X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fphy%2Fphy.c;h=6fe793de5daf951e6e0f6c334931d48efa843840;hb=1a4596601fd395f3afb8f82f3f840c5e00bdd57a;hp=1ffa791dceb357d2e813880732fe3350a3cbc021;hpb=6acc7c3cbc05873d62118640cf964e9c9665804c;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 1ffa791..6fe793d 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1,21 +1,7 @@ /* * Generic PHY Management code * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * + * SPDX-License-Identifier: GPL-2.0+ * * Copyright 2011 Freescale Semiconductor, Inc. * author Andy Fleming @@ -31,6 +17,7 @@ #include #include #include +#include /* Generic PHY support and helper functions */ @@ -74,6 +61,10 @@ static int genphy_config_advert(struct phy_device *phydev) 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); @@ -279,7 +270,7 @@ int genphy_update_link(struct phy_device *phydev) * * Stolen from Linux's mii.c and phy_device.c */ -static int genphy_parse_link(struct phy_device *phydev) +int genphy_parse_link(struct phy_device *phydev) { int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); @@ -287,6 +278,7 @@ static int genphy_parse_link(struct phy_device *phydev) if (mii_reg & BMSR_ANEGCAPABLE) { u32 lpa = 0; u32 gblpa = 0; + u32 estatus = 0; /* Check for gigabit capability */ if (mii_reg & BMSR_ERCAP) { @@ -326,6 +318,26 @@ static int genphy_parse_link(struct phy_device *phydev) } 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); @@ -383,6 +395,10 @@ int genphy_config(struct phy_device *phydev) 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; @@ -429,6 +445,12 @@ int phy_init(void) #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 @@ -574,6 +596,61 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id) 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 @@ -585,38 +662,7 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id) static struct phy_device *get_phy_device(struct mii_dev *bus, int addr, phy_interface_t interface) { - u32 phy_id = 0x1fffffff; - int i; - int r; - - /* If we have one, return the existing device, with new interface */ - if (bus->phymap[addr]) { - bus->phymap[addr]->interface = interface; - - return bus->phymap[addr]; - } - - /* 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); - - /* Otherwise we have to try Clause 45 */ - for (i = 1; i < 5; i++) { - r = get_phy_id(bus, addr, i, &phy_id); - if (r) - return NULL; - - /* If the phy_id is mostly Fs, there is no device there */ - if ((phy_id & 0x1fffffff) != 0x1fffffff) - break; - } - - return phy_device_create(bus, addr, phy_id, interface); + return get_phy_device_by_mask(bus, 1 << addr, interface); } int phy_reset(struct phy_device *phydev) @@ -689,38 +735,41 @@ int miiphy_reset(const char *devname, unsigned char addr) 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; }