| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2014 |
| * Texas Instruments, <www.ti.com> |
| * |
| * Dan Murphy <dmurphy@ti.com> |
| * |
| * Derived work from spl_mmc.c |
| */ |
| |
| #include <common.h> |
| #include <log.h> |
| #include <spl.h> |
| #include <asm/u-boot.h> |
| #include <errno.h> |
| #include <usb.h> |
| #include <fat.h> |
| |
| static int usb_stor_curr_dev = -1; /* current device */ |
| |
| int spl_usb_load(struct spl_image_info *spl_image, |
| struct spl_boot_device *bootdev, int partition, |
| const char *filename) |
| { |
| int err = 0; |
| struct blk_desc *stor_dev; |
| static bool usb_init_pending = true; |
| |
| if (usb_init_pending) { |
| usb_stop(); |
| err = usb_init(); |
| usb_init_pending = false; |
| } |
| |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| printf("%s: usb init failed: err - %d\n", __func__, err); |
| #endif |
| return err; |
| } |
| |
| /* try to recognize storage devices immediately */ |
| usb_stor_curr_dev = usb_stor_scan(1); |
| stor_dev = blk_get_devnum_by_type(IF_TYPE_USB, usb_stor_curr_dev); |
| if (!stor_dev) |
| return -ENODEV; |
| |
| debug("boot mode - FAT\n"); |
| |
| #if CONFIG_IS_ENABLED(OS_BOOT) |
| if (spl_start_uboot() || |
| spl_load_image_fat_os(spl_image, bootdev, stor_dev, partition)) |
| #endif |
| { |
| err = spl_load_image_fat(spl_image, bootdev, stor_dev, partition, filename); |
| } |
| |
| if (err) { |
| puts("Error loading from USB device\n"); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int spl_usb_load_image(struct spl_image_info *spl_image, |
| struct spl_boot_device *bootdev) |
| { |
| return spl_usb_load(spl_image, bootdev, |
| CONFIG_SYS_USB_FAT_BOOT_PARTITION, |
| CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); |
| } |
| SPL_LOAD_IMAGE_METHOD("USB", 0, BOOT_DEVICE_USB, spl_usb_load_image); |