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// SPDX-License-Identifier: GPL-2.0+
/*
* Bootdevice for USB
*
* Copyright 2021 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <bootdev.h>
#include <dm.h>
#include <usb.h>
static int usb_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
struct bootflow *bflow)
{
struct udevice *blk;
int ret;
ret = bootdev_get_sibling_blk(dev, &blk);
/*
* If there is no media, indicate that no more partitions should be
* checked
*/
if (ret == -EOPNOTSUPP)
ret = -ESHUTDOWN;
if (ret)
return log_msg_ret("blk", ret);
assert(blk);
ret = bootdev_find_in_blk(dev, blk, iter, bflow);
if (ret)
return log_msg_ret("find", ret);
return 0;
}
static int usb_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_3_SCAN_SLOW;
return 0;
}
struct bootdev_ops usb_bootdev_ops = {
.get_bootflow = usb_get_bootflow,
};
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,
};
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