2 * Atheros AR71xx built-in ethernet mac driver
4 * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
7 * Based on Atheros' AG7100 driver
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
16 static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
30 static void ag71xx_phy_link_update(struct ag71xx *ag)
32 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
39 netif_carrier_off(ag->dev);
40 if (netif_msg_link(ag))
41 printk(KERN_INFO "%s: link down\n", ag->dev->name);
45 cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
46 cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
47 cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
49 ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
50 ifctl &= ~(MAC_IFCTL_SPEED);
52 fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
53 fifo5 &= ~FIFO_CFG5_BM;
57 mii_speed = MII_CTRL_SPEED_1000;
58 cfg2 |= MAC_CFG2_IF_1000;
59 fifo5 |= FIFO_CFG5_BM;
62 mii_speed = MII_CTRL_SPEED_100;
63 cfg2 |= MAC_CFG2_IF_10_100;
64 ifctl |= MAC_IFCTL_SPEED;
67 mii_speed = MII_CTRL_SPEED_10;
68 cfg2 |= MAC_CFG2_IF_10_100;
75 ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3,
76 pdata->is_ar91xx ? 0x780fff : 0x008001ff);
77 pdata->set_pll(ag->speed);
78 ag71xx_mii_ctrl_set_speed(ag, mii_speed);
80 ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
81 ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
82 ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
84 netif_carrier_on(ag->dev);
85 if (netif_msg_link(ag))
86 printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n",
89 (DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
91 DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n",
93 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
94 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
95 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
97 DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n",
99 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
100 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
101 ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
103 DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x, mii_ctrl=%#x\n",
105 ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
106 ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
107 ag71xx_mii_ctrl_rr(ag));
110 static void ag71xx_phy_link_adjust(struct net_device *dev)
112 struct ag71xx *ag = netdev_priv(dev);
113 struct phy_device *phydev = ag->phy_dev;
115 int status_change = 0;
117 spin_lock_irqsave(&ag->lock, flags);
120 if (ag->duplex != phydev->duplex
121 || ag->speed != phydev->speed) {
126 if (phydev->link != ag->link)
129 ag->link = phydev->link;
130 ag->duplex = phydev->duplex;
131 ag->speed = phydev->speed;
134 ag71xx_phy_link_update(ag);
136 spin_unlock_irqrestore(&ag->lock, flags);
139 void ag71xx_phy_start(struct ag71xx *ag)
142 phy_start(ag->phy_dev);
144 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
146 ag->duplex = pdata->duplex;
147 ag->speed = pdata->speed;
149 ag71xx_phy_link_update(ag);
153 void ag71xx_phy_stop(struct ag71xx *ag)
156 phy_stop(ag->phy_dev);
161 ag71xx_phy_link_update(ag);
165 static int ag71xx_phy_connect_fixed(struct ag71xx *ag)
167 struct net_device *dev = ag->dev;
168 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
171 /* use fixed settings */
172 switch (pdata->speed) {
178 printk(KERN_ERR "%s: invalid speed specified\n",
187 static int ag71xx_phy_connect_multi(struct ag71xx *ag)
189 struct net_device *dev = ag->dev;
190 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
191 struct phy_device *phydev = NULL;
196 for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
197 if (!(pdata->phy_mask & (1 << phy_addr)))
200 if (ag->mii_bus->phy_map[phy_addr] == NULL)
203 DBG("%s: PHY found at %s, uid=%08x\n",
205 dev_name(&ag->mii_bus->phy_map[phy_addr]->dev),
206 ag->mii_bus->phy_map[phy_addr]->phy_id);
209 phydev = ag->mii_bus->phy_map[phy_addr];
216 printk(KERN_ERR "%s: no PHY found with phy_mask=%08x\n",
217 dev->name, pdata->phy_mask);
221 ag->phy_dev = phy_connect(dev, dev_name(&phydev->dev),
222 &ag71xx_phy_link_adjust, 0, pdata->phy_if_mode);
224 if (IS_ERR(ag->phy_dev)) {
225 printk(KERN_ERR "%s: could not connect to PHY at %s\n",
226 dev->name, dev_name(&phydev->dev));
227 return PTR_ERR(ag->phy_dev);
230 /* mask with MAC supported features */
232 phydev->supported &= PHY_GBIT_FEATURES;
234 phydev->supported &= PHY_BASIC_FEATURES;
236 phydev->advertising = phydev->supported;
238 printk(KERN_DEBUG "%s: connected to PHY at %s "
239 "[uid=%08x, driver=%s]\n",
240 dev->name, dev_name(&phydev->dev),
241 phydev->phy_id, phydev->drv->name);
249 printk(KERN_DEBUG "%s: connected to %d PHYs\n",
250 dev->name, phy_count);
251 ret = ag71xx_phy_connect_fixed(ag);
258 int ag71xx_phy_connect(struct ag71xx *ag)
260 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
263 return ag71xx_phy_connect_multi(ag);
265 return ag71xx_phy_connect_fixed(ag);
268 void ag71xx_phy_disconnect(struct ag71xx *ag)
271 phy_disconnect(ag->phy_dev);