projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 17030c7c RT |
1 | // SPDX-License-Identifier: BSD-2-Clause |
| 2 | /* | |
| 3 | * Copyright (C) 2017 The Android Open Source Project | |
| 4 | */ | |
| 5 | ||
| e6f6f9e6 | 6 | #include <common.h> |
| 17030c7c RT |
7 | #include <android_ab.h> |
| 8 | #include <command.h> | |
| 09140113 | 9 | #include <env.h> |
| e6f6f9e6 | 10 | #include <part.h> |
| 17030c7c | 11 | |
| 09140113 SG |
12 | static int do_ab_select(struct cmd_tbl *cmdtp, int flag, int argc, |
| 13 | char *const argv[]) | |
| 17030c7c RT |
14 | { |
| 15 | int ret; | |
| 16 | struct blk_desc *dev_desc; | |
| 0528979f | 17 | struct disk_partition part_info; |
| 17030c7c RT |
18 | char slot[2]; |
| 19 | ||
| 20 | if (argc != 4) | |
| 21 | return CMD_RET_USAGE; | |
| 22 | ||
| 23 | /* Lookup the "misc" partition from argv[2] and argv[3] */ | |
| 24 | if (part_get_info_by_dev_and_name_or_num(argv[2], argv[3], | |
| 9f7bb282 SA |
25 | &dev_desc, &part_info, |
| 26 | false) < 0) { | |
| 17030c7c RT |
27 | return CMD_RET_FAILURE; |
| 28 | } | |
| 29 | ||
| 30 | ret = ab_select_slot(dev_desc, &part_info); | |
| 31 | if (ret < 0) { | |
| 32 | printf("Android boot failed, error %d.\n", ret); | |
| 33 | return CMD_RET_FAILURE; | |
| 34 | } | |
| 35 | ||
| 36 | /* Android standard slot names are 'a', 'b', ... */ | |
| 37 | slot[0] = BOOT_SLOT_NAME(ret); | |
| 38 | slot[1] = '\0'; | |
| 39 | env_set(argv[1], slot); | |
| 40 | printf("ANDROID: Booting slot: %s\n", slot); | |
| 41 | return CMD_RET_SUCCESS; | |
| 42 | } | |
| 43 | ||
| 44 | U_BOOT_CMD(ab_select, 4, 0, do_ab_select, | |
| 45 | "Select the slot used to boot from and register the boot attempt.", | |
| 46 | "<slot_var_name> <interface> <dev[:part|#part_name]>\n" | |
| 47 | " - Load the slot metadata from the partition 'part' on\n" | |
| 48 | " device type 'interface' instance 'dev' and store the active\n" | |
| 49 | " slot in the 'slot_var_name' variable. This also updates the\n" | |
| 50 | " Android slot metadata with a boot attempt, which can cause\n" | |
| 51 | " successive calls to this function to return a different result\n" | |
| 52 | " if the returned slot runs out of boot attempts.\n" | |
| 53 | " - If 'part_name' is passed, preceded with a # instead of :, the\n" | |
| 54 | " partition name whose label is 'part_name' will be looked up in\n" | |
| 55 | " the partition table. This is commonly the \"misc\" partition.\n" | |
| 56 | ); |