efi_loader: remove superfluous check in efi_setup_loaded_image()
[oweals/u-boot.git] / common / spl / spl_usb.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2014
4  * Texas Instruments, <www.ti.com>
5  *
6  * Dan Murphy <dmurphy@ti.com>
7  *
8  * Derived work from spl_mmc.c
9  */
10
11 #include <common.h>
12 #include <spl.h>
13 #include <asm/u-boot.h>
14 #include <errno.h>
15 #include <usb.h>
16 #include <fat.h>
17
18 static int usb_stor_curr_dev = -1; /* current device */
19
20 static int spl_usb_load_image(struct spl_image_info *spl_image,
21                               struct spl_boot_device *bootdev)
22 {
23         int err;
24         struct blk_desc *stor_dev;
25
26         usb_stop();
27         err = usb_init();
28         if (err) {
29 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
30                 printf("%s: usb init failed: err - %d\n", __func__, err);
31 #endif
32                 return err;
33         }
34
35         /* try to recognize storage devices immediately */
36         usb_stor_curr_dev = usb_stor_scan(1);
37         stor_dev = blk_get_devnum_by_type(IF_TYPE_USB, usb_stor_curr_dev);
38         if (!stor_dev)
39                 return -ENODEV;
40
41         debug("boot mode - FAT\n");
42
43 #ifdef CONFIG_SPL_OS_BOOT
44         if (spl_start_uboot() ||
45             spl_load_image_fat_os(spl_image, stor_dev,
46                                   CONFIG_SYS_USB_FAT_BOOT_PARTITION))
47 #endif
48         {
49                 err = spl_load_image_fat(spl_image, stor_dev,
50                                         CONFIG_SYS_USB_FAT_BOOT_PARTITION,
51                                         CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
52         }
53
54         if (err) {
55                 puts("Error loading from USB device\n");
56                 return err;
57         }
58
59         return 0;
60 }
61 SPL_LOAD_IMAGE_METHOD("USB", 0, BOOT_DEVICE_USB, spl_usb_load_image);