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Message-Id: <20080411.002523.18305938.anemo@mba.ocn.ne.jp>
Date: Fri, 11 Apr 2008 00:25:23 +0900 (JST)
From: Atsushi Nemoto <anemo@....ocn.ne.jp>
To: linux-mips@...ux-mips.org
Cc: Jeff Garzik <jeff@...zik.org>, netdev@...r.kernel.org
Subject: [PATCH 5/6] tc35815: Use generic PHY layer
Convert the tc35815 driver to use the generic PHY layer in
drivers/net/phy.
Signed-off-by: Atsushi Nemoto <anemo@....ocn.ne.jp>
---
drivers/net/Kconfig | 2 +-
drivers/net/tc35815.c | 1028 ++++++++++++++-----------------------------------
2 files changed, 291 insertions(+), 739 deletions(-)
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 757ba15..c1f2fd5 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1431,7 +1431,7 @@ config CS89x0
config TC35815
tristate "TOSHIBA TC35815 Ethernet support"
depends on NET_PCI && PCI && MIPS
- select MII
+ select PHYLIB
config EEPRO100
tristate "EtherExpressPro/100 support (eepro100, original Becker driver)"
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index 60eff78..de8b18e 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -23,9 +23,9 @@
*/
#ifdef TC35815_NAPI
-#define DRV_VERSION "1.36-NAPI"
+#define DRV_VERSION "1.37-NAPI"
#else
-#define DRV_VERSION "1.36"
+#define DRV_VERSION "1.37"
#endif
static const char *version = "tc35815.c:v" DRV_VERSION "\n";
#define MODNAME "tc35815"
@@ -47,8 +47,8 @@ static const char *version = "tc35815.c:v" DRV_VERSION "\n";
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/pci.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/byteorder.h>
@@ -87,7 +87,6 @@ MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl);
static struct tc35815_options {
int speed;
int duplex;
- int doforce;
} options;
/*
@@ -401,15 +400,6 @@ struct FrFD {
#define TC35815_TX_TIMEOUT msecs_to_jiffies(400)
-/* Timer state engine. */
-enum tc35815_timer_state {
- arbwait = 0, /* Waiting for auto negotiation to complete. */
- lupwait = 1, /* Auto-neg complete, awaiting link-up status. */
- ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */
- asleep = 3, /* Time inactive. */
- lcheck = 4, /* Check link status. */
-};
-
/* Information that need to be kept for each board. */
struct tc35815_local {
struct pci_dev *pci_dev;
@@ -432,12 +422,12 @@ struct tc35815_local {
*/
spinlock_t lock;
- int phy_addr;
- int fullduplex;
- unsigned short saved_lpa;
- struct timer_list timer;
- enum tc35815_timer_state timer_state; /* State of auto-neg timer. */
- unsigned int timer_ticks; /* Number of clicks at each state */
+ struct mii_bus mii_bus;
+ struct phy_device *phy_dev;
+ int duplex;
+ int speed;
+ int link;
+ struct work_struct restart_work;
/*
* Transmitting: Batch Mode.
@@ -475,8 +465,6 @@ struct tc35815_local {
dma_addr_t skb_dma;
} tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM];
#endif
- struct mii_if_info mii;
- unsigned short mii_id[2];
u32 msg_enable;
board_t boardtype;
};
@@ -586,19 +574,218 @@ static const struct ethtool_ops tc35815_ethtool_ops;
/* Example routines you must write ;->. */
static void tc35815_chip_reset(struct net_device *dev);
static void tc35815_chip_init(struct net_device *dev);
-static void tc35815_find_phy(struct net_device *dev);
-static void tc35815_phy_chip_init(struct net_device *dev);
#ifdef DEBUG
static void panic_queues(struct net_device *dev);
#endif
-static void tc35815_timer(unsigned long data);
-static void tc35815_start_auto_negotiation(struct net_device *dev,
- struct ethtool_cmd *ep);
-static int tc_mdio_read(struct net_device *dev, int phy_id, int location);
-static void tc_mdio_write(struct net_device *dev, int phy_id, int location,
- int val);
+static void tc35815_restart_work(struct work_struct *work);
+
+static int tc_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+ struct net_device *dev = bus->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ unsigned long timeout = jiffies + 10;
+
+ tc_writel(MD_CA_Busy | (mii_id << 5) | (regnum & 0x1f), &tr->MD_CA);
+ while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
+ if (time_after(jiffies, timeout))
+ return -EIO;
+ cpu_relax();
+ }
+ return tc_readl(&tr->MD_Data) & 0xffff;
+}
+
+static int tc_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 val)
+{
+ struct net_device *dev = bus->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ unsigned long timeout = jiffies + 10;
+
+ tc_writel(val, &tr->MD_Data);
+ tc_writel(MD_CA_Busy | MD_CA_Wr | (mii_id << 5) | (regnum & 0x1f),
+ &tr->MD_CA);
+ while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
+ if (time_after(jiffies, timeout))
+ return -EIO;
+ cpu_relax();
+ }
+ return 0;
+}
+
+static void tc_handle_link_change(struct net_device *dev)
+{
+ struct tc35815_local *lp = netdev_priv(dev);
+ struct phy_device *phydev = lp->phy_dev;
+ unsigned long flags;
+ int status_change = 0;
+
+ spin_lock_irqsave(&lp->lock, flags);
+ if (phydev->link &&
+ (lp->speed != phydev->speed || lp->duplex != phydev->duplex)) {
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ u32 reg;
+
+ reg = tc_readl(&tr->MAC_Ctl);
+ reg |= MAC_HaltReq;
+ tc_writel(reg, &tr->MAC_Ctl);
+ if (phydev->duplex == DUPLEX_FULL)
+ reg |= MAC_FullDup;
+ else
+ reg &= ~MAC_FullDup;
+ tc_writel(reg, &tr->MAC_Ctl);
+ reg &= ~MAC_HaltReq;
+ tc_writel(reg, &tr->MAC_Ctl);
+
+ /*
+ * TX4939 PCFG.SPEEDn bit will be changed on
+ * NETDEV_CHANGE event.
+ */
+
+#if !defined(NO_CHECK_CARRIER) && defined(WORKAROUND_LOSTCAR)
+ /*
+ * WORKAROUND: enable LostCrS only if half duplex
+ * operation.
+ * (TX4939 does not have EnLCarr)
+ */
+ if (phydev->duplex == DUPLEX_HALF &&
+ lp->boardtype != TC35815_TX4939)
+ tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr,
+ &tr->Tx_Ctl);
+#endif
+
+ lp->speed = phydev->speed;
+ lp->duplex = phydev->duplex;
+ status_change = 1;
+ }
+
+ if (phydev->link != lp->link) {
+ if (phydev->link) {
+#ifdef WORKAROUND_100HALF_PROMISC
+ /* delayed promiscuous enabling */
+ if (dev->flags & IFF_PROMISC)
+ tc35815_set_multicast_list(dev);
+#endif
+ netif_schedule(dev);
+ } else {
+ lp->speed = 0;
+ lp->duplex = -1;
+ }
+ lp->link = phydev->link;
+
+ status_change = 1;
+ }
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ if (status_change && netif_msg_link(lp)) {
+ phy_print_status(phydev);
+#ifdef DEBUG
+ printk(KERN_DEBUG
+ "%s: MII BMCR %04x BMSR %04x LPA %04x\n",
+ dev->name,
+ phy_read(phydev, MII_BMCR),
+ phy_read(phydev, MII_BMSR),
+ phy_read(phydev, MII_LPA));
+#endif
+ }
+}
+
+static int tc_mii_probe(struct net_device *dev)
+{
+ struct tc35815_local *lp = netdev_priv(dev);
+ struct phy_device *phydev = NULL;
+ int phy_addr;
+
+ /* find the first phy */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+ if (lp->mii_bus.phy_map[phy_addr]) {
+ phydev = lp->mii_bus.phy_map[phy_addr];
+ break;
+ }
+ }
+
+ if (!phydev) {
+ printk(KERN_ERR "%s: no PHY found\n", dev->name);
+ return -ENODEV;
+ }
+
+ /* attach the mac to the phy */
+ phydev = phy_connect(dev, phydev->dev.bus_id,
+ &tc_handle_link_change, 0,
+ lp->boardtype == TC35815_TX4939 ?
+ PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII);
+ if (IS_ERR(phydev)) {
+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+ return PTR_ERR(phydev);
+ }
+ printk(KERN_INFO "%s: attached PHY driver [%s] "
+ "(mii_bus:phy_addr=%s, id=%x)\n",
+ dev->name, phydev->drv->name, phydev->dev.bus_id,
+ phydev->phy_id);
+
+ /* mask with MAC supported features */
+ phydev->supported &= PHY_BASIC_FEATURES;
+ if (options.speed == 10)
+ phydev->supported &=
+ ~(SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full);
+ else if (options.speed == 100)
+ phydev->supported &=
+ ~(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
+ if (options.duplex == 1)
+ phydev->supported &=
+ ~(SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full);
+ else if (options.duplex == 2)
+ phydev->supported &=
+ ~(SUPPORTED_10baseT_Half | SUPPORTED_100baseT_Half);
+ phydev->advertising = phydev->supported;
+
+ lp->link = 0;
+ lp->speed = 0;
+ lp->duplex = -1;
+ lp->phy_dev = phydev;
+
+ return 0;
+}
+
+static int tc_mii_init(struct net_device *dev)
+{
+ struct tc35815_local *lp = netdev_priv(dev);
+ int err;
+ int i;
+
+ lp->mii_bus.name = "tc35815_mii_bus",
+ lp->mii_bus.read = tc_mdio_read,
+ lp->mii_bus.write = tc_mdio_write,
+ lp->mii_bus.id = lp->pci_dev->devfn,
+ lp->mii_bus.priv = dev,
+ lp->mii_bus.dev = &lp->pci_dev->dev;
+ lp->mii_bus.irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+ if (!lp->mii_bus.irq) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ lp->mii_bus.irq[i] = PHY_POLL;
+
+ err = mdiobus_register(&lp->mii_bus);
+ if (err)
+ goto err_out_free_mdio_irq;
+ err = tc_mii_probe(dev);
+ if (err)
+ goto err_out_unregister_bus;
+ return 0;
+
+err_out_unregister_bus:
+ mdiobus_unregister(&lp->mii_bus);
+err_out_free_mdio_irq:
+ kfree(lp->mii_bus.irq);
+err_out:
+ return err;
+}
#ifdef CONFIG_CPU_TX49XX
/*
@@ -669,8 +856,8 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev,
if (!printed_version++) {
printk(version);
dev_printk(KERN_DEBUG, &pdev->dev,
- "speed:%d duplex:%d doforce:%d\n",
- options.speed, options.duplex, options.doforce);
+ "speed:%d duplex:%d\n",
+ options.speed, options.duplex);
}
if (!pdev->irq) {
@@ -718,6 +905,7 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev,
dev->irq = pdev->irq;
dev->base_addr = (unsigned long) ioaddr;
+ INIT_WORK(&lp->restart_work, tc35815_restart_work);
spin_lock_init(&lp->lock);
lp->pci_dev = pdev;
lp->boardtype = ent->driver_data;
@@ -746,19 +934,14 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev,
print_mac(mac, dev->dev_addr),
dev->irq);
- setup_timer(&lp->timer, tc35815_timer, (unsigned long) dev);
- lp->mii.dev = dev;
- lp->mii.mdio_read = tc_mdio_read;
- lp->mii.mdio_write = tc_mdio_write;
- lp->mii.phy_id_mask = 0x1f;
- lp->mii.reg_num_mask = 0x1f;
- tc35815_find_phy(dev);
- lp->mii.phy_id = lp->phy_addr;
- lp->mii.full_duplex = 0;
- lp->mii.force_media = 0;
+ rc = tc_mii_init(dev);
+ if (rc)
+ goto err_out_unregister;
return 0;
+err_out_unregister:
+ unregister_netdev(dev);
err_out:
free_netdev (dev);
return rc;
@@ -768,7 +951,11 @@ err_out:
static void __devexit tc35815_remove_one (struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata (pdev);
+ struct tc35815_local *lp = netdev_priv(dev);
+ phy_disconnect(lp->phy_dev);
+ mdiobus_unregister(&lp->mii_bus);
+ kfree(lp->mii_bus.irq);
unregister_netdev (dev);
free_netdev (dev);
@@ -1098,20 +1285,15 @@ static int tc35815_tx_full(struct net_device *dev)
static void tc35815_restart(struct net_device *dev)
{
struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- int do_phy_reset = 1;
- del_timer(&lp->timer); /* Kill if running */
- if (lp->mii_id[0] == 0x0016 && (lp->mii_id[1] & 0xfc00) == 0xf800) {
+ if (lp->phy_dev && (lp->phy_dev->phy_id & 0xfffffc00) != 0x0016f800) {
/* Resetting PHY cause problem on some chip... (SEEQ 80221) */
- do_phy_reset = 0;
- }
- if (do_phy_reset) {
int timeout;
- tc_mdio_write(dev, pid, MII_BMCR, BMCR_RESET);
+
+ phy_write(lp->phy_dev, MII_BMCR, BMCR_RESET);
timeout = 100;
while (--timeout) {
- if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_RESET))
+ if (!(phy_read(lp->phy_dev, MII_BMCR) & BMCR_RESET))
break;
udelay(1);
}
@@ -1119,41 +1301,49 @@ static void tc35815_restart(struct net_device *dev)
printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name);
}
+ spin_lock_irq(&lp->lock);
tc35815_chip_reset(dev);
tc35815_clear_queues(dev);
tc35815_chip_init(dev);
/* Reconfigure CAM again since tc35815_chip_init() initialize it. */
tc35815_set_multicast_list(dev);
+ spin_unlock_irq(&lp->lock);
+
+ netif_wake_queue(dev);
}
-static void tc35815_tx_timeout(struct net_device *dev)
+static void tc35815_restart_work(struct work_struct *work)
+{
+ struct tc35815_local *lp =
+ container_of(work, struct tc35815_local, restart_work);
+ struct net_device *dev = lp->dev;
+
+ tc35815_restart(dev);
+}
+
+static void tc35815_schedule_restart(struct net_device *dev)
{
struct tc35815_local *lp = netdev_priv(dev);
struct tc35815_regs __iomem *tr =
(struct tc35815_regs __iomem *)dev->base_addr;
+ /* disable interrupts */
+ tc_writel(0, &tr->Int_En);
+ tc_writel(tc_readl(&tr->DMA_Ctl) | DMA_IntMask, &tr->DMA_Ctl);
+ schedule_work(&lp->restart_work);
+}
+
+static void tc35815_tx_timeout(struct net_device *dev)
+{
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+
printk(KERN_WARNING "%s: transmit timed out, status %#x\n",
dev->name, tc_readl(&tr->Tx_Stat));
/* Try to restart the adaptor. */
- spin_lock_irq(&lp->lock);
- tc35815_restart(dev);
- spin_unlock_irq(&lp->lock);
-
+ tc35815_schedule_restart(dev);
dev->stats.tx_errors++;
-
- /* If we have space available to accept new transmit
- * requests, wake up the queueing layer. This would
- * be the case if the chipset_init() call above just
- * flushes out the tx queue and empties it.
- *
- * If instead, the tx queue is retained then the
- * netif_wake_queue() call should be placed in the
- * TX completion interrupt handler of the driver instead
- * of here.
- */
- if (!tc35815_tx_full(dev))
- netif_wake_queue(dev);
}
/*
@@ -1177,7 +1367,6 @@ tc35815_open(struct net_device *dev)
return -EAGAIN;
}
- del_timer(&lp->timer); /* Kill if running */
tc35815_chip_reset(dev);
if (tc35815_init_queues(dev) != 0) {
@@ -1194,6 +1383,9 @@ tc35815_open(struct net_device *dev)
tc35815_chip_init(dev);
spin_unlock_irq(&lp->lock);
+ /* schedule a link state check */
+ phy_start(lp->phy_dev);
+
/* We are now ready to accept transmit requeusts from
* the queueing layer of the networking.
*/
@@ -1314,7 +1506,7 @@ static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status)
panic("%s: Too many fatal errors.", dev->name);
printk(KERN_WARNING "%s: Resetting ...\n", dev->name);
/* Try to restart the adaptor. */
- tc35815_restart(dev);
+ tc35815_schedule_restart(dev);
}
#ifdef TC35815_NAPI
@@ -1739,8 +1931,9 @@ tc35815_check_tx_stat(struct net_device *dev, int status)
status &= ~Tx_NCarr;
#ifdef WORKAROUND_LOSTCAR
/* WORKAROUND: ignore LostCrS in full duplex operation */
- if ((lp->timer_state != asleep && lp->timer_state != lcheck)
- || lp->fullduplex)
+ if (!(lp->phy_dev->state == PHY_RUNNING ||
+ lp->phy_dev->state == PHY_CHANGELINK) ||
+ lp->duplex == DUPLEX_FULL)
status &= ~Tx_NCarr;
#endif
#endif
@@ -1905,10 +2098,11 @@ tc35815_close(struct net_device *dev)
#ifdef TC35815_NAPI
napi_disable(&lp->napi);
#endif
+ if (lp->phy_dev)
+ phy_stop(lp->phy_dev);
+ cancel_work_sync(&lp->restart_work);
/* Flush the Tx and disable Rx here. */
-
- del_timer(&lp->timer); /* Kill if running */
tc35815_chip_reset(dev);
free_irq(dev->irq, dev);
@@ -1993,8 +2187,8 @@ tc35815_set_multicast_list(struct net_device *dev)
/* With some (all?) 100MHalf HUB, controller will hang
* if we enabled promiscuous mode before linkup... */
struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- if (!(tc_mdio_read(dev, pid, MII_BMSR) & BMSR_LSTATUS))
+
+ if (!lp->link)
return;
#endif
/* Enable promiscuous mode */
@@ -2041,60 +2235,19 @@ static void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *
static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tc35815_local *lp = netdev_priv(dev);
- spin_lock_irq(&lp->lock);
- mii_ethtool_gset(&lp->mii, cmd);
- spin_unlock_irq(&lp->lock);
- return 0;
-}
-
-static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int rc;
-#if 1 /* use our negotiation method... */
- /* Verify the settings we care about. */
- if (cmd->autoneg != AUTONEG_ENABLE &&
- cmd->autoneg != AUTONEG_DISABLE)
- return -EINVAL;
- if (cmd->autoneg == AUTONEG_DISABLE &&
- ((cmd->speed != SPEED_100 &&
- cmd->speed != SPEED_10) ||
- (cmd->duplex != DUPLEX_HALF &&
- cmd->duplex != DUPLEX_FULL)))
- return -EINVAL;
- /* Ok, do it to it. */
- spin_lock_irq(&lp->lock);
- del_timer(&lp->timer);
- tc35815_start_auto_negotiation(dev, cmd);
- spin_unlock_irq(&lp->lock);
- rc = 0;
-#else
- spin_lock_irq(&lp->lock);
- rc = mii_ethtool_sset(&lp->mii, cmd);
- spin_unlock_irq(&lp->lock);
-#endif
- return rc;
+ if (!lp->phy_dev)
+ return -ENODEV;
+ return phy_ethtool_gset(lp->phy_dev, cmd);
}
-static int tc35815_nway_reset(struct net_device *dev)
+static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tc35815_local *lp = netdev_priv(dev);
- int rc;
- spin_lock_irq(&lp->lock);
- rc = mii_nway_restart(&lp->mii);
- spin_unlock_irq(&lp->lock);
- return rc;
-}
-static u32 tc35815_get_link(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int rc;
- spin_lock_irq(&lp->lock);
- rc = mii_link_ok(&lp->mii);
- spin_unlock_irq(&lp->lock);
- return rc;
+ if (!lp->phy_dev)
+ return -ENODEV;
+ return phy_ethtool_sset(lp->phy_dev, cmd);
}
static u32 tc35815_get_msglevel(struct net_device *dev)
@@ -2148,8 +2301,7 @@ static const struct ethtool_ops tc35815_ethtool_ops = {
.get_drvinfo = tc35815_get_drvinfo,
.get_settings = tc35815_get_settings,
.set_settings = tc35815_set_settings,
- .nway_reset = tc35815_nway_reset,
- .get_link = tc35815_get_link,
+ .get_link = ethtool_op_get_link,
.get_msglevel = tc35815_get_msglevel,
.set_msglevel = tc35815_set_msglevel,
.get_strings = tc35815_get_strings,
@@ -2160,610 +2312,12 @@ static const struct ethtool_ops tc35815_ethtool_ops = {
static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct tc35815_local *lp = netdev_priv(dev);
- int rc;
if (!netif_running(dev))
return -EINVAL;
-
- spin_lock_irq(&lp->lock);
- rc = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL);
- spin_unlock_irq(&lp->lock);
-
- return rc;
-}
-
-static int tc_mdio_read(struct net_device *dev, int phy_id, int location)
-{
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- u32 data;
- tc_writel(MD_CA_Busy | (phy_id << 5) | location, &tr->MD_CA);
- while (tc_readl(&tr->MD_CA) & MD_CA_Busy)
- ;
- data = tc_readl(&tr->MD_Data);
- return data & 0xffff;
-}
-
-static void tc_mdio_write(struct net_device *dev, int phy_id, int location,
- int val)
-{
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- tc_writel(val, &tr->MD_Data);
- tc_writel(MD_CA_Busy | MD_CA_Wr | (phy_id << 5) | location, &tr->MD_CA);
- while (tc_readl(&tr->MD_CA) & MD_CA_Busy)
- ;
-}
-
-/* Auto negotiation. The scheme is very simple. We have a timer routine
- * that keeps watching the auto negotiation process as it progresses.
- * The DP83840 is first told to start doing it's thing, we set up the time
- * and place the timer state machine in it's initial state.
- *
- * Here the timer peeks at the DP83840 status registers at each click to see
- * if the auto negotiation has completed, we assume here that the DP83840 PHY
- * will time out at some point and just tell us what (didn't) happen. For
- * complete coverage we only allow so many of the ticks at this level to run,
- * when this has expired we print a warning message and try another strategy.
- * This "other" strategy is to force the interface into various speed/duplex
- * configurations and we stop when we see a link-up condition before the
- * maximum number of "peek" ticks have occurred.
- *
- * Once a valid link status has been detected we configure the BigMAC and
- * the rest of the Happy Meal to speak the most efficient protocol we could
- * get a clean link for. The priority for link configurations, highest first
- * is:
- * 100 Base-T Full Duplex
- * 100 Base-T Half Duplex
- * 10 Base-T Full Duplex
- * 10 Base-T Half Duplex
- *
- * We start a new timer now, after a successful auto negotiation status has
- * been detected. This timer just waits for the link-up bit to get set in
- * the BMCR of the DP83840. When this occurs we print a kernel log message
- * describing the link type in use and the fact that it is up.
- *
- * If a fatal error of some sort is signalled and detected in the interrupt
- * service routine, and the chip is reset, or the link is ifconfig'd down
- * and then back up, this entire process repeats itself all over again.
- */
-/* Note: Above comments are come from sunhme driver. */
-
-static int tc35815_try_next_permutation(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short bmcr;
-
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
-
- /* Downgrade from full to half duplex. Only possible via ethtool. */
- if (bmcr & BMCR_FULLDPLX) {
- bmcr &= ~BMCR_FULLDPLX;
- printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr);
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
- return 0;
- }
-
- /* Downgrade from 100 to 10. */
- if (bmcr & BMCR_SPEED100) {
- bmcr &= ~BMCR_SPEED100;
- printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr);
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
- return 0;
- }
-
- /* We've tried everything. */
- return -1;
-}
-
-static void
-tc35815_display_link_mode(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short lpa, bmcr;
- char *speed = "", *duplex = "";
-
- lpa = tc_mdio_read(dev, pid, MII_LPA);
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL)))
- speed = "100Mb/s";
- else
- speed = "10Mb/s";
- if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL)))
- duplex = "Full Duplex";
- else
- duplex = "Half Duplex";
-
- if (netif_msg_link(lp))
- printk(KERN_INFO "%s: Link is up at %s, %s.\n",
- dev->name, speed, duplex);
- printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n",
- dev->name,
- bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa);
-}
-
-static void tc35815_display_forced_link_mode(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short bmcr;
- char *speed = "", *duplex = "";
-
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (bmcr & BMCR_SPEED100)
- speed = "100Mb/s";
- else
- speed = "10Mb/s";
- if (bmcr & BMCR_FULLDPLX)
- duplex = "Full Duplex.\n";
- else
- duplex = "Half Duplex.\n";
-
- if (netif_msg_link(lp))
- printk(KERN_INFO "%s: Link has been forced up at %s, %s",
- dev->name, speed, duplex);
-}
-
-static void tc35815_set_link_modes(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- int pid = lp->phy_addr;
- unsigned short bmcr, lpa;
- int speed;
-
- if (lp->timer_state == arbwait) {
- lpa = tc_mdio_read(dev, pid, MII_LPA);
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n",
- dev->name,
- bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa);
- if (!(lpa & (LPA_10HALF | LPA_10FULL |
- LPA_100HALF | LPA_100FULL))) {
- /* fall back to 10HALF */
- printk(KERN_INFO "%s: bad ability %04x - falling back to 10HD.\n",
- dev->name, lpa);
- lpa = LPA_10HALF;
- }
- if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL)))
- lp->fullduplex = 1;
- else
- lp->fullduplex = 0;
- if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL)))
- speed = 100;
- else
- speed = 10;
- } else {
- /* Forcing a link mode. */
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (bmcr & BMCR_FULLDPLX)
- lp->fullduplex = 1;
- else
- lp->fullduplex = 0;
- if (bmcr & BMCR_SPEED100)
- speed = 100;
- else
- speed = 10;
- }
-
- tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_HaltReq, &tr->MAC_Ctl);
- if (lp->fullduplex) {
- tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl);
- } else {
- tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_FullDup, &tr->MAC_Ctl);
- }
- tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_HaltReq, &tr->MAC_Ctl);
-
- /* TX4939 PCFG.SPEEDn bit will be changed on NETDEV_CHANGE event. */
-
-#ifndef NO_CHECK_CARRIER
- /* TX4939 does not have EnLCarr */
- if (lp->boardtype != TC35815_TX4939) {
-#ifdef WORKAROUND_LOSTCAR
- /* WORKAROUND: enable LostCrS only if half duplex operation */
- if (!lp->fullduplex && lp->boardtype != TC35815_TX4939)
- tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, &tr->Tx_Ctl);
-#endif
- }
-#endif
- lp->mii.full_duplex = lp->fullduplex;
-}
-
-static void tc35815_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short bmsr, bmcr, lpa;
- int restart_timer = 0;
-
- spin_lock_irq(&lp->lock);
-
- lp->timer_ticks++;
- switch (lp->timer_state) {
- case arbwait:
- /*
- * Only allow for 5 ticks, thats 10 seconds and much too
- * long to wait for arbitration to complete.
- */
- /* TC35815 need more times... */
- if (lp->timer_ticks >= 10) {
- /* Enter force mode. */
- if (!options.doforce) {
- printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful,"
- " cable probblem?\n", dev->name);
- /* Try to restart the adaptor. */
- tc35815_restart(dev);
- goto out;
- }
- printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful,"
- " trying force link mode\n", dev->name);
- printk(KERN_DEBUG "%s: BMCR %x BMSR %x\n", dev->name,
- tc_mdio_read(dev, pid, MII_BMCR),
- tc_mdio_read(dev, pid, MII_BMSR));
- bmcr = BMCR_SPEED100;
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
-
- /*
- * OK, seems we need do disable the transceiver
- * for the first tick to make sure we get an
- * accurate link state at the second tick.
- */
-
- lp->timer_state = ltrywait;
- lp->timer_ticks = 0;
- restart_timer = 1;
- } else {
- /* Anything interesting happen? */
- bmsr = tc_mdio_read(dev, pid, MII_BMSR);
- if (bmsr & BMSR_ANEGCOMPLETE) {
- /* Just what we've been waiting for... */
- tc35815_set_link_modes(dev);
-
- /*
- * Success, at least so far, advance our state
- * engine.
- */
- lp->timer_state = lupwait;
- restart_timer = 1;
- } else {
- restart_timer = 1;
- }
- }
- break;
-
- case lupwait:
- /*
- * Auto negotiation was successful and we are awaiting a
- * link up status. I have decided to let this timer run
- * forever until some sort of error is signalled, reporting
- * a message to the user at 10 second intervals.
- */
- bmsr = tc_mdio_read(dev, pid, MII_BMSR);
- if (bmsr & BMSR_LSTATUS) {
- /*
- * Wheee, it's up, display the link mode in use and put
- * the timer to sleep.
- */
- tc35815_display_link_mode(dev);
- netif_carrier_on(dev);
-#ifdef WORKAROUND_100HALF_PROMISC
- /* delayed promiscuous enabling */
- if (dev->flags & IFF_PROMISC)
- tc35815_set_multicast_list(dev);
-#endif
-#if 1
- lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA);
- lp->timer_state = lcheck;
- restart_timer = 1;
-#else
- lp->timer_state = asleep;
- restart_timer = 0;
-#endif
- } else {
- if (lp->timer_ticks >= 10) {
- printk(KERN_NOTICE "%s: Auto negotiation successful, link still "
- "not completely up.\n", dev->name);
- lp->timer_ticks = 0;
- restart_timer = 1;
- } else {
- restart_timer = 1;
- }
- }
- break;
-
- case ltrywait:
- /*
- * Making the timeout here too long can make it take
- * annoyingly long to attempt all of the link mode
- * permutations, but then again this is essentially
- * error recovery code for the most part.
- */
- bmsr = tc_mdio_read(dev, pid, MII_BMSR);
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (lp->timer_ticks == 1) {
- /*
- * Re-enable transceiver, we'll re-enable the
- * transceiver next tick, then check link state
- * on the following tick.
- */
- restart_timer = 1;
- break;
- }
- if (lp->timer_ticks == 2) {
- restart_timer = 1;
- break;
- }
- if (bmsr & BMSR_LSTATUS) {
- /* Force mode selection success. */
- tc35815_display_forced_link_mode(dev);
- netif_carrier_on(dev);
- tc35815_set_link_modes(dev);
-#ifdef WORKAROUND_100HALF_PROMISC
- /* delayed promiscuous enabling */
- if (dev->flags & IFF_PROMISC)
- tc35815_set_multicast_list(dev);
-#endif
-#if 1
- lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA);
- lp->timer_state = lcheck;
- restart_timer = 1;
-#else
- lp->timer_state = asleep;
- restart_timer = 0;
-#endif
- } else {
- if (lp->timer_ticks >= 4) { /* 6 seconds or so... */
- int ret;
-
- ret = tc35815_try_next_permutation(dev);
- if (ret == -1) {
- /*
- * Aieee, tried them all, reset the
- * chip and try all over again.
- */
- printk(KERN_NOTICE "%s: Link down, "
- "cable problem?\n",
- dev->name);
-
- /* Try to restart the adaptor. */
- tc35815_restart(dev);
- goto out;
- }
- lp->timer_ticks = 0;
- restart_timer = 1;
- } else {
- restart_timer = 1;
- }
- }
- break;
-
- case lcheck:
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- lpa = tc_mdio_read(dev, pid, MII_LPA);
- if (bmcr & (BMCR_PDOWN | BMCR_ISOLATE | BMCR_RESET)) {
- printk(KERN_ERR "%s: PHY down? (BMCR %x)\n", dev->name,
- bmcr);
- } else if ((lp->saved_lpa ^ lpa) &
- (LPA_100FULL|LPA_100HALF|LPA_10FULL|LPA_10HALF)) {
- printk(KERN_NOTICE "%s: link status changed"
- " (BMCR %x LPA %x->%x)\n", dev->name,
- bmcr, lp->saved_lpa, lpa);
- } else {
- /* go on */
- restart_timer = 1;
- break;
- }
- /* Try to restart the adaptor. */
- tc35815_restart(dev);
- goto out;
-
- case asleep:
- default:
- /* Can't happens.... */
- printk(KERN_ERR "%s: Aieee, link timer is asleep but we got "
- "one anyways!\n", dev->name);
- restart_timer = 0;
- lp->timer_ticks = 0;
- lp->timer_state = asleep; /* foo on you */
- break;
- }
-
- if (restart_timer) {
- lp->timer.expires = jiffies + msecs_to_jiffies(1200);
- add_timer(&lp->timer);
- }
-out:
- spin_unlock_irq(&lp->lock);
-}
-
-static void tc35815_start_auto_negotiation(struct net_device *dev,
- struct ethtool_cmd *ep)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short bmsr, bmcr, advertize;
- int timeout;
-
- netif_carrier_off(dev);
- bmsr = tc_mdio_read(dev, pid, MII_BMSR);
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- advertize = tc_mdio_read(dev, pid, MII_ADVERTISE);
-
- if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) {
- if (options.speed || options.duplex) {
- /* Advertise only specified configuration. */
- advertize &= ~(ADVERTISE_10HALF |
- ADVERTISE_10FULL |
- ADVERTISE_100HALF |
- ADVERTISE_100FULL);
- if (options.speed != 10) {
- if (options.duplex != 1)
- advertize |= ADVERTISE_100FULL;
- if (options.duplex != 2)
- advertize |= ADVERTISE_100HALF;
- }
- if (options.speed != 100) {
- if (options.duplex != 1)
- advertize |= ADVERTISE_10FULL;
- if (options.duplex != 2)
- advertize |= ADVERTISE_10HALF;
- }
- if (options.speed == 100)
- bmcr |= BMCR_SPEED100;
- else if (options.speed == 10)
- bmcr &= ~BMCR_SPEED100;
- if (options.duplex == 2)
- bmcr |= BMCR_FULLDPLX;
- else if (options.duplex == 1)
- bmcr &= ~BMCR_FULLDPLX;
- } else {
- /* Advertise everything we can support. */
- if (bmsr & BMSR_10HALF)
- advertize |= ADVERTISE_10HALF;
- else
- advertize &= ~ADVERTISE_10HALF;
- if (bmsr & BMSR_10FULL)
- advertize |= ADVERTISE_10FULL;
- else
- advertize &= ~ADVERTISE_10FULL;
- if (bmsr & BMSR_100HALF)
- advertize |= ADVERTISE_100HALF;
- else
- advertize &= ~ADVERTISE_100HALF;
- if (bmsr & BMSR_100FULL)
- advertize |= ADVERTISE_100FULL;
- else
- advertize &= ~ADVERTISE_100FULL;
- }
-
- tc_mdio_write(dev, pid, MII_ADVERTISE, advertize);
-
- /* Enable Auto-Negotiation, this is usually on already... */
- bmcr |= BMCR_ANENABLE;
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
-
- /* Restart it to make sure it is going. */
- bmcr |= BMCR_ANRESTART;
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
- printk(KERN_DEBUG "%s: ADVERTISE %x BMCR %x\n", dev->name, advertize, bmcr);
-
- /* BMCR_ANRESTART self clears when the process has begun. */
- timeout = 64; /* More than enough. */
- while (--timeout) {
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (!(bmcr & BMCR_ANRESTART))
- break; /* got it. */
- udelay(10);
- }
- if (!timeout) {
- printk(KERN_ERR "%s: TC35815 would not start auto "
- "negotiation BMCR=0x%04x\n",
- dev->name, bmcr);
- printk(KERN_NOTICE "%s: Performing force link "
- "detection.\n", dev->name);
- goto force_link;
- } else {
- printk(KERN_DEBUG "%s: auto negotiation started.\n", dev->name);
- lp->timer_state = arbwait;
- }
- } else {
-force_link:
- /* Force the link up, trying first a particular mode.
- * Either we are here at the request of ethtool or
- * because the Happy Meal would not start to autoneg.
- */
-
- /* Disable auto-negotiation in BMCR, enable the duplex and
- * speed setting, init the timer state machine, and fire it off.
- */
- if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) {
- bmcr = BMCR_SPEED100;
- } else {
- if (ep->speed == SPEED_100)
- bmcr = BMCR_SPEED100;
- else
- bmcr = 0;
- if (ep->duplex == DUPLEX_FULL)
- bmcr |= BMCR_FULLDPLX;
- }
- tc_mdio_write(dev, pid, MII_BMCR, bmcr);
-
- /* OK, seems we need do disable the transceiver for the first
- * tick to make sure we get an accurate link state at the
- * second tick.
- */
- lp->timer_state = ltrywait;
- }
-
- del_timer(&lp->timer);
- lp->timer_ticks = 0;
- lp->timer.expires = jiffies + msecs_to_jiffies(1200);
- add_timer(&lp->timer);
-}
-
-static void tc35815_find_phy(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short id0;
-
- /* find MII phy */
- for (pid = 31; pid >= 0; pid--) {
- id0 = tc_mdio_read(dev, pid, MII_BMSR);
- if (id0 != 0xffff && id0 != 0x0000 &&
- (id0 & BMSR_RESV) != (0xffff & BMSR_RESV) /* paranoia? */
- ) {
- lp->phy_addr = pid;
- break;
- }
- }
- if (pid < 0) {
- printk(KERN_ERR "%s: No MII Phy found.\n",
- dev->name);
- lp->phy_addr = pid = 0;
- }
-
- lp->mii_id[0] = tc_mdio_read(dev, pid, MII_PHYSID1);
- lp->mii_id[1] = tc_mdio_read(dev, pid, MII_PHYSID2);
- if (netif_msg_hw(lp))
- printk(KERN_INFO "%s: PHY(%02x) ID %04x %04x\n", dev->name,
- pid, lp->mii_id[0], lp->mii_id[1]);
-}
-
-static void tc35815_phy_chip_init(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int pid = lp->phy_addr;
- unsigned short bmcr;
- struct ethtool_cmd ecmd, *ep;
-
- /* dis-isolate if needed. */
- bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- if (bmcr & BMCR_ISOLATE) {
- int count = 32;
- printk(KERN_DEBUG "%s: unisolating...", dev->name);
- tc_mdio_write(dev, pid, MII_BMCR, bmcr & ~BMCR_ISOLATE);
- while (--count) {
- if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_ISOLATE))
- break;
- udelay(20);
- }
- printk(" %s.\n", count ? "done" : "failed");
- }
-
- if (options.speed && options.duplex) {
- ecmd.autoneg = AUTONEG_DISABLE;
- ecmd.speed = options.speed == 10 ? SPEED_10 : SPEED_100;
- ecmd.duplex = options.duplex == 1 ? DUPLEX_HALF : DUPLEX_FULL;
- ep = &ecmd;
- } else {
- ep = NULL;
- }
- tc35815_start_auto_negotiation(dev, ep);
+ if (!lp->phy_dev)
+ return -ENODEV;
+ return phy_mii_ioctl(lp->phy_dev, if_mii(rq), cmd);
}
static void tc35815_chip_reset(struct net_device *dev)
@@ -2815,8 +2369,6 @@ static void tc35815_chip_init(struct net_device *dev)
(struct tc35815_regs __iomem *)dev->base_addr;
unsigned long txctl = TX_CTL_CMD;
- tc35815_phy_chip_init(dev);
-
/* load station address to CAM */
tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr);
@@ -2857,8 +2409,10 @@ static void tc35815_chip_init(struct net_device *dev)
txctl &= ~Tx_EnLCarr;
#ifdef WORKAROUND_LOSTCAR
/* WORKAROUND: ignore LostCrS in full duplex operation */
- if ((lp->timer_state != asleep && lp->timer_state != lcheck) ||
- lp->fullduplex)
+ if (!lp->phy_dev ||
+ !(lp->phy_dev->state == PHY_RUNNING ||
+ lp->phy_dev->state == PHY_CHANGELINK) ||
+ lp->duplex == DUPLEX_FULL)
txctl &= ~Tx_EnLCarr;
#endif
#endif /* !NO_CHECK_CARRIER */
@@ -2879,8 +2433,9 @@ static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state)
if (!netif_running(dev))
return 0;
netif_device_detach(dev);
+ if (lp->phy_dev)
+ phy_stop(lp->phy_dev);
spin_lock_irqsave(&lp->lock, flags);
- del_timer(&lp->timer); /* Kill if running */
tc35815_chip_reset(dev);
spin_unlock_irqrestore(&lp->lock, flags);
pci_set_power_state(pdev, PCI_D3hot);
@@ -2891,15 +2446,14 @@ static int tc35815_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct tc35815_local *lp = netdev_priv(dev);
- unsigned long flags;
pci_restore_state(pdev);
if (!netif_running(dev))
return 0;
pci_set_power_state(pdev, PCI_D0);
- spin_lock_irqsave(&lp->lock, flags);
tc35815_restart(dev);
- spin_unlock_irqrestore(&lp->lock, flags);
+ if (lp->phy_dev)
+ phy_start(lp->phy_dev);
netif_device_attach(dev);
return 0;
}
@@ -2920,8 +2474,6 @@ module_param_named(speed, options.speed, int, 0);
MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps");
module_param_named(duplex, options.duplex, int, 0);
MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full");
-module_param_named(doforce, options.doforce, int, 0);
-MODULE_PARM_DESC(doforce, "try force link mode if auto-negotiation failed");
static int __init tc35815_init_module(void)
{
--
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