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git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/dfu.c
2 * cmd_dfu.c -- dfu command
5 * Lukasz Majewski <l.majewski@majess.pl>
7 * Copyright (C) 2012 Samsung Electronics
8 * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
9 * Lukasz Majewski <l.majewski@samsung.com>
11 * SPDX-License-Identifier: GPL-2.0+
22 static int do_dfu(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
24 bool dfu_reset
= false;
29 char *usb_controller
= argv
[1];
30 char *interface
= argv
[2];
31 char *devstring
= argv
[3];
34 #ifdef CONFIG_DFU_TFTP
35 unsigned long addr
= 0;
36 if (!strcmp(argv
[1], "tftp")) {
38 addr
= simple_strtoul(argv
[4], NULL
, 0);
40 return update_tftp(addr
, interface
, devstring
);
44 ret
= dfu_init_env_entities(interface
, devstring
);
48 ret
= CMD_RET_SUCCESS
;
49 if (argc
> 4 && strcmp(argv
[4], "list") == 0) {
54 int controller_index
= simple_strtoul(usb_controller
, NULL
, 0);
55 board_usb_init(controller_index
, USB_INIT_DEVICE
);
57 g_dnl_register("usb_dnl_dfu");
61 * Check if USB bus reset is performed after detach,
62 * which indicates that -R switch has been passed to
63 * dfu-util. In this case reboot the device
65 if (dfu_usb_get_reset()) {
71 * This extra number of usb_gadget_handle_interrupts()
72 * calls is necessary to assure correct transmission
73 * completion with dfu-util
82 if (dfu_get_defer_flush()) {
84 * Call to usb_gadget_handle_interrupts() is necessary
85 * to act on ZLP OUT transaction from HOST PC after
86 * transmitting the whole file.
88 * If this ZLP OUT packet is NAK'ed, the HOST libusb
89 * function fails after timeout (by default it is set to
90 * 5 seconds). In such situation the dfu-util program
91 * exits with error message.
93 usb_gadget_handle_interrupts(controller_index
);
94 ret
= dfu_flush(dfu_get_defer_flush(), NULL
, 0, 0);
95 dfu_set_defer_flush(NULL
);
97 error("Deferred dfu_flush() failed!");
103 usb_gadget_handle_interrupts(controller_index
);
107 board_usb_cleanup(controller_index
, USB_INIT_DEVICE
);
112 run_command("reset", 0);
114 g_dnl_clear_detach();
119 U_BOOT_CMD(dfu
, CONFIG_SYS_MAXARGS
, 1, do_dfu
,
120 "Device Firmware Upgrade",
121 "<USB_controller> <interface> <dev> [list]\n"
122 " - device firmware upgrade via <USB_controller>\n"
123 " on device <dev>, attached to interface\n"
125 " [list] - list available alt settings\n"
126 #ifdef CONFIG_DFU_TFTP
127 "dfu tftp <interface> <dev> [<addr>]\n"
128 " - device firmware upgrade via TFTP\n"
129 " on device <dev>, attached to interface\n"
131 " [<addr>] - address where FIT image has been stored\n"