1 /* SPDX-License-Identifier: GPL-2.0+ */
2
3 /*
4 * MPC8xx I/O port pin manipulation functions
5 * Roughly based on iopin_8260.h
6 */
7
8 #ifndef _ASM_IOPIN_8XX_H_
9 #define _ASM_IOPIN_8XX_H_
10
11 #include <linux/types.h>
12 #include <asm/immap_8xx.h>
13 #include <asm/io.h>
14
15 #ifdef __KERNEL__
16
17 typedef struct {
18 u_char port:2; /* port number (A=0, B=1, C=2, D=3) */
19 u_char pin:5; /* port pin (0-31) */
20 u_char flag:1; /* for whatever */
21 } iopin_t;
22
23 #define IOPIN_PORTA 0
24 #define IOPIN_PORTB 1
25 #define IOPIN_PORTC 2
26 #define IOPIN_PORTD 3
27
iopin_set_high(iopin_t * iopin)28 static inline void iopin_set_high(iopin_t *iopin)
29 {
30 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
31
32 if (iopin->port == IOPIN_PORTA) {
33 ushort __iomem *datp = &immap->im_ioport.iop_padat;
34
35 setbits_be16(datp, 1 << (15 - iopin->pin));
36 } else if (iopin->port == IOPIN_PORTB) {
37 uint __iomem *datp = &immap->im_cpm.cp_pbdat;
38
39 setbits_be32(datp, 1 << (31 - iopin->pin));
40 } else if (iopin->port == IOPIN_PORTC) {
41 ushort __iomem *datp = &immap->im_ioport.iop_pcdat;
42
43 setbits_be16(datp, 1 << (15 - iopin->pin));
44 } else if (iopin->port == IOPIN_PORTD) {
45 ushort __iomem *datp = &immap->im_ioport.iop_pddat;
46
47 setbits_be16(datp, 1 << (15 - iopin->pin));
48 }
49 }
50
iopin_set_low(iopin_t * iopin)51 static inline void iopin_set_low(iopin_t *iopin)
52 {
53 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
54
55 if (iopin->port == IOPIN_PORTA) {
56 ushort __iomem *datp = &immap->im_ioport.iop_padat;
57
58 clrbits_be16(datp, 1 << (15 - iopin->pin));
59 } else if (iopin->port == IOPIN_PORTB) {
60 uint __iomem *datp = &immap->im_cpm.cp_pbdat;
61
62 clrbits_be32(datp, 1 << (31 - iopin->pin));
63 } else if (iopin->port == IOPIN_PORTC) {
64 ushort __iomem *datp = &immap->im_ioport.iop_pcdat;
65
66 clrbits_be16(datp, 1 << (15 - iopin->pin));
67 } else if (iopin->port == IOPIN_PORTD) {
68 ushort __iomem *datp = &immap->im_ioport.iop_pddat;
69
70 clrbits_be16(datp, 1 << (15 - iopin->pin));
71 }
72 }
73
iopin_is_high(iopin_t * iopin)74 static inline uint iopin_is_high(iopin_t *iopin)
75 {
76 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
77
78 if (iopin->port == IOPIN_PORTA) {
79 ushort __iomem *datp = &immap->im_ioport.iop_padat;
80
81 return (in_be16(datp) >> (15 - iopin->pin)) & 1;
82 } else if (iopin->port == IOPIN_PORTB) {
83 uint __iomem *datp = &immap->im_cpm.cp_pbdat;
84
85 return (in_be32(datp) >> (31 - iopin->pin)) & 1;
86 } else if (iopin->port == IOPIN_PORTC) {
87 ushort __iomem *datp = &immap->im_ioport.iop_pcdat;
88
89 return (in_be16(datp) >> (15 - iopin->pin)) & 1;
90 } else if (iopin->port == IOPIN_PORTD) {
91 ushort __iomem *datp = &immap->im_ioport.iop_pddat;
92
93 return (in_be16(datp) >> (15 - iopin->pin)) & 1;
94 }
95 return 0;
96 }
97
iopin_is_low(iopin_t * iopin)98 static inline uint iopin_is_low(iopin_t *iopin)
99 {
100 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
101
102 if (iopin->port == IOPIN_PORTA) {
103 ushort __iomem *datp = &immap->im_ioport.iop_padat;
104
105 return ((in_be16(datp) >> (15 - iopin->pin)) & 1) ^ 1;
106 } else if (iopin->port == IOPIN_PORTB) {
107 uint __iomem *datp = &immap->im_cpm.cp_pbdat;
108
109 return ((in_be32(datp) >> (31 - iopin->pin)) & 1) ^ 1;
110 } else if (iopin->port == IOPIN_PORTC) {
111 ushort __iomem *datp = &immap->im_ioport.iop_pcdat;
112
113 return ((in_be16(datp) >> (15 - iopin->pin)) & 1) ^ 1;
114 } else if (iopin->port == IOPIN_PORTD) {
115 ushort __iomem *datp = &immap->im_ioport.iop_pddat;
116
117 return ((in_be16(datp) >> (15 - iopin->pin)) & 1) ^ 1;
118 }
119 return 0;
120 }
121
iopin_set_out(iopin_t * iopin)122 static inline void iopin_set_out(iopin_t *iopin)
123 {
124 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
125
126 if (iopin->port == IOPIN_PORTA) {
127 ushort __iomem *dirp = &immap->im_ioport.iop_padir;
128
129 setbits_be16(dirp, 1 << (15 - iopin->pin));
130 } else if (iopin->port == IOPIN_PORTB) {
131 uint __iomem *dirp = &immap->im_cpm.cp_pbdir;
132
133 setbits_be32(dirp, 1 << (31 - iopin->pin));
134 } else if (iopin->port == IOPIN_PORTC) {
135 ushort __iomem *dirp = &immap->im_ioport.iop_pcdir;
136
137 setbits_be16(dirp, 1 << (15 - iopin->pin));
138 } else if (iopin->port == IOPIN_PORTD) {
139 ushort __iomem *dirp = &immap->im_ioport.iop_pddir;
140
141 setbits_be16(dirp, 1 << (15 - iopin->pin));
142 }
143 }
144
iopin_set_in(iopin_t * iopin)145 static inline void iopin_set_in(iopin_t *iopin)
146 {
147 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
148
149 if (iopin->port == IOPIN_PORTA) {
150 ushort __iomem *dirp = &immap->im_ioport.iop_padir;
151
152 clrbits_be16(dirp, 1 << (15 - iopin->pin));
153 } else if (iopin->port == IOPIN_PORTB) {
154 uint __iomem *dirp = &immap->im_cpm.cp_pbdir;
155
156 clrbits_be32(dirp, 1 << (31 - iopin->pin));
157 } else if (iopin->port == IOPIN_PORTC) {
158 ushort __iomem *dirp = &immap->im_ioport.iop_pcdir;
159
160 clrbits_be16(dirp, 1 << (15 - iopin->pin));
161 } else if (iopin->port == IOPIN_PORTD) {
162 ushort __iomem *dirp = &immap->im_ioport.iop_pddir;
163
164 clrbits_be16(dirp, 1 << (15 - iopin->pin));
165 }
166 }
167
iopin_is_out(iopin_t * iopin)168 static inline uint iopin_is_out(iopin_t *iopin)
169 {
170 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
171
172 if (iopin->port == IOPIN_PORTA) {
173 ushort __iomem *dirp = &immap->im_ioport.iop_padir;
174
175 return (in_be16(dirp) >> (15 - iopin->pin)) & 1;
176 } else if (iopin->port == IOPIN_PORTB) {
177 uint __iomem *dirp = &immap->im_cpm.cp_pbdir;
178
179 return (in_be32(dirp) >> (31 - iopin->pin)) & 1;
180 } else if (iopin->port == IOPIN_PORTC) {
181 ushort __iomem *dirp = &immap->im_ioport.iop_pcdir;
182
183 return (in_be16(dirp) >> (15 - iopin->pin)) & 1;
184 } else if (iopin->port == IOPIN_PORTD) {
185 ushort __iomem *dirp = &immap->im_ioport.iop_pddir;
186
187 return (in_be16(dirp) >> (15 - iopin->pin)) & 1;
188 }
189 return 0;
190 }
191
iopin_is_in(iopin_t * iopin)192 static inline uint iopin_is_in(iopin_t *iopin)
193 {
194 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
195
196 if (iopin->port == IOPIN_PORTA) {
197 ushort __iomem *dirp = &immap->im_ioport.iop_padir;
198
199 return ((in_be16(dirp) >> (15 - iopin->pin)) & 1) ^ 1;
200 } else if (iopin->port == IOPIN_PORTB) {
201 uint __iomem *dirp = &immap->im_cpm.cp_pbdir;
202
203 return ((in_be32(dirp) >> (31 - iopin->pin)) & 1) ^ 1;
204 } else if (iopin->port == IOPIN_PORTC) {
205 ushort __iomem *dirp = &immap->im_ioport.iop_pcdir;
206
207 return ((in_be16(dirp) >> (15 - iopin->pin)) & 1) ^ 1;
208 } else if (iopin->port == IOPIN_PORTD) {
209 ushort __iomem *dirp = &immap->im_ioport.iop_pddir;
210
211 return ((in_be16(dirp) >> (15 - iopin->pin)) & 1) ^ 1;
212 }
213 return 0;
214 }
215
iopin_set_odr(iopin_t * iopin)216 static inline void iopin_set_odr(iopin_t *iopin)
217 {
218 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
219
220 if (iopin->port == IOPIN_PORTA) {
221 ushort __iomem *odrp = &immap->im_ioport.iop_paodr;
222
223 setbits_be16(odrp, 1 << (15 - iopin->pin));
224 } else if (iopin->port == IOPIN_PORTB) {
225 ushort __iomem *odrp = &immap->im_cpm.cp_pbodr;
226
227 setbits_be16(odrp, 1 << (31 - iopin->pin));
228 }
229 }
230
iopin_set_act(iopin_t * iopin)231 static inline void iopin_set_act(iopin_t *iopin)
232 {
233 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
234
235 if (iopin->port == IOPIN_PORTA) {
236 ushort __iomem *odrp = &immap->im_ioport.iop_paodr;
237
238 clrbits_be16(odrp, 1 << (15 - iopin->pin));
239 } else if (iopin->port == IOPIN_PORTB) {
240 ushort __iomem *odrp = &immap->im_cpm.cp_pbodr;
241
242 clrbits_be16(odrp, 1 << (31 - iopin->pin));
243 }
244 }
245
iopin_is_odr(iopin_t * iopin)246 static inline uint iopin_is_odr(iopin_t *iopin)
247 {
248 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
249
250 if (iopin->port == IOPIN_PORTA) {
251 ushort __iomem *odrp = &immap->im_ioport.iop_paodr;
252
253 return (in_be16(odrp) >> (15 - iopin->pin)) & 1;
254 } else if (iopin->port == IOPIN_PORTB) {
255 ushort __iomem *odrp = &immap->im_cpm.cp_pbodr;
256
257 return (in_be16(odrp) >> (31 - iopin->pin)) & 1;
258 }
259 return 0;
260 }
261
iopin_is_act(iopin_t * iopin)262 static inline uint iopin_is_act(iopin_t *iopin)
263 {
264 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
265
266 if (iopin->port == IOPIN_PORTA) {
267 ushort __iomem *odrp = &immap->im_ioport.iop_paodr;
268
269 return ((in_be16(odrp) >> (15 - iopin->pin)) & 1) ^ 1;
270 } else if (iopin->port == IOPIN_PORTB) {
271 ushort __iomem *odrp = &immap->im_cpm.cp_pbodr;
272
273 return ((in_be16(odrp) >> (31 - iopin->pin)) & 1) ^ 1;
274 }
275 return 0;
276 }
277
iopin_set_ded(iopin_t * iopin)278 static inline void iopin_set_ded(iopin_t *iopin)
279 {
280 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
281
282 if (iopin->port == IOPIN_PORTA) {
283 ushort __iomem *parp = &immap->im_ioport.iop_papar;
284
285 setbits_be16(parp, 1 << (15 - iopin->pin));
286 } else if (iopin->port == IOPIN_PORTB) {
287 uint __iomem *parp = &immap->im_cpm.cp_pbpar;
288
289 setbits_be32(parp, 1 << (31 - iopin->pin));
290 } else if (iopin->port == IOPIN_PORTC) {
291 ushort __iomem *parp = &immap->im_ioport.iop_pcpar;
292
293 setbits_be16(parp, 1 << (15 - iopin->pin));
294 } else if (iopin->port == IOPIN_PORTD) {
295 ushort __iomem *parp = &immap->im_ioport.iop_pdpar;
296
297 setbits_be16(parp, 1 << (15 - iopin->pin));
298 }
299 }
300
iopin_set_gen(iopin_t * iopin)301 static inline void iopin_set_gen(iopin_t *iopin)
302 {
303 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
304
305 if (iopin->port == IOPIN_PORTA) {
306 ushort __iomem *parp = &immap->im_ioport.iop_papar;
307
308 clrbits_be16(parp, 1 << (15 - iopin->pin));
309 } else if (iopin->port == IOPIN_PORTB) {
310 uint __iomem *parp = &immap->im_cpm.cp_pbpar;
311
312 clrbits_be32(parp, 1 << (31 - iopin->pin));
313 } else if (iopin->port == IOPIN_PORTC) {
314 ushort __iomem *parp = &immap->im_ioport.iop_pcpar;
315
316 clrbits_be16(parp, 1 << (15 - iopin->pin));
317 } else if (iopin->port == IOPIN_PORTD) {
318 ushort __iomem *parp = &immap->im_ioport.iop_pdpar;
319
320 clrbits_be16(parp, 1 << (15 - iopin->pin));
321 }
322 }
323
iopin_is_ded(iopin_t * iopin)324 static inline uint iopin_is_ded(iopin_t *iopin)
325 {
326 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
327
328 if (iopin->port == IOPIN_PORTA) {
329 ushort __iomem *parp = &immap->im_ioport.iop_papar;
330
331 return (in_be16(parp) >> (15 - iopin->pin)) & 1;
332 } else if (iopin->port == IOPIN_PORTB) {
333 uint __iomem *parp = &immap->im_cpm.cp_pbpar;
334
335 return (in_be32(parp) >> (31 - iopin->pin)) & 1;
336 } else if (iopin->port == IOPIN_PORTC) {
337 ushort __iomem *parp = &immap->im_ioport.iop_pcpar;
338
339 return (in_be16(parp) >> (15 - iopin->pin)) & 1;
340 } else if (iopin->port == IOPIN_PORTD) {
341 ushort __iomem *parp = &immap->im_ioport.iop_pdpar;
342
343 return (in_be16(parp) >> (15 - iopin->pin)) & 1;
344 }
345 return 0;
346 }
347
iopin_is_gen(iopin_t * iopin)348 static inline uint iopin_is_gen(iopin_t *iopin)
349 {
350 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
351
352 if (iopin->port == IOPIN_PORTA) {
353 ushort __iomem *parp = &immap->im_ioport.iop_papar;
354
355 return ((in_be16(parp) >> (15 - iopin->pin)) & 1) ^ 1;
356 } else if (iopin->port == IOPIN_PORTB) {
357 uint __iomem *parp = &immap->im_cpm.cp_pbpar;
358
359 return ((in_be32(parp) >> (31 - iopin->pin)) & 1) ^ 1;
360 } else if (iopin->port == IOPIN_PORTC) {
361 ushort __iomem *parp = &immap->im_ioport.iop_pcpar;
362
363 return ((in_be16(parp) >> (15 - iopin->pin)) & 1) ^ 1;
364 } else if (iopin->port == IOPIN_PORTD) {
365 ushort __iomem *parp = &immap->im_ioport.iop_pdpar;
366
367 return ((in_be16(parp) >> (15 - iopin->pin)) & 1) ^ 1;
368 }
369 return 0;
370 }
371
iopin_set_opt2(iopin_t * iopin)372 static inline void iopin_set_opt2(iopin_t *iopin)
373 {
374 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
375
376 if (iopin->port == IOPIN_PORTC) {
377 ushort __iomem *sorp = &immap->im_ioport.iop_pcso;
378
379 setbits_be16(sorp, 1 << (15 - iopin->pin));
380 }
381 }
382
iopin_set_opt1(iopin_t * iopin)383 static inline void iopin_set_opt1(iopin_t *iopin)
384 {
385 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
386
387 if (iopin->port == IOPIN_PORTC) {
388 ushort __iomem *sorp = &immap->im_ioport.iop_pcso;
389
390 clrbits_be16(sorp, 1 << (15 - iopin->pin));
391 }
392 }
393
iopin_is_opt2(iopin_t * iopin)394 static inline uint iopin_is_opt2(iopin_t *iopin)
395 {
396 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
397
398 if (iopin->port == IOPIN_PORTC) {
399 ushort __iomem *sorp = &immap->im_ioport.iop_pcso;
400
401 return (in_be16(sorp) >> (15 - iopin->pin)) & 1;
402 }
403 return 0;
404 }
405
iopin_is_opt1(iopin_t * iopin)406 static inline uint iopin_is_opt1(iopin_t *iopin)
407 {
408 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
409
410 if (iopin->port == IOPIN_PORTC) {
411 ushort __iomem *sorp = &immap->im_ioport.iop_pcso;
412
413 return ((in_be16(sorp) >> (15 - iopin->pin)) & 1) ^ 1;
414 }
415 return 0;
416 }
417
iopin_set_falledge(iopin_t * iopin)418 static inline void iopin_set_falledge(iopin_t *iopin)
419 {
420 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
421
422 if (iopin->port == IOPIN_PORTC) {
423 ushort __iomem *intp = &immap->im_ioport.iop_pcint;
424
425 setbits_be16(intp, 1 << (15 - iopin->pin));
426 }
427 }
428
iopin_set_anyedge(iopin_t * iopin)429 static inline void iopin_set_anyedge(iopin_t *iopin)
430 {
431 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
432
433 if (iopin->port == IOPIN_PORTC) {
434 ushort __iomem *intp = &immap->im_ioport.iop_pcint;
435
436 clrbits_be16(intp, 1 << (15 - iopin->pin));
437 }
438 }
439
iopin_is_falledge(iopin_t * iopin)440 static inline uint iopin_is_falledge(iopin_t *iopin)
441 {
442 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
443
444 if (iopin->port == IOPIN_PORTC) {
445 ushort __iomem *intp = &immap->im_ioport.iop_pcint;
446
447 return (in_be16(intp) >> (15 - iopin->pin)) & 1;
448 }
449 return 0;
450 }
451
iopin_is_anyedge(iopin_t * iopin)452 static inline uint iopin_is_anyedge(iopin_t *iopin)
453 {
454 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
455
456 if (iopin->port == IOPIN_PORTC) {
457 ushort __iomem *intp = &immap->im_ioport.iop_pcint;
458
459 return ((in_be16(intp) >> (15 - iopin->pin)) & 1) ^ 1;
460 }
461 return 0;
462 }
463
464 #endif /* __KERNEL__ */
465
466 #endif /* _ASM_IOPIN_8XX_H_ */
467