]> git.karo-electronics.de Git - karo-tx-uboot.git/blobdiff - drivers/mtd/mtdpart.c
Update from 2013.01 to 2013.07
[karo-tx-uboot.git] / drivers / mtd / mtdpart.c
index 96dcda2b2ba4a4bfa7226c14a9c9073dacc645fe..9dfe7bbc9a9244dbb7e56f328b3046d2d2c3fbe0 100644 (file)
@@ -52,17 +52,11 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
        int res;
 
        stats = part->master->ecc_stats;
-
-       if (from >= mtd->size)
-               len = 0;
-       else if (from + len > mtd->size)
-               len = mtd->size - from;
-       res = part->master->read(part->master, from + part->offset,
-                                  len, retlen, buf);
+       res = mtd_read(part->master, from + part->offset, len, retlen, buf);
        if (unlikely(res)) {
-               if (res == -EUCLEAN)
+               if (mtd_is_bitflip(res))
                        mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
-               if (res == -EBADMSG)
+               if (mtd_is_eccerr(res))
                        mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed;
        }
        return res;
@@ -78,12 +72,12 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
                return -EINVAL;
        if (ops->datbuf && from + ops->len > mtd->size)
                return -EINVAL;
-       res = part->master->read_oob(part->master, from + part->offset, ops);
+       res = mtd_read_oob(part->master, from + part->offset, ops);
 
        if (unlikely(res)) {
-               if (res == -EUCLEAN)
+               if (mtd_is_bitflip(res))
                        mtd->ecc_stats.corrected++;
-               if (res == -EBADMSG)
+               if (mtd_is_eccerr(res))
                        mtd->ecc_stats.failed++;
        }
        return res;
@@ -93,58 +87,35 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
                size_t len, size_t *retlen, u_char *buf)
 {
        struct mtd_part *part = PART(mtd);
-       return part->master->read_user_prot_reg(part->master, from,
-                                       len, retlen, buf);
+       return mtd_read_user_prot_reg(part->master, from, 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);
+       return mtd_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)
 {
        struct mtd_part *part = PART(mtd);
-       return part->master->read_fact_prot_reg(part->master, from,
-                                       len, retlen, buf);
+       return mtd_read_fact_prot_reg(part->master, from, 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);
+       return mtd_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)
 {
        struct mtd_part *part = PART(mtd);
-       if (!(mtd->flags & MTD_WRITEABLE))
-               return -EROFS;
-       if (to >= mtd->size)
-               len = 0;
-       else if (to + len > mtd->size)
-               len = mtd->size - to;
-       return part->master->write(part->master, to + part->offset,
-                                   len, retlen, buf);
-}
-
-static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
-               size_t *retlen, const u_char *buf)
-{
-       struct mtd_part *part = PART(mtd);
-       if (!(mtd->flags & MTD_WRITEABLE))
-               return -EROFS;
-       if (to >= mtd->size)
-               len = 0;
-       else if (to + len > mtd->size)
-               len = mtd->size - to;
-       return part->master->panic_write(part->master, to + part->offset,
-                                   len, retlen, buf);
+       return mtd_write(part->master, to + part->offset, len, retlen, buf);
 }
 
 static int part_write_oob(struct mtd_info *mtd, loff_t to,
@@ -152,41 +123,34 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to,
 {
        struct mtd_part *part = PART(mtd);
 
-       if (!(mtd->flags & MTD_WRITEABLE))
-               return -EROFS;
-
        if (to >= mtd->size)
                return -EINVAL;
        if (ops->datbuf && to + ops->len > mtd->size)
                return -EINVAL;
-       return part->master->write_oob(part->master, to + part->offset, ops);
+       return mtd_write_oob(part->master, to + part->offset, ops);
 }
 
 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
                size_t len, size_t *retlen, u_char *buf)
 {
        struct mtd_part *part = PART(mtd);
-       return part->master->write_user_prot_reg(part->master, from,
-                                       len, retlen, buf);
+       return mtd_write_user_prot_reg(part->master, from, 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);
+       return mtd_lock_user_prot_reg(part->master, from, len);
 }
 
 static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
        struct mtd_part *part = PART(mtd);
        int ret;
-       if (!(mtd->flags & MTD_WRITEABLE))
-               return -EROFS;
-       if (instr->addr >= mtd->size)
-               return -EINVAL;
+
        instr->addr += part->offset;
-       ret = part->master->erase(part->master, instr);
+       ret = mtd_erase(part->master, instr);
        if (ret) {
                if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
                        instr->fail_addr -= part->offset;
@@ -197,7 +161,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 void mtd_erase_callback(struct erase_info *instr)
 {
-       if (instr->mtd->erase == part_erase) {
+       if (instr->mtd->_erase == part_erase) {
                struct mtd_part *part = PART(instr->mtd);
 
                if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
@@ -211,32 +175,26 @@ void mtd_erase_callback(struct erase_info *instr)
 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
        struct mtd_part *part = PART(mtd);
-       if ((len + ofs) > mtd->size)
-               return -EINVAL;
-       return part->master->lock(part->master, ofs + part->offset, len);
+       return mtd_lock(part->master, ofs + part->offset, len);
 }
 
 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
        struct mtd_part *part = PART(mtd);
-       if ((len + ofs) > mtd->size)
-               return -EINVAL;
-       return part->master->unlock(part->master, ofs + part->offset, len);
+       return mtd_unlock(part->master, ofs + part->offset, len);
 }
 
 static void part_sync(struct mtd_info *mtd)
 {
        struct mtd_part *part = PART(mtd);
-       part->master->sync(part->master);
+       mtd_sync(part->master);
 }
 
 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
        struct mtd_part *part = PART(mtd);
-       if (ofs >= mtd->size)
-               return -EINVAL;
        ofs += part->offset;
-       return part->master->block_isbad(part->master, ofs);
+       return mtd_block_isbad(part->master, ofs);
 }
 
 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
@@ -244,12 +202,8 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
        struct mtd_part *part = PART(mtd);
        int res;
 
-       if (!(mtd->flags & MTD_WRITEABLE))
-               return -EROFS;
-       if (ofs >= mtd->size)
-               return -EINVAL;
        ofs += part->offset;
-       res = part->master->block_markbad(part->master, ofs);
+       res = mtd_block_markbad(part->master, ofs);
        if (!res)
                mtd->ecc_stats.badblocks++;
        return res;
@@ -303,39 +257,36 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
        slave->mtd.name = part->name;
        slave->mtd.owner = master->owner;
 
-       slave->mtd.read = part_read;
-       slave->mtd.write = part_write;
-
-       if (master->panic_write)
-               slave->mtd.panic_write = part_panic_write;
-
-       if (master->read_oob)
-               slave->mtd.read_oob = part_read_oob;
-       if (master->write_oob)
-               slave->mtd.write_oob = part_write_oob;
-       if (master->read_user_prot_reg)
-               slave->mtd.read_user_prot_reg = part_read_user_prot_reg;
-       if (master->read_fact_prot_reg)
-               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 (master->lock)
-               slave->mtd.lock = part_lock;
-       if (master->unlock)
-               slave->mtd.unlock = part_unlock;
-       if (master->block_isbad)
-               slave->mtd.block_isbad = part_block_isbad;
-       if (master->block_markbad)
-               slave->mtd.block_markbad = part_block_markbad;
-       slave->mtd.erase = part_erase;
+       slave->mtd._read = part_read;
+       slave->mtd._write = part_write;
+
+       if (master->_read_oob)
+               slave->mtd._read_oob = part_read_oob;
+       if (master->_write_oob)
+               slave->mtd._write_oob = part_write_oob;
+       if (master->_read_user_prot_reg)
+               slave->mtd._read_user_prot_reg = part_read_user_prot_reg;
+       if (master->_read_fact_prot_reg)
+               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 (master->_lock)
+               slave->mtd._lock = part_lock;
+       if (master->_unlock)
+               slave->mtd._unlock = part_unlock;
+       if (master->_block_isbad)
+               slave->mtd._block_isbad = part_block_isbad;
+       if (master->_block_markbad)
+               slave->mtd._block_markbad = part_block_markbad;
+       slave->mtd._erase = part_erase;
        slave->master = master;
        slave->offset = part->offset;
        slave->index = partno;
@@ -347,16 +298,18 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
                if (mtd_mod_by_eb(cur_offset, master) != 0) {
                        /* Round up to next erasesize */
                        slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize;
-                       printk(KERN_NOTICE "Moving partition %d: "
-                              "0x%012llx -> 0x%012llx\n", partno,
-                              (unsigned long long)cur_offset, (unsigned long long)slave->offset);
+                       debug("Moving partition %d: 0x%012llx -> 0x%012llx\n",
+                             partno, (unsigned long long)cur_offset,
+                             (unsigned long long)slave->offset);
                }
        }
        if (slave->mtd.size == MTDPART_SIZ_FULL)
                slave->mtd.size = master->size - slave->offset;
 
-       printk(KERN_NOTICE "0x%012llx-0x%012llx : \"%s\"\n", (unsigned long long)slave->offset,
-               (unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);
+       debug("0x%012llx-0x%012llx : \"%s\"\n",
+             (unsigned long long)slave->offset,
+             (unsigned long long)(slave->offset + slave->mtd.size),
+             slave->mtd.name);
 
        /* let's do some sanity checks */
        if (slave->offset >= master->size) {
@@ -414,12 +367,11 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
        }
 
        slave->mtd.ecclayout = master->ecclayout;
-       if (master->block_isbad) {
+       if (master->_block_isbad) {
                uint64_t offs = 0;
 
                while (offs < slave->mtd.size) {
-                       if (master->block_isbad(master,
-                                               offs + slave->offset))
+                       if (mtd_block_isbad(master, offs + slave->offset))
                                slave->mtd.ecc_stats.badblocks++;
                        offs += slave->mtd.erasesize;
                }
@@ -463,7 +415,7 @@ int add_mtd_partitions(struct mtd_info *master,
        if (mtd_partitions.next == NULL)
                INIT_LIST_HEAD(&mtd_partitions);
 
-       printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
+       debug("Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
 
        for (i = 0; i < nbparts; i++) {
                slave = add_one_partition(master, parts + i, i, cur_offset);