Messages in this thread Patch in this message | | | From | Bean Huo <> | Subject | [PATCH v2 03/17] drivers:mtd:add dual plane page program support in partition layer | Date | Tue, 2 Feb 2016 02:30:38 +0000 |
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From: Bean Huo <beanhuo@micron.com>
This file patch is to add multi-plane page program function in MTD partition layer and call back MTD master dual plane page program function.
Signed-off-by: BeanHuo <beanhuo@micron.com> --- drivers/mtd/mtdpart.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index cafdb88..85f68d0 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -203,6 +203,23 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to, return part->master->_write_oob(part->master, to + part->offset, ops); } +static int part_write_dual_plane_oob(struct mtd_info *mtd, loff_t to_plane0, + struct mtd_oob_ops *ops_plane0, loff_t to_plane1, + struct mtd_oob_ops *ops_plane1) +{ + struct mtd_part *part = PART(mtd); + + if ((to_plane0 >= mtd->size) || ((to_plane1 >= mtd->size))) + return -EINVAL; + if ((ops_plane0->datbuf && to_plane0 + ops_plane0->len > mtd->size) || + (ops_plane1->datbuf && to_plane1 + ops_plane0->len > mtd->size)) + return -EINVAL; + + return part->master->_dual_plane_write_oob(part->master, + to_plane0 + part->offset, ops_plane0, + to_plane1 + part->offset, ops_plane1); +} + static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { @@ -409,6 +426,8 @@ static struct mtd_part *allocate_partition(struct mtd_info *master, slave->mtd._read_oob = part_read_oob; if (master->_write_oob) slave->mtd._write_oob = part_write_oob; + if (master->_dual_plane_write_oob) + slave->mtd._dual_plane_write_oob = part_write_dual_plane_oob; if (master->_read_user_prot_reg) slave->mtd._read_user_prot_reg = part_read_user_prot_reg; if (master->_read_fact_prot_reg) -- 1.9.1
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