2
* Copyright (c) 2010 Broadcom Corporation
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#include <linux/kernel.h>
18
#include <linux/string.h>
25
#include <bcmendian.h>
29
#include "siutils_priv.h"
32
* There are two different OTP controllers so far:
33
* 1. new IPX OTP controller: chipc 21, >=23
34
* 2. older HND OTP controller: chipc 12, 17, 22
36
* Define BCMHNDOTP to include support for the HND OTP controller.
37
* Define BCMIPXOTP to include support for the IPX OTP controller.
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* NOTE 1: More than one may be defined
40
* NOTE 2: If none are defined, the default is to include them all.
43
#if !defined(BCMHNDOTP) && !defined(BCMIPXOTP)
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#define OTPTYPE_HND(ccrev) ((ccrev) < 21 || (ccrev) == 22)
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#define OTPTYPE_IPX(ccrev) ((ccrev) == 21 || (ccrev) >= 23)
51
#define OTPP_TRIES 10000000 /* # of tries for OTPP */
54
#define MAXNUMRDES 9 /* Maximum OTP redundancy entries */
57
/* OTP common function type */
58
typedef int (*otp_status_t) (void *oh);
59
typedef int (*otp_size_t) (void *oh);
60
typedef void *(*otp_init_t) (si_t *sih);
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typedef u16(*otp_read_bit_t) (void *oh, chipcregs_t *cc, uint off);
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typedef int (*otp_read_region_t) (si_t *sih, int region, u16 *data,
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typedef int (*otp_nvread_t) (void *oh, char *data, uint *len);
66
/* OTP function struct */
67
typedef struct otp_fn_s {
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otp_read_bit_t read_bit;
71
otp_read_region_t read_region;
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uint ccrev; /* chipc revision */
78
otp_fn_t *fn; /* OTP functions */
79
si_t *sih; /* Saved sb handle */
84
u16 wsize; /* Size of otp in words */
85
u16 rows; /* Geometry */
86
u16 cols; /* Geometry */
87
u32 status; /* Flag bits (lock/prog/rv).
88
* (Reflected only when OTP is power cycled)
90
u16 hwbase; /* hardware subregion offset */
91
u16 hwlim; /* hardware subregion boundary */
92
u16 swbase; /* software subregion offset */
93
u16 swlim; /* software subregion boundary */
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u16 fbase; /* fuse subregion offset */
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u16 flim; /* fuse subregion boundary */
96
int otpgu_base; /* offset to General Use Region */
97
#endif /* BCMIPXOTP */
100
/* HND OTP section */
101
uint size; /* Size of otp in bytes */
102
uint hwprot; /* Hardware protection bits */
103
uint signvalid; /* Signature valid bits */
104
int boundary; /* hw/sw boundary */
105
#endif /* BCMHNDOTP */
108
static otpinfo_t otpinfo;
113
* Exported functions:
118
* ipxotp_read_region()
125
#define HWSW_RGN(rgn) (((rgn) == OTP_HW_RGN) ? "h/w" : "s/w")
128
/* CC revs 21, 24 and 27 OTP General Use Region word offset */
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#define REVA4_OTPGU_BASE 12
131
/* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
132
#define REVB8_OTPGU_BASE 20
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/* CC rev 36 OTP General Use Region word offset */
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#define REV36_OTPGU_BASE 12
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/* Subregion word offsets in General Use region */
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#define OTPGU_HSB_OFF 0
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#define OTPGU_SFB_OFF 1
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#define OTPGU_CI_OFF 2
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#define OTPGU_P_OFF 3
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#define OTPGU_SROM_OFF 4
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/* Flag bit offsets in General Use region */
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#define OTPGU_HWP_OFF 60
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#define OTPGU_SWP_OFF 61
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#define OTPGU_CIP_OFF 62
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#define OTPGU_FUSEP_OFF 63
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#define OTPGU_CIP_MSK 0x4000
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#define OTPGU_P_MSK 0xf000
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#define OTPGU_P_SHIFT (OTPGU_HWP_OFF % 16)
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#define OTP_SZ_FU_324 ((roundup(324, 8))/8) /* 324 bits */
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#define OTP_SZ_FU_288 (288/8) /* 288 bits */
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#define OTP_SZ_FU_216 (216/8) /* 216 bits */
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#define OTP_SZ_FU_72 (72/8) /* 72 bits */
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#define OTP_SZ_CHECKSUM (16/8) /* 16 bits */
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#define OTP4315_SWREG_SZ 178 /* 178 bytes */
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#define OTP_SZ_FU_144 (144/8) /* 144 bits */
162
static int ipxotp_status(void *oh)
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otpinfo_t *oi = (otpinfo_t *) oh;
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return (int)(oi->status);
168
/* Return size in bytes */
169
static int ipxotp_size(void *oh)
171
otpinfo_t *oi = (otpinfo_t *) oh;
172
return (int)oi->wsize * 2;
175
static u16 ipxotp_otpr(void *oh, chipcregs_t *cc, uint wn)
179
oi = (otpinfo_t *) oh;
181
ASSERT(wn < oi->wsize);
184
return R_REG(oi->osh, &cc->sromotp[wn]);
187
static u16 ipxotp_read_bit(void *oh, chipcregs_t *cc, uint off)
189
otpinfo_t *oi = (otpinfo_t *) oh;
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row = off / oi->cols;
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col = off % oi->cols;
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otpp = OTPP_START_BUSY |
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((OTPPOC_READ << OTPP_OC_SHIFT) & OTPP_OC_MASK) |
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((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) |
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((col << OTPP_COL_SHIFT) & OTPP_COL_MASK);
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W_REG(oi->osh, &cc->otpprog, otpp);
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((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
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&& (k < OTPP_TRIES); k++)
206
if (k >= OTPP_TRIES) {
209
if (st & OTPP_READERR) {
212
st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
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/* Calculate max HW/SW region byte size by substracting fuse region and checksum size,
218
* osizew is oi->wsize (OTP size - GU size) in words
220
static int ipxotp_max_rgnsz(si_t *sih, int osizew)
224
switch (CHIPID(sih->chip)) {
225
case BCM43224_CHIP_ID:
226
case BCM43225_CHIP_ID:
227
ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
229
case BCM4313_CHIP_ID:
230
ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
233
ASSERT(0); /* Don't konw about this chip */
239
static void _ipxotp_init(otpinfo_t *oi, chipcregs_t *cc)
244
/* record word offset of General Use Region for various chipcommon revs */
245
if (oi->sih->ccrev == 21 || oi->sih->ccrev == 24
246
|| oi->sih->ccrev == 27) {
247
oi->otpgu_base = REVA4_OTPGU_BASE;
248
} else if (oi->sih->ccrev == 36) {
249
/* OTP size greater than equal to 2KB (128 words), otpgu_base is similar to rev23 */
250
if (oi->wsize >= 128)
251
oi->otpgu_base = REVB8_OTPGU_BASE;
253
oi->otpgu_base = REV36_OTPGU_BASE;
254
} else if (oi->sih->ccrev == 23 || oi->sih->ccrev >= 25) {
255
oi->otpgu_base = REVB8_OTPGU_BASE;
258
/* First issue an init command so the status is up to date */
260
OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
262
W_REG(oi->osh, &cc->otpprog, otpp);
264
((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
265
&& (k < OTPP_TRIES); k++)
267
if (k >= OTPP_TRIES) {
271
/* Read OTP lock bits and subregion programmed indication bits */
272
oi->status = R_REG(oi->osh, &cc->otpstatus);
274
if ((CHIPID(oi->sih->chip) == BCM43224_CHIP_ID)
275
|| (CHIPID(oi->sih->chip) == BCM43225_CHIP_ID)) {
278
(ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_P_OFF) &
281
oi->status |= (p_bits << OTPS_GUP_SHIFT);
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* h/w region base and fuse region limit are fixed to the top and
286
* the bottom of the general use region. Everything else can be flexible.
288
oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
289
oi->hwlim = oi->wsize;
290
if (oi->status & OTPS_GUP_HW) {
292
ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
293
oi->swbase = oi->hwlim;
295
oi->swbase = oi->hwbase;
297
/* subtract fuse and checksum from beginning */
298
oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
300
if (oi->status & OTPS_GUP_SW) {
302
ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
303
oi->fbase = oi->swlim;
305
oi->fbase = oi->swbase;
307
oi->flim = oi->wsize;
310
static void *ipxotp_init(si_t *sih)
316
/* Make sure we're running IPX OTP */
317
ASSERT(OTPTYPE_IPX(sih->ccrev));
318
if (!OTPTYPE_IPX(sih->ccrev))
321
/* Make sure OTP is not disabled */
322
if (si_is_otp_disabled(sih)) {
326
/* Make sure OTP is powered up */
327
if (!si_is_otp_powered(sih)) {
333
/* Check for otp size */
334
switch ((sih->cccaps & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
353
case 7: /* 16x64 *//* 1024 bits */
359
/* Don't know the geometry */
363
/* Retrieve OTP region info */
364
idx = si_coreidx(sih);
365
cc = si_setcoreidx(sih, SI_CC_IDX);
368
_ipxotp_init(oi, cc);
370
si_setcoreidx(sih, idx);
375
static int ipxotp_read_region(void *oh, int region, u16 *data, uint *wlen)
377
otpinfo_t *oi = (otpinfo_t *) oh;
382
/* Validate region selection */
385
sz = (uint) oi->hwlim - oi->hwbase;
386
if (!(oi->status & OTPS_GUP_HW)) {
388
return BCME_NOTFOUND;
392
return BCME_BUFTOOSHORT;
397
sz = ((uint) oi->swlim - oi->swbase);
398
if (!(oi->status & OTPS_GUP_SW)) {
400
return BCME_NOTFOUND;
404
return BCME_BUFTOOSHORT;
410
if (!(oi->status & OTPS_GUP_CI)) {
412
return BCME_NOTFOUND;
416
return BCME_BUFTOOSHORT;
418
base = oi->otpgu_base + OTPGU_CI_OFF;
421
sz = (uint) oi->flim - oi->fbase;
422
if (!(oi->status & OTPS_GUP_FUSE)) {
424
return BCME_NOTFOUND;
428
return BCME_BUFTOOSHORT;
433
sz = ((uint) oi->flim - oi->hwbase);
434
if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
436
return BCME_NOTFOUND;
440
return BCME_BUFTOOSHORT;
448
idx = si_coreidx(oi->sih);
449
cc = si_setcoreidx(oi->sih, SI_CC_IDX);
453
for (i = 0; i < sz; i++)
454
data[i] = ipxotp_otpr(oh, cc, base + i);
456
si_setcoreidx(oi->sih, idx);
461
static int ipxotp_nvread(void *oh, char *data, uint *len)
463
return BCME_UNSUPPORTED;
466
static otp_fn_t ipxotp_fn = {
467
(otp_size_t) ipxotp_size,
468
(otp_read_bit_t) ipxotp_read_bit,
470
(otp_init_t) ipxotp_init,
471
(otp_read_region_t) ipxotp_read_region,
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(otp_nvread_t) ipxotp_nvread,
474
(otp_status_t) ipxotp_status
477
#endif /* BCMIPXOTP */
482
* Exported functions:
487
* hndotp_read_region()
494
/* Fields in otpstatus */
495
#define OTPS_PROGFAIL 0x80000000
496
#define OTPS_PROTECT 0x00000007
497
#define OTPS_HW_PROTECT 0x00000001
498
#define OTPS_SW_PROTECT 0x00000002
499
#define OTPS_CID_PROTECT 0x00000004
500
#define OTPS_RCEV_MSK 0x00003f00
501
#define OTPS_RCEV_SHIFT 8
503
/* Fields in the otpcontrol register */
504
#define OTPC_RECWAIT 0xff000000
505
#define OTPC_PROGWAIT 0x00ffff00
506
#define OTPC_PRW_SHIFT 8
507
#define OTPC_MAXFAIL 0x00000038
508
#define OTPC_VSEL 0x00000006
509
#define OTPC_SELVL 0x00000001
511
/* OTP regions (Word offsets from otp size) */
512
#define OTP_SWLIM_OFF (-4)
513
#define OTP_CIDBASE_OFF 0
514
#define OTP_CIDLIM_OFF 4
516
/* Predefined OTP words (Word offset from otp size) */
517
#define OTP_BOUNDARY_OFF (-4)
518
#define OTP_HWSIGN_OFF (-3)
519
#define OTP_SWSIGN_OFF (-2)
520
#define OTP_CIDSIGN_OFF (-1)
521
#define OTP_CID_OFF 0
522
#define OTP_PKG_OFF 1
523
#define OTP_FID_OFF 2
524
#define OTP_RSV_OFF 3
525
#define OTP_LIM_OFF 4
526
#define OTP_RD_OFF 4 /* Redundancy row starts here */
527
#define OTP_RC0_OFF 28 /* Redundancy control word 1 */
528
#define OTP_RC1_OFF 32 /* Redundancy control word 2 */
529
#define OTP_RC_LIM_OFF 36 /* Redundancy control word end */
531
#define OTP_HW_REGION OTPS_HW_PROTECT
532
#define OTP_SW_REGION OTPS_SW_PROTECT
533
#define OTP_CID_REGION OTPS_CID_PROTECT
535
#if OTP_HW_REGION != OTP_HW_RGN
536
#error "incompatible OTP_HW_RGN"
538
#if OTP_SW_REGION != OTP_SW_RGN
539
#error "incompatible OTP_SW_RGN"
541
#if OTP_CID_REGION != OTP_CI_RGN
542
#error "incompatible OTP_CI_RGN"
545
/* Redundancy entry definitions */
546
#define OTP_RCE_ROW_SZ 6
547
#define OTP_RCE_SIGN_MASK 0x7fff
548
#define OTP_RCE_ROW_MASK 0x3f
549
#define OTP_RCE_BITS 21
550
#define OTP_RCE_SIGN_SZ 15
551
#define OTP_RCE_BIT0 1
554
#define OTP_SIGNATURE 0x578a
555
#define OTP_MAGIC 0x4e56
557
static int hndotp_status(void *oh)
559
otpinfo_t *oi = (otpinfo_t *) oh;
560
return (int)(oi->hwprot | oi->signvalid);
563
static int hndotp_size(void *oh)
565
otpinfo_t *oi = (otpinfo_t *) oh;
566
return (int)(oi->size);
569
static u16 hndotp_otpr(void *oh, chipcregs_t *cc, uint wn)
571
otpinfo_t *oi = (otpinfo_t *) oh;
575
ASSERT(wn < ((oi->size / 2) + OTP_RC_LIM_OFF));
578
osh = si_osh(oi->sih);
580
ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
581
return R_REG(osh, &ptr[wn]);
584
static u16 hndotp_otproff(void *oh, chipcregs_t *cc, int woff)
586
otpinfo_t *oi = (otpinfo_t *) oh;
590
ASSERT(woff >= (-((int)oi->size / 2)));
591
ASSERT(woff < OTP_LIM_OFF);
594
osh = si_osh(oi->sih);
596
ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
598
return R_REG(osh, &ptr[(oi->size / 2) + woff]);
601
static u16 hndotp_read_bit(void *oh, chipcregs_t *cc, uint idx)
603
otpinfo_t *oi = (otpinfo_t *) oh;
608
osh = si_osh(oi->sih);
612
otpp = OTPP_START_BUSY | OTPP_READ |
613
((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) | (col & OTPP_COL_MASK);
615
W_REG(osh, &cc->otpprog, otpp);
616
st = R_REG(osh, &cc->otpprog);
618
((st & OTPP_START_BUSY) == OTPP_START_BUSY) && (k < OTPP_TRIES);
620
st = R_REG(osh, &cc->otpprog);
622
if (k >= OTPP_TRIES) {
625
if (st & OTPP_READERR) {
628
st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
632
static void *hndotp_init(si_t *sih)
637
u32 cap = 0, clkdiv, otpdiv = 0;
643
idx = si_coreidx(sih);
644
osh = si_osh(oi->sih);
647
cc = si_setcoreidx(sih, SI_CC_IDX);
649
cap = R_REG(osh, &cc->capabilities);
650
if ((cap & CC_CAP_OTPSIZE) == 0) {
655
/* As of right now, support only 4320a2, 4311a1 and 4312 */
656
ASSERT((oi->ccrev == 12) || (oi->ccrev == 17)
657
|| (oi->ccrev == 22));
659
((oi->ccrev == 12) || (oi->ccrev == 17)
660
|| (oi->ccrev == 22)))
663
/* Read the OTP byte size. chipcommon rev >= 18 has RCE so the size is
664
* 8 row (64 bytes) smaller
667
1 << (((cap & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT)
668
+ CC_CAP_OTPSIZE_BASE);
670
oi->size -= ((OTP_RC0_OFF - OTP_BOUNDARY_OFF) * 2);
672
oi->hwprot = (int)(R_REG(osh, &cc->otpstatus) & OTPS_PROTECT);
675
/* Check the region signature */
676
if (hndotp_otproff(oi, cc, OTP_HWSIGN_OFF) == OTP_SIGNATURE) {
677
oi->signvalid |= OTP_HW_REGION;
678
oi->boundary = hndotp_otproff(oi, cc, OTP_BOUNDARY_OFF);
681
if (hndotp_otproff(oi, cc, OTP_SWSIGN_OFF) == OTP_SIGNATURE)
682
oi->signvalid |= OTP_SW_REGION;
684
if (hndotp_otproff(oi, cc, OTP_CIDSIGN_OFF) == OTP_SIGNATURE)
685
oi->signvalid |= OTP_CID_REGION;
687
/* Set OTP clkdiv for stability */
692
clkdiv = R_REG(osh, &cc->clkdiv);
694
(clkdiv & ~CLKD_OTP) | (otpdiv << CLKD_OTP_SHIFT);
695
W_REG(osh, &cc->clkdiv, clkdiv);
703
si_setcoreidx(sih, idx);
708
static int hndotp_read_region(void *oh, int region, u16 *data, uint *wlen)
710
otpinfo_t *oi = (otpinfo_t *) oh;
715
/* Only support HW region (no active chips use HND OTP SW region) */
716
ASSERT(region == OTP_HW_REGION);
719
st = oi->hwprot | oi->signvalid;
720
if ((st & region) == 0)
721
return BCME_NOTFOUND;
724
((int)*wlen < oi->boundary / 2) ? *wlen : (uint) oi->boundary / 2;
726
idx = si_coreidx(oi->sih);
727
cc = si_setcoreidx(oi->sih, SI_CC_IDX);
730
for (i = 0; i < (int)*wlen; i++)
731
data[i] = hndotp_otpr(oh, cc, i);
733
si_setcoreidx(oi->sih, idx);
738
static int hndotp_nvread(void *oh, char *data, uint *len)
741
otpinfo_t *oi = (otpinfo_t *) oh;
742
u32 base, bound, lim = 0, st;
743
int i, chunk, gchunks, tsz = 0;
749
/* save the orig core */
750
idx = si_coreidx(oi->sih);
751
cc = si_setcoreidx(oi->sih, SI_CC_IDX);
754
st = hndotp_status(oh);
755
if (!(st & (OTP_HW_REGION | OTP_SW_REGION))) {
760
/* Read the whole otp so we can easily manipulate it */
761
lim = hndotp_size(oh);
762
rawotp = kmalloc(lim, GFP_ATOMIC);
763
if (rawotp == NULL) {
767
for (i = 0; i < (int)(lim / 2); i++)
768
rawotp[i] = hndotp_otpr(oh, cc, i);
770
if ((st & OTP_HW_REGION) == 0) {
771
/* This could be a programming failure in the first
772
* chunk followed by one or more good chunks
774
for (i = 0; i < (int)(lim / 2); i++)
775
if (rawotp[i] == OTP_MAGIC)
778
if (i < (int)(lim / 2)) {
780
bound = (i * 2) + rawotp[i + 1];
786
bound = rawotp[(lim / 2) + OTP_BOUNDARY_OFF];
788
/* There are two cases: 1) The whole otp is used as nvram
789
* and 2) There is a hardware header followed by nvram.
791
if (rawotp[0] == OTP_MAGIC) {
797
/* Find and copy the data */
803
while ((i < (int)(lim / 2)) && (rawotp[i] == OTP_MAGIC)) {
804
int dsz, rsz = rawotp[i + 1];
806
if (((i * 2) + rsz) >= (int)lim) {
807
/* Bad length, try to find another chunk anyway */
810
if (hndcrc16((u8 *) &rawotp[i], rsz,
811
CRC16_INIT_VALUE) == CRC16_GOOD_VALUE) {
812
/* Good crc, copy the vars */
816
if (offset + dsz >= *len) {
819
bcopy((char *)&rawotp[i + 2], &data[offset], dsz);
821
/* Remove extra null characters at the end */
823
data[offset - 1] == 0 && data[offset - 2] == 0)
827
/* bad length or crc didn't check, try to find the next set */
828
if (rawotp[i + (rsz / 2)] == OTP_MAGIC) {
829
/* Assume length is good */
832
while (++i < (int)(lim / 2))
833
if (rawotp[i] == OTP_MAGIC)
845
si_setcoreidx(oi->sih, idx);
850
static otp_fn_t hndotp_fn = {
851
(otp_size_t) hndotp_size,
852
(otp_read_bit_t) hndotp_read_bit,
854
(otp_init_t) hndotp_init,
855
(otp_read_region_t) hndotp_read_region,
856
(otp_nvread_t) hndotp_nvread,
858
(otp_status_t) hndotp_status
861
#endif /* BCMHNDOTP */
864
* Common Code: Compiled for IPX / HND / AUTO
873
int otp_status(void *oh)
875
otpinfo_t *oi = (otpinfo_t *) oh;
877
return oi->fn->status(oh);
880
int otp_size(void *oh)
882
otpinfo_t *oi = (otpinfo_t *) oh;
884
return oi->fn->size(oh);
887
u16 otp_read_bit(void *oh, uint offset)
889
otpinfo_t *oi = (otpinfo_t *) oh;
890
uint idx = si_coreidx(oi->sih);
891
chipcregs_t *cc = si_setcoreidx(oi->sih, SI_CC_IDX);
892
u16 readBit = (u16) oi->fn->read_bit(oh, cc, offset);
893
si_setcoreidx(oi->sih, idx);
897
void *otp_init(si_t *sih)
903
bzero(oi, sizeof(otpinfo_t));
905
oi->ccrev = sih->ccrev;
908
if (OTPTYPE_IPX(oi->ccrev))
913
if (OTPTYPE_HND(oi->ccrev))
917
if (oi->fn == NULL) {
922
oi->osh = si_osh(oi->sih);
924
ret = (oi->fn->init) (sih);
930
otp_read_region(si_t *sih, int region, u16 *data,
936
wasup = si_is_otp_powered(sih);
938
si_otp_power(sih, true);
940
if (!si_is_otp_powered(sih) || si_is_otp_disabled(sih)) {
951
err = (((otpinfo_t *) oh)->fn->read_region) (oh, region, data, wlen);
955
si_otp_power(sih, false);
960
int otp_nvread(void *oh, char *data, uint *len)
962
otpinfo_t *oi = (otpinfo_t *) oh;
964
return oi->fn->nvread(oh, data, len);