diff options
Diffstat (limited to 'drivers/net/phy/marvell.c')
| -rw-r--r-- | drivers/net/phy/marvell.c | 397 |
1 files changed, 395 insertions, 2 deletions
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 42ed013385..b89fbffa6a 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -279,10 +279,29 @@ #define MII_VCT7_CTRL_METERS BIT(10) #define MII_VCT7_CTRL_CENTIMETERS 0 +#define MII_VCT_TXPINS 0x1A +#define MII_VCT_RXPINS 0x1B +#define MII_VCT_SR 0x1C +#define MII_VCT_TXPINS_ENVCT BIT(15) +#define MII_VCT_TXRXPINS_VCTTST GENMASK(14, 13) +#define MII_VCT_TXRXPINS_VCTTST_SHIFT 13 +#define MII_VCT_TXRXPINS_VCTTST_OK 0 +#define MII_VCT_TXRXPINS_VCTTST_SHORT 1 +#define MII_VCT_TXRXPINS_VCTTST_OPEN 2 +#define MII_VCT_TXRXPINS_VCTTST_FAIL 3 +#define MII_VCT_TXRXPINS_AMPRFLN GENMASK(12, 8) +#define MII_VCT_TXRXPINS_AMPRFLN_SHIFT 8 +#define MII_VCT_TXRXPINS_DISTRFLN GENMASK(7, 0) +#define MII_VCT_TXRXPINS_DISTRFLN_MAX 0xff + +#define M88E3082_PAIR_A BIT(0) +#define M88E3082_PAIR_B BIT(1) + #define LPA_PAUSE_FIBER 0x180 #define LPA_PAUSE_ASYM_FIBER 0x100 #define NB_FIBER_STATS 1 +#define NB_STAT_MAX 3 MODULE_DESCRIPTION("Marvell PHY driver"); MODULE_AUTHOR("Andy Fleming"); @@ -295,14 +314,37 @@ struct marvell_hw_stat { u8 bits; }; -static struct marvell_hw_stat marvell_hw_stats[] = { +static const struct marvell_hw_stat marvell_hw_stats[] = { { "phy_receive_errors_copper", 0, 21, 16}, { "phy_idle_errors", 0, 10, 8 }, { "phy_receive_errors_fiber", 1, 21, 16}, }; +static_assert(ARRAY_SIZE(marvell_hw_stats) <= NB_STAT_MAX); + +/* "simple" stat list + corresponding marvell_get_*_simple functions are used + * on PHYs without a page register + */ +struct marvell_hw_stat_simple { + const char *string; + u8 reg; + u8 bits; +}; + +static const struct marvell_hw_stat_simple marvell_hw_stats_simple[] = { + { "phy_receive_errors", 21, 16}, +}; + +static_assert(ARRAY_SIZE(marvell_hw_stats_simple) <= NB_STAT_MAX); + +enum { + M88E3082_VCT_OFF, + M88E3082_VCT_PHASE1, + M88E3082_VCT_PHASE2, +}; + struct marvell_priv { - u64 stats[ARRAY_SIZE(marvell_hw_stats)]; + u64 stats[NB_STAT_MAX]; char *hwmon_name; struct device *hwmon_dev; bool cable_test_tdr; @@ -310,6 +352,7 @@ struct marvell_priv { u32 last; u32 step; s8 pair; + u8 vct_phase; }; static int marvell_read_page(struct phy_device *phydev) @@ -1953,6 +1996,11 @@ static int marvell_get_sset_count(struct phy_device *phydev) return ARRAY_SIZE(marvell_hw_stats) - NB_FIBER_STATS; } +static int marvell_get_sset_count_simple(struct phy_device *phydev) +{ + return ARRAY_SIZE(marvell_hw_stats_simple); +} + static void marvell_get_strings(struct phy_device *phydev, u8 *data) { int count = marvell_get_sset_count(phydev); @@ -1964,6 +2012,17 @@ static void marvell_get_strings(struct phy_device *phydev, u8 *data) } } +static void marvell_get_strings_simple(struct phy_device *phydev, u8 *data) +{ + int count = marvell_get_sset_count_simple(phydev); + int i; + + for (i = 0; i < count; i++) { + strscpy(data + i * ETH_GSTRING_LEN, + marvell_hw_stats_simple[i].string, ETH_GSTRING_LEN); + } +} + static u64 marvell_get_stat(struct phy_device *phydev, int i) { struct marvell_hw_stat stat = marvell_hw_stats[i]; @@ -1983,6 +2042,25 @@ static u64 marvell_get_stat(struct phy_device *phydev, int i) return ret; } +static u64 marvell_get_stat_simple(struct phy_device *phydev, int i) +{ + struct marvell_hw_stat_simple stat = marvell_hw_stats_simple[i]; + struct marvell_priv *priv = phydev->priv; + int val; + u64 ret; + + val = phy_read(phydev, stat.reg); + if (val < 0) { + ret = U64_MAX; + } else { + val = val & ((1 << stat.bits) - 1); + priv->stats[i] += val; + ret = priv->stats[i]; + } + + return ret; +} + static void marvell_get_stats(struct phy_device *phydev, struct ethtool_stats *stats, u64 *data) { @@ -1993,6 +2071,16 @@ static void marvell_get_stats(struct phy_device *phydev, data[i] = marvell_get_stat(phydev, i); } +static void marvell_get_stats_simple(struct phy_device *phydev, + struct ethtool_stats *stats, u64 *data) +{ + int count = marvell_get_sset_count_simple(phydev); + int i; + + for (i = 0; i < count; i++) + data[i] = marvell_get_stat_simple(phydev, i); +} + static int m88e1510_loopback(struct phy_device *phydev, bool enable) { int err; @@ -2417,6 +2505,274 @@ static int marvell_vct7_cable_test_get_status(struct phy_device *phydev, return 0; } +static int m88e3082_vct_cable_test_start(struct phy_device *phydev) +{ + struct marvell_priv *priv = phydev->priv; + int ret; + + /* It needs some magic workarounds described in VCT manual for this PHY. + */ + ret = phy_write(phydev, 29, 0x0003); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x6440); + if (ret < 0) + return ret; + + if (priv->vct_phase == M88E3082_VCT_PHASE1) { + ret = phy_write(phydev, 29, 0x000a); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x0002); + if (ret < 0) + return ret; + } + + ret = phy_write(phydev, MII_BMCR, + BMCR_RESET | BMCR_SPEED100 | BMCR_FULLDPLX); + if (ret < 0) + return ret; + + ret = phy_write(phydev, MII_VCT_TXPINS, MII_VCT_TXPINS_ENVCT); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 29, 0x0003); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x0); + if (ret < 0) + return ret; + + if (priv->vct_phase == M88E3082_VCT_OFF) { + priv->vct_phase = M88E3082_VCT_PHASE1; + priv->pair = 0; + + return 0; + } + + ret = phy_write(phydev, 29, 0x000a); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x0); + if (ret < 0) + return ret; + + priv->vct_phase = M88E3082_VCT_PHASE2; + + return 0; +} + +static int m88e3082_vct_cable_test_report_trans(int result, u8 distance) +{ + switch (result) { + case MII_VCT_TXRXPINS_VCTTST_OK: + if (distance == MII_VCT_TXRXPINS_DISTRFLN_MAX) + return ETHTOOL_A_CABLE_RESULT_CODE_OK; + return ETHTOOL_A_CABLE_RESULT_CODE_IMPEDANCE_MISMATCH; + case MII_VCT_TXRXPINS_VCTTST_SHORT: + return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT; + case MII_VCT_TXRXPINS_VCTTST_OPEN: + return ETHTOOL_A_CABLE_RESULT_CODE_OPEN; + default: + return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC; + } +} + +static u32 m88e3082_vct_distrfln_2_cm(u8 distrfln) +{ + if (distrfln < 24) + return 0; + + /* Original function for meters: y = 0.7861x - 18.862 */ + return (7861 * distrfln - 188620) / 100; +} + +static int m88e3082_vct_cable_test_get_status(struct phy_device *phydev, + bool *finished) +{ + u8 tx_vcttst_res, rx_vcttst_res, tx_distrfln, rx_distrfln; + struct marvell_priv *priv = phydev->priv; + int ret, tx_result, rx_result; + bool done_phase = true; + + *finished = false; + + ret = phy_read(phydev, MII_VCT_TXPINS); + if (ret < 0) + return ret; + else if (ret & MII_VCT_TXPINS_ENVCT) + return 0; + + tx_distrfln = ret & MII_VCT_TXRXPINS_DISTRFLN; + tx_vcttst_res = (ret & MII_VCT_TXRXPINS_VCTTST) >> + MII_VCT_TXRXPINS_VCTTST_SHIFT; + + ret = phy_read(phydev, MII_VCT_RXPINS); + if (ret < 0) + return ret; + + rx_distrfln = ret & MII_VCT_TXRXPINS_DISTRFLN; + rx_vcttst_res = (ret & MII_VCT_TXRXPINS_VCTTST) >> + MII_VCT_TXRXPINS_VCTTST_SHIFT; + + *finished = true; + + switch (priv->vct_phase) { + case M88E3082_VCT_PHASE1: + tx_result = m88e3082_vct_cable_test_report_trans(tx_vcttst_res, + tx_distrfln); + rx_result = m88e3082_vct_cable_test_report_trans(rx_vcttst_res, + rx_distrfln); + + ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A, + tx_result); + ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_B, + rx_result); + + if (tx_vcttst_res == MII_VCT_TXRXPINS_VCTTST_OPEN) { + done_phase = false; + priv->pair |= M88E3082_PAIR_A; + } else if (tx_distrfln < MII_VCT_TXRXPINS_DISTRFLN_MAX) { + u8 pair = ETHTOOL_A_CABLE_PAIR_A; + u32 cm = m88e3082_vct_distrfln_2_cm(tx_distrfln); + + ethnl_cable_test_fault_length(phydev, pair, cm); + } + + if (rx_vcttst_res == MII_VCT_TXRXPINS_VCTTST_OPEN) { + done_phase = false; + priv->pair |= M88E3082_PAIR_B; + } else if (rx_distrfln < MII_VCT_TXRXPINS_DISTRFLN_MAX) { + u8 pair = ETHTOOL_A_CABLE_PAIR_B; + u32 cm = m88e3082_vct_distrfln_2_cm(rx_distrfln); + + ethnl_cable_test_fault_length(phydev, pair, cm); + } + + break; + case M88E3082_VCT_PHASE2: + if (priv->pair & M88E3082_PAIR_A && + tx_vcttst_res == MII_VCT_TXRXPINS_VCTTST_OPEN && + tx_distrfln < MII_VCT_TXRXPINS_DISTRFLN_MAX) { + u8 pair = ETHTOOL_A_CABLE_PAIR_A; + u32 cm = m88e3082_vct_distrfln_2_cm(tx_distrfln); + + ethnl_cable_test_fault_length(phydev, pair, cm); + } + if (priv->pair & M88E3082_PAIR_B && + rx_vcttst_res == MII_VCT_TXRXPINS_VCTTST_OPEN && + rx_distrfln < MII_VCT_TXRXPINS_DISTRFLN_MAX) { + u8 pair = ETHTOOL_A_CABLE_PAIR_B; + u32 cm = m88e3082_vct_distrfln_2_cm(rx_distrfln); + + ethnl_cable_test_fault_length(phydev, pair, cm); + } + + break; + default: + return -EINVAL; + } + + if (!done_phase) { + *finished = false; + return m88e3082_vct_cable_test_start(phydev); + } + if (*finished) + priv->vct_phase = M88E3082_VCT_OFF; + return 0; +} + +static int m88e1111_vct_cable_test_start(struct phy_device *phydev) +{ + int ret; + + ret = marvell_cable_test_start_common(phydev); + if (ret) + return ret; + + /* It needs some magic workarounds described in VCT manual for this PHY. + */ + ret = phy_write(phydev, 29, 0x0018); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x00c2); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x00ca); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x00c2); + if (ret < 0) + return ret; + + ret = phy_write_paged(phydev, MII_MARVELL_COPPER_PAGE, MII_VCT_SR, + MII_VCT_TXPINS_ENVCT); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 29, 0x0018); + if (ret < 0) + return ret; + + ret = phy_write(phydev, 30, 0x0042); + if (ret < 0) + return ret; + + return 0; +} + +static u32 m88e1111_vct_distrfln_2_cm(u8 distrfln) +{ + if (distrfln < 36) + return 0; + + /* Original function for meters: y = 0.8018x - 28.751 */ + return (8018 * distrfln - 287510) / 100; +} + +static int m88e1111_vct_cable_test_get_status(struct phy_device *phydev, + bool *finished) +{ + u8 vcttst_res, distrfln; + int ret, result; + + *finished = false; + + /* Each pair use one page: A-0, B-1, C-2, D-3 */ + for (u8 i = 0; i < 4; i++) { + ret = phy_read_paged(phydev, i, MII_VCT_SR); + if (ret < 0) + return ret; + else if (i == 0 && ret & MII_VCT_TXPINS_ENVCT) + return 0; + + distrfln = ret & MII_VCT_TXRXPINS_DISTRFLN; + vcttst_res = (ret & MII_VCT_TXRXPINS_VCTTST) >> + MII_VCT_TXRXPINS_VCTTST_SHIFT; + + result = m88e3082_vct_cable_test_report_trans(vcttst_res, + distrfln); + ethnl_cable_test_result(phydev, i, result); + + if (distrfln < MII_VCT_TXRXPINS_DISTRFLN_MAX) { + u32 cm = m88e1111_vct_distrfln_2_cm(distrfln); + + ethnl_cable_test_fault_length(phydev, i, cm); + } + } + + *finished = true; + return 0; +} + #ifdef CONFIG_HWMON struct marvell_hwmon_ops { int (*config)(struct phy_device *phydev); @@ -3290,6 +3646,20 @@ static struct phy_driver marvell_drivers[] = { .get_stats = marvell_get_stats, }, { + .phy_id = MARVELL_PHY_ID_88E3082, + .phy_id_mask = MARVELL_PHY_ID_MASK, + .name = "Marvell 88E308X/88E609X Family", + /* PHY_BASIC_FEATURES */ + .probe = marvell_probe, + .config_init = marvell_config_init, + .aneg_done = marvell_aneg_done, + .read_status = marvell_read_status, + .resume = genphy_resume, + .suspend = genphy_suspend, + .cable_test_start = m88e3082_vct_cable_test_start, + .cable_test_get_status = m88e3082_vct_cable_test_get_status, + }, + { .phy_id = MARVELL_PHY_ID_88E1112, .phy_id_mask = MARVELL_PHY_ID_MASK, .name = "Marvell 88E1112", @@ -3314,6 +3684,7 @@ static struct phy_driver marvell_drivers[] = { .phy_id_mask = MARVELL_PHY_ID_MASK, .name = "Marvell 88E1111", /* PHY_GBIT_FEATURES */ + .flags = PHY_POLL_CABLE_TEST, .probe = marvell_probe, .config_init = m88e1111gbe_config_init, .config_aneg = m88e1111_config_aneg, @@ -3329,6 +3700,8 @@ static struct phy_driver marvell_drivers[] = { .get_stats = marvell_get_stats, .get_tunable = m88e1111_get_tunable, .set_tunable = m88e1111_set_tunable, + .cable_test_start = m88e1111_vct_cable_test_start, + .cable_test_get_status = m88e1111_vct_cable_test_get_status, }, { .phy_id = MARVELL_PHY_ID_88E1111_FINISAR, @@ -3422,6 +3795,7 @@ static struct phy_driver marvell_drivers[] = { .phy_id_mask = MARVELL_PHY_ID_MASK, .name = "Marvell 88E1145", /* PHY_GBIT_FEATURES */ + .flags = PHY_POLL_CABLE_TEST, .probe = marvell_probe, .config_init = m88e1145_config_init, .config_aneg = m88e1101_config_aneg, @@ -3436,6 +3810,8 @@ static struct phy_driver marvell_drivers[] = { .get_stats = marvell_get_stats, .get_tunable = m88e1111_get_tunable, .set_tunable = m88e1111_set_tunable, + .cable_test_start = m88e1111_vct_cable_test_start, + .cable_test_get_status = m88e1111_vct_cable_test_get_status, }, { .phy_id = MARVELL_PHY_ID_88E1149R, @@ -3610,6 +3986,21 @@ static struct phy_driver marvell_drivers[] = { .get_stats = marvell_get_stats, }, { + .phy_id = MARVELL_PHY_ID_88E6250_FAMILY, + .phy_id_mask = MARVELL_PHY_ID_MASK, + .name = "Marvell 88E6250 Family", + /* PHY_BASIC_FEATURES */ + .probe = marvell_probe, + .aneg_done = marvell_aneg_done, + .config_intr = marvell_config_intr, + .handle_interrupt = marvell_handle_interrupt, + .resume = genphy_resume, + .suspend = genphy_suspend, + .get_sset_count = marvell_get_sset_count_simple, + .get_strings = marvell_get_strings_simple, + .get_stats = marvell_get_stats_simple, + }, + { .phy_id = MARVELL_PHY_ID_88E6341_FAMILY, .phy_id_mask = MARVELL_PHY_ID_MASK, .name = "Marvell 88E6341 Family", @@ -3742,6 +4133,7 @@ module_phy_driver(marvell_drivers); static struct mdio_device_id __maybe_unused marvell_tbl[] = { { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK }, + { MARVELL_PHY_ID_88E3082, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1111_FINISAR, MARVELL_PHY_ID_MASK }, @@ -3756,6 +4148,7 @@ static struct mdio_device_id __maybe_unused marvell_tbl[] = { { MARVELL_PHY_ID_88E1540, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1545, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK }, + { MARVELL_PHY_ID_88E6250_FAMILY, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E6341_FAMILY, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E6390_FAMILY, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E6393_FAMILY, MARVELL_PHY_ID_MASK }, |