| wdenk | 0f89ba4 | 2000-11-16 20:23:11 +0000 | [diff] [blame^] | 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 | */ |
| 13 | typedef 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 | #define ioport_addr(im, idx) (ioport_t *)((uint)&(im)->im_ioport + ((idx)*0x20)) |
| 29 | |
| 30 | /* |
| 31 | * this structure provides configuration |
| 32 | * information for one port pin |
| 33 | */ |
| 34 | typedef struct { |
| 35 | unsigned char conf:1; /* if 1, configure this port */ |
| 36 | unsigned char ppar:1; /* Port Pin Assignment Register (35-4) */ |
| 37 | unsigned char psor:1; /* Port Special Options Register (35-2) */ |
| 38 | unsigned char pdir:1; /* Port Data Direction Register (35-3) */ |
| 39 | unsigned char podr:1; /* Port Open Drain Register (35-2) */ |
| 40 | unsigned char pdat:1; /* Port Data Register (35-2) */ |
| 41 | } iop_conf_t; |
| 42 | |
| 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]; |