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-rw-r--r--arch/sh/boards/renesas/rts7751r2d/io.c191
1 files changed, 84 insertions, 107 deletions
diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c
index 123abbbc91e0..135aa0b5e62d 100644
--- a/arch/sh/boards/renesas/rts7751r2d/io.c
+++ b/arch/sh/boards/renesas/rts7751r2d/io.c
@@ -1,6 +1,4 @@
1/* 1/*
2 * linux/arch/sh/kernel/io_rts7751r2d.c
3 *
4 * Copyright (C) 2001 Ian da Silva, Jeremy Siegel 2 * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
5 * Based largely on io_se.c. 3 * Based largely on io_se.c.
6 * 4 *
@@ -10,17 +8,13 @@
10 * placeholder code from io_rts7751r2d.c left in with the 8 * placeholder code from io_rts7751r2d.c left in with the
11 * expectation of later SuperIO and PCMCIA access. 9 * expectation of later SuperIO and PCMCIA access.
12 */ 10 */
13
14#include <linux/kernel.h> 11#include <linux/kernel.h>
15#include <linux/types.h> 12#include <linux/types.h>
16#include <asm/io.h> 13#include <linux/pci.h>
17#include <asm/rts7751r2d/rts7751r2d.h> 14#include <asm/rts7751r2d/rts7751r2d.h>
15#include <asm/io.h>
18#include <asm/addrspace.h> 16#include <asm/addrspace.h>
19 17
20#include <linux/module.h>
21#include <linux/pci.h>
22#include "../../../drivers/pci/pci-sh7751.h"
23
24/* 18/*
25 * The 7751R RTS7751R2D uses the built-in PCI controller (PCIC) 19 * The 7751R RTS7751R2D uses the built-in PCI controller (PCIC)
26 * of the 7751R processor, and has a SuperIO accessible via the PCI. 20 * of the 7751R processor, and has a SuperIO accessible via the PCI.
@@ -28,22 +22,6 @@
28 * like the other Solution Engine boards. 22 * like the other Solution Engine boards.
29 */ 23 */
30 24
31#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
32#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
33#define PCI_IO_AREA SH7751_PCI_IO_BASE
34#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
35
36#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
37
38#define maybebadio(name,port) \
39 printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
40 #name, (port), (__u32) __builtin_return_address(0))
41
42static inline void delay(void)
43{
44 ctrl_inw(0xa0000000);
45}
46
47static inline unsigned long port2adr(unsigned int port) 25static inline unsigned long port2adr(unsigned int port)
48{ 26{
49 if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) 27 if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
@@ -52,7 +30,7 @@ static inline unsigned long port2adr(unsigned int port)
52 else 30 else
53 return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1)); 31 return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1));
54 else 32 else
55 maybebadio(port2adr, (unsigned long)port); 33 maybebadio((unsigned long)port);
56 34
57 return port; 35 return port;
58} 36}
@@ -81,17 +59,6 @@ static inline int shifted_port(unsigned long port)
81 return 1; 59 return 1;
82} 60}
83 61
84/* In case someone configures the kernel w/o PCI support: in that */
85/* scenario, don't ever bother to check for PCI-window addresses */
86
87/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
88#if defined(CONFIG_PCI)
89#define CHECK_SH7751_PCIIO(port) \
90 ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
91#else
92#define CHECK_SH7751_PCIIO(port) (0)
93#endif
94
95#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) 62#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE)
96#define CHECK_AX88796L_PORT(port) \ 63#define CHECK_AX88796L_PORT(port) \
97 ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) 64 ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20)))
@@ -112,8 +79,8 @@ unsigned char rts7751r2d_inb(unsigned long port)
112 return (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; 79 return (*(volatile unsigned short *)port88796l(port, 0)) & 0xff;
113 else if (PXSEG(port)) 80 else if (PXSEG(port))
114 return *(volatile unsigned char *)port; 81 return *(volatile unsigned char *)port;
115 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 82 else if (is_pci_ioaddr(port) || shifted_port(port))
116 return *(volatile unsigned char *)PCI_IOMAP(port); 83 return *(volatile unsigned char *)pci_ioaddr(port);
117 else 84 else
118 return (*(volatile unsigned short *)port2adr(port) & 0xff); 85 return (*(volatile unsigned short *)port2adr(port) & 0xff);
119} 86}
@@ -126,11 +93,12 @@ unsigned char rts7751r2d_inb_p(unsigned long port)
126 v = (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; 93 v = (*(volatile unsigned short *)port88796l(port, 0)) & 0xff;
127 else if (PXSEG(port)) 94 else if (PXSEG(port))
128 v = *(volatile unsigned char *)port; 95 v = *(volatile unsigned char *)port;
129 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 96 else if (is_pci_ioaddr(port) || shifted_port(port))
130 v = *(volatile unsigned char *)PCI_IOMAP(port); 97 v = *(volatile unsigned char *)pci_ioaddr(port);
131 else 98 else
132 v = (*(volatile unsigned short *)port2adr(port) & 0xff); 99 v = (*(volatile unsigned short *)port2adr(port) & 0xff);
133 delay(); 100
101 ctrl_delay();
134 102
135 return v; 103 return v;
136} 104}
@@ -138,13 +106,13 @@ unsigned char rts7751r2d_inb_p(unsigned long port)
138unsigned short rts7751r2d_inw(unsigned long port) 106unsigned short rts7751r2d_inw(unsigned long port)
139{ 107{
140 if (CHECK_AX88796L_PORT(port)) 108 if (CHECK_AX88796L_PORT(port))
141 maybebadio(inw, port); 109 maybebadio(port);
142 else if (PXSEG(port)) 110 else if (PXSEG(port))
143 return *(volatile unsigned short *)port; 111 return *(volatile unsigned short *)port;
144 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 112 else if (is_pci_ioaddr(port) || shifted_port(port))
145 return *(volatile unsigned short *)PCI_IOMAP(port); 113 return *(volatile unsigned short *)pci_ioaddr(port);
146 else 114 else
147 maybebadio(inw, port); 115 maybebadio(port);
148 116
149 return 0; 117 return 0;
150} 118}
@@ -152,13 +120,13 @@ unsigned short rts7751r2d_inw(unsigned long port)
152unsigned int rts7751r2d_inl(unsigned long port) 120unsigned int rts7751r2d_inl(unsigned long port)
153{ 121{
154 if (CHECK_AX88796L_PORT(port)) 122 if (CHECK_AX88796L_PORT(port))
155 maybebadio(inl, port); 123 maybebadio(port);
156 else if (PXSEG(port)) 124 else if (PXSEG(port))
157 return *(volatile unsigned long *)port; 125 return *(volatile unsigned long *)port;
158 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 126 else if (is_pci_ioaddr(port) || shifted_port(port))
159 return *(volatile unsigned long *)PCI_IOMAP(port); 127 return *(volatile unsigned long *)pci_ioaddr(port);
160 else 128 else
161 maybebadio(inl, port); 129 maybebadio(port);
162 130
163 return 0; 131 return 0;
164} 132}
@@ -169,8 +137,8 @@ void rts7751r2d_outb(unsigned char value, unsigned long port)
169 *((volatile unsigned short *)port88796l(port, 0)) = value; 137 *((volatile unsigned short *)port88796l(port, 0)) = value;
170 else if (PXSEG(port)) 138 else if (PXSEG(port))
171 *(volatile unsigned char *)port = value; 139 *(volatile unsigned char *)port = value;
172 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 140 else if (is_pci_ioaddr(port) || shifted_port(port))
173 *(volatile unsigned char *)PCI_IOMAP(port) = value; 141 *(volatile unsigned char *)pci_ioaddr(port) = value;
174 else 142 else
175 *(volatile unsigned short *)port2adr(port) = value; 143 *(volatile unsigned short *)port2adr(port) = value;
176} 144}
@@ -181,143 +149,152 @@ void rts7751r2d_outb_p(unsigned char value, unsigned long port)
181 *((volatile unsigned short *)port88796l(port, 0)) = value; 149 *((volatile unsigned short *)port88796l(port, 0)) = value;
182 else if (PXSEG(port)) 150 else if (PXSEG(port))
183 *(volatile unsigned char *)port = value; 151 *(volatile unsigned char *)port = value;
184 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 152 else if (is_pci_ioaddr(port) || shifted_port(port))
185 *(volatile unsigned char *)PCI_IOMAP(port) = value; 153 *(volatile unsigned char *)pci_ioaddr(port) = value;
186 else 154 else
187 *(volatile unsigned short *)port2adr(port) = value; 155 *(volatile unsigned short *)port2adr(port) = value;
188 delay(); 156
157 ctrl_delay();
189} 158}
190 159
191void rts7751r2d_outw(unsigned short value, unsigned long port) 160void rts7751r2d_outw(unsigned short value, unsigned long port)
192{ 161{
193 if (CHECK_AX88796L_PORT(port)) 162 if (CHECK_AX88796L_PORT(port))
194 maybebadio(outw, port); 163 maybebadio(port);
195 else if (PXSEG(port)) 164 else if (PXSEG(port))
196 *(volatile unsigned short *)port = value; 165 *(volatile unsigned short *)port = value;
197 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 166 else if (is_pci_ioaddr(port) || shifted_port(port))
198 *(volatile unsigned short *)PCI_IOMAP(port) = value; 167 *(volatile unsigned short *)pci_ioaddr(port) = value;
199 else 168 else
200 maybebadio(outw, port); 169 maybebadio(port);
201} 170}
202 171
203void rts7751r2d_outl(unsigned int value, unsigned long port) 172void rts7751r2d_outl(unsigned int value, unsigned long port)
204{ 173{
205 if (CHECK_AX88796L_PORT(port)) 174 if (CHECK_AX88796L_PORT(port))
206 maybebadio(outl, port); 175 maybebadio(port);
207 else if (PXSEG(port)) 176 else if (PXSEG(port))
208 *(volatile unsigned long *)port = value; 177 *(volatile unsigned long *)port = value;
209 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 178 else if (is_pci_ioaddr(port) || shifted_port(port))
210 *(volatile unsigned long *)PCI_IOMAP(port) = value; 179 *(volatile unsigned long *)pci_ioaddr(port) = value;
211 else 180 else
212 maybebadio(outl, port); 181 maybebadio(port);
213} 182}
214 183
215void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count) 184void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count)
216{ 185{
186 unsigned long a = (unsigned long)addr;
217 volatile __u8 *bp; 187 volatile __u8 *bp;
218 volatile __u16 *p; 188 volatile __u16 *p;
219 unsigned char *s = addr;
220 189
221 if (CHECK_AX88796L_PORT(port)) { 190 if (CHECK_AX88796L_PORT(port)) {
222 p = (volatile unsigned short *)port88796l(port, 0); 191 p = (volatile unsigned short *)port88796l(port, 0);
223 while (count--) *s++ = *p & 0xff; 192 while (count--)
193 ctrl_outb(*p & 0xff, a++);
224 } else if (PXSEG(port)) 194 } else if (PXSEG(port))
225 while (count--) *s++ = *(volatile unsigned char *)port; 195 while (count--)
226 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { 196 ctrl_outb(ctrl_inb(port), a++);
227 bp = (__u8 *)PCI_IOMAP(port); 197 else if (is_pci_ioaddr(port) || shifted_port(port)) {
228 while (count--) *s++ = *bp; 198 bp = (__u8 *)pci_ioaddr(port);
199 while (count--)
200 ctrl_outb(*bp, a++);
229 } else { 201 } else {
230 p = (volatile unsigned short *)port2adr(port); 202 p = (volatile unsigned short *)port2adr(port);
231 while (count--) *s++ = *p & 0xff; 203 while (count--)
204 ctrl_outb(*p & 0xff, a++);
232 } 205 }
233} 206}
234 207
235void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count) 208void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count)
236{ 209{
210 unsigned long a = (unsigned long)addr;
237 volatile __u16 *p; 211 volatile __u16 *p;
238 __u16 *s = addr;
239 212
240 if (CHECK_AX88796L_PORT(port)) 213 if (CHECK_AX88796L_PORT(port))
241 p = (volatile unsigned short *)port88796l(port, 1); 214 p = (volatile unsigned short *)port88796l(port, 1);
242 else if (PXSEG(port)) 215 else if (PXSEG(port))
243 p = (volatile unsigned short *)port; 216 p = (volatile unsigned short *)port;
244 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 217 else if (is_pci_ioaddr(port) || shifted_port(port))
245 p = (volatile unsigned short *)PCI_IOMAP(port); 218 p = (volatile unsigned short *)pci_ioaddr(port);
246 else 219 else
247 p = (volatile unsigned short *)port2adr(port); 220 p = (volatile unsigned short *)port2adr(port);
248 while (count--) *s++ = *p; 221 while (count--)
222 ctrl_outw(*p, a++);
249} 223}
250 224
251void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count) 225void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count)
252{ 226{
253 if (CHECK_AX88796L_PORT(port)) 227 if (CHECK_AX88796L_PORT(port))
254 maybebadio(insl, port); 228 maybebadio(port);
255 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { 229 else if (is_pci_ioaddr(port) || shifted_port(port)) {
256 volatile __u32 *p = (__u32 *)PCI_IOMAP(port); 230 unsigned long a = (unsigned long)addr;
257 __u32 *s = addr; 231
258 232 while (count--) {
259 while (count--) *s++ = *p; 233 ctrl_outl(ctrl_inl(pci_ioaddr(port)), a);
234 a += 4;
235 }
260 } else 236 } else
261 maybebadio(insl, port); 237 maybebadio(port);
262} 238}
263 239
264void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count) 240void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count)
265{ 241{
242 unsigned long a = (unsigned long)addr;
266 volatile __u8 *bp; 243 volatile __u8 *bp;
267 volatile __u16 *p; 244 volatile __u16 *p;
268 const __u8 *s = addr;
269 245
270 if (CHECK_AX88796L_PORT(port)) { 246 if (CHECK_AX88796L_PORT(port)) {
271 p = (volatile unsigned short *)port88796l(port, 0); 247 p = (volatile unsigned short *)port88796l(port, 0);
272 while (count--) *p = *s++; 248 while (count--)
249 *p = ctrl_inb(a++);
273 } else if (PXSEG(port)) 250 } else if (PXSEG(port))
274 while (count--) *(volatile unsigned char *)port = *s++; 251 while (count--)
275 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { 252 ctrl_outb(a++, port);
276 bp = (__u8 *)PCI_IOMAP(port); 253 else if (is_pci_ioaddr(port) || shifted_port(port)) {
277 while (count--) *bp = *s++; 254 bp = (__u8 *)pci_ioaddr(port);
255 while (count--)
256 *bp = ctrl_inb(a++);
278 } else { 257 } else {
279 p = (volatile unsigned short *)port2adr(port); 258 p = (volatile unsigned short *)port2adr(port);
280 while (count--) *p = *s++; 259 while (count--)
260 *p = ctrl_inb(a++);
281 } 261 }
282} 262}
283 263
284void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count) 264void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count)
285{ 265{
266 unsigned long a = (unsigned long)addr;
286 volatile __u16 *p; 267 volatile __u16 *p;
287 const __u16 *s = addr;
288 268
289 if (CHECK_AX88796L_PORT(port)) 269 if (CHECK_AX88796L_PORT(port))
290 p = (volatile unsigned short *)port88796l(port, 1); 270 p = (volatile unsigned short *)port88796l(port, 1);
291 else if (PXSEG(port)) 271 else if (PXSEG(port))
292 p = (volatile unsigned short *)port; 272 p = (volatile unsigned short *)port;
293 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) 273 else if (is_pci_ioaddr(port) || shifted_port(port))
294 p = (volatile unsigned short *)PCI_IOMAP(port); 274 p = (volatile unsigned short *)pci_ioaddr(port);
295 else 275 else
296 p = (volatile unsigned short *)port2adr(port); 276 p = (volatile unsigned short *)port2adr(port);
297 while (count--) *p = *s++; 277
278 while (count--) {
279 ctrl_outw(*p, a);
280 a += 2;
281 }
298} 282}
299 283
300void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count) 284void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count)
301{ 285{
302 if (CHECK_AX88796L_PORT(port)) 286 if (CHECK_AX88796L_PORT(port))
303 maybebadio(outsl, port); 287 maybebadio(port);
304 else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { 288 else if (is_pci_ioaddr(port) || shifted_port(port)) {
305 volatile __u32 *p = (__u32 *)PCI_IOMAP(port); 289 unsigned long a = (unsigned long)addr;
306 const __u32 *s = addr; 290
307 291 while (count--) {
308 while (count--) *p = *s++; 292 ctrl_outl(ctrl_inl(a), pci_ioaddr(port));
293 a += 4;
294 }
309 } else 295 } else
310 maybebadio(outsl, port); 296 maybebadio(port);
311}
312
313void *rts7751r2d_ioremap(unsigned long offset, unsigned long size)
314{
315 if (offset >= 0xfd000000)
316 return (void *)offset;
317 else
318 return (void *)P2SEGADDR(offset);
319} 297}
320EXPORT_SYMBOL(rts7751r2d_ioremap);
321 298
322unsigned long rts7751r2d_isa_port2addr(unsigned long offset) 299unsigned long rts7751r2d_isa_port2addr(unsigned long offset)
323{ 300{