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.
17 #include <linux/delay.h>
18 #include <linux/kernel.h>
19 #include <linux/string.h>
22 #include <linux/module.h>
23 #include <linux/pci.h>
27 #include <bcmendian.h>
31 #include "siutils_priv.h"
34 * There are two different OTP controllers so far:
35 * 1. new IPX OTP controller: chipc 21, >=23
36 * 2. older HND OTP controller: chipc 12, 17, 22
38 * Define BCMHNDOTP to include support for the HND OTP controller.
39 * Define BCMIPXOTP to include support for the IPX OTP controller.
41 * NOTE 1: More than one may be defined
42 * NOTE 2: If none are defined, the default is to include them all.
45 #if !defined(BCMHNDOTP) && !defined(BCMIPXOTP)
50 #define OTPTYPE_HND(ccrev) ((ccrev) < 21 || (ccrev) == 22)
51 #define OTPTYPE_IPX(ccrev) ((ccrev) == 21 || (ccrev) >= 23)
53 #define OTPP_TRIES 10000000 /* # of tries for OTPP */
56 #define MAXNUMRDES 9 /* Maximum OTP redundancy entries */
59 /* OTP common function type */
60 typedef int (*otp_status_t) (void *oh);
61 typedef int (*otp_size_t) (void *oh);
62 typedef void *(*otp_init_t) (si_t *sih);
63 typedef u16(*otp_read_bit_t) (void *oh, chipcregs_t *cc, uint off);
64 typedef int (*otp_read_region_t) (si_t *sih, int region, u16 *data,
66 typedef int (*otp_nvread_t) (void *oh, char *data, uint *len);
68 /* OTP function struct */
69 typedef struct otp_fn_s {
71 otp_read_bit_t read_bit;
73 otp_read_region_t read_region;
79 uint ccrev; /* chipc revision */
80 otp_fn_t *fn; /* OTP functions */
81 si_t *sih; /* Saved sb handle */
86 u16 wsize; /* Size of otp in words */
87 u16 rows; /* Geometry */
88 u16 cols; /* Geometry */
89 u32 status; /* Flag bits (lock/prog/rv).
90 * (Reflected only when OTP is power cycled)
92 u16 hwbase; /* hardware subregion offset */
93 u16 hwlim; /* hardware subregion boundary */
94 u16 swbase; /* software subregion offset */
95 u16 swlim; /* software subregion boundary */
96 u16 fbase; /* fuse subregion offset */
97 u16 flim; /* fuse subregion boundary */
98 int otpgu_base; /* offset to General Use Region */
99 #endif /* BCMIPXOTP */
102 /* HND OTP section */
103 uint size; /* Size of otp in bytes */
104 uint hwprot; /* Hardware protection bits */
105 uint signvalid; /* Signature valid bits */
106 int boundary; /* hw/sw boundary */
107 #endif /* BCMHNDOTP */
110 static otpinfo_t otpinfo;
115 * Exported functions:
120 * ipxotp_read_region()
127 #define HWSW_RGN(rgn) (((rgn) == OTP_HW_RGN) ? "h/w" : "s/w")
130 /* CC revs 21, 24 and 27 OTP General Use Region word offset */
131 #define REVA4_OTPGU_BASE 12
133 /* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
134 #define REVB8_OTPGU_BASE 20
136 /* CC rev 36 OTP General Use Region word offset */
137 #define REV36_OTPGU_BASE 12
139 /* Subregion word offsets in General Use region */
140 #define OTPGU_HSB_OFF 0
141 #define OTPGU_SFB_OFF 1
142 #define OTPGU_CI_OFF 2
143 #define OTPGU_P_OFF 3
144 #define OTPGU_SROM_OFF 4
146 /* Flag bit offsets in General Use region */
147 #define OTPGU_HWP_OFF 60
148 #define OTPGU_SWP_OFF 61
149 #define OTPGU_CIP_OFF 62
150 #define OTPGU_FUSEP_OFF 63
151 #define OTPGU_CIP_MSK 0x4000
152 #define OTPGU_P_MSK 0xf000
153 #define OTPGU_P_SHIFT (OTPGU_HWP_OFF % 16)
156 #define OTP_SZ_FU_324 ((roundup(324, 8))/8) /* 324 bits */
157 #define OTP_SZ_FU_288 (288/8) /* 288 bits */
158 #define OTP_SZ_FU_216 (216/8) /* 216 bits */
159 #define OTP_SZ_FU_72 (72/8) /* 72 bits */
160 #define OTP_SZ_CHECKSUM (16/8) /* 16 bits */
161 #define OTP4315_SWREG_SZ 178 /* 178 bytes */
162 #define OTP_SZ_FU_144 (144/8) /* 144 bits */
164 static int ipxotp_status(void *oh)
166 otpinfo_t *oi = (otpinfo_t *) oh;
167 return (int)(oi->status);
170 /* Return size in bytes */
171 static int ipxotp_size(void *oh)
173 otpinfo_t *oi = (otpinfo_t *) oh;
174 return (int)oi->wsize * 2;
177 static u16 ipxotp_otpr(void *oh, chipcregs_t *cc, uint wn)
181 oi = (otpinfo_t *) oh;
183 ASSERT(wn < oi->wsize);
186 return R_REG(oi->osh, &cc->sromotp[wn]);
189 static u16 ipxotp_read_bit(void *oh, chipcregs_t *cc, uint off)
191 otpinfo_t *oi = (otpinfo_t *) oh;
195 row = off / oi->cols;
196 col = off % oi->cols;
198 otpp = OTPP_START_BUSY |
199 ((OTPPOC_READ << OTPP_OC_SHIFT) & OTPP_OC_MASK) |
200 ((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) |
201 ((col << OTPP_COL_SHIFT) & OTPP_COL_MASK);
202 W_REG(oi->osh, &cc->otpprog, otpp);
205 ((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
206 && (k < OTPP_TRIES); k++)
208 if (k >= OTPP_TRIES) {
211 if (st & OTPP_READERR) {
214 st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
219 /* Calculate max HW/SW region byte size by substracting fuse region and checksum size,
220 * osizew is oi->wsize (OTP size - GU size) in words
222 static int ipxotp_max_rgnsz(si_t *sih, int osizew)
227 case BCM43224_CHIP_ID:
228 case BCM43225_CHIP_ID:
229 ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
231 case BCM4313_CHIP_ID:
232 ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
235 ASSERT(0); /* Don't konw about this chip */
241 static void _ipxotp_init(otpinfo_t *oi, chipcregs_t *cc)
246 /* record word offset of General Use Region for various chipcommon revs */
247 if (oi->sih->ccrev == 21 || oi->sih->ccrev == 24
248 || oi->sih->ccrev == 27) {
249 oi->otpgu_base = REVA4_OTPGU_BASE;
250 } else if (oi->sih->ccrev == 36) {
251 /* OTP size greater than equal to 2KB (128 words), otpgu_base is similar to rev23 */
252 if (oi->wsize >= 128)
253 oi->otpgu_base = REVB8_OTPGU_BASE;
255 oi->otpgu_base = REV36_OTPGU_BASE;
256 } else if (oi->sih->ccrev == 23 || oi->sih->ccrev >= 25) {
257 oi->otpgu_base = REVB8_OTPGU_BASE;
260 /* First issue an init command so the status is up to date */
262 OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
264 W_REG(oi->osh, &cc->otpprog, otpp);
266 ((st = R_REG(oi->osh, &cc->otpprog)) & OTPP_START_BUSY)
267 && (k < OTPP_TRIES); k++)
269 if (k >= OTPP_TRIES) {
273 /* Read OTP lock bits and subregion programmed indication bits */
274 oi->status = R_REG(oi->osh, &cc->otpstatus);
276 if ((oi->sih->chip == BCM43224_CHIP_ID)
277 || (oi->sih->chip == BCM43225_CHIP_ID)) {
280 (ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_P_OFF) &
283 oi->status |= (p_bits << OTPS_GUP_SHIFT);
287 * h/w region base and fuse region limit are fixed to the top and
288 * the bottom of the general use region. Everything else can be flexible.
290 oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
291 oi->hwlim = oi->wsize;
292 if (oi->status & OTPS_GUP_HW) {
294 ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
295 oi->swbase = oi->hwlim;
297 oi->swbase = oi->hwbase;
299 /* subtract fuse and checksum from beginning */
300 oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
302 if (oi->status & OTPS_GUP_SW) {
304 ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
305 oi->fbase = oi->swlim;
307 oi->fbase = oi->swbase;
309 oi->flim = oi->wsize;
312 static void *ipxotp_init(si_t *sih)
318 /* Make sure we're running IPX OTP */
319 ASSERT(OTPTYPE_IPX(sih->ccrev));
320 if (!OTPTYPE_IPX(sih->ccrev))
323 /* Make sure OTP is not disabled */
324 if (si_is_otp_disabled(sih)) {
328 /* Make sure OTP is powered up */
329 if (!si_is_otp_powered(sih)) {
335 /* Check for otp size */
336 switch ((sih->cccaps & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
355 case 7: /* 16x64 *//* 1024 bits */
361 /* Don't know the geometry */
365 /* Retrieve OTP region info */
366 idx = si_coreidx(sih);
367 cc = si_setcoreidx(sih, SI_CC_IDX);
370 _ipxotp_init(oi, cc);
372 si_setcoreidx(sih, idx);
377 static int ipxotp_read_region(void *oh, int region, u16 *data, uint *wlen)
379 otpinfo_t *oi = (otpinfo_t *) oh;
384 /* Validate region selection */
387 sz = (uint) oi->hwlim - oi->hwbase;
388 if (!(oi->status & OTPS_GUP_HW)) {
390 return BCME_NOTFOUND;
394 return BCME_BUFTOOSHORT;
399 sz = ((uint) oi->swlim - oi->swbase);
400 if (!(oi->status & OTPS_GUP_SW)) {
402 return BCME_NOTFOUND;
406 return BCME_BUFTOOSHORT;
412 if (!(oi->status & OTPS_GUP_CI)) {
414 return BCME_NOTFOUND;
418 return BCME_BUFTOOSHORT;
420 base = oi->otpgu_base + OTPGU_CI_OFF;
423 sz = (uint) oi->flim - oi->fbase;
424 if (!(oi->status & OTPS_GUP_FUSE)) {
426 return BCME_NOTFOUND;
430 return BCME_BUFTOOSHORT;
435 sz = ((uint) oi->flim - oi->hwbase);
436 if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
438 return BCME_NOTFOUND;
442 return BCME_BUFTOOSHORT;
450 idx = si_coreidx(oi->sih);
451 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
455 for (i = 0; i < sz; i++)
456 data[i] = ipxotp_otpr(oh, cc, base + i);
458 si_setcoreidx(oi->sih, idx);
463 static int ipxotp_nvread(void *oh, char *data, uint *len)
465 return BCME_UNSUPPORTED;
468 static otp_fn_t ipxotp_fn = {
469 (otp_size_t) ipxotp_size,
470 (otp_read_bit_t) ipxotp_read_bit,
472 (otp_init_t) ipxotp_init,
473 (otp_read_region_t) ipxotp_read_region,
474 (otp_nvread_t) ipxotp_nvread,
476 (otp_status_t) ipxotp_status
479 #endif /* BCMIPXOTP */
484 * Exported functions:
489 * hndotp_read_region()
496 /* Fields in otpstatus */
497 #define OTPS_PROGFAIL 0x80000000
498 #define OTPS_PROTECT 0x00000007
499 #define OTPS_HW_PROTECT 0x00000001
500 #define OTPS_SW_PROTECT 0x00000002
501 #define OTPS_CID_PROTECT 0x00000004
502 #define OTPS_RCEV_MSK 0x00003f00
503 #define OTPS_RCEV_SHIFT 8
505 /* Fields in the otpcontrol register */
506 #define OTPC_RECWAIT 0xff000000
507 #define OTPC_PROGWAIT 0x00ffff00
508 #define OTPC_PRW_SHIFT 8
509 #define OTPC_MAXFAIL 0x00000038
510 #define OTPC_VSEL 0x00000006
511 #define OTPC_SELVL 0x00000001
513 /* OTP regions (Word offsets from otp size) */
514 #define OTP_SWLIM_OFF (-4)
515 #define OTP_CIDBASE_OFF 0
516 #define OTP_CIDLIM_OFF 4
518 /* Predefined OTP words (Word offset from otp size) */
519 #define OTP_BOUNDARY_OFF (-4)
520 #define OTP_HWSIGN_OFF (-3)
521 #define OTP_SWSIGN_OFF (-2)
522 #define OTP_CIDSIGN_OFF (-1)
523 #define OTP_CID_OFF 0
524 #define OTP_PKG_OFF 1
525 #define OTP_FID_OFF 2
526 #define OTP_RSV_OFF 3
527 #define OTP_LIM_OFF 4
528 #define OTP_RD_OFF 4 /* Redundancy row starts here */
529 #define OTP_RC0_OFF 28 /* Redundancy control word 1 */
530 #define OTP_RC1_OFF 32 /* Redundancy control word 2 */
531 #define OTP_RC_LIM_OFF 36 /* Redundancy control word end */
533 #define OTP_HW_REGION OTPS_HW_PROTECT
534 #define OTP_SW_REGION OTPS_SW_PROTECT
535 #define OTP_CID_REGION OTPS_CID_PROTECT
537 #if OTP_HW_REGION != OTP_HW_RGN
538 #error "incompatible OTP_HW_RGN"
540 #if OTP_SW_REGION != OTP_SW_RGN
541 #error "incompatible OTP_SW_RGN"
543 #if OTP_CID_REGION != OTP_CI_RGN
544 #error "incompatible OTP_CI_RGN"
547 /* Redundancy entry definitions */
548 #define OTP_RCE_ROW_SZ 6
549 #define OTP_RCE_SIGN_MASK 0x7fff
550 #define OTP_RCE_ROW_MASK 0x3f
551 #define OTP_RCE_BITS 21
552 #define OTP_RCE_SIGN_SZ 15
553 #define OTP_RCE_BIT0 1
556 #define OTP_SIGNATURE 0x578a
557 #define OTP_MAGIC 0x4e56
559 static int hndotp_status(void *oh)
561 otpinfo_t *oi = (otpinfo_t *) oh;
562 return (int)(oi->hwprot | oi->signvalid);
565 static int hndotp_size(void *oh)
567 otpinfo_t *oi = (otpinfo_t *) oh;
568 return (int)(oi->size);
571 static u16 hndotp_otpr(void *oh, chipcregs_t *cc, uint wn)
573 otpinfo_t *oi = (otpinfo_t *) oh;
574 struct osl_info *osh;
577 ASSERT(wn < ((oi->size / 2) + OTP_RC_LIM_OFF));
580 osh = si_osh(oi->sih);
582 ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
583 return R_REG(osh, &ptr[wn]);
586 static u16 hndotp_otproff(void *oh, chipcregs_t *cc, int woff)
588 otpinfo_t *oi = (otpinfo_t *) oh;
589 struct osl_info *osh;
592 ASSERT(woff >= (-((int)oi->size / 2)));
593 ASSERT(woff < OTP_LIM_OFF);
596 osh = si_osh(oi->sih);
598 ptr = (volatile u16 *)((volatile char *)cc + CC_SROM_OTP);
600 return R_REG(osh, &ptr[(oi->size / 2) + woff]);
603 static u16 hndotp_read_bit(void *oh, chipcregs_t *cc, uint idx)
605 otpinfo_t *oi = (otpinfo_t *) oh;
608 struct osl_info *osh;
610 osh = si_osh(oi->sih);
614 otpp = OTPP_START_BUSY | OTPP_READ |
615 ((row << OTPP_ROW_SHIFT) & OTPP_ROW_MASK) | (col & OTPP_COL_MASK);
617 W_REG(osh, &cc->otpprog, otpp);
618 st = R_REG(osh, &cc->otpprog);
620 ((st & OTPP_START_BUSY) == OTPP_START_BUSY) && (k < OTPP_TRIES);
622 st = R_REG(osh, &cc->otpprog);
624 if (k >= OTPP_TRIES) {
627 if (st & OTPP_READERR) {
630 st = (st & OTPP_VALUE_MASK) >> OTPP_VALUE_SHIFT;
634 static void *hndotp_init(si_t *sih)
639 u32 cap = 0, clkdiv, otpdiv = 0;
641 struct osl_info *osh;
645 idx = si_coreidx(sih);
646 osh = si_osh(oi->sih);
649 cc = si_setcoreidx(sih, SI_CC_IDX);
651 cap = R_REG(osh, &cc->capabilities);
652 if ((cap & CC_CAP_OTPSIZE) == 0) {
657 /* As of right now, support only 4320a2, 4311a1 and 4312 */
658 ASSERT((oi->ccrev == 12) || (oi->ccrev == 17)
659 || (oi->ccrev == 22));
661 ((oi->ccrev == 12) || (oi->ccrev == 17)
662 || (oi->ccrev == 22)))
665 /* Read the OTP byte size. chipcommon rev >= 18 has RCE so the size is
666 * 8 row (64 bytes) smaller
669 1 << (((cap & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT)
670 + CC_CAP_OTPSIZE_BASE);
672 oi->size -= ((OTP_RC0_OFF - OTP_BOUNDARY_OFF) * 2);
674 oi->hwprot = (int)(R_REG(osh, &cc->otpstatus) & OTPS_PROTECT);
677 /* Check the region signature */
678 if (hndotp_otproff(oi, cc, OTP_HWSIGN_OFF) == OTP_SIGNATURE) {
679 oi->signvalid |= OTP_HW_REGION;
680 oi->boundary = hndotp_otproff(oi, cc, OTP_BOUNDARY_OFF);
683 if (hndotp_otproff(oi, cc, OTP_SWSIGN_OFF) == OTP_SIGNATURE)
684 oi->signvalid |= OTP_SW_REGION;
686 if (hndotp_otproff(oi, cc, OTP_CIDSIGN_OFF) == OTP_SIGNATURE)
687 oi->signvalid |= OTP_CID_REGION;
689 /* Set OTP clkdiv for stability */
694 clkdiv = R_REG(osh, &cc->clkdiv);
696 (clkdiv & ~CLKD_OTP) | (otpdiv << CLKD_OTP_SHIFT);
697 W_REG(osh, &cc->clkdiv, clkdiv);
705 si_setcoreidx(sih, idx);
710 static int hndotp_read_region(void *oh, int region, u16 *data, uint *wlen)
712 otpinfo_t *oi = (otpinfo_t *) oh;
717 /* Only support HW region (no active chips use HND OTP SW region) */
718 ASSERT(region == OTP_HW_REGION);
721 st = oi->hwprot | oi->signvalid;
722 if ((st & region) == 0)
723 return BCME_NOTFOUND;
726 ((int)*wlen < oi->boundary / 2) ? *wlen : (uint) oi->boundary / 2;
728 idx = si_coreidx(oi->sih);
729 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
732 for (i = 0; i < (int)*wlen; i++)
733 data[i] = hndotp_otpr(oh, cc, i);
735 si_setcoreidx(oi->sih, idx);
740 static int hndotp_nvread(void *oh, char *data, uint *len)
743 otpinfo_t *oi = (otpinfo_t *) oh;
744 u32 base, bound, lim = 0, st;
745 int i, chunk, gchunks, tsz = 0;
751 /* save the orig core */
752 idx = si_coreidx(oi->sih);
753 cc = si_setcoreidx(oi->sih, SI_CC_IDX);
756 st = hndotp_status(oh);
757 if (!(st & (OTP_HW_REGION | OTP_SW_REGION))) {
762 /* Read the whole otp so we can easily manipulate it */
763 lim = hndotp_size(oh);
764 rawotp = kmalloc(lim, GFP_ATOMIC);
765 if (rawotp == NULL) {
769 for (i = 0; i < (int)(lim / 2); i++)
770 rawotp[i] = hndotp_otpr(oh, cc, i);
772 if ((st & OTP_HW_REGION) == 0) {
773 /* This could be a programming failure in the first
774 * chunk followed by one or more good chunks
776 for (i = 0; i < (int)(lim / 2); i++)
777 if (rawotp[i] == OTP_MAGIC)
780 if (i < (int)(lim / 2)) {
782 bound = (i * 2) + rawotp[i + 1];
788 bound = rawotp[(lim / 2) + OTP_BOUNDARY_OFF];
790 /* There are two cases: 1) The whole otp is used as nvram
791 * and 2) There is a hardware header followed by nvram.
793 if (rawotp[0] == OTP_MAGIC) {
799 /* Find and copy the data */
805 while ((i < (int)(lim / 2)) && (rawotp[i] == OTP_MAGIC)) {
806 int dsz, rsz = rawotp[i + 1];
808 if (((i * 2) + rsz) >= (int)lim) {
809 /* Bad length, try to find another chunk anyway */
812 if (hndcrc16((u8 *) &rawotp[i], rsz,
813 CRC16_INIT_VALUE) == CRC16_GOOD_VALUE) {
814 /* Good crc, copy the vars */
818 if (offset + dsz >= *len) {
821 bcopy((char *)&rawotp[i + 2], &data[offset], dsz);
823 /* Remove extra null characters at the end */
825 data[offset - 1] == 0 && data[offset - 2] == 0)
829 /* bad length or crc didn't check, try to find the next set */
830 if (rawotp[i + (rsz / 2)] == OTP_MAGIC) {
831 /* Assume length is good */
834 while (++i < (int)(lim / 2))
835 if (rawotp[i] == OTP_MAGIC)
847 si_setcoreidx(oi->sih, idx);
852 static otp_fn_t hndotp_fn = {
853 (otp_size_t) hndotp_size,
854 (otp_read_bit_t) hndotp_read_bit,
856 (otp_init_t) hndotp_init,
857 (otp_read_region_t) hndotp_read_region,
858 (otp_nvread_t) hndotp_nvread,
860 (otp_status_t) hndotp_status
863 #endif /* BCMHNDOTP */
866 * Common Code: Compiled for IPX / HND / AUTO
875 int otp_status(void *oh)
877 otpinfo_t *oi = (otpinfo_t *) oh;
879 return oi->fn->status(oh);
882 int otp_size(void *oh)
884 otpinfo_t *oi = (otpinfo_t *) oh;
886 return oi->fn->size(oh);
889 u16 otp_read_bit(void *oh, uint offset)
891 otpinfo_t *oi = (otpinfo_t *) oh;
892 uint idx = si_coreidx(oi->sih);
893 chipcregs_t *cc = si_setcoreidx(oi->sih, SI_CC_IDX);
894 u16 readBit = (u16) oi->fn->read_bit(oh, cc, offset);
895 si_setcoreidx(oi->sih, idx);
899 void *otp_init(si_t *sih)
905 memset(oi, 0, sizeof(otpinfo_t));
907 oi->ccrev = sih->ccrev;
910 if (OTPTYPE_IPX(oi->ccrev))
915 if (OTPTYPE_HND(oi->ccrev))
919 if (oi->fn == NULL) {
924 oi->osh = si_osh(oi->sih);
926 ret = (oi->fn->init) (sih);
932 otp_read_region(si_t *sih, int region, u16 *data,
938 wasup = si_is_otp_powered(sih);
940 si_otp_power(sih, true);
942 if (!si_is_otp_powered(sih) || si_is_otp_disabled(sih)) {
953 err = (((otpinfo_t *) oh)->fn->read_region) (oh, region, data, wlen);
957 si_otp_power(sih, false);
962 int otp_nvread(void *oh, char *data, uint *len)
964 otpinfo_t *oi = (otpinfo_t *) oh;
966 return oi->fn->nvread(oh, data, len);