/kern_oII/arch/arm/mach-w90x900/w90p910.c

http://omnia2droid.googlecode.com/ · C · 136 lines · 95 code · 19 blank · 22 comment · 2 complexity · 0fc4fb749be00d43a54cf0571f66cd42 MD5 · raw file 

    

  1. /*
    2. 

  2.  * linux/arch/arm/mach-w90x900/w90p910.c
    3. 

  3.  *
    4. 

  4.  * Based on linux/arch/arm/plat-s3c24xx/s3c244x.c by Ben Dooks
    5. 

  5.  *
    6. 

  6.  * Copyright (c) 2008 Nuvoton technology corporation.
    7. 

  7.  *
    8. 

  8.  * Wan ZongShun <mcuos.com@gmail.com>
    9. 

  9.  *
    10. 

  10.  * W90P910 cpu support
    11. 

  11.  *
    12. 

  12.  * This program is free software; you can redistribute it and/or modify
    13. 

  13.  * it under the terms of the GNU General Public License as published by
    14. 

  14.  * the Free Software Foundation;version 2 of the License.
    15. 

  15.  *
    16. 

  16.  */
    17. 

  17. 

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

  19. #include <linux/types.h>
    20. 

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

  21. #include <linux/list.h>
    22. 

  22. #include <linux/timer.h>
    23. 

  23. #include <linux/init.h>
    24. 

  24. #include <linux/platform_device.h>
    25. 

  25. #include <linux/io.h>
    26. 

  26. #include <linux/serial_8250.h>
    27. 

  27. 

  28. #include <asm/mach/arch.h>
    29. 

  29. #include <asm/mach/map.h>
    30. 

  30. #include <asm/mach/irq.h>
    31. 

  31. #include <asm/irq.h>
    32. 

  32. 

  33. #include <mach/hardware.h>
    34. 

  34. #include <mach/regs-serial.h>
    35. 

  35. 

  36. #include "cpu.h"
    37. 

  37. #include "clock.h"
    38. 

  38. 

  39. /* Initial IO mappings */
    40. 

  40. 

  41. static struct map_desc w90p910_iodesc[] __initdata = {
    42. 

  42. 	IODESC_ENT(IRQ),
    43. 

  43. 	IODESC_ENT(GCR),
    44. 

  44. 	IODESC_ENT(UART),
    45. 

  45. 	IODESC_ENT(TIMER),
    46. 

  46. 	IODESC_ENT(EBI),
    47. 

  47. 	IODESC_ENT(USBEHCIHOST),
    48. 

  48. 	IODESC_ENT(USBOHCIHOST),
    49. 

  49. 	IODESC_ENT(ADC),
    50. 

  50. 	IODESC_ENT(RTC),
    51. 

  51. 	IODESC_ENT(KPI),
    52. 

  52. 	IODESC_ENT(USBDEV),
    53. 

  53. 	/*IODESC_ENT(LCD),*/
    54. 

  54. };
    55. 

  55. 

  56. /* Initial clock declarations. */
    57. 

  57. static DEFINE_CLK(lcd, 0);
    58. 

  58. static DEFINE_CLK(audio, 1);
    59. 

  59. static DEFINE_CLK(fmi, 4);
    60. 

  60. static DEFINE_CLK(dmac, 5);
    61. 

  61. static DEFINE_CLK(atapi, 6);
    62. 

  62. static DEFINE_CLK(emc, 7);
    63. 

  63. static DEFINE_CLK(usbd, 8);
    64. 

  64. static DEFINE_CLK(usbh, 9);
    65. 

  65. static DEFINE_CLK(g2d, 10);;
    66. 

  66. static DEFINE_CLK(pwm, 18);
    67. 

  67. static DEFINE_CLK(ps2, 24);
    68. 

  68. static DEFINE_CLK(kpi, 25);
    69. 

  69. static DEFINE_CLK(wdt, 26);
    70. 

  70. static DEFINE_CLK(gdma, 27);
    71. 

  71. static DEFINE_CLK(adc, 28);
    72. 

  72. static DEFINE_CLK(usi, 29);
    73. 

  73. 

  74. static struct clk_lookup w90p910_clkregs[] = {
    75. 

  75. 	DEF_CLKLOOK(&clk_lcd, "w90p910-lcd", NULL),
    76. 

  76. 	DEF_CLKLOOK(&clk_audio, "w90p910-audio", NULL),
    77. 

  77. 	DEF_CLKLOOK(&clk_fmi, "w90p910-fmi", NULL),
    78. 

  78. 	DEF_CLKLOOK(&clk_dmac, "w90p910-dmac", NULL),
    79. 

  79. 	DEF_CLKLOOK(&clk_atapi, "w90p910-atapi", NULL),
    80. 

  80. 	DEF_CLKLOOK(&clk_emc, "w90p910-emc", NULL),
    81. 

  81. 	DEF_CLKLOOK(&clk_usbd, "w90p910-usbd", NULL),
    82. 

  82. 	DEF_CLKLOOK(&clk_usbh, "w90p910-usbh", NULL),
    83. 

  83. 	DEF_CLKLOOK(&clk_g2d, "w90p910-g2d", NULL),
    84. 

  84. 	DEF_CLKLOOK(&clk_pwm, "w90p910-pwm", NULL),
    85. 

  85. 	DEF_CLKLOOK(&clk_ps2, "w90p910-ps2", NULL),
    86. 

  86. 	DEF_CLKLOOK(&clk_kpi, "w90p910-kpi", NULL),
    87. 

  87. 	DEF_CLKLOOK(&clk_wdt, "w90p910-wdt", NULL),
    88. 

  88. 	DEF_CLKLOOK(&clk_gdma, "w90p910-gdma", NULL),
    89. 

  89. 	DEF_CLKLOOK(&clk_adc, "w90p910-adc", NULL),
    90. 

  90. 	DEF_CLKLOOK(&clk_usi, "w90p910-usi", NULL),
    91. 

  91. };
    92. 

  92. 

  93. /* Initial serial platform data */
    94. 

  94. 

  95. struct plat_serial8250_port w90p910_uart_data[] = {
    96. 

  96. 	W90X900_8250PORT(UART0),
    97. 

  97. };
    98. 

  98. 

  99. struct platform_device w90p910_serial_device = {
    100. 

  100. 	.name			= "serial8250",
    101. 

  101. 	.id			= PLAT8250_DEV_PLATFORM,
    102. 

  102. 	.dev			= {
    103. 

  103. 		.platform_data	= w90p910_uart_data,
    104. 

  104. 	},
    105. 

  105. };
    106. 

  106. 

  107. /*Init W90P910 evb io*/
    108. 

  108. 

  109. void __init w90p910_map_io(struct map_desc *mach_desc, int mach_size)
    110. 

  110. {
    111. 

  111. 	unsigned long idcode = 0x0;
    112. 

  112. 

  113. 	iotable_init(w90p910_iodesc, ARRAY_SIZE(w90p910_iodesc));
    114. 

  114. 

  115. 	idcode = __raw_readl(W90X900PDID);
    116. 

  116. 	if (idcode != W90P910_CPUID)
    117. 

  117. 		printk(KERN_ERR "CPU type 0x%08lx is not W90P910\n", idcode);
    118. 

  118. }
    119. 

  119. 

  120. /*Init W90P910 clock*/
    121. 

  121. 

  122. void __init w90p910_init_clocks(void)
    123. 

  123. {
    124. 

  124. 	clks_register(w90p910_clkregs, ARRAY_SIZE(w90p910_clkregs));
    125. 

  125. }
    126. 

  126. 

  127. static int __init w90p910_init_cpu(void)
    128. 

  128. {
    129. 

  129. 	return 0;
    130. 

  130. }
    131. 

  131. 

  132. static int __init w90x900_arch_init(void)
    133. 

  133. {
    134. 

  134. 	return w90p910_init_cpu();
    135. 

  135. }
    136. 

  136. arch_initcall(w90x900_arch_init);
    137.