3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #include <asm/byteorder.h>
28 #ifdef CFG_HUSH_PARSER
33 #ifdef CONFIG_AUTO_UPDATE
35 #ifndef CONFIG_USB_OHCI
36 #error "must define CONFIG_USB_OHCI"
39 #ifndef CONFIG_USB_STORAGE
40 #error "must define CONFIG_USB_STORAGE"
43 #ifndef CFG_HUSH_PARSER
44 #error "must define CFG_HUSH_PARSER"
47 #if !(CONFIG_COMMANDS & CFG_CMD_FAT)
48 #error "must define CFG_CMD_FAT"
55 #define debug(fmt,args...) printf (fmt ,##args)
57 #define debug(fmt,args...)
60 /* possible names of files on the USB stick. */
61 #define AU_FIRMWARE "u-boot.img"
62 #define AU_KERNEL "kernel.img"
63 #define AU_ROOTFS "rootfs.img"
70 /* layout of the FLASH. ST = start address, ND = end address. */
71 #define AU_FL_FIRMWARE_ST 0xfC000000
72 #define AU_FL_FIRMWARE_ND 0xfC03FFFF
73 #define AU_FL_KERNEL_ST 0xfC0C0000
74 #define AU_FL_KERNEL_ND 0xfC1BFFFF
75 #define AU_FL_ROOTFS_ST 0xFC1C0000
76 #define AU_FL_ROOTFS_ND 0xFCFBFFFF
78 static int au_usb_stor_curr_dev; /* current device */
80 /* index of each file in the following arrays */
81 #define IDX_FIRMWARE 0
85 /* max. number of files which could interest us */
88 /* pointers to file names */
89 char *aufile[AU_MAXFILES] = {
95 /* sizes of flash areas for each file */
96 long ausize[AU_MAXFILES] = {
97 (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST,
98 (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST,
99 (AU_FL_ROOTFS_ND + 1) - AU_FL_ROOTFS_ST,
102 /* array of flash areas start and end addresses */
103 struct flash_layout aufl_layout[AU_MAXFILES] = {
104 { AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND, },
105 { AU_FL_KERNEL_ST, AU_FL_KERNEL_ND, },
106 { AU_FL_ROOTFS_ST, AU_FL_ROOTFS_ND, },
111 /* where to load files into memory */
112 #define LOAD_ADDR ((unsigned char *)0x00200000)
114 /* the root file system is the largest image */
115 #define MAX_LOADSZ ausize[IDX_ROOTFS]
117 /*i2c address of the keypad status*/
118 #define I2C_PSOC_KEYPAD_ADDR 0x53
123 #define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))&0xFF)
124 #define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))>>8)
127 extern int fat_register_device(block_dev_desc_t *, int);
128 extern int file_fat_detectfs(void);
129 extern long file_fat_read(const char *, void *, unsigned long);
130 extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int);
131 extern int flash_sect_erase(ulong, ulong);
132 extern int flash_sect_protect (int, ulong, ulong);
133 extern int flash_write (char *, ulong, ulong);
134 extern int u_boot_hush_start(void);
135 #ifdef CONFIG_PROGRESSBAR
136 extern void show_progress(int, int);
137 extern void lcd_puts (char *);
138 extern void lcd_enable(void);
141 int au_check_cksum_valid(int idx, long nbytes)
144 unsigned long checksum;
146 hdr = (image_header_t *)LOAD_ADDR;
148 if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size))) {
149 printf ("Image %s bad total SIZE\n", aufile[idx]);
152 /* check the data CRC */
153 checksum = ntohl(hdr->ih_dcrc);
155 if (crc32 (0, (uchar *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size)) != checksum) {
156 printf ("Image %s bad data checksum\n", aufile[idx]);
162 int au_check_header_valid(int idx, long nbytes)
165 unsigned long checksum, fsize;
167 hdr = (image_header_t *)LOAD_ADDR;
168 /* check the easy ones first */
169 #undef CHECK_VALID_DEBUG
170 #ifdef CHECK_VALID_DEBUG
171 printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
172 printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
173 printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
174 printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
176 if (nbytes < sizeof(*hdr)) {
177 printf ("Image %s bad header SIZE\n", aufile[idx]);
181 if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC) {
182 printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]);
186 /* check the hdr CRC */
187 checksum = ntohl(hdr->ih_hcrc);
190 if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
191 printf ("Image %s bad header checksum\n", aufile[idx]);
195 hdr->ih_hcrc = htonl(checksum);
196 /* check the type - could do this all in one gigantic if() */
197 if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
198 printf ("Image %s wrong type\n", aufile[idx]);
202 if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
203 printf ("Image %s wrong type\n", aufile[idx]);
207 if ((idx == IDX_ROOTFS) &&
208 ( (hdr->ih_type != IH_TYPE_RAMDISK) && (hdr->ih_type != IH_TYPE_FILESYSTEM) )
210 printf ("Image %s wrong type\n", aufile[idx]);
214 /* recycle checksum */
215 checksum = ntohl(hdr->ih_size);
217 fsize = checksum + sizeof(*hdr);
218 /* for kernel and ramdisk the image header must also fit into flash */
219 if (idx == IDX_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK)
220 checksum += sizeof(*hdr);
222 /* check the size does not exceed space in flash. HUSH scripts */
223 if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
224 printf ("Image %s is bigger than FLASH\n", aufile[idx]);
228 /* Update with the real filesize */
231 return checksum; /* return size to be written to flash */
234 int au_do_update(int idx, long sz)
242 hdr = (image_header_t *)LOAD_ADDR;
244 /* execute a script */
245 if (hdr->ih_type == IH_TYPE_SCRIPT) {
246 addr = (char *)((char *)hdr + sizeof(*hdr));
247 /* stick a NULL at the end of the script, otherwise */
248 /* parse_string_outer() runs off the end. */
249 addr[ntohl(hdr->ih_size)] = 0;
251 parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
255 start = aufl_layout[idx].start;
256 end = aufl_layout[idx].end;
258 /* unprotect the address range */
259 /* this assumes that ONLY the firmware is protected! */
260 if (idx == IDX_FIRMWARE) {
261 #undef AU_UPDATE_TEST
262 #ifdef AU_UPDATE_TEST
263 /* erase it where Linux goes */
264 start = aufl_layout[1].start;
265 end = aufl_layout[1].end;
267 flash_sect_protect(0, start, end);
271 * erase the address range.
273 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
274 flash_sect_erase(start, end);
276 #ifdef CONFIG_PROGRESSBAR
277 show_progress(end - start, totsize);
280 /* strip the header - except for the kernel and ramdisk */
281 if (hdr->ih_type == IH_TYPE_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK) {
284 nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
286 addr = (char *)((char *)hdr + sizeof(*hdr));
287 #ifdef AU_UPDATE_TEST
288 /* copy it to where Linux goes */
289 if (idx == IDX_FIRMWARE)
290 start = aufl_layout[1].start;
293 nbytes = ntohl(hdr->ih_size);
296 /* copy the data from RAM to FLASH */
297 debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
298 rc = flash_write(addr, start, nbytes);
300 printf("Flashing failed due to error %d\n", rc);
304 #ifdef CONFIG_PROGRESSBAR
305 show_progress(nbytes, totsize);
308 /* check the data CRC of the copy */
309 if (crc32 (0, (uchar *)(start + off), ntohl(hdr->ih_size)) != ntohl(hdr->ih_dcrc)) {
310 printf ("Image %s Bad Data Checksum after COPY\n", aufile[idx]);
314 /* protect the address range */
315 /* this assumes that ONLY the firmware is protected! */
316 if (idx == IDX_FIRMWARE)
317 flash_sect_protect(1, start, end);
322 * this is called from board_init() after the hardware has been set up
323 * and is usable. That seems like a good time to do this.
324 * Right now the return value is ignored.
326 int do_auto_update(void)
328 block_dev_desc_t *stor_dev;
330 int i, res = 0, bitmap_first, cnt, old_ctrlc, got_ctrlc;
333 uchar keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
338 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2);
340 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2);
345 if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
346 (keypad_status1[1] != keypad_status2[1])) {
350 au_usb_stor_curr_dev = -1;
352 if (usb_stop() < 0) {
353 debug ("usb_stop failed\n");
356 if (usb_init() < 0) {
357 debug ("usb_init failed\n");
361 * check whether a storage device is attached (assume that it's
362 * a USB memory stick, since nothing else should be attached).
364 au_usb_stor_curr_dev = usb_stor_scan(0);
365 if (au_usb_stor_curr_dev == -1) {
366 debug ("No device found. Not initialized?\n");
369 /* check whether it has a partition table */
370 stor_dev = get_dev("usb", 0);
371 if (stor_dev == NULL) {
372 debug ("uknown device type\n");
375 if (fat_register_device(stor_dev, 1) != 0) {
376 debug ("Unable to use USB %d:%d for fatls\n",
377 au_usb_stor_curr_dev, 1);
380 if (file_fat_detectfs() != 0) {
381 debug ("file_fat_detectfs failed\n");
385 * now check whether start and end are defined using environment
390 env = getenv("firmware_st");
392 start = simple_strtoul(env, NULL, 16);
393 env = getenv("firmware_nd");
395 end = simple_strtoul(env, NULL, 16);
396 if (start >= 0 && end && end > start) {
397 ausize[IDX_FIRMWARE] = (end + 1) - start;
398 aufl_layout[IDX_FIRMWARE].start = start;
399 aufl_layout[IDX_FIRMWARE].end = end;
403 env = getenv("kernel_st");
405 start = simple_strtoul(env, NULL, 16);
406 env = getenv("kernel_nd");
408 end = simple_strtoul(env, NULL, 16);
409 if (start >= 0 && end && end > start) {
410 ausize[IDX_KERNEL] = (end + 1) - start;
411 aufl_layout[IDX_KERNEL].start = start;
412 aufl_layout[IDX_KERNEL].end = end;
416 env = getenv("rootfs_st");
418 start = simple_strtoul(env, NULL, 16);
419 env = getenv("rootfs_nd");
421 end = simple_strtoul(env, NULL, 16);
422 if (start >= 0 && end && end > start) {
423 ausize[IDX_ROOTFS] = (end + 1) - start;
424 aufl_layout[IDX_ROOTFS].start = start;
425 aufl_layout[IDX_ROOTFS].end = end;
428 /* make certain that HUSH is runnable */
430 /* make sure that we see CTRL-C and save the old state */
431 old_ctrlc = disable_ctrlc(0);
435 /* validate the images first */
436 for (i = 0; i < AU_MAXFILES; i++) {
438 /* just read the header */
439 sz = file_fat_read(aufile[i], LOAD_ADDR, sizeof(image_header_t));
440 debug ("read %s sz %ld hdr %d\n",
441 aufile[i], sz, sizeof(image_header_t));
442 if (sz <= 0 || sz < sizeof(image_header_t)) {
443 debug ("%s not found\n", aufile[i]);
447 /* au_check_header_valid() updates ausize[] */
448 if ((imsize = au_check_header_valid(i, sz)) < 0) {
449 debug ("%s header not valid\n", aufile[i]);
452 /* totsize accounts for image size and flash erase size */
453 totsize += (imsize + (aufl_layout[i].end - aufl_layout[i].start));
456 #ifdef CONFIG_PROGRESSBAR
458 lcd_puts(" Update in progress\n");
463 /* just loop thru all the possible files */
464 for (i = 0; i < AU_MAXFILES && totsize; i++) {
468 sz = file_fat_read(aufile[i], LOAD_ADDR, ausize[i]);
470 debug ("read %s sz %ld hdr %d\n",
471 aufile[i], sz, sizeof(image_header_t));
473 if (sz != ausize[i]) {
474 printf ("%s: size %d read %d?\n", aufile[i], ausize[i], sz);
478 if (sz <= 0 || sz <= sizeof(image_header_t)) {
479 debug ("%s not found\n", aufile[i]);
482 if (au_check_cksum_valid(i, sz) < 0) {
483 debug ("%s checksum not valid\n", aufile[i]);
486 /* this is really not a good idea, but it's what the */
487 /* customer wants. */
491 res = au_do_update(i, sz);
492 /* let the user break out of the loop */
493 if (ctrlc() || had_ctrlc()) {
501 } while (res < 0 && cnt < (AU_MAXFILES + 1));
502 if (cnt < (AU_MAXFILES + 1))
508 /* restore the old state */
509 disable_ctrlc(old_ctrlc);
510 #ifdef CONFIG_PROGRESSBAR
513 lcd_puts("\n Update completed\n");
515 lcd_puts("\n Update error\n");
522 #endif /* CONFIG_AUTO_UPDATE */