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arm
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mach-sa1100
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shannon.c

shannon.c 2.1 KB
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  1. /*
    2. 

  2.  * linux/arch/arm/mach-sa1100/shannon.c
    3. 

  3.  */
    4. 

  4. 

  5. #include <linux/init.h>
    6. 

  6. #include <linux/device.h>
    7. 

  7. #include <linux/kernel.h>
    8. 

  8. #include <linux/tty.h>
    9. 

  9. #include <linux/mtd/mtd.h>
    10. 

  10. #include <linux/mtd/partitions.h>
    11. 

  11. 

  12. #include <mach/hardware.h>
    13. 

  13. #include <asm/mach-types.h>
    14. 

  14. #include <asm/setup.h>
    15. 

  15. 

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

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

  18. #include <asm/mach/map.h>
    19. 

  19. #include <asm/mach/serial_sa1100.h>
    20. 

  20. #include <mach/mcp.h>
    21. 

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

  22. 

  23. #include "generic.h"
    24. 

  24. 

  25. static struct mtd_partition shannon_partitions[] = {
    26. 

  26. 	{
    27. 

  27. 		.name		= "BLOB boot loader",
    28. 

  28. 		.offset		= 0,
    29. 

  29. 		.size		= 0x20000
    30. 

  30. 	},
    31. 

  31. 	{
    32. 

  32. 		.name		= "kernel",
    33. 

  33. 		.offset		= MTDPART_OFS_APPEND,
    34. 

  34. 		.size		= 0xe0000
    35. 

  35. 	},
    36. 

  36. 	{
    37. 

  37. 		.name		= "initrd",
    38. 

  38. 		.offset		= MTDPART_OFS_APPEND,	
    39. 

  39. 		.size		= MTDPART_SIZ_FULL
    40. 

  40. 	}
    41. 

  41. };
    42. 

  42. 

  43. static struct flash_platform_data shannon_flash_data = {
    44. 

  44. 	.map_name	= "cfi_probe",
    45. 

  45. 	.parts		= shannon_partitions,
    46. 

  46. 	.nr_parts	= ARRAY_SIZE(shannon_partitions),
    47. 

  47. };
    48. 

  48. 

  49. static struct resource shannon_flash_resource = {
    50. 

  50. 	.start		= SA1100_CS0_PHYS,
    51. 

  51. 	.end		= SA1100_CS0_PHYS + SZ_4M - 1,
    52. 

  52. 	.flags		= IORESOURCE_MEM,
    53. 

  53. };
    54. 

  54. 

  55. static struct mcp_plat_data shannon_mcp_data = {
    56. 

  56. 	.mccr0		= MCCR0_ADM,
    57. 

  57. 	.sclk_rate	= 11981000,
    58. 

  58. 	.codec		= "ucb1x00",
    59. 

  59. };
    60. 

  60. 

  61. static void __init shannon_init(void)
    62. 

  62. {
    63. 

  63. 	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
    64. 

  64. 

  65. 	/*
    66. 

  66. 	 * Setup the PPC unit correctly.
    67. 

  67. 	 */
    68. 

  68. 	PPDR &= ~PPC_RXD4;
    69. 

  69. 	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
    70. 

  70. 	PSDR |= PPC_RXD4;
    71. 

  71. 	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
    72. 

  72. 	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
    73. 

  73. 

  74. 	sa11x0_register_mcp(&shannon_mcp_data);
    75. 

  75. }
    76. 

  76. 

  77. static void __init shannon_map_io(void)
    78. 

  78. {
    79. 

  79. 	sa1100_map_io();
    80. 

  80. 

  81. 	sa1100_register_uart(0, 3);
    82. 

  82. 	sa1100_register_uart(1, 1);
    83. 

  83. 

  84. 	Ser1SDCR0 |= SDCR0_SUS;
    85. 

  85. 	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
    86. 

  86. 	GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
    87. 

  87. 	GPDR &= ~GPIO_UART_RXD;
    88. 

  88. 	PPAR |= PPAR_UPR;
    89. 

  89. 

  90. 	/* reset the codec */
    91. 

  91. 	GPCR = SHANNON_GPIO_CODEC_RESET;
    92. 

  92. 	GPSR = SHANNON_GPIO_CODEC_RESET;
    93. 

  93. }
    94. 

  94. 

  95. MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
    96. 

  96. 	.atag_offset	= 0x100,
    97. 

  97. 	.map_io		= shannon_map_io,
    98. 

  98. 	.init_irq	= sa1100_init_irq,
    99. 

  99. 	.timer		= &sa1100_timer,
    100. 

  100. 	.init_machine	= shannon_init,
    101. 

  101. 	.restart	= sa11x0_restart,
    102. 

  102. MACHINE_END
    103.