1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Bootdev for USB
4 *
5 * Copyright 2021 Google LLC
6 * Written by Simon Glass <sjg@chromium.org>
7 */
8
9 #include <bootdev.h>
10 #include <dm.h>
11 #include <usb.h>
12
usb_bootdev_bind(struct udevice * dev)13 static int usb_bootdev_bind(struct udevice *dev)
14 {
15 struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
16
17 ucp->prio = BOOTDEVP_5_SCAN_SLOW;
18
19 return 0;
20 }
21
usb_bootdev_hunt(struct bootdev_hunter * info,bool show)22 static int usb_bootdev_hunt(struct bootdev_hunter *info, bool show)
23 {
24 if (usb_started)
25 return 0;
26
27 return usb_init();
28 }
29
30 struct bootdev_ops usb_bootdev_ops = {
31 };
32
33 static const struct udevice_id usb_bootdev_ids[] = {
34 { .compatible = "u-boot,bootdev-usb" },
35 { }
36 };
37
38 U_BOOT_DRIVER(usb_bootdev) = {
39 .name = "usb_bootdev",
40 .id = UCLASS_BOOTDEV,
41 .ops = &usb_bootdev_ops,
42 .bind = usb_bootdev_bind,
43 .of_match = usb_bootdev_ids,
44 };
45
46 BOOTDEV_HUNTER(usb_bootdev_hunter) = {
47 .prio = BOOTDEVP_5_SCAN_SLOW,
48 .uclass = UCLASS_USB,
49 .hunt = usb_bootdev_hunt,
50 .drv = DM_DRIVER_REF(usb_bootdev),
51 };
52