net: stmmac: Uniformize the use of dma_init_* callbacks

Instead of relying on the GMAC version for choosing if we need to use
dma_init or dma_init_{rx/tx}_chan callback, lets uniformize this and
always use the dma_init_{rx/tx}_chan callbacks.

While at it, fix the use of dma_init_chan callback, which shall be
called for as many channels as the max of rx/tx channels.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 6 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 11c287a7ed52..2e6e2a96b4f2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -276,17 +276,28 @@ static int sun8i_dwmac_dma_reset(void __iomem *ioaddr)
  * Called from stmmac via stmmac_dma_ops->init
  */
 static void sun8i_dwmac_dma_init(void __iomem *ioaddr,
-				 struct stmmac_dma_cfg *dma_cfg,
-				 u32 dma_tx, u32 dma_rx, int atds)
+				 struct stmmac_dma_cfg *dma_cfg, int atds)
 {
-	/* Write TX and RX descriptors address */
-	writel(dma_rx, ioaddr + EMAC_RX_DESC_LIST);
-	writel(dma_tx, ioaddr + EMAC_TX_DESC_LIST);
-
 	writel(EMAC_RX_INT | EMAC_TX_INT, ioaddr + EMAC_INT_EN);
 	writel(0x1FFFFFF, ioaddr + EMAC_INT_STA);
 }
 
+static void sun8i_dwmac_dma_init_rx(void __iomem *ioaddr,
+				    struct stmmac_dma_cfg *dma_cfg,
+				    u32 dma_rx_phy, u32 chan)
+{
+	/* Write RX descriptors address */
+	writel(dma_rx_phy, ioaddr + EMAC_RX_DESC_LIST);
+}
+
+static void sun8i_dwmac_dma_init_tx(void __iomem *ioaddr,
+				    struct stmmac_dma_cfg *dma_cfg,
+				    u32 dma_tx_phy, u32 chan)
+{
+	/* Write TX descriptors address */
+	writel(dma_tx_phy, ioaddr + EMAC_TX_DESC_LIST);
+}
+
 /* sun8i_dwmac_dump_regs() - Dump EMAC address space
  * Called from stmmac_dma_ops->dump_regs
  * Used for ethtool
@@ -492,6 +503,8 @@ static void sun8i_dwmac_dma_operation_mode_tx(void __iomem *ioaddr, int mode,
 static const struct stmmac_dma_ops sun8i_dwmac_dma_ops = {
 	.reset = sun8i_dwmac_dma_reset,
 	.init = sun8i_dwmac_dma_init,
+	.init_rx_chan = sun8i_dwmac_dma_init_rx,
+	.init_tx_chan = sun8i_dwmac_dma_init_tx,
 	.dump_regs = sun8i_dwmac_dump_regs,
 	.dma_rx_mode = sun8i_dwmac_dma_operation_mode_rx,
 	.dma_tx_mode = sun8i_dwmac_dma_operation_mode_tx,