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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2
3#include <command.h>
4#include <bootcount.h>
5
6static int do_bootcount_print(struct cmd_tbl *cmdtp, int flag, int argc,
7 char *const argv[])
8{
9 printf("%lu\n", bootcount_load());
10 return CMD_RET_SUCCESS;
11}
12
13static int do_bootcount_reset(struct cmd_tbl *cmdtp, int flag, int argc,
14 char *const argv[])
15{
16 /*
17 * note that we're explicitly not resetting the environment
18 * variable, so you still have the old bootcounter available
19 */
20 bootcount_store(0);
21 return CMD_RET_SUCCESS;
22}
23
24static struct cmd_tbl bootcount_sub[] = {
25 U_BOOT_CMD_MKENT(print, 1, 1, do_bootcount_print, "", ""),
26 U_BOOT_CMD_MKENT(reset, 1, 1, do_bootcount_reset, "", ""),
27};
28
29static int do_bootcount(struct cmd_tbl *cmdtp, int flag, int argc,
30 char *const argv[])
31{
32 struct cmd_tbl *cp;
33
34 if (argc < 2)
35 return CMD_RET_USAGE;
36
37 /* drop initial "bootcount" arg */
38 argc--;
39 argv++;
40
41 cp = find_cmd_tbl(argv[0], bootcount_sub, ARRAY_SIZE(bootcount_sub));
42 if (cp)
43 return cp->cmd(cmdtp, flag, argc, argv);
44
45 return CMD_RET_USAGE;
46}
47
48U_BOOT_LONGHELP(bootcount,
49 "print - print current bootcounter\n"
50 "reset - reset the bootcounter");
51
52U_BOOT_CMD(bootcount, 2, 1, do_bootcount,
53 "bootcount",
54 bootcount_help_text
55);