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>
27 #ifdef CFG_HUSH_PARSER
32 #ifdef CONFIG_AUTO_UPDATE
34 #ifndef CONFIG_USB_OHCI
35 #error "must define CONFIG_USB_OHCI"
38 #ifndef CONFIG_USB_STORAGE
39 #error "must define CONFIG_USB_STORAGE"
42 #ifndef CFG_HUSH_PARSER
43 #error "must define CFG_HUSH_PARSER"
46 #if !(CONFIG_COMMANDS & CFG_CMD_FAT)
47 #error "must define CFG_CMD_FAT"
51 * Check whether a USB memory stick is plugged in.
53 * 1) if prepare.img ist found load it into memory. If it is
55 * 2) if preinst.img is found load it into memory. If it is
56 * valid then run it. Update the EEPROM.
57 * 3) if firmw_01.img is found load it into memory. If it is valid,
58 * burn it into FLASH and update the EEPROM.
59 * 4) if kernl_01.img is found load it into memory. If it is valid,
60 * burn it into FLASH and update the EEPROM.
61 * 5) if app.img is found load it into memory. If it is valid,
62 * burn it into FLASH and update the EEPROM.
63 * 6) if disk.img is found load it into memory. If it is valid,
64 * burn it into FLASH and update the EEPROM.
65 * 7) if postinst.img is found load it into memory. If it is
66 * valid then run it. Update the EEPROM.
73 #define debug(fmt,args...) printf (fmt ,##args)
75 #define debug(fmt,args...)
78 /* possible names of files on the USB stick. */
79 #define AU_FIRMWARE "u-boot.img"
80 #define AU_KERNEL "kernel.img"
87 /* layout of the FLASH. ST = start address, ND = end address. */
88 #define AU_FL_FIRMWARE_ST 0xfC000000
89 #define AU_FL_FIRMWARE_ND 0xfC03FFFF
90 #define AU_FL_KERNEL_ST 0xfC0C0000
91 #define AU_FL_KERNEL_ND 0xfC1BFFFF
93 static int au_usb_stor_curr_dev; /* current device */
95 /* index of each file in the following arrays */
96 #define IDX_FIRMWARE 0
99 /* max. number of files which could interest us */
100 #define AU_MAXFILES 2
102 /* pointers to file names */
103 char *aufile[AU_MAXFILES];
105 /* sizes of flash areas for each file */
106 long ausize[AU_MAXFILES];
108 /* array of flash areas start and end addresses */
109 struct flash_layout aufl_layout[AU_MAXFILES] = { \
110 {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \
111 {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \
114 /* where to load files into memory */
115 #define LOAD_ADDR ((unsigned char *)0x00200000)
117 /* the app is the largest image */
118 #define MAX_LOADSZ ausize[IDX_KERNEL]
120 /*i2c address of the keypad status*/
121 #define I2C_PSOC_KEYPAD_ADDR 0x53
126 #define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))&0xFF)
127 #define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))>>8)
130 extern int fat_register_device(block_dev_desc_t *, int);
131 extern int file_fat_detectfs(void);
132 extern long file_fat_read(const char *, void *, unsigned long);
133 extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int);
134 extern int flash_sect_erase(ulong, ulong);
135 extern int flash_sect_protect (int, ulong, ulong);
136 extern int flash_write (char *, ulong, ulong);
137 /* change char* to void* to shutup the compiler */
138 extern block_dev_desc_t *get_dev (char*, int);
139 extern int u_boot_hush_start(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;
166 unsigned char buf[4];
168 hdr = (image_header_t *)LOAD_ADDR;
169 /* check the easy ones first */
170 #undef CHECK_VALID_DEBUG
171 #ifdef CHECK_VALID_DEBUG
172 printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
173 printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
174 printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
175 printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
177 if (nbytes < sizeof(*hdr)) {
178 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]);
185 /* check the hdr CRC */
186 checksum = ntohl(hdr->ih_hcrc);
189 if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
190 printf ("Image %s bad header checksum\n", aufile[idx]);
193 hdr->ih_hcrc = htonl(checksum);
194 /* check the type - could do this all in one gigantic if() */
195 if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
196 printf ("Image %s wrong type\n", aufile[idx]);
199 if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
200 printf ("Image %s wrong type\n", aufile[idx]);
203 /* recycle checksum */
204 checksum = ntohl(hdr->ih_size);
205 /* for kernel and app the image header must also fit into flash */
206 if (idx != IDX_FIRMWARE)
207 checksum += sizeof(*hdr);
208 /* check the size does not exceed space in flash. HUSH scripts */
209 /* all have ausize[] set to 0 */
210 if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
211 printf ("Image %s is bigger than FLASH\n", aufile[idx]);
217 int au_do_update(int idx, long sz)
225 hdr = (image_header_t *)LOAD_ADDR;
227 /* execute a script */
228 if (hdr->ih_type == IH_TYPE_SCRIPT) {
229 addr = (char *)((char *)hdr + sizeof(*hdr));
230 /* stick a NULL at the end of the script, otherwise */
231 /* parse_string_outer() runs off the end. */
232 addr[ntohl(hdr->ih_size)] = 0;
234 parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
238 start = aufl_layout[idx].start;
239 end = aufl_layout[idx].end;
241 /* unprotect the address range */
242 /* this assumes that ONLY the firmware is protected! */
243 if (idx == IDX_FIRMWARE) {
244 #undef AU_UPDATE_TEST
245 #ifdef AU_UPDATE_TEST
246 /* erase it where Linux goes */
247 start = aufl_layout[1].start;
248 end = aufl_layout[1].end;
250 flash_sect_protect(0, start, end);
254 * erase the address range.
256 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
257 flash_sect_erase(start, end);
259 /* strip the header - except for the kernel and ramdisk */
260 if (hdr->ih_type == IH_TYPE_KERNEL) {
263 nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
265 addr = (char *)((char *)hdr + sizeof(*hdr));
266 #ifdef AU_UPDATE_TEST
267 /* copy it to where Linux goes */
268 if (idx == IDX_FIRMWARE)
269 start = aufl_layout[1].start;
272 nbytes = ntohl(hdr->ih_size);
275 /* copy the data from RAM to FLASH */
276 debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
277 rc = flash_write(addr, start, nbytes);
279 printf("Flashing failed due to error %d\n", rc);
283 /* check the dcrc of the copy */
284 if (crc32 (0, (uchar *)(start + off), ntohl(hdr->ih_size)) != ntohl(hdr->ih_dcrc)) {
285 printf ("Image %s Bad Data Checksum After COPY\n", aufile[idx]);
289 /* protect the address range */
290 /* this assumes that ONLY the firmware is protected! */
291 if (idx == IDX_FIRMWARE)
292 flash_sect_protect(1, start, end);
297 * this is called from board_init() after the hardware has been set up
298 * and is usable. That seems like a good time to do this.
299 * Right now the return value is ignored.
301 int do_auto_update(void)
303 block_dev_desc_t *stor_dev;
305 int i, res, bitmap_first, cnt, old_ctrlc, got_ctrlc;
308 char keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
313 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2);
315 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2);
320 if ( !(keypad_status1[0] & KEYPAD_MASK_HI) ||
321 (keypad_status1[0] != keypad_status2[0])) {
324 if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
325 (keypad_status1[1] != keypad_status2[1])) {
328 au_usb_stor_curr_dev = -1;
330 if (usb_stop() < 0) {
331 debug ("usb_stop failed\n");
334 if (usb_init() < 0) {
335 debug ("usb_init failed\n");
339 * check whether a storage device is attached (assume that it's
340 * a USB memory stick, since nothing else should be attached).
342 au_usb_stor_curr_dev = usb_stor_scan(0);
343 if (au_usb_stor_curr_dev == -1) {
344 debug ("No device found. Not initialized?\n");
347 /* check whether it has a partition table */
348 stor_dev = get_dev("usb", 0);
349 if (stor_dev == NULL) {
350 debug ("uknown device type\n");
353 if (fat_register_device(stor_dev, 1) != 0) {
354 debug ("Unable to use USB %d:%d for fatls\n",
355 au_usb_stor_curr_dev, 1);
358 if (file_fat_detectfs() != 0) {
359 debug ("file_fat_detectfs failed\n");
362 /* initialize the array of file names */
363 memset(aufile, 0, sizeof(aufile));
364 aufile[IDX_FIRMWARE] = AU_FIRMWARE;
365 aufile[IDX_KERNEL] = AU_KERNEL;
366 /* initialize the array of flash sizes */
367 memset(ausize, 0, sizeof(ausize));
368 ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST;
369 ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST;
371 * now check whether start and end are defined using environment
376 env = getenv("firmware_st");
378 start = simple_strtoul(env, NULL, 16);
379 env = getenv("firmware_nd");
381 end = simple_strtoul(env, NULL, 16);
382 if (start >= 0 && end && end > start) {
383 ausize[IDX_FIRMWARE] = (end + 1) - start;
384 aufl_layout[0].start = start;
385 aufl_layout[0].end = end;
389 env = getenv("kernel_st");
391 start = simple_strtoul(env, NULL, 16);
392 env = getenv("kernel_nd");
394 end = simple_strtoul(env, NULL, 16);
395 if (start >= 0 && end && end > start) {
396 ausize[IDX_KERNEL] = (end + 1) - start;
397 aufl_layout[1].start = start;
398 aufl_layout[1].end = end;
400 /* make certain that HUSH is runnable */
402 /* make sure that we see CTRL-C and save the old state */
403 old_ctrlc = disable_ctrlc(0);
406 /* just loop thru all the possible files */
407 for (i = 0; i < AU_MAXFILES; i++) {
408 /* just read the header */
409 sz = file_fat_read(aufile[i], LOAD_ADDR, sizeof(image_header_t));
410 debug ("read %s sz %ld hdr %d\n",
411 aufile[i], sz, sizeof(image_header_t));
412 if (sz <= 0 || sz < sizeof(image_header_t)) {
413 debug ("%s not found\n", aufile[i]);
416 if (au_check_header_valid(i, sz) < 0) {
417 debug ("%s header not valid\n", aufile[i]);
420 sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ);
421 debug ("read %s sz %ld hdr %d\n",
422 aufile[i], sz, sizeof(image_header_t));
423 if (sz <= 0 || sz <= sizeof(image_header_t)) {
424 debug ("%s not found\n", aufile[i]);
427 if (au_check_cksum_valid(i, sz) < 0) {
428 debug ("%s checksum not valid\n", aufile[i]);
431 /* this is really not a good idea, but it's what the */
432 /* customer wants. */
436 res = au_do_update(i, sz);
437 /* let the user break out of the loop */
438 if (ctrlc() || had_ctrlc()) {
446 } while (res < 0 && cnt < 3);
453 /* restore the old state */
454 disable_ctrlc(old_ctrlc);
457 #endif /* CONFIG_AUTO_UPDATE */