diff options
| author | Lee Jones <lee.jones@linaro.org> | 2014-03-20 09:20:43 (GMT) |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-03-20 11:17:16 (GMT) |
| commit | 3b5d1981933b25973b02684dccb17d4282fd4d6d (patch) | |
| tree | bf05d43445067666b3647f7ee04efc0430425c41 | |
| parent | 089812740d42104d7b9eef803a34a3940d03bcd4 (diff) | |
| download | linux-3b5d1981933b25973b02684dccb17d4282fd4d6d.tar.xz | |
mtd: st_spi_fsm: Use device size to determine address width
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 <angus.clark@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
| -rw-r--r-- | drivers/mtd/devices/st_spi_fsm.c | 4 |
1 files changed, 4 insertions, 0 deletions
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; |