tjh.dev
Linux kernel mirror (for testing)
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1/*
2 * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
3 *
4 * Author: Shlomi Gridish <gridish@freescale.com>
5 *
6 * Description:
7 * UCC GETH Driver -- PHY handling
8 *
9 * Changelog:
10 * Jun 28, 2006 Li Yang <LeoLi@freescale.com>
11 * - Rearrange code and style fixes
12 *
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
17 *
18 */
19#ifndef __UCC_GETH_PHY_H__
20#define __UCC_GETH_PHY_H__
21
22#define MII_end ((u32)-2)
23#define MII_read ((u32)-1)
24
25#define MIIMIND_BUSY 0x00000001
26#define MIIMIND_NOTVALID 0x00000004
27
28#define UGETH_AN_TIMEOUT 2000
29
30/* 1000BT control (Marvell & BCM54xx at least) */
31#define MII_1000BASETCONTROL 0x09
32#define MII_1000BASETCONTROL_FULLDUPLEXCAP 0x0200
33#define MII_1000BASETCONTROL_HALFDUPLEXCAP 0x0100
34
35/* Cicada Extended Control Register 1 */
36#define MII_CIS8201_EXT_CON1 0x17
37#define MII_CIS8201_EXTCON1_INIT 0x0000
38
39/* Cicada Interrupt Mask Register */
40#define MII_CIS8201_IMASK 0x19
41#define MII_CIS8201_IMASK_IEN 0x8000
42#define MII_CIS8201_IMASK_SPEED 0x4000
43#define MII_CIS8201_IMASK_LINK 0x2000
44#define MII_CIS8201_IMASK_DUPLEX 0x1000
45#define MII_CIS8201_IMASK_MASK 0xf000
46
47/* Cicada Interrupt Status Register */
48#define MII_CIS8201_ISTAT 0x1a
49#define MII_CIS8201_ISTAT_STATUS 0x8000
50#define MII_CIS8201_ISTAT_SPEED 0x4000
51#define MII_CIS8201_ISTAT_LINK 0x2000
52#define MII_CIS8201_ISTAT_DUPLEX 0x1000
53
54/* Cicada Auxiliary Control/Status Register */
55#define MII_CIS8201_AUX_CONSTAT 0x1c
56#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
57#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
58#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
59#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
60#define MII_CIS8201_AUXCONSTAT_100 0x0008
61
62/* 88E1011 PHY Status Register */
63#define MII_M1011_PHY_SPEC_STATUS 0x11
64#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
65#define MII_M1011_PHY_SPEC_STATUS_100 0x4000
66#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
67#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
68#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
69#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
70
71#define MII_M1011_IEVENT 0x13
72#define MII_M1011_IEVENT_CLEAR 0x0000
73
74#define MII_M1011_IMASK 0x12
75#define MII_M1011_IMASK_INIT 0x6400
76#define MII_M1011_IMASK_CLEAR 0x0000
77
78#define MII_DM9161_SCR 0x10
79#define MII_DM9161_SCR_INIT 0x0610
80
81/* DM9161 Specified Configuration and Status Register */
82#define MII_DM9161_SCSR 0x11
83#define MII_DM9161_SCSR_100F 0x8000
84#define MII_DM9161_SCSR_100H 0x4000
85#define MII_DM9161_SCSR_10F 0x2000
86#define MII_DM9161_SCSR_10H 0x1000
87
88/* DM9161 Interrupt Register */
89#define MII_DM9161_INTR 0x15
90#define MII_DM9161_INTR_PEND 0x8000
91#define MII_DM9161_INTR_DPLX_MASK 0x0800
92#define MII_DM9161_INTR_SPD_MASK 0x0400
93#define MII_DM9161_INTR_LINK_MASK 0x0200
94#define MII_DM9161_INTR_MASK 0x0100
95#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
96#define MII_DM9161_INTR_SPD_CHANGE 0x0008
97#define MII_DM9161_INTR_LINK_CHANGE 0x0004
98#define MII_DM9161_INTR_INIT 0x0000
99#define MII_DM9161_INTR_STOP \
100(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
101 | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
102
103/* DM9161 10BT Configuration/Status */
104#define MII_DM9161_10BTCSR 0x12
105#define MII_DM9161_10BTCSR_INIT 0x7800
106
107#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
108 SUPPORTED_10baseT_Full | \
109 SUPPORTED_100baseT_Half | \
110 SUPPORTED_100baseT_Full | \
111 SUPPORTED_Autoneg | \
112 SUPPORTED_TP | \
113 SUPPORTED_MII)
114
115#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
116 SUPPORTED_1000baseT_Half | \
117 SUPPORTED_1000baseT_Full)
118
119#define MII_READ_COMMAND 0x00000001
120
121#define MII_INTERRUPT_DISABLED 0x0
122#define MII_INTERRUPT_ENABLED 0x1
123/* Taken from mii_if_info and sungem_phy.h */
124struct ugeth_mii_info {
125 /* Information about the PHY type */
126 /* And management functions */
127 struct phy_info *phyinfo;
128
129 struct ucc_mii_mng *mii_regs;
130
131 /* forced speed & duplex (no autoneg)
132 * partner speed & duplex & pause (autoneg)
133 */
134 int speed;
135 int duplex;
136 int pause;
137
138 /* The most recently read link state */
139 int link;
140
141 /* Enabled Interrupts */
142 u32 interrupts;
143
144 u32 advertising;
145 int autoneg;
146 int mii_id;
147
148 /* private data pointer */
149 /* For use by PHYs to maintain extra state */
150 void *priv;
151
152 /* Provided by host chip */
153 struct net_device *dev;
154
155 /* A lock to ensure that only one thing can read/write
156 * the MDIO bus at a time */
157 spinlock_t mdio_lock;
158
159 /* Provided by ethernet driver */
160 int (*mdio_read) (struct net_device * dev, int mii_id, int reg);
161 void (*mdio_write) (struct net_device * dev, int mii_id, int reg,
162 int val);
163};
164
165/* struct phy_info: a structure which defines attributes for a PHY
166 *
167 * id will contain a number which represents the PHY. During
168 * startup, the driver will poll the PHY to find out what its
169 * UID--as defined by registers 2 and 3--is. The 32-bit result
170 * gotten from the PHY will be ANDed with phy_id_mask to
171 * discard any bits which may change based on revision numbers
172 * unimportant to functionality
173 *
174 * There are 6 commands which take a ugeth_mii_info structure.
175 * Each PHY must declare config_aneg, and read_status.
176 */
177struct phy_info {
178 u32 phy_id;
179 char *name;
180 unsigned int phy_id_mask;
181 u32 features;
182
183 /* Called to initialize the PHY */
184 int (*init) (struct ugeth_mii_info * mii_info);
185
186 /* Called to suspend the PHY for power */
187 int (*suspend) (struct ugeth_mii_info * mii_info);
188
189 /* Reconfigures autonegotiation (or disables it) */
190 int (*config_aneg) (struct ugeth_mii_info * mii_info);
191
192 /* Determines the negotiated speed and duplex */
193 int (*read_status) (struct ugeth_mii_info * mii_info);
194
195 /* Clears any pending interrupts */
196 int (*ack_interrupt) (struct ugeth_mii_info * mii_info);
197
198 /* Enables or disables interrupts */
199 int (*config_intr) (struct ugeth_mii_info * mii_info);
200
201 /* Clears up any memory if needed */
202 void (*close) (struct ugeth_mii_info * mii_info);
203};
204
205struct phy_info *get_phy_info(struct ugeth_mii_info *mii_info);
206void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value);
207int read_phy_reg(struct net_device *dev, int mii_id, int regnum);
208void mii_clear_phy_interrupt(struct ugeth_mii_info *mii_info);
209void mii_configure_phy_interrupt(struct ugeth_mii_info *mii_info,
210 u32 interrupts);
211
212struct dm9161_private {
213 struct timer_list timer;
214 int resetdone;
215};
216
217#endif /* __UCC_GETH_PHY_H__ */