blob: 9ec054af3b359b6048df6d5f503307cec156697c [file] [log] [blame]
Simon Schwarz1648a372012-03-15 04:01:34 +00001/*
2 * Copyright (C) 2011
3 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <cmd_spl.h>
27
28DECLARE_GLOBAL_DATA_PTR;
29
30static const char **subcmd_list[] = {
31
32 [SPL_EXPORT_FDT] = (const char * []) {
33#ifdef CONFIG_OF_LIBFDT
34 "start",
35 "loados",
36 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
37 "ramdisk",
38 #endif
39 "fdt",
40 "cmdline",
41 "bdt",
42 "prep",
43#endif
44 NULL,
45 },
46 [SPL_EXPORT_ATAGS] = (const char * []) {
47#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
48 defined(CONFIG_CMDLINE_TAG) || \
49 defined(CONFIG_INITRD_TAG) || \
50 defined(CONFIG_SERIAL_TAG) || \
51 defined(CONFIG_REVISION_TAG)
52 "start",
53 "loados",
54#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
55 "ramdisk",
56#endif
57 "cmdline",
58 "bdt",
59 "prep",
60#endif
61 NULL,
62 },
63 NULL
64};
65
66/* Calls bootm with the parameters given */
67static int call_bootm(int argc, char * const argv[], const char *subcommand[])
68{
69 char *bootm_argv[5];
70
71 int i = 0;
72 int ret = 0;
73 int j;
74
75 /* create paramter array */
76 bootm_argv[0] = "do_bootm";
77 switch (argc) {
78 case 3:
79 bootm_argv[4] = argv[2]; /* fdt addr */
80 case 2:
81 bootm_argv[3] = argv[1]; /* initrd addr */
82 case 1:
83 bootm_argv[2] = argv[0]; /* kernel addr */
84 }
85
86
87 /*
88 * - do the work -
89 * exec subcommands of do_bootm to init the images
90 * data structure
91 */
92 while (subcommand[i] != NULL) {
93 bootm_argv[1] = (char *)subcommand[i];
94 debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
95 for (j = 0; j < argc; j++)
96 debug("%s ", bootm_argv[j + 2]);
97 debug("\n");
98
99 ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
100 bootm_argv);
101 debug("Subcommand retcode: %d\n", ret);
102 i++;
103 }
104
105 if (ret) {
106 printf("ERROR prep subcommand failed!\n");
107 return -1;
108 }
109
110 return 0;
111}
112
113static cmd_tbl_t cmd_spl_export_sub[] = {
114 U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
115 U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
116};
117
118static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
119{
120 const cmd_tbl_t *c;
121
122 if (argc < 2) /* no subcommand */
123 return cmd_usage(cmdtp);
124
125 c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
126 ARRAY_SIZE(cmd_spl_export_sub));
127 if ((c) && ((int)c->cmd <= SPL_EXPORT_LAST)) {
128 argc -= 2;
129 argv += 2;
130 if (call_bootm(argc, argv, subcmd_list[(int)c->cmd]))
131 return -1;
132 switch ((int)c->cmd) {
133 case SPL_EXPORT_FDT:
134 printf("Argument image is now in RAM: 0x%p\n",
135 (void *)images.ft_addr);
136 break;
137 case SPL_EXPORT_ATAGS:
138 printf("Argument image is now in RAM at: 0x%p\n",
139 (void *)gd->bd->bi_boot_params);
140 break;
141 }
142 } else {
143 /* Unrecognized command */
144 return cmd_usage(cmdtp);
145 }
146
147 return 0;
148}
149
150static cmd_tbl_t cmd_spl_sub[] = {
151 U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
152};
153
154static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
155{
156 const cmd_tbl_t *c;
157 int cmd;
158
159 if (argc < 2) /* no subcommand */
160 return cmd_usage(cmdtp);
161
162 c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
163 if (c) {
164 cmd = (int)c->cmd;
165 switch (cmd) {
166 case SPL_EXPORT:
167 argc--;
168 argv++;
169 if (spl_export(cmdtp, flag, argc, argv))
170 printf("Subcommand failed\n");
171 break;
172 default:
173 /* unrecognized command */
174 return cmd_usage(cmdtp);
175 }
176 } else {
177 /* Unrecognized command */
178 return cmd_usage(cmdtp);
179 }
180 return 0;
181}
182
183U_BOOT_CMD(
184 spl, 6 , 1, do_spl, "SPL configuration",
185 "export <img=atags|fdt> [kernel_addr] [initrd_addr] "
186 "[fdt_addr if <img> = fdt] - export a kernel parameter image\n"
187 "\t initrd_img can be set to \"-\" if fdt_addr without initrd img is"
188 "used");