void eth_mdio_enable(void) { davinci_eth_mdio_enable(); }
/* * This function initializes the emac hardware. It does NOT initialize * EMAC modules power or pin multiplexors, that is done by board_init() * much earlier in bootup process. Returns 1 on success, 0 otherwise. */ int davinci_emac_initialize(void) { u_int32_t phy_id; u_int16_t tmp; int i; struct eth_device *dev; dev = malloc(sizeof *dev); if (dev == NULL) return -1; memset(dev, 0, sizeof *dev); sprintf(dev->name, "DaVinci-EMAC"); dev->iobase = 0; dev->init = davinci_eth_open; dev->halt = davinci_eth_close; dev->send = davinci_eth_send_packet; dev->recv = davinci_eth_rcv_packet; dev->write_hwaddr = davinci_eth_set_mac_addr; eth_register(dev); davinci_eth_mdio_enable(); for (i = 0; i < 256; i++) { if (readl(&adap_mdio->ALIVE)) break; udelay(10); } if (i >= 256) { printf("No ETH PHY detected!!!\n"); return(0); } /* Find if a PHY is connected and get it's address */ if (!davinci_eth_phy_detect()) return(0); /* Get PHY ID and initialize phy_ops for a detected PHY */ if (!davinci_eth_phy_read(active_phy_addr, PHY_PHYIDR1, &tmp)) { active_phy_addr = 0xff; return(0); } phy_id = (tmp << 16) & 0xffff0000; if (!davinci_eth_phy_read(active_phy_addr, PHY_PHYIDR2, &tmp)) { active_phy_addr = 0xff; return(0); } phy_id |= tmp & 0x0000ffff; switch (phy_id) { case PHY_LXT972: sprintf(phy.name, "LXT972 @ 0x%02x", active_phy_addr); phy.init = lxt972_init_phy; phy.is_phy_connected = lxt972_is_phy_connected; phy.get_link_speed = lxt972_get_link_speed; phy.auto_negotiate = lxt972_auto_negotiate; break; case PHY_DP83848: sprintf(phy.name, "DP83848 @ 0x%02x", active_phy_addr); phy.init = dp83848_init_phy; phy.is_phy_connected = dp83848_is_phy_connected; phy.get_link_speed = dp83848_get_link_speed; phy.auto_negotiate = dp83848_auto_negotiate; break; case PHY_ET1011C: sprintf(phy.name, "ET1011C @ 0x%02x", active_phy_addr); phy.init = gen_init_phy; phy.is_phy_connected = gen_is_phy_connected; phy.get_link_speed = et1011c_get_link_speed; phy.auto_negotiate = gen_auto_negotiate; break; default: sprintf(phy.name, "GENERIC @ 0x%02x", active_phy_addr); phy.init = gen_init_phy; phy.is_phy_connected = gen_is_phy_connected; phy.get_link_speed = gen_get_link_speed; phy.auto_negotiate = gen_auto_negotiate; } printf("Ethernet PHY: %s\n", phy.name); miiphy_register(phy.name, davinci_mii_phy_read, davinci_mii_phy_write); return(1); }
/* * This function initializes the emac hardware. It does NOT initialize * EMAC modules power or pin multiplexors, that is done by board_init() * much earlier in bootup process. Returns 1 on success, 0 otherwise. */ int davinci_emac_initialize(void) { u_int32_t phy_id; u_int16_t tmp; int i; int ret; struct eth_device *dev; dev = malloc(sizeof *dev); if (dev == NULL) return -1; memset(dev, 0, sizeof *dev); strcpy(dev->name, "DaVinci-EMAC"); dev->iobase = 0; dev->init = davinci_eth_open; dev->halt = davinci_eth_close; dev->send = davinci_eth_send_packet; dev->recv = davinci_eth_rcv_packet; dev->write_hwaddr = davinci_eth_set_mac_addr; eth_register(dev); davinci_eth_mdio_enable(); /* let the EMAC detect the PHYs */ udelay(5000); for (i = 0; i < 256; i++) { if (readl(&adap_mdio->ALIVE)) break; udelay(1000); } if (i >= 256) { printf("No ETH PHY detected!!!\n"); return(0); } /* Find if PHY(s) is/are connected */ ret = davinci_eth_phy_detect(); if (!ret) return(0); else debug_emac(" %d ETH PHY detected\n", ret); /* Get PHY ID and initialize phy_ops for a detected PHY */ for (i = 0; i < num_phy; i++) { if (!davinci_eth_phy_read(active_phy_addr[i], MII_PHYSID1, &tmp)) { active_phy_addr[i] = 0xff; continue; } phy_id = (tmp << 16) & 0xffff0000; if (!davinci_eth_phy_read(active_phy_addr[i], MII_PHYSID2, &tmp)) { active_phy_addr[i] = 0xff; continue; } phy_id |= tmp & 0x0000ffff; switch (phy_id) { #ifdef PHY_KSZ8873 case PHY_KSZ8873: sprintf(phy[i].name, "KSZ8873 @ 0x%02x", active_phy_addr[i]); phy[i].init = ksz8873_init_phy; phy[i].is_phy_connected = ksz8873_is_phy_connected; phy[i].get_link_speed = ksz8873_get_link_speed; phy[i].auto_negotiate = ksz8873_auto_negotiate; break; #endif #ifdef PHY_LXT972 case PHY_LXT972: sprintf(phy[i].name, "LXT972 @ 0x%02x", active_phy_addr[i]); phy[i].init = lxt972_init_phy; phy[i].is_phy_connected = lxt972_is_phy_connected; phy[i].get_link_speed = lxt972_get_link_speed; phy[i].auto_negotiate = lxt972_auto_negotiate; break; #endif #ifdef PHY_DP83848 case PHY_DP83848: sprintf(phy[i].name, "DP83848 @ 0x%02x", active_phy_addr[i]); phy[i].init = dp83848_init_phy; phy[i].is_phy_connected = dp83848_is_phy_connected; phy[i].get_link_speed = dp83848_get_link_speed; phy[i].auto_negotiate = dp83848_auto_negotiate; break; #endif #ifdef PHY_ET1011C case PHY_ET1011C: sprintf(phy[i].name, "ET1011C @ 0x%02x", active_phy_addr[i]); phy[i].init = gen_init_phy; phy[i].is_phy_connected = gen_is_phy_connected; phy[i].get_link_speed = et1011c_get_link_speed; phy[i].auto_negotiate = gen_auto_negotiate; break; #endif default: sprintf(phy[i].name, "GENERIC @ 0x%02x", active_phy_addr[i]); phy[i].init = gen_init_phy; phy[i].is_phy_connected = gen_is_phy_connected; phy[i].get_link_speed = gen_get_link_speed; phy[i].auto_negotiate = gen_auto_negotiate; } debug("Ethernet PHY: %s\n", phy[i].name); int retval; struct mii_dev *mdiodev = mdio_alloc(); if (!mdiodev) return -ENOMEM; strncpy(mdiodev->name, phy[i].name, MDIO_NAME_LEN); mdiodev->read = davinci_mii_phy_read; mdiodev->write = davinci_mii_phy_write; retval = mdio_register(mdiodev); if (retval < 0) return retval; #ifdef DAVINCI_EMAC_GIG_ENABLE #define PHY_CONF_REG 22 /* Enable PHY to clock out TX_CLK */ davinci_eth_phy_read(active_phy_addr[i], PHY_CONF_REG, &tmp); tmp |= PHY_CONF_TXCLKEN; davinci_eth_phy_write(active_phy_addr[i], PHY_CONF_REG, tmp); davinci_eth_phy_read(active_phy_addr[i], PHY_CONF_REG, &tmp); #endif } #if defined(CONFIG_TI816X) || (defined(CONFIG_DRIVER_TI_EMAC_USE_RMII) && \ defined(CONFIG_MACH_DAVINCI_DA850_EVM) && \ !defined(CONFIG_DRIVER_TI_EMAC_RMII_NO_NEGOTIATE)) for (i = 0; i < num_phy; i++) { if (phy[i].is_phy_connected(i)) phy[i].auto_negotiate(i); } #endif return(1); }
static int davinci_emac_probe(struct device_d *dev) { struct davinci_emac_platform_data *pdata; struct davinci_emac_priv *priv; uint64_t start; uint32_t phy_mask; dev_dbg(dev, "+ emac_probe\n"); if (!dev->platform_data) { dev_err(dev, "no platform_data\n"); return -ENODEV; } pdata = dev->platform_data; priv = xzalloc(sizeof(*priv)); dev->priv = priv; priv->dev = dev; priv->adap_emac = dev_request_mem_region(dev, 0); priv->adap_ewrap = dev_request_mem_region(dev, 1); priv->adap_mdio = dev_request_mem_region(dev, 2); priv->emac_desc_base = dev_request_mem_region(dev, 3); /* EMAC descriptors */ priv->emac_rx_desc = priv->emac_desc_base + EMAC_RX_DESC_BASE; priv->emac_tx_desc = priv->emac_desc_base + EMAC_TX_DESC_BASE; priv->emac_rx_active_head = NULL; priv->emac_rx_active_tail = NULL; priv->emac_rx_queue_active = 0; /* Receive packet buffers */ priv->emac_rx_buffers = xmemalign(4096, EMAC_MAX_RX_BUFFERS * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)); priv->edev.priv = priv; priv->edev.init = davinci_emac_init; priv->edev.open = davinci_emac_open; priv->edev.halt = davinci_emac_halt; priv->edev.send = davinci_emac_send; priv->edev.recv = davinci_emac_recv; priv->edev.get_ethaddr = davinci_emac_get_ethaddr; priv->edev.set_ethaddr = davinci_emac_set_ethaddr; priv->edev.parent = dev; davinci_eth_mdio_enable(priv); start = get_time_ns(); while (1) { phy_mask = readl(priv->adap_mdio + EMAC_MDIO_ALIVE); if (phy_mask) { dev_info(dev, "detected phy mask 0x%x\n", phy_mask); phy_mask = ~phy_mask; break; } if (is_timeout(start, 256 * MSECOND)) { dev_err(dev, "no live phy, scanning all\n"); phy_mask = 0; break; } } if (pdata->interface_rmii) priv->interface = PHY_INTERFACE_MODE_RMII; else priv->interface = PHY_INTERFACE_MODE_MII; priv->phy_addr = pdata->phy_addr; priv->phy_flags = pdata->force_link ? PHYLIB_FORCE_LINK : 0; priv->miibus.read = davinci_miibus_read; priv->miibus.write = davinci_miibus_write; priv->miibus.priv = priv; priv->miibus.parent = dev; priv->miibus.phy_mask = phy_mask; mdiobus_register(&priv->miibus); eth_register(&priv->edev); dev_dbg(dev, "- emac_probe\n"); return 0; }