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0f89ba43 WD |
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]; |