1 /**********************************************************************
2 * Author: Cavium Networks
4 * Contact: support@caviumnetworks.com
5 * This file is part of the OCTEON SDK
7 * Copyright (c) 2003-2007 Cavium Networks
9 * This file is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, Version 2, as
11 * published by the Free Software Foundation.
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16 * NONINFRINGEMENT. See the GNU General Public License for more
19 * You should have received a copy of the GNU General Public License
20 * along with this file; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 * or visit http://www.gnu.org/licenses/.
24 * This file may also be available under a different license from Cavium.
25 * Contact Cavium Networks for more information
26 **********************************************************************/
27 #include <linux/kernel.h>
28 #include <linux/ethtool.h>
29 #include <linux/phy.h>
30 #include <linux/ratelimit.h>
31 #include <linux/of_mdio.h>
35 #include <asm/octeon/octeon.h>
37 #include "ethernet-defines.h"
38 #include "octeon-ethernet.h"
39 #include "ethernet-mdio.h"
40 #include "ethernet-util.h"
42 #include <asm/octeon/cvmx-helper-board.h>
44 #include <asm/octeon/cvmx-smix-defs.h>
46 static void cvm_oct_get_drvinfo(struct net_device
*dev
,
47 struct ethtool_drvinfo
*info
)
49 strlcpy(info
->driver
, "cavium-ethernet", sizeof(info
->driver
));
50 strlcpy(info
->version
, OCTEON_ETHERNET_VERSION
, sizeof(info
->version
));
51 strlcpy(info
->bus_info
, "Builtin", sizeof(info
->bus_info
));
54 static int cvm_oct_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
56 struct octeon_ethernet
*priv
= netdev_priv(dev
);
59 return phy_ethtool_gset(priv
->phydev
, cmd
);
64 static int cvm_oct_set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
66 struct octeon_ethernet
*priv
= netdev_priv(dev
);
68 if (!capable(CAP_NET_ADMIN
))
72 return phy_ethtool_sset(priv
->phydev
, cmd
);
77 static int cvm_oct_nway_reset(struct net_device
*dev
)
79 struct octeon_ethernet
*priv
= netdev_priv(dev
);
81 if (!capable(CAP_NET_ADMIN
))
85 return phy_start_aneg(priv
->phydev
);
90 const struct ethtool_ops cvm_oct_ethtool_ops
= {
91 .get_drvinfo
= cvm_oct_get_drvinfo
,
92 .get_settings
= cvm_oct_get_settings
,
93 .set_settings
= cvm_oct_set_settings
,
94 .nway_reset
= cvm_oct_nway_reset
,
95 .get_link
= ethtool_op_get_link
,
99 * cvm_oct_ioctl - IOCTL support for PHY control
100 * @dev: Device to change
104 * Returns Zero on success
106 int cvm_oct_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
108 struct octeon_ethernet
*priv
= netdev_priv(dev
);
110 if (!netif_running(dev
))
116 return phy_mii_ioctl(priv
->phydev
, rq
, cmd
);
119 static void cvm_oct_note_carrier(struct octeon_ethernet
*priv
,
120 cvmx_helper_link_info_t li
)
123 pr_notice_ratelimited("%s: %u Mbps %s duplex, port %d\n",
124 netdev_name(priv
->netdev
), li
.s
.speed
,
125 (li
.s
.full_duplex
) ? "Full" : "Half",
128 pr_notice_ratelimited("%s: Link down\n",
129 netdev_name(priv
->netdev
));
133 void cvm_oct_set_carrier(struct octeon_ethernet
*priv
,
134 cvmx_helper_link_info_t link_info
)
136 cvm_oct_note_carrier(priv
, link_info
);
137 if (link_info
.s
.link_up
) {
138 if (!netif_carrier_ok(priv
->netdev
))
139 netif_carrier_on(priv
->netdev
);
141 if (netif_carrier_ok(priv
->netdev
))
142 netif_carrier_off(priv
->netdev
);
146 void cvm_oct_adjust_link(struct net_device
*dev
)
148 struct octeon_ethernet
*priv
= netdev_priv(dev
);
149 cvmx_helper_link_info_t link_info
;
151 if (priv
->last_link
!= priv
->phydev
->link
) {
152 priv
->last_link
= priv
->phydev
->link
;
154 link_info
.s
.link_up
= priv
->last_link
? 1 : 0;
155 link_info
.s
.full_duplex
= priv
->phydev
->duplex
? 1 : 0;
156 link_info
.s
.speed
= priv
->phydev
->speed
;
158 cvmx_helper_link_set(priv
->port
, link_info
);
159 cvm_oct_note_carrier(priv
, link_info
);
163 int cvm_oct_common_stop(struct net_device
*dev
)
165 struct octeon_ethernet
*priv
= netdev_priv(dev
);
166 cvmx_helper_link_info_t link_info
;
171 phy_disconnect(priv
->phydev
);
174 if (priv
->last_link
) {
178 cvmx_helper_link_set(priv
->port
, link_info
);
179 cvm_oct_note_carrier(priv
, link_info
);
185 * cvm_oct_phy_setup_device - setup the PHY
187 * @dev: Device to setup
189 * Returns Zero on success, negative on failure
191 int cvm_oct_phy_setup_device(struct net_device
*dev
)
193 struct octeon_ethernet
*priv
= netdev_priv(dev
);
194 struct device_node
*phy_node
;
199 phy_node
= of_parse_phandle(priv
->of_node
, "phy-handle", 0);
203 priv
->phydev
= of_phy_connect(dev
, phy_node
, cvm_oct_adjust_link
, 0,
204 PHY_INTERFACE_MODE_GMII
);
206 if (priv
->phydev
== NULL
)
210 phy_start_aneg(priv
->phydev
);
214 /* If there is no phy, assume a direct MAC connection and that
217 netif_carrier_on(dev
);