1 /**************************************************************************
3 Copyright (c) 2008, Chelsio Inc.
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Neither the name of the Chelsio Corporation nor the names of its
13 contributors may be used to endorse or promote products derived from
14 this software without specific prior written permission.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 POSSIBILITY OF SUCH DAMAGE.
28 ***************************************************************************/
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
34 #include <cxgb_include.h>
36 #include <dev/cxgb/cxgb_include.h>
40 #define msleep t3_os_sleep
42 /* TN1010 PHY specific registers. */
44 TN1010_VEND1_STAT = 1,
47 /* IEEE auto-negotiation 10GBASE-T registers */
55 #define ADVERTISE_ENPAGE (1 << 12)
56 #define ADVERTISE_10000FULL (1 << 12)
57 #define ADVERTISE_LOOP_TIMING (1 << 0)
59 /* vendor specific status register fields */
60 #define F_XS_LANE_ALIGN_STAT (1 << 0)
61 #define F_PCS_BLK_LOCK (1 << 1)
62 #define F_PMD_SIGNAL_OK (1 << 2)
63 #define F_LINK_STAT (1 << 3)
64 #define F_ANEG_SPEED_1G (1 << 4)
65 #define F_ANEG_MASTER (1 << 5)
68 #define M_ANEG_STAT 0x3
69 #define G_ANEG_STAT(x) (((x) >> S_ANEG_STAT) & M_ANEG_STAT)
71 enum { /* autonegotiation status */
78 * Reset the PHY. May take up to 500ms to complete.
80 static int tn1010_reset(struct cphy *phy, int wait)
82 int err = t3_phy_reset(phy, MDIO_DEV_PMA_PMD, wait);
87 static int tn1010_power_down(struct cphy *phy, int enable)
89 return t3_mdio_change_bits(phy, MDIO_DEV_PMA_PMD, MII_BMCR,
90 BMCR_PDOWN, enable ? BMCR_PDOWN : 0);
93 static int tn1010_autoneg_enable(struct cphy *phy)
97 err = tn1010_power_down(phy, 0);
99 err = t3_mdio_change_bits(phy, MDIO_DEV_ANEG, MII_BMCR, 0,
100 BMCR_ANENABLE | BMCR_ANRESTART);
104 static int tn1010_autoneg_restart(struct cphy *phy)
108 err = tn1010_power_down(phy, 0);
110 err = t3_mdio_change_bits(phy, MDIO_DEV_ANEG, MII_BMCR, 0,
115 static int tn1010_advertise(struct cphy *phy, unsigned int advert)
119 if (!(advert & ADVERTISED_1000baseT_Full))
120 return -EINVAL; /* PHY can't disable 1000BASE-T */
122 val = ADVERTISE_CSMA | ADVERTISE_ENPAGE | ADVERTISE_NPAGE;
123 if (advert & ADVERTISED_Pause)
124 val |= ADVERTISE_PAUSE_CAP;
125 if (advert & ADVERTISED_Asym_Pause)
126 val |= ADVERTISE_PAUSE_ASYM;
127 err = mdio_write(phy, MDIO_DEV_ANEG, ANEG_ADVER, val);
131 val = (advert & ADVERTISED_10000baseT_Full) ? ADVERTISE_10000FULL : 0;
132 return mdio_write(phy, MDIO_DEV_ANEG, ANEG_10G_CTRL, val |
133 ADVERTISE_LOOP_TIMING);
136 static int tn1010_get_link_status(struct cphy *phy, int *link_ok,
137 int *speed, int *duplex, int *fc)
139 unsigned int status, lpa, adv;
140 int err, sp = -1, pause = 0;
142 err = mdio_read(phy, MDIO_DEV_VEND1, TN1010_VEND1_STAT, &status);
147 *link_ok = (status & F_LINK_STAT) != 0;
149 if (G_ANEG_STAT(status) == ANEG_COMPLETE) {
150 sp = (status & F_ANEG_SPEED_1G) ? SPEED_1000 : SPEED_10000;
153 err = mdio_read(phy, MDIO_DEV_ANEG, ANEG_LPA, &lpa);
155 err = mdio_read(phy, MDIO_DEV_ANEG, ANEG_ADVER,
160 if (lpa & adv & ADVERTISE_PAUSE_CAP)
161 pause = PAUSE_RX | PAUSE_TX;
162 else if ((lpa & ADVERTISE_PAUSE_CAP) &&
163 (lpa & ADVERTISE_PAUSE_ASYM) &&
164 (adv & ADVERTISE_PAUSE_ASYM))
166 else if ((lpa & ADVERTISE_PAUSE_ASYM) &&
167 (adv & ADVERTISE_PAUSE_CAP))
174 *duplex = DUPLEX_FULL;
180 static int tn1010_set_speed_duplex(struct cphy *phy, int speed, int duplex)
182 return -EINVAL; /* require autoneg */
185 #ifdef C99_NOT_SUPPORTED
186 static struct cphy_ops tn1010_ops = {
188 t3_phy_lasi_intr_enable,
189 t3_phy_lasi_intr_disable,
190 t3_phy_lasi_intr_clear,
191 t3_phy_lasi_intr_handler,
192 tn1010_autoneg_enable,
193 tn1010_autoneg_restart,
196 tn1010_set_speed_duplex,
197 tn1010_get_link_status,
201 static struct cphy_ops tn1010_ops = {
202 .reset = tn1010_reset,
203 .intr_enable = t3_phy_lasi_intr_enable,
204 .intr_disable = t3_phy_lasi_intr_disable,
205 .intr_clear = t3_phy_lasi_intr_clear,
206 .intr_handler = t3_phy_lasi_intr_handler,
207 .autoneg_enable = tn1010_autoneg_enable,
208 .autoneg_restart = tn1010_autoneg_restart,
209 .advertise = tn1010_advertise,
210 .set_speed_duplex = tn1010_set_speed_duplex,
211 .get_link_status = tn1010_get_link_status,
212 .power_down = tn1010_power_down,
216 int t3_tn1010_phy_prep(struct cphy *phy, adapter_t *adapter, int phy_addr,
217 const struct mdio_ops *mdio_ops)
219 cphy_init(phy, adapter, phy_addr, &tn1010_ops, mdio_ops,
220 SUPPORTED_1000baseT_Full | SUPPORTED_10000baseT_Full |
221 SUPPORTED_Autoneg | SUPPORTED_AUI | SUPPORTED_TP,
223 msleep(500); /* PHY needs up to 500ms to start responding to MDIO */