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libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>
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1 /*
2  * Copyright (C) 2011
3  * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <command.h>
10 #include <cmd_spl.h>
11 #include <linux/libfdt.h>
12
13 DECLARE_GLOBAL_DATA_PTR;
14
15 static const char **subcmd_list[] = {
16
17         [SPL_EXPORT_FDT] = (const char * []) {
18 #ifdef CONFIG_OF_LIBFDT
19                 "start",
20                 "loados",
21         #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
22                 "ramdisk",
23         #endif
24                 "fdt",
25                 "cmdline",
26                 "bdt",
27                 "prep",
28 #endif
29                 NULL,
30         },
31         [SPL_EXPORT_ATAGS] = (const char * []) {
32 #if defined(CONFIG_SETUP_MEMORY_TAGS) || \
33         defined(CONFIG_CMDLINE_TAG) || \
34         defined(CONFIG_INITRD_TAG) || \
35         defined(CONFIG_SERIAL_TAG) || \
36         defined(CONFIG_REVISION_TAG)
37                 "start",
38                 "loados",
39 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
40                 "ramdisk",
41 #endif
42                 "cmdline",
43                 "bdt",
44                 "prep",
45 #endif
46                 NULL,
47         },
48         NULL
49 };
50
51 /* Calls bootm with the parameters given */
52 static int call_bootm(int argc, char * const argv[], const char *subcommand[])
53 {
54         char *bootm_argv[5];
55
56         int i = 0;
57         int ret = 0;
58         int j;
59
60         /* create paramter array */
61         bootm_argv[0] = "do_bootm";
62         switch (argc) {
63         case 3:
64                 bootm_argv[4] = argv[2]; /* fdt addr */
65         case 2:
66                 bootm_argv[3] = argv[1]; /* initrd addr */
67         case 1:
68                 bootm_argv[2] = argv[0]; /* kernel addr */
69         }
70
71
72         /*
73          * - do the work -
74          * exec subcommands of do_bootm to init the images
75          * data structure
76          */
77         while (subcommand[i] != NULL) {
78                 bootm_argv[1] = (char *)subcommand[i];
79                 debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
80                 for (j = 0; j < argc; j++)
81                         debug("%s ", bootm_argv[j + 2]);
82                 debug("\n");
83
84                 ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
85                         bootm_argv);
86                 debug("Subcommand retcode: %d\n", ret);
87                 i++;
88         }
89
90         if (ret) {
91                 printf("ERROR prep subcommand failed!\n");
92                 return -1;
93         }
94
95         return 0;
96 }
97
98 static cmd_tbl_t cmd_spl_export_sub[] = {
99         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
100         U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
101 };
102
103 static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
104 {
105         const cmd_tbl_t *c;
106
107         if (argc < 2) /* no subcommand */
108                 return cmd_usage(cmdtp);
109
110         c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
111                 ARRAY_SIZE(cmd_spl_export_sub));
112         if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
113                 argc -= 2;
114                 argv += 2;
115                 if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
116                         return -1;
117                 switch ((long)c->cmd) {
118 #ifdef CONFIG_OF_LIBFDT
119                 case SPL_EXPORT_FDT:
120                         printf("Argument image is now in RAM: 0x%p\n",
121                                 (void *)images.ft_addr);
122                         env_set_addr("fdtargsaddr", images.ft_addr);
123                         env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
124 #ifdef CONFIG_CMD_SPL_WRITE_SIZE
125                         if (fdt_totalsize(images.ft_addr) >
126                             CONFIG_CMD_SPL_WRITE_SIZE)
127                                 puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
128 #endif
129                         break;
130 #endif
131                 case SPL_EXPORT_ATAGS:
132                         printf("Argument image is now in RAM at: 0x%p\n",
133                                 (void *)gd->bd->bi_boot_params);
134                         break;
135                 }
136         } else {
137                 /* Unrecognized command */
138                 return cmd_usage(cmdtp);
139         }
140
141         return 0;
142 }
143
144 static cmd_tbl_t cmd_spl_sub[] = {
145         U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
146 };
147
148 static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
149 {
150         const cmd_tbl_t *c;
151         int cmd;
152
153         if (argc < 2) /* no subcommand */
154                 return cmd_usage(cmdtp);
155
156         c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
157         if (c) {
158                 cmd = (long)c->cmd;
159                 switch (cmd) {
160                 case SPL_EXPORT:
161                         argc--;
162                         argv++;
163                         if (spl_export(cmdtp, flag, argc, argv))
164                                 printf("Subcommand failed\n");
165                         break;
166                 default:
167                         /* unrecognized command */
168                         return cmd_usage(cmdtp);
169                 }
170         } else {
171                 /* Unrecognized command */
172                 return cmd_usage(cmdtp);
173         }
174         return 0;
175 }
176
177 U_BOOT_CMD(
178         spl, 6 , 1, do_spl, "SPL configuration",
179         "export <img=atags|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
180         "\timg\t\t\"atags\" or \"fdt\"\n"
181         "\tkernel_addr\taddress where a kernel image is stored.\n"
182         "\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
183         "\tinitrd_addr\taddress of initial ramdisk\n"
184         "\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
185         "\tfdt_addr\tin case of fdt, the address of the device tree.\n"
186         );