diff options
Diffstat (limited to 'drivers/net/chelsio/mv88e1xxx.c')
| -rw-r--r-- | drivers/net/chelsio/mv88e1xxx.c | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/drivers/net/chelsio/mv88e1xxx.c b/drivers/net/chelsio/mv88e1xxx.c deleted file mode 100644 index 71018a4fdf1..00000000000 --- a/drivers/net/chelsio/mv88e1xxx.c +++ /dev/null @@ -1,397 +0,0 @@ -/* $Date: 2005/10/24 23:18:13 $ $RCSfile: mv88e1xxx.c,v $ $Revision: 1.49 $ */ -#include "common.h" -#include "mv88e1xxx.h" -#include "cphy.h" -#include "elmer0.h" - -/* MV88E1XXX MDI crossover register values */ -#define CROSSOVER_MDI 0 -#define CROSSOVER_MDIX 1 -#define CROSSOVER_AUTO 3 - -#define INTR_ENABLE_MASK 0x6CA0 - -/* - * Set the bits given by 'bitval' in PHY register 'reg'. - */ -static void mdio_set_bit(struct cphy *cphy, int reg, u32 bitval) -{ - u32 val; - - (void) simple_mdio_read(cphy, reg, &val); - (void) simple_mdio_write(cphy, reg, val | bitval); -} - -/* - * Clear the bits given by 'bitval' in PHY register 'reg'. - */ -static void mdio_clear_bit(struct cphy *cphy, int reg, u32 bitval) -{ - u32 val; - - (void) simple_mdio_read(cphy, reg, &val); - (void) simple_mdio_write(cphy, reg, val & ~bitval); -} - -/* - * NAME: phy_reset - * - * DESC: Reset the given PHY's port. NOTE: This is not a global - * chip reset. - * - * PARAMS: cphy - Pointer to PHY instance data. - * - * RETURN: 0 - Successful reset. - * -1 - Timeout. - */ -static int mv88e1xxx_reset(struct cphy *cphy, int wait) -{ - u32 ctl; - int time_out = 1000; - - mdio_set_bit(cphy, MII_BMCR, BMCR_RESET); - - do { - (void) simple_mdio_read(cphy, MII_BMCR, &ctl); - ctl &= BMCR_RESET; - if (ctl) - udelay(1); - } while (ctl && --time_out); - - return ctl ? -1 : 0; -} - -static int mv88e1xxx_interrupt_enable(struct cphy *cphy) -{ - /* Enable PHY interrupts. */ - (void) simple_mdio_write(cphy, MV88E1XXX_INTERRUPT_ENABLE_REGISTER, - INTR_ENABLE_MASK); - - /* Enable Marvell interrupts through Elmer0. */ - if (t1_is_asic(cphy->adapter)) { - u32 elmer; - - t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer); - elmer |= ELMER0_GP_BIT1; - if (is_T2(cphy->adapter)) - elmer |= ELMER0_GP_BIT2 | ELMER0_GP_BIT3 | ELMER0_GP_BIT4; - t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer); - } - return 0; -} - -static int mv88e1xxx_interrupt_disable(struct cphy *cphy) -{ - /* Disable all phy interrupts. */ - (void) simple_mdio_write(cphy, MV88E1XXX_INTERRUPT_ENABLE_REGISTER, 0); - - /* Disable Marvell interrupts through Elmer0. */ - if (t1_is_asic(cphy->adapter)) { - u32 elmer; - - t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer); - elmer &= ~ELMER0_GP_BIT1; - if (is_T2(cphy->adapter)) - elmer &= ~(ELMER0_GP_BIT2|ELMER0_GP_BIT3|ELMER0_GP_BIT4); - t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer); - } - return 0; -} - -static int mv88e1xxx_interrupt_clear(struct cphy *cphy) -{ - u32 elmer; - - /* Clear PHY interrupts by reading the register. */ - (void) simple_mdio_read(cphy, - MV88E1XXX_INTERRUPT_STATUS_REGISTER, &elmer); - - /* Clear Marvell interrupts through Elmer0. */ - if (t1_is_asic(cphy->adapter)) { - t1_tpi_read(cphy->adapter, A_ELMER0_INT_CAUSE, &elmer); - elmer |= ELMER0_GP_BIT1; - if (is_T2(cphy->adapter)) - elmer |= ELMER0_GP_BIT2|ELMER0_GP_BIT3|ELMER0_GP_BIT4; - t1_tpi_write(cphy->adapter, A_ELMER0_INT_CAUSE, elmer); - } - return 0; -} - -/* - * Set the PHY speed and duplex. This also disables auto-negotiation, except - * for 1Gb/s, where auto-negotiation is mandatory. - */ -static int mv88e1xxx_set_speed_duplex(struct cphy *phy, int speed, int duplex) -{ - u32 ctl; - - (void) simple_mdio_read(phy, MII_BMCR, &ctl); - if (speed >= 0) { - ctl &= ~(BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE); - if (speed == SPEED_100) - ctl |= BMCR_SPEED100; - else if (speed == SPEED_1000) - ctl |= BMCR_SPEED1000; - } - if (duplex >= 0) { - ctl &= ~(BMCR_FULLDPLX | BMCR_ANENABLE); - if (duplex == DUPLEX_FULL) - ctl |= BMCR_FULLDPLX; - } - if (ctl & BMCR_SPEED1000) /* auto-negotiation required for 1Gb/s */ - ctl |= BMCR_ANENABLE; - (void) simple_mdio_write(phy, MII_BMCR, ctl); - return 0; -} - -static int mv88e1xxx_crossover_set(struct cphy *cphy, int crossover) -{ - u32 data32; - - (void) simple_mdio_read(cphy, - MV88E1XXX_SPECIFIC_CNTRL_REGISTER, &data32); - data32 &= ~V_PSCR_MDI_XOVER_MODE(M_PSCR_MDI_XOVER_MODE); - data32 |= V_PSCR_MDI_XOVER_MODE(crossover); - (void) simple_mdio_write(cphy, - MV88E1XXX_SPECIFIC_CNTRL_REGISTER, data32); - return 0; -} - -static int mv88e1xxx_autoneg_enable(struct cphy *cphy) -{ - u32 ctl; - - (void) mv88e1xxx_crossover_set(cphy, CROSSOVER_AUTO); - - (void) simple_mdio_read(cphy, MII_BMCR, &ctl); - /* restart autoneg for change to take effect */ - ctl |= BMCR_ANENABLE | BMCR_ANRESTART; - (void) simple_mdio_write(cphy, MII_BMCR, ctl); - return 0; -} - -static int mv88e1xxx_autoneg_disable(struct cphy *cphy) -{ - u32 ctl; - - /* - * Crossover *must* be set to manual in order to disable auto-neg. - * The Alaska FAQs document highlights this point. - */ - (void) mv88e1xxx_crossover_set(cphy, CROSSOVER_MDI); - - /* - * Must include autoneg reset when disabling auto-neg. This - * is described in the Alaska FAQ document. - */ - (void) simple_mdio_read(cphy, MII_BMCR, &ctl); - ctl &= ~BMCR_ANENABLE; - (void) simple_mdio_write(cphy, MII_BMCR, ctl | BMCR_ANRESTART); - return 0; -} - -static int mv88e1xxx_autoneg_restart(struct cphy *cphy) -{ - mdio_set_bit(cphy, MII_BMCR, BMCR_ANRESTART); - return 0; -} - -static int mv88e1xxx_advertise(struct cphy *phy, unsigned int advertise_map) -{ - u32 val = 0; - - if (advertise_map & - (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) { - (void) simple_mdio_read(phy, MII_GBCR, &val); - val &= ~(GBCR_ADV_1000HALF | GBCR_ADV_1000FULL); - if (advertise_map & ADVERTISED_1000baseT_Half) - val |= GBCR_ADV_1000HALF; - if (advertise_map & ADVERTISED_1000baseT_Full) - val |= GBCR_ADV_1000FULL; - } - (void) simple_mdio_write(phy, MII_GBCR, val); - - val = 1; - if (advertise_map & ADVERTISED_10baseT_Half) - val |= ADVERTISE_10HALF; - if (advertise_map & ADVERTISED_10baseT_Full) - val |= ADVERTISE_10FULL; - if (advertise_map & ADVERTISED_100baseT_Half) - val |= ADVERTISE_100HALF; - if (advertise_map & ADVERTISED_100baseT_Full) - val |= ADVERTISE_100FULL; - if (advertise_map & ADVERTISED_PAUSE) - val |= ADVERTISE_PAUSE; - if (advertise_map & ADVERTISED_ASYM_PAUSE) - val |= ADVERTISE_PAUSE_ASYM; - (void) simple_mdio_write(phy, MII_ADVERTISE, val); - return 0; -} - -static int mv88e1xxx_set_loopback(struct cphy *cphy, int on) -{ - if (on) - mdio_set_bit(cphy, MII_BMCR, BMCR_LOOPBACK); - else - mdio_clear_bit(cphy, MII_BMCR, BMCR_LOOPBACK); - return 0; -} - -static int mv88e1xxx_get_link_status(struct cphy *cphy, int *link_ok, - int *speed, int *duplex, int *fc) -{ - u32 status; - int sp = -1, dplx = -1, pause = 0; - - (void) simple_mdio_read(cphy, - MV88E1XXX_SPECIFIC_STATUS_REGISTER, &status); - if ((status & V_PSSR_STATUS_RESOLVED) != 0) { - if (status & V_PSSR_RX_PAUSE) - pause |= PAUSE_RX; - if (status & V_PSSR_TX_PAUSE) - pause |= PAUSE_TX; - dplx = (status & V_PSSR_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; - sp = G_PSSR_SPEED(status); - if (sp == 0) - sp = SPEED_10; - else if (sp == 1) - sp = SPEED_100; - else - sp = SPEED_1000; - } - if (link_ok) - *link_ok = (status & V_PSSR_LINK) != 0; - if (speed) - *speed = sp; - if (duplex) - *duplex = dplx; - if (fc) - *fc = pause; - return 0; -} - -static int mv88e1xxx_downshift_set(struct cphy *cphy, int downshift_enable) -{ - u32 val; - - (void) simple_mdio_read(cphy, - MV88E1XXX_EXT_PHY_SPECIFIC_CNTRL_REGISTER, &val); - - /* - * Set the downshift counter to 2 so we try to establish Gb link - * twice before downshifting. - */ - val &= ~(V_DOWNSHIFT_ENABLE | V_DOWNSHIFT_CNT(M_DOWNSHIFT_CNT)); - - if (downshift_enable) - val |= V_DOWNSHIFT_ENABLE | V_DOWNSHIFT_CNT(2); - (void) simple_mdio_write(cphy, - MV88E1XXX_EXT_PHY_SPECIFIC_CNTRL_REGISTER, val); - return 0; -} - -static int mv88e1xxx_interrupt_handler(struct cphy *cphy) -{ - int cphy_cause = 0; - u32 status; - - /* - * Loop until cause reads zero. Need to handle bouncing interrupts. - */ - while (1) { - u32 cause; - - (void) simple_mdio_read(cphy, - MV88E1XXX_INTERRUPT_STATUS_REGISTER, - &cause); - cause &= INTR_ENABLE_MASK; - if (!cause) - break; - - if (cause & MV88E1XXX_INTR_LINK_CHNG) { - (void) simple_mdio_read(cphy, - MV88E1XXX_SPECIFIC_STATUS_REGISTER, &status); - - if (status & MV88E1XXX_INTR_LINK_CHNG) - cphy->state |= PHY_LINK_UP; - else { - cphy->state &= ~PHY_LINK_UP; - if (cphy->state & PHY_AUTONEG_EN) - cphy->state &= ~PHY_AUTONEG_RDY; - cphy_cause |= cphy_cause_link_change; - } - } - - if (cause & MV88E1XXX_INTR_AUTONEG_DONE) - cphy->state |= PHY_AUTONEG_RDY; - - if ((cphy->state & (PHY_LINK_UP | PHY_AUTONEG_RDY)) == - (PHY_LINK_UP | PHY_AUTONEG_RDY)) - cphy_cause |= cphy_cause_link_change; - } - return cphy_cause; -} - -static void mv88e1xxx_destroy(struct cphy *cphy) -{ - kfree(cphy); -} - -static struct cphy_ops mv88e1xxx_ops = { - .destroy = mv88e1xxx_destroy, - .reset = mv88e1xxx_reset, - .interrupt_enable = mv88e1xxx_interrupt_enable, - .interrupt_disable = mv88e1xxx_interrupt_disable, - .interrupt_clear = mv88e1xxx_interrupt_clear, - .interrupt_handler = mv88e1xxx_interrupt_handler, - .autoneg_enable = mv88e1xxx_autoneg_enable, - .autoneg_disable = mv88e1xxx_autoneg_disable, - .autoneg_restart = mv88e1xxx_autoneg_restart, - .advertise = mv88e1xxx_advertise, - .set_loopback = mv88e1xxx_set_loopback, - .set_speed_duplex = mv88e1xxx_set_speed_duplex, - .get_link_status = mv88e1xxx_get_link_status, -}; - -static struct cphy *mv88e1xxx_phy_create(struct net_device *dev, int phy_addr, - const struct mdio_ops *mdio_ops) -{ - struct adapter *adapter = netdev_priv(dev); - struct cphy *cphy = kzalloc(sizeof(*cphy), GFP_KERNEL); - - if (!cphy) - return NULL; - - cphy_init(cphy, dev, phy_addr, &mv88e1xxx_ops, mdio_ops); - - /* Configure particular PHY's to run in a different mode. */ - if ((board_info(adapter)->caps & SUPPORTED_TP) && - board_info(adapter)->chip_phy == CHBT_PHY_88E1111) { - /* - * Configure the PHY transmitter as class A to reduce EMI. - */ - (void) simple_mdio_write(cphy, - MV88E1XXX_EXTENDED_ADDR_REGISTER, 0xB); - (void) simple_mdio_write(cphy, - MV88E1XXX_EXTENDED_REGISTER, 0x8004); - } - (void) mv88e1xxx_downshift_set(cphy, 1); /* Enable downshift */ - - /* LED */ - if (is_T2(adapter)) { - (void) simple_mdio_write(cphy, - MV88E1XXX_LED_CONTROL_REGISTER, 0x1); - } - - return cphy; -} - -static int mv88e1xxx_phy_reset(adapter_t* adapter) -{ - return 0; -} - -const struct gphy t1_mv88e1xxx_ops = { - .create = mv88e1xxx_phy_create, - .reset = mv88e1xxx_phy_reset -}; |