diff options
Diffstat (limited to 'drivers/dfu/dfu_mmc.c')
| -rw-r--r-- | drivers/dfu/dfu_mmc.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c index 403fd5351d..5b551f6ae1 100644 --- a/drivers/dfu/dfu_mmc.c +++ b/drivers/dfu/dfu_mmc.c @@ -352,6 +352,7 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s) struct blk_desc *blk_dev = mmc_get_blk_desc(mmc); int mmcdev = second_arg; int mmcpart = third_arg; + int offset = 0; if (part_get_info(blk_dev, mmcpart, &partinfo) != 0) { pr_err("Couldn't find part #%d on mmc device #%d\n", @@ -359,9 +360,17 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s) return -ENODEV; } + /* + * 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; |