global: Move remaining CONFIG_SYS_* to CFG_SYS_*
[platform/kernel/u-boot.git] / arch / arm / mach-imx / cmd_bmode.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2012 Boundary Devices Inc.
4  */
5 #include <common.h>
6 #include <linux/errno.h>
7 #include <asm/io.h>
8 #include <asm/mach-imx/boot_mode.h>
9 #include <malloc.h>
10 #include <command.h>
11
12 static const struct boot_mode *modes[2];
13
14 static const struct boot_mode *search_modes(char *arg)
15 {
16         int i;
17
18         for (i = 0; i < ARRAY_SIZE(modes); i++) {
19                 const struct boot_mode *p = modes[i];
20                 if (p) {
21                         while (p->name) {
22                                 if (!strcmp(p->name, arg))
23                                         return p;
24                                 p++;
25                         }
26                 }
27         }
28         return NULL;
29 }
30
31 static int create_usage(char *dest)
32 {
33         int i;
34         int size = 0;
35
36         for (i = 0; i < ARRAY_SIZE(modes); i++) {
37                 const struct boot_mode *p = modes[i];
38                 if (p) {
39                         while (p->name) {
40                                 int len = strlen(p->name);
41                                 if (dest) {
42                                         memcpy(dest, p->name, len);
43                                         dest += len;
44                                         *dest++ = '|';
45                                 }
46                                 size += len + 1;
47                                 p++;
48                         }
49                 }
50         }
51         if (dest)
52                 memcpy(dest - 1, " [noreset]", 11);     /* include trailing 0 */
53         size += 10;
54
55         if (dest)
56                 memcpy(dest - 1, "\nbmode - getprisec", 19);
57         size += 18;
58
59         return size;
60 }
61
62 __weak int boot_mode_getprisec(void)
63 {
64         return 0;
65 }
66
67 static int do_boot_mode(struct cmd_tbl *cmdtp, int flag, int argc,
68                         char *const argv[])
69 {
70         const struct boot_mode *p;
71         int reset_requested = 1;
72
73         if (argc < 2)
74                 return CMD_RET_USAGE;
75         if (!strcmp(argv[1], "getprisec"))
76                 return boot_mode_getprisec();
77         p = search_modes(argv[1]);
78         if (!p)
79                 return CMD_RET_USAGE;
80         if (argc == 3) {
81                 if (strcmp(argv[2], "noreset"))
82                         return CMD_RET_USAGE;
83                 reset_requested = 0;
84         }
85
86         boot_mode_apply(p->cfg_val);
87         if (reset_requested && p->cfg_val)
88                 do_reset(NULL, 0, 0, NULL);
89         return 0;
90 }
91
92 U_BOOT_CMD(
93         bmode, 3, 0, do_boot_mode,
94         NULL,
95         "");
96
97 void add_board_boot_modes(const struct boot_mode *p)
98 {
99         int size;
100         char *dest;
101
102         struct cmd_tbl *entry = ll_entry_get(struct cmd_tbl, bmode, cmd);
103
104         if (entry->usage) {
105                 free(entry->usage);
106                 entry->usage = NULL;
107         }
108
109         modes[0] = p;
110         modes[1] = soc_boot_modes;
111         size = create_usage(NULL);
112         dest = malloc(size);
113         if (dest) {
114                 create_usage(dest);
115                 entry->usage = dest;
116         }
117 }