diff options
Diffstat (limited to 'drivers/usb/host/usb_bootdev.c')
-rw-r--r-- | drivers/usb/host/usb_bootdev.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/usb/host/usb_bootdev.c b/drivers/usb/host/usb_bootdev.c new file mode 100644 index 00000000000..362b46dc466 --- /dev/null +++ b/drivers/usb/host/usb_bootdev.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Bootdev for USB + * + * Copyright 2021 Google LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#include <bootdev.h> +#include <dm.h> +#include <usb.h> + +static int usb_bootdev_bind(struct udevice *dev) +{ + struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev); + + ucp->prio = BOOTDEVP_5_SCAN_SLOW; + + return 0; +} + +static int usb_bootdev_hunt(struct bootdev_hunter *info, bool show) +{ + if (usb_started) + return 0; + + return usb_init(); +} + +struct bootdev_ops usb_bootdev_ops = { +}; + +static const struct udevice_id usb_bootdev_ids[] = { + { .compatible = "u-boot,bootdev-usb" }, + { } +}; + +U_BOOT_DRIVER(usb_bootdev) = { + .name = "usb_bootdev", + .id = UCLASS_BOOTDEV, + .ops = &usb_bootdev_ops, + .bind = usb_bootdev_bind, + .of_match = usb_bootdev_ids, +}; + +BOOTDEV_HUNTER(usb_bootdev_hunter) = { + .prio = BOOTDEVP_5_SCAN_SLOW, + .uclass = UCLASS_USB, + .hunt = usb_bootdev_hunt, + .drv = DM_DRIVER_REF(usb_bootdev), +}; |