xref: /titanic_41/usr/src/uts/common/io/mii/mii_realtek.c (revision 418e2f3050b6a419bd7c37e2ed3d8dd99b7cc261)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * MII overrides for Cicada (now Vitesse) PHYs.
28  */
29 
30 #include <sys/types.h>
31 #include <sys/ddi.h>
32 #include <sys/sunddi.h>
33 #include <sys/mii.h>
34 #include <sys/miiregs.h>
35 #include "miipriv.h"
36 
37 
38 /*
39  * The Realtek 10/100 PHYs are mostly standard compliant, but they
40  * lack a true vendor/device ID for the integrated PHY, and they don't
41  * report the "detected" non-Nway link speed in the appropriate
42  * registers.
43  */
44 static int rtl8139_check(phy_handle_t *);
45 static int rtl8201_check(phy_handle_t *);
46 
47 boolean_t
48 phy_realtek_probe(phy_handle_t *ph)
49 {
50 	if ((ph->phy_id == 0) &&
51 	    (strcmp(phy_get_driver(ph), "rtls") == 0)) {
52 		ph->phy_vendor = "Realtek";
53 		ph->phy_model = "Internal RTL8139";
54 		ph->phy_check = rtl8139_check;
55 		return (B_TRUE);
56 	} else if (ph->phy_id == 0x8201) {
57 		ph->phy_vendor = "Realtek";
58 		ph->phy_model = "RTL8201";
59 		ph->phy_check = rtl8201_check;
60 		return (B_TRUE);
61 	} else {
62 		return (B_FALSE);
63 	}
64 }
65 
66 static int
67 rtl8139_check(phy_handle_t *ph)
68 {
69 	int		rv;
70 	uint16_t	s;
71 
72 	rv = phy_check(ph);
73 
74 	/*
75 	 * We possibly override settings, so that we can use the PHYs
76 	 * autodetected link speed if the partner isn't doing NWay.
77 	 */
78 	s = phy_read(ph, MII_VENDOR(0));
79 	if (s & (1 << 2)) {
80 		ph->phy_link = LINK_STATE_DOWN;
81 	} else {
82 		ph->phy_link = LINK_STATE_UP;
83 		if (s & (1 << 3)) {
84 			ph->phy_speed = 10;
85 		} else {
86 			ph->phy_speed = 100;
87 		}
88 	}
89 
90 	return (rv);
91 }
92 
93 static int
94 rtl8201_check(phy_handle_t *ph)
95 {
96 	int		rv;
97 	uint16_t	s;
98 
99 	rv = phy_check(ph);
100 
101 	/*
102 	 * We possibly override settings, so that we can use the PHYs
103 	 * autodetected link speed if the partner isn't doing NWay.
104 	 */
105 	s = phy_read(ph, MII_VENDOR(9));
106 	if (s & (1 << 0)) {
107 		ph->phy_link = LINK_STATE_UP;
108 		ph->phy_speed = 100;
109 	} else if (s & (1 << 1)) {
110 		ph->phy_link = LINK_STATE_UP;
111 		ph->phy_speed = 10;
112 	} else {
113 		ph->phy_link = LINK_STATE_DOWN;
114 	}
115 
116 	return (rv);
117 }
118