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regs-iic.h

regs-iic.h 1.8 KB
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  1. /* arch/arm/mach-s3c2410/include/mach/regs-iic.h
    2. 

  2.  *
    3. 

  3.  * Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk>
    4. 

  4.  *		http://www.simtec.co.uk/products/SWLINUX/
    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.  * S3C2410 I2C Controller
    11. 

  11. */
    12. 

  12. 

  13. #ifndef __ASM_ARCH_REGS_IIC_H
    14. 

  14. #define __ASM_ARCH_REGS_IIC_H __FILE__
    15. 

  15. 

  16. /* see s3c2410x user guide, v1.1, section 9 (p447) for more info */
    17. 

  17. 

  18. #define S3C2410_IICREG(x) (x)
    19. 

  19. 

  20. #define S3C2410_IICCON    S3C2410_IICREG(0x00)
    21. 

  21. #define S3C2410_IICSTAT   S3C2410_IICREG(0x04)
    22. 

  22. #define S3C2410_IICADD    S3C2410_IICREG(0x08)
    23. 

  23. #define S3C2410_IICDS     S3C2410_IICREG(0x0C)
    24. 

  24. #define S3C2440_IICLC	  S3C2410_IICREG(0x10)
    25. 

  25. 

  26. #define S3C2410_IICCON_ACKEN		(1<<7)
    27. 

  27. #define S3C2410_IICCON_TXDIV_16		(0<<6)
    28. 

  28. #define S3C2410_IICCON_TXDIV_512	(1<<6)
    29. 

  29. #define S3C2410_IICCON_IRQEN		(1<<5)
    30. 

  30. #define S3C2410_IICCON_IRQPEND		(1<<4)
    31. 

  31. #define S3C2410_IICCON_SCALE(x)		((x)&15)
    32. 

  32. #define S3C2410_IICCON_SCALEMASK	(0xf)
    33. 

  33. 

  34. #define S3C2410_IICSTAT_MASTER_RX	(2<<6)
    35. 

  35. #define S3C2410_IICSTAT_MASTER_TX	(3<<6)
    36. 

  36. #define S3C2410_IICSTAT_SLAVE_RX	(0<<6)
    37. 

  37. #define S3C2410_IICSTAT_SLAVE_TX	(1<<6)
    38. 

  38. #define S3C2410_IICSTAT_MODEMASK	(3<<6)
    39. 

  39. 

  40. #define S3C2410_IICSTAT_START		(1<<5)
    41. 

  41. #define S3C2410_IICSTAT_BUSBUSY		(1<<5)
    42. 

  42. #define S3C2410_IICSTAT_TXRXEN		(1<<4)
    43. 

  43. #define S3C2410_IICSTAT_ARBITR		(1<<3)
    44. 

  44. #define S3C2410_IICSTAT_ASSLAVE		(1<<2)
    45. 

  45. #define S3C2410_IICSTAT_ADDR0		(1<<1)
    46. 

  46. #define S3C2410_IICSTAT_LASTBIT		(1<<0)
    47. 

  47. 

  48. #define S3C2410_IICLC_SDA_DELAY0	(0 << 0)
    49. 

  49. #define S3C2410_IICLC_SDA_DELAY5	(1 << 0)
    50. 

  50. #define S3C2410_IICLC_SDA_DELAY10	(2 << 0)
    51. 

  51. #define S3C2410_IICLC_SDA_DELAY15	(3 << 0)
    52. 

  52. #define S3C2410_IICLC_SDA_DELAY_MASK	(3 << 0)
    53. 

  53. 

  54. #define S3C2410_IICLC_FILTER_ON		(1<<2)
    55. 

  55. 

  56. #endif /* __ASM_ARCH_REGS_IIC_H */
    57. 

  57.