a080b98981
Some boot methods don't act on a single bootdev but instead do their own thing. An example is EFI bootmgr which scan various devices using its own logic. Add a bootdev to handle this. Signed-off-by: Simon Glass <sjg@chromium.org>
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Bootdevice for system, used for bootmeths not tied to any partition device
|
|
*
|
|
* Copyright 2021 Google LLC
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_BOOTSTD
|
|
|
|
#include <common.h>
|
|
#include <bootdev.h>
|
|
#include <bootflow.h>
|
|
#include <bootmeth.h>
|
|
#include <command.h>
|
|
#include <distro.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <net.h>
|
|
|
|
static int system_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
|
|
struct bootflow *bflow)
|
|
{
|
|
int ret;
|
|
|
|
/* Must be an bootstd device */
|
|
ret = bootflow_iter_uses_system(iter);
|
|
if (ret)
|
|
return log_msg_ret("net", ret);
|
|
|
|
ret = bootmeth_check(bflow->method, iter);
|
|
if (ret)
|
|
return log_msg_ret("check", ret);
|
|
|
|
ret = bootmeth_read_bootflow(bflow->method, bflow);
|
|
if (ret)
|
|
return log_msg_ret("method", ret);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int system_bootdev_bind(struct udevice *dev)
|
|
{
|
|
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
|
|
|
|
ucp->prio = BOOTDEVP_6_SYSTEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct bootdev_ops system_bootdev_ops = {
|
|
.get_bootflow = system_get_bootflow,
|
|
};
|
|
|
|
static const struct udevice_id system_bootdev_ids[] = {
|
|
{ .compatible = "u-boot,bootdev-system" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(system_bootdev) = {
|
|
.name = "system_bootdev",
|
|
.id = UCLASS_BOOTDEV,
|
|
.ops = &system_bootdev_ops,
|
|
.bind = system_bootdev_bind,
|
|
.of_match = system_bootdev_ids,
|
|
};
|