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/* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
/*
* Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
*/
/*----------------------------------------------------------------------------+
|
| File Name: miiphy.h
|
| Function: Include file defining PHY registers.
|
| Author: Mark Wisner
|
+----------------------------------------------------------------------------*/
#ifndef _miiphy_h_
#define _miiphy_h_
#include <linux/mii.h>
#include <linux/list.h>
#include <net.h>
#include <phy.h>
int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
unsigned short *value);
int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
unsigned short value);
int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
unsigned char *model, unsigned char *rev);
int miiphy_reset(const char *devname, unsigned char addr);
int miiphy_speed(const char *devname, unsigned char addr);
int miiphy_duplex(const char *devname, unsigned char addr);
int miiphy_is_1000base_x(const char *devname, unsigned char addr);
#ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
int miiphy_link(const char *devname, unsigned char addr);
#endif
void miiphy_init(void);
int miiphy_set_current_dev(const char *devname);
const char *miiphy_get_current_dev(void);
struct mii_dev *mdio_get_current_dev(void);
struct list_head *mdio_get_list_head(void);
struct mii_dev *miiphy_get_dev_by_name(const char *devname);
struct phy_device *mdio_phydev_for_ethname(const char *devname);
void miiphy_listdev(void);
struct mii_dev *mdio_alloc(void);
void mdio_free(struct mii_dev *bus);
int mdio_register(struct mii_dev *bus);
/**
* mdio_register_seq - Register mdio bus with sequence number
* @bus: mii device structure
* @seq: sequence number
*
* Return: 0 if success, negative value if error
*/
int mdio_register_seq(struct mii_dev *bus, int seq);
int mdio_unregister(struct mii_dev *bus);
void mdio_list_devices(void);
#ifdef CONFIG_BITBANGMII
#define BB_MII_DEVNAME "bb_miiphy"
struct bb_miiphy_bus {
char name[16];
int (*init)(struct bb_miiphy_bus *bus);
int (*mdio_active)(struct bb_miiphy_bus *bus);
int (*mdio_tristate)(struct bb_miiphy_bus *bus);
int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
int (*delay)(struct bb_miiphy_bus *bus);
#ifdef CONFIG_BITBANGMII_MULTI
void *priv;
#endif
};
extern struct bb_miiphy_bus bb_miiphy_buses[];
extern int bb_miiphy_buses_num;
/**
* bb_miiphy_init() - Initialize bit-banged MII bus driver
*
* It is called during the generic post-relocation init sequence.
*
* Return: 0 if OK
*/
int bb_miiphy_init(void);
int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
u16 value);
#endif
/* phy seed setup */
#define AUTO 99
#define _1000BASET 1000
#define _100BASET 100
#define _10BASET 10
#define HALF 22
#define FULL 44
/* phy register offsets */
#define MII_MIPSCR 0x11
/* MII_LPA */
#define PHY_ANLPAR_PSB_802_3 0x0001
#define PHY_ANLPAR_PSB_802_9 0x0002
/* MII_CTRL1000 masks */
#define PHY_1000BTCR_1000FD 0x0200
#define PHY_1000BTCR_1000HD 0x0100
/* MII_STAT1000 masks */
#define PHY_1000BTSR_MSCF 0x8000
#define PHY_1000BTSR_MSCR 0x4000
#define PHY_1000BTSR_LRS 0x2000
#define PHY_1000BTSR_RRS 0x1000
#define PHY_1000BTSR_1000FD 0x0800
#define PHY_1000BTSR_1000HD 0x0400
/* phy EXSR */
#define ESTATUS_1000XF 0x8000
#define ESTATUS_1000XH 0x4000
/**
* struct mdio_perdev_priv - Per-device class data for MDIO DM
*
* @mii_bus: Supporting MII legacy bus
*/
struct mdio_perdev_priv {
struct mii_dev *mii_bus;
};
/**
* struct mdio_ops - MDIO bus operations
*
* @read: Read from a PHY register
* @write: Write to a PHY register
* @reset: Reset the MDIO bus, NULL if not supported
*/
struct mdio_ops {
int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
u16 val);
int (*reset)(struct udevice *mdio_dev);
};
#define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)
/**
* dm_mdio_probe_devices - Call probe on all MII devices, currently used for
* MDIO console commands.
*/
void dm_mdio_probe_devices(void);
/**
* dm_mdio_read - Wrapper over .read() operation for DM MDIO
*
* @mdiodev: mdio device
* @addr: PHY address on MDIO bus
* @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
* @reg: register address
* Return: register value if non-negative, -error code otherwise
*/
int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg);
/**
* dm_mdio_write - Wrapper over .write() operation for DM MDIO
*
* @mdiodev: mdio device
* @addr: PHY address on MDIO bus
* @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
* @reg: register address
* @val: value to write
* Return: 0 on success, -error code otherwise
*/
int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val);
/**
* dm_mdio_reset - Wrapper over .reset() operation for DM MDIO
*
* @mdiodev: mdio device
* Return: 0 on success, -error code otherwise
*/
int dm_mdio_reset(struct udevice *mdio_dev);
/**
* dm_phy_find_by_ofnode - Find PHY device by ofnode
*
* @phynode: PHY's ofnode
*
* Return: pointer to phy_device, or NULL on error
*/
struct phy_device *dm_phy_find_by_ofnode(ofnode phynode);
/**
* dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
*
* @mdiodev: mdio device the PHY is accesible on
* @phyaddr: PHY address on MDIO bus
* @ethdev: ethernet device to connect to the PHY
* @interface: MAC-PHY protocol
*
* Return: pointer to phy_device, or 0 on error
*/
struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
struct udevice *ethdev,
phy_interface_t interface);
/**
* dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
*
* Picks up the DT phy-handle and phy-mode from ethernet device node and
* connects the ethernet device to the linked PHY.
*
* @ethdev: ethernet device
*
* Return: pointer to phy_device, or 0 on error
*/
struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);
/* indicates none of the child buses is selected */
#define MDIO_MUX_SELECT_NONE -1
/**
* struct mdio_mux_ops - MDIO MUX operations
*
* @select: Selects a child bus
* @deselect: Clean up selection. Optional, can be NULL
*/
struct mdio_mux_ops {
int (*select)(struct udevice *mux, int cur, int sel);
int (*deselect)(struct udevice *mux, int sel);
};
#define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)
#endif
|
