Messages in this thread Patch in this message | | | From | Lee Jones <> | Subject | [PATCH 11/35] mtd: st_spi_fsm: Use device size to determine address width | Date | Tue, 18 Feb 2014 14:55:38 +0000 |
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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> --- 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 68fa12e..1d7a13a0 100644 --- a/drivers/mtd/devices/st_spi_fsm.c +++ b/drivers/mtd/devices/st_spi_fsm.c @@ -670,6 +670,10 @@ 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 > 0xFFFFFF) + info->flags |= FLASH_FLAG_32BIT_ADDR; + platform_set_drvdata(pdev, fsm); fsm->mtd.dev.parent = &pdev->dev; -- 1.8.3.2
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