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efi_loader: replace find_smbios_table by library function
[thirdparty/u-boot.git] / cmd / load.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2000-2004
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 /*
8 * Serial up- and download support
9 */
10 #include <common.h>
11 #include <command.h>
12 #include <console.h>
13 #include <cpu_func.h>
14 #include <efi_loader.h>
15 #include <env.h>
16 #include <exports.h>
17 #ifdef CONFIG_MTD_NOR_FLASH
18 #include <flash.h>
19 #endif
20 #include <image.h>
21 #include <lmb.h>
22 #include <mapmem.h>
23 #include <net.h>
24 #include <s_record.h>
25 #include <serial.h>
26 #include <xyzModem.h>
27 #include <asm/cache.h>
28 #include <asm/global_data.h>
29 #include <linux/delay.h>
30
31 DECLARE_GLOBAL_DATA_PTR;
32
33 #if defined(CONFIG_CMD_LOADB)
34 static ulong load_serial_ymodem(ulong offset, int mode);
35 #endif
36
37 #if defined(CONFIG_CMD_LOADS)
38 static ulong load_serial(long offset);
39 static int read_record(char *buf, ulong len);
40 # if defined(CONFIG_CMD_SAVES)
41 static int save_serial(ulong offset, ulong size);
42 static int write_record(char *buf);
43 #endif
44
45 static int do_echo = 1;
46 #endif
47
48 /* -------------------------------------------------------------------- */
49
50 #if defined(CONFIG_CMD_LOADS)
51 static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
52 char *const argv[])
53 {
54 long offset = 0;
55 ulong addr;
56 int i;
57 char *env_echo;
58 int rcode = 0;
59 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
60 int load_baudrate, current_baudrate;
61
62 load_baudrate = current_baudrate = gd->baudrate;
63 #endif
64
65 env_echo = env_get("loads_echo");
66 if (env_echo && *env_echo == '1')
67 do_echo = 1;
68 else
69 do_echo = 0;
70
71 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
72 if (argc >= 2) {
73 offset = simple_strtol(argv[1], NULL, 16);
74 }
75 if (argc == 3) {
76 load_baudrate = (int)dectoul(argv[2], NULL);
77
78 /* default to current baudrate */
79 if (load_baudrate == 0)
80 load_baudrate = current_baudrate;
81 }
82 if (load_baudrate != current_baudrate) {
83 printf("## Switch baudrate to %d bps and press ENTER ...\n",
84 load_baudrate);
85 udelay(50000);
86 flush();
87 gd->baudrate = load_baudrate;
88 serial_setbrg();
89 udelay(50000);
90 for (;;) {
91 if (getchar() == '\r')
92 break;
93 }
94 }
95 #else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
96 if (argc == 2) {
97 offset = simple_strtol(argv[1], NULL, 16);
98 }
99 #endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
100
101 printf("## Ready for S-Record download ...\n");
102
103 addr = load_serial(offset);
104
105 /*
106 * Gather any trailing characters (for instance, the ^D which
107 * is sent by 'cu' after sending a file), and give the
108 * box some time (100 * 1 ms)
109 */
110 for (i=0; i<100; ++i) {
111 if (tstc()) {
112 getchar();
113 }
114 udelay(1000);
115 }
116
117 if (addr == ~0) {
118 printf("## S-Record download aborted\n");
119 rcode = 1;
120 } else {
121 printf("## Start Addr = 0x%08lX\n", addr);
122 image_load_addr = addr;
123 }
124
125 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
126 if (load_baudrate != current_baudrate) {
127 printf("## Switch baudrate to %d bps and press ESC ...\n",
128 current_baudrate);
129 udelay(50000);
130 flush();
131 gd->baudrate = current_baudrate;
132 serial_setbrg();
133 udelay(50000);
134 for (;;) {
135 if (getchar() == 0x1B) /* ESC */
136 break;
137 }
138 }
139 #endif
140 return rcode;
141 }
142
143 static ulong load_serial(long offset)
144 {
145 struct lmb lmb;
146 char record[SREC_MAXRECLEN + 1]; /* buffer for one S-Record */
147 char binbuf[SREC_MAXBINLEN]; /* buffer for binary data */
148 int binlen; /* no. of data bytes in S-Rec. */
149 int type; /* return code for record type */
150 ulong addr; /* load address from S-Record */
151 ulong size; /* number of bytes transferred */
152 ulong store_addr;
153 ulong start_addr = ~0;
154 ulong end_addr = 0;
155 int line_count = 0;
156 long ret;
157
158 lmb_init_and_reserve(&lmb, gd->bd, (void *)gd->fdt_blob);
159
160 while (read_record(record, SREC_MAXRECLEN + 1) >= 0) {
161 type = srec_decode(record, &binlen, &addr, binbuf);
162
163 if (type < 0) {
164 return (~0); /* Invalid S-Record */
165 }
166
167 switch (type) {
168 case SREC_DATA2:
169 case SREC_DATA3:
170 case SREC_DATA4:
171 store_addr = addr + offset;
172 #ifdef CONFIG_MTD_NOR_FLASH
173 if (addr2info(store_addr)) {
174 int rc;
175
176 rc = flash_write((char *)binbuf,store_addr,binlen);
177 if (rc != 0) {
178 flash_perror(rc);
179 return (~0);
180 }
181 } else
182 #endif
183 {
184 void *dst;
185
186 ret = lmb_reserve(&lmb, store_addr, binlen);
187 if (ret) {
188 printf("\nCannot overwrite reserved area (%08lx..%08lx)\n",
189 store_addr, store_addr + binlen);
190 return ret;
191 }
192 dst = map_sysmem(store_addr, binlen);
193 memcpy(dst, binbuf, binlen);
194 unmap_sysmem(dst);
195 lmb_free(&lmb, store_addr, binlen);
196 }
197 if ((store_addr) < start_addr)
198 start_addr = store_addr;
199 if ((store_addr + binlen - 1) > end_addr)
200 end_addr = store_addr + binlen - 1;
201 break;
202 case SREC_END2:
203 case SREC_END3:
204 case SREC_END4:
205 udelay(10000);
206 size = end_addr - start_addr + 1;
207 printf("\n"
208 "## First Load Addr = 0x%08lX\n"
209 "## Last Load Addr = 0x%08lX\n"
210 "## Total Size = 0x%08lX = %ld Bytes\n",
211 start_addr, end_addr, size, size
212 );
213 flush_cache(start_addr, size);
214 env_set_hex("filesize", size);
215 return (addr);
216 case SREC_START:
217 break;
218 default:
219 break;
220 }
221 if (!do_echo) { /* print a '.' every 100 lines */
222 if ((++line_count % 100) == 0)
223 putc('.');
224 }
225 }
226
227 return (~0); /* Download aborted */
228 }
229
230 static int read_record(char *buf, ulong len)
231 {
232 char *p;
233 int c;
234
235 --len; /* always leave room for terminating '\0' byte */
236
237 for (p=buf; p < buf+len; ++p) {
238 c = getchar(); /* read character */
239 if (do_echo)
240 putc(c); /* ... and echo it */
241
242 switch (c) {
243 case '\r':
244 case '\n':
245 *p = '\0';
246 return (p - buf);
247 case '\0':
248 case 0x03: /* ^C - Control C */
249 return (-1);
250 default:
251 *p = c;
252 }
253
254 /* Check for the console hangup (if any different from serial) */
255 if (gd->jt->getc != getchar) {
256 if (ctrlc())
257 return (-1);
258 }
259 }
260
261 /* line too long - truncate */
262 *p = '\0';
263 return (p - buf);
264 }
265
266 #if defined(CONFIG_CMD_SAVES)
267
268 int do_save_serial(struct cmd_tbl *cmdtp, int flag, int argc,
269 char *const argv[])
270 {
271 ulong offset = 0;
272 ulong size = 0;
273 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
274 int save_baudrate, current_baudrate;
275
276 save_baudrate = current_baudrate = gd->baudrate;
277 #endif
278
279 if (argc >= 2) {
280 offset = hextoul(argv[1], NULL);
281 }
282 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
283 if (argc >= 3) {
284 size = hextoul(argv[2], NULL);
285 }
286 if (argc == 4) {
287 save_baudrate = (int)dectoul(argv[3], NULL);
288
289 /* default to current baudrate */
290 if (save_baudrate == 0)
291 save_baudrate = current_baudrate;
292 }
293 if (save_baudrate != current_baudrate) {
294 printf("## Switch baudrate to %d bps and press ENTER ...\n",
295 save_baudrate);
296 udelay(50000);
297 gd->baudrate = save_baudrate;
298 serial_setbrg();
299 udelay(50000);
300 for (;;) {
301 if (getchar() == '\r')
302 break;
303 }
304 }
305 #else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
306 if (argc == 3) {
307 size = hextoul(argv[2], NULL);
308 }
309 #endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
310
311 printf("## Ready for S-Record upload, press ENTER to proceed ...\n");
312 for (;;) {
313 if (getchar() == '\r')
314 break;
315 }
316 if (save_serial(offset, size)) {
317 printf("## S-Record upload aborted\n");
318 } else {
319 printf("## S-Record upload complete\n");
320 }
321 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
322 if (save_baudrate != current_baudrate) {
323 printf("## Switch baudrate to %d bps and press ESC ...\n",
324 (int)current_baudrate);
325 udelay(50000);
326 flush();
327 gd->baudrate = current_baudrate;
328 serial_setbrg();
329 udelay(50000);
330 for (;;) {
331 if (getchar() == 0x1B) /* ESC */
332 break;
333 }
334 }
335 #endif
336 return 0;
337 }
338
339 #define SREC3_START "S0030000FC\n"
340 #define SREC3_FORMAT "S3%02X%08lX%s%02X\n"
341 #define SREC3_END "S70500000000FA\n"
342 #define SREC_BYTES_PER_RECORD 16
343
344 static int save_serial(ulong address, ulong count)
345 {
346 int i, c, reclen, checksum, length;
347 char *hex = "0123456789ABCDEF";
348 char record[2*SREC_BYTES_PER_RECORD+16]; /* buffer for one S-Record */
349 char data[2*SREC_BYTES_PER_RECORD+1]; /* buffer for hex data */
350
351 reclen = 0;
352 checksum = 0;
353
354 if(write_record(SREC3_START)) /* write the header */
355 return (-1);
356 do {
357 volatile uchar *src;
358
359 src = map_sysmem(address, count);
360 if (count) { /* collect hex data in the buffer */
361 c = src[reclen]; /* get one byte */
362 checksum += c; /* accumulate checksum */
363 data[2*reclen] = hex[(c>>4)&0x0f];
364 data[2*reclen+1] = hex[c & 0x0f];
365 data[2*reclen+2] = '\0';
366 ++reclen;
367 --count;
368 }
369 unmap_sysmem((void *)src);
370 if(reclen == SREC_BYTES_PER_RECORD || count == 0) {
371 /* enough data collected for one record: dump it */
372 if(reclen) { /* build & write a data record: */
373 /* address + data + checksum */
374 length = 4 + reclen + 1;
375
376 /* accumulate length bytes into checksum */
377 for(i = 0; i < 2; i++)
378 checksum += (length >> (8*i)) & 0xff;
379
380 /* accumulate address bytes into checksum: */
381 for(i = 0; i < 4; i++)
382 checksum += (address >> (8*i)) & 0xff;
383
384 /* make proper checksum byte: */
385 checksum = ~checksum & 0xff;
386
387 /* output one record: */
388 sprintf(record, SREC3_FORMAT, length, address, data, checksum);
389 if(write_record(record))
390 return (-1);
391 }
392 address += reclen; /* increment address */
393 checksum = 0;
394 reclen = 0;
395 }
396 }
397 while(count);
398 if(write_record(SREC3_END)) /* write the final record */
399 return (-1);
400 return(0);
401 }
402
403 static int write_record(char *buf)
404 {
405 char c;
406
407 while((c = *buf++))
408 putc(c);
409
410 /* Check for the console hangup (if any different from serial) */
411
412 if (ctrlc()) {
413 return (-1);
414 }
415 return (0);
416 }
417 # endif
418
419 #endif
420
421
422 #if defined(CONFIG_CMD_LOADB)
423 /*
424 * loadb command (load binary) included
425 */
426 #define XON_CHAR 17
427 #define XOFF_CHAR 19
428 #define START_CHAR 0x01
429 #define ETX_CHAR 0x03
430 #define END_CHAR 0x0D
431 #define SPACE 0x20
432 #define K_ESCAPE 0x23
433 #define SEND_TYPE 'S'
434 #define DATA_TYPE 'D'
435 #define ACK_TYPE 'Y'
436 #define NACK_TYPE 'N'
437 #define BREAK_TYPE 'B'
438 #define tochar(x) ((char) (((x) + SPACE) & 0xff))
439 #define untochar(x) ((int) (((x) - SPACE) & 0xff))
440
441 static void set_kerm_bin_mode(unsigned long *);
442 static int k_recv(void);
443 static ulong load_serial_bin(ulong offset);
444
445
446 static char his_eol; /* character he needs at end of packet */
447 static int his_pad_count; /* number of pad chars he needs */
448 static char his_pad_char; /* pad chars he needs */
449 static char his_quote; /* quote chars he'll use */
450
451 static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
452 char *const argv[])
453 {
454 ulong offset = 0;
455 ulong addr;
456 int load_baudrate, current_baudrate;
457 int rcode = 0;
458 char *s;
459
460 /* pre-set offset from CONFIG_SYS_LOAD_ADDR */
461 offset = CONFIG_SYS_LOAD_ADDR;
462
463 /* pre-set offset from $loadaddr */
464 s = env_get("loadaddr");
465 if (s)
466 offset = hextoul(s, NULL);
467
468 load_baudrate = current_baudrate = gd->baudrate;
469
470 if (argc >= 2) {
471 offset = hextoul(argv[1], NULL);
472 }
473 if (argc == 3) {
474 load_baudrate = (int)dectoul(argv[2], NULL);
475
476 /* default to current baudrate */
477 if (load_baudrate == 0)
478 load_baudrate = current_baudrate;
479 }
480
481 if (load_baudrate != current_baudrate) {
482 printf("## Switch baudrate to %d bps and press ENTER ...\n",
483 load_baudrate);
484 udelay(50000);
485 flush();
486 gd->baudrate = load_baudrate;
487 serial_setbrg();
488 udelay(50000);
489 for (;;) {
490 if (getchar() == '\r')
491 break;
492 }
493 }
494
495 if (strcmp(argv[0],"loady")==0) {
496 printf("## Ready for binary (ymodem) download "
497 "to 0x%08lX at %d bps...\n",
498 offset,
499 load_baudrate);
500
501 addr = load_serial_ymodem(offset, xyzModem_ymodem);
502
503 if (addr == ~0) {
504 image_load_addr = 0;
505 printf("## Binary (ymodem) download aborted\n");
506 rcode = 1;
507 } else {
508 printf("## Start Addr = 0x%08lX\n", addr);
509 image_load_addr = addr;
510 }
511 } else if (strcmp(argv[0],"loadx")==0) {
512 printf("## Ready for binary (xmodem) download "
513 "to 0x%08lX at %d bps...\n",
514 offset,
515 load_baudrate);
516
517 addr = load_serial_ymodem(offset, xyzModem_xmodem);
518
519 if (addr == ~0) {
520 image_load_addr = 0;
521 printf("## Binary (xmodem) download aborted\n");
522 rcode = 1;
523 } else {
524 printf("## Start Addr = 0x%08lX\n", addr);
525 image_load_addr = addr;
526 }
527 } else {
528
529 printf("## Ready for binary (kermit) download "
530 "to 0x%08lX at %d bps...\n",
531 offset,
532 load_baudrate);
533 addr = load_serial_bin(offset);
534
535 if (addr == ~0) {
536 image_load_addr = 0;
537 printf("## Binary (kermit) download aborted\n");
538 rcode = 1;
539 } else {
540 printf("## Start Addr = 0x%08lX\n", addr);
541 image_load_addr = addr;
542 }
543 }
544 if (load_baudrate != current_baudrate) {
545 printf("## Switch baudrate to %d bps and press ESC ...\n",
546 current_baudrate);
547 udelay(50000);
548 flush();
549 gd->baudrate = current_baudrate;
550 serial_setbrg();
551 udelay(50000);
552 for (;;) {
553 if (getchar() == 0x1B) /* ESC */
554 break;
555 }
556 }
557
558 return rcode;
559 }
560
561
562 static ulong load_serial_bin(ulong offset)
563 {
564 int size, i;
565
566 set_kerm_bin_mode((ulong *) offset);
567 size = k_recv();
568
569 /*
570 * Gather any trailing characters (for instance, the ^D which
571 * is sent by 'cu' after sending a file), and give the
572 * box some time (100 * 1 ms)
573 */
574 for (i=0; i<100; ++i) {
575 if (tstc()) {
576 getchar();
577 }
578 udelay(1000);
579 }
580
581 if (size == 0)
582 return ~0; /* Download aborted */
583
584 flush_cache(offset, size);
585
586 printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
587 env_set_hex("filesize", size);
588
589 return offset;
590 }
591
592 static void send_pad(void)
593 {
594 int count = his_pad_count;
595
596 while (count-- > 0)
597 putc(his_pad_char);
598 }
599
600 /* converts escaped kermit char to binary char */
601 static char ktrans(char in)
602 {
603 if ((in & 0x60) == 0x40) {
604 return (char) (in & ~0x40);
605 } else if ((in & 0x7f) == 0x3f) {
606 return (char) (in | 0x40);
607 } else
608 return in;
609 }
610
611 static int chk1(char *buffer)
612 {
613 int total = 0;
614
615 while (*buffer) {
616 total += *buffer++;
617 }
618 return (int) ((total + ((total >> 6) & 0x03)) & 0x3f);
619 }
620
621 static void s1_sendpacket(char *packet)
622 {
623 send_pad();
624 while (*packet) {
625 putc(*packet++);
626 }
627 }
628
629 static char a_b[24];
630 static void send_ack(int n)
631 {
632 a_b[0] = START_CHAR;
633 a_b[1] = tochar(3);
634 a_b[2] = tochar(n);
635 a_b[3] = ACK_TYPE;
636 a_b[4] = '\0';
637 a_b[4] = tochar(chk1(&a_b[1]));
638 a_b[5] = his_eol;
639 a_b[6] = '\0';
640 s1_sendpacket(a_b);
641 }
642
643 static void send_nack(int n)
644 {
645 a_b[0] = START_CHAR;
646 a_b[1] = tochar(3);
647 a_b[2] = tochar(n);
648 a_b[3] = NACK_TYPE;
649 a_b[4] = '\0';
650 a_b[4] = tochar(chk1(&a_b[1]));
651 a_b[5] = his_eol;
652 a_b[6] = '\0';
653 s1_sendpacket(a_b);
654 }
655
656
657 static void (*os_data_init)(void);
658 static void (*os_data_char)(char new_char);
659 static int os_data_state, os_data_state_saved;
660 static char *os_data_addr, *os_data_addr_saved;
661 static char *bin_start_address;
662
663 static void bin_data_init(void)
664 {
665 os_data_state = 0;
666 os_data_addr = bin_start_address;
667 }
668
669 static void os_data_save(void)
670 {
671 os_data_state_saved = os_data_state;
672 os_data_addr_saved = os_data_addr;
673 }
674
675 static void os_data_restore(void)
676 {
677 os_data_state = os_data_state_saved;
678 os_data_addr = os_data_addr_saved;
679 }
680
681 static void bin_data_char(char new_char)
682 {
683 switch (os_data_state) {
684 case 0: /* data */
685 *os_data_addr++ = new_char;
686 break;
687 }
688 }
689
690 static void set_kerm_bin_mode(unsigned long *addr)
691 {
692 bin_start_address = (char *) addr;
693 os_data_init = bin_data_init;
694 os_data_char = bin_data_char;
695 }
696
697
698 /* k_data_* simply handles the kermit escape translations */
699 static int k_data_escape, k_data_escape_saved;
700 static void k_data_init(void)
701 {
702 k_data_escape = 0;
703 os_data_init();
704 }
705
706 static void k_data_save(void)
707 {
708 k_data_escape_saved = k_data_escape;
709 os_data_save();
710 }
711
712 static void k_data_restore(void)
713 {
714 k_data_escape = k_data_escape_saved;
715 os_data_restore();
716 }
717
718 static void k_data_char(char new_char)
719 {
720 if (k_data_escape) {
721 /* last char was escape - translate this character */
722 os_data_char(ktrans(new_char));
723 k_data_escape = 0;
724 } else {
725 if (new_char == his_quote) {
726 /* this char is escape - remember */
727 k_data_escape = 1;
728 } else {
729 /* otherwise send this char as-is */
730 os_data_char(new_char);
731 }
732 }
733 }
734
735 #define SEND_DATA_SIZE 20
736 static char send_parms[SEND_DATA_SIZE];
737 static char *send_ptr;
738
739 /* handle_send_packet interprits the protocol info and builds and
740 sends an appropriate ack for what we can do */
741 static void handle_send_packet(int n)
742 {
743 int length = 3;
744 int bytes;
745
746 /* initialize some protocol parameters */
747 his_eol = END_CHAR; /* default end of line character */
748 his_pad_count = 0;
749 his_pad_char = '\0';
750 his_quote = K_ESCAPE;
751
752 /* ignore last character if it filled the buffer */
753 if (send_ptr == &send_parms[SEND_DATA_SIZE - 1])
754 --send_ptr;
755 bytes = send_ptr - send_parms; /* how many bytes we'll process */
756 do {
757 if (bytes-- <= 0)
758 break;
759 /* handle MAXL - max length */
760 /* ignore what he says - most I'll take (here) is 94 */
761 a_b[++length] = tochar(94);
762 if (bytes-- <= 0)
763 break;
764 /* handle TIME - time you should wait for my packets */
765 /* ignore what he says - don't wait for my ack longer than 1 second */
766 a_b[++length] = tochar(1);
767 if (bytes-- <= 0)
768 break;
769 /* handle NPAD - number of pad chars I need */
770 /* remember what he says - I need none */
771 his_pad_count = untochar(send_parms[2]);
772 a_b[++length] = tochar(0);
773 if (bytes-- <= 0)
774 break;
775 /* handle PADC - pad chars I need */
776 /* remember what he says - I need none */
777 his_pad_char = ktrans(send_parms[3]);
778 a_b[++length] = 0x40; /* He should ignore this */
779 if (bytes-- <= 0)
780 break;
781 /* handle EOL - end of line he needs */
782 /* remember what he says - I need CR */
783 his_eol = untochar(send_parms[4]);
784 a_b[++length] = tochar(END_CHAR);
785 if (bytes-- <= 0)
786 break;
787 /* handle QCTL - quote control char he'll use */
788 /* remember what he says - I'll use '#' */
789 his_quote = send_parms[5];
790 a_b[++length] = '#';
791 if (bytes-- <= 0)
792 break;
793 /* handle QBIN - 8-th bit prefixing */
794 /* ignore what he says - I refuse */
795 a_b[++length] = 'N';
796 if (bytes-- <= 0)
797 break;
798 /* handle CHKT - the clock check type */
799 /* ignore what he says - I do type 1 (for now) */
800 a_b[++length] = '1';
801 if (bytes-- <= 0)
802 break;
803 /* handle REPT - the repeat prefix */
804 /* ignore what he says - I refuse (for now) */
805 a_b[++length] = 'N';
806 if (bytes-- <= 0)
807 break;
808 /* handle CAPAS - the capabilities mask */
809 /* ignore what he says - I only do long packets - I don't do windows */
810 a_b[++length] = tochar(2); /* only long packets */
811 a_b[++length] = tochar(0); /* no windows */
812 a_b[++length] = tochar(94); /* large packet msb */
813 a_b[++length] = tochar(94); /* large packet lsb */
814 } while (0);
815
816 a_b[0] = START_CHAR;
817 a_b[1] = tochar(length);
818 a_b[2] = tochar(n);
819 a_b[3] = ACK_TYPE;
820 a_b[++length] = '\0';
821 a_b[length] = tochar(chk1(&a_b[1]));
822 a_b[++length] = his_eol;
823 a_b[++length] = '\0';
824 s1_sendpacket(a_b);
825 }
826
827 /* k_recv receives a OS Open image file over kermit line */
828 static int k_recv(void)
829 {
830 int new_char;
831 char k_state, k_state_saved;
832 int sum;
833 int done;
834 int length;
835 int n, last_n;
836 int len_lo, len_hi;
837
838 /* initialize some protocol parameters */
839 his_eol = END_CHAR; /* default end of line character */
840 his_pad_count = 0;
841 his_pad_char = '\0';
842 his_quote = K_ESCAPE;
843
844 /* initialize the k_recv and k_data state machine */
845 done = 0;
846 k_state = 0;
847 k_data_init();
848 k_state_saved = k_state;
849 k_data_save();
850 n = 0; /* just to get rid of a warning */
851 last_n = -1;
852
853 /* expect this "type" sequence (but don't check):
854 S: send initiate
855 F: file header
856 D: data (multiple)
857 Z: end of file
858 B: break transmission
859 */
860
861 /* enter main loop */
862 while (!done) {
863 /* set the send packet pointer to begining of send packet parms */
864 send_ptr = send_parms;
865
866 /* With each packet, start summing the bytes starting with the length.
867 Save the current sequence number.
868 Note the type of the packet.
869 If a character less than SPACE (0x20) is received - error.
870 */
871
872 #if 0
873 /* OLD CODE, Prior to checking sequence numbers */
874 /* first have all state machines save current states */
875 k_state_saved = k_state;
876 k_data_save ();
877 #endif
878
879 /* get a packet */
880 /* wait for the starting character or ^C */
881 for (;;) {
882 switch (getchar()) {
883 case START_CHAR: /* start packet */
884 goto START;
885 case ETX_CHAR: /* ^C waiting for packet */
886 return (0);
887 default:
888 ;
889 }
890 }
891 START:
892 /* get length of packet */
893 sum = 0;
894 new_char = getchar();
895 if ((new_char & 0xE0) == 0)
896 goto packet_error;
897 sum += new_char & 0xff;
898 length = untochar(new_char);
899 /* get sequence number */
900 new_char = getchar();
901 if ((new_char & 0xE0) == 0)
902 goto packet_error;
903 sum += new_char & 0xff;
904 n = untochar(new_char);
905 --length;
906
907 /* NEW CODE - check sequence numbers for retried packets */
908 /* Note - this new code assumes that the sequence number is correctly
909 * received. Handling an invalid sequence number adds another layer
910 * of complexity that may not be needed - yet! At this time, I'm hoping
911 * that I don't need to buffer the incoming data packets and can write
912 * the data into memory in real time.
913 */
914 if (n == last_n) {
915 /* same sequence number, restore the previous state */
916 k_state = k_state_saved;
917 k_data_restore();
918 } else {
919 /* new sequence number, checkpoint the download */
920 last_n = n;
921 k_state_saved = k_state;
922 k_data_save();
923 }
924 /* END NEW CODE */
925
926 /* get packet type */
927 new_char = getchar();
928 if ((new_char & 0xE0) == 0)
929 goto packet_error;
930 sum += new_char & 0xff;
931 k_state = new_char;
932 --length;
933 /* check for extended length */
934 if (length == -2) {
935 /* (length byte was 0, decremented twice) */
936 /* get the two length bytes */
937 new_char = getchar();
938 if ((new_char & 0xE0) == 0)
939 goto packet_error;
940 sum += new_char & 0xff;
941 len_hi = untochar(new_char);
942 new_char = getchar();
943 if ((new_char & 0xE0) == 0)
944 goto packet_error;
945 sum += new_char & 0xff;
946 len_lo = untochar(new_char);
947 length = len_hi * 95 + len_lo;
948 /* check header checksum */
949 new_char = getchar();
950 if ((new_char & 0xE0) == 0)
951 goto packet_error;
952 if (new_char != tochar((sum + ((sum >> 6) & 0x03)) & 0x3f))
953 goto packet_error;
954 sum += new_char & 0xff;
955 /* --length; */ /* new length includes only data and block check to come */
956 }
957 /* bring in rest of packet */
958 while (length > 1) {
959 new_char = getchar();
960 if ((new_char & 0xE0) == 0)
961 goto packet_error;
962 sum += new_char & 0xff;
963 --length;
964 if (k_state == DATA_TYPE) {
965 /* pass on the data if this is a data packet */
966 k_data_char (new_char);
967 } else if (k_state == SEND_TYPE) {
968 /* save send pack in buffer as is */
969 *send_ptr++ = new_char;
970 /* if too much data, back off the pointer */
971 if (send_ptr >= &send_parms[SEND_DATA_SIZE])
972 --send_ptr;
973 }
974 }
975 /* get and validate checksum character */
976 new_char = getchar();
977 if ((new_char & 0xE0) == 0)
978 goto packet_error;
979 if (new_char != tochar((sum + ((sum >> 6) & 0x03)) & 0x3f))
980 goto packet_error;
981 /* get END_CHAR */
982 new_char = getchar();
983 if (new_char != END_CHAR) {
984 packet_error:
985 /* restore state machines */
986 k_state = k_state_saved;
987 k_data_restore();
988 /* send a negative acknowledge packet in */
989 send_nack(n);
990 } else if (k_state == SEND_TYPE) {
991 /* crack the protocol parms, build an appropriate ack packet */
992 handle_send_packet(n);
993 } else {
994 /* send simple acknowledge packet in */
995 send_ack(n);
996 /* quit if end of transmission */
997 if (k_state == BREAK_TYPE)
998 done = 1;
999 }
1000 }
1001 return ((ulong) os_data_addr - (ulong) bin_start_address);
1002 }
1003
1004 static int getcxmodem(void) {
1005 if (tstc())
1006 return (getchar());
1007 return -1;
1008 }
1009 static ulong load_serial_ymodem(ulong offset, int mode)
1010 {
1011 int size;
1012 int err;
1013 int res;
1014 connection_info_t info;
1015 char ymodemBuf[1024];
1016 ulong store_addr = ~0;
1017 ulong addr = 0;
1018
1019 size = 0;
1020 info.mode = mode;
1021 res = xyzModem_stream_open(&info, &err);
1022 if (!res) {
1023
1024 err = 0;
1025 while ((res =
1026 xyzModem_stream_read(ymodemBuf, 1024, &err)) > 0) {
1027 store_addr = addr + offset;
1028 size += res;
1029 addr += res;
1030 #ifdef CONFIG_MTD_NOR_FLASH
1031 if (addr2info(store_addr)) {
1032 int rc;
1033
1034 rc = flash_write((char *) ymodemBuf,
1035 store_addr, res);
1036 if (rc != 0) {
1037 xyzModem_stream_terminate(true, &getcxmodem);
1038 xyzModem_stream_close(&err);
1039 printf("\n");
1040 flash_perror(rc);
1041 return (~0);
1042 }
1043 } else
1044 #endif
1045 {
1046 memcpy((char *)(store_addr), ymodemBuf,
1047 res);
1048 }
1049
1050 }
1051 if (err) {
1052 xyzModem_stream_terminate((err == xyzModem_cancel) ? false : true, &getcxmodem);
1053 xyzModem_stream_close(&err);
1054 printf("\n%s\n", xyzModem_error(err));
1055 return (~0); /* Download aborted */
1056 }
1057
1058 if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
1059 efi_set_bootdev("Uart", "", "",
1060 map_sysmem(offset, 0), size);
1061
1062 } else {
1063 printf("\n%s\n", xyzModem_error(err));
1064 return (~0); /* Download aborted */
1065 }
1066
1067 xyzModem_stream_terminate(false, &getcxmodem);
1068 xyzModem_stream_close(&err);
1069
1070
1071 flush_cache(offset, ALIGN(size, ARCH_DMA_MINALIGN));
1072
1073 printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
1074 env_set_hex("filesize", size);
1075
1076 return offset;
1077 }
1078
1079 #endif
1080
1081 #if defined(CONFIG_CMD_LOADM)
1082 static int do_load_memory_bin(struct cmd_tbl *cmdtp, int flag, int argc,
1083 char *const argv[])
1084 {
1085 ulong addr, dest, size;
1086 void *src, *dst;
1087
1088 if (argc != 4)
1089 return CMD_RET_USAGE;
1090
1091 addr = simple_strtoul(argv[1], NULL, 16);
1092
1093 dest = simple_strtoul(argv[2], NULL, 16);
1094
1095 size = simple_strtoul(argv[3], NULL, 16);
1096
1097 if (!size) {
1098 printf("loadm: can not load zero bytes\n");
1099 return 1;
1100 }
1101
1102 src = map_sysmem(addr, size);
1103 dst = map_sysmem(dest, size);
1104
1105 memcpy(dst, src, size);
1106
1107 unmap_sysmem(src);
1108 unmap_sysmem(dst);
1109
1110 if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
1111 efi_set_bootdev("Mem", "", "", map_sysmem(dest, 0), size);
1112
1113 printf("loaded bin to memory: size: %lu\n", size);
1114
1115 return 0;
1116 }
1117 #endif
1118
1119 /* -------------------------------------------------------------------- */
1120
1121 #if defined(CONFIG_CMD_LOADS)
1122
1123 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
1124 U_BOOT_CMD(
1125 loads, 3, 0, do_load_serial,
1126 "load S-Record file over serial line",
1127 "[ off ] [ baud ]\n"
1128 " - load S-Record file over serial line"
1129 " with offset 'off' and baudrate 'baud'"
1130 );
1131
1132 #else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
1133 U_BOOT_CMD(
1134 loads, 2, 0, do_load_serial,
1135 "load S-Record file over serial line",
1136 "[ off ]\n"
1137 " - load S-Record file over serial line with offset 'off'"
1138 );
1139 #endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
1140
1141 /*
1142 * SAVES always requires LOADS support, but not vice versa
1143 */
1144
1145
1146 #if defined(CONFIG_CMD_SAVES)
1147 #ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
1148 U_BOOT_CMD(
1149 saves, 4, 0, do_save_serial,
1150 "save S-Record file over serial line",
1151 "[ off ] [size] [ baud ]\n"
1152 " - save S-Record file over serial line"
1153 " with offset 'off', size 'size' and baudrate 'baud'"
1154 );
1155 #else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
1156 U_BOOT_CMD(
1157 saves, 3, 0, do_save_serial,
1158 "save S-Record file over serial line",
1159 "[ off ] [size]\n"
1160 " - save S-Record file over serial line with offset 'off' and size 'size'"
1161 );
1162 #endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
1163 #endif /* CONFIG_CMD_SAVES */
1164 #endif /* CONFIG_CMD_LOADS */
1165
1166
1167 #if defined(CONFIG_CMD_LOADB)
1168 U_BOOT_CMD(
1169 loadb, 3, 0, do_load_serial_bin,
1170 "load binary file over serial line (kermit mode)",
1171 "[ addr [ baud ] ]\n"
1172 " - load binary file over serial line"
1173 " at address 'addr' with baudrate 'baud'"
1174 );
1175
1176 U_BOOT_CMD(
1177 loadx, 3, 0, do_load_serial_bin,
1178 "load binary file over serial line (xmodem mode)",
1179 "[ addr [ baud ] ]\n"
1180 " - load binary file over serial line"
1181 " at address 'addr' with baudrate 'baud'"
1182 );
1183
1184 U_BOOT_CMD(
1185 loady, 3, 0, do_load_serial_bin,
1186 "load binary file over serial line (ymodem mode)",
1187 "[ addr [ baud ] ]\n"
1188 " - load binary file over serial line"
1189 " at address 'addr' with baudrate 'baud'"
1190 );
1191
1192 #endif /* CONFIG_CMD_LOADB */
1193
1194 #if defined(CONFIG_CMD_LOADM)
1195 U_BOOT_CMD(
1196 loadm, 4, 0, do_load_memory_bin,
1197 "load binary blob from source address to destination address",
1198 "[src_addr] [dst_addr] [size]\n"
1199 " - load a binary blob from one memory location to other"
1200 " from src_addr to dst_addr by size bytes"
1201 );
1202 #endif /* CONFIG_CMD_LOADM */
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