fs/sandbox/host_bootdev.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Bootdevice for MMC
   4  *
   5  * Copyright 2021 Google LLC
   6  * Written by Simon Glass <sjg@chromium.org>
   7  */
   8
   9 #include <common.h>
  10 #include <bootdev.h>
  11 #include <bootflow.h>
  12 #include <bootmeth.h>
  13 #include <dm.h>
  14 #include <fs.h>
  15
  16 static int host_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
  17                              struct bootflow *bflow)
  18 {
  19         int ret;
  20
  21         if (iter->part)
  22                 return log_msg_ret("max", -ESHUTDOWN);
  23
  24         bflow->name = strdup(dev->name);
  25         if (!bflow->name)
  26                 return log_msg_ret("name", -ENOMEM);
  27
  28         ret = bootmeth_check(bflow->method, iter);
  29         if (ret)
  30                 return log_msg_ret("check", ret);
  31
  32         bflow->state = BOOTFLOWST_MEDIA;
  33         bflow->fs_type = FS_TYPE_SANDBOX;
  34
  35         ret = bootmeth_read_bootflow(bflow->method, bflow);
  36         if (ret)
  37                 return log_msg_ret("method", ret);
  38
  39         return 0;
  40 }
  41
  42 struct bootdev_ops host_bootdev_ops = {
  43         .get_bootflow   = host_get_bootflow,
  44 };
  45
  46 static const struct udevice_id host_bootdev_ids[] = {
  47         { .compatible = "sandbox,bootdev-host" },
  48         { }
  49 };
  50
  51 U_BOOT_DRIVER(host_bootdev) = {
  52         .name           = "host_bootdev",
  53         .id             = UCLASS_BOOTDEV,
  54         .ops            = &host_bootdev_ops,
  55         .of_match       = host_bootdev_ids,
  56 };