/*
 * Common network MII address and register definitions.
 *
 * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
 *
 * Allwinner EMAC register definitions from Linux kernel are:
 *   Copyright 2012 Stefan Roese <sr@denx.de>
 *   Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
 *   Copyright 1997 Sten Wang
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 */
#ifndef MII_H
#define MII_H

/* PHY registers */
#define MII_BMCR            0  /* Basic mode control register */
#define MII_BMSR            1  /* Basic mode status register */
#define MII_PHYID1          2  /* ID register 1 */
#define MII_PHYID2          3  /* ID register 2 */
#define MII_ANAR            4  /* Autonegotiation advertisement */
#define MII_ANLPAR          5  /* Autonegotiation lnk partner abilities */
#define MII_ANER            6  /* Autonegotiation expansion */
#define MII_ANNP            7  /* Autonegotiation next page */
#define MII_ANLPRNP         8  /* Autonegotiation link partner rx next page */
#define MII_CTRL1000        9  /* 1000BASE-T control */
#define MII_STAT1000        10 /* 1000BASE-T status */
#define MII_MDDACR          13 /* MMD access control */
#define MII_MDDAADR         14 /* MMD access address data */
#define MII_EXTSTAT         15 /* Extended Status */
#define MII_NSR             16
#define MII_LBREMR          17
#define MII_REC             18
#define MII_SNRDR           19
#define MII_TEST            25

/* PHY registers fields */
#define MII_BMCR_RESET      (1 << 15)
#define MII_BMCR_LOOPBACK   (1 << 14)
#define MII_BMCR_SPEED100   (1 << 13)  /* LSB of Speed (100) */
#define MII_BMCR_SPEED      MII_BMCR_SPEED100
#define MII_BMCR_AUTOEN     (1 << 12) /* Autonegotiation enable */
#define MII_BMCR_PDOWN      (1 << 11) /* Enable low power state */
#define MII_BMCR_ISOLATE    (1 << 10) /* Isolate data paths from MII */
#define MII_BMCR_ANRESTART  (1 << 9)  /* Auto negotiation restart */
#define MII_BMCR_FD         (1 << 8)  /* Set duplex mode */
#define MII_BMCR_CTST       (1 << 7)  /* Collision test */
#define MII_BMCR_SPEED1000  (1 << 6)  /* MSB of Speed (1000) */

#define MII_BMSR_100TX_FD   (1 << 14) /* Can do 100mbps, full-duplex */
#define MII_BMSR_100TX_HD   (1 << 13) /* Can do 100mbps, half-duplex */
#define MII_BMSR_10T_FD     (1 << 12) /* Can do 10mbps, full-duplex */
#define MII_BMSR_10T_HD     (1 << 11) /* Can do 10mbps, half-duplex */
#define MII_BMSR_100T2_FD   (1 << 10) /* Can do 100mbps T2, full-duplex */
#define MII_BMSR_100T2_HD   (1 << 9)  /* Can do 100mbps T2, half-duplex */
#define MII_BMSR_EXTSTAT    (1 << 8)  /* Extended status in register 15 */
#define MII_BMSR_MFPS       (1 << 6)  /* MII Frame Preamble Suppression */
#define MII_BMSR_AN_COMP    (1 << 5)  /* Auto-negotiation complete */
#define MII_BMSR_RFAULT     (1 << 4)  /* Remote fault */
#define MII_BMSR_AUTONEG    (1 << 3)  /* Able to do auto-negotiation */
#define MII_BMSR_LINK_ST    (1 << 2)  /* Link status */
#define MII_BMSR_JABBER     (1 << 1)  /* Jabber detected */
#define MII_BMSR_EXTCAP     (1 << 0)  /* Ext-reg capability */

#define MII_ANAR_PAUSE_ASYM (1 << 11) /* Try for asymetric pause */
#define MII_ANAR_PAUSE      (1 << 10) /* Try for pause */
#define MII_ANAR_TXFD       (1 << 8)
#define MII_ANAR_TX         (1 << 7)
#define MII_ANAR_10FD       (1 << 6)
#define MII_ANAR_10         (1 << 5)
#define MII_ANAR_CSMACD     (1 << 0)

#define MII_ANLPAR_ACK      (1 << 14)
#define MII_ANLPAR_PAUSEASY (1 << 11) /* can pause asymmetrically */
#define MII_ANLPAR_PAUSE    (1 << 10) /* can pause */
#define MII_ANLPAR_TXFD     (1 << 8)
#define MII_ANLPAR_TX       (1 << 7)
#define MII_ANLPAR_10FD     (1 << 6)
#define MII_ANLPAR_10       (1 << 5)
#define MII_ANLPAR_CSMACD   (1 << 0)

#define MII_ANER_NWAY       (1 << 0) /* Can do N-way auto-nego */

#define MII_CTRL1000_FULL   (1 << 9)  /* 1000BASE-T full duplex */
#define MII_CTRL1000_HALF   (1 << 8)  /* 1000BASE-T half duplex */

#define MII_STAT1000_FULL   (1 << 11) /* 1000BASE-T full duplex */
#define MII_STAT1000_HALF   (1 << 10) /* 1000BASE-T half duplex */

/* List of vendor identifiers */
/* RealTek 8201 */
#define RTL8201CP_PHYID1    0x0000
#define RTL8201CP_PHYID2    0x8201

/* RealTek 8211E */
#define RTL8211E_PHYID1     0x001c
#define RTL8211E_PHYID2     0xc915

/* National Semiconductor DP83840 */
#define DP83840_PHYID1      0x2000
#define DP83840_PHYID2      0x5c01

/* National Semiconductor DP83848 */
#define DP83848_PHYID1      0x2000
#define DP83848_PHYID2      0x5c90

#endif /* MII_H */