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,
27 #ifndef CFG_NAND_LEGACY
28 #error CFG_NAND_LEGACY not defined in a file using the legacy NAND support!
33 #include <asm/byteorder.h>
34 #include <linux/mtd/nand_legacy.h>
37 #include "auto_update.h"
39 #ifdef CONFIG_AUTO_UPDATE
41 #if !(CONFIG_COMMANDS & CFG_CMD_FAT)
42 #error "must define CFG_CMD_FAT"
45 extern au_image_t au_image[];
46 extern int N_AU_IMAGES;
53 #define debug(fmt,args...) printf (fmt ,##args)
55 #define debug(fmt,args...)
59 #define LOAD_ADDR ((unsigned char *)0x100000) /* where to load files into memory */
60 #define MAX_LOADSZ 0x1e00000
63 extern int fat_register_device(block_dev_desc_t *, int);
64 extern int file_fat_detectfs(void);
65 extern long file_fat_read(const char *, void *, unsigned long);
66 long do_fat_read (const char *filename, void *buffer, unsigned long maxsize, int dols);
68 extern int trab_vfd (ulong);
69 extern int transfer_pic(unsigned char, unsigned char *, int, int);
71 extern int flash_sect_erase(ulong, ulong);
72 extern int flash_sect_protect (int, ulong, ulong);
73 extern int flash_write (char *, ulong, ulong);
74 /* change char* to void* to shutup the compiler */
75 extern block_dev_desc_t *get_dev (char*, int);
77 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
78 /* references to names in cmd_nand.c */
79 #define NANDRW_READ 0x01
80 #define NANDRW_WRITE 0x00
81 #define NANDRW_JFFS2 0x02
82 #define NANDRW_JFFS2_SKIP 0x04
83 extern struct nand_chip nand_dev_desc[];
84 extern int nand_legacy_rw(struct nand_chip* nand, int cmd, size_t start, size_t len,
85 size_t * retlen, u_char * buf);
86 extern int nand_legacy_erase(struct nand_chip* nand, size_t ofs, size_t len, int clean);
87 #endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
89 extern block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
92 int au_check_cksum_valid(int i, long nbytes)
95 unsigned long checksum;
97 hdr = (image_header_t *)LOAD_ADDR;
99 if ((au_image[i].type == AU_FIRMWARE) && (au_image[i].size != ntohl(hdr->ih_size))) {
100 printf ("Image %s has wrong size\n", au_image[i].name);
104 if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size))) {
105 printf ("Image %s bad total SIZE\n", au_image[i].name);
108 /* check the data CRC */
109 checksum = ntohl(hdr->ih_dcrc);
111 if (crc32 (0, (uchar *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size))
113 printf ("Image %s bad data checksum\n", au_image[i].name);
120 int au_check_header_valid(int i, long nbytes)
123 unsigned long checksum;
125 hdr = (image_header_t *)LOAD_ADDR;
126 /* check the easy ones first */
127 #undef CHECK_VALID_DEBUG
128 #ifdef CHECK_VALID_DEBUG
129 printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
130 printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_PPC);
131 printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
132 printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
134 if (nbytes < sizeof(*hdr))
136 printf ("Image %s bad header SIZE\n", au_image[i].name);
139 if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC)
141 printf ("Image %s bad MAGIC or ARCH\n", au_image[i].name);
144 /* check the hdr CRC */
145 checksum = ntohl(hdr->ih_hcrc);
148 if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
149 printf ("Image %s bad header checksum\n", au_image[i].name);
152 hdr->ih_hcrc = htonl(checksum);
154 /* check the type - could do this all in one gigantic if() */
155 if ((au_image[i].type == AU_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
156 printf ("Image %s wrong type\n", au_image[i].name);
159 if ((au_image[i].type == AU_SCRIPT) && (hdr->ih_type != IH_TYPE_SCRIPT)) {
160 printf ("Image %s wrong type\n", au_image[i].name);
164 /* recycle checksum */
165 checksum = ntohl(hdr->ih_size);
167 #if 0 /* test-only */
168 /* for kernel and app the image header must also fit into flash */
170 checksum += sizeof(*hdr);
171 /* check the size does not exceed space in flash. HUSH scripts */
172 /* all have ausize[] set to 0 */
173 if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
174 printf ("Image %s is bigger than FLASH\n", au_image[i].name);
183 int au_do_update(int i, long sz)
191 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
195 hdr = (image_header_t *)LOAD_ADDR;
197 switch (au_image[i].type) {
199 printf("Executing script %s\n", au_image[i].name);
201 /* execute a script */
202 if (hdr->ih_type == IH_TYPE_SCRIPT) {
203 addr = (char *)((char *)hdr + sizeof(*hdr));
204 /* stick a NULL at the end of the script, otherwise */
205 /* parse_string_outer() runs off the end. */
206 addr[ntohl(hdr->ih_size)] = 0;
210 * Replace cr/lf with ;
213 while (addr[k] != 0) {
214 if ((addr[k] == 10) || (addr[k] == 13)) {
220 run_command(addr, 0);
229 start = au_image[i].start;
230 end = au_image[i].start + au_image[i].size - 1;
233 * do not update firmware when image is already in flash.
235 if (au_image[i].type == AU_FIRMWARE) {
236 char *orig = (char*)start;
237 char *new = (char *)((char *)hdr + sizeof(*hdr));
238 nbytes = ntohl(hdr->ih_size);
241 if (*orig++ != *new++) {
246 printf("Skipping firmware update - images are identical\n");
251 /* unprotect the address range */
252 /* this assumes that ONLY the firmware is protected! */
253 if (au_image[i].type == AU_FIRMWARE) {
254 flash_sect_protect(0, start, end);
258 * erase the address range.
260 if (au_image[i].type != AU_NAND) {
261 printf("Updating NOR FLASH with image %s\n", au_image[i].name);
262 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
263 flash_sect_erase(start, end);
265 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
266 printf("Updating NAND FLASH with image %s\n", au_image[i].name);
267 debug ("nand_legacy_erase(%lx, %lx);\n", start, end);
268 rc = nand_legacy_erase (nand_dev_desc, start, end - start + 1, 0);
269 debug ("nand_legacy_erase returned %x\n", rc);
275 /* strip the header - except for the kernel and ramdisk */
276 if (au_image[i].type != AU_FIRMWARE) {
279 nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
281 addr = (char *)((char *)hdr + sizeof(*hdr));
283 nbytes = ntohl(hdr->ih_size);
287 * copy the data from RAM to FLASH
289 if (au_image[i].type != AU_NAND) {
290 debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
291 rc = flash_write((char *)addr, start, nbytes);
293 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
294 debug ("nand_legacy_rw(%p, %lx %x)\n", addr, start, nbytes);
295 rc = nand_legacy_rw(nand_dev_desc, NANDRW_WRITE | NANDRW_JFFS2,
296 start, nbytes, (size_t *)&total, (uchar *)addr);
297 debug ("nand_legacy_rw: ret=%x total=%d nbytes=%d\n", rc, total, nbytes);
301 printf("Flashing failed due to error %d\n", rc);
306 * check the dcrc of the copy
308 if (au_image[i].type != AU_NAND) {
309 rc = crc32 (0, (uchar *)(start + off), ntohl(hdr->ih_size));
311 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
312 rc = nand_legacy_rw(nand_dev_desc, NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP,
313 start, nbytes, (size_t *)&total, (uchar *)addr);
314 rc = crc32 (0, (uchar *)(addr + off), ntohl(hdr->ih_size));
317 if (rc != ntohl(hdr->ih_dcrc)) {
318 printf ("Image %s Bad Data Checksum After COPY\n", au_image[i].name);
322 /* protect the address range */
323 /* this assumes that ONLY the firmware is protected! */
324 if (au_image[i].type == AU_FIRMWARE) {
325 flash_sect_protect(1, start, end);
331 printf("Wrong image type selected!\n");
338 static void process_macros (const char *input, char *output)
341 const char *varname_start = NULL;
342 int inputcnt = strlen (input);
343 int outputcnt = CFG_CBSIZE;
344 int state = 0; /* 0 = waiting for '$' */
345 /* 1 = waiting for '(' or '{' */
346 /* 2 = waiting for ')' or '}' */
347 /* 3 = waiting for ''' */
349 char *output_start = output;
351 printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen(input), input);
354 prev = '\0'; /* previous character */
356 while (inputcnt && outputcnt) {
361 /* remove one level of escape characters */
362 if ((c == '\\') && (prev != '\\')) {
371 case 0: /* Waiting for (unescaped) $ */
372 if ((c == '\'') && (prev != '\\')) {
376 if ((c == '$') && (prev != '\\')) {
383 case 1: /* Waiting for ( */
384 if (c == '(' || c == '{') {
386 varname_start = input;
398 case 2: /* Waiting for ) */
399 if (c == ')' || c == '}') {
401 char envname[CFG_CBSIZE], *envval;
402 int envcnt = input-varname_start-1; /* Varname # of chars */
404 /* Get the varname */
405 for (i = 0; i < envcnt; i++) {
406 envname[i] = varname_start[i];
411 envval = getenv (envname);
413 /* Copy into the line if it exists */
415 while ((*envval) && outputcnt) {
416 *(output++) = *(envval++);
419 /* Look for another '$' */
423 case 3: /* Waiting for ' */
424 if ((c == '\'') && (prev != '\\')) {
439 printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
440 strlen(output_start), output_start);
446 * this is called from board_init() after the hardware has been set up
447 * and is usable. That seems like a good time to do this.
448 * Right now the return value is ignored.
450 int do_auto_update(void)
452 block_dev_desc_t *stor_dev;
454 int i, res, cnt, old_ctrlc, got_ctrlc;
459 * Check whether a CompactFlash is inserted
461 if (ide_dev_desc[0].type == DEV_TYPE_UNKNOWN) {
462 return -1; /* no disk detected! */
465 /* check whether it has a partition table */
466 stor_dev = get_dev("ide", 0);
467 if (stor_dev == NULL) {
468 debug ("Uknown device type\n");
471 if (fat_register_device(stor_dev, 1) != 0) {
472 debug ("Unable to register ide disk 0:1 for fatls\n");
477 * Check if magic file is present
479 if (do_fat_read(AU_MAGIC_FILE, buffer, sizeof(buffer), LS_NO) <= 0) {
483 #ifdef CONFIG_AUTO_UPDATE_SHOW
484 board_auto_update_show(1);
486 puts("\nAutoUpdate Disk detected! Trying to update system...\n");
488 /* make sure that we see CTRL-C and save the old state */
489 old_ctrlc = disable_ctrlc(0);
491 /* just loop thru all the possible files */
492 for (i = 0; i < N_AU_IMAGES; i++) {
494 * Try to expand the environment var in the fname
496 process_macros(au_image[i].name, str);
497 strcpy(au_image[i].name, str);
499 printf("Reading %s ...", au_image[i].name);
500 /* just read the header */
501 sz = do_fat_read(au_image[i].name, LOAD_ADDR, sizeof(image_header_t), LS_NO);
502 debug ("read %s sz %ld hdr %d\n",
503 au_image[i].name, sz, sizeof(image_header_t));
504 if (sz <= 0 || sz < sizeof(image_header_t)) {
505 puts(" not found\n");
508 if (au_check_header_valid(i, sz) < 0) {
509 puts(" header not valid\n");
512 sz = do_fat_read(au_image[i].name, LOAD_ADDR, MAX_LOADSZ, LS_NO);
513 debug ("read %s sz %ld hdr %d\n",
514 au_image[i].name, sz, sizeof(image_header_t));
515 if (sz <= 0 || sz <= sizeof(image_header_t)) {
516 puts(" not found\n");
519 if (au_check_cksum_valid(i, sz) < 0) {
520 puts(" checksum not valid\n");
526 res = au_do_update(i, sz);
527 /* let the user break out of the loop */
528 if (ctrlc() || had_ctrlc()) {
538 /* restore the old state */
539 disable_ctrlc(old_ctrlc);
541 puts("AutoUpdate finished\n\n");
542 #ifdef CONFIG_AUTO_UPDATE_SHOW
543 board_auto_update_show(0);
550 int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
557 autoupd, 1, 1, auto_update,
558 "autoupd - Automatically update images\n",
561 #endif /* CONFIG_AUTO_UPDATE */