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80ff0fd3 DD |
1 | /********************************************************************** |
2 | * Author: Cavium Networks | |
3 | * | |
4 | * Contact: support@caviumnetworks.com | |
5 | * This file is part of the OCTEON SDK | |
6 | * | |
7 | * Copyright (c) 2003-2007 Cavium Networks | |
8 | * | |
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. | |
12 | * | |
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 | |
17 | * details. | |
18 | * | |
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/. | |
23 | * | |
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/netdevice.h> | |
7a2eaf93 | 29 | #include <linux/ratelimit.h> |
80ff0fd3 DD |
30 | #include <net/dst.h> |
31 | ||
32 | #include <asm/octeon/octeon.h> | |
33 | ||
34 | #include "ethernet-defines.h" | |
35 | #include "octeon-ethernet.h" | |
36 | #include "ethernet-util.h" | |
80ff0fd3 | 37 | |
af866496 | 38 | #include <asm/octeon/cvmx-helper.h> |
80ff0fd3 | 39 | |
af866496 | 40 | #include <asm/octeon/cvmx-gmxx-defs.h> |
80ff0fd3 | 41 | |
f696a108 | 42 | int cvm_oct_sgmii_open(struct net_device *dev) |
80ff0fd3 DD |
43 | { |
44 | union cvmx_gmxx_prtx_cfg gmx_cfg; | |
45 | struct octeon_ethernet *priv = netdev_priv(dev); | |
46 | int interface = INTERFACE(priv->port); | |
47 | int index = INDEX(priv->port); | |
48 | cvmx_helper_link_info_t link_info; | |
49 | ||
50 | gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface)); | |
51 | gmx_cfg.s.en = 1; | |
52 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64); | |
53 | ||
54 | if (!octeon_is_simulation()) { | |
55 | link_info = cvmx_helper_link_get(priv->port); | |
56 | if (!link_info.s.link_up) | |
57 | netif_carrier_off(dev); | |
58 | } | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
f696a108 | 63 | int cvm_oct_sgmii_stop(struct net_device *dev) |
80ff0fd3 DD |
64 | { |
65 | union cvmx_gmxx_prtx_cfg gmx_cfg; | |
66 | struct octeon_ethernet *priv = netdev_priv(dev); | |
67 | int interface = INTERFACE(priv->port); | |
68 | int index = INDEX(priv->port); | |
69 | ||
70 | gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface)); | |
71 | gmx_cfg.s.en = 0; | |
72 | cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static void cvm_oct_sgmii_poll(struct net_device *dev) | |
77 | { | |
78 | struct octeon_ethernet *priv = netdev_priv(dev); | |
79 | cvmx_helper_link_info_t link_info; | |
80 | ||
81 | link_info = cvmx_helper_link_get(priv->port); | |
82 | if (link_info.u64 == priv->link_info) | |
83 | return; | |
84 | ||
85 | link_info = cvmx_helper_link_autoconf(priv->port); | |
86 | priv->link_info = link_info.u64; | |
87 | ||
88 | /* Tell Linux */ | |
89 | if (link_info.s.link_up) { | |
90 | ||
91 | if (!netif_carrier_ok(dev)) | |
92 | netif_carrier_on(dev); | |
93 | if (priv->queue != -1) | |
7a2eaf93 | 94 | printk_ratelimited |
80ff0fd3 DD |
95 | ("%s: %u Mbps %s duplex, port %2d, queue %2d\n", |
96 | dev->name, link_info.s.speed, | |
97 | (link_info.s.full_duplex) ? "Full" : "Half", | |
98 | priv->port, priv->queue); | |
99 | else | |
7a2eaf93 CD |
100 | printk_ratelimited |
101 | ("%s: %u Mbps %s duplex, port %2d, POW\n", | |
102 | dev->name, link_info.s.speed, | |
103 | (link_info.s.full_duplex) ? "Full" : "Half", | |
104 | priv->port); | |
80ff0fd3 DD |
105 | } else { |
106 | if (netif_carrier_ok(dev)) | |
107 | netif_carrier_off(dev); | |
7a2eaf93 | 108 | printk_ratelimited("%s: Link down\n", dev->name); |
80ff0fd3 DD |
109 | } |
110 | } | |
111 | ||
112 | int cvm_oct_sgmii_init(struct net_device *dev) | |
113 | { | |
114 | struct octeon_ethernet *priv = netdev_priv(dev); | |
115 | cvm_oct_common_init(dev); | |
f696a108 | 116 | dev->netdev_ops->ndo_stop(dev); |
f6ed1b3b | 117 | if (!octeon_is_simulation() && priv->phydev == NULL) |
80ff0fd3 DD |
118 | priv->poll = cvm_oct_sgmii_poll; |
119 | ||
120 | /* FIXME: Need autoneg logic */ | |
121 | return 0; | |
122 | } | |
123 | ||
124 | void cvm_oct_sgmii_uninit(struct net_device *dev) | |
125 | { | |
126 | cvm_oct_common_uninit(dev); | |
127 | } |