X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/0e069faefd0310e7c905c3452443371f02832cc7..9e9816322cf9331ed701a0d68a4f841bab106790:/target/linux/ramips/files/drivers/net/ramips.c?ds=sidebyside diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c index d8be97c7a..63570c791 100644 --- a/target/linux/ramips/files/drivers/net/ramips.c +++ b/target/linux/ramips/files/drivers/net/ramips.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -32,6 +33,9 @@ #ifdef CONFIG_RALINK_RT305X #include "ramips_esw.c" +#else +static inline int rt305x_esw_init(void) { return 0; } +static inline void rt305x_esw_exit(void) { } #endif #define phys_to_bus(a) (a & 0x1FFFFFFF) @@ -69,6 +73,55 @@ ramips_fe_int_enable(u32 mask) ramips_fe_rr(RAMIPS_FE_INT_ENABLE); } +static inline void +ramips_hw_set_macaddr(unsigned char *mac) +{ + ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH); + ramips_fe_wr((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5], + RAMIPS_GDMA1_MAC_ADRL); +} + +#ifdef CONFIG_RALINK_RT288X +static void +ramips_setup_mdio_cfg(struct raeth_priv *re) +{ + unsigned int mdio_cfg; + + mdio_cfg = RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 | + RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 | + RAMIPS_MDIO_CFG_GP1_FRC_EN; + + if (re->duplex == DUPLEX_FULL) + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_DUPLEX; + + if (re->tx_fc) + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_TX; + + if (re->rx_fc) + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_RX; + + switch (re->speed) { + case SPEED_10: + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_10; + break; + case SPEED_100: + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_100; + break; + case SPEED_1000: + mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_1000; + break; + default: + BUG(); + } + + ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG); +} +#else +static inline void ramips_setup_mdio_cfg(struct raeth_priv *re) +{ +} +#endif /* CONFIG_RALINK_RT288X */ + static void ramips_cleanup_dma(struct raeth_priv *re) { @@ -119,15 +172,16 @@ ramips_alloc_dma(struct raeth_priv *re) memset(re->rx, 0, sizeof(struct ramips_rx_dma) * NUM_RX_DESC); for (i = 0; i < NUM_RX_DESC; i++) { - struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_LENGTH + 2); + struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_LENGTH + + NET_IP_ALIGN); if (!new_skb) goto err_cleanup; - skb_reserve(new_skb, 2); + skb_reserve(new_skb, NET_IP_ALIGN); re->rx[i].rxd1 = dma_map_single(NULL, - skb_put(new_skb, 2), - MAX_RX_LENGTH + 2, + new_skb->data, + MAX_RX_LENGTH, DMA_FROM_DEVICE); re->rx[i].rxd2 |= RX_DMA_LSO; re->rx_skb[i] = new_skb; @@ -222,23 +276,26 @@ ramips_eth_rx_hw(unsigned long ptr) break; max_rx--; - rx_skb = priv->rx_skb[rx]; - rx_skb->len = RX_DMA_PLEN0(priv->rx[rx].rxd2); - rx_skb->dev = dev; - rx_skb->protocol = eth_type_trans(rx_skb, dev); - rx_skb->ip_summed = CHECKSUM_NONE; - dev->stats.rx_packets++; - dev->stats.rx_bytes += rx_skb->len; - netif_rx(rx_skb); - - new_skb = netdev_alloc_skb(dev, MAX_RX_LENGTH + 2); - priv->rx_skb[rx] = new_skb; - BUG_ON(!new_skb); - skb_reserve(new_skb, 2); - priv->rx[rx].rxd1 = dma_map_single(NULL, - new_skb->data, - MAX_RX_LENGTH + 2, - DMA_FROM_DEVICE); + new_skb = netdev_alloc_skb(dev, MAX_RX_LENGTH + NET_IP_ALIGN); + /* Reuse the buffer on allocation failures */ + if (new_skb) { + rx_skb = priv->rx_skb[rx]; + skb_put(rx_skb, RX_DMA_PLEN0(priv->rx[rx].rxd2)); + rx_skb->dev = dev; + rx_skb->protocol = eth_type_trans(rx_skb, dev); + rx_skb->ip_summed = CHECKSUM_NONE; + dev->stats.rx_packets++; + dev->stats.rx_bytes += rx_skb->len; + netif_rx(rx_skb); + + priv->rx_skb[rx] = new_skb; + skb_reserve(new_skb, NET_IP_ALIGN); + priv->rx[rx].rxd1 = dma_map_single(NULL, + new_skb->data, + MAX_RX_LENGTH, + DMA_FROM_DEVICE); + } + priv->rx[rx].rxd2 &= ~RX_DMA_DONE; wmb(); ramips_fe_wr(rx, RAMIPS_RX_CALC_IDX0); @@ -268,21 +325,6 @@ ramips_eth_tx_housekeeping(unsigned long ptr) ramips_fe_int_enable(RAMIPS_TX_DLY_INT); } -static int -ramips_eth_set_mac_addr(struct net_device *dev, void *priv) -{ - unsigned char *mac = priv; - - if (netif_running(dev)) - return -EBUSY; - - memcpy(dev->dev_addr, ((struct sockaddr*)priv)->sa_data, dev->addr_len); - ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH); - ramips_fe_wr((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5], - RAMIPS_GDMA1_MAC_ADRL); - return 0; -} - static void ramips_eth_timeout(struct net_device *dev) { @@ -325,6 +367,8 @@ ramips_eth_open(struct net_device *dev) if (err) goto err_free_irq; + ramips_hw_set_macaddr(dev->dev_addr); + ramips_setup_dma(priv); ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) | (RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | @@ -332,13 +376,15 @@ ramips_eth_open(struct net_device *dev) RAMIPS_PDMA_GLO_CFG); ramips_fe_wr((ramips_fe_rr(RAMIPS_FE_GLO_CFG) & ~(RAMIPS_US_CYC_CNT_MASK << RAMIPS_US_CYC_CNT_SHIFT)) | - ((rt305x_sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT), + ((priv->plat->sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT), RAMIPS_FE_GLO_CFG); tasklet_init(&priv->tx_housekeeping_tasklet, ramips_eth_tx_housekeeping, (unsigned long)dev); tasklet_init(&priv->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev); + ramips_setup_mdio_cfg(priv); + ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG); ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE); ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) & @@ -367,6 +413,10 @@ ramips_eth_stop(struct net_device *dev) ramips_fe_wr(ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & ~(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | RAMIPS_TX_DMA_EN), RAMIPS_PDMA_GLO_CFG); + + /* disable all interrupts in the hw */ + ramips_fe_wr(0, RAMIPS_FE_INT_ENABLE); + free_irq(dev->irq, dev); netif_stop_queue(dev); tasklet_kill(&priv->tx_housekeeping_tasklet); @@ -380,13 +430,11 @@ static int __init ramips_eth_probe(struct net_device *dev) { struct raeth_priv *priv = netdev_priv(dev); - struct sockaddr addr; BUG_ON(!priv->plat->reset_fe); priv->plat->reset_fe(); net_srandom(jiffies); - memcpy(addr.sa_data, priv->plat->mac, 6); - ramips_eth_set_mac_addr(dev, &addr); + memcpy(dev->dev_addr, priv->plat->mac, ETH_ALEN); ether_setup(dev); dev->mtu = 1500; @@ -403,7 +451,7 @@ static const struct net_device_ops ramips_eth_netdev_ops = { .ndo_start_xmit = ramips_eth_hard_start_xmit, .ndo_tx_timeout = ramips_eth_timeout, .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = ramips_eth_set_mac_addr, + .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -449,6 +497,11 @@ ramips_eth_plat_probe(struct platform_device *plat) ramips_dev->netdev_ops = &ramips_eth_netdev_ops; priv = netdev_priv(ramips_dev); + + priv->speed = data->speed; + priv->duplex = data->duplex; + priv->rx_fc = data->rx_fc; + priv->tx_fc = data->tx_fc; priv->plat = data; err = register_netdev(ramips_dev); @@ -457,9 +510,6 @@ ramips_eth_plat_probe(struct platform_device *plat) goto err_free_dev; } -#ifdef CONFIG_RALINK_RT305X - rt305x_esw_init(); -#endif printk(KERN_DEBUG "ramips_eth: loaded\n"); return 0; @@ -491,10 +541,23 @@ static struct platform_driver ramips_eth_driver = { static int __init ramips_eth_init(void) { - int ret = platform_driver_register(&ramips_eth_driver); + int ret; + + ret = rt305x_esw_init(); if (ret) + return ret; + + ret = platform_driver_register(&ramips_eth_driver); + if (ret) { printk(KERN_ERR "ramips_eth: Error registering platfom driver!\n"); + goto esw_cleanup; + } + + return 0; + +esw_cleanup: + rt305x_esw_exit(); return ret; } @@ -502,6 +565,7 @@ static void __exit ramips_eth_cleanup(void) { platform_driver_unregister(&ramips_eth_driver); + rt305x_esw_exit(); } module_init(ramips_eth_init);