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-rw-r--r--arch/sh/boards/mach-microdev/io.c246
1 files changed, 2 insertions, 244 deletions
diff --git a/arch/sh/boards/mach-microdev/io.c b/arch/sh/boards/mach-microdev/io.c
index 2960c659020e..acdafb0c6404 100644
--- a/arch/sh/boards/mach-microdev/io.c
+++ b/arch/sh/boards/mach-microdev/io.c
@@ -54,7 +54,7 @@
54/* 54/*
55 * map I/O ports to memory-mapped addresses 55 * map I/O ports to memory-mapped addresses
56 */ 56 */
57static unsigned long microdev_isa_port2addr(unsigned long offset) 57void __iomem *microdev_ioport_map(unsigned long offset, unsigned int len)
58{ 58{
59 unsigned long result; 59 unsigned long result;
60 60
@@ -72,16 +72,6 @@ static unsigned long microdev_isa_port2addr(unsigned long offset)
72 * Configuration Registers 72 * Configuration Registers
73 */ 73 */
74 result = IO_SUPERIO_PHYS + (offset << 1); 74 result = IO_SUPERIO_PHYS + (offset << 1);
75#if 0
76 } else if (offset == KBD_DATA_REG || offset == KBD_CNTL_REG ||
77 offset == KBD_STATUS_REG) {
78 /*
79 * SMSC FDC37C93xAPM SuperIO chip
80 *
81 * PS/2 Keyboard + Mouse (ports 0x60 and 0x64).
82 */
83 result = IO_SUPERIO_PHYS + (offset << 1);
84#endif
85 } else if (((offset >= IO_IDE1_BASE) && 75 } else if (((offset >= IO_IDE1_BASE) &&
86 (offset < IO_IDE1_BASE + IO_IDE_EXTENT)) || 76 (offset < IO_IDE1_BASE + IO_IDE_EXTENT)) ||
87 (offset == IO_IDE1_MISC)) { 77 (offset == IO_IDE1_MISC)) {
@@ -131,237 +121,5 @@ static unsigned long microdev_isa_port2addr(unsigned long offset)
131 result = PVR; 121 result = PVR;
132 } 122 }
133 123
134 return result; 124 return (void __iomem *)result;
135}
136
137#define PORT2ADDR(x) (microdev_isa_port2addr(x))
138
139static inline void delay(void)
140{
141#if defined(CONFIG_PCI)
142 /* System board present, just make a dummy SRAM access. (CS0 will be
143 mapped to PCI memory, probably good to avoid it.) */
144 __raw_readw(0xa6800000);
145#else
146 /* CS0 will be mapped to flash, ROM etc so safe to access it. */
147 __raw_readw(0xa0000000);
148#endif
149}
150
151unsigned char microdev_inb(unsigned long port)
152{
153#ifdef CONFIG_PCI
154 if (port >= PCIBIOS_MIN_IO)
155 return microdev_pci_inb(port);
156#endif
157 return *(volatile unsigned char*)PORT2ADDR(port);
158}
159
160unsigned short microdev_inw(unsigned long port)
161{
162#ifdef CONFIG_PCI
163 if (port >= PCIBIOS_MIN_IO)
164 return microdev_pci_inw(port);
165#endif
166 return *(volatile unsigned short*)PORT2ADDR(port);
167}
168
169unsigned int microdev_inl(unsigned long port)
170{
171#ifdef CONFIG_PCI
172 if (port >= PCIBIOS_MIN_IO)
173 return microdev_pci_inl(port);
174#endif
175 return *(volatile unsigned int*)PORT2ADDR(port);
176}
177
178void microdev_outw(unsigned short b, unsigned long port)
179{
180#ifdef CONFIG_PCI
181 if (port >= PCIBIOS_MIN_IO) {
182 microdev_pci_outw(b, port);
183 return;
184 }
185#endif
186 *(volatile unsigned short*)PORT2ADDR(port) = b;
187}
188
189void microdev_outb(unsigned char b, unsigned long port)
190{
191#ifdef CONFIG_PCI
192 if (port >= PCIBIOS_MIN_IO) {
193 microdev_pci_outb(b, port);
194 return;
195 }
196#endif
197
198 /*
199 * There is a board feature with the current SH4-202 MicroDev in
200 * that the 2 byte enables (nBE0 and nBE1) are tied together (and
201 * to the Chip Select Line (Ethernet_CS)). Due to this connectivity,
202 * it is not possible to safely perform 8-bit writes to the
203 * Ethernet registers, as 16-bits will be consumed from the Data
204 * lines (corrupting the other byte). Hence, this function is
205 * written to implement 16-bit read/modify/write for all byte-wide
206 * accesses.
207 *
208 * Note: there is no problem with byte READS (even or odd).
209 *
210 * Sean McGoogan - 16th June 2003.
211 */
212 if ((port >= IO_LAN91C111_BASE) &&
213 (port < IO_LAN91C111_BASE + IO_LAN91C111_EXTENT)) {
214 /*
215 * Then are trying to perform a byte-write to the
216 * LAN91C111. This needs special care.
217 */
218 if (port % 2 == 1) { /* is the port odd ? */
219 /* unset bit-0, i.e. make even */
220 const unsigned long evenPort = port-1;
221 unsigned short word;
222
223 /*
224 * do a 16-bit read/write to write to 'port',
225 * preserving even byte.
226 *
227 * Even addresses are bits 0-7
228 * Odd addresses are bits 8-15
229 */
230 word = microdev_inw(evenPort);
231 word = (word & 0xffu) | (b << 8);
232 microdev_outw(word, evenPort);
233 } else {
234 /* else, we are trying to do an even byte write */
235 unsigned short word;
236
237 /*
238 * do a 16-bit read/write to write to 'port',
239 * preserving odd byte.
240 *
241 * Even addresses are bits 0-7
242 * Odd addresses are bits 8-15
243 */
244 word = microdev_inw(port);
245 word = (word & 0xff00u) | (b);
246 microdev_outw(word, port);
247 }
248 } else {
249 *(volatile unsigned char*)PORT2ADDR(port) = b;
250 }
251}
252
253void microdev_outl(unsigned int b, unsigned long port)
254{
255#ifdef CONFIG_PCI
256 if (port >= PCIBIOS_MIN_IO) {
257 microdev_pci_outl(b, port);
258 return;
259 }
260#endif
261 *(volatile unsigned int*)PORT2ADDR(port) = b;
262}
263
264unsigned char microdev_inb_p(unsigned long port)
265{
266 unsigned char v = microdev_inb(port);
267 delay();
268 return v;
269}
270
271unsigned short microdev_inw_p(unsigned long port)
272{
273 unsigned short v = microdev_inw(port);
274 delay();
275 return v;
276}
277
278unsigned int microdev_inl_p(unsigned long port)
279{
280 unsigned int v = microdev_inl(port);
281 delay();
282 return v;
283}
284
285void microdev_outb_p(unsigned char b, unsigned long port)
286{
287 microdev_outb(b, port);
288 delay();
289}
290
291void microdev_outw_p(unsigned short b, unsigned long port)
292{
293 microdev_outw(b, port);
294 delay();
295}
296
297void microdev_outl_p(unsigned int b, unsigned long port)
298{
299 microdev_outl(b, port);
300 delay();
301}
302
303void microdev_insb(unsigned long port, void *buffer, unsigned long count)
304{
305 volatile unsigned char *port_addr;
306 unsigned char *buf = buffer;
307
308 port_addr = (volatile unsigned char *)PORT2ADDR(port);
309
310 while (count--)
311 *buf++ = *port_addr;
312}
313
314void microdev_insw(unsigned long port, void *buffer, unsigned long count)
315{
316 volatile unsigned short *port_addr;
317 unsigned short *buf = buffer;
318
319 port_addr = (volatile unsigned short *)PORT2ADDR(port);
320
321 while (count--)
322 *buf++ = *port_addr;
323}
324
325void microdev_insl(unsigned long port, void *buffer, unsigned long count)
326{
327 volatile unsigned long *port_addr;
328 unsigned int *buf = buffer;
329
330 port_addr = (volatile unsigned long *)PORT2ADDR(port);
331
332 while (count--)
333 *buf++ = *port_addr;
334}
335
336void microdev_outsb(unsigned long port, const void *buffer, unsigned long count)
337{
338 volatile unsigned char *port_addr;
339 const unsigned char *buf = buffer;
340
341 port_addr = (volatile unsigned char *)PORT2ADDR(port);
342
343 while (count--)
344 *port_addr = *buf++;
345}
346
347void microdev_outsw(unsigned long port, const void *buffer, unsigned long count)
348{
349 volatile unsigned short *port_addr;
350 const unsigned short *buf = buffer;
351
352 port_addr = (volatile unsigned short *)PORT2ADDR(port);
353
354 while (count--)
355 *port_addr = *buf++;
356}
357
358void microdev_outsl(unsigned long port, const void *buffer, unsigned long count)
359{
360 volatile unsigned long *port_addr;
361 const unsigned int *buf = buffer;
362
363 port_addr = (volatile unsigned long *)PORT2ADDR(port);
364
365 while (count--)
366 *port_addr = *buf++;
367} 125}
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