355 строки
8.7 KiB
C
355 строки
8.7 KiB
C
/*
|
|
* Copyright (c) 2005-2008 Chelsio, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include "regs.h"
|
|
|
|
enum {
|
|
/* MDIO_DEV_PMA_PMD registers */
|
|
AQ_LINK_STAT = 0xe800,
|
|
AQ_IMASK_PMA = 0xf000,
|
|
|
|
/* MDIO_DEV_XGXS registers */
|
|
AQ_XAUI_RX_CFG = 0xc400,
|
|
AQ_XAUI_TX_CFG = 0xe400,
|
|
|
|
/* MDIO_DEV_ANEG registers */
|
|
AQ_1G_CTRL = 0xc400,
|
|
AQ_ANEG_STAT = 0xc800,
|
|
|
|
/* MDIO_DEV_VEND1 registers */
|
|
AQ_FW_VERSION = 0x0020,
|
|
AQ_IFLAG_GLOBAL = 0xfc00,
|
|
AQ_IMASK_GLOBAL = 0xff00,
|
|
};
|
|
|
|
enum {
|
|
IMASK_PMA = 1 << 2,
|
|
IMASK_GLOBAL = 1 << 15,
|
|
ADV_1G_FULL = 1 << 15,
|
|
ADV_1G_HALF = 1 << 14,
|
|
ADV_10G_FULL = 1 << 12,
|
|
AQ_RESET = (1 << 14) | (1 << 15),
|
|
AQ_LOWPOWER = 1 << 12,
|
|
};
|
|
|
|
static int aq100x_reset(struct cphy *phy, int wait)
|
|
{
|
|
/*
|
|
* Ignore the caller specified wait time; always wait for the reset to
|
|
* complete. Can take up to 3s.
|
|
*/
|
|
int err = t3_phy_reset(phy, MDIO_MMD_VEND1, 3000);
|
|
|
|
if (err)
|
|
CH_WARN(phy->adapter, "PHY%d: reset failed (0x%x).\n",
|
|
phy->mdio.prtad, err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int aq100x_intr_enable(struct cphy *phy)
|
|
{
|
|
int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AQ_IMASK_PMA, IMASK_PMA);
|
|
if (err)
|
|
return err;
|
|
|
|
err = t3_mdio_write(phy, MDIO_MMD_VEND1, AQ_IMASK_GLOBAL, IMASK_GLOBAL);
|
|
return err;
|
|
}
|
|
|
|
static int aq100x_intr_disable(struct cphy *phy)
|
|
{
|
|
return t3_mdio_write(phy, MDIO_MMD_VEND1, AQ_IMASK_GLOBAL, 0);
|
|
}
|
|
|
|
static int aq100x_intr_clear(struct cphy *phy)
|
|
{
|
|
unsigned int v;
|
|
|
|
t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_IFLAG_GLOBAL, &v);
|
|
t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_STAT1, &v);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aq100x_intr_handler(struct cphy *phy)
|
|
{
|
|
int err;
|
|
unsigned int cause, v;
|
|
|
|
err = t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_IFLAG_GLOBAL, &cause);
|
|
if (err)
|
|
return err;
|
|
|
|
/* Read (and reset) the latching version of the status */
|
|
t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_STAT1, &v);
|
|
|
|
return cphy_cause_link_change;
|
|
}
|
|
|
|
static int aq100x_power_down(struct cphy *phy, int off)
|
|
{
|
|
return mdio_set_flag(&phy->mdio, phy->mdio.prtad,
|
|
MDIO_MMD_PMAPMD, MDIO_CTRL1,
|
|
MDIO_CTRL1_LPOWER, off);
|
|
}
|
|
|
|
static int aq100x_autoneg_enable(struct cphy *phy)
|
|
{
|
|
int err;
|
|
|
|
err = aq100x_power_down(phy, 0);
|
|
if (!err)
|
|
err = mdio_set_flag(&phy->mdio, phy->mdio.prtad,
|
|
MDIO_MMD_AN, MDIO_CTRL1,
|
|
BMCR_ANENABLE | BMCR_ANRESTART, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int aq100x_autoneg_restart(struct cphy *phy)
|
|
{
|
|
int err;
|
|
|
|
err = aq100x_power_down(phy, 0);
|
|
if (!err)
|
|
err = mdio_set_flag(&phy->mdio, phy->mdio.prtad,
|
|
MDIO_MMD_AN, MDIO_CTRL1,
|
|
BMCR_ANENABLE | BMCR_ANRESTART, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int aq100x_advertise(struct cphy *phy, unsigned int advertise_map)
|
|
{
|
|
unsigned int adv;
|
|
int err;
|
|
|
|
/* 10G advertisement */
|
|
adv = 0;
|
|
if (advertise_map & ADVERTISED_10000baseT_Full)
|
|
adv |= ADV_10G_FULL;
|
|
err = t3_mdio_change_bits(phy, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
|
|
ADV_10G_FULL, adv);
|
|
if (err)
|
|
return err;
|
|
|
|
/* 1G advertisement */
|
|
adv = 0;
|
|
if (advertise_map & ADVERTISED_1000baseT_Full)
|
|
adv |= ADV_1G_FULL;
|
|
if (advertise_map & ADVERTISED_1000baseT_Half)
|
|
adv |= ADV_1G_HALF;
|
|
err = t3_mdio_change_bits(phy, MDIO_MMD_AN, AQ_1G_CTRL,
|
|
ADV_1G_FULL | ADV_1G_HALF, adv);
|
|
if (err)
|
|
return err;
|
|
|
|
/* 100M, pause advertisement */
|
|
adv = 0;
|
|
if (advertise_map & ADVERTISED_100baseT_Half)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (advertise_map & ADVERTISED_100baseT_Full)
|
|
adv |= ADVERTISE_100FULL;
|
|
if (advertise_map & ADVERTISED_Pause)
|
|
adv |= ADVERTISE_PAUSE_CAP;
|
|
if (advertise_map & ADVERTISED_Asym_Pause)
|
|
adv |= ADVERTISE_PAUSE_ASYM;
|
|
err = t3_mdio_change_bits(phy, MDIO_MMD_AN, MDIO_AN_ADVERTISE,
|
|
0xfe0, adv);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int aq100x_set_loopback(struct cphy *phy, int mmd, int dir, int enable)
|
|
{
|
|
return mdio_set_flag(&phy->mdio, phy->mdio.prtad,
|
|
MDIO_MMD_PMAPMD, MDIO_CTRL1,
|
|
BMCR_LOOPBACK, enable);
|
|
}
|
|
|
|
static int aq100x_set_speed_duplex(struct cphy *phy, int speed, int duplex)
|
|
{
|
|
/* no can do */
|
|
return -1;
|
|
}
|
|
|
|
static int aq100x_get_link_status(struct cphy *phy, int *link_ok,
|
|
int *speed, int *duplex, int *fc)
|
|
{
|
|
int err;
|
|
unsigned int v;
|
|
|
|
if (link_ok) {
|
|
err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AQ_LINK_STAT, &v);
|
|
if (err)
|
|
return err;
|
|
|
|
*link_ok = v & 1;
|
|
if (!*link_ok)
|
|
return 0;
|
|
}
|
|
|
|
err = t3_mdio_read(phy, MDIO_MMD_AN, AQ_ANEG_STAT, &v);
|
|
if (err)
|
|
return err;
|
|
|
|
if (speed) {
|
|
switch (v & 0x6) {
|
|
case 0x6:
|
|
*speed = SPEED_10000;
|
|
break;
|
|
case 0x4:
|
|
*speed = SPEED_1000;
|
|
break;
|
|
case 0x2:
|
|
*speed = SPEED_100;
|
|
break;
|
|
case 0x0:
|
|
*speed = SPEED_10;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (duplex)
|
|
*duplex = v & 1 ? DUPLEX_FULL : DUPLEX_HALF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct cphy_ops aq100x_ops = {
|
|
.reset = aq100x_reset,
|
|
.intr_enable = aq100x_intr_enable,
|
|
.intr_disable = aq100x_intr_disable,
|
|
.intr_clear = aq100x_intr_clear,
|
|
.intr_handler = aq100x_intr_handler,
|
|
.autoneg_enable = aq100x_autoneg_enable,
|
|
.autoneg_restart = aq100x_autoneg_restart,
|
|
.advertise = aq100x_advertise,
|
|
.set_loopback = aq100x_set_loopback,
|
|
.set_speed_duplex = aq100x_set_speed_duplex,
|
|
.get_link_status = aq100x_get_link_status,
|
|
.power_down = aq100x_power_down,
|
|
.mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS,
|
|
};
|
|
|
|
int t3_aq100x_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr,
|
|
const struct mdio_ops *mdio_ops)
|
|
{
|
|
unsigned int v, v2, gpio, wait;
|
|
int err;
|
|
|
|
cphy_init(phy, adapter, phy_addr, &aq100x_ops, mdio_ops,
|
|
SUPPORTED_1000baseT_Full | SUPPORTED_10000baseT_Full |
|
|
SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_AUI,
|
|
"1000/10GBASE-T");
|
|
|
|
/*
|
|
* The PHY has been out of reset ever since the system powered up. So
|
|
* we do a hard reset over here.
|
|
*/
|
|
gpio = phy_addr ? F_GPIO10_OUT_VAL : F_GPIO6_OUT_VAL;
|
|
t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, gpio, 0);
|
|
msleep(1);
|
|
t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, gpio, gpio);
|
|
|
|
/*
|
|
* Give it enough time to load the firmware and get ready for mdio.
|
|
*/
|
|
msleep(1000);
|
|
wait = 500; /* in 10ms increments */
|
|
do {
|
|
err = t3_mdio_read(phy, MDIO_MMD_VEND1, MDIO_CTRL1, &v);
|
|
if (err || v == 0xffff) {
|
|
|
|
/* Allow prep_adapter to succeed when ffff is read */
|
|
|
|
CH_WARN(adapter, "PHY%d: reset failed (0x%x, 0x%x).\n",
|
|
phy_addr, err, v);
|
|
goto done;
|
|
}
|
|
|
|
v &= AQ_RESET;
|
|
if (v)
|
|
msleep(10);
|
|
} while (v && --wait);
|
|
if (v) {
|
|
CH_WARN(adapter, "PHY%d: reset timed out (0x%x).\n",
|
|
phy_addr, v);
|
|
|
|
goto done; /* let prep_adapter succeed */
|
|
}
|
|
|
|
/* Datasheet says 3s max but this has been observed */
|
|
wait = (500 - wait) * 10 + 1000;
|
|
if (wait > 3000)
|
|
CH_WARN(adapter, "PHY%d: reset took %ums\n", phy_addr, wait);
|
|
|
|
/* Firmware version check. */
|
|
t3_mdio_read(phy, MDIO_MMD_VEND1, AQ_FW_VERSION, &v);
|
|
if (v != 101)
|
|
CH_WARN(adapter, "PHY%d: unsupported firmware %d\n",
|
|
phy_addr, v);
|
|
|
|
/*
|
|
* The PHY should start in really-low-power mode. Prepare it for normal
|
|
* operations.
|
|
*/
|
|
err = t3_mdio_read(phy, MDIO_MMD_VEND1, MDIO_CTRL1, &v);
|
|
if (err)
|
|
return err;
|
|
if (v & AQ_LOWPOWER) {
|
|
err = t3_mdio_change_bits(phy, MDIO_MMD_VEND1, MDIO_CTRL1,
|
|
AQ_LOWPOWER, 0);
|
|
if (err)
|
|
return err;
|
|
msleep(10);
|
|
} else
|
|
CH_WARN(adapter, "PHY%d does not start in low power mode.\n",
|
|
phy_addr);
|
|
|
|
/*
|
|
* Verify XAUI settings, but let prep succeed no matter what.
|
|
*/
|
|
v = v2 = 0;
|
|
t3_mdio_read(phy, MDIO_MMD_PHYXS, AQ_XAUI_RX_CFG, &v);
|
|
t3_mdio_read(phy, MDIO_MMD_PHYXS, AQ_XAUI_TX_CFG, &v2);
|
|
if (v != 0x1b || v2 != 0x1b)
|
|
CH_WARN(adapter,
|
|
"PHY%d: incorrect XAUI settings (0x%x, 0x%x).\n",
|
|
phy_addr, v, v2);
|
|
|
|
done:
|
|
return err;
|
|
}
|