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usr
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src
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linux-headers-6.8.0-83
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include
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linux
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fsl
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enetc_mdio.h
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* Copyright 2019 NXP */ #ifndef _FSL_ENETC_MDIO_H_ #define _FSL_ENETC_MDIO_H_ #include <linux/phy.h> /* PCS registers */ #define ENETC_PCS_LINK_TIMER1 0x12 #define ENETC_PCS_LINK_TIMER1_VAL 0x06a0 #define ENETC_PCS_LINK_TIMER2 0x13 #define ENETC_PCS_LINK_TIMER2_VAL 0x0003 #define ENETC_PCS_IF_MODE 0x14 #define ENETC_PCS_IF_MODE_SGMII_EN BIT(0) #define ENETC_PCS_IF_MODE_USE_SGMII_AN BIT(1) #define ENETC_PCS_IF_MODE_SGMII_SPEED(x) (((x) << 2) & GENMASK(3, 2)) #define ENETC_PCS_IF_MODE_DUPLEX_HALF BIT(3) /* Not a mistake, the SerDes PLL needs to be set at 3.125 GHz by Reset * Configuration Word (RCW, outside Linux control) for 2.5G SGMII mode. The PCS * still thinks it's at gigabit. */ enum enetc_pcs_speed { ENETC_PCS_SPEED_10 = 0, ENETC_PCS_SPEED_100 = 1, ENETC_PCS_SPEED_1000 = 2, ENETC_PCS_SPEED_2500 = 2, }; struct enetc_hw; struct enetc_mdio_priv { struct enetc_hw *hw; int mdio_base; }; #if IS_REACHABLE(CONFIG_FSL_ENETC_MDIO) int enetc_mdio_read_c22(struct mii_bus *bus, int phy_id, int regnum); int enetc_mdio_write_c22(struct mii_bus *bus, int phy_id, int regnum, u16 value); int enetc_mdio_read_c45(struct mii_bus *bus, int phy_id, int devad, int regnum); int enetc_mdio_write_c45(struct mii_bus *bus, int phy_id, int devad, int regnum, u16 value); struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs); #else static inline int enetc_mdio_read_c22(struct mii_bus *bus, int phy_id, int regnum) { return -EINVAL; } static inline int enetc_mdio_write_c22(struct mii_bus *bus, int phy_id, int regnum, u16 value) { return -EINVAL; } static inline int enetc_mdio_read_c45(struct mii_bus *bus, int phy_id, int devad, int regnum) { return -EINVAL; } static inline int enetc_mdio_write_c45(struct mii_bus *bus, int phy_id, int devad, int regnum, u16 value) { return -EINVAL; } static inline struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs) { return ERR_PTR(-EINVAL); } #endif #endif
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