2 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 * SPDX-License-Identifier: GPL-2.0+
10 #ifndef CONFIG_ENV_ADDR
11 #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
14 flash_info_t flash_info
[CONFIG_SYS_MAX_FLASH_BANKS
];
16 /*-----------------------------------------------------------------------
19 static int write_word(flash_info_t
*info
, ulong dest
, ulong data
);
22 static int my_in_8(unsigned char *addr
);
23 static void my_out_8(unsigned char *addr
, int val
);
25 #ifdef CONFIG_BOOT_16B
26 static int my_in_be16(unsigned short *addr
);
27 static void my_out_be16(unsigned short *addr
, int val
);
29 #ifdef CONFIG_BOOT_32B
30 static unsigned my_in_be32(unsigned *addr
);
31 static void my_out_be32(unsigned *addr
, int val
);
33 /*-----------------------------------------------------------------------
36 unsigned long flash_init(void)
38 volatile immap_t
*immap
= (immap_t
*) CONFIG_SYS_IMMR
;
39 volatile memctl8xx_t
*memctl
= &immap
->im_memctl
;
40 unsigned long size_b0
, size_b1
;
45 /* Init: no FLASHes known */
46 for (i
= 0; i
< CONFIG_SYS_MAX_FLASH_BANKS
; ++i
)
47 flash_info
[i
].flash_id
= FLASH_UNKNOWN
;
49 #ifdef CONFIG_SYS_DOC_BASE
50 #ifndef CONFIG_FEL8xx_AT
52 memctl
->memc_or5
= (0xffff8000 | CONFIG_SYS_OR_TIMING_DOC
);
53 memctl
->memc_br5
= CONFIG_SYS_DOC_BASE
| 0x401;
56 memctl
->memc_or3
= (0xffff8000 | CONFIG_SYS_OR_TIMING_DOC
);
57 memctl
->memc_br3
= CONFIG_SYS_DOC_BASE
| 0x401;
60 #if defined(CONFIG_BOOT_8B)
61 size_b0
= 0x80000; /* 512 K */
63 flash_info
[0].flash_id
= FLASH_MAN_AMD
| FLASH_AM040
;
64 flash_info
[0].sector_count
= 8;
65 flash_info
[0].size
= 0x00080000;
67 /* set up sector start address table */
68 for (i
= 0; i
< flash_info
[0].sector_count
; i
++)
69 flash_info
[0].start
[i
] = 0x40000000 + (i
* 0x10000);
71 /* protect all sectors */
72 for (i
= 0; i
< flash_info
[0].sector_count
; i
++)
73 flash_info
[0].protect
[i
] = 0x1;
75 #elif defined(CONFIG_BOOT_16B)
76 size_b0
= 0x400000; /* 4MB , assume AMD29LV320B */
78 flash_info
[0].flash_id
= FLASH_MAN_AMD
| FLASH_AM320B
;
79 flash_info
[0].sector_count
= 67;
80 flash_info
[0].size
= 0x00400000;
82 /* set up sector start address table */
83 flash_info
[0].start
[0] = 0x40000000;
84 flash_info
[0].start
[1] = 0x40000000 + 0x4000;
85 flash_info
[0].start
[2] = 0x40000000 + 0x6000;
86 flash_info
[0].start
[3] = 0x40000000 + 0x8000;
88 for (i
= 4; i
< flash_info
[0].sector_count
; i
++) {
89 flash_info
[0].start
[i
] =
90 0x40000000 + 0x10000 + ((i
- 4) * 0x10000);
93 /* protect all sectors */
94 for (i
= 0; i
< flash_info
[0].sector_count
; i
++)
95 flash_info
[0].protect
[i
] = 0x1;
98 #ifdef CONFIG_BOOT_32B
100 /* Static FLASH Bank configuration here - FIXME XXX */
101 size_b0
= flash_get_size((vu_long
*) FLASH_BASE0_PRELIM
,
104 if (flash_info
[0].flash_id
== FLASH_UNKNOWN
) {
105 printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
106 size_b0
, size_b0
<< 20);
109 size_b1
= flash_get_size((vu_long
*) FLASH_BASE1_PRELIM
,
112 if (size_b1
> size_b0
) {
114 "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
115 size_b1
, size_b1
<< 20, size_b0
, size_b0
<< 20);
116 flash_info
[0].flash_id
= FLASH_UNKNOWN
;
117 flash_info
[1].flash_id
= FLASH_UNKNOWN
;
118 flash_info
[0].sector_count
= -1;
119 flash_info
[1].sector_count
= -1;
120 flash_info
[0].size
= 0;
121 flash_info
[1].size
= 0;
126 /* Remap FLASH according to real size */
127 memctl
->memc_or0
= CONFIG_SYS_OR_TIMING_FLASH
|
128 (-size_b0
& OR_AM_MSK
);
129 memctl
->memc_br0
= (CONFIG_SYS_FLASH_BASE
& BR_BA_MSK
) |
132 /* Re-do sizing to get full correct info */
133 size_b0
= flash_get_size((vu_long
*) CONFIG_SYS_FLASH_BASE
,
136 flash_get_offsets(CONFIG_SYS_FLASH_BASE
, &flash_info
[0]);
138 #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
139 /* monitor protection ON by default */
140 flash_protect(FLAG_PROTECT_SET
,
141 CONFIG_SYS_MONITOR_BASE
,
142 CONFIG_SYS_MONITOR_BASE
+ monitor_flash_len
- 1,
146 #ifdef CONFIG_ENV_IS_IN_FLASH
147 /* ENV protection ON by default */
148 flash_protect(FLAG_PROTECT_SET
,
150 CONFIG_ENV_ADDR
+ CONFIG_ENV_SIZE
- 1, &flash_info
[0]);
154 memctl
->memc_or1
= CONFIG_SYS_OR_TIMING_FLASH
|
155 (-size_b1
& 0xFFFF8000);
156 memctl
->memc_br1
= ((CONFIG_SYS_FLASH_BASE
+
157 size_b0
) & BR_BA_MSK
) | BR_MS_GPCM
| BR_V
;
159 /* Re-do sizing to get full correct info */
160 size_b1
= flash_get_size((vu_long
*)(CONFIG_SYS_FLASH_BASE
+
161 size_b0
), &flash_info
[1]);
163 flash_get_offsets(CONFIG_SYS_FLASH_BASE
+ size_b0
,
166 #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
167 /* monitor protection ON by default */
168 flash_protect(FLAG_PROTECT_SET
,
169 CONFIG_SYS_MONITOR_BASE
,
170 CONFIG_SYS_MONITOR_BASE
+ monitor_flash_len
- 1,
174 #ifdef CONFIG_ENV_IS_IN_FLASH
175 /* ENV protection ON by default */
176 flash_protect(FLAG_PROTECT_SET
,
178 CONFIG_ENV_ADDR
+ CONFIG_ENV_SIZE
- 1,
182 memctl
->memc_br1
= 0; /* invalidate bank */
184 flash_info
[1].flash_id
= FLASH_UNKNOWN
;
185 flash_info
[1].sector_count
= -1;
188 flash_info
[0].size
= size_b0
;
189 flash_info
[1].size
= size_b1
;
192 #endif /* CONFIG_BOOT_32B */
194 return size_b0
+ size_b1
;
198 void flash_print_info(flash_info_t
*info
)
202 if (info
->flash_id
== FLASH_UNKNOWN
) {
203 printf("missing or unknown FLASH type\n");
207 switch (info
->flash_id
& FLASH_VENDMASK
) {
215 printf("Unknown Vendor ");
219 switch (info
->flash_id
& FLASH_TYPEMASK
) {
221 printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
224 printf("AM29LV400T (4 Mbit, top boot sector)\n");
227 printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
230 printf("AM29LV800T (8 Mbit, top boot sector)\n");
233 printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
236 printf("AM29LV160T (16 Mbit, top boot sector)\n");
239 printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
242 printf("AM29LV320T (32 Mbit, top boot sector)\n");
245 printf("Unknown Chip Type\n");
249 printf(" Size: %ld MB in %d Sectors\n",
250 info
->size
>> 20, info
->sector_count
);
252 printf(" Sector Start Addresses:");
253 for (i
= 0; i
< info
->sector_count
; ++i
) {
257 info
->start
[i
], info
->protect
[i
] ? " (RO)" : " ");
264 * The following code cannot be run from FLASH!
267 int flash_erase(flash_info_t
*info
, int s_first
, int s_last
)
269 vu_long
*addr
= (vu_long
*) (info
->start
[0]);
270 int flag
, prot
, sect
, l_sect
, in_mid
, in_did
;
271 ulong start
, now
, last
;
273 if ((s_first
< 0) || (s_first
> s_last
)) {
274 if (info
->flash_id
== FLASH_UNKNOWN
)
275 printf("- missing\n");
277 printf("- no sectors to erase\n");
282 if ((info
->flash_id
== FLASH_UNKNOWN
) ||
283 (info
->flash_id
> FLASH_AMD_COMP
)) {
284 printf("Can't erase unknown flash type %08lx - aborted\n",
290 for (sect
= s_first
; sect
<= s_last
; ++sect
) {
291 if (info
->protect
[sect
])
296 printf("- Warning: %d protected sectors will not be erased!\n",
304 /* Disable interrupts which might cause a timeout here */
305 flag
= disable_interrupts();
307 #if defined(CONFIG_BOOT_8B)
308 my_out_8((unsigned char *)((ulong
)addr
+ 0x555), 0xaa);
309 my_out_8((unsigned char *)((ulong
)addr
+ 0x2aa), 0x55);
310 my_out_8((unsigned char *)((ulong
)addr
+ 0x555), 0x90);
312 in_mid
= my_in_8((unsigned char *)addr
);
313 in_did
= my_in_8((unsigned char *)((ulong
)addr
+ 1));
315 printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid
, in_did
);
317 my_out_8((unsigned char *)addr
, 0xf0);
320 my_out_8((unsigned char *)((ulong
)addr
+ 0x555), 0xaa);
321 my_out_8((unsigned char *)((ulong
)addr
+ 0x2aa), 0x55);
322 my_out_8((unsigned char *)((ulong
)addr
+ 0x555), 0x80);
323 my_out_8((unsigned char *)((ulong
)addr
+ 0x555), 0xaa);
324 my_out_8((unsigned char *)((ulong
)addr
+ 0x2aa), 0x55);
326 /* Start erase on unprotected sectors */
327 for (sect
= s_first
; sect
<= s_last
; sect
++) {
328 if (info
->protect
[sect
] == 0) { /* not protected */
329 addr
= (vu_long
*) (info
->start
[sect
]);
330 /*addr[0] = 0x00300030; */
331 my_out_8((unsigned char *)((ulong
)addr
), 0x30);
335 #elif defined(CONFIG_BOOT_16B)
336 my_out_be16((unsigned short *)((ulong
)addr
+ (0xaaa)), 0xaa);
337 my_out_be16((unsigned short *)((ulong
)addr
+ (0x554)), 0x55);
338 my_out_be16((unsigned short *)((ulong
)addr
+ (0xaaa)), 0x90);
339 in_mid
= my_in_be16((unsigned short *)addr
);
340 in_did
= my_in_be16((unsigned short *)((ulong
)addr
+ 2));
341 printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid
, in_did
);
342 my_out_be16((unsigned short *)addr
, 0xf0);
344 my_out_be16((unsigned short *)((ulong
)addr
+ 0xaaa), 0xaa);
345 my_out_be16((unsigned short *)((ulong
)addr
+ 0x554), 0x55);
346 my_out_be16((unsigned short *)((ulong
)addr
+ 0xaaa), 0x80);
347 my_out_be16((unsigned short *)((ulong
)addr
+ 0xaaa), 0xaa);
348 my_out_be16((unsigned short *)((ulong
)addr
+ 0x554), 0x55);
349 /* Start erase on unprotected sectors */
350 for (sect
= s_first
; sect
<= s_last
; sect
++) {
351 if (info
->protect
[sect
] == 0) { /* not protected */
352 addr
= (vu_long
*) (info
->start
[sect
]);
353 my_out_be16((unsigned short *)((ulong
)addr
), 0x30);
358 #elif defined(CONFIG_BOOT_32B)
359 my_out_be32((unsigned *)((ulong
)addr
+ 0x1554), 0xaa);
360 my_out_be32((unsigned *)((ulong
)addr
+ 0xaa8), 0x55);
361 my_out_be32((unsigned *)((ulong
)addr
+ 0x1554), 0x90);
363 in_mid
= my_in_be32((unsigned *)addr
);
364 in_did
= my_in_be32((unsigned *)((ulong
)addr
+ 4));
366 printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid
, in_did
);
368 my_out_be32((unsigned *) addr
, 0xf0);
371 my_out_be32((unsigned *)((ulong
)addr
+ 0x1554), 0xaa);
372 my_out_be32((unsigned *)((ulong
)addr
+ 0xaa8), 0x55);
373 my_out_be32((unsigned *)((ulong
)addr
+ 0x1554), 0x80);
374 my_out_be32((unsigned *)((ulong
)addr
+ 0x1554), 0xaa);
375 my_out_be32((unsigned *)((ulong
)addr
+ 0xaa8), 0x55);
377 /* Start erase on unprotected sectors */
378 for (sect
= s_first
; sect
<= s_last
; sect
++) {
379 if (info
->protect
[sect
] == 0) { /* not protected */
380 addr
= (vu_long
*) (info
->start
[sect
]);
381 my_out_be32((unsigned *)((ulong
)addr
), 0x00300030);
387 #error CONFIG_BOOT_(size)B missing.
389 /* re-enable interrupts if necessary */
393 /* wait at least 80us - let's wait 1 ms */
397 * We wait for the last triggered sector
402 start
= get_timer(0);
404 addr
= (vu_long
*) (info
->start
[l_sect
]);
405 #if defined(CONFIG_BOOT_8B)
406 while ((my_in_8((unsigned char *) addr
) & 0x80) != 0x80)
407 #elif defined(CONFIG_BOOT_16B)
408 while ((my_in_be16((unsigned short *) addr
) & 0x0080) != 0x0080)
409 #elif defined(CONFIG_BOOT_32B)
410 while ((my_in_be32((unsigned *) addr
) & 0x00800080) != 0x00800080)
412 #error CONFIG_BOOT_(size)B missing.
415 now
= get_timer(start
);
416 if (now
> CONFIG_SYS_FLASH_ERASE_TOUT
) {
420 /* show that we're waiting */
421 if ((now
- last
) > 1000) { /* every second */
427 /* reset to read mode */
428 addr
= (volatile unsigned long *) info
->start
[0];
430 #if defined(CONFIG_BOOT_8B)
431 my_out_8((unsigned char *) addr
, 0xf0);
432 #elif defined(CONFIG_BOOT_16B)
433 my_out_be16((unsigned short *) addr
, 0x00f0);
434 #elif defined(CONFIG_BOOT_32B)
435 my_out_be32((unsigned *) addr
, 0x00F000F0); /* reset bank */
437 #error CONFIG_BOOT_(size)B missing.
444 * Copy memory to flash, returns:
447 * 2 - Flash not erased
450 int write_buff(flash_info_t
*info
, uchar
*src
, ulong addr
, ulong cnt
)
455 wp
= (addr
& ~3); /* get lower word aligned address */
458 * handle unaligned start bytes
464 for (i
= 0, cp
= wp
; i
< l
; ++i
, ++cp
)
465 data
= (data
<< 8) | (*(uchar
*) cp
);
467 for (; i
< 4 && cnt
> 0; ++i
) {
468 data
= (data
<< 8) | *src
++;
472 for (; cnt
== 0 && i
< 4; ++i
, ++cp
)
473 data
= (data
<< 8) | (*(uchar
*) cp
);
475 rc
= write_word(info
, wp
, data
);
484 * handle word aligned part
488 for (i
= 0; i
< 4; ++i
)
489 data
= (data
<< 8) | *src
++;
491 rc
= write_word(info
, wp
, data
);
504 * handle unaligned tail bytes
507 for (i
= 0, cp
= wp
; i
< 4 && cnt
> 0; ++i
, ++cp
) {
508 data
= (data
<< 8) | *src
++;
511 for (; i
< 4; ++i
, ++cp
)
512 data
= (data
<< 8) | (*(uchar
*) cp
);
514 return write_word(info
, wp
, data
);
518 * Write a word to Flash, returns:
521 * 2 - Flash not erased
523 static int write_word(flash_info_t
*info
, ulong dest
, ulong data
)
525 ulong addr
= (ulong
) (info
->start
[0]);
531 /* Check if Flash is (sufficiently) erased */
532 if (((ulong
)*(ulong
*)dest
& data
) != data
)
535 /* Disable interrupts which might cause a timeout here */
536 flag
= disable_interrupts();
537 #if defined(CONFIG_BOOT_8B)
542 my_out_8((unsigned char *) (addr
+ 0x555), 0xaa);
543 my_out_8((unsigned char *) (addr
+ 0x2aa), 0x55);
544 my_out_8((unsigned char *) (addr
+ 0x555), 0x90);
546 in_mid
= my_in_8((unsigned char *) addr
);
547 in_did
= my_in_8((unsigned char *) (addr
+ 1));
549 printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid
, in_did
);
551 my_out_8((unsigned char *) addr
, 0xf0);
558 data_ch
[0] = (int) ((data
>> 24) & 0xff);
559 data_ch
[1] = (int) ((data
>> 16) & 0xff);
560 data_ch
[2] = (int) ((data
>> 8) & 0xff);
561 data_ch
[3] = (int) (data
& 0xff);
563 for (i
= 0; i
< 4; i
++) {
564 my_out_8((unsigned char *) (addr
+ 0x555), 0xaa);
565 my_out_8((unsigned char *) (addr
+ 0x2aa), 0x55);
566 my_out_8((unsigned char *) (addr
+ 0x555), 0xa0);
567 my_out_8((unsigned char *) (dest
+ i
), data_ch
[i
]);
569 /* re-enable interrupts if necessary */
573 start
= get_timer(0);
574 while ((my_in_8((unsigned char *)(dest
+ i
))) !=
576 if (get_timer(start
) >
577 CONFIG_SYS_FLASH_WRITE_TOUT
) {
583 #elif defined(CONFIG_BOOT_16B)
584 data_short
[0] = (int) (data
>> 16) & 0xffff;
585 data_short
[1] = (int) data
& 0xffff;
586 for (i
= 0; i
< 2; i
++) {
587 my_out_be16((unsigned short *)((ulong
)addr
+ 0xaaa), 0xaa);
588 my_out_be16((unsigned short *)((ulong
)addr
+ 0x554), 0x55);
589 my_out_be16((unsigned short *)((ulong
)addr
+ 0xaaa), 0xa0);
590 my_out_be16((unsigned short *)(dest
+ (i
* 2)),
593 /* re-enable interrupts if necessary */
597 start
= get_timer(0);
598 while ((my_in_be16((unsigned short *)(dest
+ (i
* 2)))) !=
600 if (get_timer(start
) > CONFIG_SYS_FLASH_WRITE_TOUT
)
604 #elif defined(CONFIG_BOOT_32B)
605 addr
[0x0555] = 0x00AA00AA;
606 addr
[0x02AA] = 0x00550055;
607 addr
[0x0555] = 0x00A000A0;
609 *((vu_long
*)dest
) = data
;
611 /* re-enable interrupts if necessary */
615 /* data polling for D7 */
616 start
= get_timer(0);
617 while ((*((vu_long
*)dest
) & 0x00800080) != (data
& 0x00800080)) {
618 if (get_timer(start
) > CONFIG_SYS_FLASH_WRITE_TOUT
)
625 #ifdef CONFIG_BOOT_8B
626 static int my_in_8(unsigned char *addr
)
629 __asm__
__volatile__("lbz%U1%X1 %0,%1; eieio":"=r"(ret
):"m"(*addr
));
634 static void my_out_8(unsigned char *addr
, int val
)
636 __asm__
__volatile__("stb%U0%X0 %1,%0; eieio":"=m"(*addr
):"r"(val
));
639 #ifdef CONFIG_BOOT_16B
640 static int my_in_be16(unsigned short *addr
)
643 __asm__
__volatile__("lhz%U1%X1 %0,%1; eieio":"=r"(ret
):"m"(*addr
));
648 static void my_out_be16(unsigned short *addr
, int val
)
650 __asm__
__volatile__("sth%U0%X0 %1,%0; eieio":"=m"(*addr
):"r"(val
));
653 #ifdef CONFIG_BOOT_32B
654 static unsigned my_in_be32(unsigned *addr
)
657 __asm__
__volatile__("lwz%U1%X1 %0,%1; eieio":"=r"(ret
):"m"(*addr
));
662 static void my_out_be32(unsigned *addr
, int val
)
664 __asm__
__volatile__("stw%U0%X0 %1,%0; eieio":"=m"(*addr
):"r"(val
));