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      1 /* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
      2 /*
      3  * Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
      4  */
      5 /*----------------------------------------------------------------------------+
      6 |
      7 |  File Name:	miiphy.h
      8 |
      9 |  Function:	Include file defining PHY registers.
     10 |
     11 |  Author:	Mark Wisner
     12 |
     13 +----------------------------------------------------------------------------*/
     14 #ifndef _miiphy_h_
     15 #define _miiphy_h_
     16 
     17 #include <common.h>
     18 #include <linux/mii.h>
     19 #include <linux/list.h>
     20 #include <net.h>
     21 #include <phy.h>
     22 
     23 int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
     24 		 unsigned short *value);
     25 int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
     26 		  unsigned short value);
     27 int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
     28 		 unsigned char *model, unsigned char *rev);
     29 int miiphy_reset(const char *devname, unsigned char addr);
     30 int miiphy_speed(const char *devname, unsigned char addr);
     31 int miiphy_duplex(const char *devname, unsigned char addr);
     32 int miiphy_is_1000base_x(const char *devname, unsigned char addr);
     33 #ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
     34 int miiphy_link(const char *devname, unsigned char addr);
     35 #endif
     36 
     37 void miiphy_init(void);
     38 
     39 int miiphy_set_current_dev(const char *devname);
     40 const char *miiphy_get_current_dev(void);
     41 struct mii_dev *mdio_get_current_dev(void);
     42 struct mii_dev *miiphy_get_dev_by_name(const char *devname);
     43 struct phy_device *mdio_phydev_for_ethname(const char *devname);
     44 
     45 void miiphy_listdev(void);
     46 
     47 struct mii_dev *mdio_alloc(void);
     48 void mdio_free(struct mii_dev *bus);
     49 int mdio_register(struct mii_dev *bus);
     50 
     51 /**
     52  * mdio_register_seq - Register mdio bus with sequence number
     53  * @bus: mii device structure
     54  * @seq: sequence number
     55  *
     56  * Return: 0 if success, negative value if error
     57  */
     58 int mdio_register_seq(struct mii_dev *bus, int seq);
     59 int mdio_unregister(struct mii_dev *bus);
     60 void mdio_list_devices(void);
     61 
     62 #ifdef CONFIG_BITBANGMII
     63 
     64 #define BB_MII_DEVNAME	"bb_miiphy"
     65 
     66 struct bb_miiphy_bus {
     67 	char name[16];
     68 	int (*init)(struct bb_miiphy_bus *bus);
     69 	int (*mdio_active)(struct bb_miiphy_bus *bus);
     70 	int (*mdio_tristate)(struct bb_miiphy_bus *bus);
     71 	int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
     72 	int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
     73 	int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
     74 	int (*delay)(struct bb_miiphy_bus *bus);
     75 #ifdef CONFIG_BITBANGMII_MULTI
     76 	void *priv;
     77 #endif
     78 };
     79 
     80 extern struct bb_miiphy_bus bb_miiphy_buses[];
     81 extern int bb_miiphy_buses_num;
     82 
     83 void bb_miiphy_init(void);
     84 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
     85 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
     86 		    u16 value);
     87 #endif
     88 
     89 /* phy seed setup */
     90 #define AUTO			99
     91 #define _1000BASET		1000
     92 #define _100BASET		100
     93 #define _10BASET		10
     94 #define HALF			22
     95 #define FULL			44
     96 
     97 /* phy register offsets */
     98 #define MII_MIPSCR		0x11
     99 
    100 /* MII_LPA */
    101 #define PHY_ANLPAR_PSB_802_3	0x0001
    102 #define PHY_ANLPAR_PSB_802_9	0x0002
    103 
    104 /* MII_CTRL1000 masks */
    105 #define PHY_1000BTCR_1000FD	0x0200
    106 #define PHY_1000BTCR_1000HD	0x0100
    107 
    108 /* MII_STAT1000 masks */
    109 #define PHY_1000BTSR_MSCF	0x8000
    110 #define PHY_1000BTSR_MSCR	0x4000
    111 #define PHY_1000BTSR_LRS	0x2000
    112 #define PHY_1000BTSR_RRS	0x1000
    113 #define PHY_1000BTSR_1000FD	0x0800
    114 #define PHY_1000BTSR_1000HD	0x0400
    115 
    116 /* phy EXSR */
    117 #define ESTATUS_1000XF		0x8000
    118 #define ESTATUS_1000XH		0x4000
    119 
    120 #endif
    121