From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/staging/octeon/ethernet-sgmii.c | 141 ++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 drivers/staging/octeon/ethernet-sgmii.c (limited to 'drivers/staging/octeon/ethernet-sgmii.c') diff --git a/drivers/staging/octeon/ethernet-sgmii.c b/drivers/staging/octeon/ethernet-sgmii.c new file mode 100644 index 000000000..21a7a17ac --- /dev/null +++ b/drivers/staging/octeon/ethernet-sgmii.c @@ -0,0 +1,141 @@ +/********************************************************************** + * 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 +#include +#include +#include +#include + +#include + +#include "ethernet-defines.h" +#include "octeon-ethernet.h" +#include "ethernet-util.h" +#include "ethernet-mdio.h" + +#include + +#include + +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_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; + int rv; + + rv = cvm_oct_phy_setup_device(dev); + if (rv) + return rv; + + 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()) + return 0; + + if (priv->phydev) { + int r = phy_read_status(priv->phydev); + + if (r == 0 && priv->phydev->link == 0) + netif_carrier_off(dev); + cvm_oct_adjust_link(dev); + } else { + link_info = cvmx_helper_link_get(priv->port); + if (!link_info.s.link_up) + netif_carrier_off(dev); + priv->poll = cvm_oct_sgmii_poll; + cvm_oct_sgmii_poll(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 cvm_oct_common_stop(dev); +} + +int cvm_oct_sgmii_init(struct net_device *dev) +{ + cvm_oct_common_init(dev); + dev->netdev_ops->ndo_stop(dev); + + /* FIXME: Need autoneg logic */ + return 0; +} + +void cvm_oct_sgmii_uninit(struct net_device *dev) +{ + cvm_oct_common_uninit(dev); +} -- cgit v1.2.3-54-g00ecf