2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 4ae01b3799f4..a0ab89eb8bcc 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7704,6 +7704,8 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
                 val = tr32(TG3PCI_DMA_RW_CTRL) &
                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
+                if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
+                        val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 8a6012ab23ff..9e7fe0e7cdb8 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -183,6 +183,7 @@
 #define   METAL_REV_B2                   0x02
 #define TG3PCI_DMA_RW_CTRL              0x0000006c
 #define  DMA_RWCTRL_DIS_CACHE_ALIGNMENT  0x00000001
+#define  DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK 0x00000380
 #define  DMA_RWCTRL_READ_BNDRY_MASK      0x00000700
 #define  DMA_RWCTRL_READ_BNDRY_DISAB     0x00000000
 #define  DMA_RWCTRL_READ_BNDRY_16        0x00000100