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Diffstat (limited to 'target/linux/brcm63xx/patches-3.3/410-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch')
-rw-r--r--target/linux/brcm63xx/patches-3.3/410-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch169
1 files changed, 169 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.3/410-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch b/target/linux/brcm63xx/patches-3.3/410-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch
new file mode 100644
index 0000000..2102db3
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.3/410-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch
@@ -0,0 +1,169 @@
+From b11218c750ab92cfab4408a0328f1b36ceec3f33 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Fri, 6 Jan 2012 12:24:18 +0100
+Subject: [PATCH 19/63] NET: bcm63xx_enet: move phy_(dis)connect into probe/remove
+
+Only connect/disconnect the phy during probe and remove, not during any
+open/close. The phy seldom changes during the runtime, and disconnecting
+the phy during close will prevent it from keeping any configuration over
+a down/up cycle.
+
+Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 84 +++++++++++++-------------
+ 1 files changed, 41 insertions(+), 43 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -784,10 +784,8 @@ static int bcm_enet_open(struct net_devi
+ struct bcm_enet_priv *priv;
+ struct sockaddr addr;
+ struct device *kdev;
+- struct phy_device *phydev;
+ int i, ret;
+ unsigned int size;
+- char phy_id[MII_BUS_ID_SIZE + 3];
+ void *p;
+ u32 val;
+
+@@ -795,40 +793,10 @@ static int bcm_enet_open(struct net_devi
+ kdev = &priv->pdev->dev;
+
+ if (priv->has_phy) {
+- /* connect to PHY */
+- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
+- priv->mii_bus->id, priv->phy_id);
+-
+- phydev = phy_connect(dev, phy_id, bcm_enet_adjust_phy_link, 0,
+- PHY_INTERFACE_MODE_MII);
+-
+- if (IS_ERR(phydev)) {
+- dev_err(kdev, "could not attach to PHY\n");
+- return PTR_ERR(phydev);
+- }
+-
+- /* mask with MAC supported features */
+- phydev->supported &= (SUPPORTED_10baseT_Half |
+- SUPPORTED_10baseT_Full |
+- SUPPORTED_100baseT_Half |
+- SUPPORTED_100baseT_Full |
+- SUPPORTED_Autoneg |
+- SUPPORTED_Pause |
+- SUPPORTED_MII);
+- phydev->advertising = phydev->supported;
+-
+- if (priv->pause_auto && priv->pause_rx && priv->pause_tx)
+- phydev->advertising |= SUPPORTED_Pause;
+- else
+- phydev->advertising &= ~SUPPORTED_Pause;
+-
+- dev_info(kdev, "attached PHY at address %d [%s]\n",
+- phydev->addr, phydev->drv->name);
+-
++ /* Reset state */
+ priv->old_link = 0;
+ priv->old_duplex = -1;
+ priv->old_pause = -1;
+- priv->phydev = phydev;
+ }
+
+ /* mask all interrupts and request them */
+@@ -838,7 +806,7 @@ static int bcm_enet_open(struct net_devi
+
+ ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
+ if (ret)
+- goto out_phy_disconnect;
++ return ret;
+
+ ret = request_irq(priv->irq_rx, bcm_enet_isr_dma, IRQF_DISABLED,
+ dev->name, dev);
+@@ -1025,9 +993,6 @@ out_freeirq_rx:
+ out_freeirq:
+ free_irq(dev->irq, dev);
+
+-out_phy_disconnect:
+- phy_disconnect(priv->phydev);
+-
+ return ret;
+ }
+
+@@ -1132,12 +1097,6 @@ static int bcm_enet_stop(struct net_devi
+ free_irq(priv->irq_rx, dev);
+ free_irq(dev->irq, dev);
+
+- /* release phy */
+- if (priv->has_phy) {
+- phy_disconnect(priv->phydev);
+- priv->phydev = NULL;
+- }
+-
+ return 0;
+ }
+
+@@ -1714,6 +1673,8 @@ static int __devinit bcm_enet_probe(stru
+
+ /* MII bus registration */
+ if (priv->has_phy) {
++ struct phy_device *phydev;
++ char phy_id[MII_BUS_ID_SIZE + 3];
+
+ priv->mii_bus = mdiobus_alloc();
+ if (!priv->mii_bus) {
+@@ -1750,6 +1711,38 @@ static int __devinit bcm_enet_probe(stru
+ dev_err(&pdev->dev, "unable to register mdio bus\n");
+ goto out_free_mdio;
+ }
++
++ /* connect to PHY */
++ snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
++ priv->mii_bus->id, priv->phy_id);
++
++ phydev = phy_connect(dev, phy_id, bcm_enet_adjust_phy_link, 0,
++ PHY_INTERFACE_MODE_MII);
++
++ if (IS_ERR(phydev)) {
++ dev_err(&pdev->dev, "could not attach to PHY\n");
++ goto out_unregister_mdio;
++ }
++
++ /* mask with MAC supported features */
++ phydev->supported &= (SUPPORTED_10baseT_Half |
++ SUPPORTED_10baseT_Full |
++ SUPPORTED_100baseT_Half |
++ SUPPORTED_100baseT_Full |
++ SUPPORTED_Autoneg |
++ SUPPORTED_Pause |
++ SUPPORTED_MII);
++ phydev->advertising = phydev->supported;
++
++ if (priv->pause_auto && priv->pause_rx && priv->pause_tx)
++ phydev->advertising |= SUPPORTED_Pause;
++ else
++ phydev->advertising &= ~SUPPORTED_Pause;
++
++ dev_info(&pdev->dev, "attached PHY at address %d [%s]\n",
++ phydev->addr, phydev->drv->name);
++
++ priv->phydev = phydev;
+ } else {
+
+ /* run platform code to initialize PHY device */
+@@ -1795,6 +1788,9 @@ static int __devinit bcm_enet_probe(stru
+ return 0;
+
+ out_unregister_mdio:
++ if (priv->phydev)
++ phy_disconnect(priv->phydev);
++
+ if (priv->mii_bus) {
+ mdiobus_unregister(priv->mii_bus);
+ kfree(priv->mii_bus->irq);
+@@ -1845,6 +1841,8 @@ static int __devexit bcm_enet_remove(str
+ enet_writel(priv, 0, ENET_MIISC_REG);
+
+ if (priv->has_phy) {
++ phy_disconnect(priv->phydev);
++ priv->phydev = NULL;
+ mdiobus_unregister(priv->mii_bus);
+ kfree(priv->mii_bus->irq);
+ mdiobus_free(priv->mii_bus);