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path: root/drivers/mmc/fsl_esdhc.c
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Diffstat (limited to 'drivers/mmc/fsl_esdhc.c')
-rw-r--r--drivers/mmc/fsl_esdhc.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index db4d251..9daceab 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc
+ * Copyright 2007, 2010-2015 Freescale Semiconductor, Inc.
* Andy Fleming
*
* Based vaguely on the pxa mmc code:
@@ -309,6 +309,9 @@ 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 */
@@ -405,6 +408,11 @@ 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