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android_kernel_samsung_sm8650_ksu
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android_kernel_...
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drivers
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net
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dsa
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mv88e6xxx
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smi.h

smi.h 1.6 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
    2. 

  2. /*
    3. 

  3.  * Marvell 88E6xxx System Management Interface (SMI) support
    4. 

  4.  *
    5. 

  5.  * Copyright (c) 2008 Marvell Semiconductor
    6. 

  6.  *
    7. 

  7.  * Copyright (c) 2019 Vivien Didelot <[email protected]>
    8. 

  8.  */
    9. 

  9. 

  10. #ifndef _MV88E6XXX_SMI_H
    11. 

  11. #define _MV88E6XXX_SMI_H
    12. 

  12. 

  13. #include "chip.h"
    14. 

  14. 

  15. /* Offset 0x00: SMI Command Register */
    16. 

  16. #define MV88E6XXX_SMI_CMD			0x00
    17. 

  17. #define MV88E6XXX_SMI_CMD_BUSY			0x8000
    18. 

  18. #define MV88E6XXX_SMI_CMD_MODE_MASK		0x1000
    19. 

  19. #define MV88E6XXX_SMI_CMD_MODE_45		0x0000
    20. 

  20. #define MV88E6XXX_SMI_CMD_MODE_22		0x1000
    21. 

  21. #define MV88E6XXX_SMI_CMD_OP_MASK		0x0c00
    22. 

  22. #define MV88E6XXX_SMI_CMD_OP_22_WRITE		0x0400
    23. 

  23. #define MV88E6XXX_SMI_CMD_OP_22_READ		0x0800
    24. 

  24. #define MV88E6XXX_SMI_CMD_OP_45_WRITE_ADDR	0x0000
    25. 

  25. #define MV88E6XXX_SMI_CMD_OP_45_WRITE_DATA	0x0400
    26. 

  26. #define MV88E6XXX_SMI_CMD_OP_45_READ_DATA	0x0800
    27. 

  27. #define MV88E6XXX_SMI_CMD_OP_45_READ_DATA_INC	0x0c00
    28. 

  28. #define MV88E6XXX_SMI_CMD_DEV_ADDR_MASK		0x003e
    29. 

  29. #define MV88E6XXX_SMI_CMD_REG_ADDR_MASK		0x001f
    30. 

  30. 

  31. /* Offset 0x01: SMI Data Register */
    32. 

  32. #define MV88E6XXX_SMI_DATA			0x01
    33. 

  33. 

  34. int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
    35. 

  35. 		       struct mii_bus *bus, int sw_addr);
    36. 

  36. 

  37. static inline int mv88e6xxx_smi_read(struct mv88e6xxx_chip *chip,
    38. 

  38. 				     int dev, int reg, u16 *data)
    39. 

  39. {
    40. 

  40. 	if (chip->smi_ops && chip->smi_ops->read)
    41. 

  41. 		return chip->smi_ops->read(chip, dev, reg, data);
    42. 

  42. 

  43. 	return -EOPNOTSUPP;
    44. 

  44. }
    45. 

  45. 

  46. static inline int mv88e6xxx_smi_write(struct mv88e6xxx_chip *chip,
    47. 

  47. 				      int dev, int reg, u16 data)
    48. 

  48. {
    49. 

  49. 	if (chip->smi_ops && chip->smi_ops->write)
    50. 

  50. 		return chip->smi_ops->write(chip, dev, reg, data);
    51. 

  51. 

  52. 	return -EOPNOTSUPP;
    53. 

  53. }
    54. 

  54. 

  55. #endif /* _MV88E6XXX_SMI_H */
    56.