blob: c9a27fe8ac685081bf473ef57ffec8d2f9334172 [file] [log] [blame]
Simon Glass7fca71d2022-04-24 23:31:12 -06001// 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
18static 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
90static 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
106static 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
111U_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));