net: stmmac: Uniformize the use of dma_init_* callbacks

[thirdparty/kernel/stable.git] / drivers / net / ethernet / stmicro / stmmac / dwmac100_dma.c

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
index 80339d3d71c7034c01c9d34726928d9021b6de5b..21dee25ee570be90415f016050464d695e2fe0d6 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
@@ -29,8 +29,7 @@
 #include "dwmac_dma.h"
 
 static void dwmac100_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)
 {
        /* Enable Application Access by writing to DMA CSR0 */
        writel(DMA_BUS_MODE_DEFAULT | (dma_cfg->pbl << DMA_BUS_MODE_PBL_SHIFT),
@@ -38,12 +37,22 @@ static void dwmac100_dma_init(void __iomem *ioaddr,
 
        /* Mask interrupts by writing to CSR7 */
        writel(DMA_INTR_DEFAULT_MASK, ioaddr + DMA_INTR_ENA);
+}
 
-       /* RX/TX descriptor base addr lists must be written into
-        * DMA CSR3 and CSR4, respectively
-        */
-       writel(dma_tx, ioaddr + DMA_TX_BASE_ADDR);
-       writel(dma_rx, ioaddr + DMA_RCV_BASE_ADDR);
+static void dwmac100_dma_init_rx(void __iomem *ioaddr,
+                                struct stmmac_dma_cfg *dma_cfg,
+                                u32 dma_rx_phy, u32 chan)
+{
+       /* RX descriptor base addr lists must be written into DMA CSR3 */
+       writel(dma_rx_phy, ioaddr + DMA_RCV_BASE_ADDR);
+}
+
+static void dwmac100_dma_init_tx(void __iomem *ioaddr,
+                                struct stmmac_dma_cfg *dma_cfg,
+                                u32 dma_tx_phy, u32 chan)
+{
+       /* TX descriptor base addr lists must be written into DMA CSR4 */
+       writel(dma_tx_phy, ioaddr + DMA_TX_BASE_ADDR);
 }
 
 /* Store and Forward capability is not used at all.
@@ -112,6 +121,8 @@ static void dwmac100_dma_diagnostic_fr(void *data, struct stmmac_extra_stats *x,
 const struct stmmac_dma_ops dwmac100_dma_ops = {
        .reset = dwmac_dma_reset,
        .init = dwmac100_dma_init,
+       .init_rx_chan = dwmac100_dma_init_rx,
+       .init_tx_chan = dwmac100_dma_init_tx,
        .dump_regs = dwmac100_dump_dma_regs,
        .dma_tx_mode = dwmac100_dma_operation_mode_tx,
        .dma_diagnostic_fr = dwmac100_dma_diagnostic_fr,