#include <miiphy.h>
#include <phy.h>
#include <errno.h>
+#include <linux/err.h>
/* Generic PHY support and helper functions */
* what is supported. Returns < 0 on error, 0 if the PHY's advertisement
* hasn't changed, and > 0 if it has changed.
*/
-int genphy_config_advert(struct phy_device *phydev)
+static int genphy_config_advert(struct phy_device *phydev)
{
u32 advertise;
int oldadv, adv;
* Description: Configures MII_BMCR to force speed/duplex
* to the values in phydev. Assumes that the values are valid.
*/
-int genphy_setup_forced(struct phy_device *phydev)
+static int genphy_setup_forced(struct phy_device *phydev)
{
int err;
int ctl = 0;
#ifdef CONFIG_PHY_DAVICOM
phy_davicom_init();
#endif
+#ifdef CONFIG_PHY_ET1011C
+ phy_et1011c_init();
+#endif
#ifdef CONFIG_PHY_LXT
phy_lxt_init();
#endif
#ifdef CONFIG_PHY_REALTEK
phy_realtek_init();
#endif
+#ifdef CONFIG_PHY_SMSC
+ phy_smsc_init();
+#endif
#ifdef CONFIG_PHY_TERANETICS
phy_teranetics_init();
#endif
return 0;
}
-int phy_probe(struct phy_device *phydev)
+static int phy_probe(struct phy_device *phydev)
{
int err = 0;
return &genphy_driver;
}
-struct phy_driver *get_phy_driver(struct phy_device *phydev,
+static struct phy_driver *get_phy_driver(struct phy_device *phydev,
phy_interface_t interface)
{
struct list_head *entry;
return generic_for_interface(interface);
}
-struct phy_device *phy_device_create(struct mii_dev *bus, int addr, int phy_id,
- phy_interface_t interface)
+static struct phy_device *phy_device_create(struct mii_dev *bus, int addr,
+ int phy_id,
+ phy_interface_t interface)
{
struct phy_device *dev;
* Description: Reads the ID registers of the PHY at @addr on the
* @bus, stores it in @phy_id and returns zero on success.
*/
-int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
+static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
{
int phy_reg;
return 0;
}
-/**
- * get_phy_device - reads the specified PHY device and returns its @phy_device struct
- * @bus: the target MII bus
- * @addr: PHY address on the MII bus
- *
- * Description: Reads the ID registers of the PHY at @addr on the
- * @bus, then allocates and returns the phy_device to represent it.
- */
-struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
- phy_interface_t interface)
+static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, int devad, phy_interface_t interface)
{
- u32 phy_id = 0x1fffffff;
- int i;
- int r;
+ u32 phy_id = 0xffffffff;
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ int r = get_phy_id(bus, addr, devad, &phy_id);
+ if (r < 0)
+ return ERR_PTR(r);
+ /* If the PHY ID is mostly f's, we didn't find anything */
+ if ((phy_id & 0x1fffffff) != 0x1fffffff)
+ return phy_device_create(bus, addr, phy_id, interface);
+ phy_mask &= ~(1 << addr);
+ }
+ return NULL;
+}
+static struct phy_device *search_for_existing_phy(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
/* If we have one, return the existing device, with new interface */
- if (bus->phymap[addr]) {
- bus->phymap[addr]->interface = interface;
-
- return bus->phymap[addr];
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ if (bus->phymap[addr]) {
+ bus->phymap[addr]->interface = interface;
+ return bus->phymap[addr];
+ }
+ phy_mask &= ~(1 << addr);
}
+ return NULL;
+}
- /* Try Standard (ie Clause 22) access */
- r = get_phy_id(bus, addr, MDIO_DEVAD_NONE, &phy_id);
- if (r)
- return NULL;
-
- /* If the PHY ID is mostly f's, we didn't find anything */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- return phy_device_create(bus, addr, phy_id, interface);
+static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
+ int i;
+ struct phy_device *phydev;
+ phydev = search_for_existing_phy(bus, phy_mask, interface);
+ if (phydev)
+ return phydev;
+ /* Try Standard (ie Clause 22) access */
/* Otherwise we have to try Clause 45 */
- for (i = 1; i < 5; i++) {
- r = get_phy_id(bus, addr, i, &phy_id);
- if (r)
+ for (i = 0; i < 5; i++) {
+ phydev = create_phy_by_mask(bus, phy_mask,
+ i ? i : MDIO_DEVAD_NONE, interface);
+ if (IS_ERR(phydev))
return NULL;
-
- /* If the phy_id is mostly Fs, there is no device there */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- break;
+ if (phydev)
+ return phydev;
}
+ printf("Phy not found\n");
+ return phy_device_create(bus, ffs(phy_mask) - 1, 0xffffffff, interface);
+}
- return phy_device_create(bus, addr, phy_id, interface);
+/**
+ * get_phy_device - reads the specified PHY device and returns its @phy_device struct
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ *
+ * Description: Reads the ID registers of the PHY at @addr on the
+ * @bus, then allocates and returns the phy_device to represent it.
+ */
+static struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
+ phy_interface_t interface)
+{
+ return get_phy_device_by_mask(bus, 1 << addr, interface);
}
int phy_reset(struct phy_device *phydev)
return phy_reset(phydev);
}
-struct phy_device *phy_connect(struct mii_dev *bus, int addr,
- struct eth_device *dev,
- phy_interface_t interface)
+struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
+ phy_interface_t interface)
{
- struct phy_device *phydev;
-
/* Reset the bus */
if (bus->reset)
bus->reset(bus);
/* Wait 15ms to make sure the PHY has come out of hard reset */
udelay(15000);
+ return get_phy_device_by_mask(bus, phy_mask, interface);
+}
- phydev = get_phy_device(bus, addr, interface);
-
- if (!phydev) {
- printf("Could not get PHY for %s:%d\n", bus->name, addr);
-
- return NULL;
- }
-
+void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev)
+{
/* Soft Reset the PHY */
phy_reset(phydev);
-
- if (phydev->dev)
+ if (phydev->dev) {
printf("%s:%d is connected to %s. Reconnecting to %s\n",
- bus->name, addr, phydev->dev->name, dev->name);
-
+ phydev->bus->name, phydev->addr,
+ phydev->dev->name, dev->name);
+ }
phydev->dev = dev;
-
debug("%s connected to %s\n", dev->name, phydev->drv->name);
+}
+struct phy_device *phy_connect(struct mii_dev *bus, int addr,
+ struct eth_device *dev, phy_interface_t interface)
+{
+ struct phy_device *phydev;
+
+ phydev = phy_find_by_mask(bus, 1 << addr, interface);
+ if (phydev)
+ phy_connect_dev(phydev, dev);
+ else
+ printf("Could not get PHY for %s: addr %d\n", bus->name, addr);
return phydev;
}
+/*
+ * Start the PHY. Returns 0 on success, or a negative error code.
+ */
int phy_startup(struct phy_device *phydev)
{
if (phydev->drv->startup)
- phydev->drv->startup(phydev);
+ return phydev->drv->startup(phydev);
return 0;
}
static int __board_phy_config(struct phy_device *phydev)
{
+ if (phydev->drv->config)
+ return phydev->drv->config(phydev);
return 0;
}
int phy_config(struct phy_device *phydev)
{
- if (phydev->drv->config)
- phydev->drv->config(phydev);
-
/* Invoke an optional board-specific helper */
board_phy_config(phydev);
projects / karo-tx-uboot.git / blobdiff