TPL: TM2: dfu: Add support for in-partition offset in dfu_alt_info specifiers

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
index f405dd28d105b1e361bb80d0435f85b7e1e87ad4..2e8ae74189b25e7f5d029927ba3b42f6c9f59c74 100644 (file)
--- a/drivers/dfu/dfu_mmc.c
+++ b/drivers/dfu/dfu_mmc.c
@@ -372,6 +372,7 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
                block_dev_desc_t *blk_dev = &mmc->block_dev;
                int mmcdev = second_arg;
                int mmcpart = third_arg;
+               int offset = 0;
 
                if (dfu_get_partition_info_by_name(blk_dev, dfu->name,
                                        &partinfo) == 0)
@@ -384,9 +385,17 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
                }
 
 skip:
+               /*
+                * Check for an extra entry at dfu_alt_info env variable
+                * specifying the mmc HW defined partition number
+                */
+               if (s)
+                       if (!strcmp(strsep(&s, " "), "offset"))
+                               offset = simple_strtoul(s, NULL, 0);
+
                dfu->layout                     = DFU_RAW_ADDR;
-               dfu->data.mmc.lba_start         = partinfo.start;
-               dfu->data.mmc.lba_size          = partinfo.size;
+               dfu->data.mmc.lba_start         = partinfo.start+offset;
+               dfu->data.mmc.lba_size          = partinfo.size-offset;
                dfu->data.mmc.lba_blk_size      = partinfo.blksz;
        } else if (!strcmp(entity_type, "fat")) {
                dfu->layout = DFU_FS_FAT;