156 lines
4 KiB
Diff
156 lines
4 KiB
Diff
--- a/drivers/net/ethernet/korina.c
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+++ b/drivers/net/ethernet/korina.c
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@@ -122,8 +122,6 @@ struct korina_private {
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int rx_irq;
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int tx_irq;
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- int ovr_irq;
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- int und_irq;
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spinlock_t lock; /* NIC xmit lock */
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@@ -890,8 +888,6 @@ static void korina_restart_task(struct w
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*/
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disable_irq(lp->rx_irq);
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disable_irq(lp->tx_irq);
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- disable_irq(lp->ovr_irq);
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- disable_irq(lp->und_irq);
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writel(readl(&lp->tx_dma_regs->dmasm) |
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DMA_STAT_FINI | DMA_STAT_ERR,
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@@ -910,40 +906,10 @@ static void korina_restart_task(struct w
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}
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korina_multicast_list(dev);
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- enable_irq(lp->und_irq);
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- enable_irq(lp->ovr_irq);
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enable_irq(lp->tx_irq);
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enable_irq(lp->rx_irq);
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}
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-static void korina_clear_and_restart(struct net_device *dev, u32 value)
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-{
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- struct korina_private *lp = netdev_priv(dev);
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-
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- netif_stop_queue(dev);
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- writel(value, &lp->eth_regs->ethintfc);
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- schedule_work(&lp->restart_task);
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-}
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-
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-/* Ethernet Tx Underflow interrupt */
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-static irqreturn_t korina_und_interrupt(int irq, void *dev_id)
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-{
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- struct net_device *dev = dev_id;
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- struct korina_private *lp = netdev_priv(dev);
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- unsigned int und;
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-
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- spin_lock(&lp->lock);
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-
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- und = readl(&lp->eth_regs->ethintfc);
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-
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- if (und & ETH_INT_FC_UND)
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- korina_clear_and_restart(dev, und & ~ETH_INT_FC_UND);
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-
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- spin_unlock(&lp->lock);
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-
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- return IRQ_HANDLED;
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-}
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-
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static void korina_tx_timeout(struct net_device *dev)
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{
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struct korina_private *lp = netdev_priv(dev);
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@@ -951,25 +917,6 @@ static void korina_tx_timeout(struct net
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schedule_work(&lp->restart_task);
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}
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-/* Ethernet Rx Overflow interrupt */
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-static irqreturn_t
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-korina_ovr_interrupt(int irq, void *dev_id)
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-{
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- struct net_device *dev = dev_id;
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- struct korina_private *lp = netdev_priv(dev);
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- unsigned int ovr;
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-
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- spin_lock(&lp->lock);
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- ovr = readl(&lp->eth_regs->ethintfc);
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-
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- if (ovr & ETH_INT_FC_OVR)
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- korina_clear_and_restart(dev, ovr & ~ETH_INT_FC_OVR);
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-
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- spin_unlock(&lp->lock);
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-
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- return IRQ_HANDLED;
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-}
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-
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void korina_poll_controller(struct net_device *dev)
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{
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@@ -992,8 +939,7 @@ static int korina_open(struct net_device
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}
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/* Install the interrupt handler
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- * that handles the Done Finished
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- * Ovr and Und Events */
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+ * that handles the Done Finished */
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ret = request_irq(lp->rx_irq, korina_rx_dma_interrupt,
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0, "Korina ethernet Rx", dev);
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if (ret < 0) {
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@@ -1009,31 +955,10 @@ static int korina_open(struct net_device
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goto err_free_rx_irq;
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}
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- /* Install handler for overrun error. */
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- ret = request_irq(lp->ovr_irq, korina_ovr_interrupt,
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- 0, "Ethernet Overflow", dev);
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- if (ret < 0) {
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- printk(KERN_ERR "%s: unable to get OVR IRQ %d\n",
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- dev->name, lp->ovr_irq);
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- goto err_free_tx_irq;
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- }
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-
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- /* Install handler for underflow error. */
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- ret = request_irq(lp->und_irq, korina_und_interrupt,
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- 0, "Ethernet Underflow", dev);
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- if (ret < 0) {
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- printk(KERN_ERR "%s: unable to get UND IRQ %d\n",
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- dev->name, lp->und_irq);
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- goto err_free_ovr_irq;
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- }
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mod_timer(&lp->media_check_timer, jiffies + 1);
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out:
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return ret;
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-err_free_ovr_irq:
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- free_irq(lp->ovr_irq, dev);
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-err_free_tx_irq:
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- free_irq(lp->tx_irq, dev);
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err_free_rx_irq:
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free_irq(lp->rx_irq, dev);
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err_release:
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@@ -1051,8 +976,6 @@ static int korina_close(struct net_devic
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/* Disable interrupts */
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disable_irq(lp->rx_irq);
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disable_irq(lp->tx_irq);
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- disable_irq(lp->ovr_irq);
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- disable_irq(lp->und_irq);
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korina_abort_tx(dev);
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tmp = readl(&lp->tx_dma_regs->dmasm);
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@@ -1072,8 +995,6 @@ static int korina_close(struct net_devic
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free_irq(lp->rx_irq, dev);
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free_irq(lp->tx_irq, dev);
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- free_irq(lp->ovr_irq, dev);
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- free_irq(lp->und_irq, dev);
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return 0;
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}
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@@ -1113,8 +1034,6 @@ static int korina_probe(struct platform_
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lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
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lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
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- lp->ovr_irq = platform_get_irq_byname(pdev, "korina_ovr");
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- lp->und_irq = platform_get_irq_byname(pdev, "korina_und");
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r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_regs");
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dev->base_addr = r->start;
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