/* * drivers/net/phy/cicada.c * * Driver for Cicada PHYs * * Author: Andy Fleming * * Copyright (c) 2004 Freescale Semiconductor, Inc. * * 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/kernel.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/unistd.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/spinlock.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/mii.h> #include <linux/ethtool.h> #include <linux/phy.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/uaccess.h> /* Cicada Extended Control Register 1 */ #define MII_CIS8201_EXT_CON1 0x17 #define MII_CIS8201_EXTCON1_INIT 0x0000 /* Cicada Interrupt Mask Register */ #define MII_CIS8201_IMASK 0x19 #define MII_CIS8201_IMASK_IEN 0x8000 #define MII_CIS8201_IMASK_SPEED 0x4000 #define MII_CIS8201_IMASK_LINK 0x2000 #define MII_CIS8201_IMASK_DUPLEX 0x1000 #define MII_CIS8201_IMASK_MASK 0xf000 /* Cicada Interrupt Status Register */ #define MII_CIS8201_ISTAT 0x1a #define MII_CIS8201_ISTAT_STATUS 0x8000 #define MII_CIS8201_ISTAT_SPEED 0x4000 #define MII_CIS8201_ISTAT_LINK 0x2000 #define MII_CIS8201_ISTAT_DUPLEX 0x1000 /* Cicada Auxiliary Control/Status Register */ #define MII_CIS8201_AUX_CONSTAT 0x1c #define MII_CIS8201_AUXCONSTAT_INIT 0x0004 #define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020 #define MII_CIS8201_AUXCONSTAT_SPEED 0x0018 #define MII_CIS8201_AUXCONSTAT_GBIT 0x0010 #define MII_CIS8201_AUXCONSTAT_100 0x0008 MODULE_DESCRIPTION("Cicadia PHY driver"); MODULE_AUTHOR("Andy Fleming"); MODULE_LICENSE("GPL"); static int cis820x_config_init(struct phy_device *phydev) { int err; err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT, MII_CIS8201_AUXCONSTAT_INIT); if (err < 0) return err; err = phy_write(phydev, MII_CIS8201_EXT_CON1, MII_CIS8201_EXTCON1_INIT); return err; } static int cis820x_ack_interrupt(struct phy_device *phydev) { int err = phy_read(phydev, MII_CIS8201_ISTAT); return (err < 0) ? err : 0; } static int cis820x_config_intr(struct phy_device *phydev) { int err; if(phydev->interrupts == PHY_INTERRUPT_ENABLED) err = phy_write(phydev, MII_CIS8201_IMASK, MII_CIS8201_IMASK_MASK); else err = phy_write(phydev, MII_CIS8201_IMASK, 0); return err; } /* Cicada 8201, a.k.a Vitesse VSC8201 */ static struct phy_driver cis8201_driver = { .phy_id = 0x000fc410, .name = "Cicada Cis8201", .phy_id_mask = 0x000ffff0, .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .config_init = &cis820x_config_init, .config_aneg = &genphy_config_aneg, .read_status = &genphy_read_status, .ack_interrupt = &cis820x_ack_interrupt, .config_intr = &cis820x_config_intr, .driver = { .owner = THIS_MODULE,}, }; /* Cicada 8204 */ static struct phy_driver cis8204_driver = { .phy_id = 0x000fc440, .name = "Cicada Cis8204", .phy_id_mask = 0x000fffc0, .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .config_init = &cis820x_config_init, .config_aneg = &genphy_config_aneg, .read_status = &genphy_read_status, .ack_interrupt = &cis820x_ack_interrupt, .config_intr = &cis820x_config_intr, .driver = { .owner = THIS_MODULE,}, }; static int __init cicada_init(void) { int ret; ret = phy_driver_register(&cis8204_driver); if (ret) goto err1; ret = phy_driver_register(&cis8201_driver); if (ret) goto err2; return 0; err2: phy_driver_unregister(&cis8204_driver); err1: return ret; } static void __exit cicada_exit(void) { phy_driver_unregister(&cis8204_driver); phy_driver_unregister(&cis8201_driver); } module_init(cicada_init); module_exit(cicada_exit); static struct mdio_device_id __maybe_unused cicada_tbl[] = { { 0x000fc410, 0x000ffff0 }, { 0x000fc440, 0x000fffc0 }, { } }; MODULE_DEVICE_TABLE(mdio, cicada_tbl);