diff options
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/common.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 | ||||
| -rw-r--r-- | include/linux/stmmac.h | 1 |
6 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 7164509e383..bcd54d6e94f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -247,8 +247,8 @@ struct stmmac_desc_ops { struct stmmac_dma_ops { /* DMA core initialization */ - int (*init) (void __iomem *ioaddr, int pbl, int fb, int burst_len, - u32 dma_tx, u32 dma_rx); + int (*init) (void __iomem *ioaddr, int pbl, int fb, int mb, + int burst_len, u32 dma_tx, u32 dma_rx); /* Dump DMA registers */ void (*dump_regs) (void __iomem *ioaddr); /* Set tx/rx threshold in the csr6 register diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h index 1527f4ecd11..23478bf4ed7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h @@ -141,6 +141,7 @@ enum rx_tx_priority_ratio { }; #define DMA_BUS_MODE_FB 0x00010000 /* Fixed burst */ +#define DMA_BUS_MODE_MB 0x04000000 /* Mixed burst */ #define DMA_BUS_MODE_RPBL_MASK 0x003e0000 /* Rx-Programmable Burst Len */ #define DMA_BUS_MODE_RPBL_SHIFT 17 #define DMA_BUS_MODE_USP 0x00800000 diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c index 3675c573156..033500090f5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c @@ -31,7 +31,7 @@ #include "dwmac_dma.h" static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, - int burst_len, u32 dma_tx, u32 dma_rx) + int mb, int burst_len, u32 dma_tx, u32 dma_rx) { u32 value = readl(ioaddr + DMA_BUS_MODE); int limit; @@ -66,6 +66,10 @@ static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, if (fb) value |= DMA_BUS_MODE_FB; + /* Mixed Burst has no effect when fb is set */ + if (mb) + value |= DMA_BUS_MODE_MB; + #ifdef CONFIG_STMMAC_DA value |= DMA_BUS_MODE_DA; /* Rx has priority over tx */ #endif diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c index 92ed2e07609..c2b4d55a79b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c @@ -33,7 +33,7 @@ #include "dwmac_dma.h" static int dwmac100_dma_init(void __iomem *ioaddr, int pbl, int fb, - int burst_len, u32 dma_tx, u32 dma_rx) + int mb, int burst_len, u32 dma_tx, u32 dma_rx) { u32 value = readl(ioaddr + DMA_BUS_MODE); int limit; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index a9699ae49ad..d1d08401887 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -925,6 +925,7 @@ static void stmmac_check_ether_addr(struct stmmac_priv *priv) static int stmmac_init_dma_engine(struct stmmac_priv *priv) { int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, burst_len = 0; + int mixed_burst = 0; /* Some DMA parameters can be passed from the platform; * in case of these are not passed we keep a default @@ -932,10 +933,11 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) if (priv->plat->dma_cfg) { pbl = priv->plat->dma_cfg->pbl; fixed_burst = priv->plat->dma_cfg->fixed_burst; + mixed_burst = priv->plat->dma_cfg->mixed_burst; burst_len = priv->plat->dma_cfg->burst_len; } - return priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, + return priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst, burst_len, priv->dma_tx_phy, priv->dma_rx_phy); } diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index f85c93d6e6d..b69bdb1e08b 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -86,6 +86,7 @@ struct stmmac_mdio_bus_data { struct stmmac_dma_cfg { int pbl; int fixed_burst; + int mixed_burst; int burst_len; }; |