1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2016
4 * Texas Instruments, <www.ti.com>
5 *
6 * Ravi B <ravibabu@ti.com>
7 */
8 #include <common.h>
9 #include <spl.h>
10 #include <linux/compiler.h>
11 #include <errno.h>
12 #include <watchdog.h>
13 #include <console.h>
14 #include <g_dnl.h>
15 #include <usb.h>
16 #include <dfu.h>
17 #include <environment.h>
18
run_dfu(int usb_index,char * interface,char * devstring)19 static int run_dfu(int usb_index, char *interface, char *devstring)
20 {
21 int ret;
22
23 ret = dfu_init_env_entities(interface, devstring);
24 if (ret) {
25 dfu_free_entities();
26 goto exit;
27 }
28
29 run_usb_dnl_gadget(usb_index, "usb_dnl_dfu");
30 exit:
31 dfu_free_entities();
32 return ret;
33 }
34
spl_dfu_cmd(int usbctrl,char * dfu_alt_info,char * interface,char * devstr)35 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr)
36 {
37 char *str_env;
38 int ret;
39
40 /* set default environment */
41 set_default_env(0);
42 str_env = env_get(dfu_alt_info);
43 if (!str_env) {
44 pr_err("\"dfu_alt_info\" env variable not defined!\n");
45 return -EINVAL;
46 }
47
48 ret = env_set("dfu_alt_info", str_env);
49 if (ret) {
50 pr_err("unable to set env variable \"dfu_alt_info\"!\n");
51 return -EINVAL;
52 }
53
54 /* invoke dfu command */
55 return run_dfu(usbctrl, interface, devstr);
56 }
57