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124a06d7 TK |
1 | /* |
2 | * Copyright (C) 2012 Boundary Devices Inc. | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | #include <common.h> | |
23 | #include <asm/errno.h> | |
24 | #include <asm/io.h> | |
25 | #include <asm/imx-common/boot_mode.h> | |
26 | #include <malloc.h> | |
6c7c946c | 27 | #include <command.h> |
124a06d7 TK |
28 | |
29 | static const struct boot_mode *modes[2]; | |
30 | ||
31 | static const struct boot_mode *search_modes(char *arg) | |
32 | { | |
33 | int i; | |
34 | ||
35 | for (i = 0; i < ARRAY_SIZE(modes); i++) { | |
36 | const struct boot_mode *p = modes[i]; | |
37 | if (p) { | |
38 | while (p->name) { | |
39 | if (!strcmp(p->name, arg)) | |
40 | return p; | |
41 | p++; | |
42 | } | |
43 | } | |
44 | } | |
45 | return NULL; | |
46 | } | |
47 | ||
48 | static int create_usage(char *dest) | |
49 | { | |
50 | int i; | |
51 | int size = 0; | |
52 | ||
53 | for (i = 0; i < ARRAY_SIZE(modes); i++) { | |
54 | const struct boot_mode *p = modes[i]; | |
55 | if (p) { | |
56 | while (p->name) { | |
57 | int len = strlen(p->name); | |
58 | if (dest) { | |
59 | memcpy(dest, p->name, len); | |
60 | dest += len; | |
61 | *dest++ = '|'; | |
62 | } | |
63 | size += len + 1; | |
64 | p++; | |
65 | } | |
66 | } | |
67 | } | |
68 | if (dest) | |
69 | memcpy(dest - 1, " [noreset]", 11); /* include trailing 0 */ | |
70 | size += 10; | |
71 | return size; | |
72 | } | |
73 | ||
74 | static int do_boot_mode(cmd_tbl_t *cmdtp, int flag, int argc, | |
75 | char * const argv[]) | |
76 | { | |
77 | const struct boot_mode *p; | |
78 | int reset_requested = 1; | |
79 | ||
80 | if (argc < 2) | |
81 | return CMD_RET_USAGE; | |
82 | p = search_modes(argv[1]); | |
83 | if (!p) | |
84 | return CMD_RET_USAGE; | |
85 | if (argc == 3) { | |
86 | if (strcmp(argv[2], "noreset")) | |
87 | return CMD_RET_USAGE; | |
88 | reset_requested = 0; | |
89 | } | |
90 | ||
91 | boot_mode_apply(p->cfg_val); | |
92 | if (reset_requested && p->cfg_val) | |
93 | do_reset(NULL, 0, 0, NULL); | |
94 | return 0; | |
95 | } | |
96 | ||
97 | U_BOOT_CMD( | |
98 | bmode, 3, 0, do_boot_mode, | |
99 | NULL, | |
100 | ""); | |
101 | ||
102 | void add_board_boot_modes(const struct boot_mode *p) | |
103 | { | |
104 | int size; | |
105 | char *dest; | |
106 | ||
6c7c946c MV |
107 | cmd_tbl_t *entry = ll_entry_get(cmd_tbl_t, bmode, cmd); |
108 | ||
109 | if (entry->usage) { | |
110 | free(entry->usage); | |
111 | entry->usage = NULL; | |
124a06d7 TK |
112 | } |
113 | ||
114 | modes[0] = p; | |
115 | modes[1] = soc_boot_modes; | |
116 | size = create_usage(NULL); | |
117 | dest = malloc(size); | |
118 | if (dest) { | |
119 | create_usage(dest); | |
6c7c946c | 120 | entry->usage = dest; |
124a06d7 TK |
121 | } |
122 | } |