// SPDX-License-Identifier: GPL-2.0+ /* * Driver for Vitesse PHYs * * Author: Kriston Carson */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/mii.h> #include <linux/ethtool.h> #include <linux/phy.h> #include <linux/bitfield.h> /* Vitesse Extended Page Magic Register(s) */ #define MII_VSC73XX_EXT_PAGE_1E … #define MII_VSC82X4_EXT_PAGE_16E … #define MII_VSC82X4_EXT_PAGE_17E … #define MII_VSC82X4_EXT_PAGE_18E … /* Vitesse Extended Control Register 1 */ #define MII_VSC8244_EXT_CON1 … #define MII_VSC8244_EXTCON1_INIT … #define MII_VSC8244_EXTCON1_TX_SKEW_MASK … #define MII_VSC8244_EXTCON1_RX_SKEW_MASK … #define MII_VSC8244_EXTCON1_TX_SKEW … #define MII_VSC8244_EXTCON1_RX_SKEW … /* Vitesse Interrupt Mask Register */ #define MII_VSC8244_IMASK … #define MII_VSC8244_IMASK_IEN … #define MII_VSC8244_IMASK_SPEED … #define MII_VSC8244_IMASK_LINK … #define MII_VSC8244_IMASK_DUPLEX … #define MII_VSC8244_IMASK_MASK … #define MII_VSC8221_IMASK_MASK … /* Vitesse Interrupt Status Register */ #define MII_VSC8244_ISTAT … #define MII_VSC8244_ISTAT_STATUS … #define MII_VSC8244_ISTAT_SPEED … #define MII_VSC8244_ISTAT_LINK … #define MII_VSC8244_ISTAT_DUPLEX … #define MII_VSC8244_ISTAT_MASK … #define MII_VSC8221_ISTAT_MASK … /* Vitesse Auxiliary Control/Status Register */ #define MII_VSC8244_AUX_CONSTAT … #define MII_VSC8244_AUXCONSTAT_INIT … #define MII_VSC8244_AUXCONSTAT_DUPLEX … #define MII_VSC8244_AUXCONSTAT_SPEED … #define MII_VSC8244_AUXCONSTAT_GBIT … #define MII_VSC8244_AUXCONSTAT_100 … #define MII_VSC8221_AUXCONSTAT_INIT … #define MII_VSC8221_AUXCONSTAT_RESERVED … /* Vitesse Extended Page Access Register */ #define MII_VSC82X4_EXT_PAGE_ACCESS … /* Vitesse VSC73XX Extended Control Register */ #define MII_VSC73XX_PHY_CTRL_EXT3 … #define MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_EN … #define MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_CNT … #define MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_STA … #define MII_VSC73XX_DOWNSHIFT_MAX … #define MII_VSC73XX_DOWNSHIFT_INVAL … /* VSC73XX PHY_BYPASS_CTRL register*/ #define MII_VSC73XX_PHY_BYPASS_CTRL … #define MII_VSC73XX_PBC_TX_DIS … #define MII_VSC73XX_PBC_FOR_SPD_AUTO_MDIX_DIS … #define MII_VSC73XX_PBC_PAIR_SWAP_DIS … #define MII_VSC73XX_PBC_POL_INV_DIS … #define MII_VSC73XX_PBC_PARALLEL_DET_DIS … #define MII_VSC73XX_PBC_AUTO_NP_EXCHANGE_DIS … /* VSC73XX PHY_AUX_CTRL_STAT register */ #define MII_VSC73XX_PHY_AUX_CTRL_STAT … #define MII_VSC73XX_PACS_NO_MDI_X_IND … /* Vitesse VSC8601 Extended PHY Control Register 1 */ #define MII_VSC8601_EPHY_CTL … #define MII_VSC8601_EPHY_CTL_RGMII_SKEW … #define PHY_ID_VSC8234 … #define PHY_ID_VSC8244 … #define PHY_ID_VSC8572 … #define PHY_ID_VSC8601 … #define PHY_ID_VSC7385 … #define PHY_ID_VSC7388 … #define PHY_ID_VSC7395 … #define PHY_ID_VSC7398 … #define PHY_ID_VSC8662 … #define PHY_ID_VSC8221 … #define PHY_ID_VSC8211 … MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; static int vsc824x_add_skew(struct phy_device *phydev) { … } static int vsc824x_config_init(struct phy_device *phydev) { … } #define VSC73XX_EXT_PAGE_ACCESS … static int vsc73xx_read_page(struct phy_device *phydev) { … } static int vsc73xx_write_page(struct phy_device *phydev, int page) { … } static int vsc73xx_get_downshift(struct phy_device *phydev, u8 *data) { … } static int vsc73xx_set_downshift(struct phy_device *phydev, u8 cnt) { … } static int vsc73xx_get_tunable(struct phy_device *phydev, struct ethtool_tunable *tuna, void *data) { … } static int vsc73xx_set_tunable(struct phy_device *phydev, struct ethtool_tunable *tuna, const void *data) { … } static void vsc73xx_config_init(struct phy_device *phydev) { … } static int vsc738x_config_init(struct phy_device *phydev) { … } static int vsc739x_config_init(struct phy_device *phydev) { … } static int vsc73xx_mdix_set(struct phy_device *phydev, u8 mdix) { … } static int vsc73xx_config_aneg(struct phy_device *phydev) { … } static int vsc73xx_mdix_get(struct phy_device *phydev, u8 *mdix) { … } static int vsc73xx_read_status(struct phy_device *phydev) { … } /* This adds a skew for both TX and RX clocks, so the skew should only be * applied to "rgmii-id" interfaces. It may not work as expected * on "rgmii-txid", "rgmii-rxid" or "rgmii" interfaces. */ static int vsc8601_add_skew(struct phy_device *phydev) { … } static int vsc8601_config_init(struct phy_device *phydev) { … } static int vsc82xx_config_intr(struct phy_device *phydev) { … } static irqreturn_t vsc82xx_handle_interrupt(struct phy_device *phydev) { … } static int vsc8221_config_init(struct phy_device *phydev) { … } /* vsc82x4_config_autocross_enable - Enable auto MDI/MDI-X for forced links * @phydev: target phy_device struct * * Enable auto MDI/MDI-X when in 10/100 forced link speeds by writing * special values in the VSC8234/VSC8244 extended reserved registers */ static int vsc82x4_config_autocross_enable(struct phy_device *phydev) { … } /* vsc82x4_config_aneg - restart auto-negotiation or write BMCR * @phydev: target phy_device struct * * Description: If auto-negotiation is enabled, we configure the * advertising, and then restart auto-negotiation. If it is not * enabled, then we write the BMCR and also start the auto * MDI/MDI-X feature */ static int vsc82x4_config_aneg(struct phy_device *phydev) { … } /* Vitesse 82xx */ static struct phy_driver vsc82xx_driver[] = …; module_phy_driver(vsc82xx_driver); static struct mdio_device_id __maybe_unused vitesse_tbl[] = …; MODULE_DEVICE_TABLE(mdio, vitesse_tbl);
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