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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid
[mirror_ubuntu-artful-kernel.git] / arch / mips / tx4927 / toshiba_rbtx4927 / toshiba_rbtx4927_setup.c
1 /*
2 * Toshiba rbtx4927 specific setup
3 *
4 * Author: MontaVista Software, Inc.
5 * source@mvista.com
6 *
7 * Copyright 2001-2002 MontaVista Software Inc.
8 *
9 * Copyright (C) 1996, 97, 2001, 04 Ralf Baechle (ralf@linux-mips.org)
10 * Copyright (C) 2000 RidgeRun, Inc.
11 * Author: RidgeRun, Inc.
12 * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
13 *
14 * Copyright 2001 MontaVista Software Inc.
15 * Author: jsun@mvista.com or jsun@junsun.net
16 *
17 * Copyright 2002 MontaVista Software Inc.
18 * Author: Michael Pruznick, michael_pruznick@mvista.com
19 *
20 * Copyright (C) 2000-2001 Toshiba Corporation
21 *
22 * Copyright (C) 2004 MontaVista Software Inc.
23 * Author: Manish Lachwani, mlachwani@mvista.com
24 *
25 * This program is free software; you can redistribute it and/or modify it
26 * under the terms of the GNU General Public License as published by the
27 * Free Software Foundation; either version 2 of the License, or (at your
28 * option) any later version.
29 *
30 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
31 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
32 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
35 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
36 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
37 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
38 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
39 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * You should have received a copy of the GNU General Public License along
42 * with this program; if not, write to the Free Software Foundation, Inc.,
43 * 675 Mass Ave, Cambridge, MA 02139, USA.
44 */
45 #include <linux/init.h>
46 #include <linux/kernel.h>
47 #include <linux/types.h>
48 #include <linux/mm.h>
49 #include <linux/swap.h>
50 #include <linux/ioport.h>
51 #include <linux/sched.h>
52 #include <linux/interrupt.h>
53 #include <linux/pci.h>
54 #include <linux/timex.h>
55 #include <linux/pm.h>
56 #include <linux/platform_device.h>
57
58 #include <asm/bootinfo.h>
59 #include <asm/page.h>
60 #include <asm/io.h>
61 #include <asm/irq.h>
62 #include <asm/irq_regs.h>
63 #include <asm/processor.h>
64 #include <asm/reboot.h>
65 #include <asm/time.h>
66 #include <linux/bootmem.h>
67 #include <linux/blkdev.h>
68 #ifdef CONFIG_TOSHIBA_FPCIB0
69 #include <asm/tx4927/smsc_fdc37m81x.h>
70 #endif
71 #include <asm/tx4927/toshiba_rbtx4927.h>
72 #ifdef CONFIG_PCI
73 #include <asm/tx4927/tx4927_pci.h>
74 #endif
75 #ifdef CONFIG_BLK_DEV_IDEPCI
76 #include <linux/hdreg.h>
77 #include <linux/ide.h>
78 #endif
79 #ifdef CONFIG_SERIAL_TXX9
80 #include <linux/tty.h>
81 #include <linux/serial.h>
82 #include <linux/serial_core.h>
83 #endif
84
85 #undef TOSHIBA_RBTX4927_SETUP_DEBUG
86
87 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
88 #define TOSHIBA_RBTX4927_SETUP_NONE 0x00000000
89
90 #define TOSHIBA_RBTX4927_SETUP_INFO ( 1 << 0 )
91 #define TOSHIBA_RBTX4927_SETUP_WARN ( 1 << 1 )
92 #define TOSHIBA_RBTX4927_SETUP_EROR ( 1 << 2 )
93
94 #define TOSHIBA_RBTX4927_SETUP_EFWFU ( 1 << 3 )
95 #define TOSHIBA_RBTX4927_SETUP_SETUP ( 1 << 4 )
96 #define TOSHIBA_RBTX4927_SETUP_TIME_INIT ( 1 << 5 )
97 #define TOSHIBA_RBTX4927_SETUP_TIMER_SETUP ( 1 << 6 )
98 #define TOSHIBA_RBTX4927_SETUP_PCIBIOS ( 1 << 7 )
99 #define TOSHIBA_RBTX4927_SETUP_PCI1 ( 1 << 8 )
100 #define TOSHIBA_RBTX4927_SETUP_PCI2 ( 1 << 9 )
101 #define TOSHIBA_RBTX4927_SETUP_PCI66 ( 1 << 10 )
102
103 #define TOSHIBA_RBTX4927_SETUP_ALL 0xffffffff
104 #endif
105
106 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
107 static const u32 toshiba_rbtx4927_setup_debug_flag =
108 (TOSHIBA_RBTX4927_SETUP_NONE | TOSHIBA_RBTX4927_SETUP_INFO |
109 TOSHIBA_RBTX4927_SETUP_WARN | TOSHIBA_RBTX4927_SETUP_EROR |
110 TOSHIBA_RBTX4927_SETUP_EFWFU | TOSHIBA_RBTX4927_SETUP_SETUP |
111 TOSHIBA_RBTX4927_SETUP_TIME_INIT | TOSHIBA_RBTX4927_SETUP_TIMER_SETUP
112 | TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
113 TOSHIBA_RBTX4927_SETUP_PCI2 | TOSHIBA_RBTX4927_SETUP_PCI66);
114 #endif
115
116 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
117 #define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...) \
118 if ( (toshiba_rbtx4927_setup_debug_flag) & (flag) ) \
119 { \
120 char tmp[100]; \
121 sprintf( tmp, str ); \
122 printk( "%s(%s:%u)::%s", __FUNCTION__, __FILE__, __LINE__, tmp ); \
123 }
124 #else
125 #define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...)
126 #endif
127
128 /* These functions are used for rebooting or halting the machine*/
129 extern void toshiba_rbtx4927_restart(char *command);
130 extern void toshiba_rbtx4927_halt(void);
131 extern void toshiba_rbtx4927_power_off(void);
132
133 int tx4927_using_backplane = 0;
134
135 extern void gt64120_time_init(void);
136 extern void toshiba_rbtx4927_irq_setup(void);
137
138 char *prom_getcmdline(void);
139
140 #ifdef CONFIG_PCI
141 #define CONFIG_TX4927BUG_WORKAROUND
142 #undef TX4927_SUPPORT_COMMAND_IO
143 #undef TX4927_SUPPORT_PCI_66
144 int tx4927_cpu_clock = 100000000; /* 100MHz */
145 unsigned long mips_pci_io_base;
146 unsigned long mips_pci_io_size;
147 unsigned long mips_pci_mem_base;
148 unsigned long mips_pci_mem_size;
149 /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
150 unsigned long mips_pci_io_pciaddr = 0;
151 unsigned long mips_memory_upper;
152 static int tx4927_ccfg_toeon = 1;
153 static int tx4927_pcic_trdyto = 0; /* default: disabled */
154 unsigned long tx4927_ce_base[8];
155 void tx4927_pci_setup(void);
156 void tx4927_reset_pci_pcic(void);
157 int tx4927_pci66 = 0; /* 0:auto */
158 #endif
159
160 char *toshiba_name = "";
161
162 #ifdef CONFIG_PCI
163 static void tx4927_pcierr_interrupt(int irq, void *dev_id)
164 {
165 #ifdef CONFIG_BLK_DEV_IDEPCI
166 /* ignore MasterAbort for ide probing... */
167 if (irq == TX4927_IRQ_IRC_PCIERR &&
168 ((tx4927_pcicptr->pcistatus >> 16) & 0xf900) ==
169 PCI_STATUS_REC_MASTER_ABORT) {
170 tx4927_pcicptr->pcistatus =
171 (tx4927_pcicptr->
172 pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
173 << 16);
174
175 return;
176 }
177 #endif
178 printk("PCI error interrupt (irq 0x%x).\n", irq);
179
180 printk("pcistat:%04x, g2pstatus:%08lx, pcicstatus:%08lx\n",
181 (unsigned short) (tx4927_pcicptr->pcistatus >> 16),
182 tx4927_pcicptr->g2pstatus, tx4927_pcicptr->pcicstatus);
183 printk("ccfg:%08lx, tear:%02lx_%08lx\n",
184 (unsigned long) tx4927_ccfgptr->ccfg,
185 (unsigned long) (tx4927_ccfgptr->tear >> 32),
186 (unsigned long) tx4927_ccfgptr->tear);
187 show_regs(get_irq_regs());
188 }
189
190 void __init toshiba_rbtx4927_pci_irq_init(void)
191 {
192 return;
193 }
194
195 void tx4927_reset_pci_pcic(void)
196 {
197 /* Reset PCI Bus */
198 *tx4927_pcireset_ptr = 1;
199 /* Reset PCIC */
200 tx4927_ccfgptr->clkctr |= TX4927_CLKCTR_PCIRST;
201 udelay(10000);
202 /* clear PCIC reset */
203 tx4927_ccfgptr->clkctr &= ~TX4927_CLKCTR_PCIRST;
204 *tx4927_pcireset_ptr = 0;
205 }
206 #endif /* CONFIG_PCI */
207
208 #ifdef CONFIG_PCI
209 void print_pci_status(void)
210 {
211 printk("PCI STATUS %lx\n", tx4927_pcicptr->pcistatus);
212 printk("PCIC STATUS %lx\n", tx4927_pcicptr->pcicstatus);
213 }
214
215 extern struct pci_controller tx4927_controller;
216
217 static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
218 int top_bus, int busnr, int devfn)
219 {
220 static struct pci_dev dev;
221 static struct pci_bus bus;
222
223 dev.sysdata = (void *)hose;
224 dev.devfn = devfn;
225 bus.number = busnr;
226 bus.ops = hose->pci_ops;
227 bus.parent = NULL;
228 dev.bus = &bus;
229
230 return &dev;
231 }
232
233 #define EARLY_PCI_OP(rw, size, type) \
234 static int early_##rw##_config_##size(struct pci_controller *hose, \
235 int top_bus, int bus, int devfn, int offset, type value) \
236 { \
237 return pci_##rw##_config_##size( \
238 fake_pci_dev(hose, top_bus, bus, devfn), \
239 offset, value); \
240 }
241
242 EARLY_PCI_OP(read, byte, u8 *)
243 EARLY_PCI_OP(read, word, u16 *)
244 EARLY_PCI_OP(read, dword, u32 *)
245 EARLY_PCI_OP(write, byte, u8)
246 EARLY_PCI_OP(write, word, u16)
247 EARLY_PCI_OP(write, dword, u32)
248
249 static int __init tx4927_pcibios_init(void)
250 {
251 unsigned int id;
252 u32 pci_devfn;
253 int devfn_start = 0;
254 int devfn_stop = 0xff;
255 int busno = 0; /* One bus on the Toshiba */
256 struct pci_controller *hose = &tx4927_controller;
257
258 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
259 "-\n");
260
261 for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
262 early_read_config_dword(hose, busno, busno, pci_devfn,
263 PCI_VENDOR_ID, &id);
264
265 if (id == 0xffffffff) {
266 continue;
267 }
268
269 if (id == 0x94601055) {
270 u8 v08_64;
271 u32 v32_b0;
272 u8 v08_e1;
273 char *s = " sb/isa --";
274
275 TOSHIBA_RBTX4927_SETUP_DPRINTK
276 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
277 s);
278
279 early_read_config_byte(hose, busno, busno,
280 pci_devfn, 0x64, &v08_64);
281 early_read_config_dword(hose, busno, busno,
282 pci_devfn, 0xb0, &v32_b0);
283 early_read_config_byte(hose, busno, busno,
284 pci_devfn, 0xe1, &v08_e1);
285
286 TOSHIBA_RBTX4927_SETUP_DPRINTK
287 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
288 ":%s beg 0x64 = 0x%02x\n", s, v08_64);
289 TOSHIBA_RBTX4927_SETUP_DPRINTK
290 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
291 ":%s beg 0xb0 = 0x%02x\n", s, v32_b0);
292 TOSHIBA_RBTX4927_SETUP_DPRINTK
293 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
294 ":%s beg 0xe1 = 0x%02x\n", s, v08_e1);
295
296 /* serial irq control */
297 v08_64 = 0xd0;
298
299 /* serial irq pin */
300 v32_b0 |= 0x00010000;
301
302 /* ide irq on isa14 */
303 v08_e1 &= 0xf0;
304 v08_e1 |= 0x0d;
305
306 TOSHIBA_RBTX4927_SETUP_DPRINTK
307 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
308 ":%s mid 0x64 = 0x%02x\n", s, v08_64);
309 TOSHIBA_RBTX4927_SETUP_DPRINTK
310 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
311 ":%s mid 0xb0 = 0x%02x\n", s, v32_b0);
312 TOSHIBA_RBTX4927_SETUP_DPRINTK
313 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
314 ":%s mid 0xe1 = 0x%02x\n", s, v08_e1);
315
316 early_write_config_byte(hose, busno, busno,
317 pci_devfn, 0x64, v08_64);
318 early_write_config_dword(hose, busno, busno,
319 pci_devfn, 0xb0, v32_b0);
320 early_write_config_byte(hose, busno, busno,
321 pci_devfn, 0xe1, v08_e1);
322
323 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
324 {
325 early_read_config_byte(hose, busno, busno,
326 pci_devfn, 0x64,
327 &v08_64);
328 early_read_config_dword(hose, busno, busno,
329 pci_devfn, 0xb0,
330 &v32_b0);
331 early_read_config_byte(hose, busno, busno,
332 pci_devfn, 0xe1,
333 &v08_e1);
334
335 TOSHIBA_RBTX4927_SETUP_DPRINTK
336 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
337 ":%s end 0x64 = 0x%02x\n", s, v08_64);
338 TOSHIBA_RBTX4927_SETUP_DPRINTK
339 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
340 ":%s end 0xb0 = 0x%02x\n", s, v32_b0);
341 TOSHIBA_RBTX4927_SETUP_DPRINTK
342 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
343 ":%s end 0xe1 = 0x%02x\n", s, v08_e1);
344 }
345 #endif
346
347 TOSHIBA_RBTX4927_SETUP_DPRINTK
348 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
349 s);
350 }
351
352 if (id == 0x91301055) {
353 u8 v08_04;
354 u8 v08_09;
355 u8 v08_41;
356 u8 v08_43;
357 u8 v08_5c;
358 char *s = " sb/ide --";
359
360 TOSHIBA_RBTX4927_SETUP_DPRINTK
361 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
362 s);
363
364 early_read_config_byte(hose, busno, busno,
365 pci_devfn, 0x04, &v08_04);
366 early_read_config_byte(hose, busno, busno,
367 pci_devfn, 0x09, &v08_09);
368 early_read_config_byte(hose, busno, busno,
369 pci_devfn, 0x41, &v08_41);
370 early_read_config_byte(hose, busno, busno,
371 pci_devfn, 0x43, &v08_43);
372 early_read_config_byte(hose, busno, busno,
373 pci_devfn, 0x5c, &v08_5c);
374
375 TOSHIBA_RBTX4927_SETUP_DPRINTK
376 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
377 ":%s beg 0x04 = 0x%02x\n", s, v08_04);
378 TOSHIBA_RBTX4927_SETUP_DPRINTK
379 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
380 ":%s beg 0x09 = 0x%02x\n", s, v08_09);
381 TOSHIBA_RBTX4927_SETUP_DPRINTK
382 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
383 ":%s beg 0x41 = 0x%02x\n", s, v08_41);
384 TOSHIBA_RBTX4927_SETUP_DPRINTK
385 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
386 ":%s beg 0x43 = 0x%02x\n", s, v08_43);
387 TOSHIBA_RBTX4927_SETUP_DPRINTK
388 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
389 ":%s beg 0x5c = 0x%02x\n", s, v08_5c);
390
391 /* enable ide master/io */
392 v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
393
394 /* enable ide native mode */
395 v08_09 |= 0x05;
396
397 /* enable primary ide */
398 v08_41 |= 0x80;
399
400 /* enable secondary ide */
401 v08_43 |= 0x80;
402
403 /*
404 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
405 *
406 * This line of code is intended to provide the user with a work
407 * around solution to the anomalies cited in SMSC's anomaly sheet
408 * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
409 *
410 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
411 */
412 v08_5c |= 0x01;
413
414 TOSHIBA_RBTX4927_SETUP_DPRINTK
415 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
416 ":%s mid 0x04 = 0x%02x\n", s, v08_04);
417 TOSHIBA_RBTX4927_SETUP_DPRINTK
418 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
419 ":%s mid 0x09 = 0x%02x\n", s, v08_09);
420 TOSHIBA_RBTX4927_SETUP_DPRINTK
421 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
422 ":%s mid 0x41 = 0x%02x\n", s, v08_41);
423 TOSHIBA_RBTX4927_SETUP_DPRINTK
424 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
425 ":%s mid 0x43 = 0x%02x\n", s, v08_43);
426 TOSHIBA_RBTX4927_SETUP_DPRINTK
427 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
428 ":%s mid 0x5c = 0x%02x\n", s, v08_5c);
429
430 early_write_config_byte(hose, busno, busno,
431 pci_devfn, 0x5c, v08_5c);
432 early_write_config_byte(hose, busno, busno,
433 pci_devfn, 0x04, v08_04);
434 early_write_config_byte(hose, busno, busno,
435 pci_devfn, 0x09, v08_09);
436 early_write_config_byte(hose, busno, busno,
437 pci_devfn, 0x41, v08_41);
438 early_write_config_byte(hose, busno, busno,
439 pci_devfn, 0x43, v08_43);
440
441 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
442 {
443 early_read_config_byte(hose, busno, busno,
444 pci_devfn, 0x04,
445 &v08_04);
446 early_read_config_byte(hose, busno, busno,
447 pci_devfn, 0x09,
448 &v08_09);
449 early_read_config_byte(hose, busno, busno,
450 pci_devfn, 0x41,
451 &v08_41);
452 early_read_config_byte(hose, busno, busno,
453 pci_devfn, 0x43,
454 &v08_43);
455 early_read_config_byte(hose, busno, busno,
456 pci_devfn, 0x5c,
457 &v08_5c);
458
459 TOSHIBA_RBTX4927_SETUP_DPRINTK
460 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
461 ":%s end 0x04 = 0x%02x\n", s, v08_04);
462 TOSHIBA_RBTX4927_SETUP_DPRINTK
463 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
464 ":%s end 0x09 = 0x%02x\n", s, v08_09);
465 TOSHIBA_RBTX4927_SETUP_DPRINTK
466 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
467 ":%s end 0x41 = 0x%02x\n", s, v08_41);
468 TOSHIBA_RBTX4927_SETUP_DPRINTK
469 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
470 ":%s end 0x43 = 0x%02x\n", s, v08_43);
471 TOSHIBA_RBTX4927_SETUP_DPRINTK
472 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
473 ":%s end 0x5c = 0x%02x\n", s, v08_5c);
474 }
475 #endif
476
477 TOSHIBA_RBTX4927_SETUP_DPRINTK
478 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
479 s);
480 }
481
482 }
483
484 register_pci_controller(&tx4927_controller);
485 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
486 "+\n");
487
488 return 0;
489 }
490
491 arch_initcall(tx4927_pcibios_init);
492
493 extern struct resource pci_io_resource;
494 extern struct resource pci_mem_resource;
495
496 void tx4927_pci_setup(void)
497 {
498 static int called = 0;
499 extern unsigned int tx4927_get_mem_size(void);
500
501 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "-\n");
502
503 mips_memory_upper = tx4927_get_mem_size() << 20;
504 mips_memory_upper += KSEG0;
505 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
506 "0x%08lx=mips_memory_upper\n",
507 mips_memory_upper);
508 mips_pci_io_base = TX4927_PCIIO;
509 mips_pci_io_size = TX4927_PCIIO_SIZE;
510 mips_pci_mem_base = TX4927_PCIMEM;
511 mips_pci_mem_size = TX4927_PCIMEM_SIZE;
512
513 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
514 "0x%08lx=mips_pci_io_base\n",
515 mips_pci_io_base);
516 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
517 "0x%08lx=mips_pci_io_size\n",
518 mips_pci_io_size);
519 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
520 "0x%08lx=mips_pci_mem_base\n",
521 mips_pci_mem_base);
522 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
523 "0x%08lx=mips_pci_mem_size\n",
524 mips_pci_mem_size);
525 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
526 "0x%08lx=pci_io_resource.start\n",
527 pci_io_resource.start);
528 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
529 "0x%08lx=pci_io_resource.end\n",
530 pci_io_resource.end);
531 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
532 "0x%08lx=pci_mem_resource.start\n",
533 pci_mem_resource.start);
534 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
535 "0x%08lx=pci_mem_resource.end\n",
536 pci_mem_resource.end);
537 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
538 "0x%08lx=mips_io_port_base",
539 mips_io_port_base);
540 if (!called) {
541 printk
542 ("%s PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
543 toshiba_name,
544 (unsigned short) (tx4927_pcicptr->pciid >> 16),
545 (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
546 (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
547 (!(tx4927_ccfgptr->
548 ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
549 "Internal");
550 called = 1;
551 }
552 printk("%s PCIC --%s PCICLK:",toshiba_name,
553 (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
554 if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
555 int pciclk = 0;
556 if (mips_machtype == MACH_TOSHIBA_RBTX4937)
557 switch ((unsigned long) tx4927_ccfgptr->
558 ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
559 case TX4937_CCFG_PCIDIVMODE_4:
560 pciclk = tx4927_cpu_clock / 4;
561 break;
562 case TX4937_CCFG_PCIDIVMODE_4_5:
563 pciclk = tx4927_cpu_clock * 2 / 9;
564 break;
565 case TX4937_CCFG_PCIDIVMODE_5:
566 pciclk = tx4927_cpu_clock / 5;
567 break;
568 case TX4937_CCFG_PCIDIVMODE_5_5:
569 pciclk = tx4927_cpu_clock * 2 / 11;
570 break;
571 case TX4937_CCFG_PCIDIVMODE_8:
572 pciclk = tx4927_cpu_clock / 8;
573 break;
574 case TX4937_CCFG_PCIDIVMODE_9:
575 pciclk = tx4927_cpu_clock / 9;
576 break;
577 case TX4937_CCFG_PCIDIVMODE_10:
578 pciclk = tx4927_cpu_clock / 10;
579 break;
580 case TX4937_CCFG_PCIDIVMODE_11:
581 pciclk = tx4927_cpu_clock / 11;
582 break;
583 }
584
585 else
586 switch ((unsigned long) tx4927_ccfgptr->
587 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
588 case TX4927_CCFG_PCIDIVMODE_2_5:
589 pciclk = tx4927_cpu_clock * 2 / 5;
590 break;
591 case TX4927_CCFG_PCIDIVMODE_3:
592 pciclk = tx4927_cpu_clock / 3;
593 break;
594 case TX4927_CCFG_PCIDIVMODE_5:
595 pciclk = tx4927_cpu_clock / 5;
596 break;
597 case TX4927_CCFG_PCIDIVMODE_6:
598 pciclk = tx4927_cpu_clock / 6;
599 break;
600 }
601
602 printk("Internal(%dMHz)", pciclk / 1000000);
603 } else {
604 int pciclk = 0;
605 int pciclk_setting = *tx4927_pci_clk_ptr;
606 switch (pciclk_setting & TX4927_PCI_CLK_MASK) {
607 case TX4927_PCI_CLK_33:
608 pciclk = 33333333;
609 break;
610 case TX4927_PCI_CLK_25:
611 pciclk = 25000000;
612 break;
613 case TX4927_PCI_CLK_66:
614 pciclk = 66666666;
615 break;
616 case TX4927_PCI_CLK_50:
617 pciclk = 50000000;
618 break;
619 }
620 printk("External(%dMHz)", pciclk / 1000000);
621 }
622 printk("\n");
623
624
625
626 /* GB->PCI mappings */
627 tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
628 tx4927_pcicptr->g2piogbase = mips_pci_io_base |
629 #ifdef __BIG_ENDIAN
630 TX4927_PCIC_G2PIOGBASE_ECHG
631 #else
632 TX4927_PCIC_G2PIOGBASE_BSDIS
633 #endif
634 ;
635
636 tx4927_pcicptr->g2piopbase = 0;
637
638 tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
639 tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
640 #ifdef __BIG_ENDIAN
641 TX4927_PCIC_G2PMnGBASE_ECHG
642 #else
643 TX4927_PCIC_G2PMnGBASE_BSDIS
644 #endif
645 ;
646 tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
647
648 tx4927_pcicptr->g2pmmask[1] = 0;
649 tx4927_pcicptr->g2pmgbase[1] = 0;
650 tx4927_pcicptr->g2pmpbase[1] = 0;
651 tx4927_pcicptr->g2pmmask[2] = 0;
652 tx4927_pcicptr->g2pmgbase[2] = 0;
653 tx4927_pcicptr->g2pmpbase[2] = 0;
654
655
656 /* PCI->GB mappings (I/O 256B) */
657 tx4927_pcicptr->p2giopbase = 0; /* 256B */
658
659 /* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
660 tx4927_pcicptr->p2gm0plbase = 0;
661 tx4927_pcicptr->p2gm0pubase = 0;
662 tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
663 #ifdef __BIG_ENDIAN
664 TX4927_PCIC_P2GMnGBASE_TECHG
665 #else
666 TX4927_PCIC_P2GMnGBASE_TBSDIS
667 #endif
668 ;
669
670 /* PCI->GB mappings (MEM 16MB) -not used */
671 tx4927_pcicptr->p2gm1plbase = 0xffffffff;
672 #ifdef CONFIG_TX4927BUG_WORKAROUND
673 /*
674 * TX4927-PCIC-BUG: P2GM1PUBASE must be 0
675 * if P2GM0PUBASE was 0.
676 */
677 tx4927_pcicptr->p2gm1pubase = 0;
678 #else
679 tx4927_pcicptr->p2gm1pubase = 0xffffffff;
680 #endif
681 tx4927_pcicptr->p2gmgbase[1] = 0;
682
683 /* PCI->GB mappings (MEM 1MB) -not used */
684 tx4927_pcicptr->p2gm2pbase = 0xffffffff;
685 tx4927_pcicptr->p2gmgbase[2] = 0;
686
687
688 /* Enable Initiator Memory 0 Space, I/O Space, Config */
689 tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
690 tx4927_pcicptr->pciccfg |=
691 TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
692 TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
693
694
695 /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
696 tx4927_pcicptr->pcicfg1 = 0;
697
698 if (tx4927_pcic_trdyto >= 0) {
699 tx4927_pcicptr->g2ptocnt &= ~0xff;
700 tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
701 }
702
703 /* Clear All Local Bus Status */
704 tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
705 /* Enable All Local Bus Interrupts */
706 tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
707 /* Clear All Initiator Status */
708 tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
709 /* Enable All Initiator Interrupts */
710 tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
711 /* Clear All PCI Status Error */
712 tx4927_pcicptr->pcistatus =
713 (tx4927_pcicptr->pcistatus & 0x0000ffff) |
714 (TX4927_PCIC_PCISTATUS_ALL << 16);
715 /* Enable All PCI Status Error Interrupts */
716 tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
717
718 /* PCIC Int => IRC IRQ16 */
719 tx4927_pcicptr->pcicfg2 =
720 (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
721
722 if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
723 /* XXX */
724 } else {
725 /* Reset Bus Arbiter */
726 tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
727 /* Enable Bus Arbiter */
728 tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
729 }
730
731 tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
732 PCI_COMMAND_MEMORY |
733 PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
734
735 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
736 ":pci setup complete:\n");
737 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "+\n");
738 }
739
740 #endif /* CONFIG_PCI */
741
742 void toshiba_rbtx4927_restart(char *command)
743 {
744 printk(KERN_NOTICE "System Rebooting...\n");
745
746 /* enable the s/w reset register */
747 reg_wr08(RBTX4927_SW_RESET_ENABLE, RBTX4927_SW_RESET_ENABLE_SET);
748
749 /* wait for enable to be seen */
750 while ((reg_rd08(RBTX4927_SW_RESET_ENABLE) &
751 RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
752
753 /* do a s/w reset */
754 reg_wr08(RBTX4927_SW_RESET_DO, RBTX4927_SW_RESET_DO_SET);
755
756 /* do something passive while waiting for reset */
757 local_irq_disable();
758 while (1)
759 asm_wait();
760
761 /* no return */
762 }
763
764
765 void toshiba_rbtx4927_halt(void)
766 {
767 printk(KERN_NOTICE "System Halted\n");
768 local_irq_disable();
769 while (1) {
770 asm_wait();
771 }
772 /* no return */
773 }
774
775 void toshiba_rbtx4927_power_off(void)
776 {
777 toshiba_rbtx4927_halt();
778 /* no return */
779 }
780
781 void __init toshiba_rbtx4927_setup(void)
782 {
783 vu32 cp0_config;
784 char *argptr;
785
786 printk("CPU is %s\n", toshiba_name);
787
788 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
789 "-\n");
790
791 /* f/w leaves this on at startup */
792 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
793 ":Clearing STO_ERL.\n");
794 clear_c0_status(ST0_ERL);
795
796 /* enable caches -- HCP5 does this, pmon does not */
797 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
798 ":Enabling TX49_CONF_IC,TX49_CONF_DC.\n");
799 cp0_config = read_c0_config();
800 cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
801 write_c0_config(cp0_config);
802
803 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
804 {
805 extern void dump_cp0(char *);
806 dump_cp0("toshiba_rbtx4927_early_fw_fixup");
807 }
808 #endif
809
810 /* setup irq stuff */
811 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
812 ":Setting up tx4927 pic.\n");
813 TX4927_WR(0xff1ff604, 0x00000400); /* irq trigger */
814 TX4927_WR(0xff1ff608, 0x00000000); /* irq trigger */
815
816 /* setup serial stuff */
817 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
818 ":Setting up tx4927 sio.\n");
819 TX4927_WR(0xff1ff314, 0x00000000); /* h/w flow control off */
820 TX4927_WR(0xff1ff414, 0x00000000); /* h/w flow control off */
821
822 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
823 "+\n");
824
825 set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
826 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
827 ":mips_io_port_base=0x%08lx\n",
828 mips_io_port_base);
829
830 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
831 ":Resource\n");
832 ioport_resource.end = 0xffffffff;
833 iomem_resource.end = 0xffffffff;
834
835 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
836 ":ResetRoutines\n");
837 _machine_restart = toshiba_rbtx4927_restart;
838 _machine_halt = toshiba_rbtx4927_halt;
839 pm_power_off = toshiba_rbtx4927_power_off;
840
841 #ifdef CONFIG_PCI
842
843 /* PCIC */
844 /*
845 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
846 *
847 * For TX4927:
848 * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
849 * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
850 * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
851 * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
852 * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
853 * i.e. S9[3]: ON (83MHz), OFF (100MHz)
854 *
855 * For TX4937:
856 * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
857 * PCIDIVMODE[10] is 0.
858 * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
859 * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
860 * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
861 * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
862 * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
863 * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
864 *
865 */
866 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
867 "ccfg is %lx, PCIDIVMODE is %x\n",
868 (unsigned long) tx4927_ccfgptr->ccfg,
869 (unsigned long) tx4927_ccfgptr->ccfg &
870 (mips_machtype == MACH_TOSHIBA_RBTX4937 ?
871 TX4937_CCFG_PCIDIVMODE_MASK :
872 TX4927_CCFG_PCIDIVMODE_MASK));
873
874 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
875 "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
876 (unsigned long) tx4927_ccfgptr->
877 ccfg & TX4927_CCFG_PCI66,
878 (unsigned long) tx4927_ccfgptr->
879 ccfg & TX4927_CCFG_PCIMIDE,
880 (unsigned long) tx4927_ccfgptr->
881 ccfg & TX4927_CCFG_PCIXARB);
882
883 if (mips_machtype == MACH_TOSHIBA_RBTX4937)
884 switch ((unsigned long)tx4927_ccfgptr->
885 ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
886 case TX4937_CCFG_PCIDIVMODE_8:
887 case TX4937_CCFG_PCIDIVMODE_4:
888 tx4927_cpu_clock = 266666666; /* 266MHz */
889 break;
890 case TX4937_CCFG_PCIDIVMODE_9:
891 case TX4937_CCFG_PCIDIVMODE_4_5:
892 tx4927_cpu_clock = 300000000; /* 300MHz */
893 break;
894 default:
895 tx4927_cpu_clock = 333333333; /* 333MHz */
896 }
897 else
898 switch ((unsigned long)tx4927_ccfgptr->
899 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
900 case TX4927_CCFG_PCIDIVMODE_2_5:
901 case TX4927_CCFG_PCIDIVMODE_5:
902 tx4927_cpu_clock = 166666666; /* 166MHz */
903 break;
904 default:
905 tx4927_cpu_clock = 200000000; /* 200MHz */
906 }
907
908 /* CCFG */
909 /* enable Timeout BusError */
910 if (tx4927_ccfg_toeon)
911 tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
912
913 /* SDRAMC fixup */
914 #ifdef CONFIG_TX4927BUG_WORKAROUND
915 /*
916 * TX4927-BUG: INF 01-01-18/ BUG 01-01-22
917 * G-bus timeout error detection is incorrect
918 */
919 if (tx4927_ccfg_toeon)
920 tx4927_sdramcptr->tr |= 0x02000000; /* RCD:3tck */
921 #endif
922
923 tx4927_pci_setup();
924 if (tx4927_using_backplane == 1)
925 printk("backplane board IS installed\n");
926 else
927 printk("No Backplane \n");
928
929 /* this is on ISA bus behind PCI bus, so need PCI up first */
930 #ifdef CONFIG_TOSHIBA_FPCIB0
931 {
932 if (tx4927_using_backplane) {
933 TOSHIBA_RBTX4927_SETUP_DPRINTK
934 (TOSHIBA_RBTX4927_SETUP_SETUP,
935 ":fpcibo=yes\n");
936
937 TOSHIBA_RBTX4927_SETUP_DPRINTK
938 (TOSHIBA_RBTX4927_SETUP_SETUP,
939 ":smsc_fdc37m81x_init()\n");
940 smsc_fdc37m81x_init(0x3f0);
941
942 TOSHIBA_RBTX4927_SETUP_DPRINTK
943 (TOSHIBA_RBTX4927_SETUP_SETUP,
944 ":smsc_fdc37m81x_config_beg()\n");
945 smsc_fdc37m81x_config_beg();
946
947 TOSHIBA_RBTX4927_SETUP_DPRINTK
948 (TOSHIBA_RBTX4927_SETUP_SETUP,
949 ":smsc_fdc37m81x_config_set(KBD)\n");
950 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
951 SMSC_FDC37M81X_KBD);
952 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
953 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
954 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
955 1);
956
957 smsc_fdc37m81x_config_end();
958 TOSHIBA_RBTX4927_SETUP_DPRINTK
959 (TOSHIBA_RBTX4927_SETUP_SETUP,
960 ":smsc_fdc37m81x_config_end()\n");
961 } else {
962 TOSHIBA_RBTX4927_SETUP_DPRINTK
963 (TOSHIBA_RBTX4927_SETUP_SETUP,
964 ":fpcibo=not_found\n");
965 }
966 }
967 #else
968 {
969 TOSHIBA_RBTX4927_SETUP_DPRINTK
970 (TOSHIBA_RBTX4927_SETUP_SETUP, ":fpcibo=no\n");
971 }
972 #endif
973
974 #endif /* CONFIG_PCI */
975
976 #ifdef CONFIG_SERIAL_TXX9
977 {
978 extern int early_serial_txx9_setup(struct uart_port *port);
979 int i;
980 struct uart_port req;
981 for(i = 0; i < 2; i++) {
982 memset(&req, 0, sizeof(req));
983 req.line = i;
984 req.iotype = UPIO_MEM;
985 req.membase = (char *)(0xff1ff300 + i * 0x100);
986 req.mapbase = 0xff1ff300 + i * 0x100;
987 req.irq = 32 + i;
988 req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
989 req.uartclk = 50000000;
990 early_serial_txx9_setup(&req);
991 }
992 }
993 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
994 argptr = prom_getcmdline();
995 if (strstr(argptr, "console=") == NULL) {
996 strcat(argptr, " console=ttyS0,38400");
997 }
998 #endif
999 #endif
1000
1001 #ifdef CONFIG_ROOT_NFS
1002 argptr = prom_getcmdline();
1003 if (strstr(argptr, "root=") == NULL) {
1004 strcat(argptr, " root=/dev/nfs rw");
1005 }
1006 #endif
1007
1008
1009 #ifdef CONFIG_IP_PNP
1010 argptr = prom_getcmdline();
1011 if (strstr(argptr, "ip=") == NULL) {
1012 strcat(argptr, " ip=any");
1013 }
1014 #endif
1015
1016
1017 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
1018 "+\n");
1019 }
1020
1021 void __init
1022 toshiba_rbtx4927_time_init(void)
1023 {
1024 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
1025
1026 mips_hpt_frequency = tx4927_cpu_clock / 2;
1027
1028 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
1029
1030 }
1031
1032 void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq)
1033 {
1034 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
1035 "-\n");
1036 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
1037 "+\n");
1038 }
1039
1040 static int __init toshiba_rbtx4927_rtc_init(void)
1041 {
1042 struct resource res = {
1043 .start = 0x1c010000,
1044 .end = 0x1c010000 + 0x800 - 1,
1045 .flags = IORESOURCE_MEM,
1046 };
1047 struct platform_device *dev =
1048 platform_device_register_simple("ds1742", -1, &res, 1);
1049 return IS_ERR(dev) ? PTR_ERR(dev) : 0;
1050 }
1051 device_initcall(toshiba_rbtx4927_rtc_init);
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