sunxi: mmc: group non-DM specific functions
[platform/kernel/u-boot.git] / drivers / mmc / mmc_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 <dm.h>
12 #include <mmc.h>
13
14 static int mmc_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
15                             struct bootflow *bflow)
16 {
17         struct udevice *mmc_dev = dev_get_parent(dev);
18         struct udevice *blk;
19         int ret;
20
21         ret = mmc_get_blk(mmc_dev, &blk);
22         /*
23          * If there is no media, indicate that no more partitions should be
24          * checked
25          */
26         if (ret == -EOPNOTSUPP)
27                 ret = -ESHUTDOWN;
28         if (ret)
29                 return log_msg_ret("blk", ret);
30         assert(blk);
31         ret = bootdev_find_in_blk(dev, blk, iter, bflow);
32         if (ret)
33                 return log_msg_ret("find", ret);
34
35         return 0;
36 }
37
38 static int mmc_bootdev_bind(struct udevice *dev)
39 {
40         struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
41
42         ucp->prio = BOOTDEVP_0_INTERNAL_FAST;
43
44         return 0;
45 }
46
47 struct bootdev_ops mmc_bootdev_ops = {
48         .get_bootflow   = mmc_get_bootflow,
49 };
50
51 static const struct udevice_id mmc_bootdev_ids[] = {
52         { .compatible = "u-boot,bootdev-mmc" },
53         { }
54 };
55
56 U_BOOT_DRIVER(mmc_bootdev) = {
57         .name           = "mmc_bootdev",
58         .id             = UCLASS_BOOTDEV,
59         .ops            = &mmc_bootdev_ops,
60         .bind           = mmc_bootdev_bind,
61         .of_match       = mmc_bootdev_ids,
62 };