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asm-arm
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hardware
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entry-macro-iomd.S

entry-macro-iomd.S 6.1 KB
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  1. /*
    2. 

  2.  * arch/arm/commond/entry-macro-iomd.S
    3. 

  3.  *
    4. 

  4.  * Low-level IRQ helper macros for IOC/IOMD based platforms
    5. 

  5.  *
    6. 

  6.  * This file is licensed under  the terms of the GNU General Public
    7. 

  7.  * License version 2. This program is licensed "as is" without any
    8. 

  8.  * warranty of any kind, whether express or implied.
    9. 

  9.  */
    10. 

  10. 

  11. /* IOC / IOMD based hardware */
    12. 

  12. #include <asm/hardware/iomd.h>
    13. 

  13. 

  14. 		.equ	ioc_base_high, IOC_BASE & 0xff000000
    15. 

  15. 		.equ	ioc_base_low, IOC_BASE & 0x00ff0000
    16. 

  16. 		.macro	disable_fiq
    17. 

  17. 		mov	r12, #ioc_base_high
    18. 

  18. 		.if	ioc_base_low
    19. 

  19. 		orr	r12, r12, #ioc_base_low
    20. 

  20. 		.endif
    21. 

  21. 		strb	r12, [r12, #0x38]	@ Disable FIQ register
    22. 

  22. 		.endm
    23. 

  23. 

  24. 		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
    25. 

  25. 		mov	r4, #ioc_base_high		@ point at IOC
    26. 

  26. 		.if	ioc_base_low
    27. 

  27. 		orr	r4, r4, #ioc_base_low
    28. 

  28. 		.endif
    29. 

  29. 		ldrb	\irqstat, [r4, #IOMD_IRQREQB]	@ get high priority first
    30. 

  30. 		ldr	\base, =irq_prio_h
    31. 

  31. 		teq	\irqstat, #0
    32. 

  32. #ifdef IOMD_BASE
    33. 

  33. 		ldreqb	\irqstat, [r4, #IOMD_DMAREQ]	@ get dma
    34. 

  34. 		addeq	\base, \base, #256		@ irq_prio_h table size
    35. 

  35. 		teqeq	\irqstat, #0
    36. 

  36. 		bne	2406f
    37. 

  37. #endif
    38. 

  38. 		ldreqb	\irqstat, [r4, #IOMD_IRQREQA]	@ get low priority
    39. 

  39. 		addeq	\base, \base, #256		@ irq_prio_d table size
    40. 

  40. 		teqeq	\irqstat, #0
    41. 

  41. #ifdef IOMD_IRQREQC
    42. 

  42. 		ldreqb	\irqstat, [r4, #IOMD_IRQREQC]
    43. 

  43. 		addeq	\base, \base, #256		@ irq_prio_l table size
    44. 

  44. 		teqeq	\irqstat, #0
    45. 

  45. #endif
    46. 

  46. #ifdef IOMD_IRQREQD
    47. 

  47. 		ldreqb	\irqstat, [r4, #IOMD_IRQREQD]
    48. 

  48. 		addeq	\base, \base, #256		@ irq_prio_lc table size
    49. 

  49. 		teqeq	\irqstat, #0
    50. 

  50. #endif
    51. 

  51. 2406:		ldrneb	\irqnr, [\base, \irqstat]	@ get IRQ number
    52. 

  52. 		.endm
    53. 

  53. 

  54. /*
    55. 

  55.  * Interrupt table (incorporates priority).  Please note that we
    56. 

  56.  * rely on the order of these tables (see above code).
    57. 

  57.  */
    58. 

  58. 		.align	5
    59. 

  59. irq_prio_h:	.byte	 0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
    60. 

  60. 		.byte	12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
    61. 

  61. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    62. 

  62. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    63. 

  63. 		.byte	14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
    64. 

  64. 		.byte	14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
    65. 

  65. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    66. 

  66. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    67. 

  67. 		.byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
    68. 

  68. 		.byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
    69. 

  69. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    70. 

  70. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    71. 

  71. 		.byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
    72. 

  72. 		.byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
    73. 

  73. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    74. 

  74. 		.byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
    75. 

  75. #ifdef IOMD_BASE
    76. 

  76. irq_prio_d:	.byte	 0,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    77. 

  77. 		.byte	20,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    78. 

  78. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    79. 

  79. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    80. 

  80. 		.byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    81. 

  81. 		.byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    82. 

  82. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    83. 

  83. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    84. 

  84. 		.byte	23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    85. 

  85. 		.byte	23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    86. 

  86. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    87. 

  87. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    88. 

  88. 		.byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    89. 

  89. 		.byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    90. 

  90. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    91. 

  91. 		.byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
    92. 

  92. #endif
    93. 

  93. irq_prio_l:	.byte	 0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
    94. 

  94. 		.byte	 4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
    95. 

  95. 		.byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
    96. 

  96. 		.byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
    97. 

  97. 		.byte	 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
    98. 

  98. 		.byte	 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
    99. 

  99. 		.byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
    100. 

  100. 		.byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
    101. 

  101. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    102. 

  102. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    103. 

  103. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    104. 

  104. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    105. 

  105. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    106. 

  106. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    107. 

  107. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    108. 

  108. 		.byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
    109. 

  109. #ifdef IOMD_IRQREQC
    110. 

  110. irq_prio_lc:	.byte	24,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
    111. 

  111. 		.byte	28,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
    112. 

  112. 		.byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
    113. 

  113. 		.byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
    114. 

  114. 		.byte	30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
    115. 

  115. 		.byte	30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
    116. 

  116. 		.byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
    117. 

  117. 		.byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
    118. 

  118. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    119. 

  119. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    120. 

  120. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    121. 

  121. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    122. 

  122. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    123. 

  123. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    124. 

  124. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    125. 

  125. 		.byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
    126. 

  126. #endif
    127. 

  127. #ifdef IOMD_IRQREQD
    128. 

  128. irq_prio_ld:	.byte	40,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
    129. 

  129. 		.byte	44,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
    130. 

  130. 		.byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
    131. 

  131. 		.byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
    132. 

  132. 		.byte	46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
    133. 

  133. 		.byte	46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
    134. 

  134. 		.byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
    135. 

  135. 		.byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
    136. 

  136. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    137. 

  137. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    138. 

  138. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    139. 

  139. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    140. 

  140. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    141. 

  141. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    142. 

  142. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    143. 

  143. 		.byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
    144. 

  144. #endif
    145. 

  145.