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-rw-r--r--arch/m32r/platforms/mappi3/io.c405
1 files changed, 405 insertions, 0 deletions
diff --git a/arch/m32r/platforms/mappi3/io.c b/arch/m32r/platforms/mappi3/io.c
new file mode 100644
index 000000000000..1bc3f90fdc53
--- /dev/null
+++ b/arch/m32r/platforms/mappi3/io.c
@@ -0,0 +1,405 @@
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
23extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
24extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
25extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
26extern 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
33static inline void *_port2addr(unsigned long port)
34{
35 return (void *)(port | NONCACHE_OFFSET);
36}
37
38#if defined(CONFIG_IDE)
39static 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)
81static inline void *_port2addr_ne(unsigned long port)
82{
83 return (void *)(port + 0x10000000);
84}
85
86static inline void *_port2addr_usb(unsigned long port)
87{
88 return (void *)(port + NONCACHE_OFFSET + 0x12000000);
89}
90static 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
99static inline unsigned char _ne_inb(void *portp)
100{
101 return (unsigned char) *(volatile unsigned char *)portp;
102}
103
104static inline unsigned short _ne_inw(void *portp)
105{
106 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
107}
108
109static 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
117static inline void _ne_outb(unsigned char b, void *portp)
118{
119 *(volatile unsigned char *)portp = (unsigned char)b;
120}
121
122static inline void _ne_outw(unsigned short w, void *portp)
123{
124 *(volatile unsigned short *)portp = cpu_to_le16(w);
125}
126
127unsigned 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
147unsigned 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
172unsigned 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
184unsigned char _inb_p(unsigned long port)
185{
186 unsigned char v = _inb(port);
187 delay();
188 return (v);
189}
190
191unsigned short _inw_p(unsigned long port)
192{
193 unsigned short v = _inw(port);
194 delay();
195 return (v);
196}
197
198unsigned long _inl_p(unsigned long port)
199{
200 unsigned long v = _inl(port);
201 delay();
202 return (v);
203}
204
205void _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
224void _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
248void _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
258void _outb_p(unsigned char b, unsigned long port)
259{
260 _outb(b, port);
261 delay();
262}
263
264void _outw_p(unsigned short w, unsigned long port)
265{
266 _outw(w, port);
267 delay();
268}
269
270void _outl_p(unsigned long l, unsigned long port)
271{
272 _outl(l, port);
273 delay();
274}
275
276void _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
303void _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
331void _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
341void _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
369void _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
397void _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}
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