1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
5 * made from cmd_ext2, which was:
8 * esd gmbh <www.esd-electronics.com>
9 * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
11 * made from cmd_reiserfs by
13 * (C) Copyright 2003 - 2004
14 * Sysgo Real-Time Solutions, AG <www.elinos.com>
15 * Pavel Bartusek <pba@sysgo.com>
25 CMD_PART_INFO_START = 0,
30 static int do_part_uuid(int argc, char * const argv[])
33 struct blk_desc *dev_desc;
34 disk_partition_t info;
41 part = blk_get_device_part_str(argv[0], argv[1], &dev_desc, &info, 0);
46 env_set(argv[2], info.uuid);
48 printf("%s\n", info.uuid);
53 static int do_part_list(int argc, char * const argv[])
56 struct blk_desc *desc;
58 bool bootable = false;
65 for (i = 2; i < argc ; i++) {
66 if (argv[i][0] == '-') {
67 if (!strcmp(argv[i], "-bootable")) {
70 printf("Unknown option %s\n", argv[i]);
79 /* Loops should have been exited at the last argument, which
80 * as it contained the variable */
85 ret = blk_get_device_by_str(argv[0], argv[1], &desc);
91 char str[512] = { '\0', };
92 disk_partition_t info;
94 for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
96 int r = part_get_info(desc, p, &info);
101 if (bootable && !info.bootable)
104 sprintf(t, "%s%x", str[0] ? " " : "", p);
116 static int do_part_info(int argc, char * const argv[], enum cmd_part_info param)
118 struct blk_desc *desc;
119 disk_partition_t info;
120 char buf[512] = { 0 };
127 return CMD_RET_USAGE;
129 return CMD_RET_USAGE;
131 ret = blk_get_device_by_str(argv[0], argv[1], &desc);
135 part = simple_strtoul(argv[2], &endp, 0);
137 err = part_get_info(desc, part, &info);
141 part = part_get_info_by_name(desc, argv[2], &info);
147 case CMD_PART_INFO_START:
148 snprintf(buf, sizeof(buf), LBAF, info.start);
150 case CMD_PART_INFO_SIZE:
151 snprintf(buf, sizeof(buf), LBAF, info.size);
153 case CMD_PART_INFO_NUMBER:
154 snprintf(buf, sizeof(buf), "%d", part);
157 printf("** Unknown cmd_part_info value: %d\n", param);
162 env_set(argv[3], buf);
169 static int do_part_start(int argc, char * const argv[])
171 return do_part_info(argc, argv, CMD_PART_INFO_START);
174 static int do_part_size(int argc, char * const argv[])
176 return do_part_info(argc, argv, CMD_PART_INFO_SIZE);
179 static int do_part_number(int argc, char * const argv[])
181 return do_part_info(argc, argv, CMD_PART_INFO_NUMBER);
184 static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
187 return CMD_RET_USAGE;
189 if (!strcmp(argv[1], "uuid"))
190 return do_part_uuid(argc - 2, argv + 2);
191 else if (!strcmp(argv[1], "list"))
192 return do_part_list(argc - 2, argv + 2);
193 else if (!strcmp(argv[1], "start"))
194 return do_part_start(argc - 2, argv + 2);
195 else if (!strcmp(argv[1], "size"))
196 return do_part_size(argc - 2, argv + 2);
197 else if (!strcmp(argv[1], "number"))
198 return do_part_number(argc - 2, argv + 2);
200 return CMD_RET_USAGE;
204 part, CONFIG_SYS_MAXARGS, 1, do_part,
205 "disk partition related commands",
206 "uuid <interface> <dev>:<part>\n"
207 " - print partition UUID\n"
208 "part uuid <interface> <dev>:<part> <varname>\n"
209 " - set environment variable to partition UUID\n"
210 "part list <interface> <dev>\n"
211 " - print a device's partition table\n"
212 "part list <interface> <dev> [flags] <varname>\n"
213 " - set environment variable to the list of partitions\n"
214 " flags can be -bootable (list only bootable partitions)\n"
215 "part start <interface> <dev> <part> <varname>\n"
216 " - set environment variable to the start of the partition (in blocks)\n"
217 " part can be either partition number or partition name\n"
218 "part size <interface> <dev> <part> <varname>\n"
219 " - set environment variable to the size of the partition (in blocks)\n"
220 " part can be either partition number or partition name\n"
221 "part number <interface> <dev> <part> <varname>\n"
222 " - set environment variable to the partition number using the partition name\n"
223 " part must be specified as partition name"