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linux-vybrid_pu...
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include
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asm-ppc
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pc_serial.h

pc_serial.h 5.1 KB
文件歷史 原始文件

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  1. /*
    2. 

  2.  * include/asm-ppc/pc_serial.h
    3. 

  3.  *
    4. 

  4.  * This is basically a copy of include/asm-i386/serial.h.
    5. 

  5.  * It is used on platforms which have an ISA bus and thus are likely
    6. 

  6.  * to have PC-style serial ports at the legacy I/O port addresses.
    7. 

  7.  * It also includes the definitions for the fourport, accent, boca
    8. 

  8.  * and hub6 multiport serial cards, although I have never heard of
    9. 

  9.  * anyone using any of those on a PPC platform.  -- paulus
    10. 

  10.  */
    11. 

  11. 

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

  13. 

  14. /*
    15. 

  15.  * This assumes you have a 1.8432 MHz clock for your UART.
    16. 

  16.  *
    17. 

  17.  * It'd be nice if someone built a serial card with a 24.576 MHz
    18. 

  18.  * clock, since the 16550A is capable of handling a top speed of 1.5
    19. 

  19.  * megabits/second; but this requires the faster clock.
    20. 

  20.  */
    21. 

  21. #define BASE_BAUD ( 1843200 / 16 )
    22. 

  22. 

  23. #ifdef CONFIG_SERIAL_MANY_PORTS
    24. 

  24. #define RS_TABLE_SIZE  64
    25. 

  25. #else
    26. 

  26. #define RS_TABLE_SIZE  4
    27. 

  27. #endif
    28. 

  28. 

  29. /* Standard COM flags (except for COM4, because of the 8514 problem) */
    30. 

  30. #ifdef CONFIG_SERIAL_DETECT_IRQ
    31. 

  31. #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
    32. 

  32. #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
    33. 

  33. #else
    34. 

  34. #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
    35. 

  35. #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
    36. 

  36. #endif
    37. 

  37. 

  38. #ifdef CONFIG_SERIAL_MANY_PORTS
    39. 

  39. #define FOURPORT_FLAGS ASYNC_FOURPORT
    40. 

  40. #define ACCENT_FLAGS 0
    41. 

  41. #define BOCA_FLAGS 0
    42. 

  42. #define HUB6_FLAGS 0
    43. 

  43. #endif
    44. 

  44. 	
    45. 

  45. /*
    46. 

  46.  * The following define the access methods for the HUB6 card. All
    47. 

  47.  * access is through two ports for all 24 possible chips. The card is
    48. 

  48.  * selected through the high 2 bits, the port on that card with the
    49. 

  49.  * "middle" 3 bits, and the register on that port with the bottom
    50. 

  50.  * 3 bits.
    51. 

  51.  *
    52. 

  52.  * While the access port and interrupt is configurable, the default
    53. 

  53.  * port locations are 0x302 for the port control register, and 0x303
    54. 

  54.  * for the data read/write register. Normally, the interrupt is at irq3
    55. 

  55.  * but can be anything from 3 to 7 inclusive. Note that using 3 will
    56. 

  56.  * require disabling com2.
    57. 

  57.  */
    58. 

  58. 

  59. #define C_P(card,port) (((card)<<6|(port)<<3) + 1)
    60. 

  60. 

  61. #define STD_SERIAL_PORT_DEFNS			\
    62. 

  62. 	/* UART CLK   PORT IRQ     FLAGS        */			\
    63. 

  63. 	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
    64. 

  64. 	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
    65. 

  65. 	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
    66. 

  66. 	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */
    67. 

  67. 

  68. 

  69. #ifdef CONFIG_SERIAL_MANY_PORTS
    70. 

  70. #define EXTRA_SERIAL_PORT_DEFNS			\
    71. 

  71. 	{ 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, 	/* ttyS4 */	\
    72. 

  72. 	{ 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS },	/* ttyS5 */	\
    73. 

  73. 	{ 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS },	/* ttyS6 */	\
    74. 

  74. 	{ 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS },	/* ttyS7 */	\
    75. 

  75. 	{ 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS },	/* ttyS8 */	\
    76. 

  76. 	{ 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS },	/* ttyS9 */	\
    77. 

  77. 	{ 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS },	/* ttyS10 */	\
    78. 

  78. 	{ 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS },	/* ttyS11 */	\
    79. 

  79. 	{ 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS },	/* ttyS12 */	\
    80. 

  80. 	{ 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS },	/* ttyS13 */	\
    81. 

  81. 	{ 0, BASE_BAUD, 0x000, 0, 0 },	/* ttyS14 (spare) */		\
    82. 

  82. 	{ 0, BASE_BAUD, 0x000, 0, 0 },	/* ttyS15 (spare) */		\
    83. 

  83. 	{ 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS },	/* ttyS16 */	\
    84. 

  84. 	{ 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS },	/* ttyS17 */	\
    85. 

  85. 	{ 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS },	/* ttyS18 */	\
    86. 

  86. 	{ 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS },	/* ttyS19 */	\
    87. 

  87. 	{ 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS },	/* ttyS20 */	\
    88. 

  88. 	{ 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS },	/* ttyS21 */	\
    89. 

  89. 	{ 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS },	/* ttyS22 */	\
    90. 

  90. 	{ 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS },	/* ttyS23 */	\
    91. 

  91. 	{ 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS },	/* ttyS24 */	\
    92. 

  92. 	{ 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS },	/* ttyS25 */	\
    93. 

  93. 	{ 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS },	/* ttyS26 */	\
    94. 

  94. 	{ 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS },	/* ttyS27 */	\
    95. 

  95. 	{ 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS },	/* ttyS28 */	\
    96. 

  96. 	{ 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS },	/* ttyS29 */	\
    97. 

  97. 	{ 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS },	/* ttyS30 */	\
    98. 

  98. 	{ 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS },	/* ttyS31 */
    99. 

  99. #else
    100. 

  100. #define EXTRA_SERIAL_PORT_DEFNS
    101. 

  101. #endif
    102. 

  102. 

  103. /* You can have up to four HUB6's in the system, but I've only
    104. 

  104.  * included two cards here for a total of twelve ports.
    105. 

  105.  */
    106. 

  106. #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))
    107. 

  107. #define HUB6_SERIAL_PORT_DFNS		\
    108. 

  108. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) },  /* ttyS32 */	\
    109. 

  109. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) },  /* ttyS33 */	\
    110. 

  110. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) },  /* ttyS34 */	\
    111. 

  111. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) },  /* ttyS35 */	\
    112. 

  112. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) },  /* ttyS36 */	\
    113. 

  113. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) },  /* ttyS37 */	\
    114. 

  114. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) },  /* ttyS38 */	\
    115. 

  115. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) },  /* ttyS39 */	\
    116. 

  116. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) },  /* ttyS40 */	\
    117. 

  117. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) },  /* ttyS41 */	\
    118. 

  118. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) },  /* ttyS42 */	\
    119. 

  119. 	{ 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) },  /* ttyS43 */
    120. 

  120. #else
    121. 

  121. #define HUB6_SERIAL_PORT_DFNS
    122. 

  122. #endif
    123. 

  123. 

  124. #define SERIAL_PORT_DFNS		\
    125. 

  125. 	STD_SERIAL_PORT_DEFNS		\
    126. 

  126. 	EXTRA_SERIAL_PORT_DEFNS		\
    127. 

  127. 	HUB6_SERIAL_PORT_DFNS
    128.