int designware_eth_init(struct dw_eth_dev *priv, u8 *enetaddr) { struct eth_mac_regs *mac_p = priv->mac_regs_p; struct eth_dma_regs *dma_p = priv->dma_regs_p; unsigned int start; int ret; writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode); start = get_timer(0); while (readl(&dma_p->busmode) & DMAMAC_SRST) { if (get_timer(start) >= CONFIG_MACRESET_TIMEOUT) { printf("DMA reset timeout\n"); return -ETIMEDOUT; } mdelay(100); }; /* * Soft reset above clears HW address registers. * So we have to set it here once again. */ _dw_write_hwaddr(priv, enetaddr); rx_descs_init(priv); tx_descs_init(priv); writel(FIXEDBURST | PRIORXTX_41 | DMA_PBL, &dma_p->busmode); #ifndef CONFIG_DW_MAC_FORCE_THRESHOLD_MODE writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD, &dma_p->opmode); #else writel(readl(&dma_p->opmode) | FLUSHTXFIFO, &dma_p->opmode); #endif writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode); #ifdef CONFIG_DW_AXI_BURST_LEN writel((CONFIG_DW_AXI_BURST_LEN & 0x1FF >> 1), &dma_p->axibus); #endif /* Start up the PHY */ ret = phy_startup(priv->phydev); if (ret) { printf("Could not initialize PHY %s\n", priv->phydev->dev->name); return ret; } ret = dw_adjust_link(priv, mac_p, priv->phydev); if (ret) return ret; return 0; }
static int dw_eth_init(struct eth_device *dev, bd_t *bis) { struct dw_eth_dev *priv = dev->priv; struct eth_mac_regs *mac_p = priv->mac_regs_p; struct eth_dma_regs *dma_p = priv->dma_regs_p; unsigned int start; writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode); start = get_timer(0); while (readl(&dma_p->busmode) & DMAMAC_SRST) { if (get_timer(start) >= CONFIG_MACRESET_TIMEOUT) return -1; mdelay(100); }; /* Soft reset above clears HW address registers. * So we have to set it here once again */ dw_write_hwaddr(dev); rx_descs_init(dev); tx_descs_init(dev); writel(FIXEDBURST | PRIORXTX_41 | DMA_PBL, &dma_p->busmode); writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD, &dma_p->opmode); writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode); /* Start up the PHY */ if (phy_startup(priv->phydev)) { printf("Could not initialize PHY %s\n", priv->phydev->dev->name); return -1; } dw_adjust_link(mac_p, priv->phydev); if (!priv->phydev->link) return -1; writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf); return 0; }
static void descs_init(struct eth_device *dev) { tx_descs_init(dev); rx_descs_init(dev); }