LXR uboot/include/ioports.h

   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/*
  10 * this structure mirrors the layout of the five port registers in
  11 * the internal memory map - see iop8260_t in <asm/immap_8260.h>
  12 */
  13typedef struct {
  14    unsigned int pdir;          /* Port Data Direction Register (35-3) */
  15    unsigned int ppar;          /* Port Pin Assignment Register (35-4) */
  16    unsigned int psor;          /* Port Special Options Register (35-5) */
  17    unsigned int podr;          /* Port Open Drain Register (35-2) */
  18    unsigned int pdat;          /* Port Data Register (35-3) */
  19} ioport_t;
  20
  21/*
  22 * this macro calculates the address within the internal
  23 * memory map (im) of the set of registers for a port (idx)
  24 *
  25 * the internal memory map aligns the above structure on
  26 * a 0x20 byte boundary
  27 */
  28#ifdef CONFIG_MPC85xx
  29#define ioport_addr(im, idx) (ioport_t *)((uint)&(im->im_cpm_iop) + ((idx)*0x20))
  30#else
  31#define ioport_addr(im, idx) (ioport_t *)((uint)&(im)->im_ioport + ((idx)*0x20))
  32#endif
  33
  34/*
  35 * this structure provides configuration
  36 * information for one port pin
  37 */
  38typedef struct {
  39    unsigned char conf:1;       /* if 1, configure this port */
  40    unsigned char ppar:1;       /* Port Pin Assignment Register (35-4) */
  41    unsigned char psor:1;       /* Port Special Options Register (35-2) */
  42    unsigned char pdir:1;       /* Port Data Direction Register (35-3) */
  43    unsigned char podr:1;       /* Port Open Drain Register (35-2) */
  44    unsigned char pdat:1;       /* Port Data Register (35-2) */
  45} iop_conf_t;
  46
  47/*
  48 * a table that contains configuration information for all 32 pins
  49 * of all four MPC8260 I/O ports.
  50 *
  51 * NOTE: in the second dimension of this table, index 0 refers to pin 31
  52 * and index 31 refers to pin 0. this made the code in the table look more
  53 * like the table in the 8260UM (and in the hymod manuals).
  54 */
  55extern const iop_conf_t iop_conf_tab[4][32];
  56
  57typedef struct {
  58        unsigned char   port;
  59        unsigned char   pin;
  60        int             dir;
  61        int             open_drain;
  62        int             assign;
  63} qe_iop_conf_t;
  64
  65#define QE_IOP_TAB_END  (-1)
  66