xref: /freebsd/sys/dev/mii/mii_fdt.h (revision 8881d206f4e68b564c2c5f50fc717086fc3e827a)
1 /*-
2  * Copyright (c) 2017 Ian Lepore <ian@freebsd.org>
3  * All rights reserved.
4  *
5  * Development sponsored by Microsemi, Inc.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _DEV_MII_FDT_H_
32 #define	_DEV_MII_FDT_H_
33 
34 /*
35  * Common FDT config for a PHY, as documented in the devicetree bindings
36  * documents ethernet.txt and phy.txt.  Boolean properties are represented as
37  * bits in the flags member.
38  */
39 struct mii_fdt_phy_config {
40 	phandle_t	macnode;	/* Node (not xref) of parent MAC */
41 	phandle_t	phynode;	/* Node (not xref) of PHY */
42 	mii_contype_t	con_type;	/* MAC<->PHY connection type */
43 	u_int		max_speed;	/* Mbits/sec, 0 = not specified */
44 	uint32_t	flags;		/* MIIF_FDT_xxx boolean properties */
45 };
46 typedef struct mii_fdt_phy_config mii_fdt_phy_config_t;
47 
48 /* PHY config flags. */
49 #define	MIIF_FDT_COMPAT_CLAUSE45	0x0001
50 #define	MIIF_FDT_BROKEN_TURNAROUND	0x0002
51 #define	MIIF_FDT_LANE_SWAP		0x0004
52 #define	MIIF_FDT_NO_LANE_SWAP		0x0008
53 #define	MIIF_FDT_EEE_BROKEN_100TX	0x0010
54 #define	MIIF_FDT_EEE_BROKEN_1000T	0x0020
55 #define	MIIF_FDT_EEE_BROKEN_10GT	0x0040
56 #define	MIIF_FDT_EEE_BROKEN_1000KX	0x0080
57 #define	MIIF_FDT_EEE_BROKEN_10GKX4	0x0100
58 #define	MIIF_FDT_EEE_BROKEN_10GKR	0x0200
59 
60 /*
61  * Convert between mii_contype enums and devicetree property strings.
62  */
63 const char *mii_fdt_contype_to_name(mii_contype_t contype);
64 mii_contype_t mii_fdt_contype_from_name(const char *name);
65 
66 /* Get the connection type from the given MAC node. */
67 mii_contype_t mii_fdt_get_contype(phandle_t macnode);
68 
69 /*
70  * Get/free the config for the given PHY device.
71  */
72 void mii_fdt_free_config(struct mii_fdt_phy_config *cfg);
73 mii_fdt_phy_config_t *mii_fdt_get_config(device_t phydev);
74 
75 #endif
76