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path: root/drivers/dfu/dfu_nand.c
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Diffstat (limited to 'drivers/dfu/dfu_nand.c')
-rw-r--r--drivers/dfu/dfu_nand.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c
index ab782bead4..9fb874c0bc 100644
--- a/drivers/dfu/dfu_nand.c
+++ b/drivers/dfu/dfu_nand.c
@@ -139,6 +139,7 @@ static int dfu_read_medium_nand(struct dfu_entity *dfu, u64 offset, void *buf,
static int dfu_flush_medium_nand(struct dfu_entity *dfu)
{
int ret = 0;
+ u64 off;
/* in case of ubi partition, erase rest of the partition */
if (dfu->data.nand.ubi) {
@@ -155,7 +156,16 @@ static int dfu_flush_medium_nand(struct dfu_entity *dfu)
mtd = nand_info[nand_curr_device];
memset(&opts, 0, sizeof(opts));
- opts.offset = dfu->data.nand.start + dfu->offset +
+ off = dfu->offset;
+ if ((off & (mtd->erasesize - 1)) != 0) {
+ /*
+ * last write ended with unaligned length
+ * sector is erased, jump to next
+ */
+ off = off & ~((mtd->erasesize - 1));
+ off += mtd->erasesize;
+ }
+ opts.offset = dfu->data.nand.start + off +
dfu->bad_skip;
opts.length = dfu->data.nand.start +
dfu->data.nand.size - opts.offset;
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