[PATCH net-next v2 01/10] net: stmmac: dwxgmac: Enable EDMA by default

[Jose Abreu]

Enable the EDMA feature by default which gives higher performance.

Changes from v1:
        - Do not use magic values (David)

Signed-off-by: Jose Abreu <joab...@synopsys.com>
Cc: Joao Pinto <jpi...@synopsys.com>
Cc: David S. Miller <da...@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavall...@st.com>
Cc: Alexandre Torgue <alexandre.tor...@st.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h     | 4 ++++
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h 
b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index b8296eb41011..c9e802faabb5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -177,6 +177,10 @@
 #define XGMAC_BLEN8                    BIT(2)
 #define XGMAC_BLEN4                    BIT(1)
 #define XGMAC_UNDEF                    BIT(0)
+#define XGMAC_TX_EDMA_CTRL             0x00003040
+#define XGMAC_TDPS                     GENMASK(29, 0)
+#define XGMAC_RX_EDMA_CTRL             0x00003044
+#define XGMAC_RDPS                     GENMASK(29, 0)
 #define XGMAC_DMA_CH_CONTROL(x)                (0x00003100 + (0x80 * (x)))
 #define XGMAC_PBLx8                    BIT(16)
 #define XGMAC_DMA_CH_TX_CONTROL(x)     (0x00003104 + (0x80 * (x)))
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c 
b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 7861a938420a..42448973c36e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -122,6 +122,8 @@ static void dwxgmac2_dma_axi(void __iomem *ioaddr, struct 
stmmac_axi *axi)
        }
 
        writel(value, ioaddr + XGMAC_DMA_SYSBUS_MODE);
+       writel(XGMAC_TDPS, ioaddr + XGMAC_TX_EDMA_CTRL);
+       writel(XGMAC_RDPS, ioaddr + XGMAC_RX_EDMA_CTRL);
 }
 
 static void dwxgmac2_dma_rx_mode(void __iomem *ioaddr, int mode,
-- 
2.7.4