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1/*
2 * linux/arch/m32r/platforms/opsput/io.c
3 *
4 * Typical I/O routines for OPSPUT board.
5 *
6 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto, Takeo Takahashi
8 *
9 * This file is subject to the terms and conditions of the GNU General
10 * Public License. See the file "COPYING" in the main directory of this
11 * archive for more details.
12 */
13
14#include <asm/m32r.h>
15#include <asm/page.h>
16#include <asm/io.h>
17#include <asm/byteorder.h>
18
19#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
20#include <linux/types.h>
21
22#define M32R_PCC_IOMAP_SIZE 0x1000
23
24#define M32R_PCC_IOSTART0 0x1000
25#define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
26
27extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
28extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
29extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
30extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
31#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
32
33#define PORT2ADDR(port) _port2addr(port)
34#define PORT2ADDR_USB(port) _port2addr_usb(port)
35
36static inline void *_port2addr(unsigned long port)
37{
38 return (void *)(port | NONCACHE_OFFSET);
39}
40
41#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
42static inline void *__port2addr_ata(unsigned long port)
43{
44 static int dummy_reg;
45
46 switch (port) {
47 case 0x1f0: return (void *)(0x0c002000 | NONCACHE_OFFSET);
48 case 0x1f1: return (void *)(0x0c012800 | NONCACHE_OFFSET);
49 case 0x1f2: return (void *)(0x0c012002 | NONCACHE_OFFSET);
50 case 0x1f3: return (void *)(0x0c012802 | NONCACHE_OFFSET);
51 case 0x1f4: return (void *)(0x0c012004 | NONCACHE_OFFSET);
52 case 0x1f5: return (void *)(0x0c012804 | NONCACHE_OFFSET);
53 case 0x1f6: return (void *)(0x0c012006 | NONCACHE_OFFSET);
54 case 0x1f7: return (void *)(0x0c012806 | NONCACHE_OFFSET);
55 case 0x3f6: return (void *)(0x0c01200e | NONCACHE_OFFSET);
56 default: return (void *)&dummy_reg;
57 }
58}
59#endif
60
61/*
62 * OPSPUT-LAN is located in the extended bus space
63 * from 0x10000000 to 0x13ffffff on physical address.
64 * The base address of LAN controller(LAN91C111) is 0x300.
65 */
66#define LAN_IOSTART (0x300 | NONCACHE_OFFSET)
67#define LAN_IOEND (0x320 | NONCACHE_OFFSET)
68static inline void *_port2addr_ne(unsigned long port)
69{
70 return (void *)(port + 0x10000000);
71}
72static inline void *_port2addr_usb(unsigned long port)
73{
74 return (void *)((port & 0x0f) + NONCACHE_OFFSET + 0x10303000);
75}
76
77static inline void delay(void)
78{
79 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
80}
81
82/*
83 * NIC I/O function
84 */
85
86#define PORT2ADDR_NE(port) _port2addr_ne(port)
87
88static inline unsigned char _ne_inb(void *portp)
89{
90 return *(volatile unsigned char *)portp;
91}
92
93static inline unsigned short _ne_inw(void *portp)
94{
95 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
96}
97
98static inline void _ne_insb(void *portp, void *addr, unsigned long count)
99{
100 unsigned char *buf = (unsigned char *)addr;
101
102 while (count--)
103 *buf++ = _ne_inb(portp);
104}
105
106static inline void _ne_outb(unsigned char b, void *portp)
107{
108 *(volatile unsigned char *)portp = b;
109}
110
111static inline void _ne_outw(unsigned short w, void *portp)
112{
113 *(volatile unsigned short *)portp = cpu_to_le16(w);
114}
115
116unsigned char _inb(unsigned long port)
117{
118 if (port >= LAN_IOSTART && port < LAN_IOEND)
119 return _ne_inb(PORT2ADDR_NE(port));
120
121#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
122 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
123 return *(volatile unsigned char *)__port2addr_ata(port);
124 }
125#endif
126#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
127 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
128 unsigned char b;
129 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
130 return b;
131 } else
132#endif
133
134 return *(volatile unsigned char *)PORT2ADDR(port);
135}
136
137unsigned short _inw(unsigned long port)
138{
139 if (port >= LAN_IOSTART && port < LAN_IOEND)
140 return _ne_inw(PORT2ADDR_NE(port));
141#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
142 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
143 return *(volatile unsigned short *)__port2addr_ata(port);
144 }
145#endif
146#if defined(CONFIG_USB)
147 else if(port >= 0x340 && port < 0x3a0)
148 return *(volatile unsigned short *)PORT2ADDR_USB(port);
149#endif
150#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
151 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
152 unsigned short w;
153 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
154 return w;
155 } else
156#endif
157 return *(volatile unsigned short *)PORT2ADDR(port);
158}
159
160unsigned long _inl(unsigned long port)
161{
162#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
163 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
164 unsigned long l;
165 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
166 return l;
167 } else
168#endif
169 return *(volatile unsigned long *)PORT2ADDR(port);
170}
171
172unsigned char _inb_p(unsigned long port)
173{
174 unsigned char v = _inb(port);
175 delay();
176 return (v);
177}
178
179unsigned short _inw_p(unsigned long port)
180{
181 unsigned short v = _inw(port);
182 delay();
183 return (v);
184}
185
186unsigned long _inl_p(unsigned long port)
187{
188 unsigned long v = _inl(port);
189 delay();
190 return (v);
191}
192
193void _outb(unsigned char b, unsigned long port)
194{
195 if (port >= LAN_IOSTART && port < LAN_IOEND)
196 _ne_outb(b, PORT2ADDR_NE(port));
197 else
198#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
199 if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
200 *(volatile unsigned char *)__port2addr_ata(port) = b;
201 } else
202#endif
203#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
204 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
205 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
206 } else
207#endif
208 *(volatile unsigned char *)PORT2ADDR(port) = b;
209}
210
211void _outw(unsigned short w, unsigned long port)
212{
213 if (port >= LAN_IOSTART && port < LAN_IOEND)
214 _ne_outw(w, PORT2ADDR_NE(port));
215 else
216#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
217 if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
218 *(volatile unsigned short *)__port2addr_ata(port) = w;
219 } else
220#endif
221#if defined(CONFIG_USB)
222 if(port >= 0x340 && port < 0x3a0)
223 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
224 else
225#endif
226#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
227 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
228 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
229 } else
230#endif
231 *(volatile unsigned short *)PORT2ADDR(port) = w;
232}
233
234void _outl(unsigned long l, unsigned long port)
235{
236#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
237 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
238 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
239 } else
240#endif
241 *(volatile unsigned long *)PORT2ADDR(port) = l;
242}
243
244void _outb_p(unsigned char b, unsigned long port)
245{
246 _outb(b, port);
247 delay();
248}
249
250void _outw_p(unsigned short w, unsigned long port)
251{
252 _outw(w, port);
253 delay();
254}
255
256void _outl_p(unsigned long l, unsigned long port)
257{
258 _outl(l, port);
259 delay();
260}
261
262void _insb(unsigned int port, void *addr, unsigned long count)
263{
264 if (port >= LAN_IOSTART && port < LAN_IOEND)
265 _ne_insb(PORT2ADDR_NE(port), addr, count);
266#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
267 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
268 unsigned char *buf = addr;
269 unsigned char *portp = __port2addr_ata(port);
270 while (count--)
271 *buf++ = *(volatile unsigned char *)portp;
272 }
273#endif
274#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
275 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
276 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
277 count, 1);
278 }
279#endif
280 else {
281 unsigned char *buf = addr;
282 unsigned char *portp = PORT2ADDR(port);
283 while (count--)
284 *buf++ = *(volatile unsigned char *)portp;
285 }
286}
287
288void _insw(unsigned int port, void *addr, unsigned long count)
289{
290 unsigned short *buf = addr;
291 unsigned short *portp;
292
293 if (port >= LAN_IOSTART && port < LAN_IOEND) {
294 /*
295 * This portion is only used by smc91111.c to read data
296 * from the DATA_REG. Do not swap the data.
297 */
298 portp = PORT2ADDR_NE(port);
299 while (count--)
300 *buf++ = *(volatile unsigned short *)portp;
301#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
302 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
303 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
304 count, 1);
305#endif
306#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
307 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
308 portp = __port2addr_ata(port);
309 while (count--)
310 *buf++ = *(volatile unsigned short *)portp;
311#endif
312 } else {
313 portp = PORT2ADDR(port);
314 while (count--)
315 *buf++ = *(volatile unsigned short *)portp;
316 }
317}
318
319void _insl(unsigned int port, void *addr, unsigned long count)
320{
321 unsigned long *buf = addr;
322 unsigned long *portp;
323
324 portp = PORT2ADDR(port);
325 while (count--)
326 *buf++ = *(volatile unsigned long *)portp;
327}
328
329void _outsb(unsigned int port, const void *addr, unsigned long count)
330{
331 const unsigned char *buf = addr;
332 unsigned char *portp;
333
334 if (port >= LAN_IOSTART && port < LAN_IOEND) {
335 portp = PORT2ADDR_NE(port);
336 while (count--)
337 _ne_outb(*buf++, portp);
338#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
339 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
340 portp = __port2addr_ata(port);
341 while (count--)
342 *(volatile unsigned char *)portp = *buf++;
343#endif
344#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
345 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
346 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
347 count, 1);
348#endif
349 } else {
350 portp = PORT2ADDR(port);
351 while (count--)
352 *(volatile unsigned char *)portp = *buf++;
353 }
354}
355
356void _outsw(unsigned int port, const void *addr, unsigned long count)
357{
358 const unsigned short *buf = addr;
359 unsigned short *portp;
360
361 if (port >= LAN_IOSTART && port < LAN_IOEND) {
362 /*
363 * This portion is only used by smc91111.c to write data
364 * into the DATA_REG. Do not swap the data.
365 */
366 portp = PORT2ADDR_NE(port);
367 while (count--)
368 *(volatile unsigned short *)portp = *buf++;
369#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
370 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
371 portp = __port2addr_ata(port);
372 while (count--)
373 *(volatile unsigned short *)portp = *buf++;
374#endif
375#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
376 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
377 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
378 count, 1);
379#endif
380 } else {
381 portp = PORT2ADDR(port);
382 while (count--)
383 *(volatile unsigned short *)portp = *buf++;
384 }
385}
386
387void _outsl(unsigned int port, const void *addr, unsigned long count)
388{
389 const unsigned long *buf = addr;
390 unsigned char *portp;
391
392 portp = PORT2ADDR(port);
393 while (count--)
394 *(volatile unsigned long *)portp = *buf++;
395}