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-rw-r--r--drivers/dfu/dfu_sf.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
index 448d95d382..7646c6b727 100644
--- a/drivers/dfu/dfu_sf.c
+++ b/drivers/dfu/dfu_sf.c
@@ -23,17 +23,25 @@ static int dfu_read_medium_sf(struct dfu_entity *dfu, u64 offset, void *buf,
return spi_flash_read(dfu->data.sf.dev, offset, *len, buf);
}
+static u64 find_sector(struct dfu_entity *dfu, u64 start, u64 offset)
+{
+ return (lldiv((start + offset), dfu->data.sf.dev->sector_size)) *
+ dfu->data.sf.dev->sector_size;
+}
+
static int dfu_write_medium_sf(struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
int ret;
- ret = spi_flash_erase(dfu->data.sf.dev, offset,
+ ret = spi_flash_erase(dfu->data.sf.dev,
+ find_sector(dfu, dfu->data.sf.start, offset),
dfu->data.sf.dev->sector_size);
if (ret)
return ret;
- ret = spi_flash_write(dfu->data.sf.dev, offset, *len, buf);
+ ret = spi_flash_write(dfu->data.sf.dev, dfu->data.sf.start + offset,
+ *len, buf);
if (ret)
return ret;
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