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mach-exynos
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mach-exynos4-dt.c

mach-exynos4-dt.c 1.6 KB
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  1. /*
    2. 

  2.  * Samsung's EXYNOS4 flattened device tree enabled machine
    3. 

  3.  *
    4. 

  4.  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
    5. 

  5.  *		http://www.samsung.com
    6. 

  6.  * Copyright (c) 2010-2011 Linaro Ltd.
    7. 

  7.  *		www.linaro.org
    8. 

  8.  *
    9. 

  9.  * This program is free software; you can redistribute it and/or modify
    10. 

  10.  * it under the terms of the GNU General Public License version 2 as
    11. 

  11.  * published by the Free Software Foundation.
    12. 

  12. */
    13. 

  13. 

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

  15. #include <linux/of_platform.h>
    16. 

  16. #include <linux/of_fdt.h>
    17. 

  17. #include <linux/serial_core.h>
    18. 

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

  19. 

  20. #include <asm/mach/arch.h>
    21. 

  21. #include <plat/mfc.h>
    22. 

  22. 

  23. #include "common.h"
    24. 

  24. 

  25. static void __init exynos4_dt_machine_init(void)
    26. 

  26. {
    27. 

  27. 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
    28. 

  28. }
    29. 

  29. 

  30. static char const *exynos4_dt_compat[] __initdata = {
    31. 

  31. 	"samsung,exynos4210",
    32. 

  32. 	"samsung,exynos4212",
    33. 

  33. 	"samsung,exynos4412",
    34. 

  34. 	NULL
    35. 

  35. };
    36. 

  36. 

  37. static void __init exynos4_reserve(void)
    38. 

  38. {
    39. 

  39. #ifdef CONFIG_S5P_DEV_MFC
    40. 

  40. 	struct s5p_mfc_dt_meminfo mfc_mem;
    41. 

  41. 

  42. 	/* Reserve memory for MFC only if it's available */
    43. 

  43. 	mfc_mem.compatible = "samsung,mfc-v5";
    44. 

  44. 	if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
    45. 

  45. 		s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
    46. 

  46. 				mfc_mem.lsize);
    47. 

  47. #endif
    48. 

  48. }
    49. 

  49. DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
    50. 

  50. 	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
    51. 

  51. 	.smp		= smp_ops(exynos_smp_ops),
    52. 

  52. 	.map_io		= exynos_init_io,
    53. 

  53. 	.init_early	= exynos_firmware_init,
    54. 

  54. 	.init_machine	= exynos4_dt_machine_init,
    55. 

  55. 	.init_late	= exynos_init_late,
    56. 

  56. 	.dt_compat	= exynos4_dt_compat,
    57. 

  57. 	.restart        = exynos4_restart,
    58. 

  58. 	.reserve	= exynos4_reserve,
    59. 

  59. MACHINE_END
    60.