diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/spi/core.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index 8aa3753aaaa1..43df7d558b74 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -878,6 +878,12 @@ static int spinand_mtd_continuous_page_read(struct mtd_info *mtd, loff_t from, * Each data read must be a multiple of 4-bytes and full pages should be read; * otherwise, the data output might get out of sequence from one read command * to another. + * + * Continuous reads never cross LUN boundaries. Some devices don't + * support crossing planes boundaries. Some devices don't even support + * crossing blocks boundaries. The common case being to read through UBI, + * we will very rarely read two consequent blocks or more, so let's only enable + * continuous reads when reading within the same erase block. */ nanddev_io_for_each_block(nand, NAND_PAGE_READ, from, ops, &iter) { ret = spinand_select_target(spinand, iter.req.pos.target); @@ -968,19 +974,6 @@ static bool spinand_use_cont_read(struct mtd_info *mtd, loff_t from, nanddev_offs_to_pos(nand, from, &start_pos); nanddev_offs_to_pos(nand, from + ops->len - 1, &end_pos); - /* - * Continuous reads never cross LUN boundaries. Some devices don't - * support crossing planes boundaries. Some devices don't even support - * crossing blocks boundaries. The common case being to read through UBI, - * we will very rarely read two consequent blocks or more, so it is safer - * and easier (can be improved) to only enable continuous reads when - * reading within the same erase block. - */ - if (start_pos.target != end_pos.target || - start_pos.plane != end_pos.plane || - start_pos.eraseblock != end_pos.eraseblock) - return false; - return start_pos.page < end_pos.page; } |