u-boot/include/ioports.h
Jon Loeliger 9c4c5ae3e1 * Patch by Jon Loeliger, Kumar Gala 2005-02-08
- Convert the CPM2 based functionality to use new CONFIG_CPM2
    option rather than a myriad of CONFIG_MPC8560-like variants.
    Applies to MPC85xx and MPC8260 boards, includes stxgp3 and sbc8560.
    Eliminates the CONFIG_MPC8560 option entirely.  Distributes the
    new CONFIG_CPM2 option to each 8260 board.
2005-07-23 10:37:35 -05:00

56 lines
1.9 KiB
C

/*
* definitions for MPC8260 I/O Ports
*
* (in addition to those provided in <asm/immap_8260.h>)
*
* Murray.Jensen@cmst.csiro.au, 20-Oct-00
*/
/*
* this structure mirrors the layout of the five port registers in
* the internal memory map - see iop8260_t in <asm/immap_8260.h>
*/
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.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
* of all four MPC8260 I/O ports.
*
* 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];