1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/*
* linux/arch/sh/kernel/io_hs7751rvoip.c
*
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel
* Based largely on io_se.c.
*
* I/O routine for Renesas Technology sales HS7751RVoIP
*
* Initial version only to support LAN access; some
* placeholder code from io_hs7751rvoip.c left in with the
* expectation of later SuperIO and PCMCIA access.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/hs7751rvoip/hs7751rvoip.h>
#include <asm/addrspace.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "../../../drivers/pci/pci-sh7751.h"
extern void *area5_io8_base; /* Area 5 8bit I/O Base address */
extern void *area6_io8_base; /* Area 6 8bit I/O Base address */
extern void *area5_io16_base; /* Area 5 16bit I/O Base address */
extern void *area6_io16_base; /* Area 6 16bit I/O Base address */
/*
* The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC)
* of the 7751R processor, and has a SuperIO accessible via the PCI.
* The board also includes a PCMCIA controller on its memory bus,
* like the other Solution Engine boards.
*/
#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
#define PCI_IO_AREA SH7751_PCI_IO_BASE
#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
#if defined(CONFIG_HS7751RVOIP_CODEC)
#define CODEC_IO_BASE 0x1000
#endif
#define maybebadio(name,port) \
printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
#name, (port), (__u32) __builtin_return_address(0))
static inline void delay(void)
{
ctrl_inw(0xa0000000);
}
static inline unsigned long port2adr(unsigned int port)
{
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
if (port == 0x3f6)
return ((unsigned long)area5_io16_base + 0x0c);
else
return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1));
else
maybebadio(port2adr, (unsigned long)port);
return port;
}
/* The 7751R HS7751RVoIP seems to have everything hooked */
/* up pretty normally (nothing on high-bytes only...) so this */
/* shouldn't be needed */
static inline int shifted_port(unsigned long port)
{
/* For IDE registers, value is not shifted */
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
return 0;
else
return 1;
}
#if defined(CONFIG_HS7751RVOIP_CODEC)
static inline int
codec_port(unsigned long port)
{
if (CODEC_IO_BASE <= port && port < (CODEC_IO_BASE+0x20))
return 1;
else
return 0;
}
#endif
/* In case someone configures the kernel w/o PCI support: in that */
/* scenario, don't ever bother to check for PCI-window addresses */
/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
#if defined(CONFIG_PCI)
#define CHECK_SH7751_PCIIO(port) \
((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
#else
#define CHECK_SH7751_PCIIO(port) (0)
#endif
/*
* General outline: remap really low stuff [eventually] to SuperIO,
* stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
* is mapped through the PCI IO window. Stuff with high bits (PXSEG)
* should be way beyond the window, and is used w/o translation for
* compatibility.
*/
unsigned char hs7751rvoip_inb(unsigned long port)
{
if (PXSEG(port))
return *(volatile unsigned char *)port;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
return *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
return *(volatile unsigned char *)PCI_IOMAP(port);
else
return (*(volatile unsigned short *)port2adr(port) & 0xff);
}
unsigned char hs7751rvoip_inb_p(unsigned long port)
{
unsigned char v;
if (PXSEG(port))
v = *(volatile unsigned char *)port;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
v = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
v = *(volatile unsigned char *)PCI_IOMAP(port);
else
v = (*(volatile unsigned short *)port2adr(port) & 0xff);
delay();
return v;
}
unsigned short hs7751rvoip_inw(unsigned long port)
{
if (PXSEG(port))
return *(volatile unsigned short *)port;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
return *(volatile unsigned short *)PCI_IOMAP(port);
else
maybebadio(inw, port);
return 0;
}
unsigned int hs7751rvoip_inl(unsigned long port)
{
if (PXSEG(port))
return *(volatile unsigned long *)port;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
return *(volatile unsigned long *)PCI_IOMAP(port);
else
maybebadio(inl, port);
return 0;
}
void hs7751rvoip_outb(unsigned char value, unsigned long port)
{
if (PXSEG(port))
*(volatile unsigned char *)port = value;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
*(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
*(unsigned char *)PCI_IOMAP(port) = value;
else
*(volatile unsigned short *)port2adr(port) = value;
}
void hs7751rvoip_outb_p(unsigned char value, unsigned long port)
{
if (PXSEG(port))
*(volatile unsigned char *)port = value;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
*(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
*(unsigned char *)PCI_IOMAP(port) = value;
else
*(volatile unsigned short *)port2adr(port) = value;
delay();
}
void hs7751rvoip_outw(unsigned short value, unsigned long port)
{
if (PXSEG(port))
*(volatile unsigned short *)port = value;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
*(unsigned short *)PCI_IOMAP(port) = value;
else
maybebadio(outw, port);
}
void hs7751rvoip_outl(unsigned int value, unsigned long port)
{
if (PXSEG(port))
*(volatile unsigned long *)port = value;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
*((unsigned long *)PCI_IOMAP(port)) = value;
else
maybebadio(outl, port);
}
void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count)
{
if (PXSEG(port))
while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
while (count--) *((volatile unsigned char *) addr)++ = *bp;
} else {
volatile __u16 *p = (volatile unsigned short *)port2adr(port);
while (count--) *((unsigned char *) addr)++ = *p & 0xff;
}
}
void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count)
{
volatile __u16 *p;
if (PXSEG(port))
p = (volatile unsigned short *)port;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
p = (volatile unsigned short *)PCI_IOMAP(port);
else
p = (volatile unsigned short *)port2adr(port);
while (count--) *((__u16 *) addr)++ = *p;
}
void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count)
{
if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
while (count--) *((__u32 *) addr)++ = *p;
} else
maybebadio(insl, port);
}
void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count)
{
if (PXSEG(port))
while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++;
#if defined(CONFIG_HS7751RVOIP_CODEC)
else if (codec_port(port))
while (count--) *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = *((unsigned char *) addr)++;
#endif
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
while (count--) *bp = *((volatile unsigned char *) addr)++;
} else {
volatile __u16 *p = (volatile unsigned short *)port2adr(port);
while (count--) *p = *((unsigned char *) addr)++;
}
}
void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count)
{
volatile __u16 *p;
if (PXSEG(port))
p = (volatile unsigned short *)port;
else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
p = (volatile unsigned short *)PCI_IOMAP(port);
else
p = (volatile unsigned short *)port2adr(port);
while (count--) *p = *((__u16 *) addr)++;
}
void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count)
{
if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
while (count--) *p = *((__u32 *) addr)++;
} else
maybebadio(outsl, port);
}
void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size)
{
if (offset >= 0xfd000000)
return (void *)offset;
else
return (void *)P2SEGADDR(offset);
}
EXPORT_SYMBOL(hs7751rvoip_ioremap);
unsigned long hs7751rvoip_isa_port2addr(unsigned long offset)
{
return port2adr(offset);
}
|
