| /* |
| * 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 <linux/module.h> |
| #include <linux/phy.h> |
| |
| #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 <mbizon@freebox.fr>"); |
| 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; |
| return phy_write(phydev, MII_BCM63XX_IR, reg); |
| } |
| |
| 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_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 | PHY_IS_INTERNAL, |
| .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 */ |
| .phy_id = 0x002bdc00, |
| .phy_id_mask = 0xfffffc00, |
| .name = "Broadcom BCM63XX (2)", |
| .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), |
| .flags = PHY_HAS_INTERRUPT | PHY_IS_INTERNAL, |
| .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) |
| { |
| return phy_drivers_register(bcm63xx_driver, |
| ARRAY_SIZE(bcm63xx_driver)); |
| } |
| |
| static void __exit bcm63xx_phy_exit(void) |
| { |
| phy_drivers_unregister(bcm63xx_driver, |
| ARRAY_SIZE(bcm63xx_driver)); |
| } |
| |
| module_init(bcm63xx_phy_init); |
| module_exit(bcm63xx_phy_exit); |
| |
| static struct mdio_device_id __maybe_unused bcm63xx_tbl[] = { |
| { 0x00406000, 0xfffffc00 }, |
| { 0x002bdc00, 0xfffffc00 }, |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl); |