Dual parallel accessing can be done by updating flash part attributes like page_size*2, sector_size*2
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- drivers/mtd/spi/spansion.c | 6 ++++++ drivers/mtd/spi/stmicro.c | 6 ++++++ 2 files changed, 12 insertions(+)
diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c index 47a4897..a4ea16b 100644 --- a/drivers/mtd/spi/spansion.c +++ b/drivers/mtd/spi/spansion.c @@ -134,6 +134,12 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
flash->page_size = 256; flash->sector_size = 256 * params->pages_per_sector; + + if (flash->spi->is_dual == SPI_FLASH_CONN_DUALPARALLEL) { + flash->page_size *= 2; + 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 0ca00f1..e9b4bc6 100644 --- a/drivers/mtd/spi/stmicro.c +++ b/drivers/mtd/spi/stmicro.c @@ -192,6 +192,12 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
flash->page_size = 256; flash->sector_size = 256 * params->pages_per_sector; + + if (flash->spi->is_dual == SPI_FLASH_CONN_DUALPARALLEL) { + flash->page_size *= 2; + flash->sector_size *= 2; + } + flash->size = flash->sector_size * params->nr_sectors;
/* for >= 512MiB flashes, use flag status instead of read_status */