linux/ixp4xx: add preliminary 2.6.37 kernel support

[openwrt.git] / target / linux / ramips / files / drivers / net / ramips.c

diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index 34d5b3e..fb6e6e8 100644 (file)
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/skbuff.h>
 #include <linux/etherdevice.h>
+#include <linux/ethtool.h>
 #include <linux/platform_device.h>
 
 #include <ramips_eth_platform.h>
@@ -51,6 +52,73 @@ ramips_fe_rr(unsigned reg)
        return __raw_readl(ramips_fe_base + reg);
 }
 
+static inline void
+ramips_fe_int_disable(u32 mask)
+{
+       ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~mask,
+                    RAMIPS_FE_INT_ENABLE);
+       /* flush write */
+       ramips_fe_rr(RAMIPS_FE_INT_ENABLE);
+}
+
+static inline void
+ramips_fe_int_enable(u32 mask)
+{
+       ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | mask,
+                    RAMIPS_FE_INT_ENABLE);
+       /* flush write */
+       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)
 {
@@ -205,7 +273,7 @@ ramips_eth_rx_hw(unsigned long ptr)
                max_rx--;
 
                rx_skb = priv->rx_skb[rx];
-               rx_skb->len = RX_DMA_PLEN0(priv->rx[rx].rxd2);
+               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;
@@ -229,8 +297,7 @@ ramips_eth_rx_hw(unsigned long ptr)
        if (max_rx == 0)
                tasklet_schedule(&priv->rx_tasklet);
        else
-               ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_RX_DLY_INT,
-                            RAMIPS_FE_INT_ENABLE);
+               ramips_fe_int_enable(RAMIPS_RX_DLY_INT);
 }
 
 static void
@@ -248,23 +315,7 @@ ramips_eth_tx_housekeeping(unsigned long ptr)
                        priv->skb_free_idx = 0;
        }
 
-       ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_TX_DLY_INT,
-                    RAMIPS_FE_INT_ENABLE);
-}
-
-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;
+       ramips_fe_int_enable(RAMIPS_TX_DLY_INT);
 }
 
 static void
@@ -284,8 +335,7 @@ ramips_eth_irq(int irq, void *dev)
        ramips_fe_wr(0xFFFFFFFF, RAMIPS_FE_INT_STATUS);
 
        if (fe_int & RAMIPS_RX_DLY_INT) {
-               ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~(RAMIPS_RX_DLY_INT),
-                            RAMIPS_FE_INT_ENABLE);
+               ramips_fe_int_disable(RAMIPS_RX_DLY_INT);
                tasklet_schedule(&priv->rx_tasklet);
        }
 
@@ -310,6 +360,8 @@ 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 |
@@ -317,13 +369,15 @@ 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) &
@@ -352,6 +406,10 @@ 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);
@@ -365,13 +423,11 @@ 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;
@@ -388,7 +444,7 @@ 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,
 };
 
@@ -434,6 +490,11 @@ 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);