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/**********************************************************************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2007 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* or visit http://www.gnu.org/licenses/.
*
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
**********************************************************************/
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/ratelimit.h>
#include <net/dst.h>
#include <asm/octeon/octeon.h>
#include "ethernet-defines.h"
#include "octeon-ethernet.h"
#include "ethernet-util.h"
#include <asm/octeon/cvmx-helper.h>
#include <asm/octeon/cvmx-gmxx-defs.h>
int cvm_oct_sgmii_open(struct net_device *dev)
{
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
cvmx_helper_link_info_t link_info;
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
gmx_cfg.s.en = 1;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
if (!octeon_is_simulation()) {
link_info = cvmx_helper_link_get(priv->port);
if (!link_info.s.link_up)
netif_carrier_off(dev);
}
return 0;
}
int cvm_oct_sgmii_stop(struct net_device *dev)
{
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
gmx_cfg.s.en = 0;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
return 0;
}
static void cvm_oct_sgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info)
return;
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
/* Tell Linux */
if (link_info.s.link_up) {
if (!netif_carrier_ok(dev))
netif_carrier_on(dev);
if (priv->queue != -1)
printk_ratelimited
("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port, priv->queue);
else
printk_ratelimited
("%s: %u Mbps %s duplex, port %2d, POW\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port);
} else {
if (netif_carrier_ok(dev))
netif_carrier_off(dev);
printk_ratelimited("%s: Link down\n", dev->name);
}
}
int cvm_oct_sgmii_init(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvm_oct_common_init(dev);
dev->netdev_ops->ndo_stop(dev);
if (!octeon_is_simulation() && priv->phydev == NULL)
priv->poll = cvm_oct_sgmii_poll;
/* FIXME: Need autoneg logic */
return 0;
}
void cvm_oct_sgmii_uninit(struct net_device *dev)
{
cvm_oct_common_uninit(dev);
}
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