2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <linux/kernel.h>
21 #include <linux/string.h>
26 #include <bcmendian.h>
30 #include "siutils_priv.h"
33 * There are two different OTP controllers so far:
34 * 1. new IPX OTP controller: chipc 21, >=23
35 * 2. older HND OTP controller: chipc 12, 17, 22
37 * Define BCMHNDOTP to include support for the HND OTP controller.
38 * Define BCMIPXOTP to include support for the IPX OTP controller.
40 * NOTE 1: More than one may be defined
41 * NOTE 2: If none are defined, the default is to include them all.
44 #if !defined(BCMHNDOTP) && !defined(BCMIPXOTP)
49 #define OTPTYPE_HND(ccrev) ((ccrev) < 21 || (ccrev) == 22)
50 #define OTPTYPE_IPX(ccrev) ((ccrev) == 21 || (ccrev) >= 23)
52 #define OTPP_TRIES 10000000 /* # of tries for OTPP */
55 #define MAXNUMRDES 9 /* Maximum OTP redundancy entries */
58 /* OTP common function type */
59 typedef int (*otp_status_t) (void *oh);
60 typedef int (*otp_size_t) (void *oh);
61 typedef void *(*otp_init_t) (si_t *sih);
62 typedef u16(*otp_read_bit_t) (void *oh, chipcregs_t *cc, uint off);
63 typedef int (*otp_read_region_t) (si_t *sih, int region, u16 *data,
65 typedef int (*otp_nvread_t) (void *oh, char *data, uint *len);
67 /* OTP function struct */
68 typedef struct otp_fn_s {
70 otp_read_bit_t read_bit;
72 otp_read_region_t read_region;
78 uint ccrev; /* chipc revision */
79 otp_fn_t *fn; /* OTP functions */
80 si_t *sih; /* Saved sb handle */
85 u16 wsize; /* Size of otp in words */
86 u16 rows; /* Geometry */
87 u16 cols; /* Geometry */
88 u32 status; /* Flag bits (lock/prog/rv).
89 * (Reflected only when OTP is power cycled)
91 u16 hwbase; /* hardware subregion offset */
92 u16 hwlim; /* hardware subregion boundary */
93 u16 swbase; /* software subregion offset */
94 u16 swlim; /* software subregion boundary */
95 u16 fbase; /* fuse subregion offset */
96 u16 flim; /* fuse subregion boundary */
97 int otpgu_base; /* offset to General Use Region */
98 #endif /* BCMIPXOTP */
101 /* HND OTP section */
102 uint size; /* Size of otp in bytes */
103 uint hwprot; /* Hardware protection bits */
104 uint signvalid; /* Signature valid bits */
105 int boundary; /* hw/sw boundary */
106 #endif /* BCMHNDOTP */
109 static otpinfo_t otpinfo;
114 * Exported functions:
119 * ipxotp_read_region()
126 #define HWSW_RGN(rgn) (((rgn) == OTP_HW_RGN) ? "h/w" : "s/w")
129 /* CC revs 21, 24 and 27 OTP General Use Region word offset */
130 #define REVA4_OTPGU_BASE 12
132 /* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
133 #define REVB8_OTPGU_BASE 20
135 /* CC rev 36 OTP General Use Region word offset */
136 #define REV36_OTPGU_BASE 12
138 /* Subregion word offsets in General Use region */
139 #define OTPGU_HSB_OFF 0
140 #define OTPGU_SFB_OFF 1
141 #define OTPGU_CI_OFF 2
142 #define OTPGU_P_OFF 3
143 #define OTPGU_SROM_OFF 4
145 /* Flag bit offsets in General Use region */
146 #define OTPGU_HWP_OFF 60
147 #define OTPGU_SWP_OFF 61
148 #define OTPGU_CIP_OFF 62
149 #define OTPGU_FUSEP_OFF 63
150 #define OTPGU_CIP_MSK 0x4000
151 #define OTPGU_P_MSK 0xf000
152 #define OTPGU_P_SHIFT (OTPGU_HWP_OFF % 16)
155 #define OTP_SZ_FU_324 ((roundup(324, 8))/8) /* 324 bits */
156 #define OTP_SZ_FU_288 (288/8) /* 288 bits */
157 #define OTP_SZ_FU_216 (216/8) /* 216 bits */
158 #define OTP_SZ_FU_72 (72/8) /* 72 bits */
159 #define OTP_SZ_CHECKSUM (16/8) /* 16 bits */
160 #define OTP4315_SWREG_SZ 178 /* 178 bytes */
161 #define OTP_SZ_FU_144 (144/8) /* 144 bits */
163 static int ipxotp_status(void *oh)
165 otpinfo_t *oi = (otpinfo_t *) oh;
166 return (int)(oi->status);
169 /* Return size in bytes */
170 static int ipxotp_size(void *oh)
172 otpinfo_t *oi = (otpinfo_t *) oh;
173 return (int)oi->wsize * 2;
176 static u16 ipxotp_otpr(void *oh, chipcregs_t *cc, uint wn)
180 oi = (otpinfo_t *) oh;
182 ASSERT(wn < oi->wsize);
185 return R_REG(oi->osh, &cc->sromotp[wn]);
188 static u16 ipxotp_read_bit(void *oh, chipcregs_t *cc, uint off)
190 otpinfo_t *oi = (otpinfo_t *) oh;
194 row = off / oi->cols;
195 col = off % oi->cols;
197 otpp = OTPP_START_BUSY |
198 ((OTPPOC_READ << OTPP_OC_SHIFT) & OTPP_OC_MASK) |
199 ((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) |
200 ((col << OTPP_COL_SHIFT) & OTPP_COL_MASK);
201 W_REG(oi->osh, &cc->otpprog, otpp);
204 ((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
205 && (k < OTPP_TRIES); k++)
207 if (k >= OTPP_TRIES) {
210 if (st & OTPP_READERR) {
213 st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
218 /* Calculate max HW/SW region byte size by substracting fuse region and checksum size,
219 * osizew is oi->wsize (OTP size - GU size) in words
221 static int ipxotp_max_rgnsz(si_t *sih, int osizew)
225 switch (CHIPID(sih->chip)) {
226 case BCM43224_CHIP_ID:
227 case BCM43225_CHIP_ID:
228 ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
230 case BCM4313_CHIP_ID:
231 ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
234 ASSERT(0); /* Don't konw about this chip */
240 static void _ipxotp_init(otpinfo_t *oi, chipcregs_t *cc)
245 /* record word offset of General Use Region for various chipcommon revs */
246 if (oi->sih->ccrev == 21 || oi->sih->ccrev == 24
247 || oi->sih->ccrev == 27) {
248 oi->otpgu_base = REVA4_OTPGU_BASE;
249 } else if (oi->sih->ccrev == 36) {
250 /* OTP size greater than equal to 2KB (128 words), otpgu_base is similar to rev23 */
251 if (oi->wsize >= 128)
252 oi->otpgu_base = REVB8_OTPGU_BASE;
254 oi->otpgu_base = REV36_OTPGU_BASE;
255 } else if (oi->sih->ccrev == 23 || oi->sih->ccrev >= 25) {
256 oi->otpgu_base = REVB8_OTPGU_BASE;
259 /* First issue an init command so the status is up to date */
261 OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
263 W_REG(oi->osh, &cc->otpprog, otpp);
265 ((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
266 && (k < OTPP_TRIES); k++)
268 if (k >= OTPP_TRIES) {
272 /* Read OTP lock bits and subregion programmed indication bits */
273 oi->status = R_REG(oi->osh, &cc->otpstatus);
275 if ((CHIPID(oi->sih->chip) == BCM43224_CHIP_ID)
276 || (CHIPID(oi->sih->chip) == BCM43225_CHIP_ID)) {
279 (ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_P_OFF) &
282 oi->status |= (p_bits << OTPS_GUP_SHIFT);
286 * h/w region base and fuse region limit are fixed to the top and
287 * the bottom of the general use region. Everything else can be flexible.
289 oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
290 oi->hwlim = oi->wsize;
291 if (oi->status & OTPS_GUP_HW) {
293 ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
294 oi->swbase = oi->hwlim;
296 oi->swbase = oi->hwbase;
298 /* subtract fuse and checksum from beginning */
299 oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
301 if (oi->status & OTPS_GUP_SW) {
303 ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
304 oi->fbase = oi->swlim;
306 oi->fbase = oi->swbase;
308 oi->flim = oi->wsize;
311 static void *ipxotp_init(si_t *sih)
317 /* Make sure we're running IPX OTP */
318 ASSERT(OTPTYPE_IPX(sih->ccrev));
319 if (!OTPTYPE_IPX(sih->ccrev))
322 /* Make sure OTP is not disabled */
323 if (si_is_otp_disabled(sih)) {
327 /* Make sure OTP is powered up */
328 if (!si_is_otp_powered(sih)) {
334 /* Check for otp size */
335 switch ((sih->cccaps & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
354 case 7: /* 16x64 *//* 1024 bits */
360 /* Don't know the geometry */
364 /* Retrieve OTP region info */
365 idx = si_coreidx(sih);
366 cc = si_setcoreidx(sih, SI_CC_IDX);
369 _ipxotp_init(oi, cc);
371 si_setcoreidx(sih, idx);
376 static int ipxotp_read_region(void *oh, int region, u16 *data, uint *wlen)
378 otpinfo_t *oi = (otpinfo_t *) oh;
383 /* Validate region selection */
386 sz = (uint) oi->hwlim - oi->hwbase;
387 if (!(oi->status & OTPS_GUP_HW)) {
389 return BCME_NOTFOUND;
393 return BCME_BUFTOOSHORT;
398 sz = ((uint) oi->swlim - oi->swbase);
399 if (!(oi->status & OTPS_GUP_SW)) {
401 return BCME_NOTFOUND;
405 return BCME_BUFTOOSHORT;
411 if (!(oi->status & OTPS_GUP_CI)) {
413 return BCME_NOTFOUND;
417 return BCME_BUFTOOSHORT;
419 base = oi->otpgu_base + OTPGU_CI_OFF;
422 sz = (uint) oi->flim - oi->fbase;
423 if (!(oi->status & OTPS_GUP_FUSE)) {
425 return BCME_NOTFOUND;
429 return BCME_BUFTOOSHORT;
434 sz = ((uint) oi->flim - oi->hwbase);
435 if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
437 return BCME_NOTFOUND;
441 return BCME_BUFTOOSHORT;
449 idx = si_coreidx(oi->sih);
450 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
454 for (i = 0; i < sz; i++)
455 data[i] = ipxotp_otpr(oh, cc, base + i);
457 si_setcoreidx(oi->sih, idx);
462 static int ipxotp_nvread(void *oh, char *data, uint *len)
464 return BCME_UNSUPPORTED;
467 static otp_fn_t ipxotp_fn = {
468 (otp_size_t) ipxotp_size,
469 (otp_read_bit_t) ipxotp_read_bit,
471 (otp_init_t) ipxotp_init,
472 (otp_read_region_t) ipxotp_read_region,
473 (otp_nvread_t) ipxotp_nvread,
475 (otp_status_t) ipxotp_status
478 #endif /* BCMIPXOTP */
483 * Exported functions:
488 * hndotp_read_region()
495 /* Fields in otpstatus */
496 #define OTPS_PROGFAIL 0x80000000
497 #define OTPS_PROTECT 0x00000007
498 #define OTPS_HW_PROTECT 0x00000001
499 #define OTPS_SW_PROTECT 0x00000002
500 #define OTPS_CID_PROTECT 0x00000004
501 #define OTPS_RCEV_MSK 0x00003f00
502 #define OTPS_RCEV_SHIFT 8
504 /* Fields in the otpcontrol register */
505 #define OTPC_RECWAIT 0xff000000
506 #define OTPC_PROGWAIT 0x00ffff00
507 #define OTPC_PRW_SHIFT 8
508 #define OTPC_MAXFAIL 0x00000038
509 #define OTPC_VSEL 0x00000006
510 #define OTPC_SELVL 0x00000001
512 /* OTP regions (Word offsets from otp size) */
513 #define OTP_SWLIM_OFF (-4)
514 #define OTP_CIDBASE_OFF 0
515 #define OTP_CIDLIM_OFF 4
517 /* Predefined OTP words (Word offset from otp size) */
518 #define OTP_BOUNDARY_OFF (-4)
519 #define OTP_HWSIGN_OFF (-3)
520 #define OTP_SWSIGN_OFF (-2)
521 #define OTP_CIDSIGN_OFF (-1)
522 #define OTP_CID_OFF 0
523 #define OTP_PKG_OFF 1
524 #define OTP_FID_OFF 2
525 #define OTP_RSV_OFF 3
526 #define OTP_LIM_OFF 4
527 #define OTP_RD_OFF 4 /* Redundancy row starts here */
528 #define OTP_RC0_OFF 28 /* Redundancy control word 1 */
529 #define OTP_RC1_OFF 32 /* Redundancy control word 2 */
530 #define OTP_RC_LIM_OFF 36 /* Redundancy control word end */
532 #define OTP_HW_REGION OTPS_HW_PROTECT
533 #define OTP_SW_REGION OTPS_SW_PROTECT
534 #define OTP_CID_REGION OTPS_CID_PROTECT
536 #if OTP_HW_REGION != OTP_HW_RGN
537 #error "incompatible OTP_HW_RGN"
539 #if OTP_SW_REGION != OTP_SW_RGN
540 #error "incompatible OTP_SW_RGN"
542 #if OTP_CID_REGION != OTP_CI_RGN
543 #error "incompatible OTP_CI_RGN"
546 /* Redundancy entry definitions */
547 #define OTP_RCE_ROW_SZ 6
548 #define OTP_RCE_SIGN_MASK 0x7fff
549 #define OTP_RCE_ROW_MASK 0x3f
550 #define OTP_RCE_BITS 21
551 #define OTP_RCE_SIGN_SZ 15
552 #define OTP_RCE_BIT0 1
555 #define OTP_SIGNATURE 0x578a
556 #define OTP_MAGIC 0x4e56
558 static int hndotp_status(void *oh)
560 otpinfo_t *oi = (otpinfo_t *) oh;
561 return (int)(oi->hwprot | oi->signvalid);
564 static int hndotp_size(void *oh)
566 otpinfo_t *oi = (otpinfo_t *) oh;
567 return (int)(oi->size);
570 static u16 hndotp_otpr(void *oh, chipcregs_t *cc, uint wn)
572 otpinfo_t *oi = (otpinfo_t *) oh;
576 ASSERT(wn < ((oi->size / 2) + OTP_RC_LIM_OFF));
579 osh = si_osh(oi->sih);
581 ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
582 return R_REG(osh, &ptr[wn]);
585 static u16 hndotp_otproff(void *oh, chipcregs_t *cc, int woff)
587 otpinfo_t *oi = (otpinfo_t *) oh;
591 ASSERT(woff >= (-((int)oi->size / 2)));
592 ASSERT(woff < OTP_LIM_OFF);
595 osh = si_osh(oi->sih);
597 ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
599 return R_REG(osh, &ptr[(oi->size / 2) + woff]);
602 static u16 hndotp_read_bit(void *oh, chipcregs_t *cc, uint idx)
604 otpinfo_t *oi = (otpinfo_t *) oh;
609 osh = si_osh(oi->sih);
613 otpp = OTPP_START_BUSY | OTPP_READ |
614 ((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) | (col & OTPP_COL_MASK);
616 W_REG(osh, &cc->otpprog, otpp);
617 st = R_REG(osh, &cc->otpprog);
619 ((st & OTPP_START_BUSY) == OTPP_START_BUSY) && (k < OTPP_TRIES);
621 st = R_REG(osh, &cc->otpprog);
623 if (k >= OTPP_TRIES) {
626 if (st & OTPP_READERR) {
629 st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
633 static void *hndotp_init(si_t *sih)
638 u32 cap = 0, clkdiv, otpdiv = 0;
644 idx = si_coreidx(sih);
645 osh = si_osh(oi->sih);
648 cc = si_setcoreidx(sih, SI_CC_IDX);
650 cap = R_REG(osh, &cc->capabilities);
651 if ((cap & CC_CAP_OTPSIZE) == 0) {
656 /* As of right now, support only 4320a2, 4311a1 and 4312 */
657 ASSERT((oi->ccrev == 12) || (oi->ccrev == 17)
658 || (oi->ccrev == 22));
660 ((oi->ccrev == 12) || (oi->ccrev == 17)
661 || (oi->ccrev == 22)))
664 /* Read the OTP byte size. chipcommon rev >= 18 has RCE so the size is
665 * 8 row (64 bytes) smaller
668 1 << (((cap & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT)
669 + CC_CAP_OTPSIZE_BASE);
671 oi->size -= ((OTP_RC0_OFF - OTP_BOUNDARY_OFF) * 2);
673 oi->hwprot = (int)(R_REG(osh, &cc->otpstatus) & OTPS_PROTECT);
676 /* Check the region signature */
677 if (hndotp_otproff(oi, cc, OTP_HWSIGN_OFF) == OTP_SIGNATURE) {
678 oi->signvalid |= OTP_HW_REGION;
679 oi->boundary = hndotp_otproff(oi, cc, OTP_BOUNDARY_OFF);
682 if (hndotp_otproff(oi, cc, OTP_SWSIGN_OFF) == OTP_SIGNATURE)
683 oi->signvalid |= OTP_SW_REGION;
685 if (hndotp_otproff(oi, cc, OTP_CIDSIGN_OFF) == OTP_SIGNATURE)
686 oi->signvalid |= OTP_CID_REGION;
688 /* Set OTP clkdiv for stability */
693 clkdiv = R_REG(osh, &cc->clkdiv);
695 (clkdiv & ~CLKD_OTP) | (otpdiv << CLKD_OTP_SHIFT);
696 W_REG(osh, &cc->clkdiv, clkdiv);
704 si_setcoreidx(sih, idx);
709 static int hndotp_read_region(void *oh, int region, u16 *data, uint *wlen)
711 otpinfo_t *oi = (otpinfo_t *) oh;
716 /* Only support HW region (no active chips use HND OTP SW region) */
717 ASSERT(region == OTP_HW_REGION);
720 st = oi->hwprot | oi->signvalid;
721 if ((st & region) == 0)
722 return BCME_NOTFOUND;
725 ((int)*wlen < oi->boundary / 2) ? *wlen : (uint) oi->boundary / 2;
727 idx = si_coreidx(oi->sih);
728 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
731 for (i = 0; i < (int)*wlen; i++)
732 data[i] = hndotp_otpr(oh, cc, i);
734 si_setcoreidx(oi->sih, idx);
739 static int hndotp_nvread(void *oh, char *data, uint *len)
742 otpinfo_t *oi = (otpinfo_t *) oh;
743 u32 base, bound, lim = 0, st;
744 int i, chunk, gchunks, tsz = 0;
750 /* save the orig core */
751 idx = si_coreidx(oi->sih);
752 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
755 st = hndotp_status(oh);
756 if (!(st & (OTP_HW_REGION | OTP_SW_REGION))) {
761 /* Read the whole otp so we can easily manipulate it */
762 lim = hndotp_size(oh);
763 rawotp = kmalloc(lim, GFP_ATOMIC);
764 if (rawotp == NULL) {
768 for (i = 0; i < (int)(lim / 2); i++)
769 rawotp[i] = hndotp_otpr(oh, cc, i);
771 if ((st & OTP_HW_REGION) == 0) {
772 /* This could be a programming failure in the first
773 * chunk followed by one or more good chunks
775 for (i = 0; i < (int)(lim / 2); i++)
776 if (rawotp[i] == OTP_MAGIC)
779 if (i < (int)(lim / 2)) {
781 bound = (i * 2) + rawotp[i + 1];
787 bound = rawotp[(lim / 2) + OTP_BOUNDARY_OFF];
789 /* There are two cases: 1) The whole otp is used as nvram
790 * and 2) There is a hardware header followed by nvram.
792 if (rawotp[0] == OTP_MAGIC) {
798 /* Find and copy the data */
804 while ((i < (int)(lim / 2)) && (rawotp[i] == OTP_MAGIC)) {
805 int dsz, rsz = rawotp[i + 1];
807 if (((i * 2) + rsz) >= (int)lim) {
808 /* Bad length, try to find another chunk anyway */
811 if (hndcrc16((u8 *) &rawotp[i], rsz,
812 CRC16_INIT_VALUE) == CRC16_GOOD_VALUE) {
813 /* Good crc, copy the vars */
817 if (offset + dsz >= *len) {
820 bcopy((char *)&rawotp[i + 2], &data[offset], dsz);
822 /* Remove extra null characters at the end */
824 data[offset - 1] == 0 && data[offset - 2] == 0)
828 /* bad length or crc didn't check, try to find the next set */
829 if (rawotp[i + (rsz / 2)] == OTP_MAGIC) {
830 /* Assume length is good */
833 while (++i < (int)(lim / 2))
834 if (rawotp[i] == OTP_MAGIC)
846 si_setcoreidx(oi->sih, idx);
851 static otp_fn_t hndotp_fn = {
852 (otp_size_t) hndotp_size,
853 (otp_read_bit_t) hndotp_read_bit,
855 (otp_init_t) hndotp_init,
856 (otp_read_region_t) hndotp_read_region,
857 (otp_nvread_t) hndotp_nvread,
859 (otp_status_t) hndotp_status
862 #endif /* BCMHNDOTP */
865 * Common Code: Compiled for IPX / HND / AUTO
874 int otp_status(void *oh)
876 otpinfo_t *oi = (otpinfo_t *) oh;
878 return oi->fn->status(oh);
881 int otp_size(void *oh)
883 otpinfo_t *oi = (otpinfo_t *) oh;
885 return oi->fn->size(oh);
888 u16 otp_read_bit(void *oh, uint offset)
890 otpinfo_t *oi = (otpinfo_t *) oh;
891 uint idx = si_coreidx(oi->sih);
892 chipcregs_t *cc = si_setcoreidx(oi->sih, SI_CC_IDX);
893 u16 readBit = (u16) oi->fn->read_bit(oh, cc, offset);
894 si_setcoreidx(oi->sih, idx);
898 void *otp_init(si_t *sih)
904 bzero(oi, sizeof(otpinfo_t));
906 oi->ccrev = sih->ccrev;
909 if (OTPTYPE_IPX(oi->ccrev))
914 if (OTPTYPE_HND(oi->ccrev))
918 if (oi->fn == NULL) {
923 oi->osh = si_osh(oi->sih);
925 ret = (oi->fn->init) (sih);
931 otp_read_region(si_t *sih, int region, u16 *data,
937 wasup = si_is_otp_powered(sih);
939 si_otp_power(sih, true);
941 if (!si_is_otp_powered(sih) || si_is_otp_disabled(sih)) {
952 err = (((otpinfo_t *) oh)->fn->read_region) (oh, region, data, wlen);
956 si_otp_power(sih, false);
961 int otp_nvread(void *oh, char *data, uint *len)
963 otpinfo_t *oi = (otpinfo_t *) oh;
965 return oi->fn->nvread(oh, data, len);