config GIANFAR
tristate "Gianfar Ethernet"
depends on 85xx || 83xx
+ select PHYLIB
+ select PHYCONTROL
help
This driver supports the Gigabit TSEC on the MPC85xx
family of chips, and the FEC on the 8540
obj-$(CONFIG_BONDING) += bonding/
obj-$(CONFIG_GIANFAR) += gianfar_driver.o
-gianfar_driver-objs := gianfar.o gianfar_ethtool.o gianfar_phy.o
+gianfar_driver-objs := gianfar.o gianfar_ethtool.o gianfar_mii.o
#
# link order important here
* define the configuration needed by the board are defined in a
* board structure in arch/ppc/platforms (though I do not
* discount the possibility that other architectures could one
- * day be supported. One assumption the driver currently makes
- * is that the PHY is configured in such a way to advertise all
- * capabilities. This is a sensible default, and on certain
- * PHYs, changing this default encounters substantial errata
- * issues. Future versions may remove this requirement, but for
- * now, it is best for the firmware to ensure this is the case.
+ * day be supported.
*
* The Gianfar Ethernet Controller uses a ring of buffer
* descriptors. The beginning is indicated by a register
* corresponding bit in the IMASK register is also set (if
* interrupt coalescing is active, then the interrupt may not
* happen immediately, but will wait until either a set number
- * of frames or amount of time have passed.). In NAPI, the
+ * of frames or amount of time have passed). In NAPI, the
* interrupt handler will signal there is work to be done, and
* exit. Without NAPI, the packet(s) will be handled
* immediately. Both methods will start at the last known empty
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/errno.h>
+#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/version.h>
#include <linux/dma-mapping.h>
#include <linux/crc32.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
#include "gianfar.h"
-#include "gianfar_phy.h"
+#include "gianfar_mii.h"
#define TX_TIMEOUT (1*HZ)
#define SKB_ALLOC_TIMEOUT 1000000
#endif
const char gfar_driver_name[] = "Gianfar Ethernet";
-const char gfar_driver_version[] = "1.1";
+const char gfar_driver_version[] = "1.2";
-int startup_gfar(struct net_device *dev);
static int gfar_enet_open(struct net_device *dev);
static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev);
static void gfar_timeout(struct net_device *dev);
static int gfar_change_mtu(struct net_device *dev, int new_mtu);
static irqreturn_t gfar_error(int irq, void *dev_id, struct pt_regs *regs);
static irqreturn_t gfar_transmit(int irq, void *dev_id, struct pt_regs *regs);
-static irqreturn_t gfar_receive(int irq, void *dev_id, struct pt_regs *regs);
static irqreturn_t gfar_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-static irqreturn_t phy_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-static void gfar_phy_change(void *data);
-static void gfar_phy_timer(unsigned long data);
static void adjust_link(struct net_device *dev);
static void init_registers(struct net_device *dev);
static int init_phy(struct net_device *dev);
static int gfar_probe(struct device *device);
static int gfar_remove(struct device *device);
-void free_skb_resources(struct gfar_private *priv);
+static void free_skb_resources(struct gfar_private *priv);
static void gfar_set_multi(struct net_device *dev);
static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr);
#ifdef CONFIG_GFAR_NAPI
#endif
int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int length);
-static void gfar_phy_startup_timer(unsigned long data);
static void gfar_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp);
static void gfar_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
else
return 0;
}
+
+/* Set up the ethernet device structure, private data,
+ * and anything else we need before we start */
static int gfar_probe(struct device *device)
{
u32 tempval;
einfo = (struct gianfar_platform_data *) pdev->dev.platform_data;
- if (einfo == NULL) {
+ if (NULL == einfo) {
printk(KERN_ERR "gfar %d: Missing additional data!\n",
pdev->id);
/* Create an ethernet device instance */
dev = alloc_etherdev(sizeof (*priv));
- if (dev == NULL)
+ if (NULL == dev)
return -ENOMEM;
priv = netdev_priv(dev);
priv->regs = (struct gfar *)
ioremap(r->start, sizeof (struct gfar));
- if (priv->regs == NULL) {
+ if (NULL == priv->regs) {
err = -ENOMEM;
goto regs_fail;
}
- /* Set the PHY base address */
- priv->phyregs = (struct gfar *)
- ioremap(einfo->phy_reg_addr, sizeof (struct gfar));
-
- if (priv->phyregs == NULL) {
- err = -ENOMEM;
- goto phy_regs_fail;
- }
-
spin_lock_init(&priv->lock);
dev_set_drvdata(device, dev);
return 0;
register_fail:
- iounmap((void *) priv->phyregs);
-phy_regs_fail:
iounmap((void *) priv->regs);
regs_fail:
free_netdev(dev);
- return -ENOMEM;
+ return err;
}
static int gfar_remove(struct device *device)
dev_set_drvdata(device, NULL);
iounmap((void *) priv->regs);
- iounmap((void *) priv->phyregs);
free_netdev(dev);
return 0;
}
-/* Configure the PHY for dev.
- * returns 0 if success. -1 if failure
+/* Initializes driver's PHY state, and attaches to the PHY.
+ * Returns 0 on success.
*/
static int init_phy(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
- struct phy_info *curphy;
- unsigned int timeout = PHY_INIT_TIMEOUT;
- struct gfar *phyregs = priv->phyregs;
- struct gfar_mii_info *mii_info;
- int err;
+ uint gigabit_support =
+ priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
+ SUPPORTED_1000baseT_Full : 0;
+ struct phy_device *phydev;
priv->oldlink = 0;
priv->oldspeed = 0;
priv->oldduplex = -1;
- mii_info = kmalloc(sizeof(struct gfar_mii_info),
- GFP_KERNEL);
-
- if(NULL == mii_info) {
- if (netif_msg_ifup(priv))
- printk(KERN_ERR "%s: Could not allocate mii_info\n",
- dev->name);
- return -ENOMEM;
- }
-
- mii_info->speed = SPEED_1000;
- mii_info->duplex = DUPLEX_FULL;
- mii_info->pause = 0;
- mii_info->link = 1;
-
- mii_info->advertising = (ADVERTISED_10baseT_Half |
- ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half |
- ADVERTISED_100baseT_Full |
- ADVERTISED_1000baseT_Full);
- mii_info->autoneg = 1;
+ phydev = phy_connect(dev, priv->einfo->bus_id, &adjust_link, 0);
- spin_lock_init(&mii_info->mdio_lock);
-
- mii_info->mii_id = priv->einfo->phyid;
-
- mii_info->dev = dev;
-
- mii_info->mdio_read = &read_phy_reg;
- mii_info->mdio_write = &write_phy_reg;
-
- priv->mii_info = mii_info;
-
- /* Reset the management interface */
- gfar_write(&phyregs->miimcfg, MIIMCFG_RESET);
-
- /* Setup the MII Mgmt clock speed */
- gfar_write(&phyregs->miimcfg, MIIMCFG_INIT_VALUE);
-
- /* Wait until the bus is free */
- while ((gfar_read(&phyregs->miimind) & MIIMIND_BUSY) &&
- timeout--)
- cpu_relax();
-
- if(timeout <= 0) {
- printk(KERN_ERR "%s: The MII Bus is stuck!\n",
- dev->name);
- err = -1;
- goto bus_fail;
- }
-
- /* get info for this PHY */
- curphy = get_phy_info(priv->mii_info);
-
- if (curphy == NULL) {
- if (netif_msg_ifup(priv))
- printk(KERN_ERR "%s: No PHY found\n", dev->name);
- err = -1;
- goto no_phy;
+ if (IS_ERR(phydev)) {
+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+ return PTR_ERR(phydev);
}
- mii_info->phyinfo = curphy;
+ /* Remove any features not supported by the controller */
+ phydev->supported &= (GFAR_SUPPORTED | gigabit_support);
+ phydev->advertising = phydev->supported;
- /* Run the commands which initialize the PHY */
- if(curphy->init) {
- err = curphy->init(priv->mii_info);
-
- if (err)
- goto phy_init_fail;
- }
+ priv->phydev = phydev;
return 0;
-
-phy_init_fail:
-no_phy:
-bus_fail:
- kfree(mii_info);
-
- return err;
}
static void init_registers(struct net_device *dev)
struct gfar *regs = priv->regs;
unsigned long flags;
+ phy_stop(priv->phydev);
+
/* Lock it down */
spin_lock_irqsave(&priv->lock, flags);
- /* Tell the kernel the link is down */
- priv->mii_info->link = 0;
- adjust_link(dev);
-
gfar_halt(dev);
- if (priv->einfo->board_flags & FSL_GIANFAR_BRD_HAS_PHY_INTR) {
- /* Clear any pending interrupts */
- mii_clear_phy_interrupt(priv->mii_info);
-
- /* Disable PHY Interrupts */
- mii_configure_phy_interrupt(priv->mii_info,
- MII_INTERRUPT_DISABLED);
- }
-
spin_unlock_irqrestore(&priv->lock, flags);
/* Free the IRQs */
free_irq(priv->interruptTransmit, dev);
free_irq(priv->interruptReceive, dev);
} else {
- free_irq(priv->interruptTransmit, dev);
- }
-
- if (priv->einfo->board_flags & FSL_GIANFAR_BRD_HAS_PHY_INTR) {
- free_irq(priv->einfo->interruptPHY, dev);
- } else {
- del_timer_sync(&priv->phy_info_timer);
+ free_irq(priv->interruptTransmit, dev);
}
free_skb_resources(priv);
/* If there are any tx skbs or rx skbs still around, free them.
* Then free tx_skbuff and rx_skbuff */
-void free_skb_resources(struct gfar_private *priv)
+static void free_skb_resources(struct gfar_private *priv)
{
struct rxbd8 *rxbdp;
struct txbd8 *txbdp;
(struct sk_buff **) kmalloc(sizeof (struct sk_buff *) *
priv->tx_ring_size, GFP_KERNEL);
- if (priv->tx_skbuff == NULL) {
+ if (NULL == priv->tx_skbuff) {
if (netif_msg_ifup(priv))
printk(KERN_ERR "%s: Could not allocate tx_skbuff\n",
dev->name);
(struct sk_buff **) kmalloc(sizeof (struct sk_buff *) *
priv->rx_ring_size, GFP_KERNEL);
- if (priv->rx_skbuff == NULL) {
+ if (NULL == priv->rx_skbuff) {
if (netif_msg_ifup(priv))
printk(KERN_ERR "%s: Could not allocate rx_skbuff\n",
dev->name);
}
}
- /* Set up the PHY change work queue */
- INIT_WORK(&priv->tq, gfar_phy_change, dev);
-
- init_timer(&priv->phy_info_timer);
- priv->phy_info_timer.function = &gfar_phy_startup_timer;
- priv->phy_info_timer.data = (unsigned long) priv->mii_info;
- mod_timer(&priv->phy_info_timer, jiffies + HZ);
+ phy_start(priv->phydev);
/* Configure the coalescing support */
if (priv->txcoalescing)
priv->tx_bd_base,
gfar_read(®s->tbase0));
- if (priv->mii_info->phyinfo->close)
- priv->mii_info->phyinfo->close(priv->mii_info);
-
- kfree(priv->mii_info);
-
return err;
}
txbdp->status &= TXBD_WRAP;
/* Set up checksumming */
- if ((dev->features & NETIF_F_IP_CSUM)
+ if ((dev->features & NETIF_F_IP_CSUM)
&& (CHECKSUM_HW == skb->ip_summed)) {
fcb = gfar_add_fcb(skb, txbdp);
gfar_tx_checksum(skb, fcb);
struct gfar_private *priv = netdev_priv(dev);
stop_gfar(dev);
- /* Shutdown the PHY */
- if (priv->mii_info->phyinfo->close)
- priv->mii_info->phyinfo->close(priv->mii_info);
-
- kfree(priv->mii_info);
+ /* Disconnect from the PHY */
+ phy_disconnect(priv->phydev);
+ priv->phydev = NULL;
netif_stop_queue(dev);
while ((!skb) && timeout--)
skb = dev_alloc_skb(priv->rx_buffer_size + RXBUF_ALIGNMENT);
- if (skb == NULL)
+ if (NULL == skb)
return NULL;
/* We need the data buffer to be aligned properly. We will reserve
struct gfar_private *priv = netdev_priv(dev);
struct rxfcb *fcb = NULL;
- if (skb == NULL) {
+ if (NULL == skb) {
if (netif_msg_rx_err(priv))
printk(KERN_WARNING "%s: Missing skb!!.\n", dev->name);
priv->stats.rx_dropped++;
return IRQ_HANDLED;
}
-static irqreturn_t phy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = (struct net_device *) dev_id;
- struct gfar_private *priv = netdev_priv(dev);
-
- /* Clear the interrupt */
- mii_clear_phy_interrupt(priv->mii_info);
-
- /* Disable PHY interrupts */
- mii_configure_phy_interrupt(priv->mii_info,
- MII_INTERRUPT_DISABLED);
-
- /* Schedule the phy change */
- schedule_work(&priv->tq);
-
- return IRQ_HANDLED;
-}
-
-/* Scheduled by the phy_interrupt/timer to handle PHY changes */
-static void gfar_phy_change(void *data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct gfar_private *priv = netdev_priv(dev);
- int result = 0;
-
- /* Delay to give the PHY a chance to change the
- * register state */
- msleep(1);
-
- /* Update the link, speed, duplex */
- result = priv->mii_info->phyinfo->read_status(priv->mii_info);
-
- /* Adjust the known status as long as the link
- * isn't still coming up */
- if((0 == result) || (priv->mii_info->link == 0))
- adjust_link(dev);
-
- /* Reenable interrupts, if needed */
- if (priv->einfo->board_flags & FSL_GIANFAR_BRD_HAS_PHY_INTR)
- mii_configure_phy_interrupt(priv->mii_info,
- MII_INTERRUPT_ENABLED);
-}
-
-/* Called every so often on systems that don't interrupt
- * the core for PHY changes */
-static void gfar_phy_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct gfar_private *priv = netdev_priv(dev);
-
- schedule_work(&priv->tq);
-
- mod_timer(&priv->phy_info_timer, jiffies +
- GFAR_PHY_CHANGE_TIME * HZ);
-}
-
-/* Keep trying aneg for some time
- * If, after GFAR_AN_TIMEOUT seconds, it has not
- * finished, we switch to forced.
- * Either way, once the process has completed, we either
- * request the interrupt, or switch the timer over to
- * using gfar_phy_timer to check status */
-static void gfar_phy_startup_timer(unsigned long data)
-{
- int result;
- static int secondary = GFAR_AN_TIMEOUT;
- struct gfar_mii_info *mii_info = (struct gfar_mii_info *)data;
- struct gfar_private *priv = netdev_priv(mii_info->dev);
-
- /* Configure the Auto-negotiation */
- result = mii_info->phyinfo->config_aneg(mii_info);
-
- /* If autonegotiation failed to start, and
- * we haven't timed out, reset the timer, and return */
- if (result && secondary--) {
- mod_timer(&priv->phy_info_timer, jiffies + HZ);
- return;
- } else if (result) {
- /* Couldn't start autonegotiation.
- * Try switching to forced */
- mii_info->autoneg = 0;
- result = mii_info->phyinfo->config_aneg(mii_info);
-
- /* Forcing failed! Give up */
- if(result) {
- if (netif_msg_link(priv))
- printk(KERN_ERR "%s: Forcing failed!\n",
- mii_info->dev->name);
- return;
- }
- }
-
- /* Kill the timer so it can be restarted */
- del_timer_sync(&priv->phy_info_timer);
-
- /* Grab the PHY interrupt, if necessary/possible */
- if (priv->einfo->board_flags & FSL_GIANFAR_BRD_HAS_PHY_INTR) {
- if (request_irq(priv->einfo->interruptPHY,
- phy_interrupt,
- SA_SHIRQ,
- "phy_interrupt",
- mii_info->dev) < 0) {
- if (netif_msg_intr(priv))
- printk(KERN_ERR "%s: Can't get IRQ %d (PHY)\n",
- mii_info->dev->name,
- priv->einfo->interruptPHY);
- } else {
- mii_configure_phy_interrupt(priv->mii_info,
- MII_INTERRUPT_ENABLED);
- return;
- }
- }
-
- /* Start the timer again, this time in order to
- * handle a change in status */
- init_timer(&priv->phy_info_timer);
- priv->phy_info_timer.function = &gfar_phy_timer;
- priv->phy_info_timer.data = (unsigned long) mii_info->dev;
- mod_timer(&priv->phy_info_timer, jiffies +
- GFAR_PHY_CHANGE_TIME * HZ);
-}
-
/* Called every time the controller might need to be made
* aware of new link state. The PHY code conveys this
- * information through variables in the priv structure, and this
+ * information through variables in the phydev structure, and this
* function converts those variables into the appropriate
* register values, and can bring down the device if needed.
*/
{
struct gfar_private *priv = netdev_priv(dev);
struct gfar *regs = priv->regs;
- u32 tempval;
- struct gfar_mii_info *mii_info = priv->mii_info;
+ unsigned long flags;
+ struct phy_device *phydev = priv->phydev;
+ int new_state = 0;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (phydev->link) {
+ u32 tempval = gfar_read(®s->maccfg2);
- if (mii_info->link) {
/* Now we make sure that we can be in full duplex mode.
* If not, we operate in half-duplex mode. */
- if (mii_info->duplex != priv->oldduplex) {
- if (!(mii_info->duplex)) {
- tempval = gfar_read(®s->maccfg2);
+ if (phydev->duplex != priv->oldduplex) {
+ new_state = 1;
+ if (!(phydev->duplex))
tempval &= ~(MACCFG2_FULL_DUPLEX);
- gfar_write(®s->maccfg2, tempval);
-
- if (netif_msg_link(priv))
- printk(KERN_INFO "%s: Half Duplex\n",
- dev->name);
- } else {
- tempval = gfar_read(®s->maccfg2);
+ else
tempval |= MACCFG2_FULL_DUPLEX;
- gfar_write(®s->maccfg2, tempval);
- if (netif_msg_link(priv))
- printk(KERN_INFO "%s: Full Duplex\n",
- dev->name);
- }
-
- priv->oldduplex = mii_info->duplex;
+ priv->oldduplex = phydev->duplex;
}
- if (mii_info->speed != priv->oldspeed) {
- switch (mii_info->speed) {
+ if (phydev->speed != priv->oldspeed) {
+ new_state = 1;
+ switch (phydev->speed) {
case 1000:
- tempval = gfar_read(®s->maccfg2);
tempval =
((tempval & ~(MACCFG2_IF)) | MACCFG2_GMII);
- gfar_write(®s->maccfg2, tempval);
break;
case 100:
case 10:
- tempval = gfar_read(®s->maccfg2);
tempval =
((tempval & ~(MACCFG2_IF)) | MACCFG2_MII);
- gfar_write(®s->maccfg2, tempval);
break;
default:
if (netif_msg_link(priv))
printk(KERN_WARNING
- "%s: Ack! Speed (%d) is not 10/100/1000!\n",
- dev->name, mii_info->speed);
+ "%s: Ack! Speed (%d) is not 10/100/1000!\n",
+ dev->name, phydev->speed);
break;
}
- if (netif_msg_link(priv))
- printk(KERN_INFO "%s: Speed %dBT\n", dev->name,
- mii_info->speed);
-
- priv->oldspeed = mii_info->speed;
+ priv->oldspeed = phydev->speed;
}
+ gfar_write(®s->maccfg2, tempval);
+
if (!priv->oldlink) {
- if (netif_msg_link(priv))
- printk(KERN_INFO "%s: Link is up\n", dev->name);
+ new_state = 1;
priv->oldlink = 1;
- netif_carrier_on(dev);
netif_schedule(dev);
}
- } else {
- if (priv->oldlink) {
- if (netif_msg_link(priv))
- printk(KERN_INFO "%s: Link is down\n",
- dev->name);
- priv->oldlink = 0;
- priv->oldspeed = 0;
- priv->oldduplex = -1;
- netif_carrier_off(dev);
- }
+ } else if (priv->oldlink) {
+ new_state = 1;
+ priv->oldlink = 0;
+ priv->oldspeed = 0;
+ priv->oldduplex = -1;
}
-}
+ if (new_state && netif_msg_link(priv))
+ phy_print_status(phydev);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
/* Update the hash table based on the current list of multicast
* addresses we subscribe to. Also, change the promiscuity of
static int __init gfar_init(void)
{
- return driver_register(&gfar_driver);
+ int err = gfar_mdio_init();
+
+ if (err)
+ return err;
+
+ err = driver_register(&gfar_driver);
+
+ if (err)
+ gfar_mdio_exit();
+
+ return err;
}
static void __exit gfar_exit(void)
{
driver_unregister(&gfar_driver);
+ gfar_mdio_exit();
}
module_init(gfar_init);
*
* Still left to do:
* -Add support for module parameters
- * -Add support for ethtool -s
* -Add patch for ethtool phys id
*/
#ifndef __GIANFAR_H
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
-#include <linux/fsl_devices.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/workqueue.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
-#include "gianfar_phy.h"
+#include <linux/fsl_devices.h>
+#include "gianfar_mii.h"
/* The maximum number of packets to be handled in one call of gfar_poll */
#define GFAR_DEV_WEIGHT 64
#define PHY_INIT_TIMEOUT 100000
#define GFAR_PHY_CHANGE_TIME 2
-#define DEVICE_NAME "%s: Gianfar Ethernet Controller Version 1.1, "
+#define DEVICE_NAME "%s: Gianfar Ethernet Controller Version 1.2, "
#define DRV_NAME "gfar-enet"
extern const char gfar_driver_name[];
extern const char gfar_driver_version[];
u32 hafdup; /* 0x.50c - Half Duplex Register */
u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
u8 res18[12];
- u32 miimcfg; /* 0x.520 - MII Management Configuration Register */
- u32 miimcom; /* 0x.524 - MII Management Command Register */
- u32 miimadd; /* 0x.528 - MII Management Address Register */
- u32 miimcon; /* 0x.52c - MII Management Control Register */
- u32 miimstat; /* 0x.530 - MII Management Status Register */
- u32 miimind; /* 0x.534 - MII Management Indicator Register */
+ u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
u8 res19[4];
u32 ifstat; /* 0x.53c - Interface Status Register */
u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
struct gfar *regs; /* Pointer to the GFAR memory mapped Registers */
u32 *hash_regs[16];
int hash_width;
- struct gfar *phyregs;
- struct work_struct tq;
- struct timer_list phy_info_timer;
struct net_device_stats stats; /* linux network statistics */
struct gfar_extra_stats extra_stats;
spinlock_t lock;
unsigned int interruptError;
struct gianfar_platform_data *einfo;
- struct gfar_mii_info *mii_info;
+ struct phy_device *phydev;
+ struct mii_bus *mii_bus;
int oldspeed;
int oldduplex;
int oldlink;
extern struct ethtool_ops *gfar_op_array[];
+extern irqreturn_t gfar_receive(int irq, void *dev_id, struct pt_regs *regs);
+extern int startup_gfar(struct net_device *dev);
+extern void stop_gfar(struct net_device *dev);
+extern void gfar_halt(struct net_device *dev);
+extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
+ int enable, u32 regnum, u32 read);
+void gfar_setup_stashing(struct net_device *dev);
+
#endif /* __GIANFAR_H */
#include <asm/types.h>
#include <asm/uaccess.h>
#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
#include "gianfar.h"
#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0))
-extern int startup_gfar(struct net_device *dev);
-extern void stop_gfar(struct net_device *dev);
-extern void gfar_halt(struct net_device *dev);
extern void gfar_start(struct net_device *dev);
extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
+#define GFAR_MAX_COAL_USECS 0xffff
+#define GFAR_MAX_COAL_FRAMES 0xff
static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
u64 * buf);
static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
drvinfo->eedump_len = 0;
}
+
+static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct gfar_private *priv = netdev_priv(dev);
+ struct phy_device *phydev = priv->phydev;
+
+ if (NULL == phydev)
+ return -ENODEV;
+
+ return phy_ethtool_sset(phydev, cmd);
+}
+
+
/* Return the current settings in the ethtool_cmd structure */
static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct gfar_private *priv = netdev_priv(dev);
- uint gigabit_support =
- priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
- SUPPORTED_1000baseT_Full : 0;
- uint gigabit_advert =
- priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
- ADVERTISED_1000baseT_Full: 0;
-
- cmd->supported = (SUPPORTED_10baseT_Half
- | SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full
- | gigabit_support | SUPPORTED_Autoneg);
-
- /* For now, we always advertise everything */
- cmd->advertising = (ADVERTISED_10baseT_Half
- | ADVERTISED_100baseT_Half
- | ADVERTISED_100baseT_Full
- | gigabit_advert | ADVERTISED_Autoneg);
-
- cmd->speed = priv->mii_info->speed;
- cmd->duplex = priv->mii_info->duplex;
- cmd->port = PORT_MII;
- cmd->phy_address = priv->mii_info->mii_id;
- cmd->transceiver = XCVR_EXTERNAL;
- cmd->autoneg = AUTONEG_ENABLE;
+ struct phy_device *phydev = priv->phydev;
+
+ if (NULL == phydev)
+ return -ENODEV;
+
cmd->maxtxpkt = priv->txcount;
cmd->maxrxpkt = priv->rxcount;
- return 0;
+ return phy_ethtool_gset(phydev, cmd);
}
/* Return the length of the register structure */
unsigned int count;
/* The timer is different, depending on the interface speed */
- switch (priv->mii_info->speed) {
- case 1000:
+ switch (priv->phydev->speed) {
+ case SPEED_1000:
count = GFAR_GBIT_TIME;
break;
- case 100:
+ case SPEED_100:
count = GFAR_100_TIME;
break;
- case 10:
+ case SPEED_10:
default:
count = GFAR_10_TIME;
break;
unsigned int count;
/* The timer is different, depending on the interface speed */
- switch (priv->mii_info->speed) {
- case 1000:
+ switch (priv->phydev->speed) {
+ case SPEED_1000:
count = GFAR_GBIT_TIME;
break;
- case 100:
+ case SPEED_100:
count = GFAR_100_TIME;
break;
- case 10:
+ case SPEED_10:
default:
count = GFAR_10_TIME;
break;
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
return -EOPNOTSUPP;
+ if (NULL == priv->phydev)
+ return -ENODEV;
+
cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime);
cvals->rx_max_coalesced_frames = priv->rxcount;
else
priv->rxcoalescing = 1;
+ if (NULL == priv->phydev)
+ return -ENODEV;
+
+ /* Check the bounds of the values */
+ if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
+ pr_info("Coalescing is limited to %d microseconds\n",
+ GFAR_MAX_COAL_USECS);
+ return -EINVAL;
+ }
+
+ if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
+ pr_info("Coalescing is limited to %d frames\n",
+ GFAR_MAX_COAL_FRAMES);
+ return -EINVAL;
+ }
+
priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs);
priv->rxcount = cvals->rx_max_coalesced_frames;
else
priv->txcoalescing = 1;
+ /* Check the bounds of the values */
+ if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
+ pr_info("Coalescing is limited to %d microseconds\n",
+ GFAR_MAX_COAL_USECS);
+ return -EINVAL;
+ }
+
+ if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
+ pr_info("Coalescing is limited to %d frames\n",
+ GFAR_MAX_COAL_FRAMES);
+ return -EINVAL;
+ }
+
priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs);
priv->txcount = cvals->tx_max_coalesced_frames;
struct ethtool_ops gfar_ethtool_ops = {
.get_settings = gfar_gsettings,
+ .set_settings = gfar_ssettings,
.get_drvinfo = gfar_gdrvinfo,
.get_regs_len = gfar_reglen,
.get_regs = gfar_get_regs,
--- /dev/null
+/*
+ * drivers/net/gianfar_mii.c
+ *
+ * Gianfar Ethernet Driver -- MIIM bus implementation
+ * Provides Bus interface for MIIM regs
+ *
+ * Author: Andy Fleming
+ * Maintainer: Kumar Gala (kumar.gala@freescale.com)
+ *
+ * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <asm/ocp.h>
+#include <linux/crc32.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "gianfar.h"
+#include "gianfar_mii.h"
+
+/* Write value to the PHY at mii_id at register regnum,
+ * on the bus, waiting until the write is done before returning.
+ * All PHY configuration is done through the TSEC1 MIIM regs */
+int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
+{
+ struct gfar_mii *regs = bus->priv;
+
+ /* Set the PHY address and the register address we want to write */
+ gfar_write(®s->miimadd, (mii_id << 8) | regnum);
+
+ /* Write out the value we want */
+ gfar_write(®s->miimcon, value);
+
+ /* Wait for the transaction to finish */
+ while (gfar_read(®s->miimind) & MIIMIND_BUSY)
+ cpu_relax();
+
+ return 0;
+}
+
+/* Read the bus for PHY at addr mii_id, register regnum, and
+ * return the value. Clears miimcom first. All PHY
+ * configuration has to be done through the TSEC1 MIIM regs */
+int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+ struct gfar_mii *regs = bus->priv;
+ u16 value;
+
+ /* Set the PHY address and the register address we want to read */
+ gfar_write(®s->miimadd, (mii_id << 8) | regnum);
+
+ /* Clear miimcom, and then initiate a read */
+ gfar_write(®s->miimcom, 0);
+ gfar_write(®s->miimcom, MII_READ_COMMAND);
+
+ /* Wait for the transaction to finish */
+ while (gfar_read(®s->miimind) & (MIIMIND_NOTVALID | MIIMIND_BUSY))
+ cpu_relax();
+
+ /* Grab the value of the register from miimstat */
+ value = gfar_read(®s->miimstat);
+
+ return value;
+}
+
+
+/* Reset the MIIM registers, and wait for the bus to free */
+int gfar_mdio_reset(struct mii_bus *bus)
+{
+ struct gfar_mii *regs = bus->priv;
+ unsigned int timeout = PHY_INIT_TIMEOUT;
+
+ spin_lock_bh(&bus->mdio_lock);
+
+ /* Reset the management interface */
+ gfar_write(®s->miimcfg, MIIMCFG_RESET);
+
+ /* Setup the MII Mgmt clock speed */
+ gfar_write(®s->miimcfg, MIIMCFG_INIT_VALUE);
+
+ /* Wait until the bus is free */
+ while ((gfar_read(®s->miimind) & MIIMIND_BUSY) &&
+ timeout--)
+ cpu_relax();
+
+ spin_unlock_bh(&bus->mdio_lock);
+
+ if(timeout <= 0) {
+ printk(KERN_ERR "%s: The MII Bus is stuck!\n",
+ bus->name);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+
+int gfar_mdio_probe(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct gianfar_mdio_data *pdata;
+ struct gfar_mii *regs;
+ struct mii_bus *new_bus;
+ int err = 0;
+
+ if (NULL == dev)
+ return -EINVAL;
+
+ new_bus = kmalloc(sizeof(struct mii_bus), GFP_KERNEL);
+
+ if (NULL == new_bus)
+ return -ENOMEM;
+
+ new_bus->name = "Gianfar MII Bus",
+ new_bus->read = &gfar_mdio_read,
+ new_bus->write = &gfar_mdio_write,
+ new_bus->reset = &gfar_mdio_reset,
+ new_bus->id = pdev->id;
+
+ pdata = (struct gianfar_mdio_data *)pdev->dev.platform_data;
+
+ if (NULL == pdata) {
+ printk(KERN_ERR "gfar mdio %d: Missing platform data!\n", pdev->id);
+ return -ENODEV;
+ }
+
+ /* Set the PHY base address */
+ regs = (struct gfar_mii *) ioremap(pdata->paddr,
+ sizeof (struct gfar_mii));
+
+ if (NULL == regs) {
+ err = -ENOMEM;
+ goto reg_map_fail;
+ }
+
+ new_bus->priv = regs;
+
+ new_bus->irq = pdata->irq;
+
+ new_bus->dev = dev;
+ dev_set_drvdata(dev, new_bus);
+
+ err = mdiobus_register(new_bus);
+
+ if (0 != err) {
+ printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
+ new_bus->name);
+ goto bus_register_fail;
+ }
+
+ return 0;
+
+bus_register_fail:
+ iounmap((void *) regs);
+reg_map_fail:
+ kfree(new_bus);
+
+ return err;
+}
+
+
+int gfar_mdio_remove(struct device *dev)
+{
+ struct mii_bus *bus = dev_get_drvdata(dev);
+
+ mdiobus_unregister(bus);
+
+ dev_set_drvdata(dev, NULL);
+
+ iounmap((void *) (&bus->priv));
+ bus->priv = NULL;
+ kfree(bus);
+
+ return 0;
+}
+
+static struct device_driver gianfar_mdio_driver = {
+ .name = "fsl-gianfar_mdio",
+ .bus = &platform_bus_type,
+ .probe = gfar_mdio_probe,
+ .remove = gfar_mdio_remove,
+};
+
+int __init gfar_mdio_init(void)
+{
+ return driver_register(&gianfar_mdio_driver);
+}
+
+void __exit gfar_mdio_exit(void)
+{
+ driver_unregister(&gianfar_mdio_driver);
+}
--- /dev/null
+/*
+ * drivers/net/gianfar_mii.h
+ *
+ * Gianfar Ethernet Driver -- MII Management Bus Implementation
+ * Driver for the MDIO bus controller in the Gianfar register space
+ *
+ * Author: Andy Fleming
+ * Maintainer: Kumar Gala (kumar.gala@freescale.com)
+ *
+ * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __GIANFAR_MII_H
+#define __GIANFAR_MII_H
+
+#define MIIMIND_BUSY 0x00000001
+#define MIIMIND_NOTVALID 0x00000004
+
+#define MII_READ_COMMAND 0x00000001
+
+#define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
+ | SUPPORTED_100baseT_Half \
+ | SUPPORTED_100baseT_Full \
+ | SUPPORTED_Autoneg \
+ | SUPPORTED_MII)
+
+struct gfar_mii {
+ u32 miimcfg; /* 0x.520 - MII Management Config Register */
+ u32 miimcom; /* 0x.524 - MII Management Command Register */
+ u32 miimadd; /* 0x.528 - MII Management Address Register */
+ u32 miimcon; /* 0x.52c - MII Management Control Register */
+ u32 miimstat; /* 0x.530 - MII Management Status Register */
+ u32 miimind; /* 0x.534 - MII Management Indicator Register */
+};
+
+int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
+int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
+int __init gfar_mdio_init(void);
+void __exit gfar_mdio_exit(void);
+#endif /* GIANFAR_PHY_H */
+++ /dev/null
-/*
- * drivers/net/gianfar_phy.c
- *
- * Gianfar Ethernet Driver -- PHY handling
- * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
- * Based on 8260_io/fcc_enet.c
- *
- * Author: Andy Fleming
- * Maintainer: Kumar Gala (kumar.gala@freescale.com)
- *
- * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/crc32.h>
-#include <linux/mii.h>
-
-#include "gianfar.h"
-#include "gianfar_phy.h"
-
-static void config_genmii_advert(struct gfar_mii_info *mii_info);
-static void genmii_setup_forced(struct gfar_mii_info *mii_info);
-static void genmii_restart_aneg(struct gfar_mii_info *mii_info);
-static int gbit_config_aneg(struct gfar_mii_info *mii_info);
-static int genmii_config_aneg(struct gfar_mii_info *mii_info);
-static int genmii_update_link(struct gfar_mii_info *mii_info);
-static int genmii_read_status(struct gfar_mii_info *mii_info);
-u16 phy_read(struct gfar_mii_info *mii_info, u16 regnum);
-void phy_write(struct gfar_mii_info *mii_info, u16 regnum, u16 val);
-
-/* Write value to the PHY for this device to the register at regnum, */
-/* waiting until the write is done before it returns. All PHY */
-/* configuration has to be done through the TSEC1 MIIM regs */
-void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value)
-{
- struct gfar_private *priv = netdev_priv(dev);
- struct gfar *regbase = priv->phyregs;
-
- /* Set the PHY address and the register address we want to write */
- gfar_write(®base->miimadd, (mii_id << 8) | regnum);
-
- /* Write out the value we want */
- gfar_write(®base->miimcon, value);
-
- /* Wait for the transaction to finish */
- while (gfar_read(®base->miimind) & MIIMIND_BUSY)
- cpu_relax();
-}
-
-/* Reads from register regnum in the PHY for device dev, */
-/* returning the value. Clears miimcom first. All PHY */
-/* configuration has to be done through the TSEC1 MIIM regs */
-int read_phy_reg(struct net_device *dev, int mii_id, int regnum)
-{
- struct gfar_private *priv = netdev_priv(dev);
- struct gfar *regbase = priv->phyregs;
- u16 value;
-
- /* Set the PHY address and the register address we want to read */
- gfar_write(®base->miimadd, (mii_id << 8) | regnum);
-
- /* Clear miimcom, and then initiate a read */
- gfar_write(®base->miimcom, 0);
- gfar_write(®base->miimcom, MII_READ_COMMAND);
-
- /* Wait for the transaction to finish */
- while (gfar_read(®base->miimind) & (MIIMIND_NOTVALID | MIIMIND_BUSY))
- cpu_relax();
-
- /* Grab the value of the register from miimstat */
- value = gfar_read(®base->miimstat);
-
- return value;
-}
-
-void mii_clear_phy_interrupt(struct gfar_mii_info *mii_info)
-{
- if(mii_info->phyinfo->ack_interrupt)
- mii_info->phyinfo->ack_interrupt(mii_info);
-}
-
-
-void mii_configure_phy_interrupt(struct gfar_mii_info *mii_info, u32 interrupts)
-{
- mii_info->interrupts = interrupts;
- if(mii_info->phyinfo->config_intr)
- mii_info->phyinfo->config_intr(mii_info);
-}
-
-
-/* Writes MII_ADVERTISE with the appropriate values, after
- * sanitizing advertise to make sure only supported features
- * are advertised
- */
-static void config_genmii_advert(struct gfar_mii_info *mii_info)
-{
- u32 advertise;
- u16 adv;
-
- /* Only allow advertising what this PHY supports */
- mii_info->advertising &= mii_info->phyinfo->features;
- advertise = mii_info->advertising;
-
- /* Setup standard advertisement */
- adv = phy_read(mii_info, MII_ADVERTISE);
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- if (advertise & ADVERTISED_10baseT_Half)
- adv |= ADVERTISE_10HALF;
- if (advertise & ADVERTISED_10baseT_Full)
- adv |= ADVERTISE_10FULL;
- if (advertise & ADVERTISED_100baseT_Half)
- adv |= ADVERTISE_100HALF;
- if (advertise & ADVERTISED_100baseT_Full)
- adv |= ADVERTISE_100FULL;
- phy_write(mii_info, MII_ADVERTISE, adv);
-}
-
-static void genmii_setup_forced(struct gfar_mii_info *mii_info)
-{
- u16 ctrl;
- u32 features = mii_info->phyinfo->features;
-
- ctrl = phy_read(mii_info, MII_BMCR);
-
- ctrl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_SPEED1000|BMCR_ANENABLE);
- ctrl |= BMCR_RESET;
-
- switch(mii_info->speed) {
- case SPEED_1000:
- if(features & (SUPPORTED_1000baseT_Half
- | SUPPORTED_1000baseT_Full)) {
- ctrl |= BMCR_SPEED1000;
- break;
- }
- mii_info->speed = SPEED_100;
- case SPEED_100:
- if (features & (SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full)) {
- ctrl |= BMCR_SPEED100;
- break;
- }
- mii_info->speed = SPEED_10;
- case SPEED_10:
- if (features & (SUPPORTED_10baseT_Half
- | SUPPORTED_10baseT_Full))
- break;
- default: /* Unsupported speed! */
- printk(KERN_ERR "%s: Bad speed!\n",
- mii_info->dev->name);
- break;
- }
-
- phy_write(mii_info, MII_BMCR, ctrl);
-}
-
-
-/* Enable and Restart Autonegotiation */
-static void genmii_restart_aneg(struct gfar_mii_info *mii_info)
-{
- u16 ctl;
-
- ctl = phy_read(mii_info, MII_BMCR);
- ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
- phy_write(mii_info, MII_BMCR, ctl);
-}
-
-
-static int gbit_config_aneg(struct gfar_mii_info *mii_info)
-{
- u16 adv;
- u32 advertise;
-
- if(mii_info->autoneg) {
- /* Configure the ADVERTISE register */
- config_genmii_advert(mii_info);
- advertise = mii_info->advertising;
-
- adv = phy_read(mii_info, MII_1000BASETCONTROL);
- adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP |
- MII_1000BASETCONTROL_HALFDUPLEXCAP);
- if (advertise & SUPPORTED_1000baseT_Half)
- adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
- if (advertise & SUPPORTED_1000baseT_Full)
- adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
- phy_write(mii_info, MII_1000BASETCONTROL, adv);
-
- /* Start/Restart aneg */
- genmii_restart_aneg(mii_info);
- } else
- genmii_setup_forced(mii_info);
-
- return 0;
-}
-
-static int marvell_config_aneg(struct gfar_mii_info *mii_info)
-{
- /* The Marvell PHY has an errata which requires
- * that certain registers get written in order
- * to restart autonegotiation */
- phy_write(mii_info, MII_BMCR, BMCR_RESET);
-
- phy_write(mii_info, 0x1d, 0x1f);
- phy_write(mii_info, 0x1e, 0x200c);
- phy_write(mii_info, 0x1d, 0x5);
- phy_write(mii_info, 0x1e, 0);
- phy_write(mii_info, 0x1e, 0x100);
-
- gbit_config_aneg(mii_info);
-
- return 0;
-}
-static int genmii_config_aneg(struct gfar_mii_info *mii_info)
-{
- if (mii_info->autoneg) {
- config_genmii_advert(mii_info);
- genmii_restart_aneg(mii_info);
- } else
- genmii_setup_forced(mii_info);
-
- return 0;
-}
-
-
-static int genmii_update_link(struct gfar_mii_info *mii_info)
-{
- u16 status;
-
- /* Do a fake read */
- phy_read(mii_info, MII_BMSR);
-
- /* Read link and autonegotiation status */
- status = phy_read(mii_info, MII_BMSR);
- if ((status & BMSR_LSTATUS) == 0)
- mii_info->link = 0;
- else
- mii_info->link = 1;
-
- /* If we are autonegotiating, and not done,
- * return an error */
- if (mii_info->autoneg && !(status & BMSR_ANEGCOMPLETE))
- return -EAGAIN;
-
- return 0;
-}
-
-static int genmii_read_status(struct gfar_mii_info *mii_info)
-{
- u16 status;
- int err;
-
- /* Update the link, but return if there
- * was an error */
- err = genmii_update_link(mii_info);
- if (err)
- return err;
-
- if (mii_info->autoneg) {
- status = phy_read(mii_info, MII_LPA);
-
- if (status & (LPA_10FULL | LPA_100FULL))
- mii_info->duplex = DUPLEX_FULL;
- else
- mii_info->duplex = DUPLEX_HALF;
- if (status & (LPA_100FULL | LPA_100HALF))
- mii_info->speed = SPEED_100;
- else
- mii_info->speed = SPEED_10;
- mii_info->pause = 0;
- }
- /* On non-aneg, we assume what we put in BMCR is the speed,
- * though magic-aneg shouldn't prevent this case from occurring
- */
-
- return 0;
-}
-static int marvell_read_status(struct gfar_mii_info *mii_info)
-{
- u16 status;
- int err;
-
- /* Update the link, but return if there
- * was an error */
- err = genmii_update_link(mii_info);
- if (err)
- return err;
-
- /* If the link is up, read the speed and duplex */
- /* If we aren't autonegotiating, assume speeds
- * are as set */
- if (mii_info->autoneg && mii_info->link) {
- int speed;
- status = phy_read(mii_info, MII_M1011_PHY_SPEC_STATUS);
-
-#if 0
- /* If speed and duplex aren't resolved,
- * return an error. Isn't this handled
- * by checking aneg?
- */
- if ((status & MII_M1011_PHY_SPEC_STATUS_RESOLVED) == 0)
- return -EAGAIN;
-#endif
-
- /* Get the duplexity */
- if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
- mii_info->duplex = DUPLEX_FULL;
- else
- mii_info->duplex = DUPLEX_HALF;
-
- /* Get the speed */
- speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK;
- switch(speed) {
- case MII_M1011_PHY_SPEC_STATUS_1000:
- mii_info->speed = SPEED_1000;
- break;
- case MII_M1011_PHY_SPEC_STATUS_100:
- mii_info->speed = SPEED_100;
- break;
- default:
- mii_info->speed = SPEED_10;
- break;
- }
- mii_info->pause = 0;
- }
-
- return 0;
-}
-
-
-static int cis820x_read_status(struct gfar_mii_info *mii_info)
-{
- u16 status;
- int err;
-
- /* Update the link, but return if there
- * was an error */
- err = genmii_update_link(mii_info);
- if (err)
- return err;
-
- /* If the link is up, read the speed and duplex */
- /* If we aren't autonegotiating, assume speeds
- * are as set */
- if (mii_info->autoneg && mii_info->link) {
- int speed;
-
- status = phy_read(mii_info, MII_CIS8201_AUX_CONSTAT);
- if (status & MII_CIS8201_AUXCONSTAT_DUPLEX)
- mii_info->duplex = DUPLEX_FULL;
- else
- mii_info->duplex = DUPLEX_HALF;
-
- speed = status & MII_CIS8201_AUXCONSTAT_SPEED;
-
- switch (speed) {
- case MII_CIS8201_AUXCONSTAT_GBIT:
- mii_info->speed = SPEED_1000;
- break;
- case MII_CIS8201_AUXCONSTAT_100:
- mii_info->speed = SPEED_100;
- break;
- default:
- mii_info->speed = SPEED_10;
- break;
- }
- }
-
- return 0;
-}
-
-static int marvell_ack_interrupt(struct gfar_mii_info *mii_info)
-{
- /* Clear the interrupts by reading the reg */
- phy_read(mii_info, MII_M1011_IEVENT);
-
- return 0;
-}
-
-static int marvell_config_intr(struct gfar_mii_info *mii_info)
-{
- if(mii_info->interrupts == MII_INTERRUPT_ENABLED)
- phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
- else
- phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
-
- return 0;
-}
-
-static int cis820x_init(struct gfar_mii_info *mii_info)
-{
- phy_write(mii_info, MII_CIS8201_AUX_CONSTAT,
- MII_CIS8201_AUXCONSTAT_INIT);
- phy_write(mii_info, MII_CIS8201_EXT_CON1,
- MII_CIS8201_EXTCON1_INIT);
-
- return 0;
-}
-
-static int cis820x_ack_interrupt(struct gfar_mii_info *mii_info)
-{
- phy_read(mii_info, MII_CIS8201_ISTAT);
-
- return 0;
-}
-
-static int cis820x_config_intr(struct gfar_mii_info *mii_info)
-{
- if(mii_info->interrupts == MII_INTERRUPT_ENABLED)
- phy_write(mii_info, MII_CIS8201_IMASK, MII_CIS8201_IMASK_MASK);
- else
- phy_write(mii_info, MII_CIS8201_IMASK, 0);
-
- return 0;
-}
-
-#define DM9161_DELAY 10
-
-static int dm9161_read_status(struct gfar_mii_info *mii_info)
-{
- u16 status;
- int err;
-
- /* Update the link, but return if there
- * was an error */
- err = genmii_update_link(mii_info);
- if (err)
- return err;
-
- /* If the link is up, read the speed and duplex */
- /* If we aren't autonegotiating, assume speeds
- * are as set */
- if (mii_info->autoneg && mii_info->link) {
- status = phy_read(mii_info, MII_DM9161_SCSR);
- if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H))
- mii_info->speed = SPEED_100;
- else
- mii_info->speed = SPEED_10;
-
- if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F))
- mii_info->duplex = DUPLEX_FULL;
- else
- mii_info->duplex = DUPLEX_HALF;
- }
-
- return 0;
-}
-
-
-static int dm9161_config_aneg(struct gfar_mii_info *mii_info)
-{
- struct dm9161_private *priv = mii_info->priv;
-
- if(0 == priv->resetdone)
- return -EAGAIN;
-
- return 0;
-}
-
-static void dm9161_timer(unsigned long data)
-{
- struct gfar_mii_info *mii_info = (struct gfar_mii_info *)data;
- struct dm9161_private *priv = mii_info->priv;
- u16 status = phy_read(mii_info, MII_BMSR);
-
- if (status & BMSR_ANEGCOMPLETE) {
- priv->resetdone = 1;
- } else
- mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ);
-}
-
-static int dm9161_init(struct gfar_mii_info *mii_info)
-{
- struct dm9161_private *priv;
-
- /* Allocate the private data structure */
- priv = kmalloc(sizeof(struct dm9161_private), GFP_KERNEL);
-
- if (NULL == priv)
- return -ENOMEM;
-
- mii_info->priv = priv;
-
- /* Reset is not done yet */
- priv->resetdone = 0;
-
- /* Isolate the PHY */
- phy_write(mii_info, MII_BMCR, BMCR_ISOLATE);
-
- /* Do not bypass the scrambler/descrambler */
- phy_write(mii_info, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
-
- /* Clear 10BTCSR to default */
- phy_write(mii_info, MII_DM9161_10BTCSR, MII_DM9161_10BTCSR_INIT);
-
- /* Reconnect the PHY, and enable Autonegotiation */
- phy_write(mii_info, MII_BMCR, BMCR_ANENABLE);
-
- /* Start a timer for DM9161_DELAY seconds to wait
- * for the PHY to be ready */
- init_timer(&priv->timer);
- priv->timer.function = &dm9161_timer;
- priv->timer.data = (unsigned long) mii_info;
- mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ);
-
- return 0;
-}
-
-static void dm9161_close(struct gfar_mii_info *mii_info)
-{
- struct dm9161_private *priv = mii_info->priv;
-
- del_timer_sync(&priv->timer);
- kfree(priv);
-}
-
-#if 0
-static int dm9161_ack_interrupt(struct gfar_mii_info *mii_info)
-{
- phy_read(mii_info, MII_DM9161_INTR);
-
- return 0;
-}
-#endif
-
-/* Cicada 820x */
-static struct phy_info phy_info_cis820x = {
- 0x000fc440,
- "Cicada Cis8204",
- 0x000fffc0,
- .features = MII_GBIT_FEATURES,
- .init = &cis820x_init,
- .config_aneg = &gbit_config_aneg,
- .read_status = &cis820x_read_status,
- .ack_interrupt = &cis820x_ack_interrupt,
- .config_intr = &cis820x_config_intr,
-};
-
-static struct phy_info phy_info_dm9161 = {
- .phy_id = 0x0181b880,
- .name = "Davicom DM9161E",
- .phy_id_mask = 0x0ffffff0,
- .init = dm9161_init,
- .config_aneg = dm9161_config_aneg,
- .read_status = dm9161_read_status,
- .close = dm9161_close,
-};
-
-static struct phy_info phy_info_marvell = {
- .phy_id = 0x01410c00,
- .phy_id_mask = 0xffffff00,
- .name = "Marvell 88E1101/88E1111",
- .features = MII_GBIT_FEATURES,
- .config_aneg = &marvell_config_aneg,
- .read_status = &marvell_read_status,
- .ack_interrupt = &marvell_ack_interrupt,
- .config_intr = &marvell_config_intr,
-};
-
-static struct phy_info phy_info_genmii= {
- .phy_id = 0x00000000,
- .phy_id_mask = 0x00000000,
- .name = "Generic MII",
- .features = MII_BASIC_FEATURES,
- .config_aneg = genmii_config_aneg,
- .read_status = genmii_read_status,
-};
-
-static struct phy_info *phy_info[] = {
- &phy_info_cis820x,
- &phy_info_marvell,
- &phy_info_dm9161,
- &phy_info_genmii,
- NULL
-};
-
-u16 phy_read(struct gfar_mii_info *mii_info, u16 regnum)
-{
- u16 retval;
- unsigned long flags;
-
- spin_lock_irqsave(&mii_info->mdio_lock, flags);
- retval = mii_info->mdio_read(mii_info->dev, mii_info->mii_id, regnum);
- spin_unlock_irqrestore(&mii_info->mdio_lock, flags);
-
- return retval;
-}
-
-void phy_write(struct gfar_mii_info *mii_info, u16 regnum, u16 val)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&mii_info->mdio_lock, flags);
- mii_info->mdio_write(mii_info->dev,
- mii_info->mii_id,
- regnum, val);
- spin_unlock_irqrestore(&mii_info->mdio_lock, flags);
-}
-
-/* Use the PHY ID registers to determine what type of PHY is attached
- * to device dev. return a struct phy_info structure describing that PHY
- */
-struct phy_info * get_phy_info(struct gfar_mii_info *mii_info)
-{
- u16 phy_reg;
- u32 phy_ID;
- int i;
- struct phy_info *theInfo = NULL;
- struct net_device *dev = mii_info->dev;
-
- /* Grab the bits from PHYIR1, and put them in the upper half */
- phy_reg = phy_read(mii_info, MII_PHYSID1);
- phy_ID = (phy_reg & 0xffff) << 16;
-
- /* Grab the bits from PHYIR2, and put them in the lower half */
- phy_reg = phy_read(mii_info, MII_PHYSID2);
- phy_ID |= (phy_reg & 0xffff);
-
- /* loop through all the known PHY types, and find one that */
- /* matches the ID we read from the PHY. */
- for (i = 0; phy_info[i]; i++)
- if (phy_info[i]->phy_id ==
- (phy_ID & phy_info[i]->phy_id_mask)) {
- theInfo = phy_info[i];
- break;
- }
-
- /* This shouldn't happen, as we have generic PHY support */
- if (theInfo == NULL) {
- printk("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
- return NULL;
- } else {
- printk("%s: PHY is %s (%x)\n", dev->name, theInfo->name,
- phy_ID);
- }
-
- return theInfo;
-}
+++ /dev/null
-/*
- * drivers/net/gianfar_phy.h
- *
- * Gianfar Ethernet Driver -- PHY handling
- * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
- * Based on 8260_io/fcc_enet.c
- *
- * Author: Andy Fleming
- * Maintainer: Kumar Gala (kumar.gala@freescale.com)
- *
- * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __GIANFAR_PHY_H
-#define __GIANFAR_PHY_H
-
-#define MII_end ((u32)-2)
-#define MII_read ((u32)-1)
-
-#define MIIMIND_BUSY 0x00000001
-#define MIIMIND_NOTVALID 0x00000004
-
-#define GFAR_AN_TIMEOUT 2000
-
-/* 1000BT control (Marvell & BCM54xx at least) */
-#define MII_1000BASETCONTROL 0x09
-#define MII_1000BASETCONTROL_FULLDUPLEXCAP 0x0200
-#define MII_1000BASETCONTROL_HALFDUPLEXCAP 0x0100
-
-/* Cicada Extended Control Register 1 */
-#define MII_CIS8201_EXT_CON1 0x17
-#define MII_CIS8201_EXTCON1_INIT 0x0000
-
-/* Cicada Interrupt Mask Register */
-#define MII_CIS8201_IMASK 0x19
-#define MII_CIS8201_IMASK_IEN 0x8000
-#define MII_CIS8201_IMASK_SPEED 0x4000
-#define MII_CIS8201_IMASK_LINK 0x2000
-#define MII_CIS8201_IMASK_DUPLEX 0x1000
-#define MII_CIS8201_IMASK_MASK 0xf000
-
-/* Cicada Interrupt Status Register */
-#define MII_CIS8201_ISTAT 0x1a
-#define MII_CIS8201_ISTAT_STATUS 0x8000
-#define MII_CIS8201_ISTAT_SPEED 0x4000
-#define MII_CIS8201_ISTAT_LINK 0x2000
-#define MII_CIS8201_ISTAT_DUPLEX 0x1000
-
-/* Cicada Auxiliary Control/Status Register */
-#define MII_CIS8201_AUX_CONSTAT 0x1c
-#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
-#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
-#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
-#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
-#define MII_CIS8201_AUXCONSTAT_100 0x0008
-
-/* 88E1011 PHY Status Register */
-#define MII_M1011_PHY_SPEC_STATUS 0x11
-#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
-#define MII_M1011_PHY_SPEC_STATUS_100 0x4000
-#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
-#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
-#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
-#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
-
-#define MII_M1011_IEVENT 0x13
-#define MII_M1011_IEVENT_CLEAR 0x0000
-
-#define MII_M1011_IMASK 0x12
-#define MII_M1011_IMASK_INIT 0x6400
-#define MII_M1011_IMASK_CLEAR 0x0000
-
-#define MII_DM9161_SCR 0x10
-#define MII_DM9161_SCR_INIT 0x0610
-
-/* DM9161 Specified Configuration and Status Register */
-#define MII_DM9161_SCSR 0x11
-#define MII_DM9161_SCSR_100F 0x8000
-#define MII_DM9161_SCSR_100H 0x4000
-#define MII_DM9161_SCSR_10F 0x2000
-#define MII_DM9161_SCSR_10H 0x1000
-
-/* DM9161 Interrupt Register */
-#define MII_DM9161_INTR 0x15
-#define MII_DM9161_INTR_PEND 0x8000
-#define MII_DM9161_INTR_DPLX_MASK 0x0800
-#define MII_DM9161_INTR_SPD_MASK 0x0400
-#define MII_DM9161_INTR_LINK_MASK 0x0200
-#define MII_DM9161_INTR_MASK 0x0100
-#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
-#define MII_DM9161_INTR_SPD_CHANGE 0x0008
-#define MII_DM9161_INTR_LINK_CHANGE 0x0004
-#define MII_DM9161_INTR_INIT 0x0000
-#define MII_DM9161_INTR_STOP \
-(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
- | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
-
-/* DM9161 10BT Configuration/Status */
-#define MII_DM9161_10BTCSR 0x12
-#define MII_DM9161_10BTCSR_INIT 0x7800
-
-#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
- SUPPORTED_10baseT_Full | \
- SUPPORTED_100baseT_Half | \
- SUPPORTED_100baseT_Full | \
- SUPPORTED_Autoneg | \
- SUPPORTED_TP | \
- SUPPORTED_MII)
-
-#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
- SUPPORTED_1000baseT_Half | \
- SUPPORTED_1000baseT_Full)
-
-#define MII_READ_COMMAND 0x00000001
-
-#define MII_INTERRUPT_DISABLED 0x0
-#define MII_INTERRUPT_ENABLED 0x1
-/* Taken from mii_if_info and sungem_phy.h */
-struct gfar_mii_info {
- /* Information about the PHY type */
- /* And management functions */
- struct phy_info *phyinfo;
-
- /* forced speed & duplex (no autoneg)
- * partner speed & duplex & pause (autoneg)
- */
- int speed;
- int duplex;
- int pause;
-
- /* The most recently read link state */
- int link;
-
- /* Enabled Interrupts */
- u32 interrupts;
-
- u32 advertising;
- int autoneg;
- int mii_id;
-
- /* private data pointer */
- /* For use by PHYs to maintain extra state */
- void *priv;
-
- /* Provided by host chip */
- struct net_device *dev;
-
- /* A lock to ensure that only one thing can read/write
- * the MDIO bus at a time */
- spinlock_t mdio_lock;
-
- /* Provided by ethernet driver */
- int (*mdio_read) (struct net_device *dev, int mii_id, int reg);
- void (*mdio_write) (struct net_device *dev, int mii_id, int reg, int val);
-};
-
-/* struct phy_info: a structure which defines attributes for a PHY
- *
- * id will contain a number which represents the PHY. During
- * startup, the driver will poll the PHY to find out what its
- * UID--as defined by registers 2 and 3--is. The 32-bit result
- * gotten from the PHY will be ANDed with phy_id_mask to
- * discard any bits which may change based on revision numbers
- * unimportant to functionality
- *
- * There are 6 commands which take a gfar_mii_info structure.
- * Each PHY must declare config_aneg, and read_status.
- */
-struct phy_info {
- u32 phy_id;
- char *name;
- unsigned int phy_id_mask;
- u32 features;
-
- /* Called to initialize the PHY */
- int (*init)(struct gfar_mii_info *mii_info);
-
- /* Called to suspend the PHY for power */
- int (*suspend)(struct gfar_mii_info *mii_info);
-
- /* Reconfigures autonegotiation (or disables it) */
- int (*config_aneg)(struct gfar_mii_info *mii_info);
-
- /* Determines the negotiated speed and duplex */
- int (*read_status)(struct gfar_mii_info *mii_info);
-
- /* Clears any pending interrupts */
- int (*ack_interrupt)(struct gfar_mii_info *mii_info);
-
- /* Enables or disables interrupts */
- int (*config_intr)(struct gfar_mii_info *mii_info);
-
- /* Clears up any memory if needed */
- void (*close)(struct gfar_mii_info *mii_info);
-};
-
-struct phy_info *get_phy_info(struct gfar_mii_info *mii_info);
-int read_phy_reg(struct net_device *dev, int mii_id, int regnum);
-void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value);
-void mii_clear_phy_interrupt(struct gfar_mii_info *mii_info);
-void mii_configure_phy_interrupt(struct gfar_mii_info *mii_info, u32 interrupts);
-
-struct dm9161_private {
- struct timer_list timer;
- int resetdone;
-};
-
-#endif /* GIANFAR_PHY_H */
projects / linux-2.6 / commitdiff