It needs to flush D-cache before 'mmc read' so that
we can see the right data in DDR. And fix parameter
for invalidate_dcache_range() after 'mmc read'.
Signed-off-by: Yangbo Lu <yangbo...@freescale.com>
Cc: York Sun <york...@freescale.com>
---
drivers/mmc/fsl_esdhc.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index c4719e6..3ca25bd 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -192,6 +192,17 @@ static int esdhc_setup_data(struct mmc *mmc, struct
mmc_data *data)
wml_value = data->blocksize/4;
if (data->flags & MMC_DATA_READ) {
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#ifdef CONFIG_LS2085A
+ /*
+ * It's temporary for ls2085a so that
+ * we can see right data in DDR
+ */
+ flush_dcache_range((ulong)data->dest,
+ (ulong)data->dest+data->blocks
+ *data->blocksize);
+#endif
+#endif
if (wml_value > WML_RD_WML_MAX)
wml_value = WML_RD_WML_MAX_VAL;
@@ -278,14 +289,9 @@ static int esdhc_setup_data(struct mmc *mmc, struct
mmc_data *data)
static void check_and_invalidate_dcache_range
(struct mmc_cmd *cmd,
struct mmc_data *data) {
-#ifdef CONFIG_LS2085A
- unsigned start = 0;
-#else
- unsigned start = (unsigned)data->dest ;
-#endif
+ unsigned start, end;
unsigned size = roundup(ARCH_DMA_MINALIGN,
data->blocks*data->blocksize);
- unsigned end = start+size ;
#ifdef CONFIG_LS2085A
dma_addr_t addr;
@@ -294,7 +300,10 @@ static void check_and_invalidate_dcache_range
printf("Error found for upper 32 bits\n");
else
start = lower_32_bits(addr);
+#else
+ start = (unsigned)data->dest;
#endif
+ end = start + size;
invalidate_dcache_range(start, end);
}
#endif
--
2.1.0.27.g96db324
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