPGT) >> 24;
+               data[7] = dsc & RH_B_DR;
+               if (data[2] < 7) {
+                       data[8] = 0xff;
+               } else {
+                       data[0] += 2;
+                       data[8] = (dsc & RH_B_DR) >> 8;
+                       data[9] = 0xff;
+                       data[10] = data[9];
+               }
+
+               len = min3(txlen, (int)data[0], (int)wLength);
+               memcpy(buffer, data, len);
+               break;
+       default:
+               pr_err("%s: unsupported root hub command\n", __func__);
+               stat = USB_ST_STALLED;
+       }
+
+       dev->act_len = min(len, txlen);
+       dev->status = stat;
+
+       return stat;
+}
+
+/* Direction: In ; Request: Configuration */
+static int dwc_otg_submit_rh_msg_in_configuration(struct usb_device *dev,
+                                                 void *buffer, int txlen,
+                                                 struct devrequest *cmd)
+{
+       int len = 0;
+       int stat = 0;
+
+       switch (cmd->requesttype & ~USB_DIR_IN) {
+       case 0:
+               *(uint8_t *)buffer = 0x01;
+               len = 1;
+               break;
+       default:
+               pr_err("%s: unsupported root hub command\n", __func__);
+               stat = USB_ST_STALLED;
+       }
+
+       dev->act_len = min(len, txlen);
+       dev->status = stat;
+
+       return stat;
+}
+
+/* Direction: In */
+static int dwc_otg_submit_rh_msg_in(struct dwc2_priv *priv,
+                                   struct usb_device *dev, void *buffer,
+                                   int txlen, struct devrequest *cmd)
+{
+       switch (cmd->request) {
+       case USB_REQ_GET_STATUS:
+               return dwc_otg_submit_rh_msg_in_status(priv->regs, dev, buffer,
+                                                      txlen, cmd);
+       case USB_REQ_GET_DESCRIPTOR:
+               return dwc_otg_submit_rh_msg_in_descriptor(dev, buffer,
+                                                          txlen, cmd);
+       case USB_REQ_GET_CONFIGURATION:
+               return dwc_otg_submit_rh_msg_in_configuration(dev, buffer,
+                                                             txlen, cmd);
+       default:
+               pr_err("%s: unsupported root hub command\n", __func__);
+               return USB_ST_STALLED;
+       }
+}
+
+/* Direction: Out */
+static int dwc_otg_submit_rh_msg_out(struct dwc2_priv *priv,
+                                    struct usb_device *dev,
+                                    void *buffer, int txlen,
+                                    struct devrequest *cmd)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       int len = 0;
+       int stat = 0;
+       uint16_t bmrtype_breq = cmd->requesttype | (cmd->request << 8);
+       uint16_t wValue = cpu_to_le16(cmd->value);
+
+       switch (bmrtype_breq & ~USB_DIR_IN) {
+       case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_ENDPOINT:
+       case (USB_REQ_CLEAR_FEATURE << 8) | USB_TYPE_CLASS:
+               break;
+
+       case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS:
+               switch (wValue) {
+               case USB_PORT_FEAT_C_CONNECTION:
+                       setbits_le32(&regs->hprt0, DWC2_HPRT0_PRTCONNDET);
+                       break;
+               }
+               break;
+
+       case (USB_REQ_SET_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS:
+               switch (wValue) {
+               case USB_PORT_FEAT_SUSPEND:
+                       break;
+
+               case USB_PORT_FEAT_RESET:
+                       clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
+                                       DWC2_HPRT0_PRTCONNDET |
+                                       DWC2_HPRT0_PRTENCHNG |
+                                       DWC2_HPRT0_PRTOVRCURRCHNG,
+                                       DWC2_HPRT0_PRTRST);
+                       mdelay(50);
+                       clrbits_le32(&regs->hprt0, DWC2_HPRT0_PRTRST);
+                       break;
+
+               case USB_PORT_FEAT_POWER:
+                       clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
+                                       DWC2_HPRT0_PRTCONNDET |
+                                       DWC2_HPRT0_PRTENCHNG |
+                                       DWC2_HPRT0_PRTOVRCURRCHNG,
+                                       DWC2_HPRT0_PRTRST);
+                       break;
+
+               case USB_PORT_FEAT_ENABLE:
+                       break;
+               }
+               break;
+       case (USB_REQ_SET_ADDRESS << 8):
+               priv->root_hub_devnum = wValue;
+               break;
+       case (USB_REQ_SET_CONFIGURATION << 8):
+               break;
+       default:
+               pr_err("%s: unsupported root hub command\n", __func__);
+               stat = USB_ST_STALLED;
+       }
+
+       len = min(len, txlen);
+
+       dev->act_len = len;
+       dev->status = stat;
+
+       return stat;
+}
+
+static int dwc_otg_submit_rh_msg(struct dwc2_priv *priv, struct usb_device 
*dev,
+                                unsigned long pipe, void *buffer, int txlen,
+                                struct devrequest *cmd)
+{
+       int stat = 0;
+
+       if (usb_pipeint(pipe)) {
+               pr_err("Root-Hub submit IRQ: NOT implemented\n");
+               return 0;
+       }
+
+       if (cmd->requesttype & USB_DIR_IN)
+               stat = dwc_otg_submit_rh_msg_in(priv, dev, buffer, txlen, cmd);
+       else
+               stat = dwc_otg_submit_rh_msg_out(priv, dev, buffer, txlen, cmd);
+
+       mdelay(1);
+
+       return stat;
+}
+
+static int wait_for_chhltd(struct dwc2_priv *priv, uint32_t *sub,
+                          u8 *toggle, int timeout_ms)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
+       struct device_d *dev = priv->dev;
+       int ret;
+       uint32_t hcint, hctsiz;
+       uint32_t val;
+       int timeout_us = timeout_ms * 1000;
+
+       ret = readl_poll_timeout(&hc_regs->hcint, val,
+                                val & DWC2_HCINT_CHHLTD, timeout_us);
+       if (ret) {
+               clrsetbits_le32(&hc_regs->hcchar, 0, DWC2_HCCHAR_CHDIS);
+               readl_poll_timeout(&hc_regs->hcint, val,
+                                        val & DWC2_HCINT_CHHLTD, 10000);
+
+               return ret;
+       }
+
+       hcint = readl(&hc_regs->hcint);
+       hctsiz = readl(&hc_regs->hctsiz);
+       *sub = (hctsiz & DWC2_HCTSIZ_XFERSIZE_MASK) >>
+               DWC2_HCTSIZ_XFERSIZE_OFFSET;
+       *toggle = (hctsiz & DWC2_HCTSIZ_PID_MASK) >> DWC2_HCTSIZ_PID_OFFSET;
+
+       dev_dbg(dev, "%s: HCINT=%08x sub=%u toggle=%d\n", __func__, hcint, *sub,
+             *toggle);
+
+       if (hcint & DWC2_HCINT_XFERCOMP)
+               return 0;
+
+       if (hcint & (DWC2_HCINT_NAK | DWC2_HCINT_FRMOVRUN))
+               return -EAGAIN;
+
+       dev_dbg(dev, "%s: Error (HCINT=%08x)\n", __func__, hcint);
+
+       return -EINVAL;
+}
+
+static int dwc2_eptype[] = {
+       DWC2_HCCHAR_EPTYPE_ISOC,
+       DWC2_HCCHAR_EPTYPE_INTR,
+       DWC2_HCCHAR_EPTYPE_CONTROL,
+       DWC2_HCCHAR_EPTYPE_BULK,
+};
+
+static int transfer_chunk(struct dwc2_priv *priv, u8 *pid, int in, void 
*buffer,
+                         int num_packets, int xfer_len, int *actual_len,
+                         int odd_frame, int timeout_ms)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
+       int ret = 0;
+       uint32_t sub = 0;
+       enum dma_data_direction dir;
+       dma_addr_t dma = 0;
+
+       dev_dbg(priv->dev, "%s: chunk: pid %d xfer_len %u pkts %u\n",
+               __func__, *pid, xfer_len, num_packets);
+
+       writel((xfer_len << DWC2_HCTSIZ_XFERSIZE_OFFSET) |
+              (num_packets << DWC2_HCTSIZ_PKTCNT_OFFSET) |
+              (*pid << DWC2_HCTSIZ_PID_OFFSET),
+              &hc_regs->hctsiz);
+
+       if (xfer_len) {
+               if (in) {
+                       dir = DMA_FROM_DEVICE;
+               } else {
+                       memcpy(priv->dmabuf, buffer, xfer_len);
+                       dir = DMA_TO_DEVICE;
+               }
+               dma = dma_map_single(priv->dev, priv->dmabuf, xfer_len, dir);
+       }
+
+       writel(dma, &hc_regs->hcdma);
+
+       /* Clear old interrupt conditions for this host channel. */
+       writel(0x3fff, &hc_regs->hcint);
+
+       /* Set host channel enable after all other setup is complete. */
+       clrsetbits_le32(&hc_regs->hcchar, DWC2_HCCHAR_MULTICNT_MASK |
+                       DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS |
+                       DWC2_HCCHAR_ODDFRM,
+                       (1 << DWC2_HCCHAR_MULTICNT_OFFSET) |
+                       (odd_frame << DWC2_HCCHAR_ODDFRM_OFFSET) |
+                       DWC2_HCCHAR_CHEN);
+
+       ret = wait_for_chhltd(priv, &sub, pid, timeout_ms);
+
+       if (xfer_len)
+               dma_unmap_single(priv->dev, dma, xfer_len, dir);
+
+       if (in) {
+               xfer_len -= sub;
+
+               memcpy(buffer, priv->dmabuf, xfer_len);
+       }
+
+       if (!ret)
+               *actual_len = xfer_len;
+
+       return ret;
+}
+
+static int usb_find_usb2_hub_address_port(struct usb_device *udev,
+                               uint8_t *hub_address, uint8_t *hub_port)
+{
+       /* Find out the nearest parent which is high speed */
+       while (udev->parent->parent) {
+               if (udev->parent->speed != USB_SPEED_HIGH) {
+                       udev = udev->parent;
+               } else {
+                       *hub_address = udev->parent->devnum;
+                       *hub_port = udev->portnr;
+                       return 0;
+               }
+       }
+
+       return -EINVAL;
+}
+
+static int chunk_msg(struct dwc2_priv *priv, struct usb_device *dev,
+             unsigned long pipe, u8 *pid, int in, void *buffer, int len,
+             int timeout_ms)
+{
+       struct dwc2_core_regs *regs = priv->regs;
+       struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
+       struct dwc2_host_regs *host_regs = &regs->host_regs;
+       int devnum = usb_pipedevice(pipe);
+       int ep = usb_pipeendpoint(pipe);
+       int max = usb_maxpacket(dev, pipe);
+       int eptype = dwc2_eptype[usb_pipetype(pipe)];
+       int done = 0;
+       int ret = 0;
+       int do_split = 0;
+       int complete_split = 0;
+       uint32_t xfer_len;
+       uint32_t num_packets;
+       int stop_transfer = 0;
+       uint32_t max_xfer_len;
+       int ssplit_frame_num = 0;
+
+       dev_dbg(priv->dev, "%s: msg: pipe %lx pid %d in %d len %d\n",
+               __func__, pipe, *pid, in, len);
+
+       max_xfer_len = CONFIG_DWC2_MAX_PACKET_COUNT * max;
+       if (max_xfer_len > CONFIG_DWC2_MAX_TRANSFER_SIZE)
+               max_xfer_len = CONFIG_DWC2_MAX_TRANSFER_SIZE;
+       if (max_xfer_len > DWC2_DATA_BUF_SIZE)
+               max_xfer_len = DWC2_DATA_BUF_SIZE;
+
+       /* Make sure that max_xfer_len is a multiple of max packet size. */
+       num_packets = max_xfer_len / max;
+       max_xfer_len = num_packets * max;
+
+       /* Initialize channel */
+       dwc_otg_hc_init(regs, DWC2_HC_CHANNEL, dev, devnum, ep, in,
+                       eptype, max);
+
+       /* Check if the target is a FS/LS device behind a HS hub */
+       if (dev->speed != USB_SPEED_HIGH) {
+               uint8_t hub_addr;
+               uint8_t hub_port;
+               uint32_t hprt0 = readl(&regs->hprt0);
+
+               if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_HIGH) 
{
+                       ret = usb_find_usb2_hub_address_port(dev, &hub_addr,
+                                                      &hub_port);
+                       if (ret)
+                               return ret;
+                       dwc_otg_hc_init_split(hc_regs, hub_addr, hub_port);
+
+                       do_split = 1;
+                       num_packets = 1;
+                       max_xfer_len = max;
+               }
+       }
+
+       do {
+               int actual_len = 0;
+               uint32_t hcint;
+               int odd_frame = 0;
+               xfer_len = len - done;
+
+               if (xfer_len > max_xfer_len)
+                       xfer_len = max_xfer_len;
+               else if (xfer_len > max)
+                       num_packets = (xfer_len + max - 1) / max;
+               else
+                       num_packets = 1;
+
+               if (complete_split)
+                       setbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT);
+               else if (do_split)
+                       clrbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT);
+
+               if (eptype == DWC2_HCCHAR_EPTYPE_INTR) {
+                       int uframe_num = readl(&host_regs->hfnum);
+                       if (!(uframe_num & 0x1))
+                               odd_frame = 1;
+               }
+
+               ret = transfer_chunk(priv, pid, in, (char *)buffer + done,
+                                    num_packets, xfer_len, &actual_len,
+                                    odd_frame, timeout_ms);
+
+               hcint = readl(&hc_regs->hcint);
+               if (complete_split) {
+                       stop_transfer = 0;
+                       if (hcint & DWC2_HCINT_NYET) {
+                               int frame_num = DWC2_HFNUM_MAX_FRNUM &
+                                               readl(&host_regs->hfnum);
+                               ret = 0;
+                               if (((frame_num - ssplit_frame_num) &
+                                   DWC2_HFNUM_MAX_FRNUM) > 4)
+                                       ret = -EAGAIN;
+                       } else
+                               complete_split = 0;
+               } else if (do_split) {
+                       if (hcint & DWC2_HCINT_ACK) {
+                               ssplit_frame_num = DWC2_HFNUM_MAX_FRNUM &
+                                                  readl(&host_regs->hfnum);
+                               ret = 0;
+                               complete_split = 1;
+                       }
+               }
+
+               if (ret)
+                       break;
+
+               if (actual_len < xfer_len)
+                       stop_transfer = 1;
+
+               done += actual_len;
+
+       /*
+        * Transactions are done when when either all data is transferred or
+        * there is a short transfer. In case of a SPLIT make sure the CSPLIT
+        * is executed.
+        */
+       } while (((done < len) && !stop_transfer) || complete_split);
+
+       writel(0, &hc_regs->hcintmsk);
+       writel(0xFFFFFFFF, &hc_regs->hcint);
+
+       dev->status = 0;
+       dev->act_len = done;
+
+       return ret;
+}
+
+#define to_dwc2(ptr) container_of(ptr, struct dwc2_priv, host)
+
+static int dwc2_init_common(struct usb_host *host)
+{
+       struct dwc2_priv *priv = to_dwc2(host);
+       struct dwc2_core_regs *regs = priv->regs;
+       int i, j;
+
+       priv->ext_vbus = 0;
+
+       dwc_otg_core_init(priv);
+       dwc_otg_core_host_init(priv);
+
+       clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
+                       DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG |
+                       DWC2_HPRT0_PRTOVRCURRCHNG,
+                       DWC2_HPRT0_PRTRST);
+       mdelay(50);
+       clrbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET |
+                    DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG |
+                    DWC2_HPRT0_PRTRST);
+
+       for (i = 0; i < MAX_DEVICE; i++) {
+               for (j = 0; j < MAX_ENDPOINT; j++) {
+                       priv->in_data_toggle[i][j] = DWC2_HC_PID_DATA0;
+                       priv->out_data_toggle[i][j] = DWC2_HC_PID_DATA0;
+               }
+       }
+
+       return 0;
+}
+
+static void dwc2_uninit_common(struct dwc2_core_regs *regs)
+{
+       /* Put everything in reset. */
+       clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
+                       DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG |
+                       DWC2_HPRT0_PRTOVRCURRCHNG,
+                       DWC2_HPRT0_PRTRST);
+}
+
+static int dwc2_submit_control_msg(struct usb_device *udev,
+                                  unsigned long pipe, void *buffer, int len,
+                                  struct devrequest *setup, int timeout_ms)
+{
+       struct usb_host *host = udev->host;
+       struct dwc2_priv *priv = to_dwc2(host);
+       int devnum = usb_pipedevice(pipe);
+       int ret, act_len;
+       u8 pid;
+       /* For CONTROL endpoint pid should start with DATA1 */
+       int status_direction;
+
+       if (devnum == priv->root_hub_devnum) {
+               udev->status = 0;
+               udev->speed = USB_SPEED_HIGH;
+               return dwc_otg_submit_rh_msg(priv, udev, pipe, buffer, len,
+                                            setup);
+       }
+
+       /* SETUP stage */
+       pid = DWC2_HC_PID_SETUP;
+       do {
+               ret = chunk_msg(priv, udev, pipe, &pid, 0, setup, 8, 
timeout_ms);
+       } while (ret == -EAGAIN);
+
+       if (ret)
+               return ret;
+
+       /* DATA stage */
+       act_len = 0;
+       if (buffer) {
+               pid = DWC2_HC_PID_DATA1;
+               do {
+                       ret = chunk_msg(priv, udev, pipe, &pid, 
usb_pipein(pipe),
+                                       buffer, len, timeout_ms);
+                       act_len += udev->act_len;
+                       buffer += udev->act_len;
+                       len -= udev->act_len;
+               } while (ret == -EAGAIN);
+               if (ret)
+                       return ret;
+               status_direction = usb_pipeout(pipe);
+       } else {
+               /* No-data CONTROL always ends with an IN transaction */
+               status_direction = 1;
+       }
+
+       /* STATUS stage */
+       pid = DWC2_HC_PID_DATA1;
+       do {
+               ret = chunk_msg(priv, udev, pipe, &pid, status_direction,
+                               NULL, 0, timeout_ms);
+       } while (ret == -EAGAIN);
+
+       if (ret)
+               return ret;
+
+       udev->act_len = act_len;
+
+       return 0;
+}
+
+static int dwc2_submit_bulk_msg(struct usb_device *udev, unsigned long pipe,
+                               void *buffer, int len, int timeout_ms)
+{
+       struct usb_host *host = udev->host;
+       struct dwc2_priv *priv = to_dwc2(host);
+       int devnum = usb_pipedevice(pipe);
+       int ep = usb_pipeendpoint(pipe);
+       u8* pid;
+
+       if ((devnum >= MAX_DEVICE) || (devnum == priv->root_hub_devnum)) {
+               udev->status = 0;
+               return -EINVAL;
+       }
+
+       if (usb_pipein(pipe))
+               pid = &priv->in_data_toggle[devnum][ep];
+       else
+               pid = &priv->out_data_toggle[devnum][ep];
+
+       return chunk_msg(priv, udev, pipe, pid, usb_pipein(pipe), buffer, len,
+                        timeout_ms);
+}
+
+static int dwc2_submit_int_msg(struct usb_device *udev, unsigned long pipe,
+                              void *buffer, int len, int interval)
+{
+       uint64_t start;
+       int ret;
+
+       start = get_time_ns();
+
+       while (1) {
+               ret = dwc2_submit_bulk_msg(udev, pipe, buffer, len, 0);
+               if (ret != -EAGAIN)
+                       return ret;
+               if (is_timeout(start, USB_CNTL_TIMEOUT * MSECOND))
+                       return -ETIMEDOUT;
+       }
+}
+
+static int dwc2_detect(struct device_d *dev)
+{
+       struct dwc2_priv *priv = dev->priv;
+
+        return usb_host_detect(&priv->host);
+}
+
+static int dwc2_probe(struct device_d *dev)
+{
+       struct resource *iores;
+       struct dwc2_priv *priv;
+       struct usb_host *host;
+       struct device_node *np = dev->device_node;
+       int ret;
+       uint32_t snpsid;
+
+       priv = xzalloc(sizeof(*priv));
+
+       iores = dev_request_mem_resource(dev, 0);
+       if (IS_ERR(iores))
+               return PTR_ERR(iores);
+
+       priv->regs = IOMEM(iores->start);
+       priv->dev = dev;
+
+       snpsid = readl(&priv->regs->gsnpsid);
+       dev_info(dev, "Core Release: %x.%03x\n",
+                snpsid >> 12 & 0xf, snpsid & 0xfff);
+
+       if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx &&
+           (snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_3xx) {
+               dev_info(dev, "SNPSID invalid (not DWC2 OTG device): %08x\n",
+                        snpsid);
+               return -ENODEV;
+       }
+
+       priv->oc_disable = of_property_read_bool(np, "disable-over-current");
+       priv->hnp_srp_disable = of_property_read_bool(np, "hnp-srp-disable");
+       priv->dmabuf = dma_alloc(DWC2_DATA_BUF_SIZE);
+
+       host = &priv->host;
+
+       host->init = dwc2_init_common;
+       host->submit_int_msg = dwc2_submit_int_msg;
+       host->submit_control_msg = dwc2_submit_control_msg;
+       host->submit_bulk_msg = dwc2_submit_bulk_msg;
+
+       dev->priv = priv;
+       dev->detect = dwc2_detect;
+
+       ret = usb_register_host(host);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static void dwc2_remove(struct device_d *dev)
+{
+       struct dwc2_priv *priv = dev->priv;
+
+       dwc2_uninit_common(priv->regs);
+}
+
+static const struct of_device_id dwc2_dt_ids[] = {
+       { .compatible = "brcm,bcm2835-usb" },
+       { .compatible = "brcm,bcm2708-usb" },
+       { .compatible = "snps,dwc2" },
+       { /* sentinel */ }
+};
+
+static struct driver_d dwc2_driver = {
+       .name = "dwc2",
+       .probe = dwc2_probe,
+       .remove = dwc2_remove,
+       .of_compatible = DRV_OF_COMPAT(dwc2_dt_ids),
+};
+device_platform_driver(dwc2_driver);
diff --git a/drivers/usb/host/dwc2.h b/drivers/usb/host/dwc2.h
new file mode 100644
index 0000000000..bdf338f1ed
--- /dev/null
+++ b/drivers/usb/host/dwc2.h
@@ -0,0 +1,778 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2014 Marek Vasut <ma...@denx.de>
+ */
+
+#ifndef __DWC2_H__
+#define __DWC2_H__
+
+struct dwc2_hc_regs {
+       u32                     hcchar;         /* 0x00 */
+       u32                     hcsplt;
+       u32                     hcint;
+       u32                     hcintmsk;
+       u32                     hctsiz;         /* 0x10 */
+       u32                     hcdma;
+       u32                     reserved;
+       u32                     hcdmab;
+};
+
+struct dwc2_host_regs {
+       u32                     hcfg;           /* 0x00 */
+       u32                     hfir;
+       u32                     hfnum;
+       u32                     _pad_0x40c;
+       u32                     hptxsts;        /* 0x10 */
+       u32                     haint;
+       u32                     haintmsk;
+       u32                     hflbaddr;
+};
+
+struct dwc2_core_regs {
+       u32                     gotgctl;        /* 0x000 */
+       u32                     gotgint;
+       u32                     gahbcfg;
+       u32                     gusbcfg;
+       u32                     grstctl;        /* 0x010 */
+       u32                     gintsts;
+       u32                     gintmsk;
+       u32                     grxstsr;
+       u32                     grxstsp;        /* 0x020 */
+       u32                     grxfsiz;
+       u32                     gnptxfsiz;
+       u32                     gnptxsts;
+       u32                     gi2cctl;        /* 0x030 */
+       u32                     gpvndctl;
+       u32                     ggpio;
+       u32                     guid;
+       u32                     gsnpsid;        /* 0x040 */
+       u32                     ghwcfg1;
+       u32                     ghwcfg2;
+       u32                     ghwcfg3;
+       u32                     ghwcfg4;        /* 0x050 */
+       u32                     glpmcfg;
+       u32                     _pad_0x58_0x9c[42];
+       u32                     hptxfsiz;       /* 0x100 */
+       u32                     dptxfsiz_dieptxf[15];
+       u32                     _pad_0x140_0x3fc[176];
+       struct dwc2_host_regs   host_regs;      /* 0x400 */
+       u32                     _pad_0x420_0x43c[8];
+       u32                     hprt0;          /* 0x440 */
+       u32                     _pad_0x444_0x4fc[47];
+       struct dwc2_hc_regs     hc_regs[16];    /* 0x500 */
+       u32                     _pad_0x700_0xe00[448];
+       u32                     pcgcctl;        /* 0xe00 */
+};
+
+#define DWC2_GOTGCTL_SESREQSCS                         (1 << 0)
+#define DWC2_GOTGCTL_SESREQSCS_OFFSET                  0
+#define DWC2_GOTGCTL_SESREQ                            (1 << 1)
+#define DWC2_GOTGCTL_SESREQ_OFFSET                     1
+#define DWC2_GOTGCTL_HSTNEGSCS                         (1 << 8)
+#define DWC2_GOTGCTL_HSTNEGSCS_OFFSET                  8
+#define DWC2_GOTGCTL_HNPREQ                            (1 << 9)
+#define DWC2_GOTGCTL_HNPREQ_OFFSET                     9
+#define DWC2_GOTGCTL_HSTSETHNPEN                       (1 << 10)
+#define DWC2_GOTGCTL_HSTSETHNPEN_OFFSET                        10
+#define DWC2_GOTGCTL_DEVHNPEN                          (1 << 11)
+#define DWC2_GOTGCTL_DEVHNPEN_OFFSET                   11
+#define DWC2_GOTGCTL_CONIDSTS                          (1 << 16)
+#define DWC2_GOTGCTL_CONIDSTS_OFFSET                   16
+#define DWC2_GOTGCTL_DBNCTIME                          (1 << 17)
+#define DWC2_GOTGCTL_DBNCTIME_OFFSET                   17
+#define DWC2_GOTGCTL_ASESVLD                           (1 << 18)
+#define DWC2_GOTGCTL_ASESVLD_OFFSET                    18
+#define DWC2_GOTGCTL_BSESVLD                           (1 << 19)
+#define DWC2_GOTGCTL_BSESVLD_OFFSET                    19
+#define DWC2_GOTGCTL_OTGVER                            (1 << 20)
+#define DWC2_GOTGCTL_OTGVER_OFFSET                     20
+#define DWC2_GOTGINT_SESENDDET                         (1 << 2)
+#define DWC2_GOTGINT_SESENDDET_OFFSET                  2
+#define DWC2_GOTGINT_SESREQSUCSTSCHNG                  (1 << 8)
+#define DWC2_GOTGINT_SESREQSUCSTSCHNG_OFFSET           8
+#define DWC2_GOTGINT_HSTNEGSUCSTSCHNG                  (1 << 9)
+#define DWC2_GOTGINT_HSTNEGSUCSTSCHNG_OFFSET           9
+#define DWC2_GOTGINT_RESERVER10_16_MASK                        (0x7F << 10)
+#define DWC2_GOTGINT_RESERVER10_16_OFFSET              10
+#define DWC2_GOTGINT_HSTNEGDET                         (1 << 17)
+#define DWC2_GOTGINT_HSTNEGDET_OFFSET                  17
+#define DWC2_GOTGINT_ADEVTOUTCHNG                      (1 << 18)
+#define DWC2_GOTGINT_ADEVTOUTCHNG_OFFSET               18
+#define DWC2_GOTGINT_DEBDONE                           (1 << 19)
+#define DWC2_GOTGINT_DEBDONE_OFFSET                    19
+#define DWC2_GAHBCFG_GLBLINTRMSK                       (1 << 0)
+#define DWC2_GAHBCFG_GLBLINTRMSK_OFFSET                        0
+#define DWC2_GAHBCFG_HBURSTLEN_SINGLE                  (0 << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_INCR                    (1 << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_INCR4                   (3 << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_INCR8                   (5 << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_INCR16                  (7 << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_MASK                    (0xF << 1)
+#define DWC2_GAHBCFG_HBURSTLEN_OFFSET                  1
+#define DWC2_GAHBCFG_DMAENABLE                         (1 << 5)
+#define DWC2_GAHBCFG_DMAENABLE_OFFSET                  5
+#define DWC2_GAHBCFG_NPTXFEMPLVL_TXFEMPLVL             (1 << 7)
+#define DWC2_GAHBCFG_NPTXFEMPLVL_TXFEMPLVL_OFFSET      7
+#define DWC2_GAHBCFG_PTXFEMPLVL                                (1 << 8)
+#define DWC2_GAHBCFG_PTXFEMPLVL_OFFSET                 8
+#define DWC2_GUSBCFG_TOUTCAL_MASK                      (0x7 << 0)
+#define DWC2_GUSBCFG_TOUTCAL_OFFSET                    0
+#define DWC2_GUSBCFG_PHYIF                             (1 << 3)
+#define DWC2_GUSBCFG_PHYIF_OFFSET                      3
+#define DWC2_GUSBCFG_ULPI_UTMI_SEL                     (1 << 4)
+#define DWC2_GUSBCFG_ULPI_UTMI_SEL_OFFSET              4
+#define DWC2_GUSBCFG_FSINTF                            (1 << 5)
+#define DWC2_GUSBCFG_FSINTF_OFFSET                     5
+#define DWC2_GUSBCFG_PHYSEL                            (1 << 6)
+#define DWC2_GUSBCFG_PHYSEL_OFFSET                     6
+#define DWC2_GUSBCFG_DDRSEL                            (1 << 7)
+#define DWC2_GUSBCFG_DDRSEL_OFFSET                     7
+#define DWC2_GUSBCFG_SRPCAP                            (1 << 8)
+#define DWC2_GUSBCFG_SRPCAP_OFFSET                     8
+#define DWC2_GUSBCFG_HNPCAP                            (1 << 9)
+#define DWC2_GUSBCFG_HNPCAP_OFFSET                     9
+#define DWC2_GUSBCFG_USBTRDTIM_MASK                    (0xF << 10)
+#define DWC2_GUSBCFG_USBTRDTIM_OFFSET                  10
+#define DWC2_GUSBCFG_NPTXFRWNDEN                       (1 << 14)
+#define DWC2_GUSBCFG_NPTXFRWNDEN_OFFSET                        14
+#define DWC2_GUSBCFG_PHYLPWRCLKSEL                     (1 << 15)
+#define DWC2_GUSBCFG_PHYLPWRCLKSEL_OFFSET              15
+#define DWC2_GUSBCFG_OTGUTMIFSSEL                      (1 << 16)
+#define DWC2_GUSBCFG_OTGUTMIFSSEL_OFFSET               16
+#define DWC2_GUSBCFG_ULPI_FSLS                         (1 << 17)
+#define DWC2_GUSBCFG_ULPI_FSLS_OFFSET                  17
+#define DWC2_GUSBCFG_ULPI_AUTO_RES                     (1 << 18)
+#define DWC2_GUSBCFG_ULPI_AUTO_RES_OFFSET              18
+#define DWC2_GUSBCFG_ULPI_CLK_SUS_M                    (1 << 19)
+#define DWC2_GUSBCFG_ULPI_CLK_SUS_M_OFFSET             19
+#define DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV                 (1 << 20)
+#define DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV_OFFSET          20
+#define DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR           (1 << 21)
+#define DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR_OFFSET    21
+#define DWC2_GUSBCFG_TERM_SEL_DL_PULSE                 (1 << 22)
+#define DWC2_GUSBCFG_TERM_SEL_DL_PULSE_OFFSET          22
+#define DWC2_GUSBCFG_INDICATOR_PASSTHROUGH             (1 << 24)
+#define DWC2_GUSBCFG_INDICATOR_PASSTHROUGH_OFFSET      24
+#define DWC2_GUSBCFG_IC_USB_CAP                                (1 << 26)
+#define DWC2_GUSBCFG_IC_USB_CAP_OFFSET                 26
+#define DWC2_GUSBCFG_IC_TRAFFIC_PULL_REMOVE            (1 << 27)
+#define DWC2_GUSBCFG_IC_TRAFFIC_PULL_REMOVE_OFFSET     27
+#define DWC2_GUSBCFG_TX_END_DELAY                      (1 << 28)
+#define DWC2_GUSBCFG_TX_END_DELAY_OFFSET               28
+#define DWC2_GUSBCFG_FORCEHOSTMODE                     (1 << 29)
+#define DWC2_GUSBCFG_FORCEHOSTMODE_OFFSET              29
+#define DWC2_GUSBCFG_FORCEDEVMODE                      (1 << 30)
+#define DWC2_GUSBCFG_FORCEDEVMODE_OFFSET               30
+#define DWC2_GLPMCTL_LPM_CAP_EN                                (1 << 0)
+#define DWC2_GLPMCTL_LPM_CAP_EN_OFFSET                 0
+#define DWC2_GLPMCTL_APPL_RESP                         (1 << 1)
+#define DWC2_GLPMCTL_APPL_RESP_OFFSET                  1
+#define DWC2_GLPMCTL_HIRD_MASK                         (0xF << 2)
+#define DWC2_GLPMCTL_HIRD_OFFSET                       2
+#define DWC2_GLPMCTL_REM_WKUP_EN                       (1 << 6)
+#define DWC2_GLPMCTL_REM_WKUP_EN_OFFSET                        6
+#define DWC2_GLPMCTL_EN_UTMI_SLEEP                     (1 << 7)
+#define DWC2_GLPMCTL_EN_UTMI_SLEEP_OFFSET              7
+#define DWC2_GLPMCTL_HIRD_THRES_MASK                   (0x1F << 8)
+#define DWC2_GLPMCTL_HIRD_THRES_OFFSET                 8
+#define DWC2_GLPMCTL_LPM_RESP_MASK                     (0x3 << 13)
+#define DWC2_GLPMCTL_LPM_RESP_OFFSET                   13
+#define DWC2_GLPMCTL_PRT_SLEEP_STS                     (1 << 15)
+#define DWC2_GLPMCTL_PRT_SLEEP_STS_OFFSET              15
+#define DWC2_GLPMCTL_SLEEP_STATE_RESUMEOK              (1 << 16)
+#define DWC2_GLPMCTL_SLEEP_STATE_RESUMEOK_OFFSET       16
+#define DWC2_GLPMCTL_LPM_CHAN_INDEX_MASK               (0xF << 17)
+#define DWC2_GLPMCTL_LPM_CHAN_INDEX_OFFSET             17
+#define DWC2_GLPMCTL_RETRY_COUNT_MASK                  (0x7 << 21)
+#define DWC2_GLPMCTL_RETRY_COUNT_OFFSET                        21
+#define DWC2_GLPMCTL_SEND_LPM                          (1 << 24)
+#define DWC2_GLPMCTL_SEND_LPM_OFFSET                   24
+#define DWC2_GLPMCTL_RETRY_COUNT_STS_MASK              (0x7 << 25)
+#define DWC2_GLPMCTL_RETRY_COUNT_STS_OFFSET            25
+#define DWC2_GLPMCTL_HSIC_CONNECT                      (1 << 30)
+#define DWC2_GLPMCTL_HSIC_CONNECT_OFFSET               30
+#define DWC2_GLPMCTL_INV_SEL_HSIC                      (1 << 31)
+#define DWC2_GLPMCTL_INV_SEL_HSIC_OFFSET               31
+#define DWC2_GRSTCTL_CSFTRST                           (1 << 0)
+#define DWC2_GRSTCTL_CSFTRST_OFFSET                    0
+#define DWC2_GRSTCTL_HSFTRST                           (1 << 1)
+#define DWC2_GRSTCTL_HSFTRST_OFFSET                    1
+#define DWC2_GRSTCTL_HSTFRM                            (1 << 2)
+#define DWC2_GRSTCTL_HSTFRM_OFFSET                     2
+#define DWC2_GRSTCTL_INTKNQFLSH                                (1 << 3)
+#define DWC2_GRSTCTL_INTKNQFLSH_OFFSET                 3
+#define DWC2_GRSTCTL_RXFFLSH                           (1 << 4)
+#define DWC2_GRSTCTL_RXFFLSH_OFFSET                    4
+#define DWC2_GRSTCTL_TXFFLSH                           (1 << 5)
+#define DWC2_GRSTCTL_TXFFLSH_OFFSET                    5
+#define DWC2_GRSTCTL_TXFNUM_MASK                       (0x1F << 6)
+#define DWC2_GRSTCTL_TXFNUM_OFFSET                     6
+#define DWC2_GRSTCTL_DMAREQ                            (1 << 30)
+#define DWC2_GRSTCTL_DMAREQ_OFFSET                     30
+#define DWC2_GRSTCTL_AHBIDLE                           (1 << 31)
+#define DWC2_GRSTCTL_AHBIDLE_OFFSET                    31
+#define DWC2_GINTMSK_MODEMISMATCH                      (1 << 1)
+#define DWC2_GINTMSK_MODEMISMATCH_OFFSET               1
+#define DWC2_GINTMSK_OTGINTR                           (1 << 2)
+#define DWC2_GINTMSK_OTGINTR_OFFSET                    2
+#define DWC2_GINTMSK_SOFINTR                           (1 << 3)
+#define DWC2_GINTMSK_SOFINTR_OFFSET                    3
+#define DWC2_GINTMSK_RXSTSQLVL                         (1 << 4)
+#define DWC2_GINTMSK_RXSTSQLVL_OFFSET                  4
+#define DWC2_GINTMSK_NPTXFEMPTY                                (1 << 5)
+#define DWC2_GINTMSK_NPTXFEMPTY_OFFSET                 5
+#define DWC2_GINTMSK_GINNAKEFF                         (1 << 6)
+#define DWC2_GINTMSK_GINNAKEFF_OFFSET                  6
+#define DWC2_GINTMSK_GOUTNAKEFF                                (1 << 7)
+#define DWC2_GINTMSK_GOUTNAKEFF_OFFSET                 7
+#define DWC2_GINTMSK_I2CINTR                           (1 << 9)
+#define DWC2_GINTMSK_I2CINTR_OFFSET                    9
+#define DWC2_GINTMSK_ERLYSUSPEND                       (1 << 10)
+#define DWC2_GINTMSK_ERLYSUSPEND_OFFSET                        10
+#define DWC2_GINTMSK_USBSUSPEND                                (1 << 11)
+#define DWC2_GINTMSK_USBSUSPEND_OFFSET                 11
+#define DWC2_GINTMSK_USBRESET                          (1 << 12)
+#define DWC2_GINTMSK_USBRESET_OFFSET                   12
+#define DWC2_GINTMSK_ENUMDONE                          (1 << 13)
+#define DWC2_GINTMSK_ENUMDONE_OFFSET                   13
+#define DWC2_GINTMSK_ISOOUTDROP                                (1 << 14)
+#define DWC2_GINTMSK_ISOOUTDROP_OFFSET                 14
+#define DWC2_GINTMSK_EOPFRAME                          (1 << 15)
+#define DWC2_GINTMSK_EOPFRAME_OFFSET                   15
+#define DWC2_GINTMSK_EPMISMATCH                                (1 << 17)
+#define DWC2_GINTMSK_EPMISMATCH_OFFSET                 17
+#define DWC2_GINTMSK_INEPINTR                          (1 << 18)
+#define DWC2_GINTMSK_INEPINTR_OFFSET                   18
+#define DWC2_GINTMSK_OUTEPINTR                         (1 << 19)
+#define DWC2_GINTMSK_OUTEPINTR_OFFSET                  19
+#define DWC2_GINTMSK_INCOMPLISOIN                      (1 << 20)
+#define DWC2_GINTMSK_INCOMPLISOIN_OFFSET               20
+#define DWC2_GINTMSK_INCOMPLISOOUT                     (1 << 21)
+#define DWC2_GINTMSK_INCOMPLISOOUT_OFFSET              21
+#define DWC2_GINTMSK_PORTINTR                          (1 << 24)
+#define DWC2_GINTMSK_PORTINTR_OFFSET                   24
+#define DWC2_GINTMSK_HCINTR                            (1 << 25)
+#define DWC2_GINTMSK_HCINTR_OFFSET                     25
+#define DWC2_GINTMSK_PTXFEMPTY                         (1 << 26)
+#define DWC2_GINTMSK_PTXFEMPTY_OFFSET                  26
+#define DWC2_GINTMSK_LPMTRANRCVD                       (1 << 27)
+#define DWC2_GINTMSK_LPMTRANRCVD_OFFSET                        27
+#define DWC2_GINTMSK_CONIDSTSCHNG                      (1 << 28)
+#define DWC2_GINTMSK_CONIDSTSCHNG_OFFSET               28
+#define DWC2_GINTMSK_DISCONNECT                                (1 << 29)
+#define DWC2_GINTMSK_DISCONNECT_OFFSET                 29
+#define DWC2_GINTMSK_SESSREQINTR                       (1 << 30)
+#define DWC2_GINTMSK_SESSREQINTR_OFFSET                        30
+#define DWC2_GINTMSK_WKUPINTR                          (1 << 31)
+#define DWC2_GINTMSK_WKUPINTR_OFFSET                   31
+#define DWC2_GINTSTS_CURMODE_DEVICE                    (0 << 0)
+#define DWC2_GINTSTS_CURMODE_HOST                      (1 << 0)
+#define DWC2_GINTSTS_CURMODE                           (1 << 0)
+#define DWC2_GINTSTS_CURMODE_OFFSET                    0
+#define DWC2_GINTSTS_MODEMISMATCH                      (1 << 1)
+#define DWC2_GINTSTS_MODEMISMATCH_OFFSET               1
+#define DWC2_GINTSTS_OTGINTR                           (1 << 2)
+#define DWC2_GINTSTS_OTGINTR_OFFSET                    2
+#define DWC2_GINTSTS_SOFINTR                           (1 << 3)
+#define DWC2_GINTSTS_SOFINTR_OFFSET                    3
+#define DWC2_GINTSTS_RXSTSQLVL                         (1 << 4)
+#define DWC2_GINTSTS_RXSTSQLVL_OFFSET                  4
+#define DWC2_GINTSTS_NPTXFEMPTY                                (1 << 5)
+#define DWC2_GINTSTS_NPTXFEMPTY_OFFSET                 5
+#define DWC2_GINTSTS_GINNAKEFF                         (1 << 6)
+#define DWC2_GINTSTS_GINNAKEFF_OFFSET                  6
+#define DWC2_GINTSTS_GOUTNAKEFF                                (1 << 7)
+#define DWC2_GINTSTS_GOUTNAKEFF_OFFSET                 7
+#define DWC2_GINTSTS_I2CINTR                           (1 << 9)
+#define DWC2_GINTSTS_I2CINTR_OFFSET                    9
+#define DWC2_GINTSTS_ERLYSUSPEND                       (1 << 10)
+#define DWC2_GINTSTS_ERLYSUSPEND_OFFSET                        10
+#define DWC2_GINTSTS_USBSUSPEND                                (1 << 11)
+#define DWC2_GINTSTS_USBSUSPEND_OFFSET                 11
+#define DWC2_GINTSTS_USBRESET                          (1 << 12)
+#define DWC2_GINTSTS_USBRESET_OFFSET                   12
+#define DWC2_GINTSTS_ENUMDONE                          (1 << 13)
+#define DWC2_GINTSTS_ENUMDONE_OFFSET                   13
+#define DWC2_GINTSTS_ISOOUTDROP                                (1 << 14)
+#define DWC2_GINTSTS_ISOOUTDROP_OFFSET                 14
+#define DWC2_GINTSTS_EOPFRAME                          (1 << 15)
+#define DWC2_GINTSTS_EOPFRAME_OFFSET                   15
+#define DWC2_GINTSTS_INTOKENRX                         (1 << 16)
+#define DWC2_GINTSTS_INTOKENRX_OFFSET                  16
+#define DWC2_GINTSTS_EPMISMATCH                                (1 << 17)
+#define DWC2_GINTSTS_EPMISMATCH_OFFSET                 17
+#define DWC2_GINTSTS_INEPINT                           (1 << 18)
+#define DWC2_GINTSTS_INEPINT_OFFSET                    18
+#define DWC2_GINTSTS_OUTEPINTR                         (1 << 19)
+#define DWC2_GINTSTS_OUTEPINTR_OFFSET                  19
+#define DWC2_GINTSTS_INCOMPLISOIN                      (1 << 20)
+#define DWC2_GINTSTS_INCOMPLISOIN_OFFSET               20
+#define DWC2_GINTSTS_INCOMPLISOOUT                     (1 << 21)
+#define DWC2_GINTSTS_INCOMPLISOOUT_OFFSET              21
+#define DWC2_GINTSTS_PORTINTR                          (1 << 24)
+#define DWC2_GINTSTS_PORTINTR_OFFSET                   24
+#define DWC2_GINTSTS_HCINTR                            (1 << 25)
+#define DWC2_GINTSTS_HCINTR_OFFSET                     25
+#define DWC2_GINTSTS_PTXFEMPTY                         (1 << 26)
+#define DWC2_GINTSTS_PTXFEMPTY_OFFSET                  26
+#define DWC2_GINTSTS_LPMTRANRCVD                       (1 << 27)
+#define DWC2_GINTSTS_LPMTRANRCVD_OFFSET                        27
+#define DWC2_GINTSTS_CONIDSTSCHNG                      (1 << 28)
+#define DWC2_GINTSTS_CONIDSTSCHNG_OFFSET               28
+#define DWC2_GINTSTS_DISCONNECT                                (1 << 29)
+#define DWC2_GINTSTS_DISCONNECT_OFFSET                 29
+#define DWC2_GINTSTS_SESSREQINTR                       (1 << 30)
+#define DWC2_GINTSTS_SESSREQINTR_OFFSET                        30
+#define DWC2_GINTSTS_WKUPINTR                          (1 << 31)
+#define DWC2_GINTSTS_WKUPINTR_OFFSET                   31
+#define DWC2_GRXSTS_EPNUM_MASK                         (0xF << 0)
+#define DWC2_GRXSTS_EPNUM_OFFSET                       0
+#define DWC2_GRXSTS_BCNT_MASK                          (0x7FF << 4)
+#define DWC2_GRXSTS_BCNT_OFFSET                                4
+#define DWC2_GRXSTS_DPID_MASK                          (0x3 << 15)
+#define DWC2_GRXSTS_DPID_OFFSET                                15
+#define DWC2_GRXSTS_PKTSTS_MASK                                (0xF << 17)
+#define DWC2_GRXSTS_PKTSTS_OFFSET                      17
+#define DWC2_GRXSTS_FN_MASK                            (0xF << 21)
+#define DWC2_GRXSTS_FN_OFFSET                          21
+#define DWC2_FIFOSIZE_STARTADDR_MASK                   (0xFFFF << 0)
+#define DWC2_FIFOSIZE_STARTADDR_OFFSET                 0
+#define DWC2_FIFOSIZE_DEPTH_MASK                       (0xFFFF << 16)
+#define DWC2_FIFOSIZE_DEPTH_OFFSET                     16
+#define DWC2_GNPTXSTS_NPTXFSPCAVAIL_MASK               (0xFFFF << 0)
+#define DWC2_GNPTXSTS_NPTXFSPCAVAIL_OFFSET             0
+#define DWC2_GNPTXSTS_NPTXQSPCAVAIL_MASK               (0xFF << 16)
+#define DWC2_GNPTXSTS_NPTXQSPCAVAIL_OFFSET             16
+#define DWC2_GNPTXSTS_NPTXQTOP_TERMINATE               (1 << 24)
+#define DWC2_GNPTXSTS_NPTXQTOP_TERMINATE_OFFSET                24
+#define DWC2_GNPTXSTS_NPTXQTOP_TOKEN_MASK              (0x3 << 25)
+#define DWC2_GNPTXSTS_NPTXQTOP_TOKEN_OFFSET            25
+#define DWC2_GNPTXSTS_NPTXQTOP_CHNEP_MASK              (0xF << 27)
+#define DWC2_GNPTXSTS_NPTXQTOP_CHNEP_OFFSET            27
+#define DWC2_DTXFSTS_TXFSPCAVAIL_MASK                  (0xFFFF << 0)
+#define DWC2_DTXFSTS_TXFSPCAVAIL_OFFSET                        0
+#define DWC2_GI2CCTL_RWDATA_MASK                       (0xFF << 0)
+#define DWC2_GI2CCTL_RWDATA_OFFSET                     0
+#define DWC2_GI2CCTL_REGADDR_MASK                      (0xFF << 8)
+#define DWC2_GI2CCTL_REGADDR_OFFSET                    8
+#define DWC2_GI2CCTL_ADDR_MASK                         (0x7F << 16)
+#define DWC2_GI2CCTL_ADDR_OFFSET                       16
+#define DWC2_GI2CCTL_I2CEN                             (1 << 23)
+#define DWC2_GI2CCTL_I2CEN_OFFSET                      23
+#define DWC2_GI2CCTL_ACK                               (1 << 24)
+#define DWC2_GI2CCTL_ACK_OFFSET                                24
+#define DWC2_GI2CCTL_I2CSUSPCTL                                (1 << 25)
+#define DWC2_GI2CCTL_I2CSUSPCTL_OFFSET                 25
+#define DWC2_GI2CCTL_I2CDEVADDR_MASK                   (0x3 << 26)
+#define DWC2_GI2CCTL_I2CDEVADDR_OFFSET                 26
+#define DWC2_GI2CCTL_RW                                        (1 << 30)
+#define DWC2_GI2CCTL_RW_OFFSET                         30
+#define DWC2_GI2CCTL_BSYDNE                            (1 << 31)
+#define DWC2_GI2CCTL_BSYDNE_OFFSET                     31
+#define DWC2_HWCFG1_EP_DIR0_MASK                       (0x3 << 0)
+#define DWC2_HWCFG1_EP_DIR0_OFFSET                     0
+#define DWC2_HWCFG1_EP_DIR1_MASK                       (0x3 << 2)
+#define DWC2_HWCFG1_EP_DIR1_OFFSET                     2
+#define DWC2_HWCFG1_EP_DIR2_MASK                       (0x3 << 4)
+#define DWC2_HWCFG1_EP_DIR2_OFFSET                     4
+#define DWC2_HWCFG1_EP_DIR3_MASK                       (0x3 << 6)
+#define DWC2_HWCFG1_EP_DIR3_OFFSET                     6
+#define DWC2_HWCFG1_EP_DIR4_MASK                       (0x3 << 8)
+#define DWC2_HWCFG1_EP_DIR4_OFFSET                     8
+#define DWC2_HWCFG1_EP_DIR5_MASK                       (0x3 << 10)
+#define DWC2_HWCFG1_EP_DIR5_OFFSET                     10
+#define DWC2_HWCFG1_EP_DIR6_MASK                       (0x3 << 12)
+#define DWC2_HWCFG1_EP_DIR6_OFFSET                     12
+#define DWC2_HWCFG1_EP_DIR7_MASK                       (0x3 << 14)
+#define DWC2_HWCFG1_EP_DIR7_OFFSET                     14
+#define DWC2_HWCFG1_EP_DIR8_MASK                       (0x3 << 16)
+#define DWC2_HWCFG1_EP_DIR8_OFFSET                     16
+#define DWC2_HWCFG1_EP_DIR9_MASK                       (0x3 << 18)
+#define DWC2_HWCFG1_EP_DIR9_OFFSET                     18
+#define DWC2_HWCFG1_EP_DIR10_MASK                      (0x3 << 20)
+#define DWC2_HWCFG1_EP_DIR10_OFFSET                    20
+#define DWC2_HWCFG1_EP_DIR11_MASK                      (0x3 << 22)
+#define DWC2_HWCFG1_EP_DIR11_OFFSET                    22
+#define DWC2_HWCFG1_EP_DIR12_MASK                      (0x3 << 24)
+#define DWC2_HWCFG1_EP_DIR12_OFFSET                    24
+#define DWC2_HWCFG1_EP_DIR13_MASK                      (0x3 << 26)
+#define DWC2_HWCFG1_EP_DIR13_OFFSET                    26
+#define DWC2_HWCFG1_EP_DIR14_MASK                      (0x3 << 28)
+#define DWC2_HWCFG1_EP_DIR14_OFFSET                    28
+#define DWC2_HWCFG1_EP_DIR15_MASK                      (0x3 << 30)
+#define DWC2_HWCFG1_EP_DIR15_OFFSET                    30
+#define DWC2_HWCFG2_OP_MODE_MASK                       (0x7 << 0)
+#define DWC2_HWCFG2_OP_MODE_OFFSET                     0
+#define DWC2_HWCFG2_ARCHITECTURE_SLAVE_ONLY            (0x0 << 3)
+#define DWC2_HWCFG2_ARCHITECTURE_EXT_DMA               (0x1 << 3)
+#define DWC2_HWCFG2_ARCHITECTURE_INT_DMA               (0x2 << 3)
+#define DWC2_HWCFG2_ARCHITECTURE_MASK                  (0x3 << 3)
+#define DWC2_HWCFG2_ARCHITECTURE_OFFSET                        3
+#define DWC2_HWCFG2_POINT2POINT                                (1 << 5)
+#define DWC2_HWCFG2_POINT2POINT_OFFSET                 5
+#define DWC2_HWCFG2_HS_PHY_TYPE_MASK                   (0x3 << 6)
+#define DWC2_HWCFG2_HS_PHY_TYPE_OFFSET                 6
+#define DWC2_HWCFG2_FS_PHY_TYPE_MASK                   (0x3 << 8)
+#define DWC2_HWCFG2_FS_PHY_TYPE_OFFSET                 8
+#define DWC2_HWCFG2_NUM_DEV_EP_MASK                    (0xF << 10)
+#define DWC2_HWCFG2_NUM_DEV_EP_OFFSET                  10
+#define DWC2_HWCFG2_NUM_HOST_CHAN_MASK                 (0xF << 14)
+#define DWC2_HWCFG2_NUM_HOST_CHAN_OFFSET               14
+#define DWC2_HWCFG2_PERIO_EP_SUPPORTED                 (1 << 18)
+#define DWC2_HWCFG2_PERIO_EP_SUPPORTED_OFFSET          18
+#define DWC2_HWCFG2_DYNAMIC_FIFO                       (1 << 19)
+#define DWC2_HWCFG2_DYNAMIC_FIFO_OFFSET                        19
+#define DWC2_HWCFG2_MULTI_PROC_INT                     (1 << 20)
+#define DWC2_HWCFG2_MULTI_PROC_INT_OFFSET              20
+#define DWC2_HWCFG2_NONPERIO_TX_Q_DEPTH_MASK           (0x3 << 22)
+#define DWC2_HWCFG2_NONPERIO_TX_Q_DEPTH_OFFSET         22
+#define DWC2_HWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK         (0x3 << 24)
+#define DWC2_HWCFG2_HOST_PERIO_TX_Q_DEPTH_OFFSET       24
+#define DWC2_HWCFG2_DEV_TOKEN_Q_DEPTH_MASK             (0x1F << 26)
+#define DWC2_HWCFG2_DEV_TOKEN_Q_DEPTH_OFFSET           26
+#define DWC2_HWCFG3_XFER_SIZE_CNTR_WIDTH_MASK          (0xF << 0)
+#define DWC2_HWCFG3_XFER_SIZE_CNTR_WIDTH_OFFSET                0
+#define DWC2_HWCFG3_PACKET_SIZE_CNTR_WIDTH_MASK                (0x7 << 4)
+#define DWC2_HWCFG3_PACKET_SIZE_CNTR_WIDTH_OFFSET      4
+#define DWC2_HWCFG3_OTG_FUNC                           (1 << 7)
+#define DWC2_HWCFG3_OTG_FUNC_OFFSET                    7
+#define DWC2_HWCFG3_I2C                                        (1 << 8)
+#define DWC2_HWCFG3_I2C_OFFSET                         8
+#define DWC2_HWCFG3_VENDOR_CTRL_IF                     (1 << 9)
+#define DWC2_HWCFG3_VENDOR_CTRL_IF_OFFSET              9
+#define DWC2_HWCFG3_OPTIONAL_FEATURES                  (1 << 10)
+#define DWC2_HWCFG3_OPTIONAL_FEATURES_OFFSET           10
+#define DWC2_HWCFG3_SYNCH_RESET_TYPE                   (1 << 11)
+#define DWC2_HWCFG3_SYNCH_RESET_TYPE_OFFSET            11
+#define DWC2_HWCFG3_OTG_ENABLE_IC_USB                  (1 << 12)
+#define DWC2_HWCFG3_OTG_ENABLE_IC_USB_OFFSET           12
+#define DWC2_HWCFG3_OTG_ENABLE_HSIC                    (1 << 13)
+#define DWC2_HWCFG3_OTG_ENABLE_HSIC_OFFSET             13
+#define DWC2_HWCFG3_OTG_LPM_EN                         (1 << 15)
+#define DWC2_HWCFG3_OTG_LPM_EN_OFFSET                  15
+#define DWC2_HWCFG3_DFIFO_DEPTH_MASK                   (0xFFFF << 16)
+#define DWC2_HWCFG3_DFIFO_DEPTH_OFFSET                 16
+#define DWC2_HWCFG4_NUM_DEV_PERIO_IN_EP_MASK           (0xF << 0)
+#define DWC2_HWCFG4_NUM_DEV_PERIO_IN_EP_OFFSET         0
+#define DWC2_HWCFG4_POWER_OPTIMIZ                      (1 << 4)
+#define DWC2_HWCFG4_POWER_OPTIMIZ_OFFSET               4
+#define DWC2_HWCFG4_MIN_AHB_FREQ_MASK                  (0x1FF << 5)
+#define DWC2_HWCFG4_MIN_AHB_FREQ_OFFSET                        5
+#define DWC2_HWCFG4_UTMI_PHY_DATA_WIDTH_MASK           (0x3 << 14)
+#define DWC2_HWCFG4_UTMI_PHY_DATA_WIDTH_OFFSET         14
+#define DWC2_HWCFG4_NUM_DEV_MODE_CTRL_EP_MASK          (0xF << 16)
+#define DWC2_HWCFG4_NUM_DEV_MODE_CTRL_EP_OFFSET                16
+#define DWC2_HWCFG4_IDDIG_FILT_EN                      (1 << 20)
+#define DWC2_HWCFG4_IDDIG_FILT_EN_OFFSET               20
+#define DWC2_HWCFG4_VBUS_VALID_FILT_EN                 (1 << 21)
+#define DWC2_HWCFG4_VBUS_VALID_FILT_EN_OFFSET          21
+#define DWC2_HWCFG4_A_VALID_FILT_EN                    (1 << 22)
+#define DWC2_HWCFG4_A_VALID_FILT_EN_OFFSET             22
+#define DWC2_HWCFG4_B_VALID_FILT_EN                    (1 << 23)
+#define DWC2_HWCFG4_B_VALID_FILT_EN_OFFSET             23
+#define DWC2_HWCFG4_SESSION_END_FILT_EN                        (1 << 24)
+#define DWC2_HWCFG4_SESSION_END_FILT_EN_OFFSET         24
+#define DWC2_HWCFG4_DED_FIFO_EN                                (1 << 25)
+#define DWC2_HWCFG4_DED_FIFO_EN_OFFSET                 25
+#define DWC2_HWCFG4_NUM_IN_EPS_MASK                    (0xF << 26)
+#define DWC2_HWCFG4_NUM_IN_EPS_OFFSET                  26
+#define DWC2_HWCFG4_DESC_DMA                           (1 << 30)
+#define DWC2_HWCFG4_DESC_DMA_OFFSET                    30
+#define DWC2_HWCFG4_DESC_DMA_DYN                       (1 << 31)
+#define DWC2_HWCFG4_DESC_DMA_DYN_OFFSET                        31
+#define DWC2_HCFG_FSLSPCLKSEL_30_60_MHZ                        0
+#define DWC2_HCFG_FSLSPCLKSEL_48_MHZ                   1
+#define DWC2_HCFG_FSLSPCLKSEL_6_MHZ                    2
+#define DWC2_HCFG_FSLSPCLKSEL_MASK                     (0x3 << 0)
+#define DWC2_HCFG_FSLSPCLKSEL_OFFSET                   0
+#define DWC2_HCFG_FSLSSUPP                             (1 << 2)
+#define DWC2_HCFG_FSLSSUPP_OFFSET                      2
+#define DWC2_HCFG_DESCDMA                              (1 << 23)
+#define DWC2_HCFG_DESCDMA_OFFSET                       23
+#define DWC2_HCFG_FRLISTEN_MASK                                (0x3 << 24)
+#define DWC2_HCFG_FRLISTEN_OFFSET                      24
+#define DWC2_HCFG_PERSCHEDENA                          (1 << 26)
+#define DWC2_HCFG_PERSCHEDENA_OFFSET                   26
+#define DWC2_HCFG_PERSCHEDSTAT                         (1 << 27)
+#define DWC2_HCFG_PERSCHEDSTAT_OFFSET                  27
+#define DWC2_HFIR_FRINT_MASK                           (0xFFFF << 0)
+#define DWC2_HFIR_FRINT_OFFSET                         0
+#define DWC2_HFNUM_FRNUM_MASK                          (0xFFFF << 0)
+#define DWC2_HFNUM_FRNUM_OFFSET                                0
+#define DWC2_HFNUM_FRREM_MASK                          (0xFFFF << 16)
+#define DWC2_HFNUM_FRREM_OFFSET                                16
+#define DWC2_HFNUM_MAX_FRNUM                           0x3FFF
+#define DWC2_HPTXSTS_PTXFSPCAVAIL_MASK                 (0xFFFF << 0)
+#define DWC2_HPTXSTS_PTXFSPCAVAIL_OFFSET               0
+#define DWC2_HPTXSTS_PTXQSPCAVAIL_MASK                 (0xFF << 16)
+#define DWC2_HPTXSTS_PTXQSPCAVAIL_OFFSET               16
+#define DWC2_HPTXSTS_PTXQTOP_TERMINATE                 (1 << 24)
+#define DWC2_HPTXSTS_PTXQTOP_TERMINATE_OFFSET          24
+#define DWC2_HPTXSTS_PTXQTOP_TOKEN_MASK                        (0x3 << 25)
+#define DWC2_HPTXSTS_PTXQTOP_TOKEN_OFFSET              25
+#define DWC2_HPTXSTS_PTXQTOP_CHNUM_MASK                        (0xF << 27)
+#define DWC2_HPTXSTS_PTXQTOP_CHNUM_OFFSET              27
+#define DWC2_HPTXSTS_PTXQTOP_ODD                       (1 << 31)
+#define DWC2_HPTXSTS_PTXQTOP_ODD_OFFSET                        31
+#define DWC2_HPRT0_PRTCONNSTS                          (1 << 0)
+#define DWC2_HPRT0_PRTCONNSTS_OFFSET                   0
+#define DWC2_HPRT0_PRTCONNDET                          (1 << 1)
+#define DWC2_HPRT0_PRTCONNDET_OFFSET                   1
+#define DWC2_HPRT0_PRTENA                              (1 << 2)
+#define DWC2_HPRT0_PRTENA_OFFSET                       2
+#define DWC2_HPRT0_PRTENCHNG                           (1 << 3)
+#define DWC2_HPRT0_PRTENCHNG_OFFSET                    3
+#define DWC2_HPRT0_PRTOVRCURRACT                       (1 << 4)
+#define DWC2_HPRT0_PRTOVRCURRACT_OFFSET                        4
+#define DWC2_HPRT0_PRTOVRCURRCHNG                      (1 << 5)
+#define DWC2_HPRT0_PRTOVRCURRCHNG_OFFSET               5
+#define DWC2_HPRT0_PRTRES                              (1 << 6)
+#define DWC2_HPRT0_PRTRES_OFFSET                       6
+#define DWC2_HPRT0_PRTSUSP                             (1 << 7)
+#define DWC2_HPRT0_PRTSUSP_OFFSET                      7
+#define DWC2_HPRT0_PRTRST                              (1 << 8)
+#define DWC2_HPRT0_PRTRST_OFFSET                       8
+#define DWC2_HPRT0_PRTLNSTS_MASK                       (0x3 << 10)
+#define DWC2_HPRT0_PRTLNSTS_OFFSET                     10
+#define DWC2_HPRT0_PRTPWR                              (1 << 12)
+#define DWC2_HPRT0_PRTPWR_OFFSET                       12
+#define DWC2_HPRT0_PRTTSTCTL_MASK                      (0xF << 13)
+#define DWC2_HPRT0_PRTTSTCTL_OFFSET                    13
+#define DWC2_HPRT0_PRTSPD_HIGH                         (0 << 17)
+#define DWC2_HPRT0_PRTSPD_FULL                         (1 << 17)
+#define DWC2_HPRT0_PRTSPD_LOW                          (2 << 17)
+#define DWC2_HPRT0_PRTSPD_MASK                         (0x3 << 17)
+#define DWC2_HPRT0_PRTSPD_OFFSET                       17
+#define DWC2_HAINT_CH0                                 (1 << 0)
+#define DWC2_HAINT_CH0_OFFSET                          0
+#define DWC2_HAINT_CH1                                 (1 << 1)
+#define DWC2_HAINT_CH1_OFFSET                          1
+#define DWC2_HAINT_CH2                                 (1 << 2)
+#define DWC2_HAINT_CH2_OFFSET                          2
+#define DWC2_HAINT_CH3                                 (1 << 3)
+#define DWC2_HAINT_CH3_OFFSET                          3
+#define DWC2_HAINT_CH4                                 (1 << 4)
+#define DWC2_HAINT_CH4_OFFSET                          4
+#define DWC2_HAINT_CH5                                 (1 << 5)
+#define DWC2_HAINT_CH5_OFFSET                          5
+#define DWC2_HAINT_CH6                                 (1 << 6)
+#define DWC2_HAINT_CH6_OFFSET                          6
+#define DWC2_HAINT_CH7                                 (1 << 7)
+#define DWC2_HAINT_CH7_OFFSET                          7
+#define DWC2_HAINT_CH8                                 (1 << 8)
+#define DWC2_HAINT_CH8_OFFSET                          8
+#define DWC2_HAINT_CH9                                 (1 << 9)
+#define DWC2_HAINT_CH9_OFFSET                          9
+#define DWC2_HAINT_CH10                                        (1 << 10)
+#define DWC2_HAINT_CH10_OFFSET                         10
+#define DWC2_HAINT_CH11                                        (1 << 11)
+#define DWC2_HAINT_CH11_OFFSET                         11
+#define DWC2_HAINT_CH12                                        (1 << 12)
+#define DWC2_HAINT_CH12_OFFSET                         12
+#define DWC2_HAINT_CH13                                        (1 << 13)
+#define DWC2_HAINT_CH13_OFFSET                         13
+#define DWC2_HAINT_CH14                                        (1 << 14)
+#define DWC2_HAINT_CH14_OFFSET                         14
+#define DWC2_HAINT_CH15                                        (1 << 15)
+#define DWC2_HAINT_CH15_OFFSET                         15
+#define DWC2_HAINT_CHINT_MASK                          0xffff
+#define DWC2_HAINT_CHINT_OFFSET                                0
+#define DWC2_HAINTMSK_CH0                              (1 << 0)
+#define DWC2_HAINTMSK_CH0_OFFSET                       0
+#define DWC2_HAINTMSK_CH1                              (1 << 1)
+#define DWC2_HAINTMSK_CH1_OFFSET                       1
+#define DWC2_HAINTMSK_CH2                              (1 << 2)
+#define DWC2_HAINTMSK_CH2_OFFSET                       2
+#define DWC2_HAINTMSK_CH3                              (1 << 3)
+#define DWC2_HAINTMSK_CH3_OFFSET                       3
+#define DWC2_HAINTMSK_CH4                              (1 << 4)
+#define DWC2_HAINTMSK_CH4_OFFSET                       4
+#define DWC2_HAINTMSK_CH5                              (1 << 5)
+#define DWC2_HAINTMSK_CH5_OFFSET                       5
+#define DWC2_HAINTMSK_CH6                              (1 << 6)
+#define DWC2_HAINTMSK_CH6_OFFSET                       6
+#define DWC2_HAINTMSK_CH7                              (1 << 7)
+#define DWC2_HAINTMSK_CH7_OFFSET                       7
+#define DWC2_HAINTMSK_CH8                              (1 << 8)
+#define DWC2_HAINTMSK_CH8_OFFSET                       8
+#define DWC2_HAINTMSK_CH9                              (1 << 9)
+#define DWC2_HAINTMSK_CH9_OFFSET                       9
+#define DWC2_HAINTMSK_CH10                             (1 << 10)
+#define DWC2_HAINTMSK_CH10_OFFSET                      10
+#define DWC2_HAINTMSK_CH11                             (1 << 11)
+#define DWC2_HAINTMSK_CH11_OFFSET                      11
+#define DWC2_HAINTMSK_CH12                             (1 << 12)
+#define DWC2_HAINTMSK_CH12_OFFSET                      12
+#define DWC2_HAINTMSK_CH13                             (1 << 13)
+#define DWC2_HAINTMSK_CH13_OFFSET                      13
+#define DWC2_HAINTMSK_CH14                             (1 << 14)
+#define DWC2_HAINTMSK_CH14_OFFSET                      14
+#define DWC2_HAINTMSK_CH15                             (1 << 15)
+#define DWC2_HAINTMSK_CH15_OFFSET                      15
+#define DWC2_HAINTMSK_CHINT_MASK                       0xffff
+#define DWC2_HAINTMSK_CHINT_OFFSET                     0
+#define DWC2_HCCHAR_MPS_MASK                           (0x7FF << 0)
+#define DWC2_HCCHAR_MPS_OFFSET                         0
+#define DWC2_HCCHAR_EPNUM_MASK                         (0xF << 11)
+#define DWC2_HCCHAR_EPNUM_OFFSET                       11
+#define DWC2_HCCHAR_EPDIR                              (1 << 15)
+#define DWC2_HCCHAR_EPDIR_OFFSET                       15
+#define DWC2_HCCHAR_LSPDDEV                            (1 << 17)
+#define DWC2_HCCHAR_LSPDDEV_OFFSET                     17
+#define DWC2_HCCHAR_EPTYPE_CONTROL                     0
+#define DWC2_HCCHAR_EPTYPE_ISOC                                1
+#define DWC2_HCCHAR_EPTYPE_BULK                                2
+#define DWC2_HCCHAR_EPTYPE_INTR                                3
+#define DWC2_HCCHAR_EPTYPE_MASK                                (0x3 << 18)
+#define DWC2_HCCHAR_EPTYPE_OFFSET                      18
+#define DWC2_HCCHAR_MULTICNT_MASK                      (0x3 << 20)
+#define DWC2_HCCHAR_MULTICNT_OFFSET                    20
+#define DWC2_HCCHAR_DEVADDR_MASK                       (0x7F << 22)
+#define DWC2_HCCHAR_DEVADDR_OFFSET                     22
+#define DWC2_HCCHAR_ODDFRM                             (1 << 29)
+#define DWC2_HCCHAR_ODDFRM_OFFSET                      29
+#define DWC2_HCCHAR_CHDIS                              (1 << 30)
+#define DWC2_HCCHAR_CHDIS_OFFSET                       30
+#define DWC2_HCCHAR_CHEN                               (1 << 31)
+#define DWC2_HCCHAR_CHEN_OFFSET                                31
+#define DWC2_HCSPLT_PRTADDR_MASK                       (0x7F << 0)
+#define DWC2_HCSPLT_PRTADDR_OFFSET                     0
+#define DWC2_HCSPLT_HUBADDR_MASK                       (0x7F << 7)
+#define DWC2_HCSPLT_HUBADDR_OFFSET                     7
+#define DWC2_HCSPLT_XACTPOS_MASK                       (0x3 << 14)
+#define DWC2_HCSPLT_XACTPOS_OFFSET                     14
+#define DWC2_HCSPLT_COMPSPLT                           (1 << 16)
+#define DWC2_HCSPLT_COMPSPLT_OFFSET                    16
+#define DWC2_HCSPLT_SPLTENA                            (1 << 31)
+#define DWC2_HCSPLT_SPLTENA_OFFSET                     31
+#define DWC2_HCINT_XFERCOMP                            (1 << 0)
+#define DWC2_HCINT_XFERCOMP_OFFSET                     0
+#define DWC2_HCINT_CHHLTD                              (1 << 1)
+#define DWC2_HCINT_CHHLTD_OFFSET                       1
+#define DWC2_HCINT_AHBERR                              (1 << 2)
+#define DWC2_HCINT_AHBERR_OFFSET                       2
+#define DWC2_HCINT_STALL                               (1 << 3)
+#define DWC2_HCINT_STALL_OFFSET                                3
+#define DWC2_HCINT_NAK                                 (1 << 4)
+#define DWC2_HCINT_NAK_OFFSET                          4
+#define DWC2_HCINT_ACK                                 (1 << 5)
+#define DWC2_HCINT_ACK_OFFSET                          5
+#define DWC2_HCINT_NYET                                        (1 << 6)
+#define DWC2_HCINT_NYET_OFFSET                         6
+#define DWC2_HCINT_XACTERR                             (1 << 7)
+#define DWC2_HCINT_XACTERR_OFFSET                      7
+#define DWC2_HCINT_BBLERR                              (1 << 8)
+#define DWC2_HCINT_BBLERR_OFFSET                       8
+#define DWC2_HCINT_FRMOVRUN                            (1 << 9)
+#define DWC2_HCINT_FRMOVRUN_OFFSET                     9
+#define DWC2_HCINT_DATATGLERR                          (1 << 10)
+#define DWC2_HCINT_DATATGLERR_OFFSET                   10
+#define DWC2_HCINT_BNA                                 (1 << 11)
+#define DWC2_HCINT_BNA_OFFSET                          11
+#define DWC2_HCINT_XCS_XACT                            (1 << 12)
+#define DWC2_HCINT_XCS_XACT_OFFSET                     12
+#define DWC2_HCINT_FRM_LIST_ROLL                       (1 << 13)
+#define DWC2_HCINT_FRM_LIST_ROLL_OFFSET                        13
+#define DWC2_HCINTMSK_XFERCOMPL                                (1 << 0)
+#define DWC2_HCINTMSK_XFERCOMPL_OFFSET                 0
+#define DWC2_HCINTMSK_CHHLTD                           (1 << 1)
+#define DWC2_HCINTMSK_CHHLTD_OFFSET                    1
+#define DWC2_HCINTMSK_AHBERR                           (1 << 2)
+#define DWC2_HCINTMSK_AHBERR_OFFSET                    2
+#define DWC2_HCINTMSK_STALL                            (1 << 3)
+#define DWC2_HCINTMSK_STALL_OFFSET                     3
+#define DWC2_HCINTMSK_NAK                              (1 << 4)
+#define DWC2_HCINTMSK_NAK_OFFSET                       4
+#define DWC2_HCINTMSK_ACK                              (1 << 5)
+#define DWC2_HCINTMSK_ACK_OFFSET                       5
+#define DWC2_HCINTMSK_NYET                             (1 << 6)
+#define DWC2_HCINTMSK_NYET_OFFSET                      6
+#define DWC2_HCINTMSK_XACTERR                          (1 << 7)
+#define DWC2_HCINTMSK_XACTERR_OFFSET                   7
+#define DWC2_HCINTMSK_BBLERR                           (1 << 8)
+#define DWC2_HCINTMSK_BBLERR_OFFSET                    8
+#define DWC2_HCINTMSK_FRMOVRUN                         (1 << 9)
+#define DWC2_HCINTMSK_FRMOVRUN_OFFSET                  9
+#define DWC2_HCINTMSK_DATATGLERR                       (1 << 10)
+#define DWC2_HCINTMSK_DATATGLERR_OFFSET                        10
+#define DWC2_HCINTMSK_BNA                              (1 << 11)
+#define DWC2_HCINTMSK_BNA_OFFSET                       11
+#define DWC2_HCINTMSK_XCS_XACT                         (1 << 12)
+#define DWC2_HCINTMSK_XCS_XACT_OFFSET                  12
+#define DWC2_HCINTMSK_FRM_LIST_ROLL                    (1 << 13)
+#define DWC2_HCINTMSK_FRM_LIST_ROLL_OFFSET             13
+#define DWC2_HCTSIZ_XFERSIZE_MASK                      0x7ffff
+#define DWC2_HCTSIZ_XFERSIZE_OFFSET                    0
+#define DWC2_HCTSIZ_SCHINFO_MASK                       0xff
+#define DWC2_HCTSIZ_SCHINFO_OFFSET                     0
+#define DWC2_HCTSIZ_NTD_MASK                           (0xff << 8)
+#define DWC2_HCTSIZ_NTD_OFFSET                         8
+#define DWC2_HCTSIZ_PKTCNT_MASK                                (0x3ff << 19)
+#define DWC2_HCTSIZ_PKTCNT_OFFSET                      19
+#define DWC2_HCTSIZ_PID_MASK                           (0x3 << 29)
+#define DWC2_HCTSIZ_PID_OFFSET                         29
+#define DWC2_HCTSIZ_DOPNG                              (1 << 31)
+#define DWC2_HCTSIZ_DOPNG_OFFSET                       31
+#define DWC2_HCDMA_CTD_MASK                            (0xFF << 3)
+#define DWC2_HCDMA_CTD_OFFSET                          3
+#define DWC2_HCDMA_DMA_ADDR_MASK                       (0x1FFFFF << 11)
+#define DWC2_HCDMA_DMA_ADDR_OFFSET                     11
+#define DWC2_PCGCCTL_STOPPCLK                          (1 << 0)
+#define DWC2_PCGCCTL_STOPPCLK_OFFSET                   0
+#define DWC2_PCGCCTL_GATEHCLK                          (1 << 1)
+#define DWC2_PCGCCTL_GATEHCLK_OFFSET                   1
+#define DWC2_PCGCCTL_PWRCLMP                           (1 << 2)
+#define DWC2_PCGCCTL_PWRCLMP_OFFSET                    2
+#define DWC2_PCGCCTL_RSTPDWNMODULE                     (1 << 3)
+#define DWC2_PCGCCTL_RSTPDWNMODULE_OFFSET              3
+#define DWC2_PCGCCTL_PHYSUSPENDED                      (1 << 4)
+#define DWC2_PCGCCTL_PHYSUSPENDED_OFFSET               4
+#define DWC2_PCGCCTL_ENBL_SLEEP_GATING                 (1 << 5)
+#define DWC2_PCGCCTL_ENBL_SLEEP_GATING_OFFSET          5
+#define DWC2_PCGCCTL_PHY_IN_SLEEP                      (1 << 6)
+#define DWC2_PCGCCTL_PHY_IN_SLEEP_OFFSET               6
+#define DWC2_PCGCCTL_DEEP_SLEEP                                (1 << 7)
+#define DWC2_PCGCCTL_DEEP_SLEEP_OFFSET                 7
+#define DWC2_SNPSID_DEVID_VER_2xx                      (0x4f542 << 12)
+#define DWC2_SNPSID_DEVID_VER_3xx                      (0x4f543 << 12)
+#define DWC2_SNPSID_DEVID_MASK                         (0xfffff << 12)
+#define DWC2_SNPSID_DEVID_OFFSET                       12
+
+/* Host controller specific */
+#define DWC2_HC_PID_DATA0              0
+#define DWC2_HC_PID_DATA2              1
+#define DWC2_HC_PID_DATA1              2
+#define DWC2_HC_PID_MDATA              3
+#define DWC2_HC_PID_SETUP              3
+
+/* roothub.a masks */
+#define RH_A_NDP       (0xff << 0)     /* number of downstream ports */
+#define RH_A_PSM       (1 << 8)        /* power switching mode */
+#define RH_A_NPS       (1 << 9)        /* no power switching */
+#define RH_A_DT                (1 << 10)       /* device type (mbz) */
+#define RH_A_OCPM      (1 << 11)       /* over current protection mode */
+#define RH_A_NOCP      (1 << 12)       /* no over current protection */
+#define RH_A_POTPGT    (0xff << 24)    /* power on to power good time */
+
+/* roothub.b masks */
+#define RH_B_DR                0x0000ffff      /* device removable flags */
+#define RH_B_PPCM      0xffff0000      /* port power control mask */
+
+/* Default driver configuration */
+#define CONFIG_DWC2_MAX_CHANNELS               16      /* Max # of EPs */
+#define CONFIG_DWC2_HOST_RX_FIFO_SIZE          (516 + CONFIG_DWC2_MAX_CHANNELS)
+#define CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE   0x100   /* nPeriodic TX FIFO */
+#define CONFIG_DWC2_HOST_PERIO_TX_FIFO_SIZE    0x200   /* Periodic TX FIFO */
+#define CONFIG_DWC2_MAX_TRANSFER_SIZE          65535
+#define CONFIG_DWC2_MAX_PACKET_COUNT           511
+
+#define DWC2_PHY_TYPE_FS               0
+#define DWC2_PHY_TYPE_UTMI             1
+#define DWC2_PHY_TYPE_ULPI             2
+#define CONFIG_DWC2_PHY_TYPE           DWC2_PHY_TYPE_UTMI      /* PHY type */
+#define CONFIG_DWC2_UTMI_WIDTH         8       /* UTMI bus width (8/16) */
+
+#define CONFIG_DWC2_PHY_ULPI_EXT_VBUS          /* ULPI PHY controls VBUS */
+#define CONFIG_DWC2_TX_THR_LENGTH              64
+
+#endif /* __DWC2_H__ */
-- 
2.24.0


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