From 09bb9aa0ed22bea814b0f137390f911af33ddd1b Mon Sep 17 00:00:00 2001 From: Maxime Bizon Date: Wed, 1 Jul 2009 01:29:36 +0000 Subject: MIPS: BCM63XX: Add integrated ethernet PHY support for phylib. Signed-off-by: Maxime Bizon Signed-off-by: Ralf Baechle drivers/net/phy/Kconfig | 6 ++ drivers/net/phy/Makefile | 1 drivers/net/phy/bcm63xx.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 139 insertions(+) create mode 100644 drivers/net/phy/bcm63xx.c Signed-off-by: David S. Miller --- drivers/net/phy/bcm63xx.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 drivers/net/phy/bcm63xx.c (limited to 'drivers/net/phy/bcm63xx.c') diff --git a/drivers/net/phy/bcm63xx.c b/drivers/net/phy/bcm63xx.c new file mode 100644 index 000000000000..4fed95e8350e --- /dev/null +++ b/drivers/net/phy/bcm63xx.c @@ -0,0 +1,132 @@ +/* + * Driver for Broadcom 63xx SOCs integrated PHYs + * + * 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. + */ +#include +#include + +#define MII_BCM63XX_IR 0x1a /* interrupt register */ +#define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */ +#define MII_BCM63XX_IR_DUPLEX 0x0800 /* duplex changed */ +#define MII_BCM63XX_IR_SPEED 0x0400 /* speed changed */ +#define MII_BCM63XX_IR_LINK 0x0200 /* link changed */ +#define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */ + +MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver"); +MODULE_AUTHOR("Maxime Bizon "); +MODULE_LICENSE("GPL"); + +static int bcm63xx_config_init(struct phy_device *phydev) +{ + int reg, err; + + reg = phy_read(phydev, MII_BCM63XX_IR); + if (reg < 0) + return reg; + + /* Mask interrupts globally. */ + reg |= MII_BCM63XX_IR_GMASK; + err = phy_write(phydev, MII_BCM63XX_IR, reg); + if (err < 0) + return err; + + /* Unmask events we are interested in */ + reg = ~(MII_BCM63XX_IR_DUPLEX | + MII_BCM63XX_IR_SPEED | + MII_BCM63XX_IR_LINK) | + MII_BCM63XX_IR_EN; + err = phy_write(phydev, MII_BCM63XX_IR, reg); + if (err < 0) + return err; + return 0; +} + +static int bcm63xx_ack_interrupt(struct phy_device *phydev) +{ + int reg; + + /* Clear pending interrupts. */ + reg = phy_read(phydev, MII_BCM63XX_IR); + if (reg < 0) + return reg; + + return 0; +} + +static int bcm63xx_config_intr(struct phy_device *phydev) +{ + int reg, err; + + reg = phy_read(phydev, MII_BCM63XX_IR); + if (reg < 0) + return reg; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + reg &= ~MII_BCM63XX_IR_GMASK; + else + reg |= MII_BCM63XX_IR_GMASK; + + err = phy_write(phydev, MII_BCM63XX_IR, reg); + return err; +} + +static struct phy_driver bcm63xx_1_driver = { + .phy_id = 0x00406000, + .phy_id_mask = 0xfffffc00, + .name = "Broadcom BCM63XX (1)", + /* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */ + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = bcm63xx_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = bcm63xx_ack_interrupt, + .config_intr = bcm63xx_config_intr, + .driver = { .owner = THIS_MODULE }, +}; + +/* same phy as above, with just a different OUI */ +static struct phy_driver bcm63xx_2_driver = { + .phy_id = 0x002bdc00, + .phy_id_mask = 0xfffffc00, + .name = "Broadcom BCM63XX (2)", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = bcm63xx_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = bcm63xx_ack_interrupt, + .config_intr = bcm63xx_config_intr, + .driver = { .owner = THIS_MODULE }, +}; + +static int __init bcm63xx_phy_init(void) +{ + int ret; + + ret = phy_driver_register(&bcm63xx_1_driver); + if (ret) + goto out_63xx_1; + ret = phy_driver_register(&bcm63xx_2_driver); + if (ret) + goto out_63xx_2; + return ret; + +out_63xx_2: + phy_driver_unregister(&bcm63xx_1_driver); +out_63xx_1: + return ret; +} + +static void __exit bcm63xx_phy_exit(void) +{ + phy_driver_unregister(&bcm63xx_1_driver); + phy_driver_unregister(&bcm63xx_2_driver); +} + +module_init(bcm63xx_phy_init); +module_exit(bcm63xx_phy_exit); -- cgit