u-boot/tools/kwboot.c

205 /* ARM code to change baudrate */
262 				/*  ; Read old baudrate value                 */
270 				/*  ; Read new baudrate value                 */
324 				/*  ; Placeholder for old baudrate value      */
328 				/*  ; Placeholder for new baudrate value      */
335 /* ARM code from binary header executed by BootROM before changing baudrate */
582 kwboot_tty_baudrate_to_speed(int baudrate)
584 	switch (baudrate) {
738 kwboot_tty_change_baudrate(int fd, int baudrate)
748 	speed = kwboot_tty_baudrate_to_speed(baudrate);
756 		tio.c_ospeed = tio.c_ispeed = baudrate;
780 	 * Check whether set baudrate is within 3% tolerance.
784 	if (!_is_within_tolerance(tio.c_ospeed, baudrate, 3))
787 	if (!_is_within_tolerance(tio.c_ispeed, baudrate, 3))
794 	fprintf(stderr, "Could not set baudrate to requested value\n");
800 kwboot_open_tty(const char *path, int baudrate)
833 	rc = kwboot_tty_change_baudrate(fd, baudrate);
1213 kwboot_baud_magic_handle(int fd, char c, int baudrate)
1230 		kwboot_printv("\nChanging baudrate to %d Bd\n", baudrate);
1232 		return kwboot_tty_change_baudrate(fd, baudrate) ? : 1;
1242 		     int baudrate, int *baud_changed)
1273 		 * - print the byte, if it is not part of baudrate change magic
1274 		 *   sequence while baudrate change was requested (-B option)
1275 		 * - change baudrate
1281 			if (baudrate && !*baud_changed) {
1282 				rc = kwboot_baud_magic_handle(fd, *c, baudrate);
1289 			} else if (!baudrate || !*baud_changed) {
1310 		    int *done_print, int baudrate, int allow_retries)
1335 					  baudrate, &baud_changed);
1350 	if (allow_non_xm && baudrate && !baud_changed) {
1390 		  size_t size, int baudrate)
1435 					 &done_print, baudrate, header);
1456 kwboot_xmodem(int tty, const void *_img, size_t size, int baudrate)
1476 	rc = kwboot_xmodem_one(tty, &pnum, 1, img, hdrsz, baudrate);
1496 	if (baudrate) {
1497 		kwboot_printv("\nChanging baudrate back to 115200 Bd\n\n");
2043 kwboot_img_patch(void *img, size_t *size, int baudrate)
2159 			 * baudrate (which should be 115200) and do not touch
2172 	if (baudrate) {
2175 				"Cannot inject code for changing baudrate into v0 image header\n");
2181 				"Cannot inject code for changing baudrate into image with secure header\n");
2186 		 * First inject code that changes the baudrate from the default
2191 		kwboot_printv("Injecting binary header code for changing baudrate to %d Bd\n",
2192 			      baudrate);
2193 		_inject_baudrate_change_code(img, size, 0, 115200, baudrate);
2196 		 * Now inject code that changes the baudrate back to 115200 Bd.
2201 		kwboot_printv("Injecting code for changing baudrate back\n");
2202 		_inject_baudrate_change_code(img, size, 1, baudrate, 115200);
2289 	int baudrate;
2302 	baudrate = 115200;
2364 			baudrate = atoi(optarg);
2391 	/* boot and debug message use baudrate 115200 */
2392 	if (((bootmsg && !imgpath) || debugmsg) && baudrate != 115200) {
2397 	tty = kwboot_open_tty(ttypath, baudrate);
2404 	 * initial baudrate for image transfer is always 115200,
2405 	 * the change to different baudrate is done only after the header is sent
2407 	if (imgpath && baudrate != 115200) {
2415 	if (baudrate == 115200)
2416 		/* do not change baudrate during Xmodem to the same value */
2417 		baudrate = 0;
2419 		/* ensure we have enough space for baudrate change code */
2437 		rc = kwboot_img_patch(img, &size, baudrate);
2455 		rc = kwboot_xmodem(tty, img, size, baudrate);