1 /*
2 * linux/arch/m32r/platforms/mappi3/io.c
3 *
4 * Typical I/O routines for Mappi3 board.
5 *
6 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto, Mamoru Sakugawa
8 */
9
10 #include <asm/m32r.h>
11 #include <asm/page.h>
12 #include <asm/io.h>
13 #include <asm/byteorder.h>
14
15 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
16 #include <linux/types.h>
17
18 #define M32R_PCC_IOMAP_SIZE 0x1000
19
20 #define M32R_PCC_IOSTART0 0x1000
21 #define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
22
23 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
24 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
25 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
26 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
27 #endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
28
29 #define PORT2ADDR(port) _port2addr(port)
30 #define PORT2ADDR_NE(port) _port2addr_ne(port)
31 #define PORT2ADDR_USB(port) _port2addr_usb(port)
32
_port2addr(unsigned long port)33 static inline void *_port2addr(unsigned long port)
34 {
35 return (void *)(port | NONCACHE_OFFSET);
36 }
37
38 #if defined(CONFIG_IDE)
__port2addr_ata(unsigned long port)39 static inline void *__port2addr_ata(unsigned long port)
40 {
41 static int dummy_reg;
42
43 switch (port) {
44 /* IDE0 CF */
45 case 0x1f0: return (void *)(0x14002000 | NONCACHE_OFFSET);
46 case 0x1f1: return (void *)(0x14012800 | NONCACHE_OFFSET);
47 case 0x1f2: return (void *)(0x14012002 | NONCACHE_OFFSET);
48 case 0x1f3: return (void *)(0x14012802 | NONCACHE_OFFSET);
49 case 0x1f4: return (void *)(0x14012004 | NONCACHE_OFFSET);
50 case 0x1f5: return (void *)(0x14012804 | NONCACHE_OFFSET);
51 case 0x1f6: return (void *)(0x14012006 | NONCACHE_OFFSET);
52 case 0x1f7: return (void *)(0x14012806 | NONCACHE_OFFSET);
53 case 0x3f6: return (void *)(0x1401200e | NONCACHE_OFFSET);
54 /* IDE1 IDE */
55 case 0x170: /* Data 16bit */
56 return (void *)(0x14810000 | NONCACHE_OFFSET);
57 case 0x171: /* Features / Error */
58 return (void *)(0x14810002 | NONCACHE_OFFSET);
59 case 0x172: /* Sector count */
60 return (void *)(0x14810004 | NONCACHE_OFFSET);
61 case 0x173: /* Sector number */
62 return (void *)(0x14810006 | NONCACHE_OFFSET);
63 case 0x174: /* Cylinder low */
64 return (void *)(0x14810008 | NONCACHE_OFFSET);
65 case 0x175: /* Cylinder high */
66 return (void *)(0x1481000a | NONCACHE_OFFSET);
67 case 0x176: /* Device head */
68 return (void *)(0x1481000c | NONCACHE_OFFSET);
69 case 0x177: /* Command */
70 return (void *)(0x1481000e | NONCACHE_OFFSET);
71 case 0x376: /* Device control / Alt status */
72 return (void *)(0x1480800c | NONCACHE_OFFSET);
73
74 default: return (void *)&dummy_reg;
75 }
76 }
77 #endif
78
79 #define LAN_IOSTART (0x300 | NONCACHE_OFFSET)
80 #define LAN_IOEND (0x320 | NONCACHE_OFFSET)
_port2addr_ne(unsigned long port)81 static inline void *_port2addr_ne(unsigned long port)
82 {
83 return (void *)(port + 0x10000000);
84 }
85
_port2addr_usb(unsigned long port)86 static inline void *_port2addr_usb(unsigned long port)
87 {
88 return (void *)(port + NONCACHE_OFFSET + 0x12000000);
89 }
delay(void)90 static inline void delay(void)
91 {
92 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
93 }
94
95 /*
96 * NIC I/O function
97 */
98
_ne_inb(void * portp)99 static inline unsigned char _ne_inb(void *portp)
100 {
101 return (unsigned char) *(volatile unsigned char *)portp;
102 }
103
_ne_inw(void * portp)104 static inline unsigned short _ne_inw(void *portp)
105 {
106 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
107 }
108
_ne_insb(void * portp,void * addr,unsigned long count)109 static inline void _ne_insb(void *portp, void * addr, unsigned long count)
110 {
111 unsigned char *buf = addr;
112
113 while (count--)
114 *buf++ = *(volatile unsigned char *)portp;
115 }
116
_ne_outb(unsigned char b,void * portp)117 static inline void _ne_outb(unsigned char b, void *portp)
118 {
119 *(volatile unsigned char *)portp = (unsigned char)b;
120 }
121
_ne_outw(unsigned short w,void * portp)122 static inline void _ne_outw(unsigned short w, void *portp)
123 {
124 *(volatile unsigned short *)portp = cpu_to_le16(w);
125 }
126
_inb(unsigned long port)127 unsigned char _inb(unsigned long port)
128 {
129 if (port >= LAN_IOSTART && port < LAN_IOEND)
130 return _ne_inb(PORT2ADDR_NE(port));
131 #if defined(CONFIG_IDE)
132 else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
133 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
134 return *(volatile unsigned char *)__port2addr_ata(port);
135 }
136 #endif
137 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
138 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
139 unsigned char b;
140 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
141 return b;
142 } else
143 #endif
144 return *(volatile unsigned char *)PORT2ADDR(port);
145 }
146
_inw(unsigned long port)147 unsigned short _inw(unsigned long port)
148 {
149 if (port >= LAN_IOSTART && port < LAN_IOEND)
150 return _ne_inw(PORT2ADDR_NE(port));
151 #if defined(CONFIG_IDE)
152 else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
153 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
154 return *(volatile unsigned short *)__port2addr_ata(port);
155 }
156 #endif
157 #if defined(CONFIG_USB)
158 else if (port >= 0x340 && port < 0x3a0)
159 return *(volatile unsigned short *)PORT2ADDR_USB(port);
160 #endif
161
162 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
163 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
164 unsigned short w;
165 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
166 return w;
167 } else
168 #endif
169 return *(volatile unsigned short *)PORT2ADDR(port);
170 }
171
_inl(unsigned long port)172 unsigned long _inl(unsigned long port)
173 {
174 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
175 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
176 unsigned long l;
177 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
178 return l;
179 } else
180 #endif
181 return *(volatile unsigned long *)PORT2ADDR(port);
182 }
183
_inb_p(unsigned long port)184 unsigned char _inb_p(unsigned long port)
185 {
186 unsigned char v = _inb(port);
187 delay();
188 return (v);
189 }
190
_inw_p(unsigned long port)191 unsigned short _inw_p(unsigned long port)
192 {
193 unsigned short v = _inw(port);
194 delay();
195 return (v);
196 }
197
_inl_p(unsigned long port)198 unsigned long _inl_p(unsigned long port)
199 {
200 unsigned long v = _inl(port);
201 delay();
202 return (v);
203 }
204
_outb(unsigned char b,unsigned long port)205 void _outb(unsigned char b, unsigned long port)
206 {
207 if (port >= LAN_IOSTART && port < LAN_IOEND)
208 _ne_outb(b, PORT2ADDR_NE(port));
209 else
210 #if defined(CONFIG_IDE)
211 if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
212 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
213 *(volatile unsigned char *)__port2addr_ata(port) = b;
214 } else
215 #endif
216 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
217 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
218 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
219 } else
220 #endif
221 *(volatile unsigned char *)PORT2ADDR(port) = b;
222 }
223
_outw(unsigned short w,unsigned long port)224 void _outw(unsigned short w, unsigned long port)
225 {
226 if (port >= LAN_IOSTART && port < LAN_IOEND)
227 _ne_outw(w, PORT2ADDR_NE(port));
228 else
229 #if defined(CONFIG_IDE)
230 if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
231 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
232 *(volatile unsigned short *)__port2addr_ata(port) = w;
233 } else
234 #endif
235 #if defined(CONFIG_USB)
236 if (port >= 0x340 && port < 0x3a0)
237 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
238 else
239 #endif
240 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
241 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
242 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
243 } else
244 #endif
245 *(volatile unsigned short *)PORT2ADDR(port) = w;
246 }
247
_outl(unsigned long l,unsigned long port)248 void _outl(unsigned long l, unsigned long port)
249 {
250 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
251 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
252 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
253 } else
254 #endif
255 *(volatile unsigned long *)PORT2ADDR(port) = l;
256 }
257
_outb_p(unsigned char b,unsigned long port)258 void _outb_p(unsigned char b, unsigned long port)
259 {
260 _outb(b, port);
261 delay();
262 }
263
_outw_p(unsigned short w,unsigned long port)264 void _outw_p(unsigned short w, unsigned long port)
265 {
266 _outw(w, port);
267 delay();
268 }
269
_outl_p(unsigned long l,unsigned long port)270 void _outl_p(unsigned long l, unsigned long port)
271 {
272 _outl(l, port);
273 delay();
274 }
275
_insb(unsigned int port,void * addr,unsigned long count)276 void _insb(unsigned int port, void * addr, unsigned long count)
277 {
278 if (port >= LAN_IOSTART && port < LAN_IOEND)
279 _ne_insb(PORT2ADDR_NE(port), addr, count);
280 #if defined(CONFIG_IDE)
281 else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
282 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
283 unsigned char *buf = addr;
284 unsigned char *portp = __port2addr_ata(port);
285 while (count--)
286 *buf++ = *(volatile unsigned char *)portp;
287 }
288 #endif
289 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
290 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
291 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
292 count, 1);
293 }
294 #endif
295 else {
296 unsigned char *buf = addr;
297 unsigned char *portp = PORT2ADDR(port);
298 while (count--)
299 *buf++ = *(volatile unsigned char *)portp;
300 }
301 }
302
_insw(unsigned int port,void * addr,unsigned long count)303 void _insw(unsigned int port, void * addr, unsigned long count)
304 {
305 unsigned short *buf = addr;
306 unsigned short *portp;
307
308 if (port >= LAN_IOSTART && port < LAN_IOEND) {
309 portp = PORT2ADDR_NE(port);
310 while (count--)
311 *buf++ = *(volatile unsigned short *)portp;
312 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
313 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
314 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
315 count, 1);
316 #endif
317 #if defined(CONFIG_IDE)
318 } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
319 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
320 portp = __port2addr_ata(port);
321 while (count--)
322 *buf++ = *(volatile unsigned short *)portp;
323 #endif
324 } else {
325 portp = PORT2ADDR(port);
326 while (count--)
327 *buf++ = *(volatile unsigned short *)portp;
328 }
329 }
330
_insl(unsigned int port,void * addr,unsigned long count)331 void _insl(unsigned int port, void * addr, unsigned long count)
332 {
333 unsigned long *buf = addr;
334 unsigned long *portp;
335
336 portp = PORT2ADDR(port);
337 while (count--)
338 *buf++ = *(volatile unsigned long *)portp;
339 }
340
_outsb(unsigned int port,const void * addr,unsigned long count)341 void _outsb(unsigned int port, const void * addr, unsigned long count)
342 {
343 const unsigned char *buf = addr;
344 unsigned char *portp;
345
346 if (port >= LAN_IOSTART && port < LAN_IOEND) {
347 portp = PORT2ADDR_NE(port);
348 while (count--)
349 _ne_outb(*buf++, portp);
350 #if defined(CONFIG_IDE)
351 } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
352 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
353 portp = __port2addr_ata(port);
354 while (count--)
355 *(volatile unsigned char *)portp = *buf++;
356 #endif
357 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
358 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
359 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
360 count, 1);
361 #endif
362 } else {
363 portp = PORT2ADDR(port);
364 while (count--)
365 *(volatile unsigned char *)portp = *buf++;
366 }
367 }
368
_outsw(unsigned int port,const void * addr,unsigned long count)369 void _outsw(unsigned int port, const void * addr, unsigned long count)
370 {
371 const unsigned short *buf = addr;
372 unsigned short *portp;
373
374 if (port >= LAN_IOSTART && port < LAN_IOEND) {
375 portp = PORT2ADDR_NE(port);
376 while (count--)
377 *(volatile unsigned short *)portp = *buf++;
378 #if defined(CONFIG_IDE)
379 } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
380 ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
381 portp = __port2addr_ata(port);
382 while (count--)
383 *(volatile unsigned short *)portp = *buf++;
384 #endif
385 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
386 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
387 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
388 count, 1);
389 #endif
390 } else {
391 portp = PORT2ADDR(port);
392 while (count--)
393 *(volatile unsigned short *)portp = *buf++;
394 }
395 }
396
_outsl(unsigned int port,const void * addr,unsigned long count)397 void _outsl(unsigned int port, const void * addr, unsigned long count)
398 {
399 const unsigned long *buf = addr;
400 unsigned char *portp;
401
402 portp = PORT2ADDR(port);
403 while (count--)
404 *(volatile unsigned long *)portp = *buf++;
405 }
406