Commit | Line | Data |
---|---|---|
67620987 AK |
1 | /* |
2 | * This file is based on code from OCTEON SDK by Cavium Networks. | |
80ff0fd3 DD |
3 | * |
4 | * Copyright (c) 2003-2007 Cavium Networks | |
5 | * | |
6 | * This file is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License, Version 2, as | |
8 | * published by the Free Software Foundation. | |
67620987 AK |
9 | */ |
10 | ||
80ff0fd3 DD |
11 | #include <linux/kernel.h> |
12 | #include <linux/ethtool.h> | |
f6ed1b3b | 13 | #include <linux/phy.h> |
7a2eaf93 | 14 | #include <linux/ratelimit.h> |
df9244c5 | 15 | #include <linux/of_mdio.h> |
948c251b | 16 | #include <generated/utsrelease.h> |
80ff0fd3 DD |
17 | #include <net/dst.h> |
18 | ||
19 | #include <asm/octeon/octeon.h> | |
20 | ||
21 | #include "ethernet-defines.h" | |
22 | #include "octeon-ethernet.h" | |
23 | #include "ethernet-mdio.h" | |
f6ed1b3b | 24 | #include "ethernet-util.h" |
80ff0fd3 | 25 | |
96217ebf | 26 | #include <asm/octeon/cvmx-gmxx-defs.h> |
af866496 | 27 | #include <asm/octeon/cvmx-smix-defs.h> |
80ff0fd3 | 28 | |
80ff0fd3 DD |
29 | static void cvm_oct_get_drvinfo(struct net_device *dev, |
30 | struct ethtool_drvinfo *info) | |
31 | { | |
948c251b AK |
32 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
33 | strlcpy(info->version, UTS_RELEASE, sizeof(info->version)); | |
7826d43f | 34 | strlcpy(info->bus_info, "Builtin", sizeof(info->bus_info)); |
80ff0fd3 DD |
35 | } |
36 | ||
80ff0fd3 DD |
37 | static int cvm_oct_nway_reset(struct net_device *dev) |
38 | { | |
f6ed1b3b DD |
39 | if (!capable(CAP_NET_ADMIN)) |
40 | return -EPERM; | |
80ff0fd3 | 41 | |
86bc5ed6 PR |
42 | if (dev->phydev) |
43 | return phy_start_aneg(dev->phydev); | |
80ff0fd3 | 44 | |
f6ed1b3b | 45 | return -EINVAL; |
80ff0fd3 DD |
46 | } |
47 | ||
9326e361 | 48 | const struct ethtool_ops cvm_oct_ethtool_ops = { |
80ff0fd3 | 49 | .get_drvinfo = cvm_oct_get_drvinfo, |
80ff0fd3 | 50 | .nway_reset = cvm_oct_nway_reset, |
f6ed1b3b | 51 | .get_link = ethtool_op_get_link, |
0d5704bf PR |
52 | .get_link_ksettings = phy_ethtool_get_link_ksettings, |
53 | .set_link_ksettings = phy_ethtool_set_link_ksettings, | |
80ff0fd3 DD |
54 | }; |
55 | ||
56 | /** | |
ec977c5b | 57 | * cvm_oct_ioctl - IOCTL support for PHY control |
80ff0fd3 DD |
58 | * @dev: Device to change |
59 | * @rq: the request | |
60 | * @cmd: the command | |
ec977c5b | 61 | * |
80ff0fd3 DD |
62 | * Returns Zero on success |
63 | */ | |
64 | int cvm_oct_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
65 | { | |
f6ed1b3b DD |
66 | if (!netif_running(dev)) |
67 | return -EINVAL; | |
68 | ||
86bc5ed6 | 69 | if (!dev->phydev) |
f6ed1b3b DD |
70 | return -EINVAL; |
71 | ||
86bc5ed6 | 72 | return phy_mii_ioctl(dev->phydev, rq, cmd); |
f6ed1b3b | 73 | } |
80ff0fd3 | 74 | |
2638f713 AK |
75 | void cvm_oct_note_carrier(struct octeon_ethernet *priv, |
76 | cvmx_helper_link_info_t li) | |
ec3a2207 DD |
77 | { |
78 | if (li.s.link_up) { | |
36a14572 | 79 | pr_notice_ratelimited("%s: %u Mbps %s duplex, port %d, queue %d\n", |
ec3a2207 DD |
80 | netdev_name(priv->netdev), li.s.speed, |
81 | (li.s.full_duplex) ? "Full" : "Half", | |
36a14572 | 82 | priv->port, priv->queue); |
ec3a2207 DD |
83 | } else { |
84 | pr_notice_ratelimited("%s: Link down\n", | |
85 | netdev_name(priv->netdev)); | |
86 | } | |
87 | } | |
88 | ||
ec3a2207 | 89 | void cvm_oct_adjust_link(struct net_device *dev) |
f6ed1b3b DD |
90 | { |
91 | struct octeon_ethernet *priv = netdev_priv(dev); | |
92 | cvmx_helper_link_info_t link_info; | |
93 | ||
710086db | 94 | link_info.u64 = 0; |
86bc5ed6 PR |
95 | link_info.s.link_up = dev->phydev->link ? 1 : 0; |
96 | link_info.s.full_duplex = dev->phydev->duplex ? 1 : 0; | |
97 | link_info.s.speed = dev->phydev->speed; | |
710086db AK |
98 | priv->link_info = link_info.u64; |
99 | ||
100 | /* | |
101 | * The polling task need to know about link status changes. | |
102 | */ | |
103 | if (priv->poll) | |
104 | priv->poll(dev); | |
105 | ||
86bc5ed6 PR |
106 | if (priv->last_link != dev->phydev->link) { |
107 | priv->last_link = dev->phydev->link; | |
0da50c69 | 108 | cvmx_helper_link_set(priv->port, link_info); |
ec3a2207 | 109 | cvm_oct_note_carrier(priv, link_info); |
f6ed1b3b | 110 | } |
80ff0fd3 DD |
111 | } |
112 | ||
ec3a2207 DD |
113 | int cvm_oct_common_stop(struct net_device *dev) |
114 | { | |
115 | struct octeon_ethernet *priv = netdev_priv(dev); | |
96217ebf | 116 | int interface = INTERFACE(priv->port); |
ec3a2207 | 117 | cvmx_helper_link_info_t link_info; |
96217ebf AK |
118 | union cvmx_gmxx_prtx_cfg gmx_cfg; |
119 | int index = INDEX(priv->port); | |
120 | ||
121 | gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface)); | |
122 | gmx_cfg.s.en = 0; | |
123 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64); | |
ec3a2207 DD |
124 | |
125 | priv->poll = NULL; | |
126 | ||
86bc5ed6 PR |
127 | if (dev->phydev) |
128 | phy_disconnect(dev->phydev); | |
ec3a2207 DD |
129 | |
130 | if (priv->last_link) { | |
131 | link_info.u64 = 0; | |
132 | priv->last_link = 0; | |
133 | ||
134 | cvmx_helper_link_set(priv->port, link_info); | |
135 | cvm_oct_note_carrier(priv, link_info); | |
136 | } | |
137 | return 0; | |
138 | } | |
f6ed1b3b | 139 | |
80ff0fd3 | 140 | /** |
ec977c5b | 141 | * cvm_oct_phy_setup_device - setup the PHY |
80ff0fd3 DD |
142 | * |
143 | * @dev: Device to setup | |
144 | * | |
145 | * Returns Zero on success, negative on failure | |
146 | */ | |
f6ed1b3b | 147 | int cvm_oct_phy_setup_device(struct net_device *dev) |
80ff0fd3 DD |
148 | { |
149 | struct octeon_ethernet *priv = netdev_priv(dev); | |
df9244c5 | 150 | struct device_node *phy_node; |
86bc5ed6 | 151 | struct phy_device *phydev = NULL; |
f6ed1b3b | 152 | |
df9244c5 | 153 | if (!priv->of_node) |
ec3a2207 | 154 | goto no_phy; |
f6ed1b3b | 155 | |
df9244c5 | 156 | phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0); |
a25e2780 AK |
157 | if (!phy_node && of_phy_is_fixed_link(priv->of_node)) { |
158 | int rc; | |
159 | ||
160 | rc = of_phy_register_fixed_link(priv->of_node); | |
161 | if (rc) | |
162 | return rc; | |
163 | ||
164 | phy_node = of_node_get(priv->of_node); | |
165 | } | |
df9244c5 | 166 | if (!phy_node) |
ec3a2207 | 167 | goto no_phy; |
f6ed1b3b | 168 | |
86bc5ed6 PR |
169 | phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0, |
170 | PHY_INTERFACE_MODE_GMII); | |
df9244c5 | 171 | |
86bc5ed6 | 172 | if (!phydev) |
df9244c5 DD |
173 | return -ENODEV; |
174 | ||
175 | priv->last_link = 0; | |
86bc5ed6 | 176 | phy_start_aneg(phydev); |
f6ed1b3b | 177 | |
ec3a2207 DD |
178 | return 0; |
179 | no_phy: | |
180 | /* If there is no phy, assume a direct MAC connection and that | |
181 | * the link is up. | |
182 | */ | |
183 | netif_carrier_on(dev); | |
80ff0fd3 DD |
184 | return 0; |
185 | } |