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add r6040 phylib support which allows to use the ip175c switch driver on ar525w

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SVN-Revision: 21521
This commit is contained in:
Florian Fainelli 2010-05-21 09:53:59 +00:00
parent 22eaf8b658
commit 58405b0509
3 changed files with 471 additions and 3 deletions
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2
target/linux/rdc/Makefile
View file

@ -16,7 +16,7 @@ LINUX_VERSION:=2.6.32.12
include $(INCLUDE_DIR)/target.mk
DEFAULT_PACKAGES += wpad-mini kmod-r6040 kmod-input-core \
DEFAULT_PACKAGES += wpad-mini kmod-libphy kmod-r6040 kmod-input-core \
kmod-input-polldev kmod-input-gpio-buttons kmod-button-hotplug \
kmod-rdc321x-wdt

468
target/linux/rdc/patches-2.6.32/014-r6040_phylib_support.patch Normal file
View file

@ -0,0 +1,468 @@
Index: linux-2.6.32.12/drivers/net/r6040.c
===================================================================
--- linux-2.6.32.12.orig/drivers/net/r6040.c 2010-05-20 10:19:41.000000000 +0200
+++ linux-2.6.32.12/drivers/net/r6040.c 2010-05-20 10:28:48.000000000 +0200
@@ -45,6 +45,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
+#include <linux/phy.h>
#include <asm/processor.h>
@@ -180,7 +181,6 @@
struct r6040_private {
spinlock_t lock; /* driver lock */
- struct timer_list timer;
struct pci_dev *pdev;
struct r6040_descriptor *rx_insert_ptr;
struct r6040_descriptor *rx_remove_ptr;
@@ -190,13 +190,15 @@
struct r6040_descriptor *tx_ring;
dma_addr_t rx_ring_dma;
dma_addr_t tx_ring_dma;
- u16 tx_free_desc, phy_addr, phy_mode;
+ u16 tx_free_desc, phy_addr;
u16 mcr0, mcr1;
- u16 switch_sig;
struct net_device *dev;
- struct mii_if_info mii_if;
+ struct mii_bus *mii_bus;
struct napi_struct napi;
void __iomem *base;
+ struct phy_device *phydev;
+ int old_link;
+ int old_duplex;
};
static char version[] __devinitdata = KERN_INFO DRV_NAME
@@ -239,20 +241,29 @@
}
}
-static int r6040_mdio_read(struct net_device *dev, int mii_id, int reg)
+static int r6040_mdiobus_read(struct mii_bus *bus, int phy_addr, int reg)
{
+ struct net_device *dev = bus->priv;
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
- return (r6040_phy_read(ioaddr, lp->phy_addr, reg));
+ return r6040_phy_read(ioaddr, phy_addr, reg);
}
-static void r6040_mdio_write(struct net_device *dev, int mii_id, int reg, int val)
+static int r6040_mdiobus_write(struct mii_bus *bus, int phy_addr, int reg, u16 value)
{
+ struct net_device *dev = bus->priv;
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
- r6040_phy_write(ioaddr, lp->phy_addr, reg, val);
+ r6040_phy_write(ioaddr, phy_addr, reg, value);
+
+ return 0;
+}
+
+static int r6040_mdiobus_reset(struct mii_bus *bus)
+{
+ return 0;
}
static void r6040_free_txbufs(struct net_device *dev)
@@ -409,10 +420,9 @@
void __iomem *ioaddr = priv->base;
printk(KERN_WARNING "%s: transmit timed out, int enable %4.4x "
- "status %4.4x, PHY status %4.4x\n",
+ "status %4.4x\n",
dev->name, ioread16(ioaddr + MIER),
- ioread16(ioaddr + MISR),
- r6040_mdio_read(dev, priv->mii_if.phy_id, MII_BMSR));
+ ioread16(ioaddr + MISR));
dev->stats.tx_errors++;
@@ -464,9 +474,6 @@
struct r6040_private *lp = netdev_priv(dev);
struct pci_dev *pdev = lp->pdev;
- /* deleted timer */
- del_timer_sync(&lp->timer);
-
spin_lock_irq(&lp->lock);
napi_disable(&lp->napi);
netif_stop_queue(dev);
@@ -496,64 +503,14 @@
return 0;
}
-/* Status of PHY CHIP */
-static int r6040_phy_mode_chk(struct net_device *dev)
-{
- struct r6040_private *lp = netdev_priv(dev);
- void __iomem *ioaddr = lp->base;
- int phy_dat;
-
- /* PHY Link Status Check */
- phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 1);
- if (!(phy_dat & 0x4))
- phy_dat = 0x8000; /* Link Failed, full duplex */
-
- /* PHY Chip Auto-Negotiation Status */
- phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 1);
- if (phy_dat & 0x0020) {
- /* Auto Negotiation Mode */
- phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 5);
- phy_dat &= r6040_phy_read(ioaddr, lp->phy_addr, 4);
- if (phy_dat & 0x140)
- /* Force full duplex */
- phy_dat = 0x8000;
- else
- phy_dat = 0;
- } else {
- /* Force Mode */
- phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 0);
- if (phy_dat & 0x100)
- phy_dat = 0x8000;
- else
- phy_dat = 0x0000;
- }
-
- return phy_dat;
-};
-
-static void r6040_set_carrier(struct mii_if_info *mii)
-{
- if (r6040_phy_mode_chk(mii->dev)) {
- /* autoneg is off: Link is always assumed to be up */
- if (!netif_carrier_ok(mii->dev))
- netif_carrier_on(mii->dev);
- } else
- r6040_phy_mode_chk(mii->dev);
-}
-
static int r6040_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct r6040_private *lp = netdev_priv(dev);
- struct mii_ioctl_data *data = if_mii(rq);
- int rc;
- if (!netif_running(dev))
+ if (!lp->phydev)
return -EINVAL;
- spin_lock_irq(&lp->lock);
- rc = generic_mii_ioctl(&lp->mii_if, data, cmd, NULL);
- spin_unlock_irq(&lp->lock);
- r6040_set_carrier(&lp->mii_if);
- return rc;
+
+ return phy_mii_ioctl(lp->phydev, if_mii(rq), cmd);
}
static int r6040_rx(struct net_device *dev, int limit)
@@ -752,26 +709,6 @@
if (ret)
return ret;
- /* Read the PHY ID */
- lp->switch_sig = r6040_phy_read(ioaddr, 0, 2);
-
- if (lp->switch_sig == ICPLUS_PHY_ID) {
- r6040_phy_write(ioaddr, 29, 31, 0x175C); /* Enable registers */
- lp->phy_mode = 0x8000;
- } else {
- /* PHY Mode Check */
- r6040_phy_write(ioaddr, lp->phy_addr, 4, PHY_CAP);
- r6040_phy_write(ioaddr, lp->phy_addr, 0, PHY_MODE);
-
- if (PHY_MODE == 0x3100)
- lp->phy_mode = r6040_phy_mode_chk(dev);
- else
- lp->phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
- }
-
- /* Set duplex mode */
- lp->mcr0 |= lp->phy_mode;
-
/* improve performance (by RDC guys) */
r6040_phy_write(ioaddr, 30, 17, (r6040_phy_read(ioaddr, 30, 17) | 0x4000));
r6040_phy_write(ioaddr, 30, 17, ~((~r6040_phy_read(ioaddr, 30, 17)) | 0x2000));
@@ -784,35 +721,6 @@
return 0;
}
-/*
- A periodic timer routine
- Polling PHY Chip Link Status
-*/
-static void r6040_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct r6040_private *lp = netdev_priv(dev);
- void __iomem *ioaddr = lp->base;
- u16 phy_mode;
-
- /* Polling PHY Chip Status */
- if (PHY_MODE == 0x3100)
- phy_mode = r6040_phy_mode_chk(dev);
- else
- phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
-
- if (phy_mode != lp->phy_mode) {
- lp->phy_mode = phy_mode;
- lp->mcr0 = (lp->mcr0 & 0x7fff) | phy_mode;
- iowrite16(lp->mcr0, ioaddr);
- }
-
- /* Timer active again */
- mod_timer(&lp->timer, round_jiffies(jiffies + HZ));
-
- /* Check media */
- mii_check_media(&lp->mii_if, 1, 1);
-}
/* Read/set MAC address routines */
static void r6040_mac_address(struct net_device *dev)
@@ -874,10 +782,6 @@
napi_enable(&lp->napi);
netif_start_queue(dev);
- /* set and active a timer process */
- setup_timer(&lp->timer, r6040_timer, (unsigned long) dev);
- if (lp->switch_sig != ICPLUS_PHY_ID)
- mod_timer(&lp->timer, jiffies + HZ);
return 0;
}
@@ -1020,40 +924,22 @@
static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct r6040_private *rp = netdev_priv(dev);
- int rc;
-
- spin_lock_irq(&rp->lock);
- rc = mii_ethtool_gset(&rp->mii_if, cmd);
- spin_unlock_irq(&rp->lock);
- return rc;
+ return phy_ethtool_gset(rp->phydev, cmd);
}
static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct r6040_private *rp = netdev_priv(dev);
- int rc;
-
- spin_lock_irq(&rp->lock);
- rc = mii_ethtool_sset(&rp->mii_if, cmd);
- spin_unlock_irq(&rp->lock);
- r6040_set_carrier(&rp->mii_if);
-
- return rc;
-}
-
-static u32 netdev_get_link(struct net_device *dev)
-{
- struct r6040_private *rp = netdev_priv(dev);
- return mii_link_ok(&rp->mii_if);
+ return phy_ethtool_sset(rp->phydev, cmd);
}
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_settings = netdev_get_settings,
.set_settings = netdev_set_settings,
- .get_link = netdev_get_link,
+ .get_link = ethtool_op_get_link,
};
static const struct net_device_ops r6040_netdev_ops = {
@@ -1072,6 +958,86 @@
#endif
};
+static void r6040_adjust_link(struct net_device *dev)
+{
+ struct r6040_private *lp = netdev_priv(dev);
+ struct phy_device *phydev = lp->phydev;
+ int status_changed = 0;
+ void __iomem *ioaddr = lp->base;
+
+ BUG_ON (!phydev);
+
+ if (lp->old_link != phydev->link) {
+ status_changed = 1;
+ lp->old_link = phydev->link;
+ }
+
+ /* reflect duplex change */
+ if (phydev->link && (lp->old_duplex != phydev->duplex)) {
+ lp->mcr0 |= (phydev->duplex == DUPLEX_FULL ? 0x8000 : 0);
+ iowrite16(lp->mcr0, ioaddr);
+
+ status_changed = 1;
+ lp->old_duplex = phydev->duplex;
+ }
+
+ if (status_changed) {
+ pr_info("%s: link %s", dev->name, phydev->link ?
+ "UP" : "DOWN");
+ if (phydev->link)
+ pr_cont(" - %d/%s", phydev->speed,
+ DUPLEX_FULL == phydev->duplex ? "full" : "half");
+ pr_cont("\n");
+ }
+}
+
+static int r6040_mii_probe(struct net_device *dev)
+{
+ struct r6040_private *lp = netdev_priv(dev);
+ struct phy_device *phydev = NULL;
+ int phy_addr;
+
+ 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 DRV_NAME "no PHY found\n");
+ return -ENODEV;
+ }
+
+ phydev = phy_connect(dev, dev_name(&phydev->dev), &r6040_adjust_link,
+ 0, PHY_INTERFACE_MODE_MII);
+
+ if (IS_ERR(phydev)) {
+ printk(KERN_ERR DRV_NAME "could not attach to PHY\n");
+ return PTR_ERR(phydev);
+ }
+
+ /* mask with MAC supported features */
+ phydev->supported &= (SUPPORTED_10baseT_Half
+ | SUPPORTED_10baseT_Full
+ | SUPPORTED_100baseT_Half
+ | SUPPORTED_100baseT_Full
+ | SUPPORTED_Autoneg
+ | SUPPORTED_MII
+ | SUPPORTED_TP);
+
+ phydev->advertising = phydev->supported;
+ lp->phydev = phydev;
+ lp->old_link = 0;
+ lp->old_duplex = -1;
+
+ printk(KERN_INFO "%s: attached PHY driver [%s] "
+ "(mii_bus:phy_addr=%s)\n", dev->name,
+ phydev->drv->name, dev_name(&phydev->dev));
+
+ return 0;
+}
+
static int __devinit r6040_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@@ -1082,6 +1048,7 @@
static int card_idx = -1;
int bar = 0;
u16 *adrp;
+ int i;
printk("%s\n", version);
@@ -1169,7 +1136,6 @@
/* Init RDC private data */
lp->mcr0 = 0x1002;
lp->phy_addr = phy_table[card_idx];
- lp->switch_sig = 0;
/* The RDC-specific entries in the device structure. */
dev->netdev_ops = &r6040_netdev_ops;
@@ -1177,28 +1143,61 @@
dev->watchdog_timeo = TX_TIMEOUT;
netif_napi_add(dev, &lp->napi, r6040_poll, 64);
- lp->mii_if.dev = dev;
- lp->mii_if.mdio_read = r6040_mdio_read;
- lp->mii_if.mdio_write = r6040_mdio_write;
- lp->mii_if.phy_id = lp->phy_addr;
- lp->mii_if.phy_id_mask = 0x1f;
- lp->mii_if.reg_num_mask = 0x1f;
+
+ lp->mii_bus = mdiobus_alloc();
+ if (!lp->mii_bus) {
+ printk(KERN_ERR DRV_NAME ": mdiobus_alloc failed\n");
+ goto err_out_unmap;
+ }
+
+ lp->mii_bus->priv = dev;
+ lp->mii_bus->read = r6040_mdiobus_read;
+ lp->mii_bus->write = r6040_mdiobus_write;
+ lp->mii_bus->reset = r6040_mdiobus_reset;
+ lp->mii_bus->name = "r6040_eth_mii";
+ snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%x", card_idx);
+ lp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+ if (!lp->mii_bus->irq) {
+ printk(KERN_ERR DRV_NAME ": allocation failed\n");
+ goto err_out_mdio;
+ }
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ lp->mii_bus->irq[i] = PHY_POLL;
+
+ err = mdiobus_register(lp->mii_bus);
+ if (err) {
+ printk(KERN_ERR DRV_NAME ": failed to register MII bus\n");
+ goto err_out_mdio_irq;
+ }
+
+ err = r6040_mii_probe(dev);
+ if (err) {
+ printk(KERN_ERR DRV_NAME ": failed to probe MII bus\n");
+ goto err_out_mdio_unregister;
+ }
/* Check the vendor ID on the PHY, if 0xffff assume none attached */
if (r6040_phy_read(ioaddr, lp->phy_addr, 2) == 0xffff) {
printk(KERN_ERR DRV_NAME ": Failed to detect an attached PHY\n");
err = -ENODEV;
- goto err_out_unmap;
+ goto err_out_mdio_unregister;
}
/* Register net device. After this dev->name assign */
err = register_netdev(dev);
if (err) {
printk(KERN_ERR DRV_NAME ": Failed to register net device\n");
- goto err_out_unmap;
+ goto err_out_mdio_unregister;
}
return 0;
+err_out_mdio_unregister:
+ mdiobus_unregister(lp->mii_bus);
+err_out_mdio_irq:
+ kfree(lp->mii_bus->irq);
+err_out_mdio:
+ mdiobus_free(lp->mii_bus);
err_out_unmap:
pci_iounmap(pdev, ioaddr);
err_out_free_res:
@@ -1212,8 +1211,12 @@
static void __devexit r6040_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
+ struct r6040_private *lp = netdev_priv(dev);
unregister_netdev(dev);
+ mdiobus_unregister(lp->mii_bus);
+ kfree(lp->mii_bus->irq);
+ mdiobus_free(lp->mii_bus);
pci_release_regions(pdev);
free_netdev(dev);
pci_disable_device(pdev);

4
target/linux/rdc/profiles/ar525w.mk
View file

@ -6,7 +6,7 @@
#
define Profile/ar525w
NAME:=Airlink AR525W
PACKAGES:=kmod-rt61-pci
NAME:=Airlink AR525W
PACKAGES:=kmod-rt61-pci kmod-switch-ip175c
endef
$(eval $(call Profile,ar525w))