diff options
Diffstat (limited to 'drivers/mmc/mmc_write.c')
-rw-r--r-- | drivers/mmc/mmc_write.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c index c023d15e52a..90fcf2679bb 100644 --- a/drivers/mmc/mmc_write.c +++ b/drivers/mmc/mmc_write.c @@ -80,6 +80,8 @@ ulong mmc_berase(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt) struct mmc *mmc = find_mmc_device(dev_num); lbaint_t blk = 0, blk_r = 0; int timeout_ms = 1000; + u32 grpcnt; + if (!mmc) return -1; @@ -123,6 +125,15 @@ ulong mmc_berase(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt) } else { blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ? mmc->erase_grp_size : (blkcnt - blk); + + grpcnt = (blkcnt - blk) / mmc->erase_grp_size; + /* Max 2GB per spec */ + if ((blkcnt - blk) > 0x400000) + blk_r = 0x400000; + else if (grpcnt) + blk_r = grpcnt * mmc->erase_grp_size; + else + blk_r = blkcnt - blk; } err = mmc_erase_t(mmc, start + blk, blk_r, erase_args); if (err) |