ioports.h 2.0 KB

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  1. /*
  2. * definitions for MPC8260 I/O Ports
  3. *
  4. * (in addition to those provided in <asm/immap_8260.h>)
  5. *
  6. * Murray.Jensen@cmst.csiro.au, 20-Oct-00
  7. */
  8. /*
  9. * this structure mirrors the layout of the five port registers in
  10. * the internal memory map - see iop8260_t in <asm/immap_8260.h>
  11. */
  12. typedef struct {
  13. unsigned int pdir; /* Port Data Direction Register (35-3) */
  14. unsigned int ppar; /* Port Pin Assignment Register (35-4) */
  15. unsigned int psor; /* Port Special Options Register (35-5) */
  16. unsigned int podr; /* Port Open Drain Register (35-2) */
  17. unsigned int pdat; /* Port Data Register (35-3) */
  18. } ioport_t;
  19. /*
  20. * this macro calculates the address within the internal
  21. * memory map (im) of the set of registers for a port (idx)
  22. *
  23. * the internal memory map aligns the above structure on
  24. * a 0x20 byte boundary
  25. */
  26. #ifdef CONFIG_MPC85xx
  27. #define ioport_addr(im, idx) (ioport_t *)((uint)&(im->im_cpm_iop) + ((idx)*0x20))
  28. #else
  29. #define ioport_addr(im, idx) (ioport_t *)((uint)&(im)->im_ioport + ((idx)*0x20))
  30. #endif
  31. /*
  32. * this structure provides configuration
  33. * information for one port pin
  34. */
  35. typedef struct {
  36. unsigned char conf:1; /* if 1, configure this port */
  37. unsigned char ppar:1; /* Port Pin Assignment Register (35-4) */
  38. unsigned char psor:1; /* Port Special Options Register (35-2) */
  39. unsigned char pdir:1; /* Port Data Direction Register (35-3) */
  40. unsigned char podr:1; /* Port Open Drain Register (35-2) */
  41. unsigned char pdat:1; /* Port Data Register (35-2) */
  42. } iop_conf_t;
  43. /*
  44. * a table that contains configuration information for all 32 pins
  45. * of all four MPC8260 I/O ports.
  46. *
  47. * NOTE: in the second dimension of this table, index 0 refers to pin 31
  48. * and index 31 refers to pin 0. this made the code in the table look more
  49. * like the table in the 8260UM (and in the hymod manuals).
  50. */
  51. extern const iop_conf_t iop_conf_tab[4][32];
  52. typedef struct {
  53. unsigned char port;
  54. unsigned char pin;
  55. int dir;
  56. int open_drain;
  57. int assign;
  58. } qe_iop_conf_t;
  59. #define QE_IOP_TAB_END (-1)