Take some known parameters, namely size and number of sectors and use
them to determine weather a device can support 32bit addressing or not.
If it can, set the associated flash capability flag for latter use.

Acked-by Angus Clark <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
---
 drivers/mtd/devices/st_spi_fsm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 2740ae1..5a1b470 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -671,6 +671,10 @@ static int stfsm_probe(struct platform_device *pdev)
                return -ENODEV;
        fsm->info = info;
 
+       /* Use device size to determine address width */
+       if (info->sector_size * info->n_sectors > 0x1000000)
+               info->flags |= FLASH_FLAG_32BIT_ADDR;
+
        fsm->mtd.dev.parent     = &pdev->dev;
        fsm->mtd.type           = MTD_NORFLASH;
        fsm->mtd.writesize      = 4;
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to