diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ipq806x/patches-4.4/711-stmmac-fix-ipq806x-DMA-configuration.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.4/711-stmmac-fix-ipq806x-DMA-configuration.patch b/target/linux/ipq806x/patches-4.4/711-stmmac-fix-ipq806x-DMA-configuration.patch new file mode 100644 index 0000000000..c99f60768f --- /dev/null +++ b/target/linux/ipq806x/patches-4.4/711-stmmac-fix-ipq806x-DMA-configuration.patch @@ -0,0 +1,117 @@ +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +@@ -259,6 +259,7 @@ static int ipq806x_gmac_probe(struct pla + { + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; ++ struct stmmac_dma_cfg *dma_cfg; + struct device *dev = &pdev->dev; + struct ipq806x_gmac *gmac; + int val; +@@ -348,6 +349,17 @@ static int ipq806x_gmac_probe(struct pla + plat_dat->bsp_priv = gmac; + plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed; + ++ dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg), ++ GFP_KERNEL); ++ ++ dma_cfg->pbl = 32; ++ dma_cfg->aal = 1; ++ dma_cfg->burst_len = DMA_AXI_BLEN_16 | ++ (7 << DMA_AXI_RD_OSR_LMT_SHIFT) | ++ (7 << DMA_AXI_WR_OSR_LMT_SHIFT); ++ ++ plat_dat->dma_cfg = dma_cfg; ++ + return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + } + +--- a/include/linux/stmmac.h ++++ b/include/linux/stmmac.h +@@ -73,6 +73,9 @@ + | DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \ + | DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256) + ++#define DMA_AXI_RD_OSR_LMT_SHIFT 16 ++#define DMA_AXI_WR_OSR_LMT_SHIFT 20 ++ + /* Platfrom data for platform device structure's platform_data field */ + + struct stmmac_mdio_bus_data { +@@ -88,6 +91,7 @@ struct stmmac_mdio_bus_data { + + struct stmmac_dma_cfg { + int pbl; ++ int aal; + int fixed_burst; + int mixed_burst; + int burst_len; +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c +@@ -31,7 +31,8 @@ + #include "dwmac_dma.h" + + static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb, +- int burst_len, u32 dma_tx, u32 dma_rx, int atds) ++ int burst_len, u32 dma_tx, u32 dma_rx, int atds, ++ int aal) + { + u32 value = readl(ioaddr + DMA_BUS_MODE); + int limit; +@@ -62,6 +63,10 @@ static int dwmac1000_dma_init(void __iom + value = DMA_BUS_MODE_PBL | ((pbl << DMA_BUS_MODE_PBL_SHIFT) | + (pbl << DMA_BUS_MODE_RPBL_SHIFT)); + ++ /* Address Aligned Beats */ ++ if (aal) ++ value |= DMA_BUS_MODE_AAL; ++ + /* Set the Fixed burst mode */ + if (fb) + value |= DMA_BUS_MODE_FB; +--- a/drivers/net/ethernet/stmicro/stmmac/common.h ++++ b/drivers/net/ethernet/stmicro/stmmac/common.h +@@ -352,7 +352,7 @@ extern const struct stmmac_desc_ops ndes + struct stmmac_dma_ops { + /* DMA core initialization */ + int (*init) (void __iomem *ioaddr, int pbl, int fb, int mb, +- int burst_len, u32 dma_tx, u32 dma_rx, int atds); ++ int burst_len, u32 dma_tx, u32 dma_rx, int atds, int aal); + /* Dump DMA registers */ + void (*dump_regs) (void __iomem *ioaddr); + /* Set tx/rx threshold in the csr6 register +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c +@@ -33,7 +33,8 @@ + #include "dwmac_dma.h" + + static int dwmac100_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb, +- int burst_len, u32 dma_tx, u32 dma_rx, int atds) ++ int burst_len, u32 dma_tx, u32 dma_rx, int atds, ++ int aal) + { + u32 value = readl(ioaddr + DMA_BUS_MODE); + int limit; +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +@@ -1639,9 +1639,11 @@ static int stmmac_init_dma_engine(struct + int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, burst_len = 0; + int mixed_burst = 0; + int atds = 0; ++ int aal = 0; + + if (priv->plat->dma_cfg) { + pbl = priv->plat->dma_cfg->pbl; ++ aal = priv->plat->dma_cfg->aal; + fixed_burst = priv->plat->dma_cfg->fixed_burst; + mixed_burst = priv->plat->dma_cfg->mixed_burst; + burst_len = priv->plat->dma_cfg->burst_len; +@@ -1652,7 +1654,7 @@ static int stmmac_init_dma_engine(struct + + return priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst, + burst_len, priv->dma_tx_phy, +- priv->dma_rx_phy, atds); ++ priv->dma_rx_phy, atds, aal); + } + + /** |