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mach-s5p6442
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mach-smdk6442.c

mach-smdk6442.c 2.4 KB
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  1. /* linux/arch/arm/mach-s5p6442/mach-smdk6442.c
    2. 

  2.  *
    3. 

  3.  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
    4. 

  4.  *		http://www.samsung.com/
    5. 

  5.  *
    6. 

  6.  * This program is free software; you can redistribute it and/or modify
    7. 

  7.  * it under the terms of the GNU General Public License version 2 as
    8. 

  8.  * published by the Free Software Foundation.
    9. 

  9. */
    10. 

  10. 

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

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

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

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

  15. 

  16. #include <asm/mach/arch.h>
    17. 

  17. #include <asm/mach/map.h>
    18. 

  18. #include <asm/setup.h>
    19. 

  19. #include <asm/mach-types.h>
    20. 

  20. 

  21. #include <mach/map.h>
    22. 

  22. #include <mach/regs-clock.h>
    23. 

  23. 

  24. #include <plat/regs-serial.h>
    25. 

  25. #include <plat/s5p6442.h>
    26. 

  26. #include <plat/devs.h>
    27. 

  27. #include <plat/cpu.h>
    28. 

  28. 

  29. /* Following are default values for UCON, ULCON and UFCON UART registers */
    30. 

  30. #define SMDK6442_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
    31. 

  31. 				 S3C2410_UCON_RXILEVEL |	\
    32. 

  32. 				 S3C2410_UCON_TXIRQMODE |	\
    33. 

  33. 				 S3C2410_UCON_RXIRQMODE |	\
    34. 

  34. 				 S3C2410_UCON_RXFIFO_TOI |	\
    35. 

  35. 				 S3C2443_UCON_RXERR_IRQEN)
    36. 

  36. 

  37. #define SMDK6442_ULCON_DEFAULT	S3C2410_LCON_CS8
    38. 

  38. 

  39. #define SMDK6442_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
    40. 

  40. 				 S5PV210_UFCON_TXTRIG4 |	\
    41. 

  41. 				 S5PV210_UFCON_RXTRIG4)
    42. 

  42. 

  43. static struct s3c2410_uartcfg smdk6442_uartcfgs[] __initdata = {
    44. 

  44. 	[0] = {
    45. 

  45. 		.hwport		= 0,
    46. 

  46. 		.flags		= 0,
    47. 

  47. 		.ucon		= SMDK6442_UCON_DEFAULT,
    48. 

  48. 		.ulcon		= SMDK6442_ULCON_DEFAULT,
    49. 

  49. 		.ufcon		= SMDK6442_UFCON_DEFAULT,
    50. 

  50. 	},
    51. 

  51. 	[1] = {
    52. 

  52. 		.hwport		= 1,
    53. 

  53. 		.flags		= 0,
    54. 

  54. 		.ucon		= SMDK6442_UCON_DEFAULT,
    55. 

  55. 		.ulcon		= SMDK6442_ULCON_DEFAULT,
    56. 

  56. 		.ufcon		= SMDK6442_UFCON_DEFAULT,
    57. 

  57. 	},
    58. 

  58. 	[2] = {
    59. 

  59. 		.hwport		= 2,
    60. 

  60. 		.flags		= 0,
    61. 

  61. 		.ucon		= SMDK6442_UCON_DEFAULT,
    62. 

  62. 		.ulcon		= SMDK6442_ULCON_DEFAULT,
    63. 

  63. 		.ufcon		= SMDK6442_UFCON_DEFAULT,
    64. 

  64. 	},
    65. 

  65. };
    66. 

  66. 

  67. static struct platform_device *smdk6442_devices[] __initdata = {
    68. 

  68. 	&s5p6442_device_iis0,
    69. 

  69. 	&s3c_device_wdt,
    70. 

  70. };
    71. 

  71. 

  72. static void __init smdk6442_map_io(void)
    73. 

  73. {
    74. 

  74. 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
    75. 

  75. 	s3c24xx_init_clocks(12000000);
    76. 

  76. 	s3c24xx_init_uarts(smdk6442_uartcfgs, ARRAY_SIZE(smdk6442_uartcfgs));
    77. 

  77. }
    78. 

  78. 

  79. static void __init smdk6442_machine_init(void)
    80. 

  80. {
    81. 

  81. 	platform_add_devices(smdk6442_devices, ARRAY_SIZE(smdk6442_devices));
    82. 

  82. }
    83. 

  83. 

  84. MACHINE_START(SMDK6442, "SMDK6442")
    85. 

  85. 	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
    86. 

  86. 	.phys_io	= S3C_PA_UART & 0xfff00000,
    87. 

  87. 	.io_pg_offst	= (((u32)S3C_VA_UART) >> 18) & 0xfffc,
    88. 

  88. 	.boot_params	= S5P_PA_SDRAM + 0x100,
    89. 

  89. 	.init_irq	= s5p6442_init_irq,
    90. 

  90. 	.map_io		= smdk6442_map_io,
    91. 

  91. 	.init_machine	= smdk6442_machine_init,
    92. 

  92. 	.timer		= &s3c24xx_timer,
    93. 

  93. MACHINE_END
    94.