*
* Theory of operation
*
- * The driver is initialized through platform_device. Structures which
- * 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.
+ * The driver is initialized through of_device. Configuration information
+ * is therefore conveyed through an OF-style device tree.
*
* The Gianfar Ethernet Controller uses a ring of buffer
* descriptors. The beginning is indicated by a register
#include <linux/if_vlan.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/crc32.h>
#include <linux/mii.h>
#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/of.h>
#include "gianfar.h"
#include "gianfar_mii.h"
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 platform_device *pdev);
-static int gfar_remove(struct platform_device *pdev);
+static int gfar_probe(struct of_device *ofdev,
+ const struct of_device_id *match);
+static int gfar_remove(struct of_device *ofdev);
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);
return (priv->vlan_enable || priv->rx_csum_enable);
}
+static int gfar_of_init(struct net_device *dev)
+{
+ struct device_node *phy, *mdio;
+ const unsigned int *id;
+ const char *model;
+ const char *ctype;
+ const void *mac_addr;
+ const phandle *ph;
+ u64 addr, size;
+ int err = 0;
+ struct gfar_private *priv = netdev_priv(dev);
+ struct device_node *np = priv->node;
+ char bus_name[MII_BUS_ID_SIZE];
+
+ if (!np || !of_device_is_available(np))
+ return -ENODEV;
+
+ /* get a pointer to the register memory */
+ addr = of_translate_address(np, of_get_address(np, 0, &size, NULL));
+ priv->regs = ioremap(addr, size);
+
+ if (priv->regs == NULL)
+ return -ENOMEM;
+
+ priv->interruptTransmit = irq_of_parse_and_map(np, 0);
+
+ model = of_get_property(np, "model", NULL);
+
+ /* If we aren't the FEC we have multiple interrupts */
+ if (model && strcasecmp(model, "FEC")) {
+ priv->interruptReceive = irq_of_parse_and_map(np, 1);
+
+ priv->interruptError = irq_of_parse_and_map(np, 2);
+
+ if (priv->interruptTransmit < 0 ||
+ priv->interruptReceive < 0 ||
+ priv->interruptError < 0) {
+ err = -EINVAL;
+ goto err_out;
+ }
+ }
+
+ mac_addr = of_get_mac_address(np);
+ if (mac_addr)
+ memcpy(dev->dev_addr, mac_addr, MAC_ADDR_LEN);
+
+ if (model && !strcasecmp(model, "TSEC"))
+ priv->device_flags =
+ FSL_GIANFAR_DEV_HAS_GIGABIT |
+ FSL_GIANFAR_DEV_HAS_COALESCE |
+ FSL_GIANFAR_DEV_HAS_RMON |
+ FSL_GIANFAR_DEV_HAS_MULTI_INTR;
+ if (model && !strcasecmp(model, "eTSEC"))
+ priv->device_flags =
+ FSL_GIANFAR_DEV_HAS_GIGABIT |
+ FSL_GIANFAR_DEV_HAS_COALESCE |
+ FSL_GIANFAR_DEV_HAS_RMON |
+ FSL_GIANFAR_DEV_HAS_MULTI_INTR |
+ FSL_GIANFAR_DEV_HAS_CSUM |
+ FSL_GIANFAR_DEV_HAS_VLAN |
+ FSL_GIANFAR_DEV_HAS_MAGIC_PACKET |
+ FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
+
+ ctype = of_get_property(np, "phy-connection-type", NULL);
+
+ /* We only care about rgmii-id. The rest are autodetected */
+ if (ctype && !strcmp(ctype, "rgmii-id"))
+ priv->interface = PHY_INTERFACE_MODE_RGMII_ID;
+ else
+ priv->interface = PHY_INTERFACE_MODE_MII;
+
+ if (of_get_property(np, "fsl,magic-packet", NULL))
+ priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET;
+
+ ph = of_get_property(np, "phy-handle", NULL);
+ if (ph == NULL) {
+ u32 *fixed_link;
+
+ fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL);
+ if (!fixed_link) {
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ snprintf(priv->phy_bus_id, BUS_ID_SIZE, PHY_ID_FMT, "0",
+ fixed_link[0]);
+ } else {
+ phy = of_find_node_by_phandle(*ph);
+
+ if (phy == NULL) {
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ mdio = of_get_parent(phy);
+
+ id = of_get_property(phy, "reg", NULL);
+
+ of_node_put(phy);
+ of_node_put(mdio);
+
+ gfar_mdio_bus_name(bus_name, mdio);
+ snprintf(priv->phy_bus_id, BUS_ID_SIZE, "%s:%02x",
+ bus_name, *id);
+ }
+
+ /* Find the TBI PHY. If it's not there, we don't support SGMII */
+ ph = of_get_property(np, "tbi-handle", NULL);
+ if (ph) {
+ struct device_node *tbi = of_find_node_by_phandle(*ph);
+ struct of_device *ofdev;
+ struct mii_bus *bus;
+
+ if (!tbi)
+ return 0;
+
+ mdio = of_get_parent(tbi);
+ if (!mdio)
+ return 0;
+
+ ofdev = of_find_device_by_node(mdio);
+
+ of_node_put(mdio);
+
+ id = of_get_property(tbi, "reg", NULL);
+ if (!id)
+ return 0;
+
+ of_node_put(tbi);
+
+ bus = dev_get_drvdata(&ofdev->dev);
+
+ priv->tbiphy = bus->phy_map[*id];
+ }
+
+ return 0;
+
+err_out:
+ iounmap(priv->regs);
+ return err;
+}
+
/* Set up the ethernet device structure, private data,
* and anything else we need before we start */
-static int gfar_probe(struct platform_device *pdev)
+static int gfar_probe(struct of_device *ofdev,
+ const struct of_device_id *match)
{
u32 tempval;
struct net_device *dev = NULL;
struct gfar_private *priv = NULL;
- struct gianfar_platform_data *einfo;
- struct resource *r;
- int err = 0, irq;
-
- einfo = (struct gianfar_platform_data *) pdev->dev.platform_data;
-
- if (NULL == einfo) {
- printk(KERN_ERR "gfar %d: Missing additional data!\n",
- pdev->id);
-
- return -ENODEV;
- }
+ int err = 0;
+ DECLARE_MAC_BUF(mac);
/* Create an ethernet device instance */
dev = alloc_etherdev(sizeof (*priv));
priv = netdev_priv(dev);
priv->dev = dev;
+ priv->node = ofdev->node;
- /* Set the info in the priv to the current info */
- priv->einfo = einfo;
-
- /* fill out IRQ fields */
- if (einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
- irq = platform_get_irq_byname(pdev, "tx");
- if (irq < 0)
- goto regs_fail;
- priv->interruptTransmit = irq;
-
- irq = platform_get_irq_byname(pdev, "rx");
- if (irq < 0)
- goto regs_fail;
- priv->interruptReceive = irq;
-
- irq = platform_get_irq_byname(pdev, "error");
- if (irq < 0)
- goto regs_fail;
- priv->interruptError = irq;
- } else {
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- goto regs_fail;
- priv->interruptTransmit = irq;
- }
-
- /* get a pointer to the register memory */
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->regs = ioremap(r->start, sizeof (struct gfar));
+ err = gfar_of_init(dev);
- if (NULL == priv->regs) {
- err = -ENOMEM;
+ if (err)
goto regs_fail;
- }
spin_lock_init(&priv->txlock);
spin_lock_init(&priv->rxlock);
spin_lock_init(&priv->bflock);
INIT_WORK(&priv->reset_task, gfar_reset_task);
- platform_set_drvdata(pdev, dev);
+ dev_set_drvdata(&ofdev->dev, priv);
/* Stop the DMA engine now, in case it was running before */
/* (The firmware could have used it, and left it running). */
/* Initialize ECNTRL */
gfar_write(&priv->regs->ecntrl, ECNTRL_INIT_SETTINGS);
- /* Copy the station address into the dev structure, */
- memcpy(dev->dev_addr, einfo->mac_addr, MAC_ADDR_LEN);
-
/* Set the dev->base_addr to the gfar reg region */
dev->base_addr = (unsigned long) (priv->regs);
- SET_NETDEV_DEV(dev, &pdev->dev);
+ SET_NETDEV_DEV(dev, &ofdev->dev);
/* Fill in the dev structure */
dev->open = gfar_enet_open;
dev->ethtool_ops = &gfar_ethtool_ops;
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM) {
priv->rx_csum_enable = 1;
dev->features |= NETIF_F_IP_CSUM;
} else
priv->vlgrp = NULL;
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
dev->vlan_rx_register = gfar_vlan_rx_register;
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
priv->vlan_enable = 1;
}
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) {
priv->extended_hash = 1;
priv->hash_width = 9;
priv->hash_regs[7] = &priv->regs->gaddr7;
}
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_PADDING)
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_PADDING)
priv->padding = DEFAULT_PADDING;
else
priv->padding = 0;
return err;
}
-static int gfar_remove(struct platform_device *pdev)
+static int gfar_remove(struct of_device *ofdev)
{
- struct net_device *dev = platform_get_drvdata(pdev);
- struct gfar_private *priv = netdev_priv(dev);
+ struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
- platform_set_drvdata(pdev, NULL);
+ dev_set_drvdata(&ofdev->dev, NULL);
iounmap(priv->regs);
- free_netdev(dev);
+ free_netdev(priv->dev);
return 0;
}
#ifdef CONFIG_PM
-static int gfar_suspend(struct platform_device *pdev, pm_message_t state)
+static int gfar_suspend(struct of_device *ofdev, pm_message_t state)
{
- struct net_device *dev = platform_get_drvdata(pdev);
- struct gfar_private *priv = netdev_priv(dev);
+ struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
+ struct net_device *dev = priv->dev;
unsigned long flags;
u32 tempval;
int magic_packet = priv->wol_en &&
- (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
+ (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
netif_device_detach(dev);
return 0;
}
-static int gfar_resume(struct platform_device *pdev)
+static int gfar_resume(struct of_device *ofdev)
{
- struct net_device *dev = platform_get_drvdata(pdev);
- struct gfar_private *priv = netdev_priv(dev);
+ struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
+ struct net_device *dev = priv->dev;
unsigned long flags;
u32 tempval;
int magic_packet = priv->wol_en &&
- (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
+ (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
if (!netif_running(dev)) {
netif_device_attach(dev);
if (ecntrl & ECNTRL_REDUCED_MII_MODE)
return PHY_INTERFACE_MODE_RMII;
else {
- phy_interface_t interface = priv->einfo->interface;
+ phy_interface_t interface = priv->interface;
/*
* This isn't autodetected right now, so it must
}
}
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT)
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT)
return PHY_INTERFACE_MODE_GMII;
return PHY_INTERFACE_MODE_MII;
{
struct gfar_private *priv = netdev_priv(dev);
uint gigabit_support =
- priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
+ priv->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
SUPPORTED_1000baseT_Full : 0;
struct phy_device *phydev;
- char phy_id[BUS_ID_SIZE];
phy_interface_t interface;
priv->oldlink = 0;
priv->oldspeed = 0;
priv->oldduplex = -1;
- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, priv->einfo->bus_id, priv->einfo->phy_id);
-
interface = gfar_get_interface(dev);
- phydev = phy_connect(dev, phy_id, &adjust_link, 0, interface);
+ phydev = phy_connect(dev, priv->phy_bus_id, &adjust_link, 0, interface);
if (interface == PHY_INTERFACE_MODE_SGMII)
gfar_configure_serdes(dev);
static void gfar_configure_serdes(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
- struct gfar_mii __iomem *regs =
- (void __iomem *)&priv->regs->gfar_mii_regs;
- int tbipa = gfar_read(&priv->regs->tbipa);
- struct mii_bus *bus = gfar_get_miibus(priv);
- if (bus)
- mutex_lock(&bus->mdio_lock);
+ if (!priv->tbiphy) {
+ printk(KERN_WARNING "SGMII mode requires that the device "
+ "tree specify a tbi-handle\n");
+ return;
+ }
- /* If the link is already up, we must already be ok, and don't need to
+ /*
+ * If the link is already up, we must already be ok, and don't need to
* configure and reset the TBI<->SerDes link. Maybe U-Boot configured
* everything for us? Resetting it takes the link down and requires
* several seconds for it to come back.
*/
- if (gfar_local_mdio_read(regs, tbipa, MII_BMSR) & BMSR_LSTATUS)
- goto done;
+ if (phy_read(priv->tbiphy, MII_BMSR) & BMSR_LSTATUS)
+ return;
/* Single clk mode, mii mode off(for serdes communication) */
- gfar_local_mdio_write(regs, tbipa, MII_TBICON, TBICON_CLK_SELECT);
+ phy_write(priv->tbiphy, MII_TBICON, TBICON_CLK_SELECT);
- gfar_local_mdio_write(regs, tbipa, MII_ADVERTISE,
+ phy_write(priv->tbiphy, MII_ADVERTISE,
ADVERTISE_1000XFULL | ADVERTISE_1000XPAUSE |
ADVERTISE_1000XPSE_ASYM);
- gfar_local_mdio_write(regs, tbipa, MII_BMCR, BMCR_ANENABLE |
+ phy_write(priv->tbiphy, MII_BMCR, BMCR_ANENABLE |
BMCR_ANRESTART | BMCR_FULLDPLX | BMCR_SPEED1000);
-
- done:
- if (bus)
- mutex_unlock(&bus->mdio_lock);
}
static void init_registers(struct net_device *dev)
gfar_write(&priv->regs->gaddr7, 0);
/* Zero out the rmon mib registers if it has them */
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
memset_io(&(priv->regs->rmon), 0, sizeof (struct rmon_mib));
/* Mask off the CAM interrupts */
spin_unlock_irqrestore(&priv->txlock, flags);
/* Free the IRQs */
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
free_irq(priv->interruptError, dev);
free_irq(priv->interruptTransmit, dev);
free_irq(priv->interruptReceive, dev);
/* If the device has multiple interrupts, register for
* them. Otherwise, only register for the one */
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
/* Install our interrupt handlers for Error,
* Transmit, and Receive */
if (request_irq(priv->interruptError, gfar_error,
struct gfar_private *priv = netdev_priv(dev);
/* If the device has multiple interrupts, run tx/rx */
- if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
+ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
disable_irq(priv->interruptTransmit);
disable_irq(priv->interruptReceive);
disable_irq(priv->interruptError);
gfar_write(&priv->regs->ievent, events & IEVENT_ERR_MASK);
/* Magic Packet is not an error. */
- if ((priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
+ if ((priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
(events & IEVENT_MAG))
events &= ~IEVENT_MAG;
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:fsl-gianfar");
+static struct of_device_id gfar_match[] =
+{
+ {
+ .type = "network",
+ .compatible = "gianfar",
+ },
+ {},
+};
+
/* Structure for a device driver */
-static struct platform_driver gfar_driver = {
+static struct of_platform_driver gfar_driver = {
+ .name = "fsl-gianfar",
+ .match_table = gfar_match,
+
.probe = gfar_probe,
.remove = gfar_remove,
.suspend = gfar_suspend,
.resume = gfar_resume,
- .driver = {
- .name = "fsl-gianfar",
- .owner = THIS_MODULE,
- },
};
static int __init gfar_init(void)
if (err)
return err;
- err = platform_driver_register(&gfar_driver);
+ err = of_register_platform_driver(&gfar_driver);
if (err)
gfar_mdio_exit();
static void __exit gfar_exit(void)
{
- platform_driver_unregister(&gfar_driver);
+ of_unregister_platform_driver(&gfar_driver);
gfar_mdio_exit();
}
projects / linux-2.6-omap-h63xx.git / blobdiff