mirror of
https://github.com/brain-hackers/u-boot-brain
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8cffe5bd0d
Add SPL support to be able to detect a USB Mass Storage device connected to a USB host. Once a USB Mass storage device is detected the SPL will load the u-boot.img from a FAT partition to target address. Signed-off-by: Dan Murphy <dmurphy@ti.com>
59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* (C) Copyright 2014
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* Texas Instruments, <www.ti.com>
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*
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* Dan Murphy <dmurphy@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* Derived work from spl_mmc.c
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*/
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#include <common.h>
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#include <spl.h>
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#include <asm/u-boot.h>
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#include <usb.h>
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#include <fat.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_USB_STORAGE
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static int usb_stor_curr_dev = -1; /* current device */
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#endif
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void spl_usb_load_image(void)
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{
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int err;
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block_dev_desc_t *stor_dev;
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usb_stop();
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err = usb_init();
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if (err) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("%s: usb init failed: err - %d\n", __func__, err);
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#endif
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hang();
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}
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#ifdef CONFIG_USB_STORAGE
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/* try to recognize storage devices immediately */
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usb_stor_curr_dev = usb_stor_scan(1);
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stor_dev = usb_stor_get_dev(usb_stor_curr_dev);
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#endif
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debug("boot mode - FAT\n");
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#ifdef CONFIG_SPL_OS_BOOT
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if (spl_start_uboot() || spl_load_image_fat_os(stor_dev,
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CONFIG_SYS_USB_FAT_BOOT_PARTITION))
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#endif
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err = spl_load_image_fat(stor_dev,
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CONFIG_SYS_USB_FAT_BOOT_PARTITION,
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CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
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if (err) {
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puts("Error loading USB device\n");
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hang();
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}
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}
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