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Marian Balakowicz5d3cc552008-01-08 18:11:43 +01001/*
2 * (C) Copyright 2008 Semihalf
3 *
4 * (C) Copyright 2000-2006
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
Marian Balakowicz75824382008-01-31 13:20:06 +010026
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010027#include <common.h>
28#include <watchdog.h>
29#include <command.h>
30#include <image.h>
31#include <malloc.h>
32#include <zlib.h>
33#include <bzlib.h>
34#include <environment.h>
35#include <asm/byteorder.h>
36
37#if defined(CONFIG_OF_LIBFDT)
38#include <fdt.h>
39#include <libfdt.h>
40#include <fdt_support.h>
Marian Balakowiczd3c5eb62008-01-31 13:20:08 +010041
42static void fdt_error (const char *msg);
Marian Balakowicz9a4daad2008-02-29 14:58:34 +010043static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +010044 bootm_headers_t *images, char **of_flat_tree, ulong *of_size);
Marian Balakowicz9a4daad2008-02-29 14:58:34 +010045static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +010046 cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
47 char **of_flat_tree, ulong *of_size);
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010048#endif
49
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010050#ifdef CFG_INIT_RAM_LOCK
51#include <asm/cache.h>
52#endif
53
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010054DECLARE_GLOBAL_DATA_PTR;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010055
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010056extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
Kumar Galae822d7f2008-02-27 21:51:49 -060057extern ulong get_effective_memsize(void);
Marian Balakowiczceaed2b2008-01-31 13:57:17 +010058static ulong get_sp (void);
Marian Balakowiczb6b0fe62008-01-31 13:58:13 +010059static void set_clocks_in_mhz (bd_t *kbd);
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010060
Kumar Galad3f2fa02008-02-27 21:51:50 -060061#ifndef CFG_LINUX_LOWMEM_MAX_SIZE
62#define CFG_LINUX_LOWMEM_MAX_SIZE (768*1024*1024)
63#endif
64
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010065void __attribute__((noinline))
Marian Balakowicz8a5ea3e2008-02-27 11:01:04 +010066do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
67 bootm_headers_t *images)
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010068{
Kumar Galae822d7f2008-02-27 21:51:49 -060069 ulong sp;
Marian Balakowiczb6b0fe62008-01-31 13:58:13 +010070
Marian Balakowiczf13e7b22008-01-08 18:12:17 +010071 ulong initrd_start, initrd_end;
Marian Balakowicz5ad03eb2008-01-31 13:55:39 +010072 ulong rd_data_start, rd_data_end, rd_len;
Kumar Galad3f2fa02008-02-27 21:51:50 -060073 ulong size;
Marian Balakowiczf13e7b22008-01-08 18:12:17 +010074
Kumar Galae822d7f2008-02-27 21:51:49 -060075 ulong cmd_start, cmd_end, bootmap_base;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010076 bd_t *kbd;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010077 ulong ep = 0;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010078 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
Kumar Galad2bc0952008-02-27 21:51:45 -060079 int ret;
Kumar Gala27953492008-02-27 21:51:44 -060080 ulong of_size = 0;
Kumar Galae822d7f2008-02-27 21:51:49 -060081 struct lmb *lmb = images->lmb;
Marian Balakowiczf13e7b22008-01-08 18:12:17 +010082
Marian Balakowicz4a2ad5f2008-01-31 13:20:07 +010083#if defined(CONFIG_OF_LIBFDT)
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +010084 char *of_flat_tree = NULL;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +010085#endif
86
Kumar Galad3f2fa02008-02-27 21:51:50 -060087 bootmap_base = getenv_bootm_low();
88 size = getenv_bootm_size();
89
90#ifdef DEBUG
91 if (((u64)bootmap_base + size) > (CFG_SDRAM_BASE + (u64)gd->ram_size))
92 puts("WARNING: bootm_low + bootm_size exceed total memory\n");
93 if ((bootmap_base + size) > get_effective_memsize())
94 puts("WARNING: bootm_low + bootm_size exceed eff. memory\n");
95#endif
96
97 size = min(size, get_effective_memsize());
98 size = min(size, CFG_LINUX_LOWMEM_MAX_SIZE);
99
100 if (size < getenv_bootm_size()) {
101 ulong base = bootmap_base + size;
102 printf("WARNING: adjusting available memory to %x\n", size);
103 lmb_reserve(lmb, base, getenv_bootm_size() - size);
104 }
Kumar Galae822d7f2008-02-27 21:51:49 -0600105
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100106 /*
107 * Booting a (Linux) kernel image
108 *
109 * Allocate space for command line and board info - the
110 * address should be as high as possible within the reach of
111 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
112 * memory, which means far enough below the current stack
113 * pointer.
114 */
Marian Balakowiczb6b0fe62008-01-31 13:58:13 +0100115 sp = get_sp();
Kumar Galad3f2fa02008-02-27 21:51:50 -0600116 debug ("## Current stack ends at 0x%08lx\n", sp);
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100117
Kumar Galae822d7f2008-02-27 21:51:49 -0600118 /* adjust sp by 1K to be safe */
119 sp -= 1024;
120 lmb_reserve(lmb, sp, (CFG_SDRAM_BASE + get_effective_memsize() - sp));
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100121
Kumar Gala27953492008-02-27 21:51:44 -0600122#if defined(CONFIG_OF_LIBFDT)
123 /* find flattened device tree */
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100124 ret = boot_get_fdt (cmdtp, flag, argc, argv, images, &of_flat_tree, &of_size);
Kumar Gala274cea22008-02-27 21:51:46 -0600125
126 if (ret)
127 goto error;
Kumar Gala27953492008-02-27 21:51:44 -0600128#endif
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100129
Kumar Gala27953492008-02-27 21:51:44 -0600130 if (!of_size) {
131 /* allocate space and init command line */
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100132 ret = boot_get_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base);
Kumar Galae822d7f2008-02-27 21:51:49 -0600133 if (ret) {
134 puts("ERROR with allocation of cmdline\n");
135 goto error;
136 }
Kumar Gala27953492008-02-27 21:51:44 -0600137
138 /* allocate space for kernel copy of board info */
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100139 ret = boot_get_kbd (lmb, &kbd, bootmap_base);
Kumar Galae822d7f2008-02-27 21:51:49 -0600140 if (ret) {
141 puts("ERROR with allocation of kernel bd\n");
142 goto error;
143 }
Kumar Gala27953492008-02-27 21:51:44 -0600144 set_clocks_in_mhz(kbd);
145 }
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100146
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100147 /* find kernel entry point */
148 if (images->legacy_hdr_valid) {
Marian Balakowiczcb1c4892008-04-11 11:07:49 +0200149 ep = image_get_ep (&images->legacy_hdr_os_copy);
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100150#if defined(CONFIG_FIT)
151 } else if (images->fit_uname_os) {
Marian Balakowiczcd7c5962008-03-12 10:33:00 +0100152 ret = fit_image_get_entry (images->fit_hdr_os,
153 images->fit_noffset_os, &ep);
154 if (ret) {
155 puts ("Can't get entry point property!\n");
156 goto error;
157 }
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100158#endif
159 } else {
160 puts ("Could not find kernel entry point!\n");
Kumar Gala274cea22008-02-27 21:51:46 -0600161 goto error;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100162 }
163 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))ep;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100164
Marian Balakowiczceaed2b2008-01-31 13:57:17 +0100165 /* find ramdisk */
Marian Balakowiczd985c842008-03-12 10:14:38 +0100166 ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_PPC,
167 &rd_data_start, &rd_data_end);
Kumar Gala274cea22008-02-27 21:51:46 -0600168 if (ret)
169 goto error;
170
Marian Balakowicz5ad03eb2008-01-31 13:55:39 +0100171 rd_len = rd_data_end - rd_data_start;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100172
Marian Balakowicz4a2ad5f2008-01-31 13:20:07 +0100173#if defined(CONFIG_OF_LIBFDT)
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100174 ret = boot_relocate_fdt (lmb, bootmap_base,
Kumar Galae822d7f2008-02-27 21:51:49 -0600175 cmdtp, flag, argc, argv, &of_flat_tree, &of_size);
Marian Balakowicz4a2ad5f2008-01-31 13:20:07 +0100176
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100177 /*
178 * Add the chosen node if it doesn't exist, add the env and bd_t
179 * if the user wants it (the logic is in the subroutines).
180 */
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100181 if (of_size) {
Kumar Galad2bc0952008-02-27 21:51:45 -0600182 /* pass in dummy initrd info, we'll fix up later */
183 if (fdt_chosen(of_flat_tree, rd_data_start, rd_data_end, 0) < 0) {
Marian Balakowiczd3c5eb62008-01-31 13:20:08 +0100184 fdt_error ("/chosen node create failed");
Kumar Gala274cea22008-02-27 21:51:46 -0600185 goto error;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100186 }
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100187#ifdef CONFIG_OF_BOARD_SETUP
188 /* Call the board-specific fixup routine */
189 ft_board_setup(of_flat_tree, gd->bd);
190#endif
191 }
Marian Balakowicz4a2ad5f2008-01-31 13:20:07 +0100192#endif /* CONFIG_OF_LIBFDT */
Marian Balakowiczd45d5a12008-01-08 18:11:43 +0100193
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100194 ret = boot_ramdisk_high (lmb, rd_data_start, rd_len, &initrd_start, &initrd_end);
Kumar Galae822d7f2008-02-27 21:51:49 -0600195 if (ret)
196 goto error;
Kumar Galad2bc0952008-02-27 21:51:45 -0600197
198#if defined(CONFIG_OF_LIBFDT)
199 /* fixup the initrd now that we know where it should be */
200 if ((of_flat_tree) && (initrd_start && initrd_end)) {
201 uint64_t addr, size;
202 int total = fdt_num_mem_rsv(of_flat_tree);
203 int j;
204
205 /* Look for the dummy entry and delete it */
206 for (j = 0; j < total; j++) {
207 fdt_get_mem_rsv(of_flat_tree, j, &addr, &size);
208 if (addr == rd_data_start) {
209 fdt_del_mem_rsv(of_flat_tree, j);
210 break;
211 }
212 }
213
214 ret = fdt_add_mem_rsv(of_flat_tree, initrd_start,
215 initrd_end - initrd_start + 1);
216 if (ret < 0) {
217 printf("fdt_chosen: %s\n", fdt_strerror(ret));
Kumar Gala274cea22008-02-27 21:51:46 -0600218 goto error;
Kumar Galad2bc0952008-02-27 21:51:45 -0600219 }
220
221 do_fixup_by_path_u32(of_flat_tree, "/chosen",
222 "linux,initrd-start", initrd_start, 0);
223 do_fixup_by_path_u32(of_flat_tree, "/chosen",
224 "linux,initrd-end", initrd_end, 0);
225 }
226#endif
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100227 debug ("## Transferring control to Linux (at address %08lx) ...\n",
228 (ulong)kernel);
229
230 show_boot_progress (15);
231
232#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
233 unlock_ram_in_cache();
234#endif
Kumar Gala75fa0022008-02-27 21:51:51 -0600235 if (!images->autostart)
236 return ;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100237
Marian Balakowicz4a2ad5f2008-01-31 13:20:07 +0100238#if defined(CONFIG_OF_LIBFDT)
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100239 if (of_flat_tree) { /* device tree; boot new style */
240 /*
241 * Linux Kernel Parameters (passing device tree):
242 * r3: pointer to the fdt, followed by the board info data
243 * r4: physical pointer to the kernel itself
244 * r5: NULL
245 * r6: NULL
246 * r7: NULL
247 */
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100248 debug (" Booting using OF flat tree...\n");
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100249 (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
250 /* does not return */
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100251 } else
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100252#endif
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100253 {
254 /*
255 * Linux Kernel Parameters (passing board info data):
256 * r3: ptr to board info data
257 * r4: initrd_start or 0 if no initrd
258 * r5: initrd_end - unused if r4 is 0
259 * r6: Start of command line string
260 * r7: End of command line string
261 */
262 debug (" Booting using board info...\n");
263 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
264 /* does not return */
265 }
Kumar Gala274cea22008-02-27 21:51:46 -0600266 return ;
267
268error:
Kumar Gala75fa0022008-02-27 21:51:51 -0600269 if (images->autostart)
270 do_reset (cmdtp, flag, argc, argv);
Kumar Gala274cea22008-02-27 21:51:46 -0600271 return ;
Marian Balakowicz5d3cc552008-01-08 18:11:43 +0100272}
Marian Balakowiczd3c5eb62008-01-31 13:20:08 +0100273
Marian Balakowiczceaed2b2008-01-31 13:57:17 +0100274static ulong get_sp (void)
275{
276 ulong sp;
277
278 asm( "mr %0,1": "=r"(sp) : );
279 return sp;
280}
281
Marian Balakowiczb6b0fe62008-01-31 13:58:13 +0100282static void set_clocks_in_mhz (bd_t *kbd)
283{
284 char *s;
285
286 if ((s = getenv ("clocks_in_mhz")) != NULL) {
287 /* convert all clock information to MHz */
288 kbd->bi_intfreq /= 1000000L;
289 kbd->bi_busfreq /= 1000000L;
290#if defined(CONFIG_MPC8220)
291 kbd->bi_inpfreq /= 1000000L;
292 kbd->bi_pcifreq /= 1000000L;
293 kbd->bi_pevfreq /= 1000000L;
294 kbd->bi_flbfreq /= 1000000L;
295 kbd->bi_vcofreq /= 1000000L;
296#endif
297#if defined(CONFIG_CPM2)
298 kbd->bi_cpmfreq /= 1000000L;
299 kbd->bi_brgfreq /= 1000000L;
300 kbd->bi_sccfreq /= 1000000L;
Wolfgang Denk438a4c12008-03-26 11:48:46 +0100301 kbd->bi_vco /= 1000000L;
Marian Balakowiczb6b0fe62008-01-31 13:58:13 +0100302#endif
303#if defined(CONFIG_MPC5xxx)
304 kbd->bi_ipbfreq /= 1000000L;
305 kbd->bi_pcifreq /= 1000000L;
306#endif /* CONFIG_MPC5xxx */
307 }
308}
309
Marian Balakowiczd3c5eb62008-01-31 13:20:08 +0100310#if defined(CONFIG_OF_LIBFDT)
311static void fdt_error (const char *msg)
312{
313 puts ("ERROR: ");
314 puts (msg);
315 puts (" - must RESET the board to recover.\n");
316}
Marian Balakowicz7b325452008-01-31 13:58:20 +0100317
Marian Balakowiczff0734c2008-02-27 11:02:26 +0100318static image_header_t *image_get_fdt (ulong fdt_addr)
319{
320 image_header_t *fdt_hdr = (image_header_t *)fdt_addr;
321
322 image_print_contents (fdt_hdr);
323
324 puts (" Verifying Checksum ... ");
325 if (!image_check_hcrc (fdt_hdr)) {
326 fdt_error ("fdt header checksum invalid");
327 return NULL;
328 }
329
330 if (!image_check_dcrc (fdt_hdr)) {
331 fdt_error ("fdt checksum invalid");
332 return NULL;
333 }
334 puts ("OK\n");
335
336 if (!image_check_type (fdt_hdr, IH_TYPE_FLATDT)) {
337 fdt_error ("uImage is not a fdt");
338 return NULL;
339 }
340 if (image_get_comp (fdt_hdr) != IH_COMP_NONE) {
341 fdt_error ("uImage is compressed");
342 return NULL;
343 }
344 if (fdt_check_header ((char *)image_get_data (fdt_hdr)) != 0) {
345 fdt_error ("uImage data is not a fdt");
346 return NULL;
347 }
348 return fdt_hdr;
349}
350
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100351/**
352 * fit_check_fdt - verify FIT format FDT subimage
353 * @fit_hdr: pointer to the FIT header
354 * fdt_noffset: FDT subimage node offset within FIT image
355 * @verify: data CRC verification flag
356 *
357 * fit_check_fdt() verifies integrity of the FDT subimage and from
358 * specified FIT image.
359 *
360 * returns:
361 * 1, on success
362 * 0, on failure
363 */
364#if defined(CONFIG_FIT)
365static int fit_check_fdt (const void *fit, int fdt_noffset, int verify)
366{
367 fit_image_print (fit, fdt_noffset, " ");
368
369 if (verify) {
370 puts (" Verifying Hash Integrity ... ");
371 if (!fit_image_check_hashes (fit, fdt_noffset)) {
372 fdt_error ("Bad Data Hash");
373 return 0;
374 }
375 puts ("OK\n");
376 }
377
378 if (!fit_image_check_type (fit, fdt_noffset, IH_TYPE_FLATDT)) {
379 fdt_error ("Not a FDT image");
380 return 0;
381 }
382
383 if (!fit_image_check_comp (fit, fdt_noffset, IH_COMP_NONE)) {
384 fdt_error ("FDT image is compressed");
385 return 0;
386 }
387
388 return 1;
389}
390#endif /* CONFIG_FIT */
391
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100392static int boot_get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100393 bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
Marian Balakowicz7b325452008-01-31 13:58:20 +0100394{
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100395 ulong fdt_addr;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100396 image_header_t *fdt_hdr;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100397 char *fdt_blob = NULL;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100398 ulong image_start, image_end;
399 ulong load_start, load_end;
400#if defined(CONFIG_FIT)
Wolfgang Denk438a4c12008-03-26 11:48:46 +0100401 void *fit_hdr;
402 const char *fit_uname_config = NULL;
403 const char *fit_uname_fdt = NULL;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100404 ulong default_addr;
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100405 int cfg_noffset;
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100406 int fdt_noffset;
407 const void *data;
408 size_t size;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100409#endif
Marian Balakowicz7b325452008-01-31 13:58:20 +0100410
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100411 *of_flat_tree = NULL;
412 *of_size = 0;
413
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100414 if (argc > 3 || genimg_has_config (images)) {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100415#if defined(CONFIG_FIT)
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100416 if (argc > 3) {
417 /*
418 * If the FDT blob comes from the FIT image and the
419 * FIT image address is omitted in the command line
420 * argument, try to use ramdisk or os FIT image
421 * address or default load address.
422 */
423 if (images->fit_uname_rd)
424 default_addr = (ulong)images->fit_hdr_rd;
425 else if (images->fit_uname_os)
426 default_addr = (ulong)images->fit_hdr_os;
427 else
428 default_addr = load_addr;
Marian Balakowiczfff888a12008-02-21 17:20:19 +0100429
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100430 if (fit_parse_conf (argv[3], default_addr,
431 &fdt_addr, &fit_uname_config)) {
432 debug ("* fdt: config '%s' from image at 0x%08lx\n",
433 fit_uname_config, fdt_addr);
434 } else if (fit_parse_subimage (argv[3], default_addr,
435 &fdt_addr, &fit_uname_fdt)) {
436 debug ("* fdt: subimage '%s' from image at 0x%08lx\n",
437 fit_uname_fdt, fdt_addr);
438 } else
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100439#endif
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100440 {
441 fdt_addr = simple_strtoul(argv[3], NULL, 16);
442 debug ("* fdt: cmdline image address = 0x%08lx\n",
443 fdt_addr);
444 }
445#if defined(CONFIG_FIT)
446 } else {
447 /* use FIT configuration provided in first bootm
448 * command argument
449 */
450 fdt_addr = (ulong)images->fit_hdr_os;
451 fit_uname_config = images->fit_uname_cfg;
452 debug ("* fdt: using config '%s' from image at 0x%08lx\n",
453 fit_uname_config, fdt_addr);
454
455 /*
456 * Check whether configuration has FDT blob defined,
457 * if not quit silently.
458 */
459 fit_hdr = (void *)fdt_addr;
460 cfg_noffset = fit_conf_get_node (fit_hdr,
461 fit_uname_config);
462 if (cfg_noffset < 0) {
463 debug ("* fdt: no such config\n");
464 return 0;
465 }
466
467 fdt_noffset = fit_conf_get_fdt_node (fit_hdr,
468 cfg_noffset);
469 if (fdt_noffset < 0) {
470 debug ("* fdt: no fdt in config\n");
471 return 0;
472 }
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100473 }
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100474#endif
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100475
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100476 debug ("## Checking for 'FDT'/'FDT Image' at %08lx\n",
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100477 fdt_addr);
Marian Balakowiczfff888a12008-02-21 17:20:19 +0100478
479 /* copy from dataflash if needed */
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100480 fdt_addr = genimg_get_image (fdt_addr);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100481
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100482 /*
483 * Check if there is an FDT image at the
484 * address provided in the second bootm argument
485 * check image type, for FIT images get a FIT node.
486 */
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100487 switch (genimg_get_format ((void *)fdt_addr)) {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100488 case IMAGE_FORMAT_LEGACY:
Marian Balakowiczff0734c2008-02-27 11:02:26 +0100489 /* verify fdt_addr points to a valid image header */
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100490 printf ("## Flattened Device Tree from Legacy Image at %08lx\n",
Marian Balakowiczff0734c2008-02-27 11:02:26 +0100491 fdt_addr);
492 fdt_hdr = image_get_fdt (fdt_addr);
493 if (!fdt_hdr)
Kumar Gala274cea22008-02-27 21:51:46 -0600494 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100495
Marian Balakowiczff0734c2008-02-27 11:02:26 +0100496 /*
497 * move image data to the load address,
498 * make sure we don't overwrite initial image
499 */
Marian Balakowicz7b325452008-01-31 13:58:20 +0100500 image_start = (ulong)fdt_hdr;
501 image_end = image_get_image_end (fdt_hdr);
502
503 load_start = image_get_load (fdt_hdr);
504 load_end = load_start + image_get_data_size (fdt_hdr);
505
506 if ((load_start < image_end) && (load_end > image_start)) {
507 fdt_error ("fdt overwritten");
Kumar Gala274cea22008-02-27 21:51:46 -0600508 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100509 }
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100510
511 debug (" Loading FDT from 0x%08lx to 0x%08lx\n",
512 image_get_data (fdt_hdr), load_start);
513
514 memmove ((void *)load_start,
Marian Balakowiczff0734c2008-02-27 11:02:26 +0100515 (void *)image_get_data (fdt_hdr),
516 image_get_data_size (fdt_hdr));
Marian Balakowicz7b325452008-01-31 13:58:20 +0100517
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100518 fdt_blob = (char *)load_start;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100519 break;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100520 case IMAGE_FORMAT_FIT:
Marian Balakowicz4efbe9d2008-02-27 11:02:26 +0100521 /*
522 * This case will catch both: new uImage format
523 * (libfdt based) and raw FDT blob (also libfdt
524 * based).
525 */
526#if defined(CONFIG_FIT)
527 /* check FDT blob vs FIT blob */
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100528 if (fit_check_format ((const void *)fdt_addr)) {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100529 /*
530 * FIT image
531 */
532 fit_hdr = (void *)fdt_addr;
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100533 printf ("## Flattened Device Tree from FIT Image at %08lx\n",
534 fdt_addr);
535
536 if (!fit_uname_fdt) {
537 /*
538 * no FDT blob image node unit name,
539 * try to get config node first. If
540 * config unit node name is NULL
541 * fit_conf_get_node() will try to
542 * find default config node
543 */
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100544 cfg_noffset = fit_conf_get_node (fit_hdr,
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100545 fit_uname_config);
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100546
547 if (cfg_noffset < 0) {
548 fdt_error ("Could not find configuration node\n");
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100549 goto error;
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100550 }
551
552 fit_uname_config = fdt_get_name (fit_hdr,
553 cfg_noffset, NULL);
554 printf (" Using '%s' configuration\n",
555 fit_uname_config);
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100556
557 fdt_noffset = fit_conf_get_fdt_node (fit_hdr,
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100558 cfg_noffset);
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100559 fit_uname_fdt = fit_get_name (fit_hdr,
560 fdt_noffset, NULL);
561 } else {
562 /* get FDT component image node offset */
563 fdt_noffset = fit_image_get_node (fit_hdr,
564 fit_uname_fdt);
565 }
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100566 if (fdt_noffset < 0) {
567 fdt_error ("Could not find subimage node\n");
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100568 goto error;
Marian Balakowiczf773bea2008-03-12 10:35:46 +0100569 }
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100570
571 printf (" Trying '%s' FDT blob subimage\n",
572 fit_uname_fdt);
573
574 if (!fit_check_fdt (fit_hdr, fdt_noffset,
575 images->verify))
576 goto error;
577
578 /* get ramdisk image data address and length */
579 if (fit_image_get_data (fit_hdr, fdt_noffset,
580 &data, &size)) {
581 fdt_error ("Could not find FDT subimage data");
582 goto error;
583 }
584
585 /* verift that image data is a proper FDT blob */
586 if (fdt_check_header ((char *)data) != 0) {
587 fdt_error ("Subimage data is not a FTD");
588 goto error;
589 }
590
591 /*
592 * move image data to the load address,
593 * make sure we don't overwrite initial image
594 */
595 image_start = (ulong)fit_hdr;
596 image_end = fit_get_end (fit_hdr);
597
598 if (fit_image_get_load (fit_hdr, fdt_noffset,
599 &load_start) == 0) {
600 load_end = load_start + size;
601
602 if ((load_start < image_end) &&
603 (load_end > image_start)) {
604 fdt_error ("FDT overwritten");
605 goto error;
606 }
607
608 printf (" Loading FDT from 0x%08lx to 0x%08lx\n",
609 (ulong)data, load_start);
610
611 memmove ((void *)load_start,
612 (void *)data, size);
613
614 fdt_blob = (char *)load_start;
615 } else {
616 fdt_blob = (char *)data;
617 }
618
619 images->fit_hdr_fdt = fit_hdr;
620 images->fit_uname_fdt = fit_uname_fdt;
Marian Balakowicz3dfe1102008-03-12 10:32:59 +0100621 images->fit_noffset_fdt = fdt_noffset;
Marian Balakowiczbc8ed482008-03-12 10:32:53 +0100622 break;
Marian Balakowicz4efbe9d2008-02-27 11:02:26 +0100623 } else
624#endif
625 {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100626 /*
627 * FDT blob
628 */
Marian Balakowiczde2b3212008-04-11 11:07:43 +0200629 fdt_blob = (char *)fdt_addr;
Marian Balakowicz4efbe9d2008-02-27 11:02:26 +0100630 debug ("* fdt: raw FDT blob\n");
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100631 printf ("## Flattened Device Tree blob at %08lx\n", fdt_blob);
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100632 }
633 break;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100634 default:
635 fdt_error ("Did not find a cmdline Flattened Device Tree");
Kumar Gala274cea22008-02-27 21:51:46 -0600636 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100637 }
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100638
639 printf (" Booting using the fdt blob at 0x%x\n", fdt_blob);
640
641 } else if (images->legacy_hdr_valid &&
Marian Balakowiczcb1c4892008-04-11 11:07:49 +0200642 image_check_type (&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100643
Marian Balakowicz7b325452008-01-31 13:58:20 +0100644 ulong fdt_data, fdt_len;
645
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100646 /*
647 * Now check if we have a legacy multi-component image,
648 * get second entry data start address and len.
649 */
Marian Balakowicz7b325452008-01-31 13:58:20 +0100650 printf ("## Flattened Device Tree from multi "
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100651 "component Image at %08lX\n",
652 (ulong)images->legacy_hdr_os);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100653
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100654 image_multi_getimg (images->legacy_hdr_os, 2, &fdt_data, &fdt_len);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100655 if (fdt_len) {
656
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100657 fdt_blob = (char *)fdt_data;
658 printf (" Booting using the fdt at 0x%x\n", fdt_blob);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100659
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100660 if (fdt_check_header (fdt_blob) != 0) {
Marian Balakowicz7b325452008-01-31 13:58:20 +0100661 fdt_error ("image is not a fdt");
Kumar Gala274cea22008-02-27 21:51:46 -0600662 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100663 }
664
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100665 if (be32_to_cpu (fdt_totalsize (fdt_blob)) != fdt_len) {
Marian Balakowicz7b325452008-01-31 13:58:20 +0100666 fdt_error ("fdt size != image size");
Kumar Gala274cea22008-02-27 21:51:46 -0600667 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100668 }
669 } else {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100670 fdt_error ("Did not find a Flattened Device Tree "
671 "in a legacy multi-component image");
Kumar Gala274cea22008-02-27 21:51:46 -0600672 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100673 }
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100674 } else {
675 debug ("## No Flattened Device Tree\n");
Kumar Gala274cea22008-02-27 21:51:46 -0600676 return 0;
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100677 }
678
679 *of_flat_tree = fdt_blob;
680 *of_size = be32_to_cpu (fdt_totalsize (fdt_blob));
681 debug (" of_flat_tree at 0x%08lx size 0x%08lx\n",
682 *of_flat_tree, *of_size);
Kumar Gala274cea22008-02-27 21:51:46 -0600683
684 return 0;
685
686error:
687 do_reset (cmdtp, flag, argc, argv);
688 return 1;
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100689}
690
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100691static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100692 cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
693 char **of_flat_tree, ulong *of_size)
694{
695 char *fdt_blob = *of_flat_tree;
696 ulong relocate = 0;
Kumar Galae822d7f2008-02-27 21:51:49 -0600697 ulong of_len = 0;
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100698
699 /* nothing to do */
700 if (*of_size == 0)
Kumar Galae822d7f2008-02-27 21:51:49 -0600701 return 0;
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100702
703 if (fdt_check_header (fdt_blob) != 0) {
704 fdt_error ("image is not a fdt");
Kumar Gala274cea22008-02-27 21:51:46 -0600705 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100706 }
707
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100708#ifndef CFG_NO_FLASH
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100709 /* move the blob if it is in flash (set relocate) */
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100710 if (addr2info ((ulong)fdt_blob) != NULL)
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100711 relocate = 1;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100712#endif
713
Marian Balakowicz7b325452008-01-31 13:58:20 +0100714 /*
715 * The blob must be within CFG_BOOTMAPSZ,
716 * so we flag it to be copied if it is not.
717 */
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100718 if (fdt_blob >= (char *)CFG_BOOTMAPSZ)
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100719 relocate = 1;
Kumar Galae822d7f2008-02-27 21:51:49 -0600720
Marian Balakowicz05e07b12008-02-29 22:22:46 +0100721 of_len = be32_to_cpu (fdt_totalsize (fdt_blob));
Marian Balakowicz7b325452008-01-31 13:58:20 +0100722
723 /* move flattend device tree if needed */
Marian Balakowiczd2ced9e2008-02-04 08:28:17 +0100724 if (relocate) {
Marian Balakowicz7b325452008-01-31 13:58:20 +0100725 int err;
Kumar Galae822d7f2008-02-27 21:51:49 -0600726 ulong of_start;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100727
728 /* position on a 4K boundary before the alloc_current */
Kumar Galae822d7f2008-02-27 21:51:49 -0600729 of_start = lmb_alloc_base(lmb, of_len, 0x1000,
730 (CFG_BOOTMAPSZ + bootmap_base));
731
732 if (of_start == 0) {
733 puts("device tree - allocation error\n");
734 goto error;
735 }
Marian Balakowicz7b325452008-01-31 13:58:20 +0100736
737 debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100738 (ulong)fdt_blob, (ulong)fdt_blob + of_len - 1,
Marian Balakowicz7b325452008-01-31 13:58:20 +0100739 of_len, of_len);
740
741 printf (" Loading Device Tree to %08lx, end %08lx ... ",
742 of_start, of_start + of_len - 1);
743
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100744 err = fdt_open_into (fdt_blob, (void *)of_start, of_len);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100745 if (err != 0) {
746 fdt_error ("fdt move failed");
Kumar Gala274cea22008-02-27 21:51:46 -0600747 goto error;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100748 }
749 puts ("OK\n");
750
751 *of_flat_tree = (char *)of_start;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100752 } else {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100753 *of_flat_tree = fdt_blob;
Kumar Galae822d7f2008-02-27 21:51:49 -0600754 lmb_reserve(lmb, (ulong)fdt, of_len);
Marian Balakowicz7b325452008-01-31 13:58:20 +0100755 }
756
Kumar Galae822d7f2008-02-27 21:51:49 -0600757 return 0;
Kumar Gala274cea22008-02-27 21:51:46 -0600758
759error:
Kumar Gala274cea22008-02-27 21:51:46 -0600760 return 1;
Marian Balakowicz7b325452008-01-31 13:58:20 +0100761}
Marian Balakowiczd3c5eb62008-01-31 13:20:08 +0100762#endif