2 * Most of this source has been derived from the Linux USB
4 * (C) Copyright Linus Torvalds 1999
5 * (C) Copyright Johannes Erdfelt 1999-2001
6 * (C) Copyright Andreas Gal 1999
7 * (C) Copyright Gregory P. Smith 1999
8 * (C) Copyright Deti Fliegl 1999 (new USB architecture)
9 * (C) Copyright Randy Dunlap 2000
10 * (C) Copyright David Brownell 2000 (kernel hotplug, usb_device_id)
11 * (C) Copyright Yggdrasil Computing, Inc. 2000
12 * (usb_device_id matching changes by Adam J. Richter)
15 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
17 * SPDX-License-Identifier: GPL-2.0+
20 /****************************************************************************
22 * Probes device for being a hub and configurate it
30 #include <asm/processor.h>
31 #include <asm/unaligned.h>
32 #include <linux/ctype.h>
33 #include <linux/list.h>
34 #include <asm/byteorder.h>
36 #include <asm/state.h>
38 #include <asm/unaligned.h>
41 DECLARE_GLOBAL_DATA_PTR
;
45 #include <asm/4xx_pci.h>
48 #define USB_BUFSIZ 512
50 #define HUB_SHORT_RESET_TIME 20
51 #define HUB_LONG_RESET_TIME 200
53 #define PORT_OVERCURRENT_MAX_SCAN_COUNT 3
55 struct usb_device_scan
{
56 struct usb_device
*dev
; /* USB hub device to scan */
57 struct usb_hub_device
*hub
; /* USB hub struct */
58 int port
; /* USB port to scan */
59 struct list_head list
;
62 /* TODO(sjg@chromium.org): Remove this when CONFIG_DM_USB is defined */
63 static struct usb_hub_device hub_dev
[USB_MAX_HUB
];
64 static int usb_hub_index
;
65 static LIST_HEAD(usb_scan_list
);
67 __weak
void usb_hub_reset_devices(int port
)
72 static int usb_get_hub_descriptor(struct usb_device
*dev
, void *data
, int size
)
74 return usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
75 USB_REQ_GET_DESCRIPTOR
, USB_DIR_IN
| USB_RT_HUB
,
76 USB_DT_HUB
<< 8, 0, data
, size
, USB_CNTL_TIMEOUT
);
79 static int usb_clear_port_feature(struct usb_device
*dev
, int port
, int feature
)
81 return usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
82 USB_REQ_CLEAR_FEATURE
, USB_RT_PORT
, feature
,
83 port
, NULL
, 0, USB_CNTL_TIMEOUT
);
86 static int usb_set_port_feature(struct usb_device
*dev
, int port
, int feature
)
88 return usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
89 USB_REQ_SET_FEATURE
, USB_RT_PORT
, feature
,
90 port
, NULL
, 0, USB_CNTL_TIMEOUT
);
93 static int usb_get_hub_status(struct usb_device
*dev
, void *data
)
95 return usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
96 USB_REQ_GET_STATUS
, USB_DIR_IN
| USB_RT_HUB
, 0, 0,
97 data
, sizeof(struct usb_hub_status
), USB_CNTL_TIMEOUT
);
100 int usb_get_port_status(struct usb_device
*dev
, int port
, void *data
)
102 return usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
103 USB_REQ_GET_STATUS
, USB_DIR_IN
| USB_RT_PORT
, 0, port
,
104 data
, sizeof(struct usb_hub_status
), USB_CNTL_TIMEOUT
);
108 static void usb_hub_power_on(struct usb_hub_device
*hub
)
111 struct usb_device
*dev
;
112 unsigned pgood_delay
= hub
->desc
.bPwrOn2PwrGood
* 2;
117 debug("enabling power on all ports\n");
118 for (i
= 0; i
< dev
->maxchild
; i
++) {
119 usb_set_port_feature(dev
, i
+ 1, USB_PORT_FEAT_POWER
);
120 debug("port %d returns %lX\n", i
+ 1, dev
->status
);
123 #ifdef CONFIG_SANDBOX
125 * Don't set timeout / delay values here. This results
126 * in these values still being reset to 0.
128 if (state_get_skip_delays())
133 * Wait for power to become stable,
134 * plus spec-defined max time for device to connect
135 * but allow this time to be increased via env variable as some
136 * devices break the spec and require longer warm-up times
138 env
= getenv("usb_pgood_delay");
140 pgood_delay
= max(pgood_delay
,
141 (unsigned)simple_strtol(env
, NULL
, 0));
142 debug("pgood_delay=%dms\n", pgood_delay
);
145 * Do a minimum delay of the larger value of 100ms or pgood_delay
146 * so that the power can stablize before the devices are queried
148 hub
->query_delay
= get_timer(0) + max(100, (int)pgood_delay
);
151 * Record the power-on timeout here. The max. delay (timeout)
152 * will be done based on this value in the USB port loop in
153 * usb_hub_configure() later.
155 hub
->connect_timeout
= hub
->query_delay
+ 1000;
156 debug("devnum=%d poweron: query_delay=%d connect_timeout=%d\n",
157 dev
->devnum
, max(100, (int)pgood_delay
),
158 max(100, (int)pgood_delay
) + 1000);
161 void usb_hub_reset(void)
165 /* Zero out global hub_dev in case its re-used again */
166 memset(hub_dev
, 0, sizeof(hub_dev
));
169 static struct usb_hub_device
*usb_hub_allocate(void)
171 if (usb_hub_index
< USB_MAX_HUB
)
172 return &hub_dev
[usb_hub_index
++];
174 printf("ERROR: USB_MAX_HUB (%d) reached\n", USB_MAX_HUB
);
180 static inline char *portspeed(int portstatus
)
184 switch (portstatus
& USB_PORT_STAT_SPEED_MASK
) {
185 case USB_PORT_STAT_SUPER_SPEED
:
186 speed_str
= "5 Gb/s";
188 case USB_PORT_STAT_HIGH_SPEED
:
189 speed_str
= "480 Mb/s";
191 case USB_PORT_STAT_LOW_SPEED
:
192 speed_str
= "1.5 Mb/s";
195 speed_str
= "12 Mb/s";
202 int legacy_hub_port_reset(struct usb_device
*dev
, int port
,
203 unsigned short *portstat
)
206 ALLOC_CACHE_ALIGN_BUFFER(struct usb_port_status
, portsts
, 1);
207 unsigned short portstatus
, portchange
;
208 int delay
= HUB_SHORT_RESET_TIME
; /* start with short reset delay */
211 debug("%s: resetting '%s' port %d...\n", __func__
, dev
->dev
->name
,
214 debug("%s: resetting port %d...\n", __func__
, port
+ 1);
216 for (tries
= 0; tries
< MAX_TRIES
; tries
++) {
217 err
= usb_set_port_feature(dev
, port
+ 1, USB_PORT_FEAT_RESET
);
223 if (usb_get_port_status(dev
, port
+ 1, portsts
) < 0) {
224 debug("get_port_status failed status %lX\n",
228 portstatus
= le16_to_cpu(portsts
->wPortStatus
);
229 portchange
= le16_to_cpu(portsts
->wPortChange
);
231 debug("portstatus %x, change %x, %s\n", portstatus
, portchange
,
232 portspeed(portstatus
));
234 debug("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \
235 " USB_PORT_STAT_ENABLE %d\n",
236 (portchange
& USB_PORT_STAT_C_CONNECTION
) ? 1 : 0,
237 (portstatus
& USB_PORT_STAT_CONNECTION
) ? 1 : 0,
238 (portstatus
& USB_PORT_STAT_ENABLE
) ? 1 : 0);
241 * Perhaps we should check for the following here:
242 * - C_CONNECTION hasn't been set.
243 * - CONNECTION is still set.
245 * Doing so would ensure that the device is still connected
246 * to the bus, and hasn't been unplugged or replaced while the
247 * USB bus reset was going on.
249 * However, if we do that, then (at least) a San Disk Ultra
250 * USB 3.0 16GB device fails to reset on (at least) an NVIDIA
251 * Tegra Jetson TK1 board. For some reason, the device appears
252 * to briefly drop off the bus when this second bus reset is
253 * executed, yet if we retry this loop, it'll eventually come
254 * back after another reset or two.
257 if (portstatus
& USB_PORT_STAT_ENABLE
)
260 /* Switch to long reset delay for the next round */
261 delay
= HUB_LONG_RESET_TIME
;
264 if (tries
== MAX_TRIES
) {
265 debug("Cannot enable port %i after %i retries, " \
266 "disabling port.\n", port
+ 1, MAX_TRIES
);
267 debug("Maybe the USB cable is bad?\n");
271 usb_clear_port_feature(dev
, port
+ 1, USB_PORT_FEAT_C_RESET
);
272 *portstat
= portstatus
;
277 int hub_port_reset(struct udevice
*dev
, int port
, unsigned short *portstat
)
279 struct usb_device
*udev
= dev_get_parent_priv(dev
);
281 return legacy_hub_port_reset(udev
, port
, portstat
);
285 int usb_hub_port_connect_change(struct usb_device
*dev
, int port
)
287 ALLOC_CACHE_ALIGN_BUFFER(struct usb_port_status
, portsts
, 1);
288 unsigned short portstatus
;
292 ret
= usb_get_port_status(dev
, port
+ 1, portsts
);
294 debug("get_port_status failed\n");
298 portstatus
= le16_to_cpu(portsts
->wPortStatus
);
299 debug("portstatus %x, change %x, %s\n",
301 le16_to_cpu(portsts
->wPortChange
),
302 portspeed(portstatus
));
304 /* Clear the connection change status */
305 usb_clear_port_feature(dev
, port
+ 1, USB_PORT_FEAT_C_CONNECTION
);
307 /* Disconnect any existing devices under this port */
308 if (((!(portstatus
& USB_PORT_STAT_CONNECTION
)) &&
309 (!(portstatus
& USB_PORT_STAT_ENABLE
))) ||
310 usb_device_has_child_on_port(dev
, port
)) {
311 debug("usb_disconnect(&hub->children[port]);\n");
312 /* Return now if nothing is connected */
313 if (!(portstatus
& USB_PORT_STAT_CONNECTION
))
318 ret
= legacy_hub_port_reset(dev
, port
, &portstatus
);
321 printf("cannot reset port %i!?\n", port
+ 1);
325 switch (portstatus
& USB_PORT_STAT_SPEED_MASK
) {
326 case USB_PORT_STAT_SUPER_SPEED
:
327 speed
= USB_SPEED_SUPER
;
329 case USB_PORT_STAT_HIGH_SPEED
:
330 speed
= USB_SPEED_HIGH
;
332 case USB_PORT_STAT_LOW_SPEED
:
333 speed
= USB_SPEED_LOW
;
336 speed
= USB_SPEED_FULL
;
341 struct udevice
*child
;
343 ret
= usb_scan_device(dev
->dev
, port
+ 1, speed
, &child
);
345 struct usb_device
*usb
;
347 ret
= usb_alloc_new_device(dev
->controller
, &usb
);
349 printf("cannot create new device: ret=%d", ret
);
353 dev
->children
[port
] = usb
;
356 usb
->portnr
= port
+ 1;
357 /* Run it through the hoops (find a driver, etc) */
358 ret
= usb_new_device(usb
);
360 /* Woops, disable the port */
361 usb_free_device(dev
->controller
);
362 dev
->children
[port
] = NULL
;
366 debug("hub: disabling port %d\n", port
+ 1);
367 usb_clear_port_feature(dev
, port
+ 1, USB_PORT_FEAT_ENABLE
);
373 static int usb_scan_port(struct usb_device_scan
*usb_scan
)
375 ALLOC_CACHE_ALIGN_BUFFER(struct usb_port_status
, portsts
, 1);
376 unsigned short portstatus
;
377 unsigned short portchange
;
378 struct usb_device
*dev
;
379 struct usb_hub_device
*hub
;
388 * Don't talk to the device before the query delay is expired.
389 * This is needed for voltages to stabalize.
391 if (get_timer(0) < hub
->query_delay
)
394 ret
= usb_get_port_status(dev
, i
+ 1, portsts
);
396 debug("get_port_status failed\n");
397 if (get_timer(0) >= hub
->connect_timeout
) {
398 debug("devnum=%d port=%d: timeout\n",
400 /* Remove this device from scanning list */
401 list_del(&usb_scan
->list
);
408 portstatus
= le16_to_cpu(portsts
->wPortStatus
);
409 portchange
= le16_to_cpu(portsts
->wPortChange
);
410 debug("Port %d Status %X Change %X\n", i
+ 1, portstatus
, portchange
);
412 /* No connection change happened, wait a bit more. */
413 if (!(portchange
& USB_PORT_STAT_C_CONNECTION
)) {
414 if (get_timer(0) >= hub
->connect_timeout
) {
415 debug("devnum=%d port=%d: timeout\n",
417 /* Remove this device from scanning list */
418 list_del(&usb_scan
->list
);
425 /* Test if the connection came up, and if not exit */
426 if (!(portstatus
& USB_PORT_STAT_CONNECTION
))
429 /* A new USB device is ready at this point */
430 debug("devnum=%d port=%d: USB dev found\n", dev
->devnum
, i
+ 1);
432 usb_hub_port_connect_change(dev
, i
);
434 if (portchange
& USB_PORT_STAT_C_ENABLE
) {
435 debug("port %d enable change, status %x\n", i
+ 1, portstatus
);
436 usb_clear_port_feature(dev
, i
+ 1, USB_PORT_FEAT_C_ENABLE
);
438 * The following hack causes a ghost device problem
441 #ifndef CONFIG_USB_EHCI_FARADAY
443 * EM interference sometimes causes bad shielded USB
444 * devices to be shutdown by the hub, this hack enables
445 * them again. Works at least with mouse driver
447 if (!(portstatus
& USB_PORT_STAT_ENABLE
) &&
448 (portstatus
& USB_PORT_STAT_CONNECTION
) &&
449 usb_device_has_child_on_port(dev
, i
)) {
450 debug("already running port %i disabled by hub (EMI?), re-enabling...\n",
452 usb_hub_port_connect_change(dev
, i
);
457 if (portstatus
& USB_PORT_STAT_SUSPEND
) {
458 debug("port %d suspend change\n", i
+ 1);
459 usb_clear_port_feature(dev
, i
+ 1, USB_PORT_FEAT_SUSPEND
);
462 if (portchange
& USB_PORT_STAT_C_OVERCURRENT
) {
463 debug("port %d over-current change\n", i
+ 1);
464 usb_clear_port_feature(dev
, i
+ 1,
465 USB_PORT_FEAT_C_OVER_CURRENT
);
466 /* Only power-on this one port */
467 usb_set_port_feature(dev
, i
+ 1, USB_PORT_FEAT_POWER
);
468 hub
->overcurrent_count
[i
]++;
471 * If the max-scan-count is not reached, return without removing
472 * the device from scan-list. This will re-issue a new scan.
474 if (hub
->overcurrent_count
[i
] <=
475 PORT_OVERCURRENT_MAX_SCAN_COUNT
)
478 /* Otherwise the device will get removed */
479 printf("Port %d over-current occurred %d times\n", i
+ 1,
480 hub
->overcurrent_count
[i
]);
483 if (portchange
& USB_PORT_STAT_C_RESET
) {
484 debug("port %d reset change\n", i
+ 1);
485 usb_clear_port_feature(dev
, i
+ 1, USB_PORT_FEAT_C_RESET
);
489 * We're done with this device, so let's remove this device from
492 list_del(&usb_scan
->list
);
498 static int usb_device_list_scan(void)
500 struct usb_device_scan
*usb_scan
;
501 struct usb_device_scan
*tmp
;
505 /* Only run this loop once for each controller */
512 /* We're done, once the list is empty again */
513 if (list_empty(&usb_scan_list
))
516 list_for_each_entry_safe(usb_scan
, tmp
, &usb_scan_list
, list
) {
520 ret
= usb_scan_port(usb_scan
);
528 * This USB controller has finished scanning all its connected
529 * USB devices. Set "running" back to 0, so that other USB controllers
530 * will scan their devices too.
537 static int usb_hub_configure(struct usb_device
*dev
)
540 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer
, USB_BUFSIZ
);
541 unsigned char *bitmap
;
542 short hubCharacteristics
;
543 struct usb_hub_descriptor
*descriptor
;
544 struct usb_hub_device
*hub
;
545 __maybe_unused
struct usb_hub_status
*hubsts
;
548 /* "allocate" Hub device */
549 hub
= usb_hub_allocate();
553 /* Get the the hub descriptor */
554 ret
= usb_get_hub_descriptor(dev
, buffer
, 4);
556 debug("usb_hub_configure: failed to get hub " \
557 "descriptor, giving up %lX\n", dev
->status
);
560 descriptor
= (struct usb_hub_descriptor
*)buffer
;
562 length
= min_t(int, descriptor
->bLength
,
563 sizeof(struct usb_hub_descriptor
));
565 ret
= usb_get_hub_descriptor(dev
, buffer
, length
);
567 debug("usb_hub_configure: failed to get hub " \
568 "descriptor 2nd giving up %lX\n", dev
->status
);
571 memcpy((unsigned char *)&hub
->desc
, buffer
, length
);
572 /* adjust 16bit values */
573 put_unaligned(le16_to_cpu(get_unaligned(
574 &descriptor
->wHubCharacteristics
)),
575 &hub
->desc
.wHubCharacteristics
);
577 bitmap
= (unsigned char *)&hub
->desc
.DeviceRemovable
[0];
578 /* devices not removable by default */
579 memset(bitmap
, 0xff, (USB_MAXCHILDREN
+1+7)/8);
580 bitmap
= (unsigned char *)&hub
->desc
.PortPowerCtrlMask
[0];
581 memset(bitmap
, 0xff, (USB_MAXCHILDREN
+1+7)/8); /* PowerMask = 1B */
583 for (i
= 0; i
< ((hub
->desc
.bNbrPorts
+ 1 + 7)/8); i
++)
584 hub
->desc
.DeviceRemovable
[i
] = descriptor
->DeviceRemovable
[i
];
586 for (i
= 0; i
< ((hub
->desc
.bNbrPorts
+ 1 + 7)/8); i
++)
587 hub
->desc
.PortPowerCtrlMask
[i
] = descriptor
->PortPowerCtrlMask
[i
];
589 dev
->maxchild
= descriptor
->bNbrPorts
;
590 debug("%d ports detected\n", dev
->maxchild
);
592 hubCharacteristics
= get_unaligned(&hub
->desc
.wHubCharacteristics
);
593 switch (hubCharacteristics
& HUB_CHAR_LPSM
) {
595 debug("ganged power switching\n");
598 debug("individual port power switching\n");
602 debug("unknown reserved power switching mode\n");
606 if (hubCharacteristics
& HUB_CHAR_COMPOUND
)
607 debug("part of a compound device\n");
609 debug("standalone hub\n");
611 switch (hubCharacteristics
& HUB_CHAR_OCPM
) {
613 debug("global over-current protection\n");
616 debug("individual port over-current protection\n");
620 debug("no over-current protection\n");
624 debug("power on to power good time: %dms\n",
625 descriptor
->bPwrOn2PwrGood
* 2);
626 debug("hub controller current requirement: %dmA\n",
627 descriptor
->bHubContrCurrent
);
629 for (i
= 0; i
< dev
->maxchild
; i
++)
630 debug("port %d is%s removable\n", i
+ 1,
631 hub
->desc
.DeviceRemovable
[(i
+ 1) / 8] & \
632 (1 << ((i
+ 1) % 8)) ? " not" : "");
634 if (sizeof(struct usb_hub_status
) > USB_BUFSIZ
) {
635 debug("usb_hub_configure: failed to get Status - " \
636 "too long: %d\n", descriptor
->bLength
);
640 ret
= usb_get_hub_status(dev
, buffer
);
642 debug("usb_hub_configure: failed to get Status %lX\n",
648 hubsts
= (struct usb_hub_status
*)buffer
;
651 debug("get_hub_status returned status %X, change %X\n",
652 le16_to_cpu(hubsts
->wHubStatus
),
653 le16_to_cpu(hubsts
->wHubChange
));
654 debug("local power source is %s\n",
655 (le16_to_cpu(hubsts
->wHubStatus
) & HUB_STATUS_LOCAL_POWER
) ? \
656 "lost (inactive)" : "good");
657 debug("%sover-current condition exists\n",
658 (le16_to_cpu(hubsts
->wHubStatus
) & HUB_STATUS_OVERCURRENT
) ? \
660 usb_hub_power_on(hub
);
663 * Reset any devices that may be in a bad state when applying
664 * the power. This is a __weak function. Resetting of the devices
665 * should occur in the board file of the device.
667 for (i
= 0; i
< dev
->maxchild
; i
++)
668 usb_hub_reset_devices(i
+ 1);
671 * Only add the connected USB devices, including potential hubs,
672 * to a scanning list. This list will get scanned and devices that
673 * are detected (either via port connected or via port timeout)
674 * will get removed from this list. Scanning of the devices on this
675 * list will continue until all devices are removed.
677 for (i
= 0; i
< dev
->maxchild
; i
++) {
678 struct usb_device_scan
*usb_scan
;
680 usb_scan
= calloc(1, sizeof(*usb_scan
));
682 printf("Can't allocate memory for USB device!\n");
688 list_add_tail(&usb_scan
->list
, &usb_scan_list
);
692 * And now call the scanning code which loops over the generated list
694 ret
= usb_device_list_scan();
699 static int usb_hub_check(struct usb_device
*dev
, int ifnum
)
701 struct usb_interface
*iface
;
702 struct usb_endpoint_descriptor
*ep
= NULL
;
704 iface
= &dev
->config
.if_desc
[ifnum
];
706 if (iface
->desc
.bInterfaceClass
!= USB_CLASS_HUB
)
708 /* Some hubs have a subclass of 1, which AFAICT according to the */
709 /* specs is not defined, but it works */
710 if ((iface
->desc
.bInterfaceSubClass
!= 0) &&
711 (iface
->desc
.bInterfaceSubClass
!= 1))
713 /* Multiple endpoints? What kind of mutant ninja-hub is this? */
714 if (iface
->desc
.bNumEndpoints
!= 1)
716 ep
= &iface
->ep_desc
[0];
717 /* Output endpoint? Curiousier and curiousier.. */
718 if (!(ep
->bEndpointAddress
& USB_DIR_IN
))
720 /* If it's not an interrupt endpoint, we'd better punt! */
721 if ((ep
->bmAttributes
& 3) != 3)
724 debug("USB hub found\n");
728 debug("USB hub not found: bInterfaceClass=%d, bInterfaceSubClass=%d, bNumEndpoints=%d\n",
729 iface
->desc
.bInterfaceClass
, iface
->desc
.bInterfaceSubClass
,
730 iface
->desc
.bNumEndpoints
);
732 debug(" bEndpointAddress=%#x, bmAttributes=%d",
733 ep
->bEndpointAddress
, ep
->bmAttributes
);
739 int usb_hub_probe(struct usb_device
*dev
, int ifnum
)
743 ret
= usb_hub_check(dev
, ifnum
);
746 ret
= usb_hub_configure(dev
);
751 int usb_hub_scan(struct udevice
*hub
)
753 struct usb_device
*udev
= dev_get_parent_priv(hub
);
755 return usb_hub_configure(udev
);
758 static int usb_hub_post_bind(struct udevice
*dev
)
760 /* Scan the bus for devices */
761 return dm_scan_fdt_node(dev
, gd
->fdt_blob
, dev
->of_offset
, false);
764 static int usb_hub_post_probe(struct udevice
*dev
)
766 debug("%s\n", __func__
);
767 return usb_hub_scan(dev
);
770 static const struct udevice_id usb_hub_ids
[] = {
771 { .compatible
= "usb-hub" },
775 U_BOOT_DRIVER(usb_generic_hub
) = {
777 .id
= UCLASS_USB_HUB
,
778 .of_match
= usb_hub_ids
,
779 .flags
= DM_FLAG_ALLOC_PRIV_DMA
,
782 UCLASS_DRIVER(usb_hub
) = {
783 .id
= UCLASS_USB_HUB
,
785 .post_bind
= usb_hub_post_bind
,
786 .post_probe
= usb_hub_post_probe
,
787 .child_pre_probe
= usb_child_pre_probe
,
788 .per_child_auto_alloc_size
= sizeof(struct usb_device
),
789 .per_child_platdata_auto_alloc_size
= sizeof(struct usb_dev_platdata
),
792 static const struct usb_device_id hub_id_table
[] = {
794 .match_flags
= USB_DEVICE_ID_MATCH_DEV_CLASS
,
795 .bDeviceClass
= USB_CLASS_HUB
797 { } /* Terminating entry */
800 U_BOOT_USB_DEVICE(usb_generic_hub
, hub_id_table
);