diff options
Diffstat (limited to 'common/spl/spl_mmc.c')
| -rw-r--r-- | common/spl/spl_mmc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c index 4dff9bfd6e..212a2b0992 100644 --- a/common/spl/spl_mmc.c +++ b/common/spl/spl_mmc.c @@ -20,26 +20,40 @@ static int mmc_load_legacy(struct spl_image_info *spl_image, struct mmc *mmc, ulong sector, struct image_header *header) { + u32 image_offset_sectors; u32 image_size_sectors; unsigned long count; + u32 image_offset; int ret; ret = spl_parse_image_header(spl_image, header); if (ret) return ret; + /* convert offset to sectors - round down */ + image_offset_sectors = spl_image->offset / mmc->read_bl_len; + /* calculate remaining offset */ + image_offset = spl_image->offset % mmc->read_bl_len; + /* convert size to sectors - round up */ image_size_sectors = (spl_image->size + mmc->read_bl_len - 1) / mmc->read_bl_len; /* Read the header too to avoid extra memcpy */ - count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors, + count = blk_dread(mmc_get_blk_desc(mmc), + sector + image_offset_sectors, + image_size_sectors, (void *)(ulong)spl_image->load_addr); debug("read %x sectors to %lx\n", image_size_sectors, spl_image->load_addr); if (count != image_size_sectors) return -EIO; + if (image_offset) + memmove((void *)(ulong)spl_image->load_addr, + (void *)(ulong)spl_image->load_addr + image_offset, + spl_image->size); + return 0; } |