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authorNicolas Pitre <nico@cam.org>2005-02-08 17:11:19 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:25:23 +0200
commitf77814dd5728edaf1239d19755d2aa0d8c33d861 (patch)
tree5cf7f73aa367bf152e5fbd16b5173e18bb787dd5 /drivers
parent67d9e95c393d23c229836e28b262dc73d71da784 (diff)
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[MTD] Support for protection register support on Intel FLASH chips
This enables support for reading, writing and locking so called "Protection Registers" present on some flash chips. A subset of them are pre-programmed at the factory with a unique set of values. The rest is user-programmable. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mtd/chips/Kconfig27
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c401
-rw-r--r--drivers/mtd/mtdpart.c28
3 files changed, 339 insertions, 117 deletions
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index d682dbc8157..f4eda1e40d5 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -1,5 +1,5 @@
# drivers/mtd/chips/Kconfig
-# $Id: Kconfig,v 1.13 2004/12/01 15:49:10 nico Exp $
+# $Id: Kconfig,v 1.14 2005/02/08 17:11:15 nico Exp $
menu "RAM/ROM/Flash chip drivers"
depends on MTD!=n
@@ -155,6 +155,31 @@ config MTD_CFI_I8
If your flash chips are interleaved in eights - i.e. you have eight
flash chips addressed by each bus cycle, then say 'Y'.
+config MTD_OTP
+ bool "Protection Registers aka one-time programmable (OTP) bits"
+ depends on MTD_CFI_ADV_OPTIONS
+ default n
+ help
+ This enables support for reading, writing and locking so called
+ "Protection Registers" present on some flash chips.
+ A subset of them are pre-programmed at the factory with a
+ unique set of values. The rest is user-programmable.
+
+ The user-programmable Protection Registers contain one-time
+ programmable (OTP) bits; when programmed, register bits cannot be
+ erased. Each Protection Register can be accessed multiple times to
+ program individual bits, as long as the register remains unlocked.
+
+ Each Protection Register has an associated Lock Register bit. When a
+ Lock Register bit is programmed, the associated Protection Register
+ can only be read; it can no longer be programmed. Additionally,
+ because the Lock Register bits themselves are OTP, when programmed,
+ Lock Register bits cannot be erased. Therefore, when a Protection
+ Register is locked, it cannot be unlocked.
+
+ This feature should therefore be used with extreme care. Any mistake
+ in the programming of OTP bits will waste them.
+
config MTD_CFI_INTELEXT
tristate "Support for Intel/Sharp flash chips"
depends on MTD_GEN_PROBE
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index c630d7532f7..b3f5acf0760 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -4,7 +4,7 @@
*
* (C) 2000 Red Hat. GPL'd
*
- * $Id: cfi_cmdset_0001.c,v 1.165 2005/02/05 02:06:15 nico Exp $
+ * $Id: cfi_cmdset_0001.c,v 1.167 2005/02/08 17:11:15 nico Exp $
*
*
* 10/10/2000 Nicolas Pitre <nico@cam.org>
@@ -48,14 +48,20 @@
#define M50LPW080 0x002F
static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
-//static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
-//static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
static int cfi_intelext_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
static int cfi_intelext_erase_varsize(struct mtd_info *, struct erase_info *);
static void cfi_intelext_sync (struct mtd_info *);
static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_write_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_lock_user_prot_reg (struct mtd_info *, loff_t, size_t);
+static int cfi_intelext_get_fact_prot_info (struct mtd_info *,
+ struct otp_info *, size_t);
+static int cfi_intelext_get_user_prot_info (struct mtd_info *,
+ struct otp_info *, size_t);
static int cfi_intelext_suspend (struct mtd_info *);
static void cfi_intelext_resume (struct mtd_info *);
@@ -423,9 +429,13 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
mtd->eraseregions[i].numblocks);
}
-#if 0
- mtd->read_user_prot_reg = cfi_intelext_read_user_prot_reg;
+#ifdef CONFIG_MTD_OTP
mtd->read_fact_prot_reg = cfi_intelext_read_fact_prot_reg;
+ mtd->read_user_prot_reg = cfi_intelext_read_user_prot_reg;
+ mtd->write_user_prot_reg = cfi_intelext_write_user_prot_reg;
+ mtd->lock_user_prot_reg = cfi_intelext_lock_user_prot_reg;
+ mtd->get_fact_prot_info = cfi_intelext_get_fact_prot_info;
+ mtd->get_user_prot_info = cfi_intelext_get_user_prot_info;
#endif
/* This function has the potential to distort the reality
@@ -565,7 +575,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
resettime:
timeo = jiffies + HZ;
retry:
- if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING)) {
+ if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING || mode == FL_OTP_WRITE)) {
/*
* OK. We have possibility for contension on the write/erase
* operations which are global to the real chip and not per
@@ -1178,111 +1188,11 @@ static int cfi_intelext_read (struct mtd_info *mtd, loff_t from, size_t len, siz
return ret;
}
-#if 0
-static int __xipram cfi_intelext_read_prot_reg (struct mtd_info *mtd,
- loff_t from, size_t len,
- size_t *retlen,
- u_char *buf,
- int base_offst, int reg_sz)
-{
- struct map_info *map = mtd->priv;
- struct cfi_private *cfi = map->fldrv_priv;
- struct cfi_pri_intelext *extp = cfi->cmdset_priv;
- struct flchip *chip;
- int ofs_factor = cfi->interleave * cfi->device_type;
- int count = len;
- int chip_num, offst;
- int ret;
-
- chip_num = ((unsigned int)from/reg_sz);
- offst = from - (reg_sz*chip_num)+base_offst;
-
- while (count) {
- /* Calculate which chip & protection register offset we need */
-
- if (chip_num >= cfi->numchips)
- goto out;
-
- chip = &cfi->chips[chip_num];
-
- spin_lock(chip->mutex);
- ret = get_chip(map, chip, chip->start, FL_JEDEC_QUERY);
- if (ret) {
- spin_unlock(chip->mutex);
- return (len-count)?:ret;
- }
-
- xip_disable(map, chip, chip->start);
-
- if (chip->state != FL_JEDEC_QUERY) {
- map_write(map, CMD(0x90), chip->start);
- chip->state = FL_JEDEC_QUERY;
- }
-
- while (count && ((offst-base_offst) < reg_sz)) {
- *buf = map_read8(map,(chip->start+((extp->ProtRegAddr+1)*ofs_factor)+offst));
- buf++;
- offst++;
- count--;
- }
-
- xip_enable(map, chip, chip->start);
- put_chip(map, chip, chip->start);
- spin_unlock(chip->mutex);
-
- /* Move on to the next chip */
- chip_num++;
- offst = base_offst;
- }
-
- out:
- return len-count;
-}
-
-static int cfi_intelext_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
-{
- struct map_info *map = mtd->priv;
- struct cfi_private *cfi = map->fldrv_priv;
- struct cfi_pri_intelext *extp=cfi->cmdset_priv;
- int base_offst,reg_sz;
-
- /* Check that we actually have some protection registers */
- if(!extp || !(extp->FeatureSupport&64)){
- printk(KERN_WARNING "%s: This flash device has no protection data to read!\n",map->name);
- return 0;
- }
-
- base_offst=(1<<extp->FactProtRegSize);
- reg_sz=(1<<extp->UserProtRegSize);
-
- return cfi_intelext_read_prot_reg(mtd, from, len, retlen, buf, base_offst, reg_sz);
-}
-
-static int cfi_intelext_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
-{
- struct map_info *map = mtd->priv;
- struct cfi_private *cfi = map->fldrv_priv;
- struct cfi_pri_intelext *extp=cfi->cmdset_priv;
- int base_offst,reg_sz;
-
- /* Check that we actually have some protection registers */
- if(!extp || !(extp->FeatureSupport&64)){
- printk(KERN_WARNING "%s: This flash device has no protection data to read!\n",map->name);
- return 0;
- }
-
- base_offst=0;
- reg_sz=(1<<extp->FactProtRegSize);
-
- return cfi_intelext_read_prot_reg(mtd, from, len, retlen, buf, base_offst, reg_sz);
-}
-#endif
-
static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
- unsigned long adr, map_word datum)
+ unsigned long adr, map_word datum, int mode)
{
struct cfi_private *cfi = map->fldrv_priv;
- map_word status, status_OK;
+ map_word status, status_OK, write_cmd;
unsigned long timeo;
int z, ret=0;
@@ -1290,9 +1200,14 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
/* Let's determine this according to the interleave only once */
status_OK = CMD(0x80);
+ switch (mode) {
+ case FL_WRITING: write_cmd = CMD(0x40); break;
+ case FL_OTP_WRITE: write_cmd = CMD(0xc0); break;
+ default: return -EINVAL;
+ }
spin_lock(chip->mutex);
- ret = get_chip(map, chip, adr, FL_WRITING);
+ ret = get_chip(map, chip, adr, mode);
if (ret) {
spin_unlock(chip->mutex);
return ret;
@@ -1301,9 +1216,9 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
XIP_INVAL_CACHED_RANGE(map, adr, map_bankwidth(map));
ENABLE_VPP(map);
xip_disable(map, chip, adr);
- map_write(map, CMD(0x40), adr);
+ map_write(map, write_cmd, adr);
map_write(map, datum, adr);
- chip->state = FL_WRITING;
+ chip->state = mode;
spin_unlock(chip->mutex);
INVALIDATE_CACHED_RANGE(map, adr, map_bankwidth(map));
@@ -1313,7 +1228,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
timeo = jiffies + (HZ/2);
z = 0;
for (;;) {
- if (chip->state != FL_WRITING) {
+ if (chip->state != mode) {
/* Someone's suspended the write. Sleep */
DECLARE_WAITQUEUE(wait, current);
@@ -1401,7 +1316,7 @@ static int cfi_intelext_write_words (struct mtd_info *mtd, loff_t to , size_t le
datum = map_word_load_partial(map, datum, buf, gap, n);
ret = do_write_oneword(map, &cfi->chips[chipnum],
- bus_ofs, datum);
+ bus_ofs, datum, FL_WRITING);
if (ret)
return ret;
@@ -1422,7 +1337,7 @@ static int cfi_intelext_write_words (struct mtd_info *mtd, loff_t to , size_t le
map_word datum = map_word_load(map, buf);
ret = do_write_oneword(map, &cfi->chips[chipnum],
- ofs, datum);
+ ofs, datum, FL_WRITING);
if (ret)
return ret;
@@ -1446,7 +1361,7 @@ static int cfi_intelext_write_words (struct mtd_info *mtd, loff_t to , size_t le
datum = map_word_load_partial(map, datum, buf, 0, len);
ret = do_write_oneword(map, &cfi->chips[chipnum],
- ofs, datum);
+ ofs, datum, FL_WRITING);
if (ret)
return ret;
@@ -2036,6 +1951,262 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
return ret;
}
+#ifdef CONFIG_MTD_OTP
+
+typedef int (*otp_op_t)(struct map_info *map, struct flchip *chip,
+ u_long data_offset, u_char *buf, u_int size,
+ u_long prot_offset, u_int groupno, u_int groupsize);
+
+static int __xipram
+do_otp_read(struct map_info *map, struct flchip *chip, u_long offset,
+ u_char *buf, u_int size, u_long prot, u_int grpno, u_int grpsz)
+{
+ struct cfi_private *cfi = map->fldrv_priv;
+ int ret;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, chip->start, FL_JEDEC_QUERY);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+
+ /* let's ensure we're not reading back cached data from array mode */
+ if (map->inval_cache)
+ map->inval_cache(map, chip->start + offset, size);
+
+ xip_disable(map, chip, chip->start);
+ if (chip->state != FL_JEDEC_QUERY) {
+ map_write(map, CMD(0x90), chip->start);
+ chip->state = FL_JEDEC_QUERY;
+ }
+ map_copy_from(map, buf, chip->start + offset, size);
+ xip_enable(map, chip, chip->start);
+
+ /* then ensure we don't keep OTP data in the cache */
+ if (map->inval_cache)
+ map->inval_cache(map, chip->start + offset, size);
+
+ put_chip(map, chip, chip->start);
+ spin_unlock(chip->mutex);
+ return 0;
+}
+
+static int
+do_otp_write(struct map_info *map, struct flchip *chip, u_long offset,
+ u_char *buf, u_int size, u_long prot, u_int grpno, u_int grpsz)
+{
+ int ret;
+
+ while (size) {
+ unsigned long bus_ofs = offset & ~(map_bankwidth(map)-1);
+ int gap = offset - bus_ofs;
+ int n = min_t(int, size, map_bankwidth(map)-gap);
+ map_word datum = map_word_ff(map);
+
+ datum = map_word_load_partial(map, datum, buf, gap, n);
+ ret = do_write_oneword(map, chip, bus_ofs, datum, FL_OTP_WRITE);
+ if (ret)
+ return ret;
+
+ offset += n;
+ buf += n;
+ size -= n;
+ }
+
+ return 0;
+}
+
+static int
+do_otp_lock(struct map_info *map, struct flchip *chip, u_long offset,
+ u_char *buf, u_int size, u_long prot, u_int grpno, u_int grpsz)
+{
+ struct cfi_private *cfi = map->fldrv_priv;
+ map_word datum;
+
+ /* make sure area matches group boundaries */
+ if (offset != 0 || size != grpsz)
+ return -EXDEV;
+
+ datum = map_word_ff(map);
+ datum = map_word_clr(map, datum, CMD(1 << grpno));
+ return do_write_oneword(map, chip, prot, datum, FL_OTP_WRITE);
+}
+
+static int cfi_intelext_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf,
+ otp_op_t action, int user_regs)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct cfi_pri_intelext *extp = cfi->cmdset_priv;
+ struct flchip *chip;
+ struct cfi_intelext_otpinfo *otp;
+ u_long devsize, reg_prot_offset, data_offset;
+ u_int chip_num, chip_step, field, reg_fact_size, reg_user_size;
+ u_int groups, groupno, groupsize, reg_fact_groups, reg_user_groups;
+ int ret;
+
+ *retlen = 0;
+
+ /* Check that we actually have some OTP registers */
+ if (!extp || !(extp->FeatureSupport & 64) || !extp->NumProtectionFields)
+ return -ENODATA;
+
+ /* we need real chips here not virtual ones */
+ devsize = (1 << cfi->cfiq->DevSize) * cfi->interleave;
+ chip_step = devsize >> cfi->chipshift;
+
+ for (chip_num = 0; chip_num < cfi->numchips; chip_num += chip_step) {
+ chip = &cfi->chips[chip_num];
+ otp = (struct cfi_intelext_otpinfo *)&extp->extra[0];
+
+ /* first OTP region */
+ field = 0;
+ reg_prot_offset = extp->ProtRegAddr;
+ reg_fact_groups = 1;
+ reg_fact_size = 1 << extp->FactProtRegSize;
+ reg_user_groups = 1;
+ reg_user_size = 1 << extp->UserProtRegSize;
+
+ while (len > 0) {
+ /* flash geometry fixup */
+ data_offset = reg_prot_offset + 1;
+ data_offset *= cfi->interleave * cfi->device_type;
+ reg_prot_offset *= cfi->interleave * cfi->device_type;
+ reg_fact_size *= cfi->interleave;
+ reg_user_size *= cfi->interleave;
+
+ if (user_regs) {
+ groups = reg_user_groups;
+ groupsize = reg_user_size;
+ /* skip over factory reg area */
+ groupno = reg_fact_groups;
+ data_offset += reg_fact_groups * reg_fact_size;
+ } else {
+ groups = reg_fact_groups;
+ groupsize = reg_fact_size;
+ groupno = 0;
+ }
+
+ while (groups > 0) {
+ if (!action) {
+ /*
+ * Special case: if action is NULL
+ * we fill buf with otp_info records.
+ */
+ struct otp_info *otpinfo;
+ map_word lockword;
+ len -= sizeof(struct otp_info);
+ if (len <= 0)
+ return -ENOSPC;
+ ret = do_otp_read(map, chip,
+ reg_prot_offset,
+ (u_char *)&lockword,
+ map_bankwidth(map),
+ 0, 0, 0);
+ if (ret)
+ return ret;
+ otpinfo = (struct otp_info *)buf;
+ otpinfo->start = from;
+ otpinfo->length = groupsize;
+ otpinfo->locked =
+ !map_word_bitsset(map, lockword,
+ CMD(1 << groupno));
+ from += groupsize;
+ buf += sizeof(*otpinfo);
+ *retlen += sizeof(*otpinfo);
+ } else if (from >= groupsize) {
+ from -= groupsize;
+ } else {
+ int size = groupsize;
+ data_offset += from;
+ size -= from;
+ from = 0;
+ if (size > len)
+ size = len;
+ ret = action(map, chip, data_offset,
+ buf, size, reg_prot_offset,
+ groupno, groupsize);
+ if (ret < 0)
+ return ret;
+ buf += size;
+ len -= size;
+ *retlen += size;
+ }
+ groupno++;
+ groups--;
+ }
+
+ /* next OTP region */
+ if (++field == extp->NumProtectionFields)
+ break;
+ reg_prot_offset = otp->ProtRegAddr;
+ reg_fact_groups = otp->FactGroups;
+ reg_fact_size = 1 << otp->FactProtRegSize;
+ reg_user_groups = otp->UserGroups;
+ reg_user_size = 1 << otp->UserProtRegSize;
+ otp++;
+ }
+ }
+
+ return 0;
+}
+
+static int cfi_intelext_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
+ size_t len, size_t *retlen,
+ u_char *buf)
+{
+ return cfi_intelext_otp_walk(mtd, from, len, retlen,
+ buf, do_otp_read, 0);
+}
+
+static int cfi_intelext_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
+ size_t len, size_t *retlen,
+ u_char *buf)
+{
+ return cfi_intelext_otp_walk(mtd, from, len, retlen,
+ buf, do_otp_read, 1);
+}
+
+static int cfi_intelext_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
+ size_t len, size_t *retlen,
+ u_char *buf)
+{
+ return cfi_intelext_otp_walk(mtd, from, len, retlen,
+ buf, do_otp_write, 1);
+}
+
+static int cfi_intelext_lock_user_prot_reg(struct mtd_info *mtd,
+ loff_t from, size_t len)
+{
+ size_t retlen;
+ return cfi_intelext_otp_walk(mtd, from, len, &retlen,
+ NULL, do_otp_lock, 1);
+}
+
+static int cfi_intelext_get_fact_prot_info(struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ size_t retlen;
+ int ret;
+
+ ret = cfi_intelext_otp_walk(mtd, 0, len, &retlen, (u_char *)buf, NULL, 0);
+ return ret ? : retlen;
+}
+
+static int cfi_intelext_get_user_prot_info(struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ size_t retlen;
+ int ret;
+
+ ret = cfi_intelext_otp_walk(mtd, 0, len, &retlen, (u_char *)buf, NULL, 1);
+ return ret ? : retlen;
+}
+
+#endif
+
static int cfi_intelext_suspend(struct mtd_info *mtd)
{
struct map_info *map = mtd->priv;
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 96ebb52f24b..b92e6bfffaf 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -5,7 +5,7 @@
*
* This code is GPL
*
- * $Id: mtdpart.c,v 1.51 2004/11/16 18:28:59 dwmw2 Exp $
+ * $Id: mtdpart.c,v 1.53 2005/02/08 17:11:13 nico Exp $
*
* 02-21-2002 Thomas Gleixner <gleixner@autronix.de>
* added support for read_oob, write_oob
@@ -116,6 +116,13 @@ static int part_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t le
len, retlen, buf);
}
+static int part_get_user_prot_info (struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->get_user_prot_info (part->master, buf, len);
+}
+
static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
@@ -124,6 +131,13 @@ static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t le
len, retlen, buf);
}
+static int part_get_fact_prot_info (struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->get_fact_prot_info (part->master, buf, len);
+}
+
static int part_write (struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf)
{
@@ -182,6 +196,12 @@ static int part_write_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t l
len, retlen, buf);
}
+static int part_lock_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->lock_user_prot_reg (part->master, from, len);
+}
+
static int part_writev (struct mtd_info *mtd, const struct kvec *vecs,
unsigned long count, loff_t to, size_t *retlen)
{
@@ -409,6 +429,12 @@ int add_mtd_partitions(struct mtd_info *master,
slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg;
if(master->write_user_prot_reg)
slave->mtd.write_user_prot_reg = part_write_user_prot_reg;
+ if(master->lock_user_prot_reg)
+ slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg;
+ if(master->get_user_prot_info)
+ slave->mtd.get_user_prot_info = part_get_user_prot_info;
+ if(master->get_fact_prot_info)
+ slave->mtd.get_fact_prot_info = part_get_fact_prot_info;
if (master->sync)
slave->mtd.sync = part_sync;
if (!i && master->suspend && master->resume) {