add phylib support to ethernet driver
SVN-Revision: 20400
This commit is contained in:
John Crispin
parent
7a00430b3e
commit
a2155caf7b
1 changed files with 112 additions and 11 deletions
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@ -29,9 +29,9 @@ Index: linux-2.6.30.8/drivers/net/Makefile
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Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ linux-2.6.30.8/drivers/net/ifxmips_mii0.c 2009-10-19 21:41:10.000000000 +0200
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@@ -0,0 +1,389 @@
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--- /dev/null 2010-01-25 20:01:36.843225078 +0100
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+++ linux-2.6.30.10/drivers/net/ifxmips_mii0.c 2010-03-13 19:04:25.000000000 +0100
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@@ -0,0 +1,489 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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@ -60,6 +60,7 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+#include <linux/in.h>
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+#include <linux/netdevice.h>
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+#include <linux/etherdevice.h>
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+#include <linux/phy.h>
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+#include <linux/ip.h>
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+#include <linux/tcp.h>
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+#include <linux/skbuff.h>
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@ -79,12 +80,17 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+ struct net_device_stats stats;
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+ struct dma_device_info *dma_device;
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+ struct sk_buff *skb;
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+
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+ struct mii_bus *mii_bus;
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+ struct phy_device *phydev;
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+ int oldlink, oldspeed, oldduplex;
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+};
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+
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+static struct net_device *ifxmips_mii0_dev;
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+static unsigned char mac_addr[MAX_ADDR_LEN];
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+
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+void ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
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+static int ifxmips_mdiobus_write(struct mii_bus *bus, int phy_addr,
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+ int phy_reg, u16 phy_data)
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+{
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+ u32 val = MDIO_ACC_REQUEST |
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+ ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
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@ -94,10 +100,11 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST)
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+ ;
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+ ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
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+}
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+EXPORT_SYMBOL(ifxmips_write_mdio);
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+
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+unsigned short ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
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+ return 0;
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+}
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+
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+static int ifxmips_mdiobus_read(struct mii_bus *bus, int phy_addr, int phy_reg)
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+{
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+ u32 val = MDIO_ACC_REQUEST | MDIO_ACC_READ |
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+ ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
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@ -111,7 +118,6 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+ val = ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_VAL_MASK;
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+ return val;
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+}
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+EXPORT_SYMBOL(ifxmips_read_mdio);
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+
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+int ifxmips_ifxmips_mii_open(struct net_device *dev)
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+{
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@ -300,12 +306,91 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+ return &((struct ifxmips_mii_priv *)netdev_priv(dev))->stats;
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+}
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+
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+static void
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+ifxmips_adjust_link(struct net_device *dev)
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+{
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+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
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+ struct phy_device *phydev = priv->phydev;
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+ int new_state = 0;
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+
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+ /* Did anything change? */
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+ if (priv->oldlink != phydev->link ||
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+ priv->oldduplex != phydev->duplex ||
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+ priv->oldspeed != phydev->speed) {
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+ /* Yes, so update status and mark as changed */
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+ new_state = 1;
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+ priv->oldduplex = phydev->duplex;
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+ priv->oldspeed = phydev->speed;
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+ priv->oldlink = phydev->link;
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+ }
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+
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+ /* If link status changed, show new status */
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+ if (new_state)
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+ phy_print_status(phydev);
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+}
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+
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+static int mii_probe(struct net_device *dev)
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+{
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+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
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+ struct phy_device *phydev = NULL;
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+ int phy_addr;
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+
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+ priv->oldlink = 0;
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+ priv->oldspeed = 0;
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+ priv->oldduplex = -1;
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+
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+ /* find the first (lowest address) PHY on the current MAC's MII bus */
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+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
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+ if (priv->mii_bus->phy_map[phy_addr]) {
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+ phydev = priv->mii_bus->phy_map[phy_addr];
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+ break; /* break out with first one found */
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+ }
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+ }
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+
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+ if (!phydev) {
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+ printk (KERN_ERR "%s: no PHY found\n", dev->name);
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+ return -ENODEV;
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+ }
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+
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+ /* now we are supposed to have a proper phydev, to attach to... */
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+ BUG_ON(!phydev);
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+ BUG_ON(phydev->attached_dev);
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+
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+ phydev = phy_connect(dev, dev_name(&phydev->dev), &ifxmips_adjust_link,
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+ 0, PHY_INTERFACE_MODE_MII);
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+
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+ if (IS_ERR(phydev)) {
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+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
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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 | SUPPORTED_Asym_Pause */
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+ | SUPPORTED_MII
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+ | SUPPORTED_TP);
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+
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+ phydev->advertising = phydev->supported;
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+
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+ priv->phydev = phydev;
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+
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+ printk(KERN_INFO "%s: attached PHY driver [%s] "
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+ "(mii_bus:phy_addr=%s, irq=%d)\n",
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+ dev->name, phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
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+
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+ return 0;
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+}
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+
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+
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+static int ifxmips_mii_dev_init(struct net_device *dev)
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+{
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+ int i;
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+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
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+ ether_setup(dev);
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+ printk(KERN_INFO "ifxmips_mii0: %s is up\n", dev->name);
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+ dev->open = ifxmips_ifxmips_mii_open;
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+ dev->stop = ifxmips_mii_release;
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+ dev->hard_start_xmit = ifxmips_mii_tx;
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@ -336,12 +421,28 @@ Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
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+
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+ dma_device_register(priv->dma_device);
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+
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+ printk(KERN_INFO "ifxmips_mii0: using mac=");
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+ printk(KERN_INFO "%s: using mac=", dev->name);
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+ for (i = 0; i < 6; i++) {
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+ dev->dev_addr[i] = mac_addr[i];
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+ printk("%02X%c", dev->dev_addr[i], (i == 5) ? ('\n') : (':'));
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+ }
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+ return 0;
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+
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+ priv->mii_bus = mdiobus_alloc();
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+ if (priv->mii_bus == NULL)
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+ return -ENOMEM;
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+
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+ priv->mii_bus->priv = dev;
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+ priv->mii_bus->read = ifxmips_mdiobus_read;
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+ priv->mii_bus->write = ifxmips_mdiobus_write;
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+ priv->mii_bus->name = "ifxmips_mii";
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+ snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0);
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+ priv->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
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+ for(i = 0; i < PHY_MAX_ADDR; ++i)
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+ priv->mii_bus->irq[i] = PHY_POLL;
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+
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+ mdiobus_register(priv->mii_bus);
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+
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+ return mii_probe(dev);
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+}
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+
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+static void ifxmips_mii_chip_init(int mode)
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