diff options
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index c4719e6..0510bf0 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -341,6 +341,9 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) err = esdhc_setup_data(mmc, data); if(err) return err; + + if (data->flags & MMC_DATA_READ) + check_and_invalidate_dcache_range(cmd, data); } /* Figure out the transfer arguments */ @@ -437,6 +440,11 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) } } while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE); + /* + * Need invalidate the dcache here again to avoid any + * cache-fill during the DMA operations such as the + * speculative pre-fetching etc. + */ if (data->flags & MMC_DATA_READ) check_and_invalidate_dcache_range(cmd, data); #endif |