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/*
* drivers/net/ucc_geth_mii.h
*
* QE UCC Gigabit Ethernet Driver -- MII Management Bus Implementation
* Provides Bus interface for MII Management regs in the UCC register space
*
* Copyright (C) 2007 Freescale Semiconductor, Inc.
*
* Authors: Li Yang <leoli@freescale.com>
* Kim Phillips <kim.phillips@freescale.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __UEC_MII_H
#define __UEC_MII_H
/* UCC GETH MIIMCFG (MII Management Configuration Register) */
#define MIIMCFG_RESET_MANAGEMENT 0x80000000 /* Reset
management */
#define MIIMCFG_NO_PREAMBLE 0x00000010 /* Preamble
suppress */
#define MIIMCFG_CLOCK_DIVIDE_SHIFT (31 - 31) /* clock divide
<< shift */
#define MIIMCFG_CLOCK_DIVIDE_MAX 0xf /* max clock divide */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_2 0x00000000
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4 0x00000001
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6 0x00000002
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8 0x00000003
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10 0x00000004
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14 0x00000005
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_16 0x00000008
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20 0x00000006
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28 0x00000007
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_32 0x00000009
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_48 0x0000000a
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_64 0x0000000b
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_80 0x0000000c
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112 0x0000000d
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_160 0x0000000e
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_224 0x0000000f
/* UCC GETH MIIMCOM (MII Management Command Register) */
#define MIIMCOM_SCAN_CYCLE 0x00000002 /* Scan cycle */
#define MIIMCOM_READ_CYCLE 0x00000001 /* Read cycle */
/* UCC GETH MIIMADD (MII Management Address Register) */
#define MIIMADD_PHY_ADDRESS_SHIFT (31 - 23) /* PHY Address
<< shift */
#define MIIMADD_PHY_REGISTER_SHIFT (31 - 31) /* PHY Register
<< shift */
/* UCC GETH MIIMCON (MII Management Control Register) */
#define MIIMCON_PHY_CONTROL_SHIFT (31 - 31) /* PHY Control
<< shift */
#define MIIMCON_PHY_STATUS_SHIFT (31 - 31) /* PHY Status
<< shift */
/* UCC GETH MIIMIND (MII Management Indicator Register) */
#define MIIMIND_NOT_VALID 0x00000004 /* Not valid */
#define MIIMIND_SCAN 0x00000002 /* Scan in
progress */
#define MIIMIND_BUSY 0x00000001
/* Initial TBI Physical Address */
#define UTBIPAR_INIT_TBIPA 0x1f
struct ucc_mii_mng {
u32 miimcfg; /* MII management configuration reg */
u32 miimcom; /* MII management command reg */
u32 miimadd; /* MII management address reg */
u32 miimcon; /* MII management control reg */
u32 miimstat; /* MII management status reg */
u32 miimind; /* MII management indication reg */
u8 notcare[28]; /* Space holder */
u32 utbipar; /* TBI phy address reg */
} __attribute__ ((packed));
/* TBI / MII Set Register */
enum enet_tbi_mii_reg {
ENET_TBI_MII_CR = 0x00, /* Control */
ENET_TBI_MII_SR = 0x01, /* Status */
ENET_TBI_MII_ANA = 0x04, /* AN advertisement */
ENET_TBI_MII_ANLPBPA = 0x05, /* AN link partner base page ability */
ENET_TBI_MII_ANEX = 0x06, /* AN expansion */
ENET_TBI_MII_ANNPT = 0x07, /* AN next page transmit */
ENET_TBI_MII_ANLPANP = 0x08, /* AN link partner ability next page */
ENET_TBI_MII_EXST = 0x0F, /* Extended status */
ENET_TBI_MII_JD = 0x10, /* Jitter diagnostics */
ENET_TBI_MII_TBICON = 0x11 /* TBI control */
};
int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
int __init uec_mdio_init(void);
void uec_mdio_exit(void);
#endif /* __UEC_MII_H */
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