1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * drivers/net/ethernet/ibm/emac/phy.h |
4 | * |
5 | * Driver for PowerPC 4xx on-chip ethernet controller, PHY support |
6 | * |
7 | * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. |
8 | * <benh@kernel.crashing.org> |
9 | * |
10 | * Based on the arch/ppc version of the driver: |
11 | * |
12 | * Benjamin Herrenschmidt <benh@kernel.crashing.org> |
13 | * February 2003 |
14 | * |
15 | * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004 |
16 | * |
17 | * This file basically duplicates sungem_phy.{c,h} with different PHYs |
18 | * supported. I'm looking into merging that in a single mii layer more |
19 | * flexible than mii.c |
20 | */ |
21 | |
22 | #ifndef __IBM_NEWEMAC_PHY_H |
23 | #define __IBM_NEWEMAC_PHY_H |
24 | |
25 | struct mii_phy; |
26 | |
27 | /* Operations supported by any kind of PHY */ |
28 | struct mii_phy_ops { |
29 | int (*init) (struct mii_phy * phy); |
30 | int (*suspend) (struct mii_phy * phy, int wol_options); |
31 | int (*setup_aneg) (struct mii_phy * phy, u32 advertise); |
32 | int (*setup_forced) (struct mii_phy * phy, int speed, int fd); |
33 | int (*poll_link) (struct mii_phy * phy); |
34 | int (*read_link) (struct mii_phy * phy); |
35 | }; |
36 | |
37 | /* Structure used to statically define an mii/gii based PHY */ |
38 | struct mii_phy_def { |
39 | u32 phy_id; /* Concatenated ID1 << 16 | ID2 */ |
40 | u32 phy_id_mask; /* Significant bits */ |
41 | u32 features; /* Ethtool SUPPORTED_* defines or |
42 | 0 for autodetect */ |
43 | int magic_aneg; /* Autoneg does all speed test for us */ |
44 | const char *name; |
45 | const struct mii_phy_ops *ops; |
46 | }; |
47 | |
48 | /* An instance of a PHY, partially borrowed from mii_if_info */ |
49 | struct mii_phy { |
50 | struct mii_phy_def *def; |
51 | u32 advertising; /* Ethtool ADVERTISED_* defines */ |
52 | u32 features; /* Copied from mii_phy_def.features |
53 | or determined automaticaly */ |
54 | int address; /* PHY address */ |
55 | int mode; /* PHY mode */ |
56 | int gpcs_address; /* GPCS PHY address */ |
57 | |
58 | /* 1: autoneg enabled, 0: disabled */ |
59 | int autoneg; |
60 | |
61 | /* forced speed & duplex (no autoneg) |
62 | * partner speed & duplex & pause (autoneg) |
63 | */ |
64 | int speed; |
65 | int duplex; |
66 | int pause; |
67 | int asym_pause; |
68 | |
69 | /* Provided by host chip */ |
70 | struct net_device *dev; |
71 | int (*mdio_read) (struct net_device * dev, int addr, int reg); |
72 | void (*mdio_write) (struct net_device * dev, int addr, int reg, |
73 | int val); |
74 | }; |
75 | |
76 | /* Pass in a struct mii_phy with dev, mdio_read and mdio_write |
77 | * filled, the remaining fields will be filled on return |
78 | */ |
79 | int emac_mii_phy_probe(struct mii_phy *phy, int address); |
80 | int emac_mii_reset_phy(struct mii_phy *phy); |
81 | int emac_mii_reset_gpcs(struct mii_phy *phy); |
82 | |
83 | #endif /* __IBM_NEWEMAC_PHY_H */ |
84 | |