blob: 567a4505056a674343ff35d891f949a86c76988a [file] [log] [blame]
Dan Murphy8cffe5b2014-01-16 11:23:30 -06001/*
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>
Nikita Kiryanov36afd452015-11-08 17:11:49 +020015#include <errno.h>
Dan Murphy8cffe5b2014-01-16 11:23:30 -060016#include <usb.h>
17#include <fat.h>
18
19DECLARE_GLOBAL_DATA_PTR;
20
21#ifdef CONFIG_USB_STORAGE
22static int usb_stor_curr_dev = -1; /* current device */
23#endif
24
Simon Glass2a2ee2a2016-09-24 18:20:13 -060025static int spl_usb_load_image(struct spl_image_info *spl_image,
26 struct spl_boot_device *bootdev)
Dan Murphy8cffe5b2014-01-16 11:23:30 -060027{
28 int err;
Simon Glass4101f682016-02-29 15:25:34 -070029 struct blk_desc *stor_dev;
Dan Murphy8cffe5b2014-01-16 11:23:30 -060030
31 usb_stop();
32 err = usb_init();
33 if (err) {
34#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
35 printf("%s: usb init failed: err - %d\n", __func__, err);
36#endif
Nikita Kiryanov36afd452015-11-08 17:11:49 +020037 return err;
Dan Murphy8cffe5b2014-01-16 11:23:30 -060038 }
39
40#ifdef CONFIG_USB_STORAGE
41 /* try to recognize storage devices immediately */
42 usb_stor_curr_dev = usb_stor_scan(1);
Simon Glass57ebf672016-05-01 11:36:13 -060043 stor_dev = blk_get_devnum_by_type(IF_TYPE_USB, usb_stor_curr_dev);
Nikita Kiryanov36afd452015-11-08 17:11:49 +020044 if (!stor_dev)
45 return -ENODEV;
Dan Murphy8cffe5b2014-01-16 11:23:30 -060046#endif
47
48 debug("boot mode - FAT\n");
49
50#ifdef CONFIG_SPL_OS_BOOT
Simon Glass710e9ca2016-09-24 18:20:15 -060051 if (spl_start_uboot() ||
52 spl_load_image_fat_os(spl_image, stor_dev,
53 CONFIG_SYS_USB_FAT_BOOT_PARTITION))
Dan Murphy8cffe5b2014-01-16 11:23:30 -060054#endif
Simon Glass710e9ca2016-09-24 18:20:15 -060055 {
56 err = spl_load_image_fat(spl_image, stor_dev,
57 CONFIG_SYS_USB_FAT_BOOT_PARTITION,
58 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
59 }
Dan Murphy8cffe5b2014-01-16 11:23:30 -060060
Nikita Kiryanov36afd452015-11-08 17:11:49 +020061 if (err) {
62 puts("Error loading from USB device\n");
63 return err;
64 }
65
66 return 0;
Dan Murphy8cffe5b2014-01-16 11:23:30 -060067}
Simon Glassebc4ef62016-11-30 15:30:50 -070068SPL_LOAD_IMAGE_METHOD("USB", 0, BOOT_DEVICE_USB, spl_usb_load_image);