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/*
* This file is part of the Chelsio T3 Ethernet driver.
*
* Copyright (C) 2005-2006 Chelsio Communications. All rights reserved.
*
* 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 LICENSE file included in this
* release for licensing terms and conditions.
*/
#include "common.h"
#include "regs.h"
enum {
AEL100X_TX_DISABLE = 9,
AEL100X_TX_CONFIG1 = 0xc002,
AEL1002_PWR_DOWN_HI = 0xc011,
AEL1002_PWR_DOWN_LO = 0xc012,
AEL1002_XFI_EQL = 0xc015,
AEL1002_LB_EN = 0xc017,
LASI_CTRL = 0x9002,
LASI_STAT = 0x9005
};
static void ael100x_txon(struct cphy *phy)
{
int tx_on_gpio = phy->addr == 0 ? F_GPIO7_OUT_VAL : F_GPIO2_OUT_VAL;
msleep(100);
t3_set_reg_field(phy->adapter, A_T3DBG_GPIO_EN, 0, tx_on_gpio);
msleep(30);
}
static int ael1002_power_down(struct cphy *phy, int enable)
{
int err;
err = mdio_write(phy, MDIO_DEV_PMA_PMD, AEL100X_TX_DISABLE, !!enable);
if (!err)
err = t3_mdio_change_bits(phy, MDIO_DEV_PMA_PMD, MII_BMCR,
BMCR_PDOWN, enable ? BMCR_PDOWN : 0);
return err;
}
static int ael1002_reset(struct cphy *phy, int wait)
{
int err;
if ((err = ael1002_power_down(phy, 0)) ||
(err = mdio_write(phy, MDIO_DEV_PMA_PMD, AEL100X_TX_CONFIG1, 1)) ||
(err = mdio_write(phy, MDIO_DEV_PMA_PMD, AEL1002_PWR_DOWN_HI, 0)) ||
(err = mdio_write(phy, MDIO_DEV_PMA_PMD, AEL1002_PWR_DOWN_LO, 0)) ||
(err = mdio_write(phy, MDIO_DEV_PMA_PMD, AEL1002_XFI_EQL, 0x18)) ||
(err = t3_mdio_change_bits(phy, MDIO_DEV_PMA_PMD, AEL1002_LB_EN,
0, 1 << 5)))
return err;
return 0;
}
static int ael1002_intr_noop(struct cphy *phy)
{
return 0;
}
static int ael100x_get_link_status(struct cphy *phy, int *link_ok,
int *speed, int *duplex, int *fc)
{
if (link_ok) {
unsigned int status;
int err = mdio_read(phy, MDIO_DEV_PMA_PMD, MII_BMSR, &status);
/*
* BMSR_LSTATUS is latch-low, so if it is 0 we need to read it
* once more to get the current link state.
*/
if (!err && !(status & BMSR_LSTATUS))
err = mdio_read(phy, MDIO_DEV_PMA_PMD, MII_BMSR,
&status);
if (err)
return err;
*link_ok = !!(status & BMSR_LSTATUS);
}
if (speed)
*speed = SPEED_10000;
if (duplex)
*duplex = DUPLEX_FULL;
return 0;
}
static struct cphy_ops ael1002_ops = {
.reset = ael1002_reset,
.intr_enable = ael1002_intr_noop,
.intr_disable = ael1002_intr_noop,
.intr_clear = ael1002_intr_noop,
.intr_handler = ael1002_intr_noop,
.get_link_status = ael100x_get_link_status,
.power_down = ael1002_power_down,
};
void t3_ael1002_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
cphy_init(phy, adapter, phy_addr, &ael1002_ops, mdio_ops);
ael100x_txon(phy);
}
static int ael1006_reset(struct cphy *phy, int wait)
{
return t3_phy_reset(phy, MDIO_DEV_PMA_PMD, wait);
}
static int ael1006_intr_enable(struct cphy *phy)
{
return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 1);
}
static int ael1006_intr_disable(struct cphy *phy)
{
return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 0);
}
static int ael1006_intr_clear(struct cphy *phy)
{
u32 val;
return mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &val);
}
static int ael1006_intr_handler(struct cphy *phy)
{
unsigned int status;
int err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &status);
if (err)
return err;
return (status & 1) ? cphy_cause_link_change : 0;
}
static int ael1006_power_down(struct cphy *phy, int enable)
{
return t3_mdio_change_bits(phy, MDIO_DEV_PMA_PMD, MII_BMCR,
BMCR_PDOWN, enable ? BMCR_PDOWN : 0);
}
static struct cphy_ops ael1006_ops = {
.reset = ael1006_reset,
.intr_enable = ael1006_intr_enable,
.intr_disable = ael1006_intr_disable,
.intr_clear = ael1006_intr_clear,
.intr_handler = ael1006_intr_handler,
.get_link_status = ael100x_get_link_status,
.power_down = ael1006_power_down,
};
void t3_ael1006_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
cphy_init(phy, adapter, phy_addr, &ael1006_ops, mdio_ops);
ael100x_txon(phy);
}
static struct cphy_ops qt2045_ops = {
.reset = ael1006_reset,
.intr_enable = ael1006_intr_enable,
.intr_disable = ael1006_intr_disable,
.intr_clear = ael1006_intr_clear,
.intr_handler = ael1006_intr_handler,
.get_link_status = ael100x_get_link_status,
.power_down = ael1006_power_down,
};
void t3_qt2045_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
unsigned int stat;
cphy_init(phy, adapter, phy_addr, &qt2045_ops, mdio_ops);
/*
* Some cards where the PHY is supposed to be at address 0 actually
* have it at 1.
*/
if (!phy_addr && !mdio_read(phy, MDIO_DEV_PMA_PMD, MII_BMSR, &stat) &&
stat == 0xffff)
phy->addr = 1;
}
static int xaui_direct_reset(struct cphy *phy, int wait)
{
return 0;
}
static int xaui_direct_get_link_status(struct cphy *phy, int *link_ok,
int *speed, int *duplex, int *fc)
{
if (link_ok) {
unsigned int status;
status = t3_read_reg(phy->adapter,
XGM_REG(A_XGM_SERDES_STAT0, phy->addr));
*link_ok = !(status & F_LOWSIG0);
}
if (speed)
*speed = SPEED_10000;
if (duplex)
*duplex = DUPLEX_FULL;
return 0;
}
static int xaui_direct_power_down(struct cphy *phy, int enable)
{
return 0;
}
static struct cphy_ops xaui_direct_ops = {
.reset = xaui_direct_reset,
.intr_enable = ael1002_intr_noop,
.intr_disable = ael1002_intr_noop,
.intr_clear = ael1002_intr_noop,
.intr_handler = ael1002_intr_noop,
.get_link_status = xaui_direct_get_link_status,
.power_down = xaui_direct_power_down,
};
void t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *mdio_ops)
{
cphy_init(phy, adapter, 1, &xaui_direct_ops, mdio_ops);
}
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