ext4: reduce contention on s_orphan_lock

[linux/fpc-iii.git] / drivers / staging / octeon-usb / octeon-hcd.h

/*
 * Octeon HCD hardware register definitions.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Some parts of the code were originally released under BSD license:
 *
 * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *
 *   * Neither the name of Cavium Networks nor the names of
 *     its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.
 *
 * This Software, including technical data, may be subject to U.S. export
 * control laws, including the U.S. Export Administration Act and its associated
 * regulations, and may be subject to export or import regulations in other
 * countries.
 *
 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
 * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
 * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
 */

#ifndef __OCTEON_HCD_H__
#define __OCTEON_HCD_H__

#define CVMX_USBCXBASE 0x00016F0010000000ull
#define CVMX_USBCXREG1(reg, bid) \
        (CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
         ((bid) & 1) * 0x100000000000ull)
#define CVMX_USBCXREG2(reg, bid, off) \
        (CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
         (((off) & 7) + ((bid) & 1) * 0x8000000000ull) * 32)

#define CVMX_USBCX_GAHBCFG(bid)         CVMX_USBCXREG1(0x008, bid)
#define CVMX_USBCX_GHWCFG3(bid)         CVMX_USBCXREG1(0x04c, bid)
#define CVMX_USBCX_GINTMSK(bid)         CVMX_USBCXREG1(0x018, bid)
#define CVMX_USBCX_GINTSTS(bid)         CVMX_USBCXREG1(0x014, bid)
#define CVMX_USBCX_GNPTXFSIZ(bid)       CVMX_USBCXREG1(0x028, bid)
#define CVMX_USBCX_GNPTXSTS(bid)        CVMX_USBCXREG1(0x02c, bid)
#define CVMX_USBCX_GOTGCTL(bid)         CVMX_USBCXREG1(0x000, bid)
#define CVMX_USBCX_GRSTCTL(bid)         CVMX_USBCXREG1(0x010, bid)
#define CVMX_USBCX_GRXFSIZ(bid)         CVMX_USBCXREG1(0x024, bid)
#define CVMX_USBCX_GRXSTSPH(bid)        CVMX_USBCXREG1(0x020, bid)
#define CVMX_USBCX_GUSBCFG(bid)         CVMX_USBCXREG1(0x00c, bid)
#define CVMX_USBCX_HAINT(bid)           CVMX_USBCXREG1(0x414, bid)
#define CVMX_USBCX_HAINTMSK(bid)        CVMX_USBCXREG1(0x418, bid)
#define CVMX_USBCX_HCCHARX(off, bid)    CVMX_USBCXREG2(0x500, bid, off)
#define CVMX_USBCX_HCFG(bid)            CVMX_USBCXREG1(0x400, bid)
#define CVMX_USBCX_HCINTMSKX(off, bid)  CVMX_USBCXREG2(0x50c, bid, off)
#define CVMX_USBCX_HCINTX(off, bid)     CVMX_USBCXREG2(0x508, bid, off)
#define CVMX_USBCX_HCSPLTX(off, bid)    CVMX_USBCXREG2(0x504, bid, off)
#define CVMX_USBCX_HCTSIZX(off, bid)    CVMX_USBCXREG2(0x510, bid, off)
#define CVMX_USBCX_HFIR(bid)            CVMX_USBCXREG1(0x404, bid)
#define CVMX_USBCX_HFNUM(bid)           CVMX_USBCXREG1(0x408, bid)
#define CVMX_USBCX_HPRT(bid)            CVMX_USBCXREG1(0x440, bid)
#define CVMX_USBCX_HPTXFSIZ(bid)        CVMX_USBCXREG1(0x100, bid)
#define CVMX_USBCX_HPTXSTS(bid)         CVMX_USBCXREG1(0x410, bid)

#define CVMX_USBNXBID1(bid) (((bid) & 1) * 0x10000000ull)
#define CVMX_USBNXBID2(bid) (((bid) & 1) * 0x100000000000ull)

#define CVMX_USBNXREG1(reg, bid) \
        (CVMX_ADD_IO_SEG(0x0001180068000000ull | reg) + CVMX_USBNXBID1(bid))
#define CVMX_USBNXREG2(reg, bid) \
        (CVMX_ADD_IO_SEG(0x00016F0000000000ull | reg) + CVMX_USBNXBID2(bid))

#define CVMX_USBNX_CLK_CTL(bid)         CVMX_USBNXREG1(0x10, bid)
#define CVMX_USBNX_DMA0_INB_CHN0(bid)   CVMX_USBNXREG2(0x818, bid)
#define CVMX_USBNX_DMA0_OUTB_CHN0(bid)  CVMX_USBNXREG2(0x858, bid)
#define CVMX_USBNX_USBP_CTL_STATUS(bid) CVMX_USBNXREG1(0x18, bid)

/**
 * cvmx_usbc#_gahbcfg
 *
 * Core AHB Configuration Register (GAHBCFG)
 *
 * This register can be used to configure the core after power-on or a change in
 * mode of operation. This register mainly contains AHB system-related
 * configuration parameters. The AHB is the processor interface to the O2P USB
 * core. In general, software need not know about this interface except to
 * program the values as specified.
 *
 * The application must program this register as part of the O2P USB core
 * initialization. Do not change this register after the initial programming.
 */
union cvmx_usbcx_gahbcfg {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gahbcfg_s
         * @ptxfemplvl: Periodic TxFIFO Empty Level (PTxFEmpLvl)
         *      Software should set this bit to 0x1.
         *      Indicates when the Periodic TxFIFO Empty Interrupt bit in the
         *      Core Interrupt register (GINTSTS.PTxFEmp) is triggered. This
         *      bit is used only in Slave mode.
         *      * 1'b0: GINTSTS.PTxFEmp interrupt indicates that the Periodic
         *      TxFIFO is half empty
         *      * 1'b1: GINTSTS.PTxFEmp interrupt indicates that the Periodic
         *      TxFIFO is completely empty
         * @nptxfemplvl: Non-Periodic TxFIFO Empty Level (NPTxFEmpLvl)
         *      Software should set this bit to 0x1.
         *      Indicates when the Non-Periodic TxFIFO Empty Interrupt bit in
         *      the Core Interrupt register (GINTSTS.NPTxFEmp) is triggered.
         *      This bit is used only in Slave mode.
         *      * 1'b0: GINTSTS.NPTxFEmp interrupt indicates that the Non-
         *      Periodic TxFIFO is half empty
         *      * 1'b1: GINTSTS.NPTxFEmp interrupt indicates that the Non-
         *      Periodic TxFIFO is completely empty
         * @dmaen: DMA Enable (DMAEn)
         *      * 1'b0: Core operates in Slave mode
         *      * 1'b1: Core operates in a DMA mode
         * @hbstlen: Burst Length/Type (HBstLen)
         *      This field has not effect and should be left as 0x0.
         * @glblintrmsk: Global Interrupt Mask (GlblIntrMsk)
         *      Software should set this field to 0x1.
         *      The application uses this bit to mask or unmask the interrupt
         *      line assertion to itself. Irrespective of this bit's setting,
         *      the interrupt status registers are updated by the core.
         *      * 1'b0: Mask the interrupt assertion to the application.
         *      * 1'b1: Unmask the interrupt assertion to the application.
         */
        struct cvmx_usbcx_gahbcfg_s {
                uint32_t reserved_9_31  : 23;
                uint32_t ptxfemplvl     : 1;
                uint32_t nptxfemplvl    : 1;
                uint32_t reserved_6_6   : 1;
                uint32_t dmaen          : 1;
                uint32_t hbstlen        : 4;
                uint32_t glblintrmsk    : 1;
        } s;
};

/**
 * cvmx_usbc#_ghwcfg3
 *
 * User HW Config3 Register (GHWCFG3)
 *
 * This register contains the configuration options of the O2P USB core.
 */
union cvmx_usbcx_ghwcfg3 {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_ghwcfg3_s
         * @dfifodepth: DFIFO Depth (DfifoDepth)
         *      This value is in terms of 32-bit words.
         *      * Minimum value is 32
         *      * Maximum value is 32768
         * @ahbphysync: AHB and PHY Synchronous (AhbPhySync)
         *      Indicates whether AHB and PHY clocks are synchronous to
         *      each other.
         *      * 1'b0: No
         *      * 1'b1: Yes
         *      This bit is tied to 1.
         * @rsttype: Reset Style for Clocked always Blocks in RTL (RstType)
         *      * 1'b0: Asynchronous reset is used in the core
         *      * 1'b1: Synchronous reset is used in the core
         * @optfeature: Optional Features Removed (OptFeature)
         *      Indicates whether the User ID register, GPIO interface ports,
         *      and SOF toggle and counter ports were removed for gate count
         *      optimization.
         * @vendor_control_interface_support: Vendor Control Interface Support
         *      * 1'b0: Vendor Control Interface is not available on the core.
         *      * 1'b1: Vendor Control Interface is available.
         * @i2c_selection: I2C Selection
         *      * 1'b0: I2C Interface is not available on the core.
         *      * 1'b1: I2C Interface is available on the core.
         * @otgen: OTG Function Enabled (OtgEn)
         *      The application uses this bit to indicate the O2P USB core's
         *      OTG capabilities.
         *      * 1'b0: Not OTG capable
         *      * 1'b1: OTG Capable
         * @pktsizewidth: Width of Packet Size Counters (PktSizeWidth)
         *      * 3'b000: 4 bits
         *      * 3'b001: 5 bits
         *      * 3'b010: 6 bits
         *      * 3'b011: 7 bits
         *      * 3'b100: 8 bits
         *      * 3'b101: 9 bits
         *      * 3'b110: 10 bits
         *      * Others: Reserved
         * @xfersizewidth: Width of Transfer Size Counters (XferSizeWidth)
         *      * 4'b0000: 11 bits
         *      * 4'b0001: 12 bits
         *      - ...
         *      * 4'b1000: 19 bits
         *      * Others: Reserved
         */
        struct cvmx_usbcx_ghwcfg3_s {
                uint32_t dfifodepth                             : 16;
                uint32_t reserved_13_15                         : 3;
                uint32_t ahbphysync                             : 1;
                uint32_t rsttype                                : 1;
                uint32_t optfeature                             : 1;
                uint32_t vendor_control_interface_support       : 1;
                uint32_t i2c_selection                          : 1;
                uint32_t otgen                                  : 1;
                uint32_t pktsizewidth                           : 3;
                uint32_t xfersizewidth                          : 4;
        } s;
};

/**
 * cvmx_usbc#_gintmsk
 *
 * Core Interrupt Mask Register (GINTMSK)
 *
 * This register works with the Core Interrupt register to interrupt the
 * application. When an interrupt bit is masked, the interrupt associated with
 * that bit will not be generated. However, the Core Interrupt (GINTSTS)
 * register bit corresponding to that interrupt will still be set.
 * Mask interrupt: 1'b0, Unmask interrupt: 1'b1
 */
union cvmx_usbcx_gintmsk {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gintmsk_s
         * @wkupintmsk: Resume/Remote Wakeup Detected Interrupt Mask
         *      (WkUpIntMsk)
         * @sessreqintmsk: Session Request/New Session Detected Interrupt Mask
         *      (SessReqIntMsk)
         * @disconnintmsk: Disconnect Detected Interrupt Mask (DisconnIntMsk)
         * @conidstschngmsk: Connector ID Status Change Mask (ConIDStsChngMsk)
         * @ptxfempmsk: Periodic TxFIFO Empty Mask (PTxFEmpMsk)
         * @hchintmsk: Host Channels Interrupt Mask (HChIntMsk)
         * @prtintmsk: Host Port Interrupt Mask (PrtIntMsk)
         * @fetsuspmsk: Data Fetch Suspended Mask (FetSuspMsk)
         * @incomplpmsk: Incomplete Periodic Transfer Mask (incomplPMsk)
         *      Incomplete Isochronous OUT Transfer Mask
         *      (incompISOOUTMsk)
         * @incompisoinmsk: Incomplete Isochronous IN Transfer Mask
         *                  (incompISOINMsk)
         * @oepintmsk: OUT Endpoints Interrupt Mask (OEPIntMsk)
         * @inepintmsk: IN Endpoints Interrupt Mask (INEPIntMsk)
         * @epmismsk: Endpoint Mismatch Interrupt Mask (EPMisMsk)
         * @eopfmsk: End of Periodic Frame Interrupt Mask (EOPFMsk)
         * @isooutdropmsk: Isochronous OUT Packet Dropped Interrupt Mask
         *      (ISOOutDropMsk)
         * @enumdonemsk: Enumeration Done Mask (EnumDoneMsk)
         * @usbrstmsk: USB Reset Mask (USBRstMsk)
         * @usbsuspmsk: USB Suspend Mask (USBSuspMsk)
         * @erlysuspmsk: Early Suspend Mask (ErlySuspMsk)
         * @i2cint: I2C Interrupt Mask (I2CINT)
         * @ulpickintmsk: ULPI Carkit Interrupt Mask (ULPICKINTMsk)
         *      I2C Carkit Interrupt Mask (I2CCKINTMsk)
         * @goutnakeffmsk: Global OUT NAK Effective Mask (GOUTNakEffMsk)
         * @ginnakeffmsk: Global Non-Periodic IN NAK Effective Mask
         *                (GINNakEffMsk)
         * @nptxfempmsk: Non-Periodic TxFIFO Empty Mask (NPTxFEmpMsk)
         * @rxflvlmsk: Receive FIFO Non-Empty Mask (RxFLvlMsk)
         * @sofmsk: Start of (micro)Frame Mask (SofMsk)
         * @otgintmsk: OTG Interrupt Mask (OTGIntMsk)
         * @modemismsk: Mode Mismatch Interrupt Mask (ModeMisMsk)
         */
        struct cvmx_usbcx_gintmsk_s {
                uint32_t wkupintmsk             : 1;
                uint32_t sessreqintmsk          : 1;
                uint32_t disconnintmsk          : 1;
                uint32_t conidstschngmsk        : 1;
                uint32_t reserved_27_27         : 1;
                uint32_t ptxfempmsk             : 1;
                uint32_t hchintmsk              : 1;
                uint32_t prtintmsk              : 1;
                uint32_t reserved_23_23         : 1;
                uint32_t fetsuspmsk             : 1;
                uint32_t incomplpmsk            : 1;
                uint32_t incompisoinmsk         : 1;
                uint32_t oepintmsk              : 1;
                uint32_t inepintmsk             : 1;
                uint32_t epmismsk               : 1;
                uint32_t reserved_16_16         : 1;
                uint32_t eopfmsk                : 1;
                uint32_t isooutdropmsk          : 1;
                uint32_t enumdonemsk            : 1;
                uint32_t usbrstmsk              : 1;
                uint32_t usbsuspmsk             : 1;
                uint32_t erlysuspmsk            : 1;
                uint32_t i2cint                 : 1;
                uint32_t ulpickintmsk           : 1;
                uint32_t goutnakeffmsk          : 1;
                uint32_t ginnakeffmsk           : 1;
                uint32_t nptxfempmsk            : 1;
                uint32_t rxflvlmsk              : 1;
                uint32_t sofmsk                 : 1;
                uint32_t otgintmsk              : 1;
                uint32_t modemismsk             : 1;
                uint32_t reserved_0_0           : 1;
        } s;
};

/**
 * cvmx_usbc#_gintsts
 *
 * Core Interrupt Register (GINTSTS)
 *
 * This register interrupts the application for system-level events in the
 * current mode of operation (Device mode or Host mode). It is shown in
 * Interrupt. Some of the bits in this register are valid only in Host mode,
 * while others are valid in Device mode only. This register also indicates the
 * current mode of operation. In order to clear the interrupt status bits of
 * type R_SS_WC, the application must write 1'b1 into the bit. The FIFO status
 * interrupts are read only; once software reads from or writes to the FIFO
 * while servicing these interrupts, FIFO interrupt conditions are cleared
 * automatically.
 */
union cvmx_usbcx_gintsts {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gintsts_s
         * @wkupint: Resume/Remote Wakeup Detected Interrupt (WkUpInt)
         *      In Device mode, this interrupt is asserted when a resume is
         *      detected on the USB. In Host mode, this interrupt is asserted
         *      when a remote wakeup is detected on the USB.
         *      For more information on how to use this interrupt, see "Partial
         *      Power-Down and Clock Gating Programming Model" on
         *      page 353.
         * @sessreqint: Session Request/New Session Detected Interrupt
         *              (SessReqInt)
         *      In Host mode, this interrupt is asserted when a session request
         *      is detected from the device. In Device mode, this interrupt is
         *      asserted when the utmiotg_bvalid signal goes high.
         *      For more information on how to use this interrupt, see "Partial
         *      Power-Down and Clock Gating Programming Model" on
         *      page 353.
         * @disconnint: Disconnect Detected Interrupt (DisconnInt)
         *      Asserted when a device disconnect is detected.
         * @conidstschng: Connector ID Status Change (ConIDStsChng)
         *      The core sets this bit when there is a change in connector ID
         *      status.
         * @ptxfemp: Periodic TxFIFO Empty (PTxFEmp)
         *      Asserted when the Periodic Transmit FIFO is either half or
         *      completely empty and there is space for at least one entry to be
         *      written in the Periodic Request Queue. The half or completely
         *      empty status is determined by the Periodic TxFIFO Empty Level
         *      bit in the Core AHB Configuration register
         *      (GAHBCFG.PTxFEmpLvl).
         * @hchint: Host Channels Interrupt (HChInt)
         *      The core sets this bit to indicate that an interrupt is pending
         *      on one of the channels of the core (in Host mode). The
         *      application must read the Host All Channels Interrupt (HAINT)
         *      register to determine the exact number of the channel on which
         *      the interrupt occurred, and then read the corresponding Host
         *      Channel-n Interrupt (HCINTn) register to determine the exact
         *      cause of the interrupt. The application must clear the
         *      appropriate status bit in the HCINTn register to clear this bit.
         * @prtint: Host Port Interrupt (PrtInt)
         *      The core sets this bit to indicate a change in port status of
         *      one of the O2P USB core ports in Host mode. The application must
         *      read the Host Port Control and Status (HPRT) register to
         *      determine the exact event that caused this interrupt. The
         *      application must clear the appropriate status bit in the Host
         *      Port Control and Status register to clear this bit.
         * @fetsusp: Data Fetch Suspended (FetSusp)
         *      This interrupt is valid only in DMA mode. This interrupt
         *      indicates that the core has stopped fetching data for IN
         *      endpoints due to the unavailability of TxFIFO space or Request
         *      Queue space. This interrupt is used by the application for an
         *      endpoint mismatch algorithm.
         * @incomplp: Incomplete Periodic Transfer (incomplP)
         *      In Host mode, the core sets this interrupt bit when there are
         *      incomplete periodic transactions still pending which are
         *      scheduled for the current microframe.
         *      Incomplete Isochronous OUT Transfer (incompISOOUT)
         *      The Device mode, the core sets this interrupt to indicate that
         *      there is at least one isochronous OUT endpoint on which the
         *      transfer is not completed in the current microframe. This
         *      interrupt is asserted along with the End of Periodic Frame
         *      Interrupt (EOPF) bit in this register.
         * @incompisoin: Incomplete Isochronous IN Transfer (incompISOIN)
         *      The core sets this interrupt to indicate that there is at least
         *      one isochronous IN endpoint on which the transfer is not
         *      completed in the current microframe. This interrupt is asserted
         *      along with the End of Periodic Frame Interrupt (EOPF) bit in
         *      this register.
         * @oepint: OUT Endpoints Interrupt (OEPInt)
         *      The core sets this bit to indicate that an interrupt is pending
         *      on one of the OUT endpoints of the core (in Device mode). The
         *      application must read the Device All Endpoints Interrupt
         *      (DAINT) register to determine the exact number of the OUT
         *      endpoint on which the interrupt occurred, and then read the
         *      corresponding Device OUT Endpoint-n Interrupt (DOEPINTn)
         *      register to determine the exact cause of the interrupt. The
         *      application must clear the appropriate status bit in the
         *      corresponding DOEPINTn register to clear this bit.
         * @iepint: IN Endpoints Interrupt (IEPInt)
         *      The core sets this bit to indicate that an interrupt is pending
         *      on one of the IN endpoints of the core (in Device mode). The
         *      application must read the Device All Endpoints Interrupt
         *      (DAINT) register to determine the exact number of the IN
         *      endpoint on which the interrupt occurred, and then read the
         *      corresponding Device IN Endpoint-n Interrupt (DIEPINTn)
         *      register to determine the exact cause of the interrupt. The
         *      application must clear the appropriate status bit in the
         *      corresponding DIEPINTn register to clear this bit.
         * @epmis: Endpoint Mismatch Interrupt (EPMis)
         *      Indicates that an IN token has been received for a non-periodic
         *      endpoint, but the data for another endpoint is present in the
         *      top of the Non-Periodic Transmit FIFO and the IN endpoint
         *      mismatch count programmed by the application has expired.
         * @eopf: End of Periodic Frame Interrupt (EOPF)
         *      Indicates that the period specified in the Periodic Frame
         *      Interval field of the Device Configuration register
         *      (DCFG.PerFrInt) has been reached in the current microframe.
         * @isooutdrop: Isochronous OUT Packet Dropped Interrupt (ISOOutDrop)
         *      The core sets this bit when it fails to write an isochronous OUT
         *      packet into the RxFIFO because the RxFIFO doesn't have
         *      enough space to accommodate a maximum packet size packet
         *      for the isochronous OUT endpoint.
         * @enumdone: Enumeration Done (EnumDone)
         *      The core sets this bit to indicate that speed enumeration is
         *      complete. The application must read the Device Status (DSTS)
         *      register to obtain the enumerated speed.
         * @usbrst: USB Reset (USBRst)
         *      The core sets this bit to indicate that a reset is detected on
         *      the USB.
         * @usbsusp: USB Suspend (USBSusp)
         *      The core sets this bit to indicate that a suspend was detected
         *      on the USB. The core enters the Suspended state when there
         *      is no activity on the phy_line_state_i signal for an extended
         *      period of time.
         * @erlysusp: Early Suspend (ErlySusp)
         *      The core sets this bit to indicate that an Idle state has been
         *      detected on the USB for 3 ms.
         * @i2cint: I2C Interrupt (I2CINT)
         *      This bit is always 0x0.
         * @ulpickint: ULPI Carkit Interrupt (ULPICKINT)
         *      This bit is always 0x0.
         * @goutnakeff: Global OUT NAK Effective (GOUTNakEff)
         *      Indicates that the Set Global OUT NAK bit in the Device Control
         *      register (DCTL.SGOUTNak), set by the application, has taken
         *      effect in the core. This bit can be cleared by writing the Clear
         *      Global OUT NAK bit in the Device Control register
         *      (DCTL.CGOUTNak).
         * @ginnakeff: Global IN Non-Periodic NAK Effective (GINNakEff)
         *      Indicates that the Set Global Non-Periodic IN NAK bit in the
         *      Device Control register (DCTL.SGNPInNak), set by the
         *      application, has taken effect in the core. That is, the core has
         *      sampled the Global IN NAK bit set by the application. This bit
         *      can be cleared by clearing the Clear Global Non-Periodic IN
         *      NAK bit in the Device Control register (DCTL.CGNPInNak).
         *      This interrupt does not necessarily mean that a NAK handshake
         *      is sent out on the USB. The STALL bit takes precedence over
         *      the NAK bit.
         * @nptxfemp: Non-Periodic TxFIFO Empty (NPTxFEmp)
         *      This interrupt is asserted when the Non-Periodic TxFIFO is
         *      either half or completely empty, and there is space for at least
         *      one entry to be written to the Non-Periodic Transmit Request
         *      Queue. The half or completely empty status is determined by
         *      the Non-Periodic TxFIFO Empty Level bit in the Core AHB
         *      Configuration register (GAHBCFG.NPTxFEmpLvl).
         * @rxflvl: RxFIFO Non-Empty (RxFLvl)
         *      Indicates that there is at least one packet pending to be read
         *      from the RxFIFO.
         * @sof: Start of (micro)Frame (Sof)
         *      In Host mode, the core sets this bit to indicate that an SOF
         *      (FS), micro-SOF (HS), or Keep-Alive (LS) is transmitted on the
         *      USB. The application must write a 1 to this bit to clear the
         *      interrupt.
         *      In Device mode, in the core sets this bit to indicate that an
         *      SOF token has been received on the USB. The application can read
         *      the Device Status register to get the current (micro)frame
         *      number. This interrupt is seen only when the core is operating
         *      at either HS or FS.
         * @otgint: OTG Interrupt (OTGInt)
         *      The core sets this bit to indicate an OTG protocol event. The
         *      application must read the OTG Interrupt Status (GOTGINT)
         *      register to determine the exact event that caused this
         *      interrupt. The application must clear the appropriate status bit
         *      in the GOTGINT register to clear this bit.
         * @modemis: Mode Mismatch Interrupt (ModeMis)
         *      The core sets this bit when the application is trying to access:
         *      * A Host mode register, when the core is operating in Device
         *      mode
         *      * A Device mode register, when the core is operating in Host
         *      mode
         *      The register access is completed on the AHB with an OKAY
         *      response, but is ignored by the core internally and doesn't
         *      affect the operation of the core.
         * @curmod: Current Mode of Operation (CurMod)
         *      Indicates the current mode of operation.
         *      * 1'b0: Device mode
         *      * 1'b1: Host mode
         */
        struct cvmx_usbcx_gintsts_s {
                uint32_t wkupint        : 1;
                uint32_t sessreqint     : 1;
                uint32_t disconnint     : 1;
                uint32_t conidstschng   : 1;
                uint32_t reserved_27_27 : 1;
                uint32_t ptxfemp        : 1;
                uint32_t hchint         : 1;
                uint32_t prtint         : 1;
                uint32_t reserved_23_23 : 1;
                uint32_t fetsusp        : 1;
                uint32_t incomplp       : 1;
                uint32_t incompisoin    : 1;
                uint32_t oepint         : 1;
                uint32_t iepint         : 1;
                uint32_t epmis          : 1;
                uint32_t reserved_16_16 : 1;
                uint32_t eopf           : 1;
                uint32_t isooutdrop     : 1;
                uint32_t enumdone       : 1;
                uint32_t usbrst         : 1;
                uint32_t usbsusp        : 1;
                uint32_t erlysusp       : 1;
                uint32_t i2cint         : 1;
                uint32_t ulpickint      : 1;
                uint32_t goutnakeff     : 1;
                uint32_t ginnakeff      : 1;
                uint32_t nptxfemp       : 1;
                uint32_t rxflvl         : 1;
                uint32_t sof            : 1;
                uint32_t otgint         : 1;
                uint32_t modemis        : 1;
                uint32_t curmod         : 1;
        } s;
};

/**
 * cvmx_usbc#_gnptxfsiz
 *
 * Non-Periodic Transmit FIFO Size Register (GNPTXFSIZ)
 *
 * The application can program the RAM size and the memory start address for the
 * Non-Periodic TxFIFO.
 */
union cvmx_usbcx_gnptxfsiz {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gnptxfsiz_s
         * @nptxfdep: Non-Periodic TxFIFO Depth (NPTxFDep)
         *      This value is in terms of 32-bit words.
         *      Minimum value is 16
         *      Maximum value is 32768
         * @nptxfstaddr: Non-Periodic Transmit RAM Start Address (NPTxFStAddr)
         *      This field contains the memory start address for Non-Periodic
         *      Transmit FIFO RAM.
         */
        struct cvmx_usbcx_gnptxfsiz_s {
                uint32_t nptxfdep       : 16;
                uint32_t nptxfstaddr    : 16;
        } s;
};

/**
 * cvmx_usbc#_gnptxsts
 *
 * Non-Periodic Transmit FIFO/Queue Status Register (GNPTXSTS)
 *
 * This read-only register contains the free space information for the
 * Non-Periodic TxFIFO and the Non-Periodic Transmit Request Queue.
 */
union cvmx_usbcx_gnptxsts {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gnptxsts_s
         * @nptxqtop: Top of the Non-Periodic Transmit Request Queue (NPTxQTop)
         *      Entry in the Non-Periodic Tx Request Queue that is currently
         *      being processed by the MAC.
         *      * Bits [30:27]: Channel/endpoint number
         *      * Bits [26:25]:
         *      - 2'b00: IN/OUT token
         *      - 2'b01: Zero-length transmit packet (device IN/host OUT)
         *      - 2'b10: PING/CSPLIT token
         *      - 2'b11: Channel halt command
         *      * Bit [24]: Terminate (last entry for selected channel/endpoint)
         * @nptxqspcavail: Non-Periodic Transmit Request Queue Space Available
         *      (NPTxQSpcAvail)
         *      Indicates the amount of free space available in the Non-
         *      Periodic Transmit Request Queue. This queue holds both IN
         *      and OUT requests in Host mode. Device mode has only IN
         *      requests.
         *      * 8'h0: Non-Periodic Transmit Request Queue is full
         *      * 8'h1: 1 location available
         *      * 8'h2: 2 locations available
         *      * n: n locations available (0..8)
         *      * Others: Reserved
         * @nptxfspcavail: Non-Periodic TxFIFO Space Avail (NPTxFSpcAvail)
         *      Indicates the amount of free space available in the Non-
         *      Periodic TxFIFO.
         *      Values are in terms of 32-bit words.
         *      * 16'h0: Non-Periodic TxFIFO is full
         *      * 16'h1: 1 word available
         *      * 16'h2: 2 words available
         *      * 16'hn: n words available (where 0..32768)
         *      * 16'h8000: 32768 words available
         *      * Others: Reserved
         */
        struct cvmx_usbcx_gnptxsts_s {
                uint32_t reserved_31_31 : 1;
                uint32_t nptxqtop       : 7;
                uint32_t nptxqspcavail  : 8;
                uint32_t nptxfspcavail  : 16;
        } s;
};

/**
 * cvmx_usbc#_grstctl
 *
 * Core Reset Register (GRSTCTL)
 *
 * The application uses this register to reset various hardware features inside
 * the core.
 */
union cvmx_usbcx_grstctl {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_grstctl_s
         * @ahbidle: AHB Master Idle (AHBIdle)
         *      Indicates that the AHB Master State Machine is in the IDLE
         *      condition.
         * @dmareq: DMA Request Signal (DMAReq)
         *      Indicates that the DMA request is in progress. Used for debug.
         * @txfnum: TxFIFO Number (TxFNum)
         *      This is the FIFO number that must be flushed using the TxFIFO
         *      Flush bit. This field must not be changed until the core clears
         *      the TxFIFO Flush bit.
         *      * 5'h0: Non-Periodic TxFIFO flush
         *      * 5'h1: Periodic TxFIFO 1 flush in Device mode or Periodic
         *      TxFIFO flush in Host mode
         *      * 5'h2: Periodic TxFIFO 2 flush in Device mode
         *      - ...
         *      * 5'hF: Periodic TxFIFO 15 flush in Device mode
         *      * 5'h10: Flush all the Periodic and Non-Periodic TxFIFOs in the
         *      core
         * @txfflsh: TxFIFO Flush (TxFFlsh)
         *      This bit selectively flushes a single or all transmit FIFOs, but
         *      cannot do so if the core is in the midst of a transaction.
         *      The application must only write this bit after checking that the
         *      core is neither writing to the TxFIFO nor reading from the
         *      TxFIFO.
         *      The application must wait until the core clears this bit before
         *      performing any operations. This bit takes 8 clocks (of phy_clk
         *      or hclk, whichever is slower) to clear.
         * @rxfflsh: RxFIFO Flush (RxFFlsh)
         *      The application can flush the entire RxFIFO using this bit, but
         *      must first ensure that the core is not in the middle of a
         *      transaction.
         *      The application must only write to this bit after checking that
         *      the core is neither reading from the RxFIFO nor writing to the
         *      RxFIFO.
         *      The application must wait until the bit is cleared before
         *      performing any other operations. This bit will take 8 clocks
         *      (slowest of PHY or AHB clock) to clear.
         * @intknqflsh: IN Token Sequence Learning Queue Flush (INTknQFlsh)
         *      The application writes this bit to flush the IN Token Sequence
         *      Learning Queue.
         * @frmcntrrst: Host Frame Counter Reset (FrmCntrRst)
         *      The application writes this bit to reset the (micro)frame number
         *      counter inside the core. When the (micro)frame counter is reset,
         *      the subsequent SOF sent out by the core will have a
         *      (micro)frame number of 0.
         * @hsftrst: HClk Soft Reset (HSftRst)
         *      The application uses this bit to flush the control logic in the
         *      AHB Clock domain. Only AHB Clock Domain pipelines are reset.
         *      * FIFOs are not flushed with this bit.
         *      * All state machines in the AHB clock domain are reset to the
         *      Idle state after terminating the transactions on the AHB,
         *      following the protocol.
         *      * CSR control bits used by the AHB clock domain state
         *      machines are cleared.
         *      * To clear this interrupt, status mask bits that control the
         *      interrupt status and are generated by the AHB clock domain
         *      state machine are cleared.
         *      * Because interrupt status bits are not cleared, the application
         *      can get the status of any core events that occurred after it set
         *      this bit.
         *      This is a self-clearing bit that the core clears after all
         *      necessary logic is reset in the core. This may take several
         *      clocks, depending on the core's current state.
         * @csftrst: Core Soft Reset (CSftRst)
         *      Resets the hclk and phy_clock domains as follows:
         *      * Clears the interrupts and all the CSR registers except the
         *      following register bits:
         *      - PCGCCTL.RstPdwnModule
         *      - PCGCCTL.GateHclk
         *      - PCGCCTL.PwrClmp
         *      - PCGCCTL.StopPPhyLPwrClkSelclk
         *      - GUSBCFG.PhyLPwrClkSel
         *      - GUSBCFG.DDRSel
         *      - GUSBCFG.PHYSel
         *      - GUSBCFG.FSIntf
         *      - GUSBCFG.ULPI_UTMI_Sel
         *      - GUSBCFG.PHYIf
         *      - HCFG.FSLSPclkSel
         *      - DCFG.DevSpd
         *      * All module state machines (except the AHB Slave Unit) are
         *      reset to the IDLE state, and all the transmit FIFOs and the
         *      receive FIFO are flushed.
         *      * Any transactions on the AHB Master are terminated as soon
         *      as possible, after gracefully completing the last data phase of
         *      an AHB transfer. Any transactions on the USB are terminated
         *      immediately.
         *      The application can write to this bit any time it wants to reset
         *      the core. This is a self-clearing bit and the core clears this
         *      bit after all the necessary logic is reset in the core, which
         *      may take several clocks, depending on the current state of the
         *      core. Once this bit is cleared software should wait at least 3
         *      PHY clocks before doing any access to the PHY domain
         *      (synchronization delay). Software should also should check that
         *      bit 31 of this register is 1 (AHB Master is IDLE) before
         *      starting any operation.
         *      Typically software reset is used during software development
         *      and also when you dynamically change the PHY selection bits
         *      in the USB configuration registers listed above. When you
         *      change the PHY, the corresponding clock for the PHY is
         *      selected and used in the PHY domain. Once a new clock is
         *      selected, the PHY domain has to be reset for proper operation.
         */
        struct cvmx_usbcx_grstctl_s {
                uint32_t ahbidle        : 1;
                uint32_t dmareq         : 1;
                uint32_t reserved_11_29 : 19;
                uint32_t txfnum         : 5;
                uint32_t txfflsh        : 1;
                uint32_t rxfflsh        : 1;
                uint32_t intknqflsh     : 1;
                uint32_t frmcntrrst     : 1;
                uint32_t hsftrst        : 1;
                uint32_t csftrst        : 1;
        } s;
};

/**
 * cvmx_usbc#_grxfsiz
 *
 * Receive FIFO Size Register (GRXFSIZ)
 *
 * The application can program the RAM size that must be allocated to the
 * RxFIFO.
 */
union cvmx_usbcx_grxfsiz {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_grxfsiz_s
         * @rxfdep: RxFIFO Depth (RxFDep)
         *      This value is in terms of 32-bit words.
         *      * Minimum value is 16
         *      * Maximum value is 32768
         */
        struct cvmx_usbcx_grxfsiz_s {
                uint32_t reserved_16_31 : 16;
                uint32_t rxfdep         : 16;
        } s;
};

/**
 * cvmx_usbc#_grxstsph
 *
 * Receive Status Read and Pop Register, Host Mode (GRXSTSPH)
 *
 * A read to the Receive Status Read and Pop register returns and additionally
 * pops the top data entry out of the RxFIFO.
 * This Description is only valid when the core is in Host Mode. For Device Mode
 * use USBC_GRXSTSPD instead.
 * NOTE: GRXSTSPH and GRXSTSPD are physically the same register and share the
 *       same offset in the O2P USB core. The offset difference shown in this
 *       document is for software clarity and is actually ignored by the
 *       hardware.
 */
union cvmx_usbcx_grxstsph {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_grxstsph_s
         * @pktsts: Packet Status (PktSts)
         *      Indicates the status of the received packet
         *      * 4'b0010: IN data packet received
         *      * 4'b0011: IN transfer completed (triggers an interrupt)
         *      * 4'b0101: Data toggle error (triggers an interrupt)
         *      * 4'b0111: Channel halted (triggers an interrupt)
         *      * Others: Reserved
         * @dpid: Data PID (DPID)
         *      * 2'b00: DATA0
         *      * 2'b10: DATA1
         *      * 2'b01: DATA2
         *      * 2'b11: MDATA
         * @bcnt: Byte Count (BCnt)
         *      Indicates the byte count of the received IN data packet
         * @chnum: Channel Number (ChNum)
         *      Indicates the channel number to which the current received
         *      packet belongs.
         */
        struct cvmx_usbcx_grxstsph_s {
                uint32_t reserved_21_31 : 11;
                uint32_t pktsts         : 4;
                uint32_t dpid           : 2;
                uint32_t bcnt           : 11;
                uint32_t chnum          : 4;
        } s;
};

/**
 * cvmx_usbc#_gusbcfg
 *
 * Core USB Configuration Register (GUSBCFG)
 *
 * This register can be used to configure the core after power-on or a changing
 * to Host mode or Device mode. It contains USB and USB-PHY related
 * configuration parameters. The application must program this register before
 * starting any transactions on either the AHB or the USB. Do not make changes
 * to this register after the initial programming.
 */
union cvmx_usbcx_gusbcfg {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_gusbcfg_s
         * @otgi2csel: UTMIFS or I2C Interface Select (OtgI2CSel)
         *      This bit is always 0x0.
         * @phylpwrclksel: PHY Low-Power Clock Select (PhyLPwrClkSel)
         *      Software should set this bit to 0x0.
         *      Selects either 480-MHz or 48-MHz (low-power) PHY mode. In
         *      FS and LS modes, the PHY can usually operate on a 48-MHz
         *      clock to save power.
         *      * 1'b0: 480-MHz Internal PLL clock
         *      * 1'b1: 48-MHz External Clock
         *      In 480 MHz mode, the UTMI interface operates at either 60 or
         *      30-MHz, depending upon whether 8- or 16-bit data width is
         *      selected. In 48-MHz mode, the UTMI interface operates at 48
         *      MHz in FS mode and at either 48 or 6 MHz in LS mode
         *      (depending on the PHY vendor).
         *      This bit drives the utmi_fsls_low_power core output signal, and
         *      is valid only for UTMI+ PHYs.
         * @usbtrdtim: USB Turnaround Time (USBTrdTim)
         *      Sets the turnaround time in PHY clocks.
         *      Specifies the response time for a MAC request to the Packet
         *      FIFO Controller (PFC) to fetch data from the DFIFO (SPRAM).
         *      This must be programmed to 0x5.
         * @hnpcap: HNP-Capable (HNPCap)
         *      This bit is always 0x0.
         * @srpcap: SRP-Capable (SRPCap)
         *      This bit is always 0x0.
         * @ddrsel: ULPI DDR Select (DDRSel)
         *      Software should set this bit to 0x0.
         * @physel: USB 2.0 High-Speed PHY or USB 1.1 Full-Speed Serial
         *      Software should set this bit to 0x0.
         * @fsintf: Full-Speed Serial Interface Select (FSIntf)
         *      Software should set this bit to 0x0.
         * @ulpi_utmi_sel: ULPI or UTMI+ Select (ULPI_UTMI_Sel)
         *      This bit is always 0x0.
         * @phyif: PHY Interface (PHYIf)
         *      This bit is always 0x1.
         * @toutcal: HS/FS Timeout Calibration (TOutCal)
         *      The number of PHY clocks that the application programs in this
         *      field is added to the high-speed/full-speed interpacket timeout
         *      duration in the core to account for any additional delays
         *      introduced by the PHY. This may be required, since the delay
         *      introduced by the PHY in generating the linestate condition may
         *      vary from one PHY to another.
         *      The USB standard timeout value for high-speed operation is
         *      736 to 816 (inclusive) bit times. The USB standard timeout
         *      value for full-speed operation is 16 to 18 (inclusive) bit
         *      times. The application must program this field based on the
         *      speed of enumeration. The number of bit times added per PHY
         *      clock are:
         *      High-speed operation:
         *      * One 30-MHz PHY clock = 16 bit times
         *      * One 60-MHz PHY clock = 8 bit times
         *      Full-speed operation:
         *      * One 30-MHz PHY clock = 0.4 bit times
         *      * One 60-MHz PHY clock = 0.2 bit times
         *      * One 48-MHz PHY clock = 0.25 bit times
         */
        struct cvmx_usbcx_gusbcfg_s {
                uint32_t reserved_17_31 : 15;
                uint32_t otgi2csel      : 1;
                uint32_t phylpwrclksel  : 1;
                uint32_t reserved_14_14 : 1;
                uint32_t usbtrdtim      : 4;
                uint32_t hnpcap         : 1;
                uint32_t srpcap         : 1;
                uint32_t ddrsel         : 1;
                uint32_t physel         : 1;
                uint32_t fsintf         : 1;
                uint32_t ulpi_utmi_sel  : 1;
                uint32_t phyif          : 1;
                uint32_t toutcal        : 3;
        } s;
};

/**
 * cvmx_usbc#_haint
 *
 * Host All Channels Interrupt Register (HAINT)
 *
 * When a significant event occurs on a channel, the Host All Channels Interrupt
 * register interrupts the application using the Host Channels Interrupt bit of
 * the Core Interrupt register (GINTSTS.HChInt). This is shown in Interrupt.
 * There is one interrupt bit per channel, up to a maximum of 16 bits. Bits in
 * this register are set and cleared when the application sets and clears bits
 * in the corresponding Host Channel-n Interrupt register.
 */
union cvmx_usbcx_haint {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_haint_s
         * @haint: Channel Interrupts (HAINT)
         *      One bit per channel: Bit 0 for Channel 0, bit 15 for Channel 15
         */
        struct cvmx_usbcx_haint_s {
                uint32_t reserved_16_31 : 16;
                uint32_t haint          : 16;
        } s;
};

/**
 * cvmx_usbc#_haintmsk
 *
 * Host All Channels Interrupt Mask Register (HAINTMSK)
 *
 * The Host All Channel Interrupt Mask register works with the Host All Channel
 * Interrupt register to interrupt the application when an event occurs on a
 * channel. There is one interrupt mask bit per channel, up to a maximum of 16
 * bits.
 * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
 */
union cvmx_usbcx_haintmsk {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_haintmsk_s
         * @haintmsk: Channel Interrupt Mask (HAINTMsk)
         *      One bit per channel: Bit 0 for channel 0, bit 15 for channel 15
         */
        struct cvmx_usbcx_haintmsk_s {
                uint32_t reserved_16_31 : 16;
                uint32_t haintmsk       : 16;
        } s;
};

/**
 * cvmx_usbc#_hcchar#
 *
 * Host Channel-n Characteristics Register (HCCHAR)
 *
 */
union cvmx_usbcx_hccharx {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hccharx_s
         * @chena: Channel Enable (ChEna)
         *      This field is set by the application and cleared by the OTG
         *      host.
         *      * 1'b0: Channel disabled
         *      * 1'b1: Channel enabled
         * @chdis: Channel Disable (ChDis)
         *      The application sets this bit to stop transmitting/receiving
         *      data on a channel, even before the transfer for that channel is
         *      complete. The application must wait for the Channel Disabled
         *      interrupt before treating the channel as disabled.
         * @oddfrm: Odd Frame (OddFrm)
         *      This field is set (reset) by the application to indicate that
         *      the OTG host must perform a transfer in an odd (micro)frame.
         *      This field is applicable for only periodic (isochronous and
         *      interrupt) transactions.
         *      * 1'b0: Even (micro)frame
         *      * 1'b1: Odd (micro)frame
         * @devaddr: Device Address (DevAddr)
         *      This field selects the specific device serving as the data
         *      source or sink.
         * @ec: Multi Count (MC) / Error Count (EC)
         *      When the Split Enable bit of the Host Channel-n Split Control
         *      register (HCSPLTn.SpltEna) is reset (1'b0), this field indicates
         *      to the host the number of transactions that should be executed
         *      per microframe for this endpoint.
         *      * 2'b00: Reserved. This field yields undefined results.
         *      * 2'b01: 1 transaction
         *      * 2'b10: 2 transactions to be issued for this endpoint per
         *      microframe
         *      * 2'b11: 3 transactions to be issued for this endpoint per
         *      microframe
         *      When HCSPLTn.SpltEna is set (1'b1), this field indicates the
         *      number of immediate retries to be performed for a periodic split
         *      transactions on transaction errors. This field must be set to at
         *      least 2'b01.
         * @eptype: Endpoint Type (EPType)
         *      Indicates the transfer type selected.
         *      * 2'b00: Control
         *      * 2'b01: Isochronous
         *      * 2'b10: Bulk
         *      * 2'b11: Interrupt
         * @lspddev: Low-Speed Device (LSpdDev)
         *      This field is set by the application to indicate that this
         *      channel is communicating to a low-speed device.
         * @epdir: Endpoint Direction (EPDir)
         *      Indicates whether the transaction is IN or OUT.
         *      * 1'b0: OUT
         *      * 1'b1: IN
         * @epnum: Endpoint Number (EPNum)
         *      Indicates the endpoint number on the device serving as the
         *      data source or sink.
         * @mps: Maximum Packet Size (MPS)
         *      Indicates the maximum packet size of the associated endpoint.
         */
        struct cvmx_usbcx_hccharx_s {
                uint32_t chena          : 1;
                uint32_t chdis          : 1;
                uint32_t oddfrm         : 1;
                uint32_t devaddr        : 7;
                uint32_t ec             : 2;
                uint32_t eptype         : 2;
                uint32_t lspddev        : 1;
                uint32_t reserved_16_16 : 1;
                uint32_t epdir          : 1;
                uint32_t epnum          : 4;
                uint32_t mps            : 11;
        } s;
};

/**
 * cvmx_usbc#_hcfg
 *
 * Host Configuration Register (HCFG)
 *
 * This register configures the core after power-on. Do not make changes to this
 * register after initializing the host.
 */
union cvmx_usbcx_hcfg {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hcfg_s
         * @fslssupp: FS- and LS-Only Support (FSLSSupp)
         *      The application uses this bit to control the core's enumeration
         *      speed. Using this bit, the application can make the core
         *      enumerate as a FS host, even if the connected device supports
         *      HS traffic. Do not make changes to this field after initial
         *      programming.
         *      * 1'b0: HS/FS/LS, based on the maximum speed supported by
         *      the connected device
         *      * 1'b1: FS/LS-only, even if the connected device can support HS
         * @fslspclksel: FS/LS PHY Clock Select (FSLSPclkSel)
         *      When the core is in FS Host mode
         *      * 2'b00: PHY clock is running at 30/60 MHz
         *      * 2'b01: PHY clock is running at 48 MHz
         *      * Others: Reserved
         *      When the core is in LS Host mode
         *      * 2'b00: PHY clock is running at 30/60 MHz. When the
         *      UTMI+/ULPI PHY Low Power mode is not selected, use
         *      30/60 MHz.
         *      * 2'b01: PHY clock is running at 48 MHz. When the UTMI+
         *      PHY Low Power mode is selected, use 48MHz if the PHY
         *      supplies a 48 MHz clock during LS mode.
         *      * 2'b10: PHY clock is running at 6 MHz. In USB 1.1 FS mode,
         *      use 6 MHz when the UTMI+ PHY Low Power mode is
         *      selected and the PHY supplies a 6 MHz clock during LS
         *      mode. If you select a 6 MHz clock during LS mode, you must
         *      do a soft reset.
         *      * 2'b11: Reserved
         */
        struct cvmx_usbcx_hcfg_s {
                uint32_t reserved_3_31  : 29;
                uint32_t fslssupp       : 1;
                uint32_t fslspclksel    : 2;
        } s;
};

/**
 * cvmx_usbc#_hcint#
 *
 * Host Channel-n Interrupt Register (HCINT)
 *
 * This register indicates the status of a channel with respect to USB- and
 * AHB-related events. The application must read this register when the Host
 * Channels Interrupt bit of the Core Interrupt register (GINTSTS.HChInt) is
 * set. Before the application can read this register, it must first read
 * the Host All Channels Interrupt (HAINT) register to get the exact channel
 * number for the Host Channel-n Interrupt register. The application must clear
 * the appropriate bit in this register to clear the corresponding bits in the
 * HAINT and GINTSTS registers.
 */
union cvmx_usbcx_hcintx {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hcintx_s
         * @datatglerr: Data Toggle Error (DataTglErr)
         * @frmovrun: Frame Overrun (FrmOvrun)
         * @bblerr: Babble Error (BblErr)
         * @xacterr: Transaction Error (XactErr)
         * @nyet: NYET Response Received Interrupt (NYET)
         * @ack: ACK Response Received Interrupt (ACK)
         * @nak: NAK Response Received Interrupt (NAK)
         * @stall: STALL Response Received Interrupt (STALL)
         * @ahberr: This bit is always 0x0.
         * @chhltd: Channel Halted (ChHltd)
         *      Indicates the transfer completed abnormally either because of
         *      any USB transaction error or in response to disable request by
         *      the application.
         * @xfercompl: Transfer Completed (XferCompl)
         *      Transfer completed normally without any errors.
         */
        struct cvmx_usbcx_hcintx_s {
                uint32_t reserved_11_31 : 21;
                uint32_t datatglerr     : 1;
                uint32_t frmovrun       : 1;
                uint32_t bblerr         : 1;
                uint32_t xacterr        : 1;
                uint32_t nyet           : 1;
                uint32_t ack            : 1;
                uint32_t nak            : 1;
                uint32_t stall          : 1;
                uint32_t ahberr         : 1;
                uint32_t chhltd         : 1;
                uint32_t xfercompl      : 1;
        } s;
};

/**
 * cvmx_usbc#_hcintmsk#
 *
 * Host Channel-n Interrupt Mask Register (HCINTMSKn)
 *
 * This register reflects the mask for each channel status described in the
 * previous section.
 * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
 */
union cvmx_usbcx_hcintmskx {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hcintmskx_s
         * @datatglerrmsk: Data Toggle Error Mask (DataTglErrMsk)
         * @frmovrunmsk: Frame Overrun Mask (FrmOvrunMsk)
         * @bblerrmsk: Babble Error Mask (BblErrMsk)
         * @xacterrmsk: Transaction Error Mask (XactErrMsk)
         * @nyetmsk: NYET Response Received Interrupt Mask (NyetMsk)
         * @ackmsk: ACK Response Received Interrupt Mask (AckMsk)
         * @nakmsk: NAK Response Received Interrupt Mask (NakMsk)
         * @stallmsk: STALL Response Received Interrupt Mask (StallMsk)
         * @ahberrmsk: AHB Error Mask (AHBErrMsk)
         * @chhltdmsk: Channel Halted Mask (ChHltdMsk)
         * @xfercomplmsk: Transfer Completed Mask (XferComplMsk)
         */
        struct cvmx_usbcx_hcintmskx_s {
                uint32_t reserved_11_31 : 21;
                uint32_t datatglerrmsk  : 1;
                uint32_t frmovrunmsk    : 1;
                uint32_t bblerrmsk      : 1;
                uint32_t xacterrmsk     : 1;
                uint32_t nyetmsk        : 1;
                uint32_t ackmsk         : 1;
                uint32_t nakmsk         : 1;
                uint32_t stallmsk       : 1;
                uint32_t ahberrmsk      : 1;
                uint32_t chhltdmsk      : 1;
                uint32_t xfercomplmsk   : 1;
        } s;
};

/**
 * cvmx_usbc#_hcsplt#
 *
 * Host Channel-n Split Control Register (HCSPLT)
 *
 */
union cvmx_usbcx_hcspltx {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hcspltx_s
         * @spltena: Split Enable (SpltEna)
         *      The application sets this field to indicate that this channel is
         *      enabled to perform split transactions.
         * @compsplt: Do Complete Split (CompSplt)
         *      The application sets this field to request the OTG host to
         *      perform a complete split transaction.
         * @xactpos: Transaction Position (XactPos)
         *      This field is used to determine whether to send all, first,
         *      middle, or last payloads with each OUT transaction.
         *      * 2'b11: All. This is the entire data payload is of this
         *      transaction (which is less than or equal to 188 bytes).
         *      * 2'b10: Begin. This is the first data payload of this
         *      transaction (which is larger than 188 bytes).
         *      * 2'b00: Mid. This is the middle payload of this transaction
         *      (which is larger than 188 bytes).
         *      * 2'b01: End. This is the last payload of this transaction
         *      (which is larger than 188 bytes).
         * @hubaddr: Hub Address (HubAddr)
         *      This field holds the device address of the transaction
         *      translator's hub.
         * @prtaddr: Port Address (PrtAddr)
         *      This field is the port number of the recipient transaction
         *      translator.
         */
        struct cvmx_usbcx_hcspltx_s {
                uint32_t spltena        : 1;
                uint32_t reserved_17_30 : 14;
                uint32_t compsplt       : 1;
                uint32_t xactpos        : 2;
                uint32_t hubaddr        : 7;
                uint32_t prtaddr        : 7;
        } s;
};

/**
 * cvmx_usbc#_hctsiz#
 *
 * Host Channel-n Transfer Size Register (HCTSIZ)
 *
 */
union cvmx_usbcx_hctsizx {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hctsizx_s
         * @dopng: Do Ping (DoPng)
         *      Setting this field to 1 directs the host to do PING protocol.
         * @pid: PID (Pid)
         *      The application programs this field with the type of PID to use
         *      for the initial transaction. The host will maintain this field
         *      for the rest of the transfer.
         *      * 2'b00: DATA0
         *      * 2'b01: DATA2
         *      * 2'b10: DATA1
         *      * 2'b11: MDATA (non-control)/SETUP (control)
         * @pktcnt: Packet Count (PktCnt)
         *      This field is programmed by the application with the expected
         *      number of packets to be transmitted (OUT) or received (IN).
         *      The host decrements this count on every successful
         *      transmission or reception of an OUT/IN packet. Once this count
         *      reaches zero, the application is interrupted to indicate normal
         *      completion.
         * @xfersize: Transfer Size (XferSize)
         *      For an OUT, this field is the number of data bytes the host will
         *      send during the transfer.
         *      For an IN, this field is the buffer size that the application
         *      has reserved for the transfer. The application is expected to
         *      program this field as an integer multiple of the maximum packet
         *      size for IN transactions (periodic and non-periodic).
         */
        struct cvmx_usbcx_hctsizx_s {
                uint32_t dopng          : 1;
                uint32_t pid            : 2;
                uint32_t pktcnt         : 10;
                uint32_t xfersize       : 19;
        } s;
};

/**
 * cvmx_usbc#_hfir
 *
 * Host Frame Interval Register (HFIR)
 *
 * This register stores the frame interval information for the current speed to
 * which the O2P USB core has enumerated.
 */
union cvmx_usbcx_hfir {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hfir_s
         * @frint: Frame Interval (FrInt)
         *      The value that the application programs to this field specifies
         *      the interval between two consecutive SOFs (FS) or micro-
         *      SOFs (HS) or Keep-Alive tokens (HS). This field contains the
         *      number of PHY clocks that constitute the required frame
         *      interval. The default value set in this field for a FS operation
         *      when the PHY clock frequency is 60 MHz. The application can
         *      write a value to this register only after the Port Enable bit of
         *      the Host Port Control and Status register (HPRT.PrtEnaPort)
         *      has been set. If no value is programmed, the core calculates
         *      the value based on the PHY clock specified in the FS/LS PHY
         *      Clock Select field of the Host Configuration register
         *      (HCFG.FSLSPclkSel). Do not change the value of this field
         *      after the initial configuration.
         *      * 125 us (PHY clock frequency for HS)
         *      * 1 ms (PHY clock frequency for FS/LS)
         */
        struct cvmx_usbcx_hfir_s {
                uint32_t reserved_16_31 : 16;
                uint32_t frint          : 16;
        } s;
};

/**
 * cvmx_usbc#_hfnum
 *
 * Host Frame Number/Frame Time Remaining Register (HFNUM)
 *
 * This register indicates the current frame number.
 * It also indicates the time remaining (in terms of the number of PHY clocks)
 * in the current (micro)frame.
 */
union cvmx_usbcx_hfnum {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hfnum_s
         * @frrem: Frame Time Remaining (FrRem)
         *      Indicates the amount of time remaining in the current
         *      microframe (HS) or frame (FS/LS), in terms of PHY clocks.
         *      This field decrements on each PHY clock. When it reaches
         *      zero, this field is reloaded with the value in the Frame
         *      Interval register and a new SOF is transmitted on the USB.
         * @frnum: Frame Number (FrNum)
         *      This field increments when a new SOF is transmitted on the
         *      USB, and is reset to 0 when it reaches 16'h3FFF.
         */
        struct cvmx_usbcx_hfnum_s {
                uint32_t frrem  : 16;
                uint32_t frnum  : 16;
        } s;
};

/**
 * cvmx_usbc#_hprt
 *
 * Host Port Control and Status Register (HPRT)
 *
 * This register is available in both Host and Device modes.
 * Currently, the OTG Host supports only one port.
 * A single register holds USB port-related information such as USB reset,
 * enable, suspend, resume, connect status, and test mode for each port. The
 * R_SS_WC bits in this register can trigger an interrupt to the application
 * through the Host Port Interrupt bit of the Core Interrupt register
 * (GINTSTS.PrtInt). On a Port Interrupt, the application must read this
 * register and clear the bit that caused the interrupt. For the R_SS_WC bits,
 * the application must write a 1 to the bit to clear the interrupt.
 */
union cvmx_usbcx_hprt {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hprt_s
         * @prtspd: Port Speed (PrtSpd)
         *      Indicates the speed of the device attached to this port.
         *      * 2'b00: High speed
         *      * 2'b01: Full speed
         *      * 2'b10: Low speed
         *      * 2'b11: Reserved
         * @prttstctl: Port Test Control (PrtTstCtl)
         *      The application writes a nonzero value to this field to put
         *      the port into a Test mode, and the corresponding pattern is
         *      signaled on the port.
         *      * 4'b0000: Test mode disabled
         *      * 4'b0001: Test_J mode
         *      * 4'b0010: Test_K mode
         *      * 4'b0011: Test_SE0_NAK mode
         *      * 4'b0100: Test_Packet mode
         *      * 4'b0101: Test_Force_Enable
         *      * Others: Reserved
         *      PrtSpd must be zero (i.e. the interface must be in high-speed
         *      mode) to use the PrtTstCtl test modes.
         * @prtpwr: Port Power (PrtPwr)
         *      The application uses this field to control power to this port,
         *      and the core clears this bit on an overcurrent condition.
         *      * 1'b0: Power off
         *      * 1'b1: Power on
         * @prtlnsts: Port Line Status (PrtLnSts)
         *      Indicates the current logic level USB data lines
         *      * Bit [10]: Logic level of D-
         *      * Bit [11]: Logic level of D+
         * @prtrst: Port Reset (PrtRst)
         *      When the application sets this bit, a reset sequence is
         *      started on this port. The application must time the reset
         *      period and clear this bit after the reset sequence is
         *      complete.
         *      * 1'b0: Port not in reset
         *      * 1'b1: Port in reset
         *      The application must leave this bit set for at least a
         *      minimum duration mentioned below to start a reset on the
         *      port. The application can leave it set for another 10 ms in
         *      addition to the required minimum duration, before clearing
         *      the bit, even though there is no maximum limit set by the
         *      USB standard.
         *      * High speed: 50 ms
         *      * Full speed/Low speed: 10 ms
         * @prtsusp: Port Suspend (PrtSusp)
         *      The application sets this bit to put this port in Suspend
         *      mode. The core only stops sending SOFs when this is set.
         *      To stop the PHY clock, the application must set the Port
         *      Clock Stop bit, which will assert the suspend input pin of
         *      the PHY.
         *      The read value of this bit reflects the current suspend
         *      status of the port. This bit is cleared by the core after a
         *      remote wakeup signal is detected or the application sets
         *      the Port Reset bit or Port Resume bit in this register or the
         *      Resume/Remote Wakeup Detected Interrupt bit or
         *      Disconnect Detected Interrupt bit in the Core Interrupt
         *      register (GINTSTS.WkUpInt or GINTSTS.DisconnInt,
         *      respectively).
         *      * 1'b0: Port not in Suspend mode
         *      * 1'b1: Port in Suspend mode
         * @prtres: Port Resume (PrtRes)
         *      The application sets this bit to drive resume signaling on
         *      the port. The core continues to drive the resume signal
         *      until the application clears this bit.
         *      If the core detects a USB remote wakeup sequence, as
         *      indicated by the Port Resume/Remote Wakeup Detected
         *      Interrupt bit of the Core Interrupt register
         *      (GINTSTS.WkUpInt), the core starts driving resume
         *      signaling without application intervention and clears this bit
         *      when it detects a disconnect condition. The read value of
         *      this bit indicates whether the core is currently driving
         *      resume signaling.
         *      * 1'b0: No resume driven
         *      * 1'b1: Resume driven
         * @prtovrcurrchng: Port Overcurrent Change (PrtOvrCurrChng)
         *      The core sets this bit when the status of the Port
         *      Overcurrent Active bit (bit 4) in this register changes.
         * @prtovrcurract: Port Overcurrent Active (PrtOvrCurrAct)
         *      Indicates the overcurrent condition of the port.
         *      * 1'b0: No overcurrent condition
         *      * 1'b1: Overcurrent condition
         * @prtenchng: Port Enable/Disable Change (PrtEnChng)
         *      The core sets this bit when the status of the Port Enable bit
         *      [2] of this register changes.
         * @prtena: Port Enable (PrtEna)
         *      A port is enabled only by the core after a reset sequence,
         *      and is disabled by an overcurrent condition, a disconnect
         *      condition, or by the application clearing this bit. The
         *      application cannot set this bit by a register write. It can only
         *      clear it to disable the port. This bit does not trigger any
         *      interrupt to the application.
         *      * 1'b0: Port disabled
         *      * 1'b1: Port enabled
         * @prtconndet: Port Connect Detected (PrtConnDet)
         *      The core sets this bit when a device connection is detected
         *      to trigger an interrupt to the application using the Host Port
         *      Interrupt bit of the Core Interrupt register (GINTSTS.PrtInt).
         *      The application must write a 1 to this bit to clear the
         *      interrupt.
         * @prtconnsts: Port Connect Status (PrtConnSts)
         *      * 0: No device is attached to the port.
         *      * 1: A device is attached to the port.
         */
        struct cvmx_usbcx_hprt_s {
                uint32_t reserved_19_31 : 13;
                uint32_t prtspd         : 2;
                uint32_t prttstctl      : 4;
                uint32_t prtpwr         : 1;
                uint32_t prtlnsts       : 2;
                uint32_t reserved_9_9   : 1;
                uint32_t prtrst         : 1;
                uint32_t prtsusp        : 1;
                uint32_t prtres         : 1;
                uint32_t prtovrcurrchng : 1;
                uint32_t prtovrcurract  : 1;
                uint32_t prtenchng      : 1;
                uint32_t prtena         : 1;
                uint32_t prtconndet     : 1;
                uint32_t prtconnsts     : 1;
        } s;
};

/**
 * cvmx_usbc#_hptxfsiz
 *
 * Host Periodic Transmit FIFO Size Register (HPTXFSIZ)
 *
 * This register holds the size and the memory start address of the Periodic
 * TxFIFO, as shown in Figures 310 and 311.
 */
union cvmx_usbcx_hptxfsiz {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hptxfsiz_s
         * @ptxfsize: Host Periodic TxFIFO Depth (PTxFSize)
         *      This value is in terms of 32-bit words.
         *      * Minimum value is 16
         *      * Maximum value is 32768
         * @ptxfstaddr: Host Periodic TxFIFO Start Address (PTxFStAddr)
         */
        struct cvmx_usbcx_hptxfsiz_s {
                uint32_t ptxfsize       : 16;
                uint32_t ptxfstaddr     : 16;
        } s;
};

/**
 * cvmx_usbc#_hptxsts
 *
 * Host Periodic Transmit FIFO/Queue Status Register (HPTXSTS)
 *
 * This read-only register contains the free space information for the Periodic
 * TxFIFO and the Periodic Transmit Request Queue
 */
union cvmx_usbcx_hptxsts {
        uint32_t u32;
        /**
         * struct cvmx_usbcx_hptxsts_s
         * @ptxqtop: Top of the Periodic Transmit Request Queue (PTxQTop)
         *      This indicates the entry in the Periodic Tx Request Queue that
         *      is currently being processes by the MAC.
         *      This register is used for debugging.
         *      * Bit [31]: Odd/Even (micro)frame
         *      - 1'b0: send in even (micro)frame
         *      - 1'b1: send in odd (micro)frame
         *      * Bits [30:27]: Channel/endpoint number
         *      * Bits [26:25]: Type
         *      - 2'b00: IN/OUT
         *      - 2'b01: Zero-length packet
         *      - 2'b10: CSPLIT
         *      - 2'b11: Disable channel command
         *      * Bit [24]: Terminate (last entry for the selected
         *      channel/endpoint)
         * @ptxqspcavail: Periodic Transmit Request Queue Space Available
         *      (PTxQSpcAvail)
         *      Indicates the number of free locations available to be written
         *      in the Periodic Transmit Request Queue. This queue holds both
         *      IN and OUT requests.
         *      * 8'h0: Periodic Transmit Request Queue is full
         *      * 8'h1: 1 location available
         *      * 8'h2: 2 locations available
         *      * n: n locations available (0..8)
         *      * Others: Reserved
         * @ptxfspcavail: Periodic Transmit Data FIFO Space Available
         *                (PTxFSpcAvail)
         *      Indicates the number of free locations available to be written
         *      to in the Periodic TxFIFO.
         *      Values are in terms of 32-bit words
         *      * 16'h0: Periodic TxFIFO is full
         *      * 16'h1: 1 word available
         *      * 16'h2: 2 words available
         *      * 16'hn: n words available (where 0..32768)
         *      * 16'h8000: 32768 words available
         *      * Others: Reserved
         */
        struct cvmx_usbcx_hptxsts_s {
                uint32_t ptxqtop        : 8;
                uint32_t ptxqspcavail   : 8;
                uint32_t ptxfspcavail   : 16;
        } s;
};

/**
 * cvmx_usbn#_clk_ctl
 *
 * USBN_CLK_CTL = USBN's Clock Control
 *
 * This register is used to control the frequency of the hclk and the
 * hreset and phy_rst signals.
 */
union cvmx_usbnx_clk_ctl {
        uint64_t u64;
        /**
         * struct cvmx_usbnx_clk_ctl_s
         * @divide2: The 'hclk' used by the USB subsystem is derived
         *      from the eclk.
         *      Also see the field DIVIDE. DIVIDE2<1> must currently
         *      be zero because it is not implemented, so the maximum
         *      ratio of eclk/hclk is currently 16.
         *      The actual divide number for hclk is:
         *      (DIVIDE2 + 1) * (DIVIDE + 1)
         * @hclk_rst: When this field is '0' the HCLK-DIVIDER used to
         *      generate the hclk in the USB Subsystem is held
         *      in reset. This bit must be set to '0' before
         *      changing the value os DIVIDE in this register.
         *      The reset to the HCLK_DIVIDERis also asserted
         *      when core reset is asserted.
         * @p_x_on: Force USB-PHY on during suspend.
         *      '1' USB-PHY XO block is powered-down during
         *      suspend.
         *      '0' USB-PHY XO block is powered-up during
         *      suspend.
         *      The value of this field must be set while POR is
         *      active.
         * @p_rtype: PHY reference clock type
         *      On CN50XX/CN52XX/CN56XX the values are:
         *              '0' The USB-PHY uses a 12MHz crystal as a clock source
         *                  at the USB_XO and USB_XI pins.
         *              '1' Reserved.
         *              '2' The USB_PHY uses 12/24/48MHz 2.5V board clock at the
         *                  USB_XO pin. USB_XI should be tied to ground in this
         *                  case.
         *              '3' Reserved.
         *      On CN3xxx bits 14 and 15 are p_xenbn and p_rclk and values are:
         *              '0' Reserved.
         *              '1' Reserved.
         *              '2' The PHY PLL uses the XO block output as a reference.
         *                  The XO block uses an external clock supplied on the
         *                  XO pin. USB_XI should be tied to ground for this
         *                  usage.
         *              '3' The XO block uses the clock from a crystal.
         * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
         *      remain powered in Suspend Mode.
         *      '1' The USB-PHY XO Bias, Bandgap and PLL are
         *      powered down in suspend mode.
         *      The value of this field must be set while POR is
         *      active.
         * @p_c_sel: Phy clock speed select.
         *      Selects the reference clock / crystal frequency.
         *      '11': Reserved
         *      '10': 48 MHz (reserved when a crystal is used)
         *      '01': 24 MHz (reserved when a crystal is used)
         *      '00': 12 MHz
         *      The value of this field must be set while POR is
         *      active.
         *      NOTE: if a crystal is used as a reference clock,
         *      this field must be set to 12 MHz.
         * @cdiv_byp: Used to enable the bypass input to the USB_CLK_DIV.
         * @sd_mode: Scaledown mode for the USBC. Control timing events
         *      in the USBC, for normal operation this must be '0'.
         * @s_bist: Starts bist on the hclk memories, during the '0'
         *      to '1' transition.
         * @por: Power On Reset for the PHY.
         *      Resets all the PHYS registers and state machines.
         * @enable: When '1' allows the generation of the hclk. When
         *      '0' the hclk will not be generated. SEE DIVIDE
         *      field of this register.
         * @prst: When this field is '0' the reset associated with
         *      the phy_clk functionality in the USB Subsystem is
         *      help in reset. This bit should not be set to '1'
         *      until the time it takes 6 clocks (hclk or phy_clk,
         *      whichever is slower) has passed. Under normal
         *      operation once this bit is set to '1' it should not
         *      be set to '0'.
         * @hrst: When this field is '0' the reset associated with
         *      the hclk functioanlity in the USB Subsystem is
         *      held in reset.This bit should not be set to '1'
         *      until 12ms after phy_clk is stable. Under normal
         *      operation, once this bit is set to '1' it should
         *      not be set to '0'.
         * @divide: The frequency of 'hclk' used by the USB subsystem
         *      is the eclk frequency divided by the value of
         *      (DIVIDE2 + 1) * (DIVIDE + 1), also see the field
         *      DIVIDE2 of this register.
         *      The hclk frequency should be less than 125Mhz.
         *      After writing a value to this field the SW should
         *      read the field for the value written.
         *      The ENABLE field of this register should not be set
         *      until AFTER this field is set and then read.
         */
        struct cvmx_usbnx_clk_ctl_s {
                uint64_t reserved_20_63 : 44;
                uint64_t divide2        : 2;
                uint64_t hclk_rst       : 1;
                uint64_t p_x_on         : 1;
                uint64_t p_rtype        : 2;
                uint64_t p_com_on       : 1;
                uint64_t p_c_sel        : 2;
                uint64_t cdiv_byp       : 1;
                uint64_t sd_mode        : 2;
                uint64_t s_bist         : 1;
                uint64_t por            : 1;
                uint64_t enable         : 1;
                uint64_t prst           : 1;
                uint64_t hrst           : 1;
                uint64_t divide         : 3;
        } s;
};

/**
 * cvmx_usbn#_usbp_ctl_status
 *
 * USBN_USBP_CTL_STATUS = USBP Control And Status Register
 *
 * Contains general control and status information for the USBN block.
 */
union cvmx_usbnx_usbp_ctl_status {
        uint64_t u64;
        /**
         * struct cvmx_usbnx_usbp_ctl_status_s
         * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
         * @txvreftune: HS DC Voltage Level Adjustment
         * @txfslstune: FS/LS Source Impedence Adjustment
         * @txhsxvtune: Transmitter High-Speed Crossover Adjustment
         * @sqrxtune: Squelch Threshold Adjustment
         * @compdistune: Disconnect Threshold Adjustment
         * @otgtune: VBUS Valid Threshold Adjustment
         * @otgdisable: OTG Block Disable
         * @portreset: Per_Port Reset
         * @drvvbus: Drive VBUS
         * @lsbist: Low-Speed BIST Enable.
         * @fsbist: Full-Speed BIST Enable.
         * @hsbist: High-Speed BIST Enable.
         * @bist_done: PHY Bist Done.
         *      Asserted at the end of the PHY BIST sequence.
         * @bist_err: PHY Bist Error.
         *      Indicates an internal error was detected during
         *      the BIST sequence.
         * @tdata_out: PHY Test Data Out.
         *      Presents either internaly generated signals or
         *      test register contents, based upon the value of
         *      test_data_out_sel.
         * @siddq: Drives the USBP (USB-PHY) SIDDQ input.
         *      Normally should be set to zero.
         *      When customers have no intent to use USB PHY
         *      interface, they should:
         *      - still provide 3.3V to USB_VDD33, and
         *      - tie USB_REXT to 3.3V supply, and
         *      - set USBN*_USBP_CTL_STATUS[SIDDQ]=1
         * @txpreemphasistune: HS Transmitter Pre-Emphasis Enable
         * @dma_bmode: When set to 1 the L2C DMA address will be updated
         *      with byte-counts between packets. When set to 0
         *      the L2C DMA address is incremented to the next
         *      4-byte aligned address after adding byte-count.
         * @usbc_end: Bigendian input to the USB Core. This should be
         *      set to '0' for operation.
         * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
         * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
         * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
         *      This signal enables the pull-down resistance on
         *      the D+ line. '1' pull down-resistance is connected
         *      to D+/ '0' pull down resistance is not connected
         *      to D+. When an A/B device is acting as a host
         *      (downstream-facing port), dp_pulldown and
         *      dm_pulldown are enabled. This must not toggle
         *      during normal opeartion.
         * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
         *      This signal enables the pull-down resistance on
         *      the D- line. '1' pull down-resistance is connected
         *      to D-. '0' pull down resistance is not connected
         *      to D-. When an A/B device is acting as a host
         *      (downstream-facing port), dp_pulldown and
         *      dm_pulldown are enabled. This must not toggle
         *      during normal opeartion.
         * @hst_mode: When '0' the USB is acting as HOST, when '1'
         *      USB is acting as device. This field needs to be
         *      set while the USB is in reset.
         * @tuning: Transmitter Tuning for High-Speed Operation.
         *      Tunes the current supply and rise/fall output
         *      times for high-speed operation.
         *      [20:19] == 11: Current supply increased
         *      approximately 9%
         *      [20:19] == 10: Current supply increased
         *      approximately 4.5%
         *      [20:19] == 01: Design default.
         *      [20:19] == 00: Current supply decreased
         *      approximately 4.5%
         *      [22:21] == 11: Rise and fall times are increased.
         *      [22:21] == 10: Design default.
         *      [22:21] == 01: Rise and fall times are decreased.
         *      [22:21] == 00: Rise and fall times are decreased
         *      further as compared to the 01 setting.
         * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
         *      Enables or disables bit stuffing on data[15:8]
         *      when bit-stuffing is enabled.
         * @tx_bs_en: Transmit Bit Stuffing on [7:0].
         *      Enables or disables bit stuffing on data[7:0]
         *      when bit-stuffing is enabled.
         * @loop_enb: PHY Loopback Test Enable.
         *      '1': During data transmission the receive is
         *      enabled.
         *      '0': During data transmission the receive is
         *      disabled.
         *      Must be '0' for normal operation.
         * @vtest_enb: Analog Test Pin Enable.
         *      '1' The PHY's analog_test pin is enabled for the
         *      input and output of applicable analog test signals.
         *      '0' THe analog_test pin is disabled.
         * @bist_enb: Built-In Self Test Enable.
         *      Used to activate BIST in the PHY.
         * @tdata_sel: Test Data Out Select.
         *      '1' test_data_out[3:0] (PHY) register contents
         *      are output. '0' internaly generated signals are
         *      output.
         * @taddr_in: Mode Address for Test Interface.
         *      Specifies the register address for writing to or
         *      reading from the PHY test interface register.
         * @tdata_in: Internal Testing Register Input Data and Select
         *      This is a test bus. Data is present on [3:0],
         *      and its corresponding select (enable) is present
         *      on bits [7:4].
         * @ate_reset: Reset input from automatic test equipment.
         *      This is a test signal. When the USB Core is
         *      powered up (not in Susned Mode), an automatic
         *      tester can use this to disable phy_clock and
         *      free_clk, then re-eanable them with an aligned
         *      phase.
         *      '1': The phy_clk and free_clk outputs are
         *      disabled. "0": The phy_clock and free_clk outputs
         *      are available within a specific period after the
         *      de-assertion.
         */
        struct cvmx_usbnx_usbp_ctl_status_s {
                uint64_t txrisetune             : 1;
                uint64_t txvreftune             : 4;
                uint64_t txfslstune             : 4;
                uint64_t txhsxvtune             : 2;
                uint64_t sqrxtune               : 3;
                uint64_t compdistune            : 3;
                uint64_t otgtune                : 3;
                uint64_t otgdisable             : 1;
                uint64_t portreset              : 1;
                uint64_t drvvbus                : 1;
                uint64_t lsbist                 : 1;
                uint64_t fsbist                 : 1;
                uint64_t hsbist                 : 1;
                uint64_t bist_done              : 1;
                uint64_t bist_err               : 1;
                uint64_t tdata_out              : 4;
                uint64_t siddq                  : 1;
                uint64_t txpreemphasistune      : 1;
                uint64_t dma_bmode              : 1;
                uint64_t usbc_end               : 1;
                uint64_t usbp_bist              : 1;
                uint64_t tclk                   : 1;
                uint64_t dp_pulld               : 1;
                uint64_t dm_pulld               : 1;
                uint64_t hst_mode               : 1;
                uint64_t tuning                 : 4;
                uint64_t tx_bs_enh              : 1;
                uint64_t tx_bs_en               : 1;
                uint64_t loop_enb               : 1;
                uint64_t vtest_enb              : 1;
                uint64_t bist_enb               : 1;
                uint64_t tdata_sel              : 1;
                uint64_t taddr_in               : 4;
                uint64_t tdata_in               : 8;
                uint64_t ate_reset              : 1;
        } s;
};

#endif /* __OCTEON_HCD_H__ */