diff options
| -rw-r--r-- | drivers/mtd/spi/spi-nor-core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index a8865bbd37c..87a3099eeaf 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -3592,6 +3592,19 @@ static int spi_nor_select_erase(struct spi_nor *nor, mtd->erasesize = info->sector_size; } + if ((JEDEC_MFR(info) == SNOR_MFR_SST) && info->flags & SECT_4K) { + nor->erase_opcode = SPINOR_OP_BE_4K; + /* + * In parallel-memories the erase operation is + * performed on both the flashes simultaneously + * so, double the erasesize. + */ + if (nor->flags & SNOR_F_HAS_PARALLEL) + mtd->erasesize = 4096 * 2; + else + mtd->erasesize = 4096; + } + return 0; } |