215 lines
6.3 KiB
C
215 lines
6.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2005, 2011 Freescale Semiconductor, Inc.
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*
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* Author: Shlomi Gridish <gridish@freescale.com>
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*
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* Description: UCC ethernet driver -- PHY handling
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* Driver for UEC on QE
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* Based on 8260_io/fcc_enet.c
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*/
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#ifndef __UEC_PHY_H__
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#define __UEC_PHY_H__
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#include <linux/bitops.h>
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#define MII_end ((u32)-2)
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#define MII_read ((u32)-1)
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#define MIIMIND_BUSY 0x00000001
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#define MIIMIND_NOTVALID 0x00000004
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#define UGETH_AN_TIMEOUT 2000
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/* Cicada Extended Control Register 1 */
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#define MII_CIS8201_EXT_CON1 0x17
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#define MII_CIS8201_EXTCON1_INIT 0x0000
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/* Cicada Interrupt Mask Register */
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#define MII_CIS8201_IMASK 0x19
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#define MII_CIS8201_IMASK_IEN 0x8000
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#define MII_CIS8201_IMASK_SPEED 0x4000
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#define MII_CIS8201_IMASK_LINK 0x2000
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#define MII_CIS8201_IMASK_DUPLEX 0x1000
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#define MII_CIS8201_IMASK_MASK 0xf000
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/* Cicada Interrupt Status Register */
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#define MII_CIS8201_ISTAT 0x1a
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#define MII_CIS8201_ISTAT_STATUS 0x8000
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#define MII_CIS8201_ISTAT_SPEED 0x4000
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#define MII_CIS8201_ISTAT_LINK 0x2000
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#define MII_CIS8201_ISTAT_DUPLEX 0x1000
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/* Cicada Auxiliary Control/Status Register */
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#define MII_CIS8201_AUX_CONSTAT 0x1c
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#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
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#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
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#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
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#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
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#define MII_CIS8201_AUXCONSTAT_100 0x0008
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/* 88E1011 PHY Status Register */
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#define MII_M1011_PHY_SPEC_STATUS 0x11
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#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
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#define MII_M1011_PHY_SPEC_STATUS_100 0x4000
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#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
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#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
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#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
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#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
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#define MII_M1011_IEVENT 0x13
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#define MII_M1011_IEVENT_CLEAR 0x0000
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#define MII_M1011_IMASK 0x12
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#define MII_M1011_IMASK_INIT 0x6400
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#define MII_M1011_IMASK_CLEAR 0x0000
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/* 88E1111 PHY Register */
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#define MII_M1111_PHY_EXT_CR 0x14
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#define MII_M1111_RX_DELAY 0x80
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#define MII_M1111_TX_DELAY 0x2
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#define MII_M1111_PHY_EXT_SR 0x1b
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#define MII_M1111_HWCFG_MODE_MASK 0xf
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#define MII_M1111_HWCFG_MODE_RGMII 0xb
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#define MII_DM9161_SCR 0x10
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#define MII_DM9161_SCR_INIT 0x0610
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#define MII_DM9161_SCR_RMII_INIT 0x0710
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/* DM9161 Specified Configuration and Status Register */
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#define MII_DM9161_SCSR 0x11
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#define MII_DM9161_SCSR_100F 0x8000
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#define MII_DM9161_SCSR_100H 0x4000
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#define MII_DM9161_SCSR_10F 0x2000
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#define MII_DM9161_SCSR_10H 0x1000
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/* DM9161 Interrupt Register */
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#define MII_DM9161_INTR 0x15
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#define MII_DM9161_INTR_PEND 0x8000
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#define MII_DM9161_INTR_DPLX_MASK 0x0800
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#define MII_DM9161_INTR_SPD_MASK 0x0400
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#define MII_DM9161_INTR_LINK_MASK 0x0200
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#define MII_DM9161_INTR_MASK 0x0100
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#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
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#define MII_DM9161_INTR_SPD_CHANGE 0x0008
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#define MII_DM9161_INTR_LINK_CHANGE 0x0004
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#define MII_DM9161_INTR_INIT 0x0000
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#define MII_DM9161_INTR_STOP \
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(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK | \
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MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
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/* DM9161 10BT Configuration/Status */
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#define MII_DM9161_10BTCSR 0x12
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#define MII_DM9161_10BTCSR_INIT 0x7800
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#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
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SUPPORTED_10baseT_Full | \
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SUPPORTED_100baseT_Half | \
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SUPPORTED_100baseT_Full | \
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SUPPORTED_Autoneg | \
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SUPPORTED_TP | \
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SUPPORTED_MII)
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#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
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SUPPORTED_1000baseT_Half | \
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SUPPORTED_1000baseT_Full)
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#define MII_READ_COMMAND 0x00000001
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#define MII_INTERRUPT_DISABLED 0x0
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#define MII_INTERRUPT_ENABLED 0x1
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#define SPEED_10 10
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#define SPEED_100 100
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#define SPEED_1000 1000
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/* Duplex, half or full. */
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#define DUPLEX_HALF 0x00
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#define DUPLEX_FULL 0x01
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/* Taken from mii_if_info and sungem_phy.h */
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struct uec_mii_info {
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/* Information about the PHY type */
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/* And management functions */
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struct phy_info *phyinfo;
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struct eth_device *dev;
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/* forced speed & duplex (no autoneg)
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* partner speed & duplex & pause (autoneg)
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*/
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int speed;
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int duplex;
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int pause;
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/* The most recently read link state */
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int link;
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/* Enabled Interrupts */
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u32 interrupts;
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u32 advertising;
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int autoneg;
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int mii_id;
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/* private data pointer */
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/* For use by PHYs to maintain extra state */
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void *priv;
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/* Provided by ethernet driver */
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int (*mdio_read)(struct eth_device *dev, int mii_id, int reg);
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void (*mdio_write)(struct eth_device *dev, int mii_id, int reg,
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int val);
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};
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/* struct phy_info: a structure which defines attributes for a PHY
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*
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* id will contain a number which represents the PHY. During
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* startup, the driver will poll the PHY to find out what its
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* UID--as defined by registers 2 and 3--is. The 32-bit result
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* gotten from the PHY will be ANDed with phy_id_mask to
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* discard any bits which may change based on revision numbers
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* unimportant to functionality
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*
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* There are 6 commands which take a ugeth_mii_info structure.
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* Each PHY must declare config_aneg, and read_status.
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*/
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struct phy_info {
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u32 phy_id;
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char *name;
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unsigned int phy_id_mask;
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u32 features;
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/* Called to initialize the PHY */
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int (*init)(struct uec_mii_info *mii_info);
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/* Called to suspend the PHY for power */
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int (*suspend)(struct uec_mii_info *mii_info);
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/* Reconfigures autonegotiation (or disables it) */
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int (*config_aneg)(struct uec_mii_info *mii_info);
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/* Determines the negotiated speed and duplex */
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int (*read_status)(struct uec_mii_info *mii_info);
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/* Clears any pending interrupts */
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int (*ack_interrupt)(struct uec_mii_info *mii_info);
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/* Enables or disables interrupts */
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int (*config_intr)(struct uec_mii_info *mii_info);
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/* Clears up any memory if needed */
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void (*close)(struct uec_mii_info *mii_info);
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};
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struct phy_info *uec_get_phy_info(struct uec_mii_info *mii_info);
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void uec_write_phy_reg(struct eth_device *dev, int mii_id, int regnum,
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int value);
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int uec_read_phy_reg(struct eth_device *dev, int mii_id, int regnum);
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void mii_clear_phy_interrupt(struct uec_mii_info *mii_info);
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void mii_configure_phy_interrupt(struct uec_mii_info *mii_info,
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u32 interrupts);
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void change_phy_interface_mode(struct eth_device *dev,
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phy_interface_t type, int speed);
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#endif /* __UEC_PHY_H__ */
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