2 * Copyright (C) 2005, 2011 Freescale Semiconductor, Inc.
4 * Author: Shlomi Gridish <gridish@freescale.com>
6 * Description: UCC ethernet driver -- PHY handling
8 * Based on 8260_io/fcc_enet.c
10 * SPDX-License-Identifier: GPL-2.0+
15 #define MII_end ((u32)-2)
16 #define MII_read ((u32)-1)
18 #define MIIMIND_BUSY 0x00000001
19 #define MIIMIND_NOTVALID 0x00000004
21 #define UGETH_AN_TIMEOUT 2000
23 /* Cicada Extended Control Register 1 */
24 #define MII_CIS8201_EXT_CON1 0x17
25 #define MII_CIS8201_EXTCON1_INIT 0x0000
27 /* Cicada Interrupt Mask Register */
28 #define MII_CIS8201_IMASK 0x19
29 #define MII_CIS8201_IMASK_IEN 0x8000
30 #define MII_CIS8201_IMASK_SPEED 0x4000
31 #define MII_CIS8201_IMASK_LINK 0x2000
32 #define MII_CIS8201_IMASK_DUPLEX 0x1000
33 #define MII_CIS8201_IMASK_MASK 0xf000
35 /* Cicada Interrupt Status Register */
36 #define MII_CIS8201_ISTAT 0x1a
37 #define MII_CIS8201_ISTAT_STATUS 0x8000
38 #define MII_CIS8201_ISTAT_SPEED 0x4000
39 #define MII_CIS8201_ISTAT_LINK 0x2000
40 #define MII_CIS8201_ISTAT_DUPLEX 0x1000
42 /* Cicada Auxiliary Control/Status Register */
43 #define MII_CIS8201_AUX_CONSTAT 0x1c
44 #define MII_CIS8201_AUXCONSTAT_INIT 0x0004
45 #define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
46 #define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
47 #define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
48 #define MII_CIS8201_AUXCONSTAT_100 0x0008
50 /* 88E1011 PHY Status Register */
51 #define MII_M1011_PHY_SPEC_STATUS 0x11
52 #define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
53 #define MII_M1011_PHY_SPEC_STATUS_100 0x4000
54 #define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
55 #define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
56 #define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
57 #define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
59 #define MII_M1011_IEVENT 0x13
60 #define MII_M1011_IEVENT_CLEAR 0x0000
62 #define MII_M1011_IMASK 0x12
63 #define MII_M1011_IMASK_INIT 0x6400
64 #define MII_M1011_IMASK_CLEAR 0x0000
66 /* 88E1111 PHY Register */
67 #define MII_M1111_PHY_EXT_CR 0x14
68 #define MII_M1111_RX_DELAY 0x80
69 #define MII_M1111_TX_DELAY 0x2
70 #define MII_M1111_PHY_EXT_SR 0x1b
71 #define MII_M1111_HWCFG_MODE_MASK 0xf
72 #define MII_M1111_HWCFG_MODE_RGMII 0xb
74 #define MII_DM9161_SCR 0x10
75 #define MII_DM9161_SCR_INIT 0x0610
76 #define MII_DM9161_SCR_RMII_INIT 0x0710
78 /* DM9161 Specified Configuration and Status Register */
79 #define MII_DM9161_SCSR 0x11
80 #define MII_DM9161_SCSR_100F 0x8000
81 #define MII_DM9161_SCSR_100H 0x4000
82 #define MII_DM9161_SCSR_10F 0x2000
83 #define MII_DM9161_SCSR_10H 0x1000
85 /* DM9161 Interrupt Register */
86 #define MII_DM9161_INTR 0x15
87 #define MII_DM9161_INTR_PEND 0x8000
88 #define MII_DM9161_INTR_DPLX_MASK 0x0800
89 #define MII_DM9161_INTR_SPD_MASK 0x0400
90 #define MII_DM9161_INTR_LINK_MASK 0x0200
91 #define MII_DM9161_INTR_MASK 0x0100
92 #define MII_DM9161_INTR_DPLX_CHANGE 0x0010
93 #define MII_DM9161_INTR_SPD_CHANGE 0x0008
94 #define MII_DM9161_INTR_LINK_CHANGE 0x0004
95 #define MII_DM9161_INTR_INIT 0x0000
96 #define MII_DM9161_INTR_STOP \
97 (MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
98 | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
100 /* DM9161 10BT Configuration/Status */
101 #define MII_DM9161_10BTCSR 0x12
102 #define MII_DM9161_10BTCSR_INIT 0x7800
104 #define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
105 SUPPORTED_10baseT_Full | \
106 SUPPORTED_100baseT_Half | \
107 SUPPORTED_100baseT_Full | \
108 SUPPORTED_Autoneg | \
112 #define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
113 SUPPORTED_1000baseT_Half | \
114 SUPPORTED_1000baseT_Full)
116 #define MII_READ_COMMAND 0x00000001
118 #define MII_INTERRUPT_DISABLED 0x0
119 #define MII_INTERRUPT_ENABLED 0x1
122 #define SPEED_100 100
123 #define SPEED_1000 1000
125 /* Duplex, half or full. */
126 #define DUPLEX_HALF 0x00
127 #define DUPLEX_FULL 0x01
129 /* Indicates what features are supported by the interface. */
130 #define SUPPORTED_10baseT_Half (1 << 0)
131 #define SUPPORTED_10baseT_Full (1 << 1)
132 #define SUPPORTED_100baseT_Half (1 << 2)
133 #define SUPPORTED_100baseT_Full (1 << 3)
134 #define SUPPORTED_1000baseT_Half (1 << 4)
135 #define SUPPORTED_1000baseT_Full (1 << 5)
136 #define SUPPORTED_Autoneg (1 << 6)
137 #define SUPPORTED_TP (1 << 7)
138 #define SUPPORTED_AUI (1 << 8)
139 #define SUPPORTED_MII (1 << 9)
140 #define SUPPORTED_FIBRE (1 << 10)
141 #define SUPPORTED_BNC (1 << 11)
142 #define SUPPORTED_10000baseT_Full (1 << 12)
144 #define ADVERTISED_10baseT_Half (1 << 0)
145 #define ADVERTISED_10baseT_Full (1 << 1)
146 #define ADVERTISED_100baseT_Half (1 << 2)
147 #define ADVERTISED_100baseT_Full (1 << 3)
148 #define ADVERTISED_1000baseT_Half (1 << 4)
149 #define ADVERTISED_1000baseT_Full (1 << 5)
150 #define ADVERTISED_Autoneg (1 << 6)
151 #define ADVERTISED_TP (1 << 7)
152 #define ADVERTISED_AUI (1 << 8)
153 #define ADVERTISED_MII (1 << 9)
154 #define ADVERTISED_FIBRE (1 << 10)
155 #define ADVERTISED_BNC (1 << 11)
156 #define ADVERTISED_10000baseT_Full (1 << 12)
158 /* Taken from mii_if_info and sungem_phy.h */
159 struct uec_mii_info {
160 /* Information about the PHY type */
161 /* And management functions */
162 struct phy_info *phyinfo;
164 struct eth_device *dev;
166 /* forced speed & duplex (no autoneg)
167 * partner speed & duplex & pause (autoneg)
173 /* The most recently read link state */
176 /* Enabled Interrupts */
183 /* private data pointer */
184 /* For use by PHYs to maintain extra state */
187 /* Provided by ethernet driver */
188 int (*mdio_read) (struct eth_device * dev, int mii_id, int reg);
189 void (*mdio_write) (struct eth_device * dev, int mii_id, int reg,
193 /* struct phy_info: a structure which defines attributes for a PHY
195 * id will contain a number which represents the PHY. During
196 * startup, the driver will poll the PHY to find out what its
197 * UID--as defined by registers 2 and 3--is. The 32-bit result
198 * gotten from the PHY will be ANDed with phy_id_mask to
199 * discard any bits which may change based on revision numbers
200 * unimportant to functionality
202 * There are 6 commands which take a ugeth_mii_info structure.
203 * Each PHY must declare config_aneg, and read_status.
208 unsigned int phy_id_mask;
211 /* Called to initialize the PHY */
212 int (*init) (struct uec_mii_info * mii_info);
214 /* Called to suspend the PHY for power */
215 int (*suspend) (struct uec_mii_info * mii_info);
217 /* Reconfigures autonegotiation (or disables it) */
218 int (*config_aneg) (struct uec_mii_info * mii_info);
220 /* Determines the negotiated speed and duplex */
221 int (*read_status) (struct uec_mii_info * mii_info);
223 /* Clears any pending interrupts */
224 int (*ack_interrupt) (struct uec_mii_info * mii_info);
226 /* Enables or disables interrupts */
227 int (*config_intr) (struct uec_mii_info * mii_info);
229 /* Clears up any memory if needed */
230 void (*close) (struct uec_mii_info * mii_info);
233 struct phy_info *uec_get_phy_info (struct uec_mii_info *mii_info);
234 void uec_write_phy_reg (struct eth_device *dev, int mii_id, int regnum,
236 int uec_read_phy_reg (struct eth_device *dev, int mii_id, int regnum);
237 void mii_clear_phy_interrupt (struct uec_mii_info *mii_info);
238 void mii_configure_phy_interrupt (struct uec_mii_info *mii_info,
240 #endif /* __UEC_PHY_H__ */