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-rw-r--r--arch/m32r/kernel/io_m32104ut.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/arch/m32r/kernel/io_m32104ut.c b/arch/m32r/kernel/io_m32104ut.c
new file mode 100644
index 000000000000..3df4215f1643
--- /dev/null
+++ b/arch/m32r/kernel/io_m32104ut.c
@@ -0,0 +1,298 @@
1/*
2 * linux/arch/m32r/kernel/io_m32104ut.c
3 *
4 * Typical I/O routines for M32104UT board.
5 *
6 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto, Mamoru Sakugawa,
8 * Naoto Sugai, Hayato Fujiwara
9 */
10
11#include <linux/config.h>
12#include <asm/m32r.h>
13#include <asm/page.h>
14#include <asm/io.h>
15#include <asm/byteorder.h>
16
17#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
18#include <linux/types.h>
19
20#define M32R_PCC_IOMAP_SIZE 0x1000
21
22#define M32R_PCC_IOSTART0 0x1000
23#define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
24
25extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
26extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
27extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
28extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
29#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
30
31#define PORT2ADDR(port) _port2addr(port)
32
33static inline void *_port2addr(unsigned long port)
34{
35 return (void *)(port + NONCACHE_OFFSET);
36}
37
38#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
39static inline void *__port2addr_ata(unsigned long port)
40{
41 static int dummy_reg;
42
43 switch (port) {
44 case 0x1f0: return (void *)0xac002000;
45 case 0x1f1: return (void *)0xac012800;
46 case 0x1f2: return (void *)0xac012002;
47 case 0x1f3: return (void *)0xac012802;
48 case 0x1f4: return (void *)0xac012004;
49 case 0x1f5: return (void *)0xac012804;
50 case 0x1f6: return (void *)0xac012006;
51 case 0x1f7: return (void *)0xac012806;
52 case 0x3f6: return (void *)0xac01200e;
53 default: return (void *)&dummy_reg;
54 }
55}
56#endif
57
58/*
59 * M32104T-LAN is located in the extended bus space
60 * from 0x01000000 to 0x01ffffff on physical address.
61 * The base address of LAN controller(LAN91C111) is 0x300.
62 */
63#define LAN_IOSTART 0x300
64#define LAN_IOEND 0x320
65static inline void *_port2addr_ne(unsigned long port)
66{
67 return (void *)(port + NONCACHE_OFFSET + 0x01000000);
68}
69
70static inline void delay(void)
71{
72 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
73}
74
75/*
76 * NIC I/O function
77 */
78
79#define PORT2ADDR_NE(port) _port2addr_ne(port)
80
81static inline unsigned char _ne_inb(void *portp)
82{
83 return *(volatile unsigned char *)portp;
84}
85
86static inline unsigned short _ne_inw(void *portp)
87{
88 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
89}
90
91static inline void _ne_insb(void *portp, void *addr, unsigned long count)
92{
93 unsigned char *buf = (unsigned char *)addr;
94
95 while (count--)
96 *buf++ = _ne_inb(portp);
97}
98
99static inline void _ne_outb(unsigned char b, void *portp)
100{
101 *(volatile unsigned char *)portp = b;
102}
103
104static inline void _ne_outw(unsigned short w, void *portp)
105{
106 *(volatile unsigned short *)portp = cpu_to_le16(w);
107}
108
109unsigned char _inb(unsigned long port)
110{
111 if (port >= LAN_IOSTART && port < LAN_IOEND)
112 return _ne_inb(PORT2ADDR_NE(port));
113
114 return *(volatile unsigned char *)PORT2ADDR(port);
115}
116
117unsigned short _inw(unsigned long port)
118{
119 if (port >= LAN_IOSTART && port < LAN_IOEND)
120 return _ne_inw(PORT2ADDR_NE(port));
121
122 return *(volatile unsigned short *)PORT2ADDR(port);
123}
124
125unsigned long _inl(unsigned long port)
126{
127 return *(volatile unsigned long *)PORT2ADDR(port);
128}
129
130unsigned char _inb_p(unsigned long port)
131{
132 unsigned char v = _inb(port);
133 delay();
134 return (v);
135}
136
137unsigned short _inw_p(unsigned long port)
138{
139 unsigned short v = _inw(port);
140 delay();
141 return (v);
142}
143
144unsigned long _inl_p(unsigned long port)
145{
146 unsigned long v = _inl(port);
147 delay();
148 return (v);
149}
150
151void _outb(unsigned char b, unsigned long port)
152{
153 if (port >= LAN_IOSTART && port < LAN_IOEND)
154 _ne_outb(b, PORT2ADDR_NE(port));
155 else
156 *(volatile unsigned char *)PORT2ADDR(port) = b;
157}
158
159void _outw(unsigned short w, unsigned long port)
160{
161 if (port >= LAN_IOSTART && port < LAN_IOEND)
162 _ne_outw(w, PORT2ADDR_NE(port));
163 else
164 *(volatile unsigned short *)PORT2ADDR(port) = w;
165}
166
167void _outl(unsigned long l, unsigned long port)
168{
169 *(volatile unsigned long *)PORT2ADDR(port) = l;
170}
171
172void _outb_p(unsigned char b, unsigned long port)
173{
174 _outb(b, port);
175 delay();
176}
177
178void _outw_p(unsigned short w, unsigned long port)
179{
180 _outw(w, port);
181 delay();
182}
183
184void _outl_p(unsigned long l, unsigned long port)
185{
186 _outl(l, port);
187 delay();
188}
189
190void _insb(unsigned int port, void *addr, unsigned long count)
191{
192 if (port >= LAN_IOSTART && port < LAN_IOEND)
193 _ne_insb(PORT2ADDR_NE(port), addr, count);
194 else {
195 unsigned char *buf = addr;
196 unsigned char *portp = PORT2ADDR(port);
197 while (count--)
198 *buf++ = *(volatile unsigned char *)portp;
199 }
200}
201
202void _insw(unsigned int port, void *addr, unsigned long count)
203{
204 unsigned short *buf = addr;
205 unsigned short *portp;
206
207 if (port >= LAN_IOSTART && port < LAN_IOEND) {
208 /*
209 * This portion is only used by smc91111.c to read data
210 * from the DATA_REG. Do not swap the data.
211 */
212 portp = PORT2ADDR_NE(port);
213 while (count--)
214 *buf++ = *(volatile unsigned short *)portp;
215#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
216 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
217 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
218 count, 1);
219#endif
220#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
221 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
222 portp = __port2addr_ata(port);
223 while (count--)
224 *buf++ = *(volatile unsigned short *)portp;
225#endif
226 } else {
227 portp = PORT2ADDR(port);
228 while (count--)
229 *buf++ = *(volatile unsigned short *)portp;
230 }
231}
232
233void _insl(unsigned int port, void *addr, unsigned long count)
234{
235 unsigned long *buf = addr;
236 unsigned long *portp;
237
238 portp = PORT2ADDR(port);
239 while (count--)
240 *buf++ = *(volatile unsigned long *)portp;
241}
242
243void _outsb(unsigned int port, const void *addr, unsigned long count)
244{
245 const unsigned char *buf = addr;
246 unsigned char *portp;
247
248 if (port >= LAN_IOSTART && port < LAN_IOEND) {
249 portp = PORT2ADDR_NE(port);
250 while (count--)
251 _ne_outb(*buf++, portp);
252 } else {
253 portp = PORT2ADDR(port);
254 while (count--)
255 *(volatile unsigned char *)portp = *buf++;
256 }
257}
258
259void _outsw(unsigned int port, const void *addr, unsigned long count)
260{
261 const unsigned short *buf = addr;
262 unsigned short *portp;
263
264 if (port >= LAN_IOSTART && port < LAN_IOEND) {
265 /*
266 * This portion is only used by smc91111.c to write data
267 * into the DATA_REG. Do not swap the data.
268 */
269 portp = PORT2ADDR_NE(port);
270 while (count--)
271 *(volatile unsigned short *)portp = *buf++;
272#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
273 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
274 portp = __port2addr_ata(port);
275 while (count--)
276 *(volatile unsigned short *)portp = *buf++;
277#endif
278#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
279 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
280 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
281 count, 1);
282#endif
283 } else {
284 portp = PORT2ADDR(port);
285 while (count--)
286 *(volatile unsigned short *)portp = *buf++;
287 }
288}
289
290void _outsl(unsigned int port, const void *addr, unsigned long count)
291{
292 const unsigned long *buf = addr;
293 unsigned char *portp;
294
295 portp = PORT2ADDR(port);
296 while (count--)
297 *(volatile unsigned long *)portp = *buf++;
298}