Dual stacked accessing can be done by updating flash part attributes like sector_size*2
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- drivers/mtd/spi/spansion.c | 3 +++ drivers/mtd/spi/stmicro.c | 3 +++ 2 files changed, 6 insertions(+)
diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c index a4ea16b..49ee842 100644 --- a/drivers/mtd/spi/spansion.c +++ b/drivers/mtd/spi/spansion.c @@ -140,6 +140,9 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode) flash->sector_size *= 2; }
+ if (flash->spi->is_dual == SPI_FLASH_CONN_DUALSTACKED) + flash->sector_size *= 2; + flash->size = flash->sector_size * params->nr_sectors;
return flash; diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c index e9b4bc6..a701571 100644 --- a/drivers/mtd/spi/stmicro.c +++ b/drivers/mtd/spi/stmicro.c @@ -198,6 +198,9 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode) flash->sector_size *= 2; }
+ if (flash->spi->is_dual == SPI_FLASH_CONN_DUALSTACKED) + flash->sector_size *= 2; + flash->size = flash->sector_size * params->nr_sectors;
/* for >= 512MiB flashes, use flag status instead of read_status */