diff options
Diffstat (limited to 'target/linux/ramips/files/drivers/net/ethernet/ralink/mdio_rt2880.c')
-rw-r--r-- | target/linux/ramips/files/drivers/net/ethernet/ralink/mdio_rt2880.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mdio_rt2880.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mdio_rt2880.c deleted file mode 100644 index b99eb46de9..0000000000 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mdio_rt2880.c +++ /dev/null @@ -1,232 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - * - * Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org> - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/dma-mapping.h> -#include <linux/init.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> -#include <linux/platform_device.h> -#include <linux/phy.h> -#include <linux/of_device.h> -#include <linux/clk.h> -#include <linux/of_net.h> -#include <linux/of_mdio.h> - -#include "ralink_soc_eth.h" -#include "mdio_rt2880.h" -#include "mdio.h" - -#define FE_MDIO_RETRY 1000 - -static unsigned char *rt2880_speed_str(struct fe_priv *priv) -{ - switch (priv->phy->speed[0]) { - case SPEED_1000: - return "1000"; - case SPEED_100: - return "100"; - case SPEED_10: - return "10"; - } - - return "?"; -} - -void rt2880_mdio_link_adjust(struct fe_priv *priv, int port) -{ - u32 mdio_cfg; - - if (!priv->link[0]) { - netif_carrier_off(priv->netdev); - netdev_info(priv->netdev, "link down\n"); - return; - } - - mdio_cfg = FE_MDIO_CFG_TX_CLK_SKEW_200 | - FE_MDIO_CFG_RX_CLK_SKEW_200 | - FE_MDIO_CFG_GP1_FRC_EN; - - if (priv->phy->duplex[0] == DUPLEX_FULL) - mdio_cfg |= FE_MDIO_CFG_GP1_DUPLEX; - - if (priv->phy->tx_fc[0]) - mdio_cfg |= FE_MDIO_CFG_GP1_FC_TX; - - if (priv->phy->rx_fc[0]) - mdio_cfg |= FE_MDIO_CFG_GP1_FC_RX; - - switch (priv->phy->speed[0]) { - case SPEED_10: - mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_10; - break; - case SPEED_100: - mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_100; - break; - case SPEED_1000: - mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_1000; - break; - default: - BUG(); - } - - fe_w32(mdio_cfg, FE_MDIO_CFG); - - netif_carrier_on(priv->netdev); - netdev_info(priv->netdev, "link up (%sMbps/%s duplex)\n", - rt2880_speed_str(priv), - (DUPLEX_FULL == priv->phy->duplex[0]) ? "Full" : "Half"); -} - -static int rt2880_mdio_wait_ready(struct fe_priv *priv) -{ - int retries; - - retries = FE_MDIO_RETRY; - while (1) { - u32 t; - - t = fe_r32(FE_MDIO_ACCESS); - if ((t & (0x1 << 31)) == 0) - return 0; - - if (retries-- == 0) - break; - - udelay(1); - } - - dev_err(priv->device, "MDIO operation timed out\n"); - return -ETIMEDOUT; -} - -int rt2880_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg) -{ - struct fe_priv *priv = bus->priv; - int err; - u32 t; - - err = rt2880_mdio_wait_ready(priv); - if (err) - return 0xffff; - - t = (phy_addr << 24) | (phy_reg << 16); - fe_w32(t, FE_MDIO_ACCESS); - t |= (1 << 31); - fe_w32(t, FE_MDIO_ACCESS); - - err = rt2880_mdio_wait_ready(priv); - if (err) - return 0xffff; - - pr_debug("%s: addr=%04x, reg=%04x, value=%04x\n", __func__, - phy_addr, phy_reg, fe_r32(FE_MDIO_ACCESS) & 0xffff); - - return fe_r32(FE_MDIO_ACCESS) & 0xffff; -} - -int rt2880_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val) -{ - struct fe_priv *priv = bus->priv; - int err; - u32 t; - - pr_debug("%s: addr=%04x, reg=%04x, value=%04x\n", __func__, - phy_addr, phy_reg, fe_r32(FE_MDIO_ACCESS) & 0xffff); - - err = rt2880_mdio_wait_ready(priv); - if (err) - return err; - - t = (1 << 30) | (phy_addr << 24) | (phy_reg << 16) | val; - fe_w32(t, FE_MDIO_ACCESS); - t |= (1 << 31); - fe_w32(t, FE_MDIO_ACCESS); - - return rt2880_mdio_wait_ready(priv); -} - -void rt2880_port_init(struct fe_priv *priv, struct device_node *np) -{ - const __be32 *id = of_get_property(np, "reg", NULL); - const __be32 *link; - int size; - int phy_mode; - - if (!id || (be32_to_cpu(*id) != 0)) { - pr_err("%s: invalid port id\n", np->name); - return; - } - - priv->phy->phy_fixed[0] = of_get_property(np, "ralink,fixed-link", &size); - if (priv->phy->phy_fixed[0] && (size != (4 * sizeof(*priv->phy->phy_fixed[0])))) { - pr_err("%s: invalid fixed link property\n", np->name); - priv->phy->phy_fixed[0] = NULL; - return; - } - - phy_mode = of_get_phy_mode(np); - switch (phy_mode) { - case PHY_INTERFACE_MODE_RGMII: - break; - case PHY_INTERFACE_MODE_MII: - break; - case PHY_INTERFACE_MODE_RMII: - break; - default: - if (!priv->phy->phy_fixed[0]) - dev_err(priv->device, "port %d - invalid phy mode\n", priv->phy->speed[0]); - break; - } - - priv->phy->phy_node[0] = of_parse_phandle(np, "phy-handle", 0); - if (!priv->phy->phy_node[0] && !priv->phy->phy_fixed[0]) - return; - - if (priv->phy->phy_fixed[0]) { - link = priv->phy->phy_fixed[0]; - priv->phy->speed[0] = be32_to_cpup(link++); - priv->phy->duplex[0] = be32_to_cpup(link++); - priv->phy->tx_fc[0] = be32_to_cpup(link++); - priv->phy->rx_fc[0] = be32_to_cpup(link++); - - priv->link[0] = 1; - switch (priv->phy->speed[0]) { - case SPEED_10: - break; - case SPEED_100: - break; - case SPEED_1000: - break; - default: - dev_err(priv->device, "invalid link speed: %d\n", priv->phy->speed[0]); - priv->phy->phy_fixed[0] = 0; - return; - } - dev_info(priv->device, "using fixed link parameters\n"); - rt2880_mdio_link_adjust(priv, 0); - return; - } - if (priv->phy->phy_node[0] && priv->mii_bus->phy_map[0]) { - fe_connect_phy_node(priv, priv->phy->phy_node[0]); - } - - return; -} |