All supported platforms are able to pass specific configurations via
the Device Tree on boot. Here we add a function which is to be called
during the probing process which will extract them, or make other
assumptions based on capabilities provided.
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/mtd/devices/st_spi_fsm.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index efd8fdb..1803f94 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -654,6 +654,16 @@ static int stfsm_init(struct stfsm *fsm)
return 0;
}
+static void stfsm_fetch_platform_configs(struct platform_device *pdev)
+{
+ struct stfsm *fsm = platform_get_drvdata(pdev);
+ struct flash_info *info = fsm->info;
+
+ /* Use device size to determine address width */
+ if (info->sector_size * info->n_sectors > 0xFFFFFF)
+ info->flags |= FLASH_FLAG_32BIT_ADDR;
+}
+
static int stfsm_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -712,6 +722,8 @@ static int stfsm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, fsm);
+ stfsm_fetch_platform_configs(pdev);
+
fsm->mtd.dev.parent = &pdev->dev;
fsm->mtd.type = MTD_NORFLASH;
fsm->mtd.writesize = 4;
--
1.8.3.2
--
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