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mach-at91
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board-dt-sama5.c

board-dt-sama5.c 1.7 KB
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  1. /*
    2. 

  2.  *  Setup code for SAMA5 Evaluation Kits with Device Tree support
    3. 

  3.  *
    4. 

  4.  *  Copyright (C) 2013 Atmel,
    5. 

  5.  *                2013 Ludovic Desroches <ludovic.desroches@atmel.com>
    6. 

  6.  *
    7. 

  7.  * Licensed under GPLv2 or later.
    8. 

  8.  */
    9. 

  9. 

  10. #include <linux/types.h>
    11. 

  11. #include <linux/init.h>
    12. 

  12. #include <linux/module.h>
    13. 

  13. #include <linux/gpio.h>
    14. 

  14. #include <linux/micrel_phy.h>
    15. 

  15. #include <linux/of.h>
    16. 

  16. #include <linux/of_irq.h>
    17. 

  17. #include <linux/of_platform.h>
    18. 

  18. #include <linux/phy.h>
    19. 

  19. #include <linux/clk-provider.h>
    20. 

  20. #include <linux/phy.h>
    21. 

  21. 

  22. #include <asm/setup.h>
    23. 

  23. #include <asm/irq.h>
    24. 

  24. #include <asm/mach/arch.h>
    25. 

  25. #include <asm/mach/map.h>
    26. 

  26. #include <asm/mach/irq.h>
    27. 

  27. 

  28. #include "generic.h"
    29. 

  29. 

  30. static int ksz8081_phy_fixup(struct phy_device *phy)
    31. 

  31. {
    32. 

  32. 	int value;
    33. 

  33. 

  34. 	value = phy_read(phy, 0x16);
    35. 

  35. 	value &= ~0x20;
    36. 

  36. 	phy_write(phy, 0x16, value);
    37. 

  37. 

  38. 	return 0;
    39. 

  39. }
    40. 

  40. 

  41. static void __init sama5_dt_device_init(void)
    42. 

  42. {
    43. 

  43. 	if (of_machine_is_compatible("atmel,sama5d4ek") &&
    44. 

  44. 	   IS_ENABLED(CONFIG_PHYLIB)) {
    45. 

  45. 		phy_register_fixup_for_id("fc028000.etherne:00",
    46. 

  46. 						ksz8081_phy_fixup);
    47. 

  47. 	}
    48. 

  48. 

  49. 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
    50. 

  50. }
    51. 

  51. 

  52. static const char *sama5_dt_board_compat[] __initconst = {
    53. 

  53. 	"atmel,sama5",
    54. 

  54. 	NULL
    55. 

  55. };
    56. 

  56. 

  57. DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)")
    58. 

  58. 	/* Maintainer: Atmel */
    59. 

  59. 	.map_io		= at91_map_io,
    60. 

  60. 	.init_early	= at91_dt_initialize,
    61. 

  61. 	.init_machine	= sama5_dt_device_init,
    62. 

  62. 	.dt_compat	= sama5_dt_board_compat,
    63. 

  63. MACHINE_END
    64. 

  64. 

  65. static const char *sama5_alt_dt_board_compat[] __initconst = {
    66. 

  66. 	"atmel,sama5d4",
    67. 

  67. 	NULL
    68. 

  68. };
    69. 

  69. 

  70. DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5 (Device Tree)")
    71. 

  71. 	/* Maintainer: Atmel */
    72. 

  72. 	.map_io		= at91_alt_map_io,
    73. 

  73. 	.init_early	= at91_dt_initialize,
    74. 

  74. 	.init_machine	= sama5_dt_device_init,
    75. 

  75. 	.dt_compat	= sama5_alt_dt_board_compat,
    76. 

  76. 	.l2c_aux_mask	= ~0UL,
    77. 

  77. MACHINE_END
    78.