1 /* 2 * Driver for Broadcom 63xx SOCs integrated PHYs 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 7 * 2 of the License, or (at your option) any later version. 8 */ 9 #include "bcm-phy-lib.h" 10 #include <linux/module.h> 11 #include <linux/phy.h> 12 13 #define MII_BCM63XX_IR 0x1a /* interrupt register */ 14 #define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */ 15 #define MII_BCM63XX_IR_DUPLEX 0x0800 /* duplex changed */ 16 #define MII_BCM63XX_IR_SPEED 0x0400 /* speed changed */ 17 #define MII_BCM63XX_IR_LINK 0x0200 /* link changed */ 18 #define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */ 19 20 MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver"); 21 MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>"); 22 MODULE_LICENSE("GPL"); 23 24 static int bcm63xx_config_init(struct phy_device *phydev) 25 { 26 int reg, err; 27 28 reg = phy_read(phydev, MII_BCM63XX_IR); 29 if (reg < 0) 30 return reg; 31 32 /* Mask interrupts globally. */ 33 reg |= MII_BCM63XX_IR_GMASK; 34 err = phy_write(phydev, MII_BCM63XX_IR, reg); 35 if (err < 0) 36 return err; 37 38 /* Unmask events we are interested in */ 39 reg = ~(MII_BCM63XX_IR_DUPLEX | 40 MII_BCM63XX_IR_SPEED | 41 MII_BCM63XX_IR_LINK) | 42 MII_BCM63XX_IR_EN; 43 return phy_write(phydev, MII_BCM63XX_IR, reg); 44 } 45 46 static struct phy_driver bcm63xx_driver[] = { 47 { 48 .phy_id = 0x00406000, 49 .phy_id_mask = 0xfffffc00, 50 .name = "Broadcom BCM63XX (1)", 51 /* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */ 52 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), 53 .flags = PHY_HAS_INTERRUPT | PHY_IS_INTERNAL, 54 .config_init = bcm63xx_config_init, 55 .config_aneg = genphy_config_aneg, 56 .read_status = genphy_read_status, 57 .ack_interrupt = bcm_phy_ack_intr, 58 .config_intr = bcm_phy_config_intr, 59 }, { 60 /* same phy as above, with just a different OUI */ 61 .phy_id = 0x002bdc00, 62 .phy_id_mask = 0xfffffc00, 63 .name = "Broadcom BCM63XX (2)", 64 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), 65 .flags = PHY_HAS_INTERRUPT | PHY_IS_INTERNAL, 66 .config_init = bcm63xx_config_init, 67 .config_aneg = genphy_config_aneg, 68 .read_status = genphy_read_status, 69 .ack_interrupt = bcm_phy_ack_intr, 70 .config_intr = bcm_phy_config_intr, 71 } }; 72 73 module_phy_driver(bcm63xx_driver); 74 75 static struct mdio_device_id __maybe_unused bcm63xx_tbl[] = { 76 { 0x00406000, 0xfffffc00 }, 77 { 0x002bdc00, 0xfffffc00 }, 78 { } 79 }; 80 81 MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl); 82