2 * (C) Copyright 2003-2004
3 * Gary Jennejohn, DENX Software Engineering, gj@denx.de.
4 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/byteorder.h>
30 #if defined(CFG_NAND_LEGACY)
31 #include <linux/mtd/nand_legacy.h>
36 #include "auto_update.h"
38 #ifdef CONFIG_AUTO_UPDATE
40 #if !defined(CONFIG_CMD_FAT)
41 #error "must define CONFIG_CMD_FAT"
44 extern au_image_t au_image[];
45 extern int N_AU_IMAGES;
47 /* where to load files into memory */
48 #define LOAD_ADDR ((unsigned char *)0x100000)
49 #define MAX_LOADSZ 0x1c00000
52 extern int fat_register_device(block_dev_desc_t *, int);
53 extern int file_fat_detectfs(void);
54 extern long file_fat_read(const char *, void *, unsigned long);
55 long do_fat_read (const char *filename, void *buffer,
56 unsigned long maxsize, int dols);
57 extern int flash_sect_erase(ulong, ulong);
58 extern int flash_sect_protect (int, ulong, ulong);
59 extern int flash_write (char *, ulong, ulong);
61 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
62 /* references to names in cmd_nand.c */
63 #define NANDRW_READ 0x01
64 #define NANDRW_WRITE 0x00
65 #define NANDRW_JFFS2 0x02
66 #define NANDRW_JFFS2_SKIP 0x04
67 extern struct nand_chip nand_dev_desc[];
68 extern int nand_legacy_rw(struct nand_chip* nand, int cmd,
69 size_t start, size_t len,
70 size_t * retlen, u_char * buf);
71 extern int nand_legacy_erase(struct nand_chip* nand, size_t ofs,
72 size_t len, int clean);
75 extern block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
77 int au_check_cksum_valid(int i, long nbytes)
81 hdr = (image_header_t *)LOAD_ADDR;
82 #if defined(CONFIG_FIT)
83 if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) {
84 puts ("Non legacy image format not supported\n");
89 if ((au_image[i].type == AU_FIRMWARE) &&
90 (au_image[i].size != image_get_data_size (hdr))) {
91 printf ("Image %s has wrong size\n", au_image[i].name);
95 if (nbytes != (image_get_image_size (hdr))) {
96 printf ("Image %s bad total SIZE\n", au_image[i].name);
100 /* check the data CRC */
101 if (!image_check_dcrc (hdr)) {
102 printf ("Image %s bad data checksum\n", au_image[i].name);
108 int au_check_header_valid(int i, long nbytes)
111 unsigned long checksum;
113 hdr = (image_header_t *)LOAD_ADDR;
114 #if defined(CONFIG_FIT)
115 if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) {
116 puts ("Non legacy image format not supported\n");
121 /* check the easy ones first */
122 if (nbytes < image_get_header_size ()) {
123 printf ("Image %s bad header SIZE\n", au_image[i].name);
126 if (!image_check_magic (hdr) || !image_check_arch (hdr, IH_ARCH_PPC)) {
127 printf ("Image %s bad MAGIC or ARCH\n", au_image[i].name);
130 if (!image_check_hcrc (hdr)) {
131 printf ("Image %s bad header checksum\n", au_image[i].name);
135 /* check the type - could do this all in one gigantic if() */
136 if (((au_image[i].type & AU_TYPEMASK) == AU_FIRMWARE) &&
137 !image_check_type (hdr, IH_TYPE_FIRMWARE)) {
138 printf ("Image %s wrong type\n", au_image[i].name);
141 if (((au_image[i].type & AU_TYPEMASK) == AU_SCRIPT) &&
142 !image_check_type (hdr, IH_TYPE_SCRIPT)) {
143 printf ("Image %s wrong type\n", au_image[i].name);
147 /* recycle checksum */
148 checksum = image_get_data_size (hdr);
153 int au_do_update(int i, long sz)
161 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
165 hdr = (image_header_t *)LOAD_ADDR;
166 #if defined(CONFIG_FIT)
167 if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) {
168 puts ("Non legacy image format not supported\n");
173 switch (au_image[i].type & AU_TYPEMASK) {
175 printf("Executing script %s\n", au_image[i].name);
177 /* execute a script */
178 if (image_check_type (hdr, IH_TYPE_SCRIPT)) {
179 addr = (char *)((char *)hdr + image_get_header_size ());
180 /* stick a NULL at the end of the script, otherwise */
181 /* parse_string_outer() runs off the end. */
182 addr[image_get_data_size (hdr)] = 0;
186 * Replace cr/lf with ;
189 while (addr[k] != 0) {
190 if ((addr[k] == 10) || (addr[k] == 13)) {
196 run_command(addr, 0);
205 start = au_image[i].start;
206 end = au_image[i].start + au_image[i].size - 1;
209 * do not update firmware when image is already in flash.
211 if (au_image[i].type == AU_FIRMWARE) {
212 char *orig = (char*)start;
213 char *new = (char *)((char *)hdr +
214 image_get_header_size ());
215 nbytes = image_get_data_size (hdr);
218 if (*orig++ != *new++) {
223 printf ("Skipping firmware update - "
224 "images are identical\n");
229 /* unprotect the address range */
230 if (((au_image[i].type & AU_FLAGMASK) == AU_PROTECT) ||
231 (au_image[i].type == AU_FIRMWARE)) {
232 flash_sect_protect (0, start, end);
236 * erase the address range.
238 if (au_image[i].type != AU_NAND) {
239 printf ("Updating NOR FLASH with image %s\n",
241 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
242 flash_sect_erase (start, end);
244 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
245 printf ("Updating NAND FLASH with image %s\n",
247 debug ("nand_legacy_erase(%lx, %lx);\n", start, end);
248 rc = nand_legacy_erase (nand_dev_desc, start,
250 debug ("nand_legacy_erase returned %x\n", rc);
256 /* strip the header - except for the kernel and ramdisk */
257 if (au_image[i].type != AU_FIRMWARE) {
259 off = image_get_header_size ();
260 nbytes = image_get_image_size (hdr);
262 addr = (char *)((char *)hdr + image_get_header_size ());
264 nbytes = image_get_data_size (hdr);
268 * copy the data from RAM to FLASH
270 if (au_image[i].type != AU_NAND) {
271 debug ("flash_write(%p, %lx, %x)\n",
272 addr, start, nbytes);
273 rc = flash_write ((char *)addr, start,
276 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
277 debug ("nand_legacy_rw(%p, %lx, %x)\n",
278 addr, start, nbytes);
279 rc = nand_legacy_rw (nand_dev_desc,
280 NANDRW_WRITE | NANDRW_JFFS2,
281 start, nbytes, (size_t *)&total,
283 debug ("nand_legacy_rw: ret=%x total=%d nbytes=%d\n",
290 printf ("Flashing failed due to error %d\n", rc);
295 * check the dcrc of the copy
297 if (au_image[i].type != AU_NAND) {
298 rc = crc32 (0, (uchar *)(start + off),
299 image_get_data_size (hdr));
301 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
302 rc = nand_legacy_rw (nand_dev_desc,
303 NANDRW_READ | NANDRW_JFFS2 |
305 start, nbytes, (size_t *)&total,
307 rc = crc32 (0, (uchar *)(addr + off),
308 image_get_data_size (hdr));
311 if (rc != image_get_dcrc (hdr)) {
312 printf ("Image %s Bad Data Checksum After COPY\n",
317 /* protect the address range */
318 /* this assumes that ONLY the firmware is protected! */
319 if (((au_image[i].type & AU_FLAGMASK) == AU_PROTECT) ||
320 (au_image[i].type == AU_FIRMWARE)) {
321 flash_sect_protect (1, start, end);
327 printf("Wrong image type selected!\n");
333 static void process_macros (const char *input, char *output)
336 const char *varname_start = NULL;
337 int inputcnt = strlen (input);
338 int outputcnt = CFG_CBSIZE;
339 int state = 0; /* 0 = waiting for '$' */
340 /* 1 = waiting for '(' or '{' */
341 /* 2 = waiting for ')' or '}' */
342 /* 3 = waiting for ''' */
344 char *output_start = output;
346 printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n",
347 strlen(input), input);
350 prev = '\0'; /* previous character */
352 while (inputcnt && outputcnt) {
357 /* remove one level of escape characters */
358 if ((c == '\\') && (prev != '\\')) {
367 case 0: /* Waiting for (unescaped) $ */
368 if ((c == '\'') && (prev != '\\')) {
372 if ((c == '$') && (prev != '\\')) {
379 case 1: /* Waiting for ( */
380 if (c == '(' || c == '{') {
382 varname_start = input;
394 case 2: /* Waiting for ) */
395 if (c == ')' || c == '}') {
397 char envname[CFG_CBSIZE], *envval;
398 /* Varname # of chars */
399 int envcnt = input - varname_start - 1;
401 /* Get the varname */
402 for (i = 0; i < envcnt; i++) {
403 envname[i] = varname_start[i];
408 envval = getenv (envname);
410 /* Copy into the line if it exists */
412 while ((*envval) && outputcnt) {
413 *(output++) = *(envval++);
416 /* Look for another '$' */
420 case 3: /* Waiting for ' */
421 if ((c == '\'') && (prev != '\\')) {
436 printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
437 strlen (output_start), output_start);
442 * this is called from board_init() after the hardware has been set up
443 * and is usable. That seems like a good time to do this.
444 * Right now the return value is ignored.
446 int do_auto_update(void)
448 block_dev_desc_t *stor_dev = NULL;
450 int i, res, cnt, old_ctrlc, got_ctrlc;
455 if (ide_dev_desc[0].type != DEV_TYPE_UNKNOWN) {
456 stor_dev = get_dev ("ide", 0);
457 if (stor_dev == NULL) {
458 debug ("ide: unknown device\n");
463 if (fat_register_device (stor_dev, 1) != 0) {
464 debug ("Unable to register ide disk 0:1\n");
469 * Check if magic file is present
471 if ((n = do_fat_read (AU_MAGIC_FILE, buffer,
472 sizeof(buffer), LS_NO)) <= 0) {
473 debug ("No auto_update magic file (n=%d)\n", n);
477 #ifdef CONFIG_AUTO_UPDATE_SHOW
478 board_auto_update_show (1);
480 puts("\nAutoUpdate Disk detected! Trying to update system...\n");
482 /* make sure that we see CTRL-C and save the old state */
483 old_ctrlc = disable_ctrlc (0);
485 /* just loop thru all the possible files */
486 for (i = 0; i < N_AU_IMAGES; i++) {
488 * Try to expand the environment var in the fname
490 process_macros (au_image[i].name, str);
491 strcpy (au_image[i].name, str);
493 printf("Reading %s ...", au_image[i].name);
494 /* just read the header */
495 sz = do_fat_read (au_image[i].name, LOAD_ADDR,
496 image_get_header_size (), LS_NO);
497 debug ("read %s sz %ld hdr %d\n",
498 au_image[i].name, sz, image_get_header_size ());
499 if (sz <= 0 || sz < image_get_header_size ()) {
500 puts(" not found\n");
503 if (au_check_header_valid (i, sz) < 0) {
504 puts(" header not valid\n");
507 sz = do_fat_read (au_image[i].name, LOAD_ADDR,
509 debug ("read %s sz %ld hdr %d\n",
510 au_image[i].name, sz, image_get_header_size ());
511 if (sz <= 0 || sz <= image_get_header_size ()) {
512 puts(" not found\n");
515 if (au_check_cksum_valid (i, sz) < 0) {
516 puts(" checksum not valid\n");
522 res = au_do_update (i, sz);
523 /* let the user break out of the loop */
524 if (ctrlc() || had_ctrlc ()) {
534 /* restore the old state */
535 disable_ctrlc (old_ctrlc);
537 puts("AutoUpdate finished\n\n");
538 #ifdef CONFIG_AUTO_UPDATE_SHOW
539 board_auto_update_show (0);
545 int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
552 autoupd, 1, 1, auto_update,
553 "autoupd - Automatically update images\n",
556 #endif /* CONFIG_AUTO_UPDATE */