spl: Convert spl_spi_load_image() to use linker list
[oweals/u-boot.git] / common / spl / spl_usb.c
1 /*
2  * (C) Copyright 2014
3  * Texas Instruments, <www.ti.com>
4  *
5  * Dan Murphy <dmurphy@ti.com>
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  *
9  * Derived work from spl_mmc.c
10  */
11
12 #include <common.h>
13 #include <spl.h>
14 #include <asm/u-boot.h>
15 #include <errno.h>
16 #include <usb.h>
17 #include <fat.h>
18
19 DECLARE_GLOBAL_DATA_PTR;
20
21 #ifdef CONFIG_USB_STORAGE
22 static int usb_stor_curr_dev = -1; /* current device */
23 #endif
24
25 static int spl_usb_load_image(struct spl_boot_device *bootdev)
26 {
27         int err;
28         struct blk_desc *stor_dev;
29
30         usb_stop();
31         err = usb_init();
32         if (err) {
33 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
34                 printf("%s: usb init failed: err - %d\n", __func__, err);
35 #endif
36                 return err;
37         }
38
39 #ifdef CONFIG_USB_STORAGE
40         /* try to recognize storage devices immediately */
41         usb_stor_curr_dev = usb_stor_scan(1);
42         stor_dev = blk_get_devnum_by_type(IF_TYPE_USB, usb_stor_curr_dev);
43         if (!stor_dev)
44                 return -ENODEV;
45 #endif
46
47         debug("boot mode - FAT\n");
48
49 #ifdef CONFIG_SPL_OS_BOOT
50                 if (spl_start_uboot() || spl_load_image_fat_os(stor_dev,
51                                                                 CONFIG_SYS_USB_FAT_BOOT_PARTITION))
52 #endif
53                 err = spl_load_image_fat(stor_dev,
54                                 CONFIG_SYS_USB_FAT_BOOT_PARTITION,
55                                 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
56
57         if (err) {
58                 puts("Error loading from USB device\n");
59                 return err;
60         }
61
62         return 0;
63 }
64 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_USB, spl_usb_load_image);