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include/ioports.h
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Initial Release, ...
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/*
* definitions for MPC8xxx I/O Ports
*
* Murray.Jensen@cmst.csiro.au, 20-Oct-00
*/
/*
* this structure mirrors the layout of the five port registers in
* the internal memory map
*/
typedef struct {
unsigned int pdir; /* Port Data Direction Register (35-3) */
unsigned int ppar; /* Port Pin Assignment Register (35-4) */
unsigned int psor; /* Port Special Options Register (35-5) */
unsigned int podr; /* Port Open Drain Register (35-2) */
unsigned int pdat; /* Port Data Register (35-3) */
} ioport_t;
/*
* this macro calculates the address within the internal
* memory map (im) of the set of registers for a port (idx)
*
* the internal memory map aligns the above structure on
* a 0x20 byte boundary
*/
#ifdef CONFIG_MPC85xx
#define ioport_addr(im, idx) (ioport_t *)((uint)&(im->im_cpm_iop) + ((idx)*0x20))
#else
#define ioport_addr(im, idx) (ioport_t *)((uint)&(im)->im_ioport + ((idx)*0x20))
#endif
/*
* this structure provides configuration
* information for one port pin
*/
typedef struct {
unsigned char conf:1; /* if 1, configure this port */
unsigned char ppar:1; /* Port Pin Assignment Register (35-4) */
unsigned char psor:1; /* Port Special Options Register (35-2) */
unsigned char pdir:1; /* Port Data Direction Register (35-3) */
unsigned char podr:1; /* Port Open Drain Register (35-2) */
unsigned char pdat:1; /* Port Data Register (35-2) */
} iop_conf_t;
/*
* a table that contains configuration information for all 32 pins
*
* NOTE: in the second dimension of this table, index 0 refers to pin 31
* and index 31 refers to pin 0. this made the code in the table look more
* like the table in the 8260UM (and in the hymod manuals).
*/
extern const iop_conf_t iop_conf_tab[4][32];
typedef struct {
unsigned char port;
unsigned char pin;
int dir;
int open_drain;
int assign;
} qe_iop_conf_t;
#define QE_IOP_TAB_END (-1)
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