#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/phy.h>
+#include <linux/mdio.h>
#include <linux/io.h>
#include <linux/uaccess.h>
kfree(to_phy_device(dev));
}
-static struct phy_driver genphy_driver;
+enum genphy_driver {
+ GENPHY_DRV_1G,
+ GENPHY_DRV_10G,
+ GENPHY_DRV_MAX
+};
+
+static struct phy_driver genphy_driver[GENPHY_DRV_MAX];
static LIST_HEAD(phy_fixup_list);
static DEFINE_MUTEX(phy_fixup_lock);
-static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
- u32 flags, phy_interface_t interface);
-
/**
* phy_register_fixup - creates a new phy_fixup and adds it to the list
* @bus_id: A string which matches phydev->dev.bus_id (or PHY_ANY_ID)
*
* Description: Called by drivers to attach to a particular PHY
* device. The phy_device is found, and properly hooked up
- * to the phy_driver. If no driver is attached, then the
- * genphy_driver is used. The phy_device is given a ptr to
+ * to the phy_driver. If no driver is attached, then a
+ * generic driver is used. The phy_device is given a ptr to
* the attaching device, and given a callback for link status
* change. The phy_device is returned to the attaching driver.
*/
-static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
- u32 flags, phy_interface_t interface)
+int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
+ u32 flags, phy_interface_t interface)
{
struct device *d = &phydev->dev;
int err;
* exist, and we should use the genphy driver.
*/
if (NULL == d->driver) {
- if (phydev->is_c45) {
- pr_err("No driver for phy %x\n", phydev->phy_id);
- return -ENODEV;
- }
-
- d->driver = &genphy_driver.driver;
+ if (phydev->is_c45)
+ d->driver = &genphy_driver[GENPHY_DRV_10G].driver;
+ else
+ d->driver = &genphy_driver[GENPHY_DRV_1G].driver;
err = d->driver->probe(d);
if (err >= 0)
return err;
}
+EXPORT_SYMBOL(phy_attach_direct);
/**
* phy_attach - attach a network device to a particular PHY device
*/
void phy_detach(struct phy_device *phydev)
{
+ int i;
phydev->attached_dev->phydev = NULL;
phydev->attached_dev = NULL;
phy_suspend(phydev);
* from the generic driver so that there's a chance a
* real driver could be loaded
*/
- if (phydev->dev.driver == &genphy_driver.driver)
- device_release_driver(&phydev->dev);
+ for (i = 0; i < ARRAY_SIZE(genphy_driver); i++) {
+ if (phydev->dev.driver == &genphy_driver[i].driver) {
+ device_release_driver(&phydev->dev);
+ break;
+ }
+ }
}
EXPORT_SYMBOL(phy_detach);
static int genphy_config_advert(struct phy_device *phydev)
{
u32 advertise;
- int oldadv, adv;
+ int oldadv, adv, bmsr;
int err, changed = 0;
/* Only allow advertising what this PHY supports */
changed = 1;
}
+ bmsr = phy_read(phydev, MII_BMSR);
+ if (bmsr < 0)
+ return bmsr;
+
+ /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
+ * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
+ * logical 1.
+ */
+ if (!(bmsr & BMSR_ESTATEN))
+ return changed;
+
/* Configure gigabit if it's supported */
+ adv = phy_read(phydev, MII_CTRL1000);
+ if (adv < 0)
+ return adv;
+
+ oldadv = adv;
+ adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+
if (phydev->supported & (SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full)) {
- adv = phy_read(phydev, MII_CTRL1000);
- if (adv < 0)
- return adv;
-
- oldadv = adv;
- adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
adv |= ethtool_adv_to_mii_ctrl1000_t(advertise);
-
- if (adv != oldadv) {
- err = phy_write(phydev, MII_CTRL1000, adv);
-
- if (err < 0)
- return err;
+ if (adv != oldadv)
changed = 1;
- }
}
+ err = phy_write(phydev, MII_CTRL1000, adv);
+ if (err < 0)
+ return err;
+
return changed;
}
}
EXPORT_SYMBOL(genphy_config_aneg);
+static int gen10g_config_aneg(struct phy_device *phydev)
+{
+ return 0;
+}
+
/**
* genphy_update_link - update link status in @phydev
* @phydev: target phy_device struct
}
EXPORT_SYMBOL(genphy_read_status);
+static int gen10g_read_status(struct phy_device *phydev)
+{
+ int devad, reg;
+ u32 mmd_mask = phydev->c45_ids.devices_in_package;
+
+ phydev->link = 1;
+
+ /* For now just lie and say it's 10G all the time */
+ phydev->speed = SPEED_10000;
+ phydev->duplex = DUPLEX_FULL;
+
+ for (devad = 0; mmd_mask; devad++, mmd_mask = mmd_mask >> 1) {
+ if (!(mmd_mask & 1))
+ continue;
+
+ /* Read twice because link state is latched and a
+ * read moves the current state into the register
+ */
+ phy_read_mmd(phydev, devad, MDIO_STAT1);
+ reg = phy_read_mmd(phydev, devad, MDIO_STAT1);
+ if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
+ phydev->link = 0;
+ }
+
+ return 0;
+}
+
static int genphy_config_init(struct phy_device *phydev)
{
int val;
return 0;
}
+
+static int gen10g_config_init(struct phy_device *phydev)
+{
+ /* Temporarily just say we support everything */
+ phydev->supported = SUPPORTED_10000baseT_Full;
+ phydev->advertising = SUPPORTED_10000baseT_Full;
+
+ return 0;
+}
+
int genphy_suspend(struct phy_device *phydev)
{
int value;
}
EXPORT_SYMBOL(genphy_suspend);
+static int gen10g_suspend(struct phy_device *phydev)
+{
+ return 0;
+}
+
int genphy_resume(struct phy_device *phydev)
{
int value;
}
EXPORT_SYMBOL(genphy_resume);
+static int gen10g_resume(struct phy_device *phydev)
+{
+ return 0;
+}
+
/**
* phy_probe - probe and init a PHY device
* @dev: device to probe and init
}
EXPORT_SYMBOL(phy_drivers_unregister);
-static struct phy_driver genphy_driver = {
+static struct phy_driver genphy_driver[] = {
+{
.phy_id = 0xffffffff,
.phy_id_mask = 0xffffffff,
.name = "Generic PHY",
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = { .owner = THIS_MODULE, },
-};
+}, {
+ .phy_id = 0xffffffff,
+ .phy_id_mask = 0xffffffff,
+ .name = "Generic 10G PHY",
+ .config_init = gen10g_config_init,
+ .features = 0,
+ .config_aneg = gen10g_config_aneg,
+ .read_status = gen10g_read_status,
+ .suspend = gen10g_suspend,
+ .resume = gen10g_resume,
+ .driver = {.owner = THIS_MODULE, },
+} };
static int __init phy_init(void)
{
if (rc)
return rc;
- rc = phy_driver_register(&genphy_driver);
+ rc = phy_drivers_register(genphy_driver,
+ ARRAY_SIZE(genphy_driver));
if (rc)
mdio_bus_exit();
static void __exit phy_exit(void)
{
- phy_driver_unregister(&genphy_driver);
+ phy_drivers_unregister(genphy_driver,
+ ARRAY_SIZE(genphy_driver));
mdio_bus_exit();
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff