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linux-vybrid_pu...
/
arch
/
arm
/
mach-s3c2410
/
clock.h

clock.h 1.7 KB
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  1. /*
    2. 

  2.  * linux/arch/arm/mach-s3c2410/clock.h
    3. 

  3.  *
    4. 

  4.  * Copyright (c) 2004-2005 Simtec Electronics
    5. 

  5.  *	http://www.simtec.co.uk/products/SWLINUX/
    6. 

  6.  *	Written by Ben Dooks, <ben@simtec.co.uk>
    7. 

  7.  *
    8. 

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

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

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

  11. */
    12. 

  12. 

  13. struct clk {
    14. 

  14. 	struct list_head      list;
    15. 

  15. 	struct module        *owner;
    16. 

  16. 	struct clk           *parent;
    17. 

  17. 	const char           *name;
    18. 

  18. 	int		      id;
    19. 

  19. 	int		      usage;
    20. 

  20. 	unsigned long         rate;
    21. 

  21. 	unsigned long         ctrlbit;
    22. 

  22. 

  23. 	int		    (*enable)(struct clk *, int enable);
    24. 

  24. 	int		    (*set_rate)(struct clk *c, unsigned long rate);
    25. 

  25. 	unsigned long	    (*get_rate)(struct clk *c);
    26. 

  26. 	unsigned long	    (*round_rate)(struct clk *c, unsigned long rate);
    27. 

  27. 	int		    (*set_parent)(struct clk *c, struct clk *parent);
    28. 

  28. };
    29. 

  29. 

  30. /* other clocks which may be registered by board support */
    31. 

  31. 

  32. extern struct clk s3c24xx_dclk0;
    33. 

  33. extern struct clk s3c24xx_dclk1;
    34. 

  34. extern struct clk s3c24xx_clkout0;
    35. 

  35. extern struct clk s3c24xx_clkout1;
    36. 

  36. extern struct clk s3c24xx_uclk;
    37. 

  37. 

  38. extern struct clk clk_usb_bus;
    39. 

  39. 

  40. /* core clock support */
    41. 

  41. 

  42. extern struct clk clk_f;
    43. 

  43. extern struct clk clk_h;
    44. 

  44. extern struct clk clk_p;
    45. 

  45. extern struct clk clk_mpll;
    46. 

  46. extern struct clk clk_upll;
    47. 

  47. extern struct clk clk_xtal;
    48. 

  48. 

  49. /* exports for arch/arm/mach-s3c2410
    50. 

  50.  *
    51. 

  51.  * Please DO NOT use these outside of arch/arm/mach-s3c2410
    52. 

  52. */
    53. 

  53. 

  54. extern struct mutex clocks_mutex;
    55. 

  55. 

  56. extern int s3c2410_clkcon_enable(struct clk *clk, int enable);
    57. 

  57. 

  58. extern int s3c24xx_register_clock(struct clk *clk);
    59. 

  59. 

  60. extern int s3c24xx_setup_clocks(unsigned long xtal,
    61. 

  61. 				unsigned long fclk,
    62. 

  62. 				unsigned long hclk,
    63. 

  63. 				unsigned long pclk);
    64.