u-boot/boot/bootmeth_sandbox.c
Simon Glass 126947b773 bootstd: Add a sandbox bootmeth driver
Add a bootmeth driver for sandbox, used for testing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00

70 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Bootmethod for sandbox testing
*
* 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 <dm.h>
static int sandbox_check(struct udevice *dev, struct bootflow_iter *iter)
{
return 0;
}
static int sandbox_read_bootflow(struct udevice *dev, struct bootflow *bflow)
{
/* pretend we are ready */
bflow->state = BOOTFLOWST_READY;
return 0;
}
static int sandbox_read_file(struct udevice *dev, struct bootflow *bflow,
const char *file_path, ulong addr, ulong *sizep)
{
return -ENOSYS;
}
static int sandbox_boot(struct udevice *dev, struct bootflow *bflow)
{
/* always fail: see bootflow_iter_disable() */
return -ENOTSUPP;
}
static int sandbox_bootmeth_bind(struct udevice *dev)
{
struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev);
plat->desc = "Sandbox boot for testing";
return 0;
}
static struct bootmeth_ops sandbox_bootmeth_ops = {
.check = sandbox_check,
.read_bootflow = sandbox_read_bootflow,
.read_file = sandbox_read_file,
.boot = sandbox_boot,
};
static const struct udevice_id sandbox_bootmeth_ids[] = {
{ .compatible = "u-boot,sandbox-syslinux" },
{ }
};
U_BOOT_DRIVER(bootmeth_sandbox) = {
.name = "bootmeth_sandbox",
.id = UCLASS_BOOTMETH,
.of_match = sandbox_bootmeth_ids,
.ops = &sandbox_bootmeth_ops,
.bind = sandbox_bootmeth_bind,
};