[Qemu-devel] [PATCH v2 2/3] sd: sdhci: conditionally invoke multi block transfer

[P J P <ppandit@redhat.com>]

From: Prasad J Pandit <pjp@fedoraproject.org>

In sdhci_write invoke multi block transfer if it is enabled
in the transfer mode register 's->trnmod'.

Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
---
 hw/sd/sdhci.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index cf400c8..532ef87 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -1022,7 +1022,11 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
         /* Writing to last byte of sdmasysad might trigger transfer */
         if (!(mask & 0xFF000000) && TRANSFERRING_DATA(s->prnsts) && s->blkcnt &&
                 s->blksize && SDHC_DMA_TYPE(s->hostctl) == SDHC_CTRL_SDMA) {
-            sdhci_sdma_transfer_multi_blocks(s);
+            if (!(s->trnmod & SDHC_TRNS_MULTI)) {
+                sdhci_sdma_transfer_single_block(s);
+            } else {
+                sdhci_sdma_transfer_multi_blocks(s);
+            }
         }
         break;
     case SDHC_BLKSIZE:
-- 
2.9.3