--- /dev/null
+/*
+ * Generic PHY Management code
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ * author Andy Fleming
+ *
+ * Based loosely off of Linux's PHY Lib
+ */
+
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <command.h>
+#include <miiphy.h>
+#include <phy.h>
+#include <errno.h>
+#include <linux/err.h>
+#include <linux/compiler.h>
+
+/* Generic PHY support and helper functions */
+
+/**
+ * genphy_config_advert - sanitize and advertise auto-negotation parameters
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MII_ADVERTISE with the appropriate values,
+ * after sanitizing the values to make sure we only advertise
+ * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
+ * hasn't changed, and > 0 if it has changed.
+ */
+static int genphy_config_advert(struct phy_device *phydev)
+{
+ u32 advertise;
+ int oldadv, adv;
+ int err, changed = 0;
+
+ /* Only allow advertising what
+ * this PHY supports */
+ phydev->advertising &= phydev->supported;
+ advertise = phydev->advertising;
+
+ /* Setup standard advertisement */
+ oldadv = adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
+
+ if (adv < 0)
+ return adv;
+
+ adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_PAUSE_ASYM);
+ 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;
+ if (advertise & ADVERTISED_Pause)
+ adv |= ADVERTISE_PAUSE_CAP;
+ if (advertise & ADVERTISED_Asym_Pause)
+ adv |= ADVERTISE_PAUSE_ASYM;
+ if (advertise & ADVERTISED_1000baseX_Half)
+ adv |= ADVERTISE_1000XHALF;
+ if (advertise & ADVERTISED_1000baseX_Full)
+ adv |= ADVERTISE_1000XFULL;
+
+ if (adv != oldadv) {
+ err = phy_write(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE, adv);
+
+ if (err < 0)
+ return err;
+ changed = 1;
+ }
+
+ /* Configure gigabit if it's supported */
+ if (phydev->supported & (SUPPORTED_1000baseT_Half |
+ SUPPORTED_1000baseT_Full)) {
+ oldadv = adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
+
+ if (adv < 0)
+ return adv;
+
+ adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+ if (advertise & SUPPORTED_1000baseT_Half)
+ adv |= ADVERTISE_1000HALF;
+ if (advertise & SUPPORTED_1000baseT_Full)
+ adv |= ADVERTISE_1000FULL;
+
+ if (adv != oldadv) {
+ err = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000,
+ adv);
+
+ if (err < 0)
+ return err;
+ changed = 1;
+ }
+ }
+
+ return changed;
+}
+
+
+/**
+ * genphy_setup_forced - configures/forces speed/duplex from @phydev
+ * @phydev: target phy_device struct
+ *
+ * Description: Configures MII_BMCR to force speed/duplex
+ * to the values in phydev. Assumes that the values are valid.
+ */
+static int genphy_setup_forced(struct phy_device *phydev)
+{
+ int err;
+ int ctl = 0;
+
+ phydev->pause = phydev->asym_pause = 0;
+
+ if (SPEED_1000 == phydev->speed)
+ ctl |= BMCR_SPEED1000;
+ else if (SPEED_100 == phydev->speed)
+ ctl |= BMCR_SPEED100;
+
+ if (DUPLEX_FULL == phydev->duplex)
+ ctl |= BMCR_FULLDPLX;
+
+ err = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
+
+ return err;
+}
+
+
+/**
+ * genphy_restart_aneg - Enable and Restart Autonegotiation
+ * @phydev: target phy_device struct
+ */
+int genphy_restart_aneg(struct phy_device *phydev)
+{
+ int ctl;
+
+ ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
+
+ if (ctl < 0)
+ return ctl;
+
+ ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
+
+ /* Don't isolate the PHY if we're negotiating */
+ ctl &= ~(BMCR_ISOLATE);
+
+ ctl = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
+
+ return ctl;
+}
+
+
+/**
+ * genphy_config_aneg - restart auto-negotiation or write BMCR
+ * @phydev: target phy_device struct
+ *
+ * Description: If auto-negotiation is enabled, we configure the
+ * advertising, and then restart auto-negotiation. If it is not
+ * enabled, then we write the BMCR.
+ */
+int genphy_config_aneg(struct phy_device *phydev)
+{
+ int result;
+
+ if (AUTONEG_ENABLE != phydev->autoneg)
+ return genphy_setup_forced(phydev);
+
+ result = genphy_config_advert(phydev);
+
+ if (result < 0) /* error */
+ return result;
+
+ if (result == 0) {
+ /* Advertisment hasn't changed, but maybe aneg was never on to
+ * begin with? Or maybe phy was isolated? */
+ int ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
+
+ if (ctl < 0)
+ return ctl;
+
+ if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
+ result = 1; /* do restart aneg */
+ }
+
+ /* Only restart aneg if we are advertising something different
+ * than we were before. */
+ if (result > 0)
+ result = genphy_restart_aneg(phydev);
+
+ return result;
+}
+
+/**
+ * genphy_update_link - update link status in @phydev
+ * @phydev: target phy_device struct
+ *
+ * Description: Update the value in phydev->link to reflect the
+ * current link value. In order to do this, we need to read
+ * the status register twice, keeping the second value.
+ */
+int genphy_update_link(struct phy_device *phydev)
+{
+ unsigned int mii_reg;
+
+ /*
+ * Wait if the link is up, and autonegotiation is in progress
+ * (ie - we're capable and it's not done)
+ */
+ mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
+
+ /*
+ * If we already saw the link up, and it hasn't gone down, then
+ * we don't need to wait for autoneg again
+ */
+ if (phydev->link && mii_reg & BMSR_LSTATUS)
+ return 0;
+
+ if ((mii_reg & BMSR_ANEGCAPABLE) && !(mii_reg & BMSR_ANEGCOMPLETE)) {
+ int i = 0;
+
+ printf("%s Waiting for PHY auto negotiation to complete",
+ phydev->dev->name);
+ while (!(mii_reg & BMSR_ANEGCOMPLETE)) {
+ /*
+ * Timeout reached ?
+ */
+ if (i > PHY_ANEG_TIMEOUT) {
+ printf(" TIMEOUT !\n");
+ phydev->link = 0;
+ return 0;
+ }
+
+ if (ctrlc()) {
+ puts("user interrupt!\n");
+ phydev->link = 0;
+ return -EINTR;
+ }
+
+ if ((i++ % 500) == 0)
+ printf(".");
+
+ udelay(1000); /* 1 ms */
+ mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
+ }
+ printf(" done\n");
+ phydev->link = 1;
+ } else {
+ /* Read the link a second time to clear the latched state */
+ mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
+
+ if (mii_reg & BMSR_LSTATUS)
+ phydev->link = 1;
+ else
+ phydev->link = 0;
+ }
+
+ return 0;
+}
+
+/*
+ * Generic function which updates the speed and duplex. If
+ * autonegotiation is enabled, it uses the AND of the link
+ * partner's advertised capabilities and our advertised
+ * capabilities. If autonegotiation is disabled, we use the
+ * appropriate bits in the control register.
+ *
+ * Stolen from Linux's mii.c and phy_device.c
+ */
+int genphy_parse_link(struct phy_device *phydev)
+{
+ int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
+
+ /* We're using autonegotiation */
+ if (phydev->supported & SUPPORTED_Autoneg) {
+ u32 lpa = 0;
+ int gblpa = 0;
+ u32 estatus = 0;
+
+ /* Check for gigabit capability */
+ if (phydev->supported & (SUPPORTED_1000baseT_Full |
+ SUPPORTED_1000baseT_Half)) {
+ /* We want a list of states supported by
+ * both PHYs in the link
+ */
+ gblpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_STAT1000);
+ if (gblpa < 0) {
+ debug("Could not read MII_STAT1000. Ignoring gigabit capability\n");
+ gblpa = 0;
+ }
+ gblpa &= phy_read(phydev,
+ MDIO_DEVAD_NONE, MII_CTRL1000) << 2;
+ }
+
+ /* Set the baseline so we only have to set them
+ * if they're different
+ */
+ phydev->speed = SPEED_10;
+ phydev->duplex = DUPLEX_HALF;
+
+ /* Check the gigabit fields */
+ if (gblpa & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) {
+ phydev->speed = SPEED_1000;
+
+ if (gblpa & PHY_1000BTSR_1000FD)
+ phydev->duplex = DUPLEX_FULL;
+
+ /* We're done! */
+ return 0;
+ }
+
+ lpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
+ lpa &= phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA);
+
+ if (lpa & (LPA_100FULL | LPA_100HALF)) {
+ phydev->speed = SPEED_100;
+
+ if (lpa & LPA_100FULL)
+ phydev->duplex = DUPLEX_FULL;
+
+ } else if (lpa & LPA_10FULL)
+ phydev->duplex = DUPLEX_FULL;
+
+ /*
+ * Extended status may indicate that the PHY supports
+ * 1000BASE-T/X even though the 1000BASE-T registers
+ * are missing. In this case we can't tell whether the
+ * peer also supports it, so we only check extended
+ * status if the 1000BASE-T registers are actually
+ * missing.
+ */
+ if ((mii_reg & BMSR_ESTATEN) && !(mii_reg & BMSR_ERCAP))
+ estatus = phy_read(phydev, MDIO_DEVAD_NONE,
+ MII_ESTATUS);
+
+ if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_XHALF |
+ ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) {
+ phydev->speed = SPEED_1000;
+ if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_TFULL))
+ phydev->duplex = DUPLEX_FULL;
+ }
+
+ } else {
+ u32 bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
+
+ phydev->speed = SPEED_10;
+ phydev->duplex = DUPLEX_HALF;
+
+ if (bmcr & BMCR_FULLDPLX)
+ phydev->duplex = DUPLEX_FULL;
+
+ if (bmcr & BMCR_SPEED1000)
+ phydev->speed = SPEED_1000;
+ else if (bmcr & BMCR_SPEED100)
+ phydev->speed = SPEED_100;
+ }
+
+ return 0;
+}
+
+int genphy_config(struct phy_device *phydev)
+{
+ int val;
+ u32 features;
+
+ /* For now, I'll claim that the generic driver supports
+ * all possible port types */
+ features = (SUPPORTED_TP | SUPPORTED_MII
+ | SUPPORTED_AUI | SUPPORTED_FIBRE |
+ SUPPORTED_BNC);
+
+ /* Do we support autonegotiation? */
+ val = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
+
+ if (val < 0)
+ return val;
+
+ if (val & BMSR_ANEGCAPABLE)
+ features |= SUPPORTED_Autoneg;
+
+ if (val & BMSR_100FULL)
+ features |= SUPPORTED_100baseT_Full;
+ if (val & BMSR_100HALF)
+ features |= SUPPORTED_100baseT_Half;
+ if (val & BMSR_10FULL)
+ features |= SUPPORTED_10baseT_Full;
+ if (val & BMSR_10HALF)
+ features |= SUPPORTED_10baseT_Half;
+
+ if (val & BMSR_ESTATEN) {
+ val = phy_read(phydev, MDIO_DEVAD_NONE, MII_ESTATUS);
+
+ if (val < 0)
+ return val;
+
+ if (val & ESTATUS_1000_TFULL)
+ features |= SUPPORTED_1000baseT_Full;
+ if (val & ESTATUS_1000_THALF)
+ features |= SUPPORTED_1000baseT_Half;
+ if (val & ESTATUS_1000_XFULL)
+ features |= SUPPORTED_1000baseX_Full;
+ if (val & ESTATUS_1000_XHALF)
+ features |= SUPPORTED_1000baseX_Half;
+ }
+
+ phydev->supported = features;
+ phydev->advertising = features;
+
+ genphy_config_aneg(phydev);
+
+ return 0;
+}
+
+int genphy_startup(struct phy_device *phydev)
+{
+ genphy_update_link(phydev);
+ genphy_parse_link(phydev);
+
+ return 0;
+}
+
+int genphy_shutdown(struct phy_device *phydev)
+{
+ return 0;
+}
+
+static struct phy_driver genphy_driver = {
+ .uid = 0xffffffff,
+ .mask = 0xffffffff,
+ .name = "Generic PHY",
+ .features = 0,
+ .config = genphy_config,
+ .startup = genphy_startup,
+ .shutdown = genphy_shutdown,
+};
+
+static LIST_HEAD(phy_drivers);
+
+int phy_init(void)
+{
+#ifdef CONFIG_PHY_ATHEROS
+ phy_atheros_init();
+#endif
+#ifdef CONFIG_PHY_BROADCOM
+ phy_broadcom_init();
+#endif
+#ifdef CONFIG_PHY_DAVICOM
+ phy_davicom_init();
+#endif
+#ifdef CONFIG_PHY_ET1011C
+ phy_et1011c_init();
+#endif
+#ifdef CONFIG_PHY_ICPLUS
+ phy_icplus_init();
+#endif
+#ifdef CONFIG_PHY_LXT
+ phy_lxt_init();
+#endif
+#ifdef CONFIG_PHY_MARVELL
+ phy_marvell_init();
+#endif
+#ifdef CONFIG_PHY_MICREL
+ phy_micrel_init();
+#endif
+#ifdef CONFIG_PHY_NATSEMI
+ phy_natsemi_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
+#ifdef CONFIG_PHY_VITESSE
+ phy_vitesse_init();
+#endif
+
+ return 0;
+}
+
+int phy_register(struct phy_driver *drv)
+{
+ INIT_LIST_HEAD(&drv->list);
+ list_add_tail(&drv->list, &phy_drivers);
+
+ return 0;
+}
+
+static int phy_probe(struct phy_device *phydev)
+{
+ int err = 0;
+
+ phydev->advertising = phydev->supported = phydev->drv->features;
+ phydev->mmds = phydev->drv->mmds;
+
+ if (phydev->drv->probe)
+ err = phydev->drv->probe(phydev);
+
+ return err;
+}
+
+static struct phy_driver *generic_for_interface(phy_interface_t interface)
+{
+#ifdef CONFIG_PHYLIB_10G
+ if (is_10g_interface(interface))
+ return &gen10g_driver;
+#endif
+
+ return &genphy_driver;
+}
+
+static struct phy_driver *get_phy_driver(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ struct list_head *entry;
+ int phy_id = phydev->phy_id;
+ struct phy_driver *drv = NULL;
+
+ list_for_each(entry, &phy_drivers) {
+ drv = list_entry(entry, struct phy_driver, list);
+ if ((drv->uid & drv->mask) == (phy_id & drv->mask))
+ return drv;
+ }
+
+ /* If we made it here, there's no driver for this PHY */
+ return generic_for_interface(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;
+
+ /* We allocate the device, and initialize the
+ * default values */
+ dev = malloc(sizeof(*dev));
+ if (!dev) {
+ printf("Failed to allocate PHY device for %s:%d\n",
+ bus->name, addr);
+ return NULL;
+ }
+
+ memset(dev, 0, sizeof(*dev));
+
+ dev->duplex = -1;
+ dev->link = 1;
+ dev->interface = interface;
+
+ dev->autoneg = AUTONEG_ENABLE;
+
+ dev->addr = addr;
+ dev->phy_id = phy_id;
+ dev->bus = bus;
+
+ dev->drv = get_phy_driver(dev, interface);
+
+ phy_probe(dev);
+
+ bus->phymap[addr] = dev;
+
+ return dev;
+}
+
+/**
+ * get_phy_id - reads the specified addr for its ID.
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ * @phy_id: where to store the ID retrieved.
+ *
+ * Description: Reads the ID registers of the PHY at @addr on the
+ * @bus, stores it in @phy_id and returns zero on success.
+ */
+int __weak get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
+{
+ int phy_reg;
+
+ /* Grab the bits from PHYIR1, and put them
+ * in the upper half */
+ phy_reg = bus->read(bus, addr, devad, MII_PHYSID1);
+
+ if (phy_reg < 0)
+ return -EIO;
+
+ *phy_id = (phy_reg & 0xffff) << 16;
+
+ /* Grab the bits from PHYIR2, and put them in the lower half */
+ phy_reg = bus->read(bus, addr, devad, MII_PHYSID2);
+
+ if (phy_reg < 0)
+ return -EIO;
+
+ *phy_id |= (phy_reg & 0xffff);
+
+ return 0;
+}
+
+static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, int devad, phy_interface_t interface)
+{
+ 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 */
+ 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;
+}
+
+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 = 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 (phydev)
+ return phydev;
+ }
+ printf("Phy not found\n");
+ return phy_device_create(bus, ffs(phy_mask) - 1, 0xffffffff, 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)
+{
+ int reg;
+ int timeout = 500;
+ int devad = MDIO_DEVAD_NONE;
+
+#ifdef CONFIG_PHYLIB_10G
+ /* If it's 10G, we need to issue reset through one of the MMDs */
+ if (is_10g_interface(phydev->interface)) {
+ if (!phydev->mmds)
+ gen10g_discover_mmds(phydev);
+
+ devad = ffs(phydev->mmds) - 1;
+ }
+#endif
+
+ reg = phy_read(phydev, devad, MII_BMCR);
+ if (reg < 0) {
+ debug("PHY status read failed\n");
+ return -1;
+ }
+
+ reg |= BMCR_RESET;
+
+ if (phy_write(phydev, devad, MII_BMCR, reg) < 0) {
+ debug("PHY reset failed\n");
+ return -1;
+ }
+
+#ifdef CONFIG_PHY_RESET_DELAY
+ udelay(CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */
+#endif
+ /*
+ * Poll the control register for the reset bit to go to 0 (it is
+ * auto-clearing). This should happen within 0.5 seconds per the
+ * IEEE spec.
+ */
+ while ((reg & BMCR_RESET) && timeout--) {
+ reg = phy_read(phydev, devad, MII_BMCR);
+
+ if (reg < 0) {
+ debug("PHY status read failed\n");
+ return -1;
+ }
+ udelay(1000);
+ }
+
+ if (reg & BMCR_RESET) {
+ puts("PHY reset timed out\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int miiphy_reset(const char *devname, unsigned char addr)
+{
+ struct mii_dev *bus = miiphy_get_dev_by_name(devname);
+ struct phy_device *phydev;
+
+ /*
+ * miiphy_reset was only used on standard PHYs, so we'll fake it here.
+ * If later code tries to connect with the right interface, this will
+ * be corrected by get_phy_device in phy_connect()
+ */
+ phydev = get_phy_device(bus, addr, PHY_INTERFACE_MODE_MII);
+
+ return phy_reset(phydev);
+}
+
+struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
+ phy_interface_t interface)
+{
+ /* 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);
+}
+
+void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev)
+{
+ /* Soft Reset the PHY */
+ phy_reset(phydev);
+ if (phydev->dev) {
+ printf("%s:%d is connected to %s. Reconnecting to %s\n",
+ 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)
+ 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 board_phy_config(struct phy_device *phydev)
+ __attribute__((weak, alias("__board_phy_config")));
+
+int phy_config(struct phy_device *phydev)
+{
+ /* Invoke an optional board-specific helper */
+ board_phy_config(phydev);
+
+ return 0;
+}
+
+int phy_shutdown(struct phy_device *phydev)
+{
+ if (phydev->drv->shutdown)
+ phydev->drv->shutdown(phydev);
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff