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// 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);
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