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Miller" , Russell King , kuba@kernel.org, =?utf-8?q?Marek?= =?utf-8?q?_Beh=C3=BAn?= Subject: [PATCH net-next v2 5/5] net: phy: marvell: add support for Amethyst internal PHY Date: Tue, 20 Apr 2021 09:54:03 +0200 Message-Id: <20210420075403.5845-6-kabel@kernel.org> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210420075403.5845-1-kabel@kernel.org> References: <20210420075403.5845-1-kabel@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add support for Amethyst internal PHY. The only difference from Peridot is HWMON. Signed-off-by: Marek Behún --- drivers/net/phy/marvell.c | 117 +++++++++++++++++++++++++++++++++++- include/linux/marvell_phy.h | 1 + 2 files changed, 115 insertions(+), 3 deletions(-) diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index e505060d0743..1cce86b280af 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -118,10 +118,21 @@ #define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_ONESHOT (0x2 << 14) #define MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE (0x3 << 14) #define MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK (0x3 << 14) +#define MII_88E6393_MISC_TEST_SAMPLES_2048 (0x0 << 11) +#define MII_88E6393_MISC_TEST_SAMPLES_4096 (0x1 << 11) +#define MII_88E6393_MISC_TEST_SAMPLES_8192 (0x2 << 11) +#define MII_88E6393_MISC_TEST_SAMPLES_16384 (0x3 << 11) +#define MII_88E6393_MISC_TEST_SAMPLES_MASK (0x3 << 11) +#define MII_88E6393_MISC_TEST_RATE_2_3MS (0x5 << 8) +#define MII_88E6393_MISC_TEST_RATE_6_4MS (0x6 << 8) +#define MII_88E6393_MISC_TEST_RATE_11_9MS (0x7 << 8) +#define MII_88E6393_MISC_TEST_RATE_MASK (0x7 << 8) #define MII_88E6390_TEMP_SENSOR 0x1c -#define MII_88E6390_TEMP_SENSOR_MASK 0xff -#define MII_88E6390_TEMP_SENSOR_SAMPLES 10 +#define MII_88E6393_TEMP_SENSOR_THRESHOLD_MASK 0xff00 +#define MII_88E6393_TEMP_SENSOR_THRESHOLD_SHIFT 8 +#define MII_88E6390_TEMP_SENSOR_MASK 0xff +#define MII_88E6390_TEMP_SENSOR_SAMPLES 10 #define MII_88E1318S_PHY_MSCR1_REG 16 #define MII_88E1318S_PHY_MSCR1_PAD_ODD BIT(6) @@ -2217,6 +2228,7 @@ static int marvell_vct7_cable_test_get_status(struct phy_device *phydev, #ifdef CONFIG_HWMON struct marvell_hwmon_ops { + int (*config)(struct phy_device *phydev); int (*get_temp)(struct phy_device *phydev, long *temp); int (*get_temp_critical)(struct phy_device *phydev, long *temp); int (*set_temp_critical)(struct phy_device *phydev, long temp); @@ -2391,6 +2403,65 @@ static int m88e6390_get_temp(struct phy_device *phydev, long *temp) return ret; } +static int m88e6393_get_temp(struct phy_device *phydev, long *temp) +{ + int err; + + err = m88e1510_get_temp(phydev, temp); + + /* 88E1510 measures T + 25, while the PHY on 88E6393X switch + * T + 75, so we have to subtract another 50 + */ + *temp -= 50000; + + return err; +} + +static int m88e6393_get_temp_critical(struct phy_device *phydev, long *temp) +{ + int ret; + + *temp = 0; + + ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE, + MII_88E6390_TEMP_SENSOR); + if (ret < 0) + return ret; + + *temp = (((ret & MII_88E6393_TEMP_SENSOR_THRESHOLD_MASK) >> + MII_88E6393_TEMP_SENSOR_THRESHOLD_SHIFT) - 75) * 1000; + + return 0; +} + +static int m88e6393_set_temp_critical(struct phy_device *phydev, long temp) +{ + temp = (temp / 1000) + 75; + + return phy_modify_paged(phydev, MII_MARVELL_MISC_TEST_PAGE, + MII_88E6390_TEMP_SENSOR, + MII_88E6393_TEMP_SENSOR_THRESHOLD_MASK, + temp << MII_88E6393_TEMP_SENSOR_THRESHOLD_SHIFT); +} + +static int m88e6393_hwmon_config(struct phy_device *phydev) +{ + int err; + + err = m88e6393_set_temp_critical(phydev, 100000); + if (err) + return err; + + return phy_modify_paged(phydev, MII_MARVELL_MISC_TEST_PAGE, + MII_88E6390_MISC_TEST, + MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK | + MII_88E6393_MISC_TEST_SAMPLES_MASK | + MII_88E6393_MISC_TEST_RATE_MASK, + MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE | + MII_88E6393_MISC_TEST_SAMPLES_2048 | + MII_88E6393_MISC_TEST_RATE_2_3MS); +} + static int marvell_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *temp) { @@ -2535,8 +2606,13 @@ static int marvell_hwmon_probe(struct phy_device *phydev) priv->hwmon_dev = devm_hwmon_device_register_with_info( dev, priv->hwmon_name, phydev, &marvell_hwmon_chip_info, NULL); + if (IS_ERR(priv->hwmon_dev)) + return PTR_ERR(priv->hwmon_dev); - return PTR_ERR_OR_ZERO(priv->hwmon_dev); + if (ops->config) + err = ops->config(phydev); + + return err; } static const struct marvell_hwmon_ops m88e1121_hwmon_ops = { @@ -2554,6 +2630,14 @@ static const struct marvell_hwmon_ops m88e6390_hwmon_ops = { .get_temp = m88e6390_get_temp, }; +static const struct marvell_hwmon_ops m88e6393_hwmon_ops = { + .config = m88e6393_hwmon_config, + .get_temp = m88e6393_get_temp, + .get_temp_critical = m88e6393_get_temp_critical, + .set_temp_critical = m88e6393_set_temp_critical, + .get_temp_alarm = m88e1510_get_temp_alarm, +}; + #define DEF_MARVELL_HWMON_OPS(s) (&(s)) #else @@ -2948,6 +3032,32 @@ static struct phy_driver marvell_drivers[] = { .cable_test_tdr_start = marvell_vct5_cable_test_tdr_start, .cable_test_get_status = marvell_vct7_cable_test_get_status, }, + { + .phy_id = MARVELL_PHY_ID_88E6393_FAMILY, + .phy_id_mask = MARVELL_PHY_ID_MASK, + .name = "Marvell 88E6393 Family", + .driver_data = DEF_MARVELL_HWMON_OPS(m88e6393_hwmon_ops), + /* PHY_GBIT_FEATURES */ + .flags = PHY_POLL_CABLE_TEST, + .probe = marvell_probe, + .config_init = marvell_config_init, + .config_aneg = m88e1510_config_aneg, + .read_status = marvell_read_status, + .config_intr = marvell_config_intr, + .handle_interrupt = marvell_handle_interrupt, + .resume = genphy_resume, + .suspend = genphy_suspend, + .read_page = marvell_read_page, + .write_page = marvell_write_page, + .get_sset_count = marvell_get_sset_count, + .get_strings = marvell_get_strings, + .get_stats = marvell_get_stats, + .get_tunable = m88e1540_get_tunable, + .set_tunable = m88e1540_set_tunable, + .cable_test_start = marvell_vct7_cable_test_start, + .cable_test_tdr_start = marvell_vct5_cable_test_tdr_start, + .cable_test_get_status = marvell_vct7_cable_test_get_status, + }, { .phy_id = MARVELL_PHY_ID_88E1340S, .phy_id_mask = MARVELL_PHY_ID_MASK, @@ -3014,6 +3124,7 @@ static struct mdio_device_id __maybe_unused marvell_tbl[] = { { MARVELL_PHY_ID_88E3016, 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 }, { MARVELL_PHY_ID_88E1340S, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1548P, MARVELL_PHY_ID_MASK }, { } diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h index f61d82c53f30..acee44b9db26 100644 --- a/include/linux/marvell_phy.h +++ b/include/linux/marvell_phy.h @@ -39,6 +39,7 @@ */ #define MARVELL_PHY_ID_88E6341_FAMILY 0x01410f41 #define MARVELL_PHY_ID_88E6390_FAMILY 0x01410f90 +#define MARVELL_PHY_ID_88E6393_FAMILY 0x002b0b9b #define MARVELL_PHY_FAMILY_ID(id) ((id) >> 4)