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marvell10g.c
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marvell10g.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Marvell 10G 88x3310 PHY driver
*
* Based upon the ID registers, this PHY appears to be a mixture of IPs
* from two different companies.
*
* There appears to be several different data paths through the PHY which
* are automatically managed by the PHY. The following has been determined
* via observation and experimentation for a setup using single-lane Serdes:
*
* SGMII PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for <= 1G)
* 10GBASE-KR PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for 10G)
* 10GBASE-KR PHYXS -- BASE-R PCS -- Fiber
*
* With XAUI, observation shows:
*
* XAUI PHYXS -- <appropriate PCS as above>
*
* and no switching of the host interface mode occurs.
*
* If both the fiber and copper ports are connected, the first to gain
* link takes priority and the other port is completely locked out.
*/
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/hwmon.h>
#include <linux/marvell_phy.h>
#include <linux/phy.h>
#include <linux/sfp.h>
#define MV_PHY_ALASKA_NBT_QUIRK_MASK 0xfffffffe
#define MV_PHY_ALASKA_NBT_QUIRK_REV (MARVELL_PHY_ID_88X3310 | 0xa)
enum {
MV_PMA_FW_VER0 = 0xc011,
MV_PMA_FW_VER1 = 0xc012,
MV_PMA_21X0_PORT_CTRL = 0xc04a,
MV_PMA_21X0_PORT_CTRL_SWRST = BIT(15),
MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK = 0x7,
MV_PMA_21X0_PORT_CTRL_MACTYPE_USXGMII = 0x0,
MV_PMA_2180_PORT_CTRL_MACTYPE_DXGMII = 0x1,
MV_PMA_2180_PORT_CTRL_MACTYPE_QXGMII = 0x2,
MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER = 0x4,
MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER_NO_SGMII_AN = 0x5,
MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH = 0x6,
MV_PMA_BOOT = 0xc050,
MV_PMA_BOOT_FATAL = BIT(0),
MV_PCS_BASE_T = 0x0000,
MV_PCS_BASE_R = 0x1000,
MV_PCS_1000BASEX = 0x2000,
MV_PCS_CSCR1 = 0x8000,
MV_PCS_CSCR1_ED_MASK = 0x0300,
MV_PCS_CSCR1_ED_OFF = 0x0000,
MV_PCS_CSCR1_ED_RX = 0x0200,
MV_PCS_CSCR1_ED_NLP = 0x0300,
MV_PCS_CSCR1_MDIX_MASK = 0x0060,
MV_PCS_CSCR1_MDIX_MDI = 0x0000,
MV_PCS_CSCR1_MDIX_MDIX = 0x0020,
MV_PCS_CSCR1_MDIX_AUTO = 0x0060,
MV_PCS_CSSR1 = 0x8008,
MV_PCS_CSSR1_SPD1_MASK = 0xc000,
MV_PCS_CSSR1_SPD1_SPD2 = 0xc000,
MV_PCS_CSSR1_SPD1_1000 = 0x8000,
MV_PCS_CSSR1_SPD1_100 = 0x4000,
MV_PCS_CSSR1_SPD1_10 = 0x0000,
MV_PCS_CSSR1_DUPLEX_FULL= BIT(13),
MV_PCS_CSSR1_RESOLVED = BIT(11),
MV_PCS_CSSR1_MDIX = BIT(6),
MV_PCS_CSSR1_SPD2_MASK = 0x000c,
MV_PCS_CSSR1_SPD2_5000 = 0x0008,
MV_PCS_CSSR1_SPD2_2500 = 0x0004,
MV_PCS_CSSR1_SPD2_10000 = 0x0000,
/* Temperature read register (88E2110 only) */
MV_PCS_TEMP = 0x8042,
/* Number of ports on the device */
MV_PCS_PORT_INFO = 0xd00d,
MV_PCS_PORT_INFO_NPORTS_MASK = 0x0380,
MV_PCS_PORT_INFO_NPORTS_SHIFT = 7,
/* These registers appear at 0x800X and 0xa00X - the 0xa00X control
* registers appear to set themselves to the 0x800X when AN is
* restarted, but status registers appear readable from either.
*/
MV_AN_CTRL1000 = 0x8000, /* 1000base-T control register */
MV_AN_STAT1000 = 0x8001, /* 1000base-T status register */
/* Vendor2 MMD registers */
MV_V2_PORT_CTRL = 0xf001,
MV_V2_PORT_CTRL_PWRDOWN = BIT(11),
MV_V2_33X0_PORT_CTRL_SWRST = BIT(15),
MV_V2_33X0_PORT_CTRL_MACTYPE_MASK = 0x7,
MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI = 0x0,
MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH = 0x1,
MV_V2_3340_PORT_CTRL_MACTYPE_RXAUI_NO_SGMII_AN = 0x1,
MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH = 0x2,
MV_V2_3310_PORT_CTRL_MACTYPE_XAUI = 0x3,
MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER = 0x4,
MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_NO_SGMII_AN = 0x5,
MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH = 0x6,
MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII = 0x7,
/* Temperature control/read registers (88X3310 only) */
MV_V2_TEMP_CTRL = 0xf08a,
MV_V2_TEMP_CTRL_MASK = 0xc000,
MV_V2_TEMP_CTRL_SAMPLE = 0x0000,
MV_V2_TEMP_CTRL_DISABLE = 0xc000,
MV_V2_TEMP = 0xf08c,
MV_V2_TEMP_UNKNOWN = 0x9600, /* unknown function */
};
struct mv3310_chip {
void (*init_supported_interfaces)(unsigned long *mask);
int (*get_mactype)(struct phy_device *phydev);
int (*init_interface)(struct phy_device *phydev, int mactype);
#ifdef CONFIG_HWMON
int (*hwmon_read_temp_reg)(struct phy_device *phydev);
#endif
};
struct mv3310_priv {
DECLARE_BITMAP(supported_interfaces, PHY_INTERFACE_MODE_MAX);
u32 firmware_ver;
bool rate_match;
phy_interface_t const_interface;
struct device *hwmon_dev;
char *hwmon_name;
};
static const struct mv3310_chip *to_mv3310_chip(struct phy_device *phydev)
{
return phydev->drv->driver_data;
}
#ifdef CONFIG_HWMON
static umode_t mv3310_hwmon_is_visible(const void *data,
enum hwmon_sensor_types type,
u32 attr, int channel)
{
if (type == hwmon_chip && attr == hwmon_chip_update_interval)
return 0444;
if (type == hwmon_temp && attr == hwmon_temp_input)
return 0444;
return 0;
}
static int mv3310_hwmon_read_temp_reg(struct phy_device *phydev)
{
return phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP);
}
static int mv2110_hwmon_read_temp_reg(struct phy_device *phydev)
{
return phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_TEMP);
}
static int mv3310_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *value)
{
struct phy_device *phydev = dev_get_drvdata(dev);
const struct mv3310_chip *chip = to_mv3310_chip(phydev);
int temp;
if (type == hwmon_chip && attr == hwmon_chip_update_interval) {
*value = MSEC_PER_SEC;
return 0;
}
if (type == hwmon_temp && attr == hwmon_temp_input) {
temp = chip->hwmon_read_temp_reg(phydev);
if (temp < 0)
return temp;
*value = ((temp & 0xff) - 75) * 1000;
return 0;
}
return -EOPNOTSUPP;
}
static const struct hwmon_ops mv3310_hwmon_ops = {
.is_visible = mv3310_hwmon_is_visible,
.read = mv3310_hwmon_read,
};
static u32 mv3310_hwmon_chip_config[] = {
HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
0,
};
static const struct hwmon_channel_info mv3310_hwmon_chip = {
.type = hwmon_chip,
.config = mv3310_hwmon_chip_config,
};
static u32 mv3310_hwmon_temp_config[] = {
HWMON_T_INPUT,
0,
};
static const struct hwmon_channel_info mv3310_hwmon_temp = {
.type = hwmon_temp,
.config = mv3310_hwmon_temp_config,
};
static const struct hwmon_channel_info *mv3310_hwmon_info[] = {
&mv3310_hwmon_chip,
&mv3310_hwmon_temp,
NULL,
};
static const struct hwmon_chip_info mv3310_hwmon_chip_info = {
.ops = &mv3310_hwmon_ops,
.info = mv3310_hwmon_info,
};
static int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
{
u16 val;
int ret;
if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310)
return 0;
ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP,
MV_V2_TEMP_UNKNOWN);
if (ret < 0)
return ret;
val = enable ? MV_V2_TEMP_CTRL_SAMPLE : MV_V2_TEMP_CTRL_DISABLE;
return phy_modify_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP_CTRL,
MV_V2_TEMP_CTRL_MASK, val);
}
static int mv3310_hwmon_probe(struct phy_device *phydev)
{
struct device *dev = &phydev->mdio.dev;
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
int i, j, ret;
priv->hwmon_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
if (!priv->hwmon_name)
return -ENODEV;
for (i = j = 0; priv->hwmon_name[i]; i++) {
if (isalnum(priv->hwmon_name[i])) {
if (i != j)
priv->hwmon_name[j] = priv->hwmon_name[i];
j++;
}
}
priv->hwmon_name[j] = '\0';
ret = mv3310_hwmon_config(phydev, true);
if (ret)
return ret;
priv->hwmon_dev = devm_hwmon_device_register_with_info(dev,
priv->hwmon_name, phydev,
&mv3310_hwmon_chip_info, NULL);
return PTR_ERR_OR_ZERO(priv->hwmon_dev);
}
#else
static inline int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
{
return 0;
}
static int mv3310_hwmon_probe(struct phy_device *phydev)
{
return 0;
}
#endif
static int mv3310_power_down(struct phy_device *phydev)
{
return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
MV_V2_PORT_CTRL_PWRDOWN);
}
static int mv3310_power_up(struct phy_device *phydev)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
int ret;
ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
MV_V2_PORT_CTRL_PWRDOWN);
if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310 ||
priv->firmware_ver < 0x00030000)
return ret;
return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
MV_V2_33X0_PORT_CTRL_SWRST);
}
static int mv3310_reset(struct phy_device *phydev, u32 unit)
{
int val, err;
err = phy_modify_mmd(phydev, MDIO_MMD_PCS, unit + MDIO_CTRL1,
MDIO_CTRL1_RESET, MDIO_CTRL1_RESET);
if (err < 0)
return err;
return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_PCS,
unit + MDIO_CTRL1, val,
!(val & MDIO_CTRL1_RESET),
5000, 100000, true);
}
static int mv3310_get_edpd(struct phy_device *phydev, u16 *edpd)
{
int val;
val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1);
if (val < 0)
return val;
switch (val & MV_PCS_CSCR1_ED_MASK) {
case MV_PCS_CSCR1_ED_NLP:
*edpd = 1000;
break;
case MV_PCS_CSCR1_ED_RX:
*edpd = ETHTOOL_PHY_EDPD_NO_TX;
break;
default:
*edpd = ETHTOOL_PHY_EDPD_DISABLE;
break;
}
return 0;
}
static int mv3310_set_edpd(struct phy_device *phydev, u16 edpd)
{
u16 val;
int err;
switch (edpd) {
case 1000:
case ETHTOOL_PHY_EDPD_DFLT_TX_MSECS:
val = MV_PCS_CSCR1_ED_NLP;
break;
case ETHTOOL_PHY_EDPD_NO_TX:
val = MV_PCS_CSCR1_ED_RX;
break;
case ETHTOOL_PHY_EDPD_DISABLE:
val = MV_PCS_CSCR1_ED_OFF;
break;
default:
return -EINVAL;
}
err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
MV_PCS_CSCR1_ED_MASK, val);
if (err > 0)
err = mv3310_reset(phydev, MV_PCS_BASE_T);
return err;
}
static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
{
struct phy_device *phydev = upstream;
__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
phy_interface_t iface;
sfp_parse_support(phydev->sfp_bus, id, support);
iface = sfp_select_interface(phydev->sfp_bus, support);
if (iface != PHY_INTERFACE_MODE_10GBASER) {
dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");
return -EINVAL;
}
return 0;
}
static const struct sfp_upstream_ops mv3310_sfp_ops = {
.attach = phy_sfp_attach,
.detach = phy_sfp_detach,
.module_insert = mv3310_sfp_insert,
};
static int mv3310_probe(struct phy_device *phydev)
{
const struct mv3310_chip *chip = to_mv3310_chip(phydev);
struct mv3310_priv *priv;
u32 mmd_mask = MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
int ret;
if (!phydev->is_c45 ||
(phydev->c45_ids.devices_in_package & mmd_mask) != mmd_mask)
return -ENODEV;
ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_BOOT);
if (ret < 0)
return ret;
if (ret & MV_PMA_BOOT_FATAL) {
dev_warn(&phydev->mdio.dev,
"PHY failed to boot firmware, status=%04x\n", ret);
return -ENODEV;
}
priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
dev_set_drvdata(&phydev->mdio.dev, priv);
ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER0);
if (ret < 0)
return ret;
priv->firmware_ver = ret << 16;
ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER1);
if (ret < 0)
return ret;
priv->firmware_ver |= ret;
phydev_info(phydev, "Firmware version %u.%u.%u.%u\n",
priv->firmware_ver >> 24, (priv->firmware_ver >> 16) & 255,
(priv->firmware_ver >> 8) & 255, priv->firmware_ver & 255);
/* Powering down the port when not in use saves about 600mW */
ret = mv3310_power_down(phydev);
if (ret)
return ret;
ret = mv3310_hwmon_probe(phydev);
if (ret)
return ret;
chip->init_supported_interfaces(priv->supported_interfaces);
return phy_sfp_probe(phydev, &mv3310_sfp_ops);
}
static void mv3310_remove(struct phy_device *phydev)
{
mv3310_hwmon_config(phydev, false);
}
static int mv3310_suspend(struct phy_device *phydev)
{
return mv3310_power_down(phydev);
}
static int mv3310_resume(struct phy_device *phydev)
{
int ret;
ret = mv3310_power_up(phydev);
if (ret)
return ret;
return mv3310_hwmon_config(phydev, true);
}
/* Some PHYs in the Alaska family such as the 88X3310 and the 88E2010
* don't set bit 14 in PMA Extended Abilities (1.11), although they do
* support 2.5GBASET and 5GBASET. For these models, we can still read their
* 2.5G/5G extended abilities register (1.21). We detect these models based on
* the PMA device identifier, with a mask matching models known to have this
* issue
*/
static bool mv3310_has_pma_ngbaset_quirk(struct phy_device *phydev)
{
if (!(phydev->c45_ids.devices_in_package & MDIO_DEVS_PMAPMD))
return false;
/* Only some revisions of the 88X3310 family PMA seem to be impacted */
return (phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
MV_PHY_ALASKA_NBT_QUIRK_MASK) == MV_PHY_ALASKA_NBT_QUIRK_REV;
}
static int mv2110_get_mactype(struct phy_device *phydev)
{
int mactype;
mactype = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_21X0_PORT_CTRL);
if (mactype < 0)
return mactype;
return mactype & MV_PMA_21X0_PORT_CTRL_MACTYPE_MASK;
}
static int mv3310_get_mactype(struct phy_device *phydev)
{
int mactype;
mactype = phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL);
if (mactype < 0)
return mactype;
return mactype & MV_V2_33X0_PORT_CTRL_MACTYPE_MASK;
}
static int mv2110_init_interface(struct phy_device *phydev, int mactype)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
priv->rate_match = false;
if (mactype == MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH)
priv->rate_match = true;
if (mactype == MV_PMA_21X0_PORT_CTRL_MACTYPE_USXGMII)
priv->const_interface = PHY_INTERFACE_MODE_USXGMII;
else if (mactype == MV_PMA_21X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH)
priv->const_interface = PHY_INTERFACE_MODE_10GBASER;
else if (mactype == MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER ||
mactype == MV_PMA_21X0_PORT_CTRL_MACTYPE_5GBASER_NO_SGMII_AN)
priv->const_interface = PHY_INTERFACE_MODE_NA;
else
return -EINVAL;
return 0;
}
static int mv3310_init_interface(struct phy_device *phydev, int mactype)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
priv->rate_match = false;
if (mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH ||
mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH ||
mactype == MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH)
priv->rate_match = true;
if (mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_USXGMII)
priv->const_interface = PHY_INTERFACE_MODE_USXGMII;
else if (mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_RATE_MATCH ||
mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER_NO_SGMII_AN ||
mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_10GBASER)
priv->const_interface = PHY_INTERFACE_MODE_10GBASER;
else if (mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI_RATE_MATCH ||
mactype == MV_V2_33X0_PORT_CTRL_MACTYPE_RXAUI)
priv->const_interface = PHY_INTERFACE_MODE_RXAUI;
else if (mactype == MV_V2_3310_PORT_CTRL_MACTYPE_XAUI_RATE_MATCH ||
mactype == MV_V2_3310_PORT_CTRL_MACTYPE_XAUI)
priv->const_interface = PHY_INTERFACE_MODE_XAUI;
else
return -EINVAL;
return 0;
}
static int mv3340_init_interface(struct phy_device *phydev, int mactype)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
int err = 0;
priv->rate_match = false;
if (mactype == MV_V2_3340_PORT_CTRL_MACTYPE_RXAUI_NO_SGMII_AN)
priv->const_interface = PHY_INTERFACE_MODE_RXAUI;
else
err = mv3310_init_interface(phydev, mactype);
return err;
}
static int mv3310_config_init(struct phy_device *phydev)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
const struct mv3310_chip *chip = to_mv3310_chip(phydev);
int err, mactype;
/* Check that the PHY interface type is compatible */
if (!test_bit(phydev->interface, priv->supported_interfaces))
return -ENODEV;
phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
/* Power up so reset works */
err = mv3310_power_up(phydev);
if (err)
return err;
mactype = chip->get_mactype(phydev);
if (mactype < 0)
return mactype;
err = chip->init_interface(phydev, mactype);
if (err) {
phydev_err(phydev, "MACTYPE configuration invalid\n");
return err;
}
/* Enable EDPD mode - saving 600mW */
return mv3310_set_edpd(phydev, ETHTOOL_PHY_EDPD_DFLT_TX_MSECS);
}
static int mv3310_get_features(struct phy_device *phydev)
{
int ret, val;
ret = genphy_c45_pma_read_abilities(phydev);
if (ret)
return ret;
if (mv3310_has_pma_ngbaset_quirk(phydev)) {
val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
MDIO_PMA_NG_EXTABLE);
if (val < 0)
return val;
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
phydev->supported,
val & MDIO_PMA_NG_EXTABLE_2_5GBT);
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
phydev->supported,
val & MDIO_PMA_NG_EXTABLE_5GBT);
}
return 0;
}
static int mv3310_config_mdix(struct phy_device *phydev)
{
u16 val;
int err;
switch (phydev->mdix_ctrl) {
case ETH_TP_MDI_AUTO:
val = MV_PCS_CSCR1_MDIX_AUTO;
break;
case ETH_TP_MDI_X:
val = MV_PCS_CSCR1_MDIX_MDIX;
break;
case ETH_TP_MDI:
val = MV_PCS_CSCR1_MDIX_MDI;
break;
default:
return -EINVAL;
}
err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
MV_PCS_CSCR1_MDIX_MASK, val);
if (err > 0)
err = mv3310_reset(phydev, MV_PCS_BASE_T);
return err;
}
static int mv3310_config_aneg(struct phy_device *phydev)
{
bool changed = false;
u16 reg;
int ret;
ret = mv3310_config_mdix(phydev);
if (ret < 0)
return ret;
if (phydev->autoneg == AUTONEG_DISABLE)
return genphy_c45_pma_setup_forced(phydev);
ret = genphy_c45_an_config_aneg(phydev);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
/* Clause 45 has no standardized support for 1000BaseT, therefore
* use vendor registers for this mode.
*/
reg = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MV_AN_CTRL1000,
ADVERTISE_1000FULL | ADVERTISE_1000HALF, reg);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
return genphy_c45_check_and_restart_aneg(phydev, changed);
}
static int mv3310_aneg_done(struct phy_device *phydev)
{
int val;
val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
if (val < 0)
return val;
if (val & MDIO_STAT1_LSTATUS)
return 1;
return genphy_c45_aneg_done(phydev);
}
static void mv3310_update_interface(struct phy_device *phydev)
{
struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
if (!phydev->link)
return;
/* In all of the "* with Rate Matching" modes the PHY interface is fixed
* at 10Gb. The PHY adapts the rate to actual wire speed with help of
* internal 16KB buffer.
*
* In USXGMII mode the PHY interface mode is also fixed.
*/
if (priv->rate_match ||
priv->const_interface == PHY_INTERFACE_MODE_USXGMII) {
phydev->interface = priv->const_interface;
return;
}
/* The PHY automatically switches its serdes interface (and active PHYXS
* instance) between Cisco SGMII, 2500BaseX, 5GBase-R and 10GBase-R /
* xaui / rxaui modes according to the speed.
* Florian suggests setting phydev->interface to communicate this to the
* MAC. Only do this if we are already in one of the above modes.
*/
switch (phydev->speed) {
case SPEED_10000:
phydev->interface = priv->const_interface;
break;
case SPEED_5000:
phydev->interface = PHY_INTERFACE_MODE_5GBASER;
break;
case SPEED_2500:
phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
break;
case SPEED_1000:
case SPEED_100:
case SPEED_10:
phydev->interface = PHY_INTERFACE_MODE_SGMII;
break;
default:
break;
}
}
/* 10GBASE-ER,LR,LRM,SR do not support autonegotiation. */
static int mv3310_read_status_10gbaser(struct phy_device *phydev)
{
phydev->link = 1;
phydev->speed = SPEED_10000;
phydev->duplex = DUPLEX_FULL;
phydev->port = PORT_FIBRE;
return 0;
}
static int mv3310_read_status_copper(struct phy_device *phydev)
{
int cssr1, speed, val;
val = genphy_c45_read_link(phydev);
if (val < 0)
return val;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
if (val < 0)
return val;
cssr1 = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSSR1);
if (cssr1 < 0)
return val;
/* If the link settings are not resolved, mark the link down */
if (!(cssr1 & MV_PCS_CSSR1_RESOLVED)) {
phydev->link = 0;
return 0;
}
/* Read the copper link settings */
speed = cssr1 & MV_PCS_CSSR1_SPD1_MASK;
if (speed == MV_PCS_CSSR1_SPD1_SPD2)
speed |= cssr1 & MV_PCS_CSSR1_SPD2_MASK;
switch (speed) {
case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_10000:
phydev->speed = SPEED_10000;
break;
case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_5000:
phydev->speed = SPEED_5000;
break;
case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_2500:
phydev->speed = SPEED_2500;
break;
case MV_PCS_CSSR1_SPD1_1000:
phydev->speed = SPEED_1000;
break;
case MV_PCS_CSSR1_SPD1_100:
phydev->speed = SPEED_100;
break;
case MV_PCS_CSSR1_SPD1_10:
phydev->speed = SPEED_10;
break;
}
phydev->duplex = cssr1 & MV_PCS_CSSR1_DUPLEX_FULL ?
DUPLEX_FULL : DUPLEX_HALF;
phydev->port = PORT_TP;
phydev->mdix = cssr1 & MV_PCS_CSSR1_MDIX ?
ETH_TP_MDI_X : ETH_TP_MDI;
if (val & MDIO_AN_STAT1_COMPLETE) {
val = genphy_c45_read_lpa(phydev);
if (val < 0)
return val;
/* Read the link partner's 1G advertisement */
val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_STAT1000);
if (val < 0)
return val;
mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, val);
/* Update the pause status */
phy_resolve_aneg_pause(phydev);
}
return 0;
}
static int mv3310_read_status(struct phy_device *phydev)
{
int err, val;
phydev->speed = SPEED_UNKNOWN;
phydev->duplex = DUPLEX_UNKNOWN;
linkmode_zero(phydev->lp_advertising);
phydev->link = 0;
phydev->pause = 0;
phydev->asym_pause = 0;
phydev->mdix = ETH_TP_MDI_INVALID;
val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
if (val < 0)
return val;
if (val & MDIO_STAT1_LSTATUS)
err = mv3310_read_status_10gbaser(phydev);
else
err = mv3310_read_status_copper(phydev);
if (err < 0)
return err;
if (phydev->link)
mv3310_update_interface(phydev);
return 0;
}
static int mv3310_get_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna, void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_EDPD:
return mv3310_get_edpd(phydev, data);
default:
return -EOPNOTSUPP;
}
}
static int mv3310_set_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna, const void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_EDPD:
return mv3310_set_edpd(phydev, *(u16 *)data);
default:
return -EOPNOTSUPP;
}
}
static void mv3310_init_supported_interfaces(unsigned long *mask)
{
__set_bit(PHY_INTERFACE_MODE_SGMII, mask);
__set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
__set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_XAUI, mask);
__set_bit(PHY_INTERFACE_MODE_RXAUI, mask);
__set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
}
static void mv3340_init_supported_interfaces(unsigned long *mask)
{
__set_bit(PHY_INTERFACE_MODE_SGMII, mask);
__set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
__set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_RXAUI, mask);
__set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
}
static void mv2110_init_supported_interfaces(unsigned long *mask)
{
__set_bit(PHY_INTERFACE_MODE_SGMII, mask);
__set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
__set_bit(PHY_INTERFACE_MODE_5GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
}
static void mv2111_init_supported_interfaces(unsigned long *mask)
{
__set_bit(PHY_INTERFACE_MODE_SGMII, mask);
__set_bit(PHY_INTERFACE_MODE_2500BASEX, mask);
__set_bit(PHY_INTERFACE_MODE_10GBASER, mask);
__set_bit(PHY_INTERFACE_MODE_USXGMII, mask);
}
static const struct mv3310_chip mv3310_type = {
.init_supported_interfaces = mv3310_init_supported_interfaces,
.get_mactype = mv3310_get_mactype,
.init_interface = mv3310_init_interface,
#ifdef CONFIG_HWMON
.hwmon_read_temp_reg = mv3310_hwmon_read_temp_reg,
#endif
};
static const struct mv3310_chip mv3340_type = {
.init_supported_interfaces = mv3340_init_supported_interfaces,
.get_mactype = mv3310_get_mactype,
.init_interface = mv3340_init_interface,
#ifdef CONFIG_HWMON
.hwmon_read_temp_reg = mv3310_hwmon_read_temp_reg,
#endif
};
static const struct mv3310_chip mv2110_type = {
.init_supported_interfaces = mv2110_init_supported_interfaces,
.get_mactype = mv2110_get_mactype,
.init_interface = mv2110_init_interface,
#ifdef CONFIG_HWMON
.hwmon_read_temp_reg = mv2110_hwmon_read_temp_reg,
#endif
};
static const struct mv3310_chip mv2111_type = {
.init_supported_interfaces = mv2111_init_supported_interfaces,
.get_mactype = mv2110_get_mactype,
.init_interface = mv2110_init_interface,
#ifdef CONFIG_HWMON
.hwmon_read_temp_reg = mv2110_hwmon_read_temp_reg,
#endif
};
static int mv3310_get_number_of_ports(struct phy_device *phydev)
{
int ret;
ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_PORT_INFO);
if (ret < 0)
return ret;
ret &= MV_PCS_PORT_INFO_NPORTS_MASK;
ret >>= MV_PCS_PORT_INFO_NPORTS_SHIFT;
return ret + 1;
}
static int mv3310_match_phy_device(struct phy_device *phydev)
{
return mv3310_get_number_of_ports(phydev) == 1;
}
static int mv3340_match_phy_device(struct phy_device *phydev)
{
return mv3310_get_number_of_ports(phydev) == 4;
}
static int mv211x_match_phy_device(struct phy_device *phydev, bool has_5g)
{
int val;