u-boot/include/miiphy.h
Luigi 'Comio' Mantellini 4ba31ab33a Rewrite the miiphybb (Bit-banged MII bus driver) in order to support an arbitrary number of mii buses.
This feature is useful when your board uses different mii buses for different
phys and all (or a part) of these buses are implemented via bit-banging mode.

The driver requires that the following macros should be defined into the board
configuration file:

CONFIG_BITBANGMII       - Enable the miiphybb driver
CONFIG_BITBANGMII_MULTI - Enable the multi bus support

If the CONFIG_BITBANGMII_MULTI is not defined, the board's config file needs
to define at least the following macros:

MII_INIT      - Generic code to enable the MII bus (optional)
MDIO_DECLARE  - Declaration needed to access to the MDIO pin (optional)
MDIO_ACTIVE   - Activate the MDIO pin as out pin
MDIO_TRISTATE - Activate the MDIO pin as input/tristate pin
MDIO_READ     - Read the MDIO pin
MDIO(v)       - Write v on the MDIO pin
MDC_DECLARE   - Declaration needed to access to the MDC pin (optional)
MDC(v)        - Write v on the MDC pin

The previous macros make the driver compatible with the previous version
(that didn't support the multi-bus).

When the CONFIG_BITBANGMII_MULTI is also defined, the board code needs to fill
the bb_miiphy_buses[] array with a record for each required bus and declare
the bb_miiphy_buses_num variable with the number of mii buses.
The record (struct bb_miiphy_bus) has the following fields/callbacks (see
miiphy.h for details):

char name[]            - The symbolic name that must be equal to the MII bus
                         registered name
int (*init)()          - Initialization function called at startup time (just
                         before the Ethernet initialization)
int (*mdio_active)()   - Activate the MDIO pin as output
int (*mdio_tristate)() - Activate the MDIO pin as input/tristate pin
int (*set_mdio)()      - Write the MDIO pin
int (*get_mdio)()      - Read the MDIO pin
int (*set_mdc)()       - Write the MDC pin
int (*delay)()         - Delay function
void *priv             - Private data used by board specific code

The board code will look like:

struct bb_miiphy_bus bb_miiphy_buses[] = {
 { .name = miibus#1, .init = b1_init, .mdio_active = b1_mdio_active, ... },
 { .name = miibus#2, .init = b2_init, .mdio_active = b2_mdio_active, ... },
 ...
int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
                          sizeof(bb_miiphy_buses[0]);

Signed-off-by: Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2009-10-10 23:16:53 -07:00

199 lines
6 KiB
C

/*----------------------------------------------------------------------------+
| This source code is dual-licensed. You may use it under the terms of the
| GNU General Public License version 2, or under the license below.
|
| This source code has been made available to you by IBM on an AS-IS
| basis. Anyone receiving this source is licensed under IBM
| copyrights to use it in any way he or she deems fit, including
| copying it, modifying it, compiling it, and redistributing it either
| with or without modifications. No license under IBM patents or
| patent applications is to be implied by the copyright license.
|
| Any user of this software should understand that IBM cannot provide
| technical support for this software and will not be responsible for
| any consequences resulting from the use of this software.
|
| Any person who transfers this source code or any derivative work
| must include the IBM copyright notice, this paragraph, and the
| preceding two paragraphs in the transferred software.
|
| COPYRIGHT I B M CORPORATION 1999
| LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
|
| 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 <net.h>
int miiphy_read (char *devname, unsigned char addr, unsigned char reg,
unsigned short *value);
int miiphy_write (char *devname, unsigned char addr, unsigned char reg,
unsigned short value);
int miiphy_info (char *devname, unsigned char addr, unsigned int *oui,
unsigned char *model, unsigned char *rev);
int miiphy_reset (char *devname, unsigned char addr);
int miiphy_speed (char *devname, unsigned char addr);
int miiphy_duplex (char *devname, unsigned char addr);
int miiphy_is_1000base_x (char *devname, unsigned char addr);
#ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
int miiphy_link (char *devname, unsigned char addr);
#endif
void miiphy_init (void);
void miiphy_register (char *devname,
int (*read) (char *devname, unsigned char addr,
unsigned char reg, unsigned short *value),
int (*write) (char *devname, unsigned char addr,
unsigned char reg, unsigned short value));
int miiphy_set_current_dev (char *devname);
char *miiphy_get_current_dev (void);
void miiphy_listdev (void);
#ifdef CONFIG_BITBANGMII
#define BB_MII_DEVNAME "bb_miiphy"
struct bb_miiphy_bus {
char name[NAMESIZE];
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;
void bb_miiphy_init (void);
int bb_miiphy_read (char *devname, unsigned char addr,
unsigned char reg, unsigned short *value);
int bb_miiphy_write (char *devname, unsigned char addr,
unsigned char reg, unsigned short 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 PHY_BMCR 0x00
#define PHY_BMSR 0x01
#define PHY_PHYIDR1 0x02
#define PHY_PHYIDR2 0x03
#define PHY_ANAR 0x04
#define PHY_ANLPAR 0x05
#define PHY_ANER 0x06
#define PHY_ANNPTR 0x07
#define PHY_ANLPNP 0x08
#define PHY_1000BTCR 0x09
#define PHY_1000BTSR 0x0A
#define PHY_EXSR 0x0F
#define PHY_PHYSTS 0x10
#define PHY_MIPSCR 0x11
#define PHY_MIPGSR 0x12
#define PHY_DCR 0x13
#define PHY_FCSCR 0x14
#define PHY_RECR 0x15
#define PHY_PCSR 0x16
#define PHY_LBR 0x17
#define PHY_10BTSCR 0x18
#define PHY_PHYCTRL 0x19
/* PHY BMCR */
#define PHY_BMCR_RESET 0x8000
#define PHY_BMCR_LOOP 0x4000
#define PHY_BMCR_100MB 0x2000
#define PHY_BMCR_AUTON 0x1000
#define PHY_BMCR_POWD 0x0800
#define PHY_BMCR_ISO 0x0400
#define PHY_BMCR_RST_NEG 0x0200
#define PHY_BMCR_DPLX 0x0100
#define PHY_BMCR_COL_TST 0x0080
#define PHY_BMCR_SPEED_MASK 0x2040
#define PHY_BMCR_1000_MBPS 0x0040
#define PHY_BMCR_100_MBPS 0x2000
#define PHY_BMCR_10_MBPS 0x0000
/* phy BMSR */
#define PHY_BMSR_100T4 0x8000
#define PHY_BMSR_100TXF 0x4000
#define PHY_BMSR_100TXH 0x2000
#define PHY_BMSR_10TF 0x1000
#define PHY_BMSR_10TH 0x0800
#define PHY_BMSR_EXT_STAT 0x0100
#define PHY_BMSR_PRE_SUP 0x0040
#define PHY_BMSR_AUTN_COMP 0x0020
#define PHY_BMSR_RF 0x0010
#define PHY_BMSR_AUTN_ABLE 0x0008
#define PHY_BMSR_LS 0x0004
#define PHY_BMSR_JD 0x0002
#define PHY_BMSR_EXT 0x0001
/*phy ANLPAR */
#define PHY_ANLPAR_NP 0x8000
#define PHY_ANLPAR_ACK 0x4000
#define PHY_ANLPAR_RF 0x2000
#define PHY_ANLPAR_ASYMP 0x0800
#define PHY_ANLPAR_PAUSE 0x0400
#define PHY_ANLPAR_T4 0x0200
#define PHY_ANLPAR_TXFD 0x0100
#define PHY_ANLPAR_TX 0x0080
#define PHY_ANLPAR_10FD 0x0040
#define PHY_ANLPAR_10 0x0020
#define PHY_ANLPAR_100 0x0380 /* we can run at 100 */
/* phy ANLPAR 1000BASE-X */
#define PHY_X_ANLPAR_NP 0x8000
#define PHY_X_ANLPAR_ACK 0x4000
#define PHY_X_ANLPAR_RF_MASK 0x3000
#define PHY_X_ANLPAR_PAUSE_MASK 0x0180
#define PHY_X_ANLPAR_HD 0x0040
#define PHY_X_ANLPAR_FD 0x0020
#define PHY_ANLPAR_PSB_MASK 0x001f
#define PHY_ANLPAR_PSB_802_3 0x0001
#define PHY_ANLPAR_PSB_802_9 0x0002
/* phy 1000BTCR */
#define PHY_1000BTCR_1000FD 0x0200
#define PHY_1000BTCR_1000HD 0x0100
/* phy 1000BTSR */
#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 PHY_EXSR_1000XF 0x8000
#define PHY_EXSR_1000XH 0x4000
#define PHY_EXSR_1000TF 0x2000
#define PHY_EXSR_1000TH 0x1000
#endif