170 lines
4.7 KiB
Diff
170 lines
4.7 KiB
Diff
From b11218c750ab92cfab4408a0328f1b36ceec3f33 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jonas.gorski@gmail.com>
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Date: Fri, 6 Jan 2012 12:24:18 +0100
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Subject: [PATCH 19/63] NET: bcm63xx_enet: move phy_(dis)connect into probe/remove
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Only connect/disconnect the phy during probe and remove, not during any
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open/close. The phy seldom changes during the runtime, and disconnecting
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the phy during close will prevent it from keeping any configuration over
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a down/up cycle.
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Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
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---
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drivers/net/ethernet/broadcom/bcm63xx_enet.c | 84 +++++++++++++-------------
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1 files changed, 41 insertions(+), 43 deletions(-)
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--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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@@ -784,10 +784,8 @@ static int bcm_enet_open(struct net_devi
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struct bcm_enet_priv *priv;
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struct sockaddr addr;
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struct device *kdev;
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- struct phy_device *phydev;
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int i, ret;
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unsigned int size;
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- char phy_id[MII_BUS_ID_SIZE + 3];
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void *p;
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u32 val;
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@@ -795,40 +793,10 @@ static int bcm_enet_open(struct net_devi
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kdev = &priv->pdev->dev;
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if (priv->has_phy) {
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- /* connect to PHY */
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- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
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- priv->mii_bus->id, priv->phy_id);
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-
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- phydev = phy_connect(dev, phy_id, bcm_enet_adjust_phy_link,
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- PHY_INTERFACE_MODE_MII);
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-
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- if (IS_ERR(phydev)) {
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- dev_err(kdev, "could not attach to PHY\n");
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- return PTR_ERR(phydev);
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- }
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-
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- /* mask with MAC supported features */
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- phydev->supported &= (SUPPORTED_10baseT_Half |
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- SUPPORTED_10baseT_Full |
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- SUPPORTED_100baseT_Half |
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- SUPPORTED_100baseT_Full |
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- SUPPORTED_Autoneg |
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- SUPPORTED_Pause |
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- SUPPORTED_MII);
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- phydev->advertising = phydev->supported;
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-
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- if (priv->pause_auto && priv->pause_rx && priv->pause_tx)
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- phydev->advertising |= SUPPORTED_Pause;
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- else
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- phydev->advertising &= ~SUPPORTED_Pause;
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-
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- dev_info(kdev, "attached PHY at address %d [%s]\n",
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- phydev->addr, phydev->drv->name);
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-
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+ /* Reset state */
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priv->old_link = 0;
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priv->old_duplex = -1;
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priv->old_pause = -1;
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- priv->phydev = phydev;
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}
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/* mask all interrupts and request them */
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@@ -838,7 +806,7 @@ static int bcm_enet_open(struct net_devi
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ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
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if (ret)
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- goto out_phy_disconnect;
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+ return ret;
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ret = request_irq(priv->irq_rx, bcm_enet_isr_dma, IRQF_DISABLED,
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dev->name, dev);
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@@ -1023,9 +991,6 @@ out_freeirq_rx:
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out_freeirq:
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free_irq(dev->irq, dev);
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-out_phy_disconnect:
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- phy_disconnect(priv->phydev);
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-
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return ret;
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}
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@@ -1130,12 +1095,6 @@ static int bcm_enet_stop(struct net_devi
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free_irq(priv->irq_rx, dev);
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free_irq(dev->irq, dev);
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- /* release phy */
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- if (priv->has_phy) {
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- phy_disconnect(priv->phydev);
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- priv->phydev = NULL;
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- }
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-
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return 0;
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}
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@@ -1707,6 +1666,8 @@ static int bcm_enet_probe(struct platfor
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/* MII bus registration */
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if (priv->has_phy) {
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+ struct phy_device *phydev;
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+ char phy_id[MII_BUS_ID_SIZE + 3];
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priv->mii_bus = mdiobus_alloc();
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if (!priv->mii_bus) {
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@@ -1744,6 +1705,38 @@ static int bcm_enet_probe(struct platfor
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dev_err(&pdev->dev, "unable to register mdio bus\n");
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goto out_free_mdio;
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}
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+
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+ /* connect to PHY */
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+ snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
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+ priv->mii_bus->id, priv->phy_id);
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+
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+ phydev = phy_connect(dev, phy_id, bcm_enet_adjust_phy_link,
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+ PHY_INTERFACE_MODE_MII);
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+
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+ if (IS_ERR(phydev)) {
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+ dev_err(&pdev->dev, "could not attach to PHY\n");
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+ goto out_unregister_mdio;
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+ }
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+
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+ /* mask with MAC supported features */
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+ phydev->supported &= (SUPPORTED_10baseT_Half |
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+ SUPPORTED_10baseT_Full |
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+ SUPPORTED_100baseT_Half |
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+ SUPPORTED_100baseT_Full |
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+ SUPPORTED_Autoneg |
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+ SUPPORTED_Pause |
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+ SUPPORTED_MII);
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+ phydev->advertising = phydev->supported;
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+
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+ if (priv->pause_auto && priv->pause_rx && priv->pause_tx)
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+ phydev->advertising |= SUPPORTED_Pause;
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+ else
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+ phydev->advertising &= ~SUPPORTED_Pause;
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+
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+ dev_info(&pdev->dev, "attached PHY at address %d [%s]\n",
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+ phydev->addr, phydev->drv->name);
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+
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+ priv->phydev = phydev;
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} else {
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/* run platform code to initialize PHY device */
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@@ -1789,6 +1782,9 @@ static int bcm_enet_probe(struct platfor
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return 0;
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out_unregister_mdio:
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+ if (priv->phydev)
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+ phy_disconnect(priv->phydev);
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+
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if (priv->mii_bus)
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mdiobus_unregister(priv->mii_bus);
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@@ -1830,6 +1826,8 @@ static int bcm_enet_remove(struct platfo
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enet_writel(priv, 0, ENET_MIISC_REG);
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if (priv->has_phy) {
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+ phy_disconnect(priv->phydev);
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+ priv->phydev = NULL;
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mdiobus_unregister(priv->mii_bus);
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mdiobus_free(priv->mii_bus);
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} else {
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