| Simon Glass | 7fca71d | 2022-04-24 23:31:12 -0600 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * 'bootmeth' command |
| 4 | * |
| 5 | * Copyright 2021 Google LLC |
| 6 | * Written by Simon Glass <sjg@chromium.org> |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <bootdev.h> |
| 11 | #include <bootmeth.h> |
| 12 | #include <bootstd.h> |
| 13 | #include <command.h> |
| 14 | #include <dm.h> |
| 15 | #include <malloc.h> |
| 16 | #include <dm/uclass-internal.h> |
| 17 | |
| 18 | static int do_bootmeth_list(struct cmd_tbl *cmdtp, int flag, int argc, |
| 19 | char *const argv[]) |
| 20 | { |
| 21 | struct bootstd_priv *std; |
| 22 | struct udevice *dev; |
| 23 | bool use_order; |
| 24 | bool all = false; |
| 25 | int ret; |
| 26 | int i; |
| 27 | |
| 28 | if (argc > 1 && *argv[1] == '-') { |
| 29 | all = strchr(argv[1], 'a'); |
| 30 | argc--; |
| 31 | argv++; |
| 32 | } |
| 33 | |
| 34 | ret = bootstd_get_priv(&std); |
| 35 | if (ret) { |
| 36 | printf("Cannot get bootstd (err=%d)\n", ret); |
| 37 | return CMD_RET_FAILURE; |
| 38 | } |
| 39 | |
| 40 | printf("Order Seq Name Description\n"); |
| 41 | printf("----- --- ------------------ ------------------\n"); |
| 42 | |
| 43 | /* |
| 44 | * Use the ordering if we have one, so long as we are not trying to list |
| 45 | * all bootmethds |
| 46 | */ |
| 47 | use_order = std->bootmeth_count && !all; |
| 48 | if (use_order) |
| 49 | dev = std->bootmeth_order[0]; |
| 50 | else |
| 51 | ret = uclass_find_first_device(UCLASS_BOOTMETH, &dev); |
| 52 | |
| 53 | for (i = 0; dev;) { |
| 54 | struct bootmeth_uc_plat *ucp = dev_get_uclass_plat(dev); |
| 55 | int order = i; |
| 56 | |
| 57 | /* |
| 58 | * With the -a flag we may list bootdevs that are not in the |
| 59 | * ordering. Find their place in the order |
| 60 | */ |
| 61 | if (all && std->bootmeth_count) { |
| 62 | int j; |
| 63 | |
| 64 | /* Find the position of this bootmeth in the order */ |
| 65 | order = -1; |
| 66 | for (j = 0; j < std->bootmeth_count; j++) { |
| 67 | if (std->bootmeth_order[j] == dev) |
| 68 | order = j; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | if (order == -1) |
| 73 | printf("%5s", "-"); |
| 74 | else |
| 75 | printf("%5x", order); |
| 76 | printf(" %3x %-19.19s %s\n", dev_seq(dev), dev->name, |
| 77 | ucp->desc); |
| 78 | i++; |
| 79 | if (use_order) |
| 80 | dev = std->bootmeth_order[i]; |
| 81 | else |
| 82 | uclass_find_next_device(&dev); |
| 83 | } |
| 84 | printf("----- --- ------------------ ------------------\n"); |
| 85 | printf("(%d bootmeth%s)\n", i, i != 1 ? "s" : ""); |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | static int do_bootmeth_order(struct cmd_tbl *cmdtp, int flag, int argc, |
| 91 | char *const argv[]) |
| 92 | { |
| 93 | int ret; |
| 94 | |
| 95 | ret = bootmeth_set_order(argv[1]); |
| 96 | if (ret) { |
| 97 | printf("Failed (err=%d)\n", ret); |
| 98 | return CMD_RET_FAILURE; |
| 99 | } |
| 100 | env_set("bootmeths", argv[1]); |
| 101 | |
| 102 | return 0; |
| 103 | } |
| 104 | |
| 105 | #ifdef CONFIG_SYS_LONGHELP |
| 106 | static char bootmeth_help_text[] = |
| 107 | "list [-a] - list available bootmeths (-a all)\n" |
| 108 | "bootmeth order [<bd> ...] - select bootmeth order / subset to use"; |
| 109 | #endif |
| 110 | |
| 111 | U_BOOT_CMD_WITH_SUBCMDS(bootmeth, "Boot methods", bootmeth_help_text, |
| 112 | U_BOOT_SUBCMD_MKENT(list, 2, 1, do_bootmeth_list), |
| 113 | U_BOOT_SUBCMD_MKENT(order, CONFIG_SYS_MAXARGS, 1, do_bootmeth_order)); |