aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m32r/kernel/io_mappi3.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m32r/kernel/io_mappi3.c')
-rw-r--r--arch/m32r/kernel/io_mappi3.c378
1 files changed, 378 insertions, 0 deletions
diff --git a/arch/m32r/kernel/io_mappi3.c b/arch/m32r/kernel/io_mappi3.c
new file mode 100644
index 000000000000..c80bde657854
--- /dev/null
+++ b/arch/m32r/kernel/io_mappi3.c
@@ -0,0 +1,378 @@
1/*
2 * linux/arch/m32r/kernel/io_mappi3.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 <linux/config.h>
11#include <asm/m32r.h>
12#include <asm/page.h>
13#include <asm/io.h>
14#include <asm/byteorder.h>
15
16#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
17#include <linux/types.h>
18
19#define M32R_PCC_IOMAP_SIZE 0x1000
20
21#define M32R_PCC_IOSTART0 0x1000
22#define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
23
24extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
25extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
26extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
27extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
28#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
29
30#define PORT2ADDR(port) _port2addr(port)
31#define PORT2ADDR_NE(port) _port2addr_ne(port)
32#define PORT2ADDR_USB(port) _port2addr_usb(port)
33
34static inline void *_port2addr(unsigned long port)
35{
36 return (void *)(port + NONCACHE_OFFSET);
37}
38
39#define LAN_IOSTART 0x300
40#define LAN_IOEND 0x320
41
42#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
43static inline void *__port2addr_ata(unsigned long port)
44{
45 static int dummy_reg;
46
47 switch (port) {
48 case 0x1f0: return (void *)0xb4002000;
49 case 0x1f1: return (void *)0xb4012800;
50 case 0x1f2: return (void *)0xb4012002;
51 case 0x1f3: return (void *)0xb4012802;
52 case 0x1f4: return (void *)0xb4012004;
53 case 0x1f5: return (void *)0xb4012804;
54 case 0x1f6: return (void *)0xb4012006;
55 case 0x1f7: return (void *)0xb4012806;
56 case 0x3f6: return (void *)0xb401200e;
57 default: return (void *)&dummy_reg;
58 }
59}
60#endif
61
62static inline void *_port2addr_ne(unsigned long port)
63{
64 return (void *)(port + NONCACHE_OFFSET + 0x10000000);
65}
66
67static inline void *_port2addr_usb(unsigned long port)
68{
69 return (void *)(port + NONCACHE_OFFSET + 0x12000000);
70}
71static inline void delay(void)
72{
73 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
74}
75
76/*
77 * NIC I/O function
78 */
79
80static inline unsigned char _ne_inb(void *portp)
81{
82 return (unsigned char) *(volatile unsigned char *)portp;
83}
84
85static inline unsigned short _ne_inw(void *portp)
86{
87 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
88}
89
90static inline void _ne_insb(void *portp, void * addr, unsigned long count)
91{
92 unsigned char *buf = addr;
93
94 while (count--)
95 *buf++ = *(volatile unsigned char *)portp;
96}
97
98static inline void _ne_outb(unsigned char b, void *portp)
99{
100 *(volatile unsigned char *)portp = (unsigned char)b;
101}
102
103static inline void _ne_outw(unsigned short w, void *portp)
104{
105 *(volatile unsigned short *)portp = cpu_to_le16(w);
106}
107
108unsigned char _inb(unsigned long port)
109{
110 if (port >= LAN_IOSTART && port < LAN_IOEND)
111 return _ne_inb(PORT2ADDR_NE(port));
112#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
113 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
114 return *(volatile unsigned char *)__port2addr_ata(port);
115 }
116#endif
117#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
118 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
119 unsigned char b;
120 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
121 return b;
122 } else
123#endif
124 return *(volatile unsigned char *)PORT2ADDR(port);
125}
126
127unsigned short _inw(unsigned long port)
128{
129 if (port >= LAN_IOSTART && port < LAN_IOEND)
130 return _ne_inw(PORT2ADDR_NE(port));
131#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
132 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
133 return *(volatile unsigned short *)__port2addr_ata(port);
134 }
135#endif
136#if defined(CONFIG_USB)
137 else if (port >= 0x340 && port < 0x3a0)
138 return *(volatile unsigned short *)PORT2ADDR_USB(port);
139#endif
140
141#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
142 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
143 unsigned short w;
144 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
145 return w;
146 } else
147#endif
148 return *(volatile unsigned short *)PORT2ADDR(port);
149}
150
151unsigned long _inl(unsigned long port)
152{
153#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
154 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
155 unsigned long l;
156 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
157 return l;
158 } else
159#endif
160 return *(volatile unsigned long *)PORT2ADDR(port);
161}
162
163unsigned char _inb_p(unsigned long port)
164{
165 unsigned char v = _inb(port);
166 delay();
167 return (v);
168}
169
170unsigned short _inw_p(unsigned long port)
171{
172 unsigned short v = _inw(port);
173 delay();
174 return (v);
175}
176
177unsigned long _inl_p(unsigned long port)
178{
179 unsigned long v = _inl(port);
180 delay();
181 return (v);
182}
183
184void _outb(unsigned char b, unsigned long port)
185{
186 if (port >= LAN_IOSTART && port < LAN_IOEND)
187 _ne_outb(b, PORT2ADDR_NE(port));
188 else
189#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
190 if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
191 *(volatile unsigned char *)__port2addr_ata(port) = b;
192 } else
193#endif
194#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
195 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
196 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
197 } else
198#endif
199 *(volatile unsigned char *)PORT2ADDR(port) = b;
200}
201
202void _outw(unsigned short w, unsigned long port)
203{
204 if (port >= LAN_IOSTART && port < LAN_IOEND)
205 _ne_outw(w, PORT2ADDR_NE(port));
206 else
207#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
208 if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
209 *(volatile unsigned short *)__port2addr_ata(port) = w;
210 } else
211#endif
212#if defined(CONFIG_USB)
213 if (port >= 0x340 && port < 0x3a0)
214 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
215 else
216#endif
217#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
218 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
219 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
220 } else
221#endif
222 *(volatile unsigned short *)PORT2ADDR(port) = w;
223}
224
225void _outl(unsigned long l, unsigned long port)
226{
227#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
228 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
229 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
230 } else
231#endif
232 *(volatile unsigned long *)PORT2ADDR(port) = l;
233}
234
235void _outb_p(unsigned char b, unsigned long port)
236{
237 _outb(b, port);
238 delay();
239}
240
241void _outw_p(unsigned short w, unsigned long port)
242{
243 _outw(w, port);
244 delay();
245}
246
247void _outl_p(unsigned long l, unsigned long port)
248{
249 _outl(l, port);
250 delay();
251}
252
253void _insb(unsigned int port, void * addr, unsigned long count)
254{
255 if (port >= LAN_IOSTART && port < LAN_IOEND)
256 _ne_insb(PORT2ADDR_NE(port), addr, count);
257#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
258 else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
259 unsigned char *buf = addr;
260 unsigned char *portp = __port2addr_ata(port);
261 while (count--)
262 *buf++ = *(volatile unsigned char *)portp;
263 }
264#endif
265#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
266 else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
267 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
268 count, 1);
269 }
270#endif
271 else {
272 unsigned char *buf = addr;
273 unsigned char *portp = PORT2ADDR(port);
274 while (count--)
275 *buf++ = *(volatile unsigned char *)portp;
276 }
277}
278
279void _insw(unsigned int port, void * addr, unsigned long count)
280{
281 unsigned short *buf = addr;
282 unsigned short *portp;
283
284 if (port >= LAN_IOSTART && port < LAN_IOEND) {
285 portp = PORT2ADDR_NE(port);
286 while (count--)
287 *buf++ = *(volatile unsigned short *)portp;
288#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
289 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
290 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
291 count, 1);
292#endif
293#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
294 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
295 portp = __port2addr_ata(port);
296 while (count--)
297 *buf++ = *(volatile unsigned short *)portp;
298#endif
299 } else {
300 portp = PORT2ADDR(port);
301 while (count--)
302 *buf++ = *(volatile unsigned short *)portp;
303 }
304}
305
306void _insl(unsigned int port, void * addr, unsigned long count)
307{
308 unsigned long *buf = addr;
309 unsigned long *portp;
310
311 portp = PORT2ADDR(port);
312 while (count--)
313 *buf++ = *(volatile unsigned long *)portp;
314}
315
316void _outsb(unsigned int port, const void * addr, unsigned long count)
317{
318 const unsigned char *buf = addr;
319 unsigned char *portp;
320
321 if (port >= LAN_IOSTART && port < LAN_IOEND) {
322 portp = PORT2ADDR_NE(port);
323 while (count--)
324 _ne_outb(*buf++, portp);
325#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
326 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
327 portp = __port2addr_ata(port);
328 while (count--)
329 *(volatile unsigned char *)portp = *buf++;
330#endif
331#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
332 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
333 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
334 count, 1);
335#endif
336 } else {
337 portp = PORT2ADDR(port);
338 while (count--)
339 *(volatile unsigned char *)portp = *buf++;
340 }
341}
342
343void _outsw(unsigned int port, const void * addr, unsigned long count)
344{
345 const unsigned short *buf = addr;
346 unsigned short *portp;
347
348 if (port >= LAN_IOSTART && port < LAN_IOEND) {
349 portp = PORT2ADDR_NE(port);
350 while (count--)
351 *(volatile unsigned short *)portp = *buf++;
352#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
353 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
354 portp = __port2addr_ata(port);
355 while (count--)
356 *(volatile unsigned short *)portp = *buf++;
357#endif
358#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
359 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
360 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
361 count, 1);
362#endif
363 } else {
364 portp = PORT2ADDR(port);
365 while (count--)
366 *(volatile unsigned short *)portp = *buf++;
367 }
368}
369
370void _outsl(unsigned int port, const void * addr, unsigned long count)
371{
372 const unsigned long *buf = addr;
373 unsigned char *portp;
374
375 portp = PORT2ADDR(port);
376 while (count--)
377 *(volatile unsigned long *)portp = *buf++;
378}
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-29 15:36:37 -0400