diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-06-10 13:55:20 +0200 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-06-10 13:55:23 +0200 |
commit | 70579ca94f0aa76cc0ec2f56a8ec5df8739d0d38 (patch) | |
tree | c6ec572d5d208b5629d209673457057f6b776728 /drivers/mtd/partition.c | |
parent | 02fed023e12bcb2ad273dba54cd1a6c163aada1d (diff) | |
download | barebox-70579ca94f0aa76cc0ec2f56a8ec5df8739d0d38.tar.gz barebox-70579ca94f0aa76cc0ec2f56a8ec5df8739d0d38.tar.xz |
mtd: partition: implement lock/unlock
CFI Nor flashes need lock/unlock which is not implemented for partitions.
Fix this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mtd/partition.c')
-rw-r--r-- | drivers/mtd/partition.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/mtd/partition.c b/drivers/mtd/partition.c index 52d0c94a7a..5c0d46fdad 100644 --- a/drivers/mtd/partition.c +++ b/drivers/mtd/partition.c @@ -49,6 +49,32 @@ static int mtd_part_erase(struct mtd_info *mtd, struct erase_info *instr) return ret; } +static int mtd_part_lock(struct mtd_info *mtd, loff_t offset, size_t len) +{ + if (!(mtd->flags & MTD_WRITEABLE)) + return -EROFS; + + if (offset + len > mtd->size) + return -EINVAL; + + offset += mtd->master_offset; + + return mtd->master->lock(mtd->master, offset, len); +} + +static int mtd_part_unlock(struct mtd_info *mtd, loff_t offset, size_t len) +{ + if (!(mtd->flags & MTD_WRITEABLE)) + return -EROFS; + + if (offset + len > mtd->size) + return -EINVAL; + + offset += mtd->master_offset; + + return mtd->master->unlock(mtd->master, offset, len); +} + static int mtd_part_block_isbad(struct mtd_info *mtd, loff_t ofs) { if (ofs >= mtd->size) @@ -122,6 +148,8 @@ struct mtd_info *mtd_add_partition(struct mtd_info *mtd, off_t offset, if (IS_ENABLED(CONFIG_MTD_WRITE)) { part->write = mtd_part_write; part->erase = mtd_part_erase; + part->lock = mtd_part_lock; + part->unlock = mtd_part_unlock; part->block_markbad = mtd->block_markbad ? mtd_part_block_markbad : NULL; } |