]> git.sur5r.net Git - u-boot/commitdiff
USB: gadaget: add Marvell controller support
authorLei Wen <leiwen@marvell.com>
Wed, 5 Oct 2011 15:11:40 +0000 (08:11 -0700)
committerRemy Bohmer <linux@bohmer.net>
Sun, 11 Dec 2011 13:40:38 +0000 (14:40 +0100)
Signed-off-by: Lei Wen <leiwen@marvell.com>
drivers/usb/gadget/Makefile
drivers/usb/gadget/gadget_chips.h
drivers/usb/gadget/mv_udc.c [new file with mode: 0644]
include/usb/mv_udc.h [new file with mode: 0644]

index 5e7271352c80f868878b1183288de20fa67a1844..820ca9bd81bbb2bbb74bd8a36fde31aae11d2a6a 100644 (file)
@@ -29,6 +29,7 @@ LIB   := $(obj)libusb_gadget.o
 ifdef CONFIG_USB_ETHER
 COBJS-y += ether.o epautoconf.o config.o usbstring.o
 COBJS-$(CONFIG_USB_ETH_RNDIS) += rndis.o
+COBJS-$(CONFIG_MV_UDC) += mv_udc.o
 else
 # Devices not related to the new gadget layer depend on CONFIG_USB_DEVICE
 ifdef CONFIG_USB_DEVICE
index 9bb7e2e77a36439c0fe3a3ea929f51cca850e999..5d7b638b38beb8525e50ef0f1b6270c5f0498189 100644 (file)
 #define        gadget_is_m66592(g)     0
 #endif
 
+#ifdef CONFIG_USB_GADGET_MV
+#define gadget_is_mv(g)        (!strcmp("mv_udc", (g)->name))
+#else
+#define gadget_is_mv(g)        0
+#endif
 
 /*
  * CONFIG_USB_GADGET_SX2
@@ -216,5 +221,7 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
                return 0x20;
        else if (gadget_is_m66592(gadget))
                return 0x21;
+       else if (gadget_is_mv(gadget))
+               return 0x22;
        return -ENOENT;
 }
diff --git a/drivers/usb/gadget/mv_udc.c b/drivers/usb/gadget/mv_udc.c
new file mode 100644 (file)
index 0000000..cdbdcfa
--- /dev/null
@@ -0,0 +1,499 @@
+/*
+ * Copyright 2011, Marvell Semiconductor Inc.
+ * Lei Wen <leiwen@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Back ported to the 8xx platform (from the 8260 platform) by
+ * Murray.Jensen@cmst.csiro.au, 27-Jan-01.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <config.h>
+#include <net.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <linux/types.h>
+#include <usb/mv_udc.h>
+
+#ifndef DEBUG
+#define DBG(x...) do {} while (0)
+#else
+#define DBG(x...) printf(x)
+static const char *reqname(unsigned r)
+{
+       switch (r) {
+       case USB_REQ_GET_STATUS: return "GET_STATUS";
+       case USB_REQ_CLEAR_FEATURE: return "CLEAR_FEATURE";
+       case USB_REQ_SET_FEATURE: return "SET_FEATURE";
+       case USB_REQ_SET_ADDRESS: return "SET_ADDRESS";
+       case USB_REQ_GET_DESCRIPTOR: return "GET_DESCRIPTOR";
+       case USB_REQ_SET_DESCRIPTOR: return "SET_DESCRIPTOR";
+       case USB_REQ_GET_CONFIGURATION: return "GET_CONFIGURATION";
+       case USB_REQ_SET_CONFIGURATION: return "SET_CONFIGURATION";
+       case USB_REQ_GET_INTERFACE: return "GET_INTERFACE";
+       case USB_REQ_SET_INTERFACE: return "SET_INTERFACE";
+       default: return "*UNKNOWN*";
+       }
+}
+#endif
+
+#define PAGE_SIZE      4096
+#define QH_MAXNUM      32
+static struct usb_endpoint_descriptor ep0_out_desc = {
+       .bLength = sizeof(struct usb_endpoint_descriptor),
+       .bDescriptorType = USB_DT_ENDPOINT,
+       .bEndpointAddress = 0,
+       .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
+};
+
+static struct usb_endpoint_descriptor ep0_in_desc = {
+       .bLength = sizeof(struct usb_endpoint_descriptor),
+       .bDescriptorType = USB_DT_ENDPOINT,
+       .bEndpointAddress = USB_DIR_IN,
+       .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
+};
+
+struct ept_queue_head *epts;
+struct ept_queue_item *items[2 * NUM_ENDPOINTS];
+static int mv_pullup(struct usb_gadget *gadget, int is_on);
+static int mv_ep_enable(struct usb_ep *ep,
+               const struct usb_endpoint_descriptor *desc);
+static int mv_ep_disable(struct usb_ep *ep);
+static int mv_ep_queue(struct usb_ep *ep,
+               struct usb_request *req, gfp_t gfp_flags);
+static struct usb_request *
+mv_ep_alloc_request(struct usb_ep *ep, unsigned int gfp_flags);
+static void mv_ep_free_request(struct usb_ep *ep, struct usb_request *_req);
+
+static struct usb_gadget_ops mv_udc_ops = {
+       .pullup = mv_pullup,
+};
+
+static struct usb_ep_ops mv_ep_ops = {
+       .enable         = mv_ep_enable,
+       .disable        = mv_ep_disable,
+       .queue          = mv_ep_queue,
+       .alloc_request  = mv_ep_alloc_request,
+       .free_request   = mv_ep_free_request,
+};
+
+static struct mv_ep ep[2 * NUM_ENDPOINTS];
+static struct mv_drv controller = {
+       .gadget = {
+               .ep0 = &ep[0].ep,
+               .name = "mv_udc",
+       },
+};
+
+static struct usb_request *
+mv_ep_alloc_request(struct usb_ep *ep, unsigned int gfp_flags)
+{
+       struct mv_ep *mv_ep = container_of(ep, struct mv_ep, ep);
+       return &mv_ep->req;
+}
+
+static void mv_ep_free_request(struct usb_ep *ep, struct usb_request *_req)
+{
+       return;
+}
+
+static void ep_enable(int num, int in)
+{
+       struct ept_queue_head *head;
+       struct mv_udc *udc = controller.udc;
+       unsigned n;
+       head = epts + 2*num + in;
+
+       n = readl(&udc->epctrl[num]);
+       if (in)
+               n |= (CTRL_TXE | CTRL_TXR | CTRL_TXT_BULK);
+       else
+               n |= (CTRL_RXE | CTRL_RXR | CTRL_RXT_BULK);
+
+       if (num != 0)
+               head->config = CONFIG_MAX_PKT(EP_MAX_PACKET_SIZE) | CONFIG_ZLT;
+       writel(n, &udc->epctrl[num]);
+}
+
+static int mv_ep_enable(struct usb_ep *ep,
+               const struct usb_endpoint_descriptor *desc)
+{
+       struct mv_ep *mv_ep = container_of(ep, struct mv_ep, ep);
+       int num, in;
+       num = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+       in = (desc->bEndpointAddress & USB_DIR_IN) != 0;
+       ep_enable(num, in);
+       mv_ep->desc = desc;
+       return 0;
+}
+
+static int mv_ep_disable(struct usb_ep *ep)
+{
+       return 0;
+}
+
+static int mv_ep_queue(struct usb_ep *ep,
+               struct usb_request *req, gfp_t gfp_flags)
+{
+       struct mv_ep *mv_ep = container_of(ep, struct mv_ep, ep);
+       struct mv_udc *udc = controller.udc;
+       struct ept_queue_item *item;
+       struct ept_queue_head *head;
+       unsigned phys;
+       int bit, num, len, in;
+       num = mv_ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+       in = (mv_ep->desc->bEndpointAddress & USB_DIR_IN) != 0;
+       item = items[2 * num + in];
+       head = epts + 2 * num + in;
+       phys = (unsigned)req->buf;
+       len = req->length;
+
+       item->next = TERMINATE;
+       item->info = INFO_BYTES(len) | INFO_IOC | INFO_ACTIVE;
+       item->page0 = phys;
+       item->page1 = (phys & 0xfffff000) + 0x1000;
+
+       head->next = (unsigned) item;
+       head->info = 0;
+
+       DBG("ept%d %s queue len %x, buffer %x\n",
+                       num, in ? "in" : "out", len, phys);
+
+       if (in)
+               bit = EPT_TX(num);
+       else
+               bit = EPT_RX(num);
+
+       flush_cache(phys, len);
+       flush_cache((unsigned long)item, sizeof(struct ept_queue_item));
+       writel(bit, &udc->epprime);
+
+       return 0;
+}
+
+static void handle_ep_complete(struct mv_ep *ep)
+{
+       struct ept_queue_item *item;
+       int num, in, len;
+       num = ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+       in = (ep->desc->bEndpointAddress & USB_DIR_IN) != 0;
+       if (num == 0)
+               ep->desc = &ep0_out_desc;
+       item = items[2 * num + in];
+
+       if (item->info & 0xff)
+               printf("EP%d/%s FAIL nfo=%x pg0=%x\n",
+                       num, in ? "in" : "out", item->info, item->page0);
+
+       len = (item->info >> 16) & 0x7fff;
+       ep->req.length -= len;
+       DBG("ept%d %s complete %x\n",
+                       num, in ? "in" : "out", len);
+       ep->req.complete(&ep->ep, &ep->req);
+       if (num == 0) {
+               ep->req.length = 0;
+               usb_ep_queue(&ep->ep, &ep->req, 0);
+               ep->desc = &ep0_in_desc;
+       }
+}
+
+#define SETUP(type, request) (((type) << 8) | (request))
+
+static void handle_setup(void)
+{
+       struct usb_request *req = &ep[0].req;
+       struct mv_udc *udc = controller.udc;
+       struct ept_queue_head *head;
+       struct usb_ctrlrequest r;
+       int status = 0;
+       int num, in, _num, _in, i;
+       char *buf;
+       head = epts;
+
+       flush_cache((unsigned long)head, sizeof(struct ept_queue_head));
+       memcpy(&r, head->setup_data, sizeof(struct usb_ctrlrequest));
+       writel(EPT_RX(0), &udc->epstat);
+       DBG("handle setup %s, %x, %x index %x value %x\n", reqname(r.bRequest),
+           r.bRequestType, r.bRequest, r.wIndex, r.wValue);
+
+       switch (SETUP(r.bRequestType, r.bRequest)) {
+       case SETUP(USB_RECIP_ENDPOINT, USB_REQ_CLEAR_FEATURE):
+               _num = r.wIndex & 15;
+               _in = !!(r.wIndex & 0x80);
+
+               if ((r.wValue == 0) && (r.wLength == 0)) {
+                       req->length = 0;
+                       for (i = 0; i < NUM_ENDPOINTS; i++) {
+                               if (!ep[i].desc)
+                                       continue;
+                               num = ep[i].desc->bEndpointAddress
+                                       & USB_ENDPOINT_NUMBER_MASK;
+                               in = (ep[i].desc->bEndpointAddress
+                                               & USB_DIR_IN) != 0;
+                               if ((num == _num) && (in == _in)) {
+                                       ep_enable(num, in);
+                                       usb_ep_queue(controller.gadget.ep0,
+                                                       req, 0);
+                                       break;
+                               }
+                       }
+               }
+               return;
+
+       case SETUP(USB_RECIP_DEVICE, USB_REQ_SET_ADDRESS):
+               /*
+                * write address delayed (will take effect
+                * after the next IN txn)
+                */
+               writel((r.wValue << 25) | (1 << 24), &udc->devaddr);
+               req->length = 0;
+               usb_ep_queue(controller.gadget.ep0, req, 0);
+               return;
+
+       case SETUP(USB_DIR_IN | USB_RECIP_DEVICE, USB_REQ_GET_STATUS):
+               req->length = 2;
+               buf = (char *)req->buf;
+               buf[0] = 1 << USB_DEVICE_SELF_POWERED;
+               buf[1] = 0;
+               usb_ep_queue(controller.gadget.ep0, req, 0);
+               return;
+       }
+       /* pass request up to the gadget driver */
+       if (controller.driver)
+               status = controller.driver->setup(&controller.gadget, &r);
+       else
+               status = -ENODEV;
+
+       if (!status)
+               return;
+       DBG("STALL reqname %s type %x value %x, index %x\n",
+           reqname(r.bRequest), r.bRequestType, r.wValue, r.wIndex);
+       writel((1<<16) | (1 << 0), &udc->epctrl[0]);
+}
+
+static void stop_activity(void)
+{
+       int i, num, in;
+       struct ept_queue_head *head;
+       struct mv_udc *udc = controller.udc;
+       writel(readl(&udc->epcomp), &udc->epcomp);
+       writel(readl(&udc->epstat), &udc->epstat);
+       writel(0xffffffff, &udc->epflush);
+
+       /* error out any pending reqs */
+       for (i = 0; i < NUM_ENDPOINTS; i++) {
+               if (i != 0)
+                       writel(0, &udc->epctrl[i]);
+               if (ep[i].desc) {
+                       num = ep[i].desc->bEndpointAddress
+                               & USB_ENDPOINT_NUMBER_MASK;
+                       in = (ep[i].desc->bEndpointAddress & USB_DIR_IN) != 0;
+                       head = epts + (num * 2) + (in);
+                       head->info = INFO_ACTIVE;
+               }
+       }
+}
+
+void udc_irq(void)
+{
+       struct mv_udc *udc = controller.udc;
+       unsigned n = readl(&udc->usbsts);
+       writel(n, &udc->usbsts);
+       int bit, i, num, in;
+
+       n &= (STS_SLI | STS_URI | STS_PCI | STS_UI | STS_UEI);
+       if (n == 0)
+               return;
+
+       if (n & STS_URI) {
+               DBG("-- reset --\n");
+               stop_activity();
+       }
+       if (n & STS_SLI)
+               DBG("-- suspend --\n");
+
+       if (n & STS_PCI) {
+               DBG("-- portchange --\n");
+               bit = (readl(&udc->portsc) >> 26) & 3;
+               if (bit == 2) {
+                       controller.gadget.speed = USB_SPEED_HIGH;
+                       for (i = 1; i < NUM_ENDPOINTS && n; i++)
+                               if (ep[i].desc)
+                                       ep[i].ep.maxpacket = 512;
+               } else {
+                       controller.gadget.speed = USB_SPEED_FULL;
+               }
+       }
+
+       if (n & STS_UEI)
+               printf("<UEI %x>\n", readl(&udc->epcomp));
+
+       if ((n & STS_UI) || (n & STS_UEI)) {
+               n = readl(&udc->epstat);
+               if (n & EPT_RX(0))
+                       handle_setup();
+
+               n = readl(&udc->epcomp);
+               if (n != 0)
+                       writel(n, &udc->epcomp);
+
+               for (i = 0; i < NUM_ENDPOINTS && n; i++) {
+                       if (ep[i].desc) {
+                               num = ep[i].desc->bEndpointAddress
+                                       & USB_ENDPOINT_NUMBER_MASK;
+                               in = (ep[i].desc->bEndpointAddress
+                                               & USB_DIR_IN) != 0;
+                               bit = (in) ? EPT_TX(num) : EPT_RX(num);
+                               if (n & bit)
+                                       handle_ep_complete(&ep[i]);
+                       }
+               }
+       }
+}
+
+int usb_gadget_handle_interrupts(void)
+{
+       u32 value;
+       struct mv_udc *udc = controller.udc;
+
+       value = readl(&udc->usbsts);
+       if (value)
+               udc_irq();
+
+       return value;
+}
+
+static int mv_pullup(struct usb_gadget *gadget, int is_on)
+{
+       struct mv_udc *udc = controller.udc;
+       if (is_on) {
+               /* RESET */
+               writel(USBCMD_ITC(MICRO_8FRAME) | USBCMD_RST, &udc->usbcmd);
+               udelay(200);
+
+               writel((unsigned) epts, &udc->epinitaddr);
+
+               /* select DEVICE mode */
+               writel(USBMODE_DEVICE, &udc->usbmode);
+
+               writel(0xffffffff, &udc->epflush);
+
+               /* Turn on the USB connection by enabling the pullup resistor */
+               writel(USBCMD_ITC(MICRO_8FRAME) | USBCMD_RUN, &udc->usbcmd);
+       } else {
+               stop_activity();
+               writel(USBCMD_FS2, &udc->usbcmd);
+               udelay(800);
+               if (controller.driver)
+                       controller.driver->disconnect(gadget);
+       }
+
+       return 0;
+}
+
+void udc_disconnect(void)
+{
+       struct mv_udc *udc = controller.udc;
+       /* disable pullup */
+       stop_activity();
+       writel(USBCMD_FS2, &udc->usbcmd);
+       udelay(800);
+       if (controller.driver)
+               controller.driver->disconnect(&controller.gadget);
+}
+
+static int mvudc_probe(void)
+{
+       struct ept_queue_head *head;
+       int i;
+
+       controller.gadget.ops = &mv_udc_ops;
+       controller.udc = (struct mv_udc *)CONFIG_USB_REG_BASE;
+       epts = memalign(PAGE_SIZE, QH_MAXNUM * sizeof(struct ept_queue_head));
+       memset(epts, 0, QH_MAXNUM * sizeof(struct ept_queue_head));
+       for (i = 0; i < 2 * NUM_ENDPOINTS; i++) {
+               /*
+                * For item0 and item1, they are served as ep0
+                * out&in seperately
+                */
+               head = epts + i;
+               if (i < 2)
+                       head->config = CONFIG_MAX_PKT(EP0_MAX_PACKET_SIZE)
+                               | CONFIG_ZLT | CONFIG_IOS;
+               else
+                       head->config = CONFIG_MAX_PKT(EP_MAX_PACKET_SIZE)
+                               | CONFIG_ZLT;
+               head->next = TERMINATE;
+               head->info = 0;
+
+               items[i] = memalign(PAGE_SIZE, sizeof(struct ept_queue_item));
+       }
+
+       INIT_LIST_HEAD(&controller.gadget.ep_list);
+       ep[0].ep.maxpacket = 64;
+       ep[0].ep.name = "ep0";
+       ep[0].desc = &ep0_in_desc;
+       INIT_LIST_HEAD(&controller.gadget.ep0->ep_list);
+       for (i = 0; i < 2 * NUM_ENDPOINTS; i++) {
+               if (i != 0) {
+                       ep[i].ep.maxpacket = 512;
+                       ep[i].ep.name = "ep-";
+                       list_add_tail(&ep[i].ep.ep_list,
+                                     &controller.gadget.ep_list);
+                       ep[i].desc = NULL;
+               }
+               ep[i].ep.ops = &mv_ep_ops;
+       }
+       return 0;
+}
+
+int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+{
+       struct mv_udc *udc = controller.udc;
+       int             retval;
+
+       if (!driver
+                       || driver->speed < USB_SPEED_FULL
+                       || !driver->bind
+                       || !driver->setup) {
+               DBG("bad parameter.\n");
+               return -EINVAL;
+       }
+
+       if (!mvudc_probe()) {
+               usb_lowlevel_init();
+               /* select ULPI phy */
+               writel(PTS(PTS_ENABLE) | PFSC, &udc->portsc);
+       }
+       retval = driver->bind(&controller.gadget);
+       if (retval) {
+               DBG("driver->bind() returned %d\n", retval);
+               return retval;
+       }
+       controller.driver = driver;
+
+       return 0;
+}
+
+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+{
+       return 0;
+}
diff --git a/include/usb/mv_udc.h b/include/usb/mv_udc.h
new file mode 100644 (file)
index 0000000..51d36c3
--- /dev/null
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2011, Marvell Semiconductor Inc.
+ * Lei Wen <leiwen@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+#ifndef __MV_UDC_H__
+#define __MV_UDC_H__
+
+#include <asm/byteorder.h>
+#include <asm/errno.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+/* Endpoint 0 states */
+#define EP0_IDLE               0
+#define EP0_IN_DATA            1
+#define EP0_OUT_DATA           2
+#define EP0_XFER_COMPLETE      3
+
+
+/* Endpoint parameters */
+#define MAX_ENDPOINTS          4
+#define EP_MAX_PACKET_SIZE     0x200
+
+#define EP0_MAX_PACKET_SIZE    64
+#define UDC_OUT_ENDPOINT        0x02
+#define UDC_OUT_PACKET_SIZE    EP_MAX_PACKET_SIZE
+#define UDC_IN_ENDPOINT         0x01
+#define UDC_IN_PACKET_SIZE      EP_MAX_PACKET_SIZE
+#define UDC_INT_ENDPOINT        0x05
+#define UDC_INT_PACKET_SIZE     EP_MAX_PACKET_SIZE
+#define UDC_BULK_PACKET_SIZE    EP_MAX_PACKET_SIZE
+
+#define        NUM_ENDPOINTS   6
+#define                REQ_COUNT       12
+struct mv_ep {
+       struct usb_ep ep;
+       struct usb_request req;
+       struct list_head queue;
+       const struct usb_endpoint_descriptor *desc;
+};
+
+struct mv_udc {
+       u32 pad0[80];
+#define MICRO_8FRAME   0x8
+#define USBCMD_ITC(x)  (((x > 0xff) ? 0xff : x) << 16)
+#define USBCMD_FS2     (1 << 15)
+#define USBCMD_RST     (1 << 1)
+#define USBCMD_RUN     (1)
+       u32 usbcmd;             /* 0x140 */
+#define STS_SLI                (1 << 8)
+#define STS_URI                (1 << 6)
+#define STS_PCI                (1 << 2)
+#define STS_UEI                (1 << 1)
+#define STS_UI         (1 << 0)
+       u32 usbsts;             /* 0x144 */
+       u32 pad1[3];
+       u32 devaddr;            /* 0x154 */
+       u32 epinitaddr;         /* 0x158 */
+       u32 pad2[10];
+#define PTS_ENABLE     2
+#define PTS(x)         ((x & 0x3) << 30)
+#define PFSC           (1 << 24)
+       u32 portsc;             /* 0x184 */
+       u32 pad3[8];
+#define USBMODE_DEVICE 2
+       u32 usbmode;            /* 0x1a8 */
+       u32 epstat;             /* 0x1ac */
+#define EPT_TX(x)      (1 << ((x & 0xffff) + 16))
+#define EPT_RX(x)      (1 << (x & 0xffff))
+       u32 epprime;            /* 0x1b0 */
+       u32 epflush;            /* 0x1b4 */
+       u32 pad4;
+       u32 epcomp;             /* 0x1bc */
+#define CTRL_TXE              (1 << 23)
+#define CTRL_TXR              (1 << 22)
+#define CTRL_RXE              (1 << 7)
+#define CTRL_RXR              (1 << 6)
+#define CTRL_TXT_BULK         (2 << 18)
+#define CTRL_RXT_BULK         (2 << 2)
+       u32 epctrl[16];         /* 0x1c0 */
+};
+
+struct mv_drv {
+       struct usb_gadget               gadget;
+       struct usb_gadget_driver                *driver;
+       struct mv_udc                   *udc;
+};
+
+struct ept_queue_head {
+       unsigned config;
+       unsigned current; /* read-only */
+
+       unsigned next;
+       unsigned info;
+       unsigned page0;
+       unsigned page1;
+       unsigned page2;
+       unsigned page3;
+       unsigned page4;
+       unsigned reserved_0;
+
+       unsigned char setup_data[8];
+
+       unsigned reserved_1;
+       unsigned reserved_2;
+       unsigned reserved_3;
+       unsigned reserved_4;
+};
+
+#define CONFIG_MAX_PKT(n)     ((n) << 16)
+#define CONFIG_ZLT            (1 << 29)    /* stop on zero-len xfer */
+#define CONFIG_IOS            (1 << 15)    /* IRQ on setup */
+
+struct ept_queue_item {
+       unsigned next;
+       unsigned info;
+       unsigned page0;
+       unsigned page1;
+       unsigned page2;
+       unsigned page3;
+       unsigned page4;
+       unsigned reserved;
+};
+
+#define TERMINATE 1
+#define INFO_BYTES(n)         ((n) << 16)
+#define INFO_IOC              (1 << 15)
+#define INFO_ACTIVE           (1 << 7)
+#define INFO_HALTED           (1 << 6)
+#define INFO_BUFFER_ERROR     (1 << 5)
+#define INFO_TX_ERROR         (1 << 3)
+
+extern int usb_lowlevel_init(void);
+#endif /* __MV_UDC_H__ */