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/netdevice.h>
29 #include <linux/mii.h>
32 #include <asm/octeon/octeon.h>
34 #include "ethernet-defines.h"
35 #include "octeon-ethernet.h"
36 #include "ethernet-util.h"
37 #include "ethernet-common.h"
39 #include "cvmx-helper.h"
41 #include "cvmx-gmxx-defs.h"
43 static int cvm_oct_sgmii_open(struct net_device
*dev
)
45 union cvmx_gmxx_prtx_cfg gmx_cfg
;
46 struct octeon_ethernet
*priv
= netdev_priv(dev
);
47 int interface
= INTERFACE(priv
->port
);
48 int index
= INDEX(priv
->port
);
49 cvmx_helper_link_info_t link_info
;
51 gmx_cfg
.u64
= cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index
, interface
));
53 cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index
, interface
), gmx_cfg
.u64
);
55 if (!octeon_is_simulation()) {
56 link_info
= cvmx_helper_link_get(priv
->port
);
57 if (!link_info
.s
.link_up
)
58 netif_carrier_off(dev
);
64 static int cvm_oct_sgmii_stop(struct net_device
*dev
)
66 union cvmx_gmxx_prtx_cfg gmx_cfg
;
67 struct octeon_ethernet
*priv
= netdev_priv(dev
);
68 int interface
= INTERFACE(priv
->port
);
69 int index
= INDEX(priv
->port
);
71 gmx_cfg
.u64
= cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index
, interface
));
73 cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index
, interface
), gmx_cfg
.u64
);
77 static void cvm_oct_sgmii_poll(struct net_device
*dev
)
79 struct octeon_ethernet
*priv
= netdev_priv(dev
);
80 cvmx_helper_link_info_t link_info
;
82 link_info
= cvmx_helper_link_get(priv
->port
);
83 if (link_info
.u64
== priv
->link_info
)
86 link_info
= cvmx_helper_link_autoconf(priv
->port
);
87 priv
->link_info
= link_info
.u64
;
90 if (link_info
.s
.link_up
) {
92 if (!netif_carrier_ok(dev
))
93 netif_carrier_on(dev
);
94 if (priv
->queue
!= -1)
96 ("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
97 dev
->name
, link_info
.s
.speed
,
98 (link_info
.s
.full_duplex
) ? "Full" : "Half",
99 priv
->port
, priv
->queue
);
101 DEBUGPRINT("%s: %u Mbps %s duplex, port %2d, POW\n",
102 dev
->name
, link_info
.s
.speed
,
103 (link_info
.s
.full_duplex
) ? "Full" : "Half",
106 if (netif_carrier_ok(dev
))
107 netif_carrier_off(dev
);
108 DEBUGPRINT("%s: Link down\n", dev
->name
);
112 int cvm_oct_sgmii_init(struct net_device
*dev
)
114 struct octeon_ethernet
*priv
= netdev_priv(dev
);
115 cvm_oct_common_init(dev
);
116 dev
->open
= cvm_oct_sgmii_open
;
117 dev
->stop
= cvm_oct_sgmii_stop
;
119 if (!octeon_is_simulation())
120 priv
->poll
= cvm_oct_sgmii_poll
;
122 /* FIXME: Need autoneg logic */
126 void cvm_oct_sgmii_uninit(struct net_device
*dev
)
128 cvm_oct_common_uninit(dev
);