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c609719b WD |
1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
4 | * Marius Groeger <mgroeger@sysgo.de> | |
5 | * | |
6 | * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (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 | |
232c150a | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
c609719b WD |
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 | |
232c150a | 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
c609719b WD |
21 | * |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | #include <command.h> | |
c609719b WD |
26 | #include <image.h> |
27 | #include <zlib.h> | |
28 | #include <asm/byteorder.h> | |
2abbe075 WD |
29 | #ifdef CONFIG_HAS_DATAFLASH |
30 | #include <dataflash.h> | |
31 | #endif | |
c609719b | 32 | |
d87080b7 WD |
33 | DECLARE_GLOBAL_DATA_PTR; |
34 | ||
8bde7f77 WD |
35 | /*cmd_boot.c*/ |
36 | extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); | |
37 | ||
c609719b WD |
38 | #if defined (CONFIG_SETUP_MEMORY_TAGS) || \ |
39 | defined (CONFIG_CMDLINE_TAG) || \ | |
40 | defined (CONFIG_INITRD_TAG) || \ | |
b6e4c403 WD |
41 | defined (CONFIG_SERIAL_TAG) || \ |
42 | defined (CONFIG_REVISION_TAG) || \ | |
8655b6f8 WD |
43 | defined (CONFIG_VFD) || \ |
44 | defined (CONFIG_LCD) | |
5779d8d9 WD |
45 | static void setup_start_tag (bd_t *bd); |
46 | ||
699b13a6 | 47 | # ifdef CONFIG_SETUP_MEMORY_TAGS |
5779d8d9 | 48 | static void setup_memory_tags (bd_t *bd); |
699b13a6 | 49 | # endif |
5779d8d9 WD |
50 | static void setup_commandline_tag (bd_t *bd, char *commandline); |
51 | ||
c609719b | 52 | #if 0 |
5779d8d9 | 53 | static void setup_ramdisk_tag (bd_t *bd); |
c609719b | 54 | #endif |
699b13a6 | 55 | # ifdef CONFIG_INITRD_TAG |
5779d8d9 WD |
56 | static void setup_initrd_tag (bd_t *bd, ulong initrd_start, |
57 | ulong initrd_end); | |
699b13a6 | 58 | # endif |
5779d8d9 WD |
59 | static void setup_end_tag (bd_t *bd); |
60 | ||
8655b6f8 | 61 | # if defined (CONFIG_VFD) || defined (CONFIG_LCD) |
5779d8d9 | 62 | static void setup_videolfb_tag (gd_t *gd); |
699b13a6 | 63 | # endif |
c609719b WD |
64 | |
65 | ||
66 | static struct tag *params; | |
67 | #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ | |
68 | ||
5779d8d9 | 69 | extern image_header_t header; /* from cmd_bootm.c */ |
c609719b WD |
70 | |
71 | ||
5779d8d9 WD |
72 | void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], |
73 | ulong addr, ulong *len_ptr, int verify) | |
c609719b | 74 | { |
5779d8d9 WD |
75 | ulong len = 0, checksum; |
76 | ulong initrd_start, initrd_end; | |
77 | ulong data; | |
a2663ea4 | 78 | void (*theKernel)(int zero, int arch, uint params); |
5779d8d9 WD |
79 | image_header_t *hdr = &header; |
80 | bd_t *bd = gd->bd; | |
3c234efa UKK |
81 | int machid = bd->bi_arch_number; |
82 | char *s; | |
5779d8d9 | 83 | |
c609719b | 84 | #ifdef CONFIG_CMDLINE_TAG |
5779d8d9 | 85 | char *commandline = getenv ("bootargs"); |
c609719b WD |
86 | #endif |
87 | ||
a2663ea4 | 88 | theKernel = (void (*)(int, int, uint))ntohl(hdr->ih_ep); |
c609719b | 89 | |
3c234efa UKK |
90 | s = getenv ("machid"); |
91 | if (s) { | |
92 | machid = simple_strtoul (s, NULL, 16); | |
93 | printf ("Using machid 0x%x from environment\n", machid); | |
94 | } | |
95 | ||
5779d8d9 WD |
96 | /* |
97 | * Check if there is an initrd image | |
98 | */ | |
99 | if (argc >= 3) { | |
fad63407 | 100 | show_boot_progress (9); |
384ae025 | 101 | |
5779d8d9 | 102 | addr = simple_strtoul (argv[2], NULL, 16); |
c609719b | 103 | |
5779d8d9 | 104 | printf ("## Loading Ramdisk Image at %08lx ...\n", addr); |
c609719b | 105 | |
5779d8d9 | 106 | /* Copy header so we can blank CRC field for re-calculation */ |
2abbe075 | 107 | #ifdef CONFIG_HAS_DATAFLASH |
5779d8d9 WD |
108 | if (addr_dataflash (addr)) { |
109 | read_dataflash (addr, sizeof (image_header_t), | |
110 | (char *) &header); | |
111 | } else | |
8bde7f77 | 112 | #endif |
5779d8d9 WD |
113 | memcpy (&header, (char *) addr, |
114 | sizeof (image_header_t)); | |
c609719b | 115 | |
5779d8d9 WD |
116 | if (ntohl (hdr->ih_magic) != IH_MAGIC) { |
117 | printf ("Bad Magic Number\n"); | |
fad63407 | 118 | show_boot_progress (-10); |
5779d8d9 WD |
119 | do_reset (cmdtp, flag, argc, argv); |
120 | } | |
c609719b | 121 | |
5779d8d9 WD |
122 | data = (ulong) & header; |
123 | len = sizeof (image_header_t); | |
c609719b | 124 | |
5779d8d9 WD |
125 | checksum = ntohl (hdr->ih_hcrc); |
126 | hdr->ih_hcrc = 0; | |
c609719b | 127 | |
d52fb7e3 | 128 | if (crc32 (0, (unsigned char *) data, len) != checksum) { |
5779d8d9 | 129 | printf ("Bad Header Checksum\n"); |
fad63407 | 130 | show_boot_progress (-11); |
5779d8d9 WD |
131 | do_reset (cmdtp, flag, argc, argv); |
132 | } | |
c609719b | 133 | |
fad63407 | 134 | show_boot_progress (10); |
384ae025 | 135 | |
5779d8d9 | 136 | print_image_hdr (hdr); |
c609719b | 137 | |
5779d8d9 WD |
138 | data = addr + sizeof (image_header_t); |
139 | len = ntohl (hdr->ih_size); | |
c609719b | 140 | |
2abbe075 | 141 | #ifdef CONFIG_HAS_DATAFLASH |
5779d8d9 WD |
142 | if (addr_dataflash (addr)) { |
143 | read_dataflash (data, len, (char *) CFG_LOAD_ADDR); | |
144 | data = CFG_LOAD_ADDR; | |
145 | } | |
2abbe075 WD |
146 | #endif |
147 | ||
5779d8d9 WD |
148 | if (verify) { |
149 | ulong csum = 0; | |
150 | ||
151 | printf (" Verifying Checksum ... "); | |
d52fb7e3 | 152 | csum = crc32 (0, (unsigned char *) data, len); |
5779d8d9 WD |
153 | if (csum != ntohl (hdr->ih_dcrc)) { |
154 | printf ("Bad Data CRC\n"); | |
fad63407 | 155 | show_boot_progress (-12); |
5779d8d9 WD |
156 | do_reset (cmdtp, flag, argc, argv); |
157 | } | |
158 | printf ("OK\n"); | |
159 | } | |
160 | ||
fad63407 | 161 | show_boot_progress (11); |
5779d8d9 WD |
162 | |
163 | if ((hdr->ih_os != IH_OS_LINUX) || | |
164 | (hdr->ih_arch != IH_CPU_ARM) || | |
165 | (hdr->ih_type != IH_TYPE_RAMDISK)) { | |
166 | printf ("No Linux ARM Ramdisk Image\n"); | |
fad63407 | 167 | show_boot_progress (-13); |
5779d8d9 WD |
168 | do_reset (cmdtp, flag, argc, argv); |
169 | } | |
170 | ||
c570b2fd | 171 | #if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO) |
074cff0d WD |
172 | /* |
173 | *we need to copy the ramdisk to SRAM to let Linux boot | |
174 | */ | |
175 | memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len); | |
176 | data = ntohl(hdr->ih_load); | |
a1f4a3dd | 177 | #endif /* CONFIG_B2 || CONFIG_EVB4510 */ |
074cff0d | 178 | |
5779d8d9 WD |
179 | /* |
180 | * Now check if we have a multifile image | |
181 | */ | |
182 | } else if ((hdr->ih_type == IH_TYPE_MULTI) && (len_ptr[1])) { | |
183 | ulong tail = ntohl (len_ptr[0]) % 4; | |
184 | int i; | |
185 | ||
fad63407 | 186 | show_boot_progress (13); |
5779d8d9 WD |
187 | |
188 | /* skip kernel length and terminator */ | |
189 | data = (ulong) (&len_ptr[2]); | |
190 | /* skip any additional image length fields */ | |
191 | for (i = 1; len_ptr[i]; ++i) | |
192 | data += 4; | |
193 | /* add kernel length, and align */ | |
194 | data += ntohl (len_ptr[0]); | |
195 | if (tail) { | |
196 | data += 4 - tail; | |
197 | } | |
198 | ||
199 | len = ntohl (len_ptr[1]); | |
200 | ||
201 | } else { | |
202 | /* | |
203 | * no initrd image | |
204 | */ | |
fad63407 | 205 | show_boot_progress (14); |
5779d8d9 WD |
206 | |
207 | len = data = 0; | |
c609719b WD |
208 | } |
209 | ||
c609719b | 210 | #ifdef DEBUG |
5779d8d9 WD |
211 | if (!data) { |
212 | printf ("No initrd\n"); | |
213 | } | |
c609719b WD |
214 | #endif |
215 | ||
5779d8d9 WD |
216 | if (data) { |
217 | initrd_start = data; | |
218 | initrd_end = initrd_start + len; | |
219 | } else { | |
220 | initrd_start = 0; | |
221 | initrd_end = 0; | |
222 | } | |
c609719b | 223 | |
fad63407 | 224 | show_boot_progress (15); |
384ae025 | 225 | |
5779d8d9 WD |
226 | debug ("## Transferring control to Linux (at address %08lx) ...\n", |
227 | (ulong) theKernel); | |
c609719b WD |
228 | |
229 | #if defined (CONFIG_SETUP_MEMORY_TAGS) || \ | |
230 | defined (CONFIG_CMDLINE_TAG) || \ | |
231 | defined (CONFIG_INITRD_TAG) || \ | |
b6e4c403 WD |
232 | defined (CONFIG_SERIAL_TAG) || \ |
233 | defined (CONFIG_REVISION_TAG) || \ | |
8655b6f8 | 234 | defined (CONFIG_LCD) || \ |
c609719b | 235 | defined (CONFIG_VFD) |
5779d8d9 | 236 | setup_start_tag (bd); |
b6e4c403 WD |
237 | #ifdef CONFIG_SERIAL_TAG |
238 | setup_serial_tag (¶ms); | |
239 | #endif | |
240 | #ifdef CONFIG_REVISION_TAG | |
241 | setup_revision_tag (¶ms); | |
242 | #endif | |
c609719b | 243 | #ifdef CONFIG_SETUP_MEMORY_TAGS |
5779d8d9 | 244 | setup_memory_tags (bd); |
c609719b WD |
245 | #endif |
246 | #ifdef CONFIG_CMDLINE_TAG | |
5779d8d9 | 247 | setup_commandline_tag (bd, commandline); |
c609719b WD |
248 | #endif |
249 | #ifdef CONFIG_INITRD_TAG | |
5779d8d9 WD |
250 | if (initrd_start && initrd_end) |
251 | setup_initrd_tag (bd, initrd_start, initrd_end); | |
c609719b | 252 | #endif |
8655b6f8 | 253 | #if defined (CONFIG_VFD) || defined (CONFIG_LCD) |
5779d8d9 | 254 | setup_videolfb_tag ((gd_t *) gd); |
c609719b | 255 | #endif |
5779d8d9 | 256 | setup_end_tag (bd); |
c609719b WD |
257 | #endif |
258 | ||
5779d8d9 WD |
259 | /* we assume that the kernel is in place */ |
260 | printf ("\nStarting kernel ...\n\n"); | |
c609719b | 261 | |
232c150a WD |
262 | #ifdef CONFIG_USB_DEVICE |
263 | { | |
264 | extern void udc_disconnect (void); | |
265 | udc_disconnect (); | |
266 | } | |
267 | #endif | |
268 | ||
5779d8d9 | 269 | cleanup_before_linux (); |
c609719b | 270 | |
3c234efa | 271 | theKernel (0, machid, bd->bi_boot_params); |
c609719b WD |
272 | } |
273 | ||
274 | ||
275 | #if defined (CONFIG_SETUP_MEMORY_TAGS) || \ | |
276 | defined (CONFIG_CMDLINE_TAG) || \ | |
277 | defined (CONFIG_INITRD_TAG) || \ | |
b6e4c403 WD |
278 | defined (CONFIG_SERIAL_TAG) || \ |
279 | defined (CONFIG_REVISION_TAG) || \ | |
8655b6f8 | 280 | defined (CONFIG_LCD) || \ |
c609719b | 281 | defined (CONFIG_VFD) |
5779d8d9 | 282 | static void setup_start_tag (bd_t *bd) |
c609719b | 283 | { |
5779d8d9 | 284 | params = (struct tag *) bd->bi_boot_params; |
c609719b | 285 | |
5779d8d9 WD |
286 | params->hdr.tag = ATAG_CORE; |
287 | params->hdr.size = tag_size (tag_core); | |
c609719b | 288 | |
5779d8d9 WD |
289 | params->u.core.flags = 0; |
290 | params->u.core.pagesize = 0; | |
291 | params->u.core.rootdev = 0; | |
c609719b | 292 | |
5779d8d9 | 293 | params = tag_next (params); |
c609719b WD |
294 | } |
295 | ||
296 | ||
699b13a6 | 297 | #ifdef CONFIG_SETUP_MEMORY_TAGS |
5779d8d9 | 298 | static void setup_memory_tags (bd_t *bd) |
c609719b | 299 | { |
5779d8d9 | 300 | int i; |
c609719b | 301 | |
5779d8d9 WD |
302 | for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
303 | params->hdr.tag = ATAG_MEM; | |
304 | params->hdr.size = tag_size (tag_mem32); | |
c609719b | 305 | |
5779d8d9 WD |
306 | params->u.mem.start = bd->bi_dram[i].start; |
307 | params->u.mem.size = bd->bi_dram[i].size; | |
c609719b | 308 | |
5779d8d9 WD |
309 | params = tag_next (params); |
310 | } | |
c609719b | 311 | } |
5779d8d9 | 312 | #endif /* CONFIG_SETUP_MEMORY_TAGS */ |
c609719b WD |
313 | |
314 | ||
5779d8d9 | 315 | static void setup_commandline_tag (bd_t *bd, char *commandline) |
c609719b | 316 | { |
5779d8d9 | 317 | char *p; |
c609719b | 318 | |
109c0e3a WD |
319 | if (!commandline) |
320 | return; | |
321 | ||
5779d8d9 WD |
322 | /* eat leading white space */ |
323 | for (p = commandline; *p == ' '; p++); | |
c609719b | 324 | |
5779d8d9 WD |
325 | /* skip non-existent command lines so the kernel will still |
326 | * use its default command line. | |
327 | */ | |
328 | if (*p == '\0') | |
329 | return; | |
c609719b | 330 | |
5779d8d9 WD |
331 | params->hdr.tag = ATAG_CMDLINE; |
332 | params->hdr.size = | |
333 | (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2; | |
c609719b | 334 | |
5779d8d9 | 335 | strcpy (params->u.cmdline.cmdline, p); |
c609719b | 336 | |
5779d8d9 | 337 | params = tag_next (params); |
c609719b WD |
338 | } |
339 | ||
340 | ||
699b13a6 | 341 | #ifdef CONFIG_INITRD_TAG |
5779d8d9 | 342 | static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end) |
c609719b | 343 | { |
5779d8d9 WD |
344 | /* an ATAG_INITRD node tells the kernel where the compressed |
345 | * ramdisk can be found. ATAG_RDIMG is a better name, actually. | |
346 | */ | |
498b8db7 | 347 | params->hdr.tag = ATAG_INITRD2; |
5779d8d9 | 348 | params->hdr.size = tag_size (tag_initrd); |
c609719b | 349 | |
5779d8d9 WD |
350 | params->u.initrd.start = initrd_start; |
351 | params->u.initrd.size = initrd_end - initrd_start; | |
c609719b | 352 | |
5779d8d9 | 353 | params = tag_next (params); |
c609719b | 354 | } |
5779d8d9 | 355 | #endif /* CONFIG_INITRD_TAG */ |
c609719b WD |
356 | |
357 | ||
8655b6f8 WD |
358 | #if defined (CONFIG_VFD) || defined (CONFIG_LCD) |
359 | extern ulong calc_fbsize (void); | |
5779d8d9 | 360 | static void setup_videolfb_tag (gd_t *gd) |
c609719b | 361 | { |
5779d8d9 WD |
362 | /* An ATAG_VIDEOLFB node tells the kernel where and how large |
363 | * the framebuffer for video was allocated (among other things). | |
364 | * Note that a _physical_ address is passed ! | |
365 | * | |
366 | * We only use it to pass the address and size, the other entries | |
367 | * in the tag_videolfb are not of interest. | |
368 | */ | |
369 | params->hdr.tag = ATAG_VIDEOLFB; | |
370 | params->hdr.size = tag_size (tag_videolfb); | |
c609719b | 371 | |
5779d8d9 | 372 | params->u.videolfb.lfb_base = (u32) gd->fb_base; |
8655b6f8 WD |
373 | /* Fb size is calculated according to parameters for our panel |
374 | */ | |
375 | params->u.videolfb.lfb_size = calc_fbsize(); | |
c609719b | 376 | |
5779d8d9 | 377 | params = tag_next (params); |
c609719b | 378 | } |
8655b6f8 | 379 | #endif /* CONFIG_VFD || CONFIG_LCD */ |
c609719b | 380 | |
3a574cbe WD |
381 | #ifdef CONFIG_SERIAL_TAG |
382 | void setup_serial_tag (struct tag **tmp) | |
383 | { | |
384 | struct tag *params = *tmp; | |
385 | struct tag_serialnr serialnr; | |
386 | void get_board_serial(struct tag_serialnr *serialnr); | |
387 | ||
388 | get_board_serial(&serialnr); | |
389 | params->hdr.tag = ATAG_SERIAL; | |
390 | params->hdr.size = tag_size (tag_serialnr); | |
391 | params->u.serialnr.low = serialnr.low; | |
392 | params->u.serialnr.high= serialnr.high; | |
393 | params = tag_next (params); | |
394 | *tmp = params; | |
395 | } | |
396 | #endif | |
397 | ||
289f932c WD |
398 | #ifdef CONFIG_REVISION_TAG |
399 | void setup_revision_tag(struct tag **in_params) | |
400 | { | |
401 | u32 rev = 0; | |
289f932c WD |
402 | u32 get_board_rev(void); |
403 | ||
404 | rev = get_board_rev(); | |
289f932c WD |
405 | params->hdr.tag = ATAG_REVISION; |
406 | params->hdr.size = tag_size (tag_revision); | |
407 | params->u.revision.rev = rev; | |
408 | params = tag_next (params); | |
409 | } | |
410 | #endif /* CONFIG_REVISION_TAG */ | |
411 | ||
412 | ||
5779d8d9 | 413 | static void setup_end_tag (bd_t *bd) |
c609719b | 414 | { |
5779d8d9 WD |
415 | params->hdr.tag = ATAG_NONE; |
416 | params->hdr.size = 0; | |
c609719b WD |
417 | } |
418 | ||
419 | #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ |