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, },
109 /* where to load files into memory */
110 #define LOAD_ADDR ((unsigned char *)0x00200000)
112 /* the root file system is the largest image */
113 #define MAX_LOADSZ ausize[IDX_ROOTFS]
115 /*i2c address of the keypad status*/
116 #define I2C_PSOC_KEYPAD_ADDR 0x53
121 #define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))&0xFF)
122 #define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))>>8)
125 extern int fat_register_device(block_dev_desc_t *, int);
126 extern int file_fat_detectfs(void);
127 extern long file_fat_read(const char *, void *, unsigned long);
128 extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int);
129 extern int flash_sect_erase(ulong, ulong);
130 extern int flash_sect_protect (int, ulong, ulong);
131 extern int flash_write (char *, ulong, ulong);
132 extern int u_boot_hush_start(void);
134 int au_check_cksum_valid(int idx, long nbytes)
137 unsigned long checksum;
139 hdr = (image_header_t *)LOAD_ADDR;
141 if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size))) {
142 printf ("Image %s bad total SIZE\n", aufile[idx]);
145 /* check the data CRC */
146 checksum = ntohl(hdr->ih_dcrc);
148 if (crc32 (0, (uchar *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size)) != checksum) {
149 printf ("Image %s bad data checksum\n", aufile[idx]);
155 int au_check_header_valid(int idx, long nbytes)
158 unsigned long checksum;
160 hdr = (image_header_t *)LOAD_ADDR;
161 /* check the easy ones first */
162 #undef CHECK_VALID_DEBUG
163 #ifdef CHECK_VALID_DEBUG
164 printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
165 printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
166 printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
167 printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
169 if (nbytes < sizeof(*hdr)) {
170 printf ("Image %s bad header SIZE\n", aufile[idx]);
173 if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC) {
174 printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]);
177 /* check the hdr CRC */
178 checksum = ntohl(hdr->ih_hcrc);
181 if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
182 printf ("Image %s bad header checksum\n", aufile[idx]);
185 hdr->ih_hcrc = htonl(checksum);
186 /* check the type - could do this all in one gigantic if() */
187 if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
188 printf ("Image %s wrong type\n", aufile[idx]);
191 if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
192 printf ("Image %s wrong type\n", aufile[idx]);
195 if ((idx == IDX_ROOTFS) &&
196 ( (hdr->ih_type != IH_TYPE_RAMDISK) || (hdr->ih_type != IH_TYPE_FILESYSTEM) )
198 printf ("Image %s wrong type\n", aufile[idx]);
201 /* recycle checksum */
202 checksum = ntohl(hdr->ih_size);
203 /* for kernel and app the image header must also fit into flash */
204 if (idx != IDX_FIRMWARE)
205 checksum += sizeof(*hdr);
206 /* check the size does not exceed space in flash. HUSH scripts */
207 /* all have ausize[] set to 0 */
208 if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
209 printf ("Image %s is bigger than FLASH\n", aufile[idx]);
215 int au_do_update(int idx, long sz)
223 hdr = (image_header_t *)LOAD_ADDR;
225 /* execute a script */
226 if (hdr->ih_type == IH_TYPE_SCRIPT) {
227 addr = (char *)((char *)hdr + sizeof(*hdr));
228 /* stick a NULL at the end of the script, otherwise */
229 /* parse_string_outer() runs off the end. */
230 addr[ntohl(hdr->ih_size)] = 0;
232 parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
236 start = aufl_layout[idx].start;
237 end = aufl_layout[idx].end;
239 /* unprotect the address range */
240 /* this assumes that ONLY the firmware is protected! */
241 if (idx == IDX_FIRMWARE) {
242 #undef AU_UPDATE_TEST
243 #ifdef AU_UPDATE_TEST
244 /* erase it where Linux goes */
245 start = aufl_layout[1].start;
246 end = aufl_layout[1].end;
248 flash_sect_protect(0, start, end);
252 * erase the address range.
254 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
255 flash_sect_erase(start, end);
257 /* strip the header - except for the kernel and ramdisk */
258 if (hdr->ih_type == IH_TYPE_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK) {
261 nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
263 addr = (char *)((char *)hdr + sizeof(*hdr));
264 #ifdef AU_UPDATE_TEST
265 /* copy it to where Linux goes */
266 if (idx == IDX_FIRMWARE)
267 start = aufl_layout[1].start;
270 nbytes = ntohl(hdr->ih_size);
273 /* copy the data from RAM to FLASH */
274 debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
275 rc = flash_write(addr, start, nbytes);
277 printf("Flashing failed due to error %d\n", rc);
281 /* check the data CRC of the copy */
282 if (crc32 (0, (uchar *)(start + off), ntohl(hdr->ih_size)) != ntohl(hdr->ih_dcrc)) {
283 printf ("Image %s Bad Data Checksum after COPY\n", aufile[idx]);
287 /* protect the address range */
288 /* this assumes that ONLY the firmware is protected! */
289 if (idx == IDX_FIRMWARE)
290 flash_sect_protect(1, start, end);
295 * this is called from board_init() after the hardware has been set up
296 * and is usable. That seems like a good time to do this.
297 * Right now the return value is ignored.
299 int do_auto_update(void)
301 block_dev_desc_t *stor_dev;
303 int i, res, bitmap_first, cnt, old_ctrlc, got_ctrlc;
306 uchar keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
311 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2);
313 i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2);
318 if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
319 (keypad_status1[1] != keypad_status2[1])) {
322 au_usb_stor_curr_dev = -1;
324 if (usb_stop() < 0) {
325 debug ("usb_stop failed\n");
328 if (usb_init() < 0) {
329 debug ("usb_init failed\n");
333 * check whether a storage device is attached (assume that it's
334 * a USB memory stick, since nothing else should be attached).
336 au_usb_stor_curr_dev = usb_stor_scan(0);
337 if (au_usb_stor_curr_dev == -1) {
338 debug ("No device found. Not initialized?\n");
341 /* check whether it has a partition table */
342 stor_dev = get_dev("usb", 0);
343 if (stor_dev == NULL) {
344 debug ("uknown device type\n");
347 if (fat_register_device(stor_dev, 1) != 0) {
348 debug ("Unable to use USB %d:%d for fatls\n",
349 au_usb_stor_curr_dev, 1);
352 if (file_fat_detectfs() != 0) {
353 debug ("file_fat_detectfs failed\n");
357 * now check whether start and end are defined using environment
362 env = getenv("firmware_st");
364 start = simple_strtoul(env, NULL, 16);
365 env = getenv("firmware_nd");
367 end = simple_strtoul(env, NULL, 16);
368 if (start >= 0 && end && end > start) {
369 ausize[IDX_FIRMWARE] = (end + 1) - start;
370 aufl_layout[IDX_FIRMWARE].start = start;
371 aufl_layout[IDX_FIRMWARE].end = end;
375 env = getenv("kernel_st");
377 start = simple_strtoul(env, NULL, 16);
378 env = getenv("kernel_nd");
380 end = simple_strtoul(env, NULL, 16);
381 if (start >= 0 && end && end > start) {
382 ausize[IDX_KERNEL] = (end + 1) - start;
383 aufl_layout[IDX_KERNEL].start = start;
384 aufl_layout[IDX_KERNEL].end = end;
388 env = getenv("rootfs_st");
390 start = simple_strtoul(env, NULL, 16);
391 env = getenv("rootfs_nd");
393 end = simple_strtoul(env, NULL, 16);
394 if (start >= 0 && end && end > start) {
395 ausize[IDX_ROOTFS] = (end + 1) - start;
396 aufl_layout[IDX_ROOTFS].start = start;
397 aufl_layout[IDX_ROOTFS].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 < (AU_MAXFILES + 1));
447 if (cnt < (AU_MAXFILES + 1))
453 /* restore the old state */
454 disable_ctrlc(old_ctrlc);
457 #endif /* CONFIG_AUTO_UPDATE */