diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c index f35385266fbf..612d3aaac9a4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c @@ -84,37 +84,39 @@ static void dwmac1000_dma_axi(void __iomem *ioaddr, struct stmmac_axi *axi) writel(value, ioaddr + DMA_AXI_BUS_MODE); } -static void dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb, - int aal, u32 dma_tx, u32 dma_rx, int atds) +static void dwmac1000_dma_init(void __iomem *ioaddr, + struct stmmac_dma_cfg *dma_cfg, + u32 dma_tx, u32 dma_rx, int atds) { u32 value = readl(ioaddr + DMA_BUS_MODE); + int txpbl = dma_cfg->txpbl ?: dma_cfg->pbl; + int rxpbl = dma_cfg->rxpbl ?: dma_cfg->pbl; /* * Set the DMA PBL (Programmable Burst Length) mode. * * Note: before stmmac core 3.50 this mode bit was 4xPBL, and * post 3.5 mode bit acts as 8*PBL. - * - * This configuration doesn't take care about the Separate PBL - * so only the bits: 13-8 are programmed with the PBL passed from the - * platform. */ - value |= DMA_BUS_MODE_MAXPBL; - value &= ~DMA_BUS_MODE_PBL_MASK; - value |= (pbl << DMA_BUS_MODE_PBL_SHIFT); + if (dma_cfg->pblx8) + value |= DMA_BUS_MODE_MAXPBL; + value |= DMA_BUS_MODE_USP; + value &= ~(DMA_BUS_MODE_PBL_MASK | DMA_BUS_MODE_RPBL_MASK); + value |= (txpbl << DMA_BUS_MODE_PBL_SHIFT); + value |= (rxpbl << DMA_BUS_MODE_RPBL_SHIFT); /* Set the Fixed burst mode */ - if (fb) + if (dma_cfg->fixed_burst) value |= DMA_BUS_MODE_FB; /* Mixed Burst has no effect when fb is set */ - if (mb) + if (dma_cfg->mixed_burst) value |= DMA_BUS_MODE_MB; if (atds) value |= DMA_BUS_MODE_ATDS; - if (aal) + if (dma_cfg->aal) value |= DMA_BUS_MODE_AAL; writel(value, ioaddr + DMA_BUS_MODE); |