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linux-vybrid_pu...
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drivers
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net
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ibm_newemac
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rgmii.h

rgmii.h 2.2 KB
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  1. /*
    2. 

  2.  * drivers/net/ibm_newemac/rgmii.h
    3. 

  3.  *
    4. 

  4.  * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
    5. 

  5.  *
    6. 

  6.  * Based on ocp_zmii.h/ibm_emac_zmii.h
    7. 

  7.  * Armin Kuster akuster@mvista.com
    8. 

  8.  *
    9. 

  9.  * Copyright 2004 MontaVista Software, Inc.
    10. 

  10.  * Matt Porter <mporter@kernel.crashing.org>
    11. 

  11.  *
    12. 

  12.  * Copyright (c) 2004, 2005 Zultys Technologies.
    13. 

  13.  * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
    14. 

  14.  *
    15. 

  15.  * This program is free software; you can redistribute  it and/or modify it
    16. 

  16.  * under  the terms of  the GNU General  Public License as published by the
    17. 

  17.  * Free Software Foundation;  either version 2 of the  License, or (at your
    18. 

  18.  * option) any later version.
    19. 

  19.  */
    20. 

  20. 

  21. #ifndef __IBM_NEWEMAC_RGMII_H
    22. 

  22. #define __IBM_NEWEMAC_RGMII_H
    23. 

  23. 

  24. /* RGMII bridge type */
    25. 

  25. #define RGMII_STANDARD		0
    26. 

  26. #define RGMII_AXON		1
    27. 

  27. 

  28. /* RGMII bridge */
    29. 

  29. struct rgmii_regs {
    30. 

  30. 	u32 fer;		/* Function enable register */
    31. 

  31. 	u32 ssr;		/* Speed select register */
    32. 

  32. };
    33. 

  33. 

  34. /* RGMII device */
    35. 

  35. struct rgmii_instance {
    36. 

  36. 	struct rgmii_regs __iomem	*base;
    37. 

  37. 

  38. 	/* RGMII bridge flags */
    39. 

  39. 	int				flags;
    40. 

  40. #define EMAC_RGMII_FLAG_HAS_MDIO	0x00000001
    41. 

  41. 

  42. 	/* Only one EMAC whacks us at a time */
    43. 

  43. 	struct mutex			lock;
    44. 

  44. 

  45. 	/* number of EMACs using this RGMII bridge */
    46. 

  46. 	int				users;
    47. 

  47. 

  48. 	/* OF device instance */
    49. 

  49. 	struct of_device		*ofdev;
    50. 

  50. };
    51. 

  51. 

  52. #ifdef CONFIG_IBM_NEW_EMAC_RGMII
    53. 

  53. 

  54. extern int rgmii_init(void);
    55. 

  55. extern void rgmii_exit(void);
    56. 

  56. extern int rgmii_attach(struct of_device *ofdev, int input, int mode);
    57. 

  57. extern void rgmii_detach(struct of_device *ofdev, int input);
    58. 

  58. extern void rgmii_get_mdio(struct of_device *ofdev, int input);
    59. 

  59. extern void rgmii_put_mdio(struct of_device *ofdev, int input);
    60. 

  60. extern void rgmii_set_speed(struct of_device *ofdev, int input, int speed);
    61. 

  61. extern int rgmii_get_regs_len(struct of_device *ofdev);
    62. 

  62. extern void *rgmii_dump_regs(struct of_device *ofdev, void *buf);
    63. 

  63. 

  64. #else
    65. 

  65. 

  66. # define rgmii_init()		0
    67. 

  67. # define rgmii_exit()		do { } while(0)
    68. 

  68. # define rgmii_attach(x,y,z)	(-ENXIO)
    69. 

  69. # define rgmii_detach(x,y)	do { } while(0)
    70. 

  70. # define rgmii_get_mdio(o,i)	do { } while (0)
    71. 

  71. # define rgmii_put_mdio(o,i)	do { } while (0)
    72. 

  72. # define rgmii_set_speed(x,y,z)	do { } while(0)
    73. 

  73. # define rgmii_get_regs_len(x)	0
    74. 

  74. # define rgmii_dump_regs(x,buf)	(buf)
    75. 

  75. #endif				/* !CONFIG_IBM_NEW_EMAC_RGMII */
    76. 

  76. 

  77. #endif /* __IBM_NEWEMAC_RGMII_H */
    78.