diff mbox series

[v4,6/7] usb: Add DWC3 model

Message ID 1598642380-27817-7-git-send-email-sai.pavan.boddu@xilinx.com (mailing list archive)
State New, archived
Headers show
Series Make hcd-xhci independent of pci hooks | expand

Commit Message

Sai Pavan Boddu Aug. 28, 2020, 7:19 p.m. UTC
From: Vikram Garhwal <fnu.vikram@xilinx.com>

This patch adds skeleton model of dwc3 usb controller attached to
xhci-sysbus device.

Signed-off-by: Vikram Garhwal <fnu.vikram@xilinx.com>
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
---
 hw/usb/Makefile.objs      |   1 +
 hw/usb/hcd-dwc3.c         | 606 ++++++++++++++++++++++++++++++++++++++++++++++
 include/hw/usb/hcd-dwc3.h |  58 +++++
 3 files changed, 665 insertions(+)
 create mode 100644 hw/usb/hcd-dwc3.c
 create mode 100644 include/hw/usb/hcd-dwc3.h

Comments

Gerd Hoffmann Aug. 31, 2020, 7:05 a.m. UTC | #1
On Sat, Aug 29, 2020 at 12:49:39AM +0530, Sai Pavan Boddu wrote:
> From: Vikram Garhwal <fnu.vikram@xilinx.com>
> 
> This patch adds skeleton model of dwc3 usb controller attached to
> xhci-sysbus device.

--verbose.

This looks like xhci with a bunch of extra registers?
What these registers are good for?

> +/*
> + * QEMU model of the USB DWC3 host controller emulation.

(answer should go to both this comment and the commit message).

thanks,
  Gerd
Sai Pavan Boddu Sept. 1, 2020, 10:58 a.m. UTC | #2
HI Gred,

> -----Original Message-----
> From: Gerd Hoffmann <kraxel@redhat.com>
> Sent: Monday, August 31, 2020 12:36 PM
> To: Sai Pavan Boddu <saipava@xilinx.com>
> Cc: Peter Maydell <peter.maydell@linaro.org>; Markus Armbruster
> <armbru@redhat.com>; 'Marc-André Lureau'
> <marcandre.lureau@redhat.com>; Paolo Bonzini <pbonzini@redhat.com>;
> Edgar Iglesias <edgari@xilinx.com>; Francisco Eduardo Iglesias
> <figlesia@xilinx.com>; qemu-devel@nongnu.org; Alistair Francis
> <alistair.francis@wdc.com>; Eduardo Habkost <ehabkost@redhat.com>;
> Ying Fang <fangying1@huawei.com>; 'Philippe Mathieu-Daudé'
> <philmd@redhat.com>; Vikram Garhwal <fnuv@xilinx.com>; Paul
> Zimmerman <pauldzim@gmail.com>
> Subject: Re: [PATCH v4 6/7] usb: Add DWC3 model
> 
> On Sat, Aug 29, 2020 at 12:49:39AM +0530, Sai Pavan Boddu wrote:
> > From: Vikram Garhwal <fnu.vikram@xilinx.com>
> >
> > This patch adds skeleton model of dwc3 usb controller attached to
> > xhci-sysbus device.
> 
> --verbose.
> 
> This looks like xhci with a bunch of extra registers?
[Sai Pavan Boddu] 
> What these registers are good for?
These are also put to make the guest happy.
This module contain dwc3 global registers which deal with power management, phy config and ID registers.
And also has Device and OTG registers which are incomplete at present.

What I realized is, we could clean many of these registers and only emulate ID registers at present. As others are meaningless. I would just define a reserved space, to skip io access errors.

Thanks,
Sai Pavan
> 
> > +/*
> > + * QEMU model of the USB DWC3 host controller emulation.
> 
> (answer should go to both this comment and the commit message).
> 
> thanks,
>   Gerd
diff mbox series

Patch

diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs
index f16a3c3..af0487b 100644
--- a/hw/usb/Makefile.objs
+++ b/hw/usb/Makefile.objs
@@ -15,6 +15,7 @@  common-obj-$(CONFIG_USB_XHCI_PCI) += hcd-xhci-pci.o
 common-obj-$(CONFIG_USB_XHCI_SYSBUS) += hcd-xhci-sysbus.o
 common-obj-$(CONFIG_USB_MUSB) += hcd-musb.o
 common-obj-$(CONFIG_USB_DWC2) += hcd-dwc2.o
+common-obj-$(CONFIG_XLNX_VERSAL) += hcd-dwc3.o
 
 common-obj-$(CONFIG_TUSB6010) += tusb6010.o
 common-obj-$(CONFIG_IMX)      += chipidea.o
diff --git a/hw/usb/hcd-dwc3.c b/hw/usb/hcd-dwc3.c
new file mode 100644
index 0000000..1c2a927
--- /dev/null
+++ b/hw/usb/hcd-dwc3.c
@@ -0,0 +1,606 @@ 
+/*
+ * QEMU model of the USB DWC3 host controller emulation.
+ *
+ * Copyright (c) 2020 Xilinx Inc.
+ *
+ * Written by Vikram Garhwal<fnu.vikram@xilinx.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sysbus.h"
+#include "hw/register.h"
+#include "qemu/bitops.h"
+#include "qemu/log.h"
+#include "qom/object.h"
+#include "migration/vmstate.h"
+#include "hw/qdev-properties.h"
+#include "hw/usb/hcd-dwc3.h"
+#include "qapi/error.h"
+
+#ifndef USB_DWC3_ERR_DEBUG
+#define USB_DWC3_ERR_DEBUG 0
+#endif
+
+#define HOST_MODE           1
+#define FIFO_LEN         0x1000
+
+REG32(GSBUSCFG0, 0x00)
+    FIELD(GSBUSCFG0, DATRDREQINFO, 28, 4)
+    FIELD(GSBUSCFG0, DESRDREQINFO, 24, 4)
+    FIELD(GSBUSCFG0, DATWRREQINFO, 20, 4)
+    FIELD(GSBUSCFG0, DESWRREQINFO, 16, 4)
+    FIELD(GSBUSCFG0, RESERVED_15_12, 12, 4)
+    FIELD(GSBUSCFG0, DATBIGEND, 11, 1)
+    FIELD(GSBUSCFG0, DESBIGEND, 10, 1)
+    FIELD(GSBUSCFG0, RESERVED_9_8, 8, 2)
+    FIELD(GSBUSCFG0, INCR256BRSTENA, 7, 1)
+    FIELD(GSBUSCFG0, INCR128BRSTENA, 6, 1)
+    FIELD(GSBUSCFG0, INCR64BRSTENA, 5, 1)
+    FIELD(GSBUSCFG0, INCR32BRSTENA, 4, 1)
+    FIELD(GSBUSCFG0, INCR16BRSTENA, 3, 1)
+    FIELD(GSBUSCFG0, INCR8BRSTENA, 2, 1)
+    FIELD(GSBUSCFG0, INCR4BRSTENA, 1, 1)
+    FIELD(GSBUSCFG0, INCRBRSTENA, 0, 1)
+REG32(GSBUSCFG1, 0x04)
+    FIELD(GSBUSCFG1, RESERVED_31_13, 13, 19)
+    FIELD(GSBUSCFG1, EN1KPAGE, 12, 1)
+    FIELD(GSBUSCFG1, PIPETRANSLIMIT, 8, 4)
+    FIELD(GSBUSCFG1, RESERVED_7_0, 0, 8)
+REG32(GTXTHRCFG, 0x08)
+    FIELD(GTXTHRCFG, RESERVED_31, 31, 1)
+    FIELD(GTXTHRCFG, RESERVED_30, 30, 1)
+    FIELD(GTXTHRCFG, USBTXPKTCNTSEL, 29, 1)
+    FIELD(GTXTHRCFG, RESERVED_28, 28, 1)
+    FIELD(GTXTHRCFG, USBTXPKTCNT, 24, 4)
+    FIELD(GTXTHRCFG, USBMAXTXBURSTSIZE, 16, 8)
+    FIELD(GTXTHRCFG, RESERVED_15, 15, 1)
+    FIELD(GTXTHRCFG, RESERVED_14, 14, 1)
+    FIELD(GTXTHRCFG, RESERVED_13_11, 11, 3)
+    FIELD(GTXTHRCFG, RESERVED_10_0, 0, 11)
+REG32(GRXTHRCFG, 0x0c)
+    FIELD(GRXTHRCFG, RESERVED_31_30, 30, 2)
+    FIELD(GRXTHRCFG, USBRXPKTCNTSEL, 29, 1)
+    FIELD(GRXTHRCFG, RESERVED_28, 28, 1)
+    FIELD(GRXTHRCFG, USBRXPKTCNT, 24, 4)
+    FIELD(GRXTHRCFG, USBMAXRXBURSTSIZE, 19, 5)
+    FIELD(GRXTHRCFG, RESERVED_18_16, 16, 3)
+    FIELD(GRXTHRCFG, RESERVED_15, 15, 1)
+    FIELD(GRXTHRCFG, RESERVED_14_13, 13, 2)
+    FIELD(GRXTHRCFG, RESVISOCOUTSPC, 0, 13)
+REG32(GCTL, 0x10)
+    FIELD(GCTL, PWRDNSCALE, 19, 13)
+    FIELD(GCTL, MASTERFILTBYPASS, 18, 1)
+    FIELD(GCTL, BYPSSETADDR, 17, 1)
+    FIELD(GCTL, U2RSTECN, 16, 1)
+    FIELD(GCTL, FRMSCLDWN, 14, 2)
+    FIELD(GCTL, PRTCAPDIR, 12, 2)
+    FIELD(GCTL, CORESOFTRESET, 11, 1)
+    FIELD(GCTL, U1U2TIMERSCALE, 9, 1)
+    FIELD(GCTL, DEBUGATTACH, 8, 1)
+    FIELD(GCTL, RAMCLKSEL, 6, 2)
+    FIELD(GCTL, SCALEDOWN, 4, 2)
+    FIELD(GCTL, DISSCRAMBLE, 3, 1)
+    FIELD(GCTL, U2EXIT_LFPS, 2, 1)
+    FIELD(GCTL, GBLHIBERNATIONEN, 1, 1)
+    FIELD(GCTL, DSBLCLKGTNG, 0, 1)
+REG32(GPMSTS, 0x14)
+REG32(GSTS, 0x18)
+    FIELD(GSTS, CBELT, 20, 12)
+    FIELD(GSTS, RESERVED_19_12, 12, 8)
+    FIELD(GSTS, SSIC_IP, 11, 1)
+    FIELD(GSTS, OTG_IP, 10, 1)
+    FIELD(GSTS, BC_IP, 9, 1)
+    FIELD(GSTS, ADP_IP, 8, 1)
+    FIELD(GSTS, HOST_IP, 7, 1)
+    FIELD(GSTS, DEVICE_IP, 6, 1)
+    FIELD(GSTS, CSRTIMEOUT, 5, 1)
+    FIELD(GSTS, BUSERRADDRVLD, 4, 1)
+    FIELD(GSTS, RESERVED_3_2, 2, 2)
+    FIELD(GSTS, CURMOD, 0, 2)
+REG32(GUCTL1, 0x1c)
+    FIELD(GUCTL1, RESUME_OPMODE_HS_HOST, 10, 1)
+REG32(GSNPSID, 0x20)
+REG32(GGPIO, 0x24)
+    FIELD(GGPIO, GPO, 16, 16)
+    FIELD(GGPIO, GPI, 0, 16)
+REG32(GUID, 0x28)
+REG32(GUCTL, 0x2c)
+    FIELD(GUCTL, REFCLKPER, 22, 10)
+    FIELD(GUCTL, NOEXTRDL, 21, 1)
+    FIELD(GUCTL, RESERVED_20_18, 18, 3)
+    FIELD(GUCTL, SPRSCTRLTRANSEN, 17, 1)
+    FIELD(GUCTL, RESBWHSEPS, 16, 1)
+    FIELD(GUCTL, RESERVED_15, 15, 1)
+    FIELD(GUCTL, USBHSTINAUTORETRYEN, 14, 1)
+    FIELD(GUCTL, ENOVERLAPCHK, 13, 1)
+    FIELD(GUCTL, EXTCAPSUPPTEN, 12, 1)
+    FIELD(GUCTL, INSRTEXTRFSBODI, 11, 1)
+    FIELD(GUCTL, DTCT, 9, 2)
+    FIELD(GUCTL, DTFT, 0, 9)
+REG32(GBUSERRADDRLO, 0x30)
+REG32(GBUSERRADDRHI, 0x34)
+REG32(GHWPARAMS0, 0x40)
+    FIELD(GHWPARAMS0, GHWPARAMS0_31_24, 24, 8)
+    FIELD(GHWPARAMS0, GHWPARAMS0_23_16, 16, 8)
+    FIELD(GHWPARAMS0, GHWPARAMS0_15_8, 8, 8)
+    FIELD(GHWPARAMS0, GHWPARAMS0_7_6, 6, 2)
+    FIELD(GHWPARAMS0, GHWPARAMS0_5_3, 3, 3)
+    FIELD(GHWPARAMS0, GHWPARAMS0_2_0, 0, 3)
+REG32(GHWPARAMS1, 0x44)
+    FIELD(GHWPARAMS1, GHWPARAMS1_31, 31, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_30, 30, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_29, 29, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_28, 28, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_27, 27, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_26, 26, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_25_24, 24, 2)
+    FIELD(GHWPARAMS1, GHWPARAMS1_23, 23, 1)
+    FIELD(GHWPARAMS1, GHWPARAMS1_22_21, 21, 2)
+    FIELD(GHWPARAMS1, GHWPARAMS1_20_15, 15, 6)
+    FIELD(GHWPARAMS1, GHWPARAMS1_14_12, 12, 3)
+    FIELD(GHWPARAMS1, GHWPARAMS1_11_9, 9, 3)
+    FIELD(GHWPARAMS1, GHWPARAMS1_8_6, 6, 3)
+    FIELD(GHWPARAMS1, GHWPARAMS1_5_3, 3, 3)
+    FIELD(GHWPARAMS1, GHWPARAMS1_2_0, 0, 3)
+REG32(GHWPARAMS2, 0x48)
+REG32(GHWPARAMS3, 0x4c)
+    FIELD(GHWPARAMS3, GHWPARAMS3_31, 31, 1)
+    FIELD(GHWPARAMS3, GHWPARAMS3_30_23, 23, 8)
+    FIELD(GHWPARAMS3, GHWPARAMS3_22_18, 18, 5)
+    FIELD(GHWPARAMS3, GHWPARAMS3_17_12, 12, 6)
+    FIELD(GHWPARAMS3, GHWPARAMS3_11, 11, 1)
+    FIELD(GHWPARAMS3, GHWPARAMS3_10, 10, 1)
+    FIELD(GHWPARAMS3, GHWPARAMS3_9_8, 8, 2)
+    FIELD(GHWPARAMS3, GHWPARAMS3_7_6, 6, 2)
+    FIELD(GHWPARAMS3, GHWPARAMS3_5_4, 4, 2)
+    FIELD(GHWPARAMS3, GHWPARAMS3_3_2, 2, 2)
+    FIELD(GHWPARAMS3, GHWPARAMS3_1_0, 0, 2)
+REG32(GHWPARAMS4, 0x50)
+    FIELD(GHWPARAMS4, GHWPARAMS4_31_28, 28, 4)
+    FIELD(GHWPARAMS4, GHWPARAMS4_27_24, 24, 4)
+    FIELD(GHWPARAMS4, GHWPARAMS4_23, 23, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_22, 22, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_21, 21, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_20_17, 17, 4)
+    FIELD(GHWPARAMS4, GHWPARAMS4_16_13, 13, 4)
+    FIELD(GHWPARAMS4, GHWPARAMS4_12, 12, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_11, 11, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_10_9, 9, 2)
+    FIELD(GHWPARAMS4, GHWPARAMS4_8_7, 7, 2)
+    FIELD(GHWPARAMS4, GHWPARAMS4_6, 6, 1)
+    FIELD(GHWPARAMS4, GHWPARAMS4_5_0, 0, 6)
+REG32(GHWPARAMS5, 0x54)
+    FIELD(GHWPARAMS5, GHWPARAMS5_31_28, 28, 4)
+    FIELD(GHWPARAMS5, GHWPARAMS5_27_22, 22, 6)
+    FIELD(GHWPARAMS5, GHWPARAMS5_21_16, 16, 6)
+    FIELD(GHWPARAMS5, GHWPARAMS5_15_10, 10, 6)
+    FIELD(GHWPARAMS5, GHWPARAMS5_9_4, 4, 6)
+    FIELD(GHWPARAMS5, GHWPARAMS5_3_0, 0, 4)
+REG32(GHWPARAMS6, 0x58)
+    FIELD(GHWPARAMS6, GHWPARAMS6_31_16, 16, 16)
+    FIELD(GHWPARAMS6, BUSFLTRSSUPPORT, 15, 1)
+    FIELD(GHWPARAMS6, BCSUPPORT, 14, 1)
+    FIELD(GHWPARAMS6, OTG_SS_SUPPORT, 13, 1)
+    FIELD(GHWPARAMS6, ADPSUPPORT, 12, 1)
+    FIELD(GHWPARAMS6, HNPSUPPORT, 11, 1)
+    FIELD(GHWPARAMS6, SRPSUPPORT, 10, 1)
+    FIELD(GHWPARAMS6, GHWPARAMS6_9_8, 8, 2)
+    FIELD(GHWPARAMS6, GHWPARAMS6_7, 7, 1)
+    FIELD(GHWPARAMS6, GHWPARAMS6_6, 6, 1)
+    FIELD(GHWPARAMS6, GHWPARAMS6_5_0, 0, 6)
+REG32(GHWPARAMS7, 0x5c)
+    FIELD(GHWPARAMS7, GHWPARAMS7_31_16, 16, 16)
+    FIELD(GHWPARAMS7, GHWPARAMS7_15_0, 0, 16)
+REG32(GDBGFIFOSPACE, 0x60)
+    FIELD(GDBGFIFOSPACE, SPACE_AVAILABLE, 16, 16)
+    FIELD(GDBGFIFOSPACE, RESERVED_15_9, 9, 7)
+    FIELD(GDBGFIFOSPACE, FIFO_QUEUE_SELECT, 0, 9)
+REG32(GUCTL2, 0x9c)
+    FIELD(GUCTL2, RESERVED_31_26, 26, 6)
+    FIELD(GUCTL2, EN_HP_PM_TIMER, 19, 7)
+    FIELD(GUCTL2, NOLOWPWRDUR, 15, 4)
+    FIELD(GUCTL2, RST_ACTBITLATER, 14, 1)
+    FIELD(GUCTL2, RESERVED_13, 13, 1)
+    FIELD(GUCTL2, DISABLECFC, 11, 1)
+REG32(GUSB2PHYCFG, 0x100)
+    FIELD(GUSB2PHYCFG, U2_FREECLK_EXISTS, 30, 1)
+    FIELD(GUSB2PHYCFG, ULPI_LPM_WITH_OPMODE_CHK, 29, 1)
+    FIELD(GUSB2PHYCFG, RESERVED_25, 25, 1)
+    FIELD(GUSB2PHYCFG, LSTRD, 22, 3)
+    FIELD(GUSB2PHYCFG, LSIPD, 19, 3)
+    FIELD(GUSB2PHYCFG, ULPIEXTVBUSINDIACTOR, 18, 1)
+    FIELD(GUSB2PHYCFG, ULPIEXTVBUSDRV, 17, 1)
+    FIELD(GUSB2PHYCFG, RESERVED_16, 16, 1)
+    FIELD(GUSB2PHYCFG, ULPIAUTORES, 15, 1)
+    FIELD(GUSB2PHYCFG, RESERVED_14, 14, 1)
+    FIELD(GUSB2PHYCFG, USBTRDTIM, 10, 4)
+    FIELD(GUSB2PHYCFG, XCVRDLY, 9, 1)
+    FIELD(GUSB2PHYCFG, ENBLSLPM, 8, 1)
+    FIELD(GUSB2PHYCFG, PHYSEL, 7, 1)
+    FIELD(GUSB2PHYCFG, SUSPENDUSB20, 6, 1)
+    FIELD(GUSB2PHYCFG, FSINTF, 5, 1)
+    FIELD(GUSB2PHYCFG, ULPI_UTMI_SEL, 4, 1)
+    FIELD(GUSB2PHYCFG, PHYIF, 3, 1)
+    FIELD(GUSB2PHYCFG, TOUTCAL, 0, 3)
+REG32(GUSB2I2CCTL, 0x140)
+REG32(GUSB2PHYACC_ULPI, 0x180)
+    FIELD(GUSB2PHYACC_ULPI, RESERVED_31_27, 27, 5)
+    FIELD(GUSB2PHYACC_ULPI, DISUIPIDRVR, 26, 1)
+    FIELD(GUSB2PHYACC_ULPI, NEWREGREQ, 25, 1)
+    FIELD(GUSB2PHYACC_ULPI, VSTSDONE, 24, 1)
+    FIELD(GUSB2PHYACC_ULPI, VSTSBSY, 23, 1)
+    FIELD(GUSB2PHYACC_ULPI, REGWR, 22, 1)
+    FIELD(GUSB2PHYACC_ULPI, REGADDR, 16, 6)
+    FIELD(GUSB2PHYACC_ULPI, EXTREGADDR, 8, 8)
+    FIELD(GUSB2PHYACC_ULPI, REGDATA, 0, 8)
+REG32(GTXFIFOSIZ0, 0x200)
+    FIELD(GTXFIFOSIZ0, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ0, TXFDEP_N, 0, 16)
+REG32(GTXFIFOSIZ1, 0x204)
+    FIELD(GTXFIFOSIZ1, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ1, TXFDEP_N, 0, 16)
+REG32(GTXFIFOSIZ2, 0x208)
+    FIELD(GTXFIFOSIZ2, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ2, TXFDEP_N, 0, 16)
+REG32(GTXFIFOSIZ3, 0x20c)
+    FIELD(GTXFIFOSIZ3, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ3, TXFDEP_N, 0, 16)
+REG32(GTXFIFOSIZ4, 0x210)
+    FIELD(GTXFIFOSIZ4, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ4, TXFDEP_N, 0, 16)
+REG32(GTXFIFOSIZ5, 0x214)
+    FIELD(GTXFIFOSIZ5, TXFSTADDR_N, 16, 16)
+    FIELD(GTXFIFOSIZ5, TXFDEP_N, 0, 16)
+REG32(GRXFIFOSIZ0, 0x280)
+    FIELD(GRXFIFOSIZ0, RXFSTADDR_N, 16, 16)
+    FIELD(GRXFIFOSIZ0, RXFDEP_N, 0, 16)
+REG32(GRXFIFOSIZ1, 0x284)
+    FIELD(GRXFIFOSIZ1, RXFSTADDR_N, 16, 16)
+    FIELD(GRXFIFOSIZ1, RXFDEP_N, 0, 16)
+REG32(GRXFIFOSIZ2, 0x288)
+    FIELD(GRXFIFOSIZ2, RXFSTADDR_N, 16, 16)
+    FIELD(GRXFIFOSIZ2, RXFDEP_N, 0, 16)
+REG32(GEVNTADRLO_0, 0x300)
+REG32(GEVNTADRHI_0, 0x304)
+REG32(GEVNTSIZ_0, 0x308)
+    FIELD(GEVNTSIZ_0, EVNTINTRPTMASK, 31, 1)
+    FIELD(GEVNTSIZ_0, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTSIZ_0, EVENTSIZ, 0, 16)
+REG32(GEVNTCOUNT_0, 0x30c)
+    FIELD(GEVNTCOUNT_0, EVNT_HANDLER_BUSY, 31, 1)
+    FIELD(GEVNTCOUNT_0, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTCOUNT_0, EVNTCOUNT, 0, 16)
+REG32(GEVNTADRLO_1, 0x310)
+REG32(GEVNTADRHI_1, 0x314)
+REG32(GEVNTSIZ_1, 0x318)
+    FIELD(GEVNTSIZ_1, EVNTINTRPTMASK, 31, 1)
+    FIELD(GEVNTSIZ_1, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTSIZ_1, EVENTSIZ, 0, 16)
+REG32(GEVNTCOUNT_1, 0x31c)
+    FIELD(GEVNTCOUNT_1, EVNT_HANDLER_BUSY, 31, 1)
+    FIELD(GEVNTCOUNT_1, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTCOUNT_1, EVNTCOUNT, 0, 16)
+REG32(GEVNTADRLO_2, 0x320)
+REG32(GEVNTADRHI_2, 0x324)
+REG32(GEVNTSIZ_2, 0x328)
+    FIELD(GEVNTSIZ_2, EVNTINTRPTMASK, 31, 1)
+    FIELD(GEVNTSIZ_2, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTSIZ_2, EVENTSIZ, 0, 16)
+REG32(GEVNTCOUNT_2, 0x32c)
+    FIELD(GEVNTCOUNT_2, EVNT_HANDLER_BUSY, 31, 1)
+    FIELD(GEVNTCOUNT_2, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTCOUNT_2, EVNTCOUNT, 0, 16)
+REG32(GEVNTADRLO_3, 0x330)
+REG32(GEVNTADRHI_3, 0x334)
+REG32(GEVNTSIZ_3, 0x338)
+    FIELD(GEVNTSIZ_3, EVNTINTRPTMASK, 31, 1)
+    FIELD(GEVNTSIZ_3, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTSIZ_3, EVENTSIZ, 0, 16)
+REG32(GEVNTCOUNT_3, 0x33c)
+    FIELD(GEVNTCOUNT_3, EVNT_HANDLER_BUSY, 31, 1)
+    FIELD(GEVNTCOUNT_3, RESERVED_30_16, 16, 15)
+    FIELD(GEVNTCOUNT_3, EVNTCOUNT, 0, 16)
+REG32(GHWPARAMS8, 0x500)
+REG32(GTXFIFOPRIDEV, 0x510)
+    FIELD(GTXFIFOPRIDEV, RESERVED_31_N, 6, 26)
+    FIELD(GTXFIFOPRIDEV, GTXFIFOPRIDEV, 0, 6)
+REG32(GTXFIFOPRIHST, 0x518)
+    FIELD(GTXFIFOPRIHST, RESERVED_31_16, 3, 29)
+    FIELD(GTXFIFOPRIHST, GTXFIFOPRIHST, 0, 3)
+REG32(GRXFIFOPRIHST, 0x51c)
+    FIELD(GRXFIFOPRIHST, RESERVED_31_16, 3, 29)
+    FIELD(GRXFIFOPRIHST, GRXFIFOPRIHST, 0, 3)
+REG32(GDMAHLRATIO, 0x524)
+    FIELD(GDMAHLRATIO, RESERVED_31_13, 13, 19)
+    FIELD(GDMAHLRATIO, HSTRXFIFO, 8, 5)
+    FIELD(GDMAHLRATIO, RESERVED_7_5, 5, 3)
+    FIELD(GDMAHLRATIO, HSTTXFIFO, 0, 5)
+REG32(GFLADJ, 0x530)
+    FIELD(GFLADJ, GFLADJ_REFCLK_240MHZDECR_PLS1, 31, 1)
+    FIELD(GFLADJ, GFLADJ_REFCLK_240MHZ_DECR, 24, 7)
+    FIELD(GFLADJ, GFLADJ_REFCLK_LPM_SEL, 23, 1)
+    FIELD(GFLADJ, RESERVED_22, 22, 1)
+    FIELD(GFLADJ, GFLADJ_REFCLK_FLADJ, 8, 14)
+    FIELD(GFLADJ, GFLADJ_30MHZ_SDBND_SEL, 7, 1)
+    FIELD(GFLADJ, GFLADJ_30MHZ, 0, 6)
+
+static void reset_csr(USBDWC3 * s)
+{
+    int i = 0;
+    /*
+     * We reset all CSR regs except GCTL, GUCTL, GSTS, GSNPSID, GGPIO, GUID,
+     * GUSB2PHYCFGn registers and GUSB3PIPECTLn registers. We will skip PHY
+     * register as we don't implement them.
+     */
+    for (i = 0; i < R_GCTL; i++) {
+        register_reset(&s->regs_info[i]);
+    }
+
+    for (i = R_GCTL; i < R_GBUSERRADDRLO; i++) {
+        if (i == R_GUCTL1 || i == R_GPMSTS) {
+            register_reset(&s->regs_info[i]);
+        } else {
+            continue;
+        }
+    }
+
+    for (i = R_GBUSERRADDRLO; i < USB_DWC3_R_MAX; i++) {
+        register_reset(&s->regs_info[i]);
+    }
+
+    xhci_sysbus_reset(DEVICE(&s->sysbus_xhci));
+}
+
+static void usb_dwc3_gctl_postw(RegisterInfo *reg, uint64_t val64)
+{
+    USBDWC3 *s = USB_DWC3(reg->opaque);
+
+    if (ARRAY_FIELD_EX32(s->regs, GCTL, CORESOFTRESET)) {
+        reset_csr(s);
+    }
+}
+
+static void usb_dwc3_guid_postw(RegisterInfo *reg, uint64_t val64)
+{
+    USBDWC3 *s = USB_DWC3(reg->opaque);
+
+    s->regs[R_GUID] = s->cfg.dwc_usb3_user;
+}
+
+static const RegisterAccessInfo usb_dwc3_regs_info[] = {
+    {   .name = "GSBUSCFG0",  .addr = A_GSBUSCFG0,
+        .ro = 0xf300,
+    },{ .name = "GSBUSCFG1",  .addr = A_GSBUSCFG1,
+        .reset = 0x300,
+        .ro = 0xffffe0ff,
+    },{ .name = "GTXTHRCFG",  .addr = A_GTXTHRCFG,
+        .ro = 0xd000ffff,
+    },{ .name = "GRXTHRCFG",  .addr = A_GRXTHRCFG,
+        .ro = 0xd007e000,
+    },{ .name = "GCTL",  .addr = A_GCTL,
+        .reset = 0x30c13004, .post_write = usb_dwc3_gctl_postw,
+    },{ .name = "GPMSTS",  .addr = A_GPMSTS,
+        .ro = 0xfffffff,
+    },{ .name = "GSTS",  .addr = A_GSTS,
+        .reset = 0x7e800000,
+        .ro = 0xffffffcf,
+        .w1c = 0x30,
+    },{ .name = "GUCTL1",  .addr = A_GUCTL1,
+        .reset = 0x198a,
+        .ro = 0x7800,
+    },{ .name = "GSNPSID",  .addr = A_GSNPSID,
+        .reset = 0x5533330a,
+        .ro = 0xffffffff,
+    },{ .name = "GGPIO",  .addr = A_GGPIO,
+        .ro = 0xffff,
+    },{ .name = "GUID",  .addr = A_GUID,
+        .reset = 0x12345678, .post_write = usb_dwc3_guid_postw,
+    },{ .name = "GUCTL",  .addr = A_GUCTL,
+        .reset = 0x0c808010,
+        .ro = 0x1c8000,
+    },{ .name = "GBUSERRADDRLO",  .addr = A_GBUSERRADDRLO,
+        .ro = 0xffffffff,
+    },{ .name = "GBUSERRADDRHI",  .addr = A_GBUSERRADDRHI,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS0",  .addr = A_GHWPARAMS0,
+        .reset = 0x4020404a,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS1",  .addr = A_GHWPARAMS1,
+        .reset = 0x222493b,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS2",  .addr = A_GHWPARAMS2,
+        .reset = 0x12345678,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS3",  .addr = A_GHWPARAMS3,
+        .reset = 0x618c088,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS4",  .addr = A_GHWPARAMS4,
+        .reset = 0x47822004,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS5",  .addr = A_GHWPARAMS5,
+        .reset = 0x4202088,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS6",  .addr = A_GHWPARAMS6,
+        .reset = 0x7850c20,
+        .ro = 0xffffffff,
+    },{ .name = "GHWPARAMS7",  .addr = A_GHWPARAMS7,
+        .ro = 0xffffffff,
+    },{ .name = "GDBGFIFOSPACE",  .addr = A_GDBGFIFOSPACE,
+        .reset = 0xa0000,
+        .ro = 0xfffffe00,
+    },{ .name = "GUCTL2",  .addr = A_GUCTL2,
+        .reset = 0x40d,
+        .ro = 0x2000,
+    },{ .name = "GUSB2PHYCFG",  .addr = A_GUSB2PHYCFG,
+        .reset = 0x40102410,
+        .ro = 0x1e014030,
+    },{ .name = "GUSB2I2CCTL",  .addr = A_GUSB2I2CCTL,
+        .ro = 0xffffffff,
+    },{ .name = "GUSB2PHYACC_ULPI",  .addr = A_GUSB2PHYACC_ULPI,
+        .ro = 0xfd000000,
+    },{ .name = "GTXFIFOSIZ0",  .addr = A_GTXFIFOSIZ0,
+        .reset = 0x2c7000a,
+    },{ .name = "GTXFIFOSIZ1",  .addr = A_GTXFIFOSIZ1,
+        .reset = 0x2d10103,
+    },{ .name = "GTXFIFOSIZ2",  .addr = A_GTXFIFOSIZ2,
+        .reset = 0x3d40103,
+    },{ .name = "GTXFIFOSIZ3",  .addr = A_GTXFIFOSIZ3,
+        .reset = 0x4d70083,
+    },{ .name = "GTXFIFOSIZ4",  .addr = A_GTXFIFOSIZ4,
+        .reset = 0x55a0083,
+    },{ .name = "GTXFIFOSIZ5",  .addr = A_GTXFIFOSIZ5,
+        .reset = 0x5dd0083,
+    },{ .name = "GRXFIFOSIZ0",  .addr = A_GRXFIFOSIZ0,
+        .reset = 0x1c20105,
+    },{ .name = "GRXFIFOSIZ1",  .addr = A_GRXFIFOSIZ1,
+        .reset = 0x2c70000,
+    },{ .name = "GRXFIFOSIZ2",  .addr = A_GRXFIFOSIZ2,
+        .reset = 0x2c70000,
+    },{ .name = "GEVNTADRLO_0",  .addr = A_GEVNTADRLO_0,
+    },{ .name = "GEVNTADRHI_0",  .addr = A_GEVNTADRHI_0,
+    },{ .name = "GEVNTSIZ_0",  .addr = A_GEVNTSIZ_0,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTCOUNT_0",  .addr = A_GEVNTCOUNT_0,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTADRLO_1",  .addr = A_GEVNTADRLO_1,
+    },{ .name = "GEVNTADRHI_1",  .addr = A_GEVNTADRHI_1,
+    },{ .name = "GEVNTSIZ_1",  .addr = A_GEVNTSIZ_1,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTCOUNT_1",  .addr = A_GEVNTCOUNT_1,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTADRLO_2",  .addr = A_GEVNTADRLO_2,
+    },{ .name = "GEVNTADRHI_2",  .addr = A_GEVNTADRHI_2,
+    },{ .name = "GEVNTSIZ_2",  .addr = A_GEVNTSIZ_2,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTCOUNT_2",  .addr = A_GEVNTCOUNT_2,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTADRLO_3",  .addr = A_GEVNTADRLO_3,
+    },{ .name = "GEVNTADRHI_3",  .addr = A_GEVNTADRHI_3,
+    },{ .name = "GEVNTSIZ_3",  .addr = A_GEVNTSIZ_3,
+        .ro = 0x7fff0000,
+    },{ .name = "GEVNTCOUNT_3",  .addr = A_GEVNTCOUNT_3,
+        .ro = 0x7fff0000,
+    },{ .name = "GHWPARAMS8",  .addr = A_GHWPARAMS8,
+        .reset = 0x478,
+        .ro = 0xffffffff,
+    },{ .name = "GTXFIFOPRIDEV",  .addr = A_GTXFIFOPRIDEV,
+        .ro = 0xffffffc0,
+    },{ .name = "GTXFIFOPRIHST",  .addr = A_GTXFIFOPRIHST,
+        .ro = 0xfffffff8,
+    },{ .name = "GRXFIFOPRIHST",  .addr = A_GRXFIFOPRIHST,
+        .ro = 0xfffffff8,
+    },{ .name = "GDMAHLRATIO",  .addr = A_GDMAHLRATIO,
+        .ro = 0xffffe0e0,
+    },{ .name = "GFLADJ",  .addr = A_GFLADJ,
+        .reset = 0xc83f020,
+        .rsvd = 0x40,
+        .ro = 0x400040,
+    }
+};
+
+static void usb_dwc3_reset(DeviceState *dev)
+{
+    USBDWC3 *s = USB_DWC3(dev);
+    unsigned int i;
+
+    for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) {
+        register_reset(&s->regs_info[i]);
+    }
+    xhci_sysbus_reset(DEVICE(&s->sysbus_xhci));
+}
+
+static const MemoryRegionOps usb_dwc3_ops = {
+    .read = register_read_memory,
+    .write = register_write_memory,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+};
+
+static void usb_dwc3_realize(DeviceState *dev, Error **errp)
+{
+    USBDWC3 *s = USB_DWC3(dev);
+    Error *err = NULL;
+
+    sysbus_realize(SYS_BUS_DEVICE(&s->sysbus_xhci), &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+}
+
+static void usb_dwc3_init(Object *obj)
+{
+    USBDWC3 *s = USB_DWC3(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    RegisterInfoArray *reg_array;
+
+    memory_region_init(&s->iomem, obj, TYPE_USB_DWC3, USB_DWC3_R_MAX * 4);
+    reg_array =
+        register_init_block32(DEVICE(obj), usb_dwc3_regs_info,
+                              ARRAY_SIZE(usb_dwc3_regs_info),
+                              s->regs_info, s->regs,
+                              &usb_dwc3_ops,
+                              USB_DWC3_ERR_DEBUG,
+                              USB_DWC3_R_MAX * 4);
+    memory_region_add_subregion(&s->iomem,
+                                0x0,
+                                &reg_array->mem);
+    sysbus_init_mmio(sbd, &s->iomem);
+    object_initialize_child(obj, "dwc3-xhci", &s->sysbus_xhci,
+                            TYPE_XHCI_SYSBUS);
+    qdev_alias_all_properties(DEVICE(&s->sysbus_xhci), obj);
+
+    s->cfg.mode = HOST_MODE;
+}
+
+static Property usb_dwc3_properties[] = {
+    DEFINE_PROP_BOOL("usb2-mode", USBDWC3, cfg.usb2_mode, false),
+    DEFINE_PROP_UINT32("DWC_USB3_USERID", USBDWC3, cfg.dwc_usb3_user,
+                       0x12345678),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void usb_dwc3_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->reset = usb_dwc3_reset;
+    dc->realize = usb_dwc3_realize;
+    device_class_set_props(dc, usb_dwc3_properties);
+}
+
+static const TypeInfo usb_dwc3_info = {
+    .name          = TYPE_USB_DWC3,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(USBDWC3),
+    .class_init    = usb_dwc3_class_init,
+    .instance_init = usb_dwc3_init,
+};
+
+static void usb_dwc3_register_types(void)
+{
+    type_register_static(&usb_dwc3_info);
+}
+
+type_init(usb_dwc3_register_types)
diff --git a/include/hw/usb/hcd-dwc3.h b/include/hw/usb/hcd-dwc3.h
new file mode 100644
index 0000000..09708d0
--- /dev/null
+++ b/include/hw/usb/hcd-dwc3.h
@@ -0,0 +1,58 @@ 
+/*
+ * QEMU model of the USB DWC3 host controller emulation.
+ *
+ * Copyright (c) 2020 Xilinx Inc.
+ *
+ * Written by Vikram Garhwal<fnu.vikram@xilinx.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef HCD_DWC3_H
+#define HCD_DWC3_H
+
+#include "hw/usb/hcd-xhci.h"
+#include "hw/usb/hcd-xhci-sysbus.h"
+
+#define TYPE_USB_DWC3 "usb_dwc3"
+
+#define USB_DWC3(obj) \
+     OBJECT_CHECK(USBDWC3, (obj), TYPE_USB_DWC3)
+
+#define USB_DWC3_R_MAX ((0x530 / 4) + 1)
+
+typedef struct USBDWC3 {
+    SysBusDevice parent_obj;
+    MemoryRegion iomem;
+    MemoryRegion fifos;
+    XHCISysbusState sysbus_xhci;
+
+    uint32_t regs[USB_DWC3_R_MAX];
+    RegisterInfo regs_info[USB_DWC3_R_MAX];
+
+    struct {
+        uint8_t     mode;
+        bool        usb2_mode;
+        uint32_t    dwc_usb3_user;
+        uint8_t     caplen;
+        uint16_t    hciver;
+    } cfg;
+
+} USBDWC3;
+
+#endif