summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/brcm80211/brcmsmac/otp.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/otp.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmsmac/otp.c410
1 files changed, 0 insertions, 410 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/otp.c b/drivers/net/wireless/brcm80211/brcmsmac/otp.c
deleted file mode 100644
index f1ca12625860..000000000000
--- a/drivers/net/wireless/brcm80211/brcmsmac/otp.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-
-#include <brcm_hw_ids.h>
-#include <chipcommon.h>
-#include "aiutils.h"
-#include "otp.h"
-
-#define OTPS_GUP_MASK 0x00000f00
-#define OTPS_GUP_SHIFT 8
-/* h/w subregion is programmed */
-#define OTPS_GUP_HW 0x00000100
-/* s/w subregion is programmed */
-#define OTPS_GUP_SW 0x00000200
-/* chipid/pkgopt subregion is programmed */
-#define OTPS_GUP_CI 0x00000400
-/* fuse subregion is programmed */
-#define OTPS_GUP_FUSE 0x00000800
-
-/* Fields in otpprog in rev >= 21 */
-#define OTPP_COL_MASK 0x000000ff
-#define OTPP_COL_SHIFT 0
-#define OTPP_ROW_MASK 0x0000ff00
-#define OTPP_ROW_SHIFT 8
-#define OTPP_OC_MASK 0x0f000000
-#define OTPP_OC_SHIFT 24
-#define OTPP_READERR 0x10000000
-#define OTPP_VALUE_MASK 0x20000000
-#define OTPP_VALUE_SHIFT 29
-#define OTPP_START_BUSY 0x80000000
-#define OTPP_READ 0x40000000
-
-/* Opcodes for OTPP_OC field */
-#define OTPPOC_READ 0
-#define OTPPOC_BIT_PROG 1
-#define OTPPOC_VERIFY 3
-#define OTPPOC_INIT 4
-#define OTPPOC_SET 5
-#define OTPPOC_RESET 6
-#define OTPPOC_OCST 7
-#define OTPPOC_ROW_LOCK 8
-#define OTPPOC_PRESCN_TEST 9
-
-#define OTPTYPE_IPX(ccrev) ((ccrev) == 21 || (ccrev) >= 23)
-
-#define OTPP_TRIES 10000000 /* # of tries for OTPP */
-
-#define MAXNUMRDES 9 /* Maximum OTP redundancy entries */
-
-/* Fixed size subregions sizes in words */
-#define OTPGU_CI_SZ 2
-
-struct otpinfo;
-
-/* OTP function struct */
-struct otp_fn_s {
- int (*init)(struct si_pub *sih, struct otpinfo *oi);
- int (*read_region)(struct otpinfo *oi, int region, u16 *data,
- uint *wlen);
-};
-
-struct otpinfo {
- struct bcma_device *core; /* chipc core */
- const struct otp_fn_s *fn; /* OTP functions */
- struct si_pub *sih; /* Saved sb handle */
-
- /* IPX OTP section */
- u16 wsize; /* Size of otp in words */
- u16 rows; /* Geometry */
- u16 cols; /* Geometry */
- u32 status; /* Flag bits (lock/prog/rv).
- * (Reflected only when OTP is power cycled)
- */
- u16 hwbase; /* hardware subregion offset */
- u16 hwlim; /* hardware subregion boundary */
- u16 swbase; /* software subregion offset */
- u16 swlim; /* software subregion boundary */
- u16 fbase; /* fuse subregion offset */
- u16 flim; /* fuse subregion boundary */
- int otpgu_base; /* offset to General Use Region */
-};
-
-/* OTP layout */
-/* CC revs 21, 24 and 27 OTP General Use Region word offset */
-#define REVA4_OTPGU_BASE 12
-
-/* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
-#define REVB8_OTPGU_BASE 20
-
-/* CC rev 36 OTP General Use Region word offset */
-#define REV36_OTPGU_BASE 12
-
-/* Subregion word offsets in General Use region */
-#define OTPGU_HSB_OFF 0
-#define OTPGU_SFB_OFF 1
-#define OTPGU_CI_OFF 2
-#define OTPGU_P_OFF 3
-#define OTPGU_SROM_OFF 4
-
-/* Flag bit offsets in General Use region */
-#define OTPGU_HWP_OFF 60
-#define OTPGU_SWP_OFF 61
-#define OTPGU_CIP_OFF 62
-#define OTPGU_FUSEP_OFF 63
-#define OTPGU_CIP_MSK 0x4000
-#define OTPGU_P_MSK 0xf000
-#define OTPGU_P_SHIFT (OTPGU_HWP_OFF % 16)
-
-/* OTP Size */
-#define OTP_SZ_FU_324 ((roundup(324, 8))/8) /* 324 bits */
-#define OTP_SZ_FU_288 (288/8) /* 288 bits */
-#define OTP_SZ_FU_216 (216/8) /* 216 bits */
-#define OTP_SZ_FU_72 (72/8) /* 72 bits */
-#define OTP_SZ_CHECKSUM (16/8) /* 16 bits */
-#define OTP4315_SWREG_SZ 178 /* 178 bytes */
-#define OTP_SZ_FU_144 (144/8) /* 144 bits */
-
-static u16
-ipxotp_otpr(struct otpinfo *oi, uint wn)
-{
- return bcma_read16(oi->core,
- CHIPCREGOFFS(sromotp[wn]));
-}
-
-/*
- * Calculate max HW/SW region byte size by subtracting fuse region
- * and checksum size, osizew is oi->wsize (OTP size - GU size) in words
- */
-static int ipxotp_max_rgnsz(struct si_pub *sih, int osizew)
-{
- int ret = 0;
-
- switch (ai_get_chip_id(sih)) {
- case BCM43224_CHIP_ID:
- case BCM43225_CHIP_ID:
- ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
- break;
- case BCM4313_CHIP_ID:
- ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
- break;
- default:
- break; /* Don't know about this chip */
- }
-
- return ret;
-}
-
-static void _ipxotp_init(struct otpinfo *oi)
-{
- uint k;
- u32 otpp, st;
- int ccrev = ai_get_ccrev(oi->sih);
-
-
- /*
- * record word offset of General Use Region
- * for various chipcommon revs
- */
- if (ccrev == 21 || ccrev == 24
- || ccrev == 27) {
- oi->otpgu_base = REVA4_OTPGU_BASE;
- } else if (ccrev == 36) {
- /*
- * OTP size greater than equal to 2KB (128 words),
- * otpgu_base is similar to rev23
- */
- if (oi->wsize >= 128)
- oi->otpgu_base = REVB8_OTPGU_BASE;
- else
- oi->otpgu_base = REV36_OTPGU_BASE;
- } else if (ccrev == 23 || ccrev >= 25) {
- oi->otpgu_base = REVB8_OTPGU_BASE;
- }
-
- /* First issue an init command so the status is up to date */
- otpp =
- OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
-
- bcma_write32(oi->core, CHIPCREGOFFS(otpprog), otpp);
- st = bcma_read32(oi->core, CHIPCREGOFFS(otpprog));
- for (k = 0; (st & OTPP_START_BUSY) && (k < OTPP_TRIES); k++)
- st = bcma_read32(oi->core, CHIPCREGOFFS(otpprog));
- if (k >= OTPP_TRIES)
- return;
-
- /* Read OTP lock bits and subregion programmed indication bits */
- oi->status = bcma_read32(oi->core, CHIPCREGOFFS(otpstatus));
-
- if ((ai_get_chip_id(oi->sih) == BCM43224_CHIP_ID)
- || (ai_get_chip_id(oi->sih) == BCM43225_CHIP_ID)) {
- u32 p_bits;
- p_bits = (ipxotp_otpr(oi, oi->otpgu_base + OTPGU_P_OFF) &
- OTPGU_P_MSK) >> OTPGU_P_SHIFT;
- oi->status |= (p_bits << OTPS_GUP_SHIFT);
- }
-
- /*
- * h/w region base and fuse region limit are fixed to
- * the top and the bottom of the general use region.
- * Everything else can be flexible.
- */
- oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
- oi->hwlim = oi->wsize;
- if (oi->status & OTPS_GUP_HW) {
- oi->hwlim =
- ipxotp_otpr(oi, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
- oi->swbase = oi->hwlim;
- } else
- oi->swbase = oi->hwbase;
-
- /* subtract fuse and checksum from beginning */
- oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
-
- if (oi->status & OTPS_GUP_SW) {
- oi->swlim =
- ipxotp_otpr(oi, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
- oi->fbase = oi->swlim;
- } else
- oi->fbase = oi->swbase;
-
- oi->flim = oi->wsize;
-}
-
-static int ipxotp_init(struct si_pub *sih, struct otpinfo *oi)
-{
- /* Make sure we're running IPX OTP */
- if (!OTPTYPE_IPX(ai_get_ccrev(sih)))
- return -EBADE;
-
- /* Make sure OTP is not disabled */
- if (ai_is_otp_disabled(sih))
- return -EBADE;
-
- /* Check for otp size */
- switch ((ai_get_cccaps(sih) & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
- case 0:
- /* Nothing there */
- return -EBADE;
- case 1: /* 32x64 */
- oi->rows = 32;
- oi->cols = 64;
- oi->wsize = 128;
- break;
- case 2: /* 64x64 */
- oi->rows = 64;
- oi->cols = 64;
- oi->wsize = 256;
- break;
- case 5: /* 96x64 */
- oi->rows = 96;
- oi->cols = 64;
- oi->wsize = 384;
- break;
- case 7: /* 16x64 *//* 1024 bits */
- oi->rows = 16;
- oi->cols = 64;
- oi->wsize = 64;
- break;
- default:
- /* Don't know the geometry */
- return -EBADE;
- }
-
- /* Retrieve OTP region info */
- _ipxotp_init(oi);
- return 0;
-}
-
-static int
-ipxotp_read_region(struct otpinfo *oi, int region, u16 *data, uint *wlen)
-{
- uint base, i, sz;
-
- /* Validate region selection */
- switch (region) {
- case OTP_HW_RGN:
- sz = (uint) oi->hwlim - oi->hwbase;
- if (!(oi->status & OTPS_GUP_HW)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->hwbase;
- break;
- case OTP_SW_RGN:
- sz = ((uint) oi->swlim - oi->swbase);
- if (!(oi->status & OTPS_GUP_SW)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->swbase;
- break;
- case OTP_CI_RGN:
- sz = OTPGU_CI_SZ;
- if (!(oi->status & OTPS_GUP_CI)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->otpgu_base + OTPGU_CI_OFF;
- break;
- case OTP_FUSE_RGN:
- sz = (uint) oi->flim - oi->fbase;
- if (!(oi->status & OTPS_GUP_FUSE)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->fbase;
- break;
- case OTP_ALL_RGN:
- sz = ((uint) oi->flim - oi->hwbase);
- if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->hwbase;
- break;
- default:
- return -EINVAL;
- }
-
- /* Read the data */
- for (i = 0; i < sz; i++)
- data[i] = ipxotp_otpr(oi, base + i);
-
- *wlen = sz;
- return 0;
-}
-
-static const struct otp_fn_s ipxotp_fn = {
- (int (*)(struct si_pub *, struct otpinfo *)) ipxotp_init,
- (int (*)(struct otpinfo *, int, u16 *, uint *)) ipxotp_read_region,
-};
-
-static int otp_init(struct si_pub *sih, struct otpinfo *oi)
-{
- int ret;
-
- memset(oi, 0, sizeof(struct otpinfo));
-
- oi->core = ai_findcore(sih, BCMA_CORE_CHIPCOMMON, 0);
-
- if (OTPTYPE_IPX(ai_get_ccrev(sih)))
- oi->fn = &ipxotp_fn;
-
- if (oi->fn == NULL)
- return -EBADE;
-
- oi->sih = sih;
-
- ret = (oi->fn->init)(sih, oi);
-
- return ret;
-}
-
-int
-otp_read_region(struct si_pub *sih, int region, u16 *data, uint *wlen) {
- struct otpinfo otpinfo;
- struct otpinfo *oi = &otpinfo;
- int err = 0;
-
- if (ai_is_otp_disabled(sih)) {
- err = -EPERM;
- goto out;
- }
-
- err = otp_init(sih, oi);
- if (err)
- goto out;
-
- err = ((oi)->fn->read_region)(oi, region, data, wlen);
-
- out:
- return err;
-}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-26 20:55:47 +0000