Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / mips / tx4927 / toshiba_rbtx4927 / toshiba_rbtx4927_setup.c
blob8724ea3ae04eff263e10146af7c50b7f464c38e6
1 /*
2 * Toshiba rbtx4927 specific setup
4 * Author: MontaVista Software, Inc.
5 * source@mvista.com
7 * Copyright 2001-2002 MontaVista Software Inc.
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
14 * Copyright 2001 MontaVista Software Inc.
15 * Author: jsun@mvista.com or jsun@junsun.net
17 * Copyright 2002 MontaVista Software Inc.
18 * Author: Michael Pruznick, michael_pruznick@mvista.com
20 * Copyright (C) 2000-2001 Toshiba Corporation
22 * Copyright (C) 2004 MontaVista Software Inc.
23 * Author: Manish Lachwani, mlachwani@mvista.com
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.
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.
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.
45 #include <linux/config.h>
46 #include <linux/init.h>
47 #include <linux/kernel.h>
48 #include <linux/types.h>
49 #include <linux/mm.h>
50 #include <linux/swap.h>
51 #include <linux/ioport.h>
52 #include <linux/sched.h>
53 #include <linux/interrupt.h>
54 #include <linux/pci.h>
55 #include <linux/timex.h>
56 #include <asm/bootinfo.h>
57 #include <asm/page.h>
58 #include <asm/io.h>
59 #include <asm/irq.h>
60 #include <asm/processor.h>
61 #include <asm/ptrace.h>
62 #include <asm/reboot.h>
63 #include <asm/time.h>
64 #include <linux/bootmem.h>
65 #include <linux/blkdev.h>
66 #ifdef CONFIG_RTC_DS1742
67 #include <linux/ds1742rtc.h>
68 #endif
69 #ifdef CONFIG_TOSHIBA_FPCIB0
70 #include <asm/tx4927/smsc_fdc37m81x.h>
71 #endif
72 #include <asm/tx4927/toshiba_rbtx4927.h>
73 #ifdef CONFIG_PCI
74 #include <asm/tx4927/tx4927_pci.h>
75 #endif
76 #ifdef CONFIG_BLK_DEV_IDEPCI
77 #include <linux/hdreg.h>
78 #include <linux/ide.h>
79 #endif
81 #undef TOSHIBA_RBTX4927_SETUP_DEBUG
83 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
84 #define TOSHIBA_RBTX4927_SETUP_NONE 0x00000000
86 #define TOSHIBA_RBTX4927_SETUP_INFO ( 1 << 0 )
87 #define TOSHIBA_RBTX4927_SETUP_WARN ( 1 << 1 )
88 #define TOSHIBA_RBTX4927_SETUP_EROR ( 1 << 2 )
90 #define TOSHIBA_RBTX4927_SETUP_EFWFU ( 1 << 3 )
91 #define TOSHIBA_RBTX4927_SETUP_SETUP ( 1 << 4 )
92 #define TOSHIBA_RBTX4927_SETUP_TIME_INIT ( 1 << 5 )
93 #define TOSHIBA_RBTX4927_SETUP_TIMER_SETUP ( 1 << 6 )
94 #define TOSHIBA_RBTX4927_SETUP_PCIBIOS ( 1 << 7 )
95 #define TOSHIBA_RBTX4927_SETUP_PCI1 ( 1 << 8 )
96 #define TOSHIBA_RBTX4927_SETUP_PCI2 ( 1 << 9 )
97 #define TOSHIBA_RBTX4927_SETUP_PCI66 ( 1 << 10 )
99 #define TOSHIBA_RBTX4927_SETUP_ALL 0xffffffff
100 #endif
102 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
103 static const u32 toshiba_rbtx4927_setup_debug_flag =
104 (TOSHIBA_RBTX4927_SETUP_NONE | TOSHIBA_RBTX4927_SETUP_INFO |
105 TOSHIBA_RBTX4927_SETUP_WARN | TOSHIBA_RBTX4927_SETUP_EROR |
106 TOSHIBA_RBTX4927_SETUP_EFWFU | TOSHIBA_RBTX4927_SETUP_SETUP |
107 TOSHIBA_RBTX4927_SETUP_TIME_INIT | TOSHIBA_RBTX4927_SETUP_TIMER_SETUP
108 | TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
109 TOSHIBA_RBTX4927_SETUP_PCI2 | TOSHIBA_RBTX4927_SETUP_PCI66);
110 #endif
112 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
113 #define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...) \
114 if ( (toshiba_rbtx4927_setup_debug_flag) & (flag) ) \
116 char tmp[100]; \
117 sprintf( tmp, str ); \
118 printk( "%s(%s:%u)::%s", __FUNCTION__, __FILE__, __LINE__, tmp ); \
120 #else
121 #define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...)
122 #endif
124 /* These functions are used for rebooting or halting the machine*/
125 extern void toshiba_rbtx4927_restart(char *command);
126 extern void toshiba_rbtx4927_halt(void);
127 extern void toshiba_rbtx4927_power_off(void);
129 int tx4927_using_backplane = 0;
131 extern void gt64120_time_init(void);
132 extern void toshiba_rbtx4927_irq_setup(void);
134 #ifdef CONFIG_PCI
135 #define CONFIG_TX4927BUG_WORKAROUND
136 #undef TX4927_SUPPORT_COMMAND_IO
137 #undef TX4927_SUPPORT_PCI_66
138 int tx4927_cpu_clock = 100000000; /* 100MHz */
139 unsigned long mips_pci_io_base;
140 unsigned long mips_pci_io_size;
141 unsigned long mips_pci_mem_base;
142 unsigned long mips_pci_mem_size;
143 /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
144 unsigned long mips_pci_io_pciaddr = 0;
145 unsigned long mips_memory_upper;
146 static int tx4927_ccfg_toeon = 1;
147 static int tx4927_pcic_trdyto = 0; /* default: disabled */
148 unsigned long tx4927_ce_base[8];
149 void tx4927_pci_setup(void);
150 void tx4927_reset_pci_pcic(void);
151 int tx4927_pci66 = 0; /* 0:auto */
152 #endif
154 char *toshiba_name = "";
156 #ifdef CONFIG_PCI
157 static void tx4927_pcierr_interrupt(int irq, void *dev_id,
158 struct pt_regs *regs)
160 #ifdef CONFIG_BLK_DEV_IDEPCI
161 /* ignore MasterAbort for ide probing... */
162 if (irq == TX4927_IRQ_IRC_PCIERR &&
163 ((tx4927_pcicptr->pcistatus >> 16) & 0xf900) ==
164 PCI_STATUS_REC_MASTER_ABORT) {
165 tx4927_pcicptr->pcistatus =
166 (tx4927_pcicptr->
167 pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
168 << 16);
170 return;
172 #endif
173 printk("PCI error interrupt (irq 0x%x).\n", irq);
175 printk("pcistat:%04x, g2pstatus:%08lx, pcicstatus:%08lx\n",
176 (unsigned short) (tx4927_pcicptr->pcistatus >> 16),
177 tx4927_pcicptr->g2pstatus, tx4927_pcicptr->pcicstatus);
178 printk("ccfg:%08lx, tear:%02lx_%08lx\n",
179 (unsigned long) tx4927_ccfgptr->ccfg,
180 (unsigned long) (tx4927_ccfgptr->tear >> 32),
181 (unsigned long) tx4927_ccfgptr->tear);
182 show_regs(regs);
185 void __init toshiba_rbtx4927_pci_irq_init(void)
187 return;
190 void tx4927_reset_pci_pcic(void)
192 /* Reset PCI Bus */
193 *tx4927_pcireset_ptr = 1;
194 /* Reset PCIC */
195 tx4927_ccfgptr->clkctr |= TX4927_CLKCTR_PCIRST;
196 udelay(10000);
197 /* clear PCIC reset */
198 tx4927_ccfgptr->clkctr &= ~TX4927_CLKCTR_PCIRST;
199 *tx4927_pcireset_ptr = 0;
201 #endif /* CONFIG_PCI */
203 #ifdef CONFIG_PCI
204 void print_pci_status(void)
206 printk("PCI STATUS %lx\n", tx4927_pcicptr->pcistatus);
207 printk("PCIC STATUS %lx\n", tx4927_pcicptr->pcicstatus);
210 extern struct pci_controller tx4927_controller;
212 static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
213 int top_bus, int busnr, int devfn)
215 static struct pci_dev dev;
216 static struct pci_bus bus;
218 dev.sysdata = (void *)hose;
219 dev.devfn = devfn;
220 bus.number = busnr;
221 bus.ops = hose->pci_ops;
222 bus.parent = NULL;
223 dev.bus = &bus;
225 return &dev;
228 #define EARLY_PCI_OP(rw, size, type) \
229 static int early_##rw##_config_##size(struct pci_controller *hose, \
230 int top_bus, int bus, int devfn, int offset, type value) \
232 return pci_##rw##_config_##size( \
233 fake_pci_dev(hose, top_bus, bus, devfn), \
234 offset, value); \
237 EARLY_PCI_OP(read, byte, u8 *)
238 EARLY_PCI_OP(read, word, u16 *)
239 EARLY_PCI_OP(read, dword, u32 *)
240 EARLY_PCI_OP(write, byte, u8)
241 EARLY_PCI_OP(write, word, u16)
242 EARLY_PCI_OP(write, dword, u32)
244 static int __init tx4927_pcibios_init(void)
246 unsigned int id;
247 u32 pci_devfn;
248 int devfn_start = 0;
249 int devfn_stop = 0xff;
250 int busno = 0; /* One bus on the Toshiba */
251 struct pci_controller *hose = &tx4927_controller;
253 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
254 "-\n");
256 for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
257 early_read_config_dword(hose, busno, busno, pci_devfn,
258 PCI_VENDOR_ID, &id);
260 if (id == 0xffffffff) {
261 continue;
264 if (id == 0x94601055) {
265 u8 v08_64;
266 u32 v32_b0;
267 u8 v08_e1;
268 char *s = " sb/isa --";
270 TOSHIBA_RBTX4927_SETUP_DPRINTK
271 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
274 early_read_config_byte(hose, busno, busno,
275 pci_devfn, 0x64, &v08_64);
276 early_read_config_dword(hose, busno, busno,
277 pci_devfn, 0xb0, &v32_b0);
278 early_read_config_byte(hose, busno, busno,
279 pci_devfn, 0xe1, &v08_e1);
281 TOSHIBA_RBTX4927_SETUP_DPRINTK
282 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
283 ":%s beg 0x64 = 0x%02x\n", s, v08_64);
284 TOSHIBA_RBTX4927_SETUP_DPRINTK
285 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
286 ":%s beg 0xb0 = 0x%02x\n", s, v32_b0);
287 TOSHIBA_RBTX4927_SETUP_DPRINTK
288 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
289 ":%s beg 0xe1 = 0x%02x\n", s, v08_e1);
291 /* serial irq control */
292 v08_64 = 0xd0;
294 /* serial irq pin */
295 v32_b0 |= 0x00010000;
297 /* ide irq on isa14 */
298 v08_e1 &= 0xf0;
299 v08_e1 |= 0x0d;
301 TOSHIBA_RBTX4927_SETUP_DPRINTK
302 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
303 ":%s mid 0x64 = 0x%02x\n", s, v08_64);
304 TOSHIBA_RBTX4927_SETUP_DPRINTK
305 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
306 ":%s mid 0xb0 = 0x%02x\n", s, v32_b0);
307 TOSHIBA_RBTX4927_SETUP_DPRINTK
308 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
309 ":%s mid 0xe1 = 0x%02x\n", s, v08_e1);
311 early_write_config_byte(hose, busno, busno,
312 pci_devfn, 0x64, v08_64);
313 early_write_config_dword(hose, busno, busno,
314 pci_devfn, 0xb0, v32_b0);
315 early_write_config_byte(hose, busno, busno,
316 pci_devfn, 0xe1, v08_e1);
318 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
320 early_read_config_byte(hose, busno, busno,
321 pci_devfn, 0x64,
322 &v08_64);
323 early_read_config_dword(hose, busno, busno,
324 pci_devfn, 0xb0,
325 &v32_b0);
326 early_read_config_byte(hose, busno, busno,
327 pci_devfn, 0xe1,
328 &v08_e1);
330 TOSHIBA_RBTX4927_SETUP_DPRINTK
331 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
332 ":%s end 0x64 = 0x%02x\n", s, v08_64);
333 TOSHIBA_RBTX4927_SETUP_DPRINTK
334 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
335 ":%s end 0xb0 = 0x%02x\n", s, v32_b0);
336 TOSHIBA_RBTX4927_SETUP_DPRINTK
337 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
338 ":%s end 0xe1 = 0x%02x\n", s, v08_e1);
340 #endif
342 TOSHIBA_RBTX4927_SETUP_DPRINTK
343 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
347 if (id == 0x91301055) {
348 u8 v08_04;
349 u8 v08_09;
350 u8 v08_41;
351 u8 v08_43;
352 u8 v08_5c;
353 char *s = " sb/ide --";
355 TOSHIBA_RBTX4927_SETUP_DPRINTK
356 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
359 early_read_config_byte(hose, busno, busno,
360 pci_devfn, 0x04, &v08_04);
361 early_read_config_byte(hose, busno, busno,
362 pci_devfn, 0x09, &v08_09);
363 early_read_config_byte(hose, busno, busno,
364 pci_devfn, 0x41, &v08_41);
365 early_read_config_byte(hose, busno, busno,
366 pci_devfn, 0x43, &v08_43);
367 early_read_config_byte(hose, busno, busno,
368 pci_devfn, 0x5c, &v08_5c);
370 TOSHIBA_RBTX4927_SETUP_DPRINTK
371 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
372 ":%s beg 0x04 = 0x%02x\n", s, v08_04);
373 TOSHIBA_RBTX4927_SETUP_DPRINTK
374 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
375 ":%s beg 0x09 = 0x%02x\n", s, v08_09);
376 TOSHIBA_RBTX4927_SETUP_DPRINTK
377 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
378 ":%s beg 0x41 = 0x%02x\n", s, v08_41);
379 TOSHIBA_RBTX4927_SETUP_DPRINTK
380 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
381 ":%s beg 0x43 = 0x%02x\n", s, v08_43);
382 TOSHIBA_RBTX4927_SETUP_DPRINTK
383 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
384 ":%s beg 0x5c = 0x%02x\n", s, v08_5c);
386 /* enable ide master/io */
387 v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
389 /* enable ide native mode */
390 v08_09 |= 0x05;
392 /* enable primary ide */
393 v08_41 |= 0x80;
395 /* enable secondary ide */
396 v08_43 |= 0x80;
399 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
401 * This line of code is intended to provide the user with a work
402 * around solution to the anomalies cited in SMSC's anomaly sheet
403 * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
405 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
407 v08_5c |= 0x01;
409 TOSHIBA_RBTX4927_SETUP_DPRINTK
410 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
411 ":%s mid 0x04 = 0x%02x\n", s, v08_04);
412 TOSHIBA_RBTX4927_SETUP_DPRINTK
413 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
414 ":%s mid 0x09 = 0x%02x\n", s, v08_09);
415 TOSHIBA_RBTX4927_SETUP_DPRINTK
416 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
417 ":%s mid 0x41 = 0x%02x\n", s, v08_41);
418 TOSHIBA_RBTX4927_SETUP_DPRINTK
419 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
420 ":%s mid 0x43 = 0x%02x\n", s, v08_43);
421 TOSHIBA_RBTX4927_SETUP_DPRINTK
422 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
423 ":%s mid 0x5c = 0x%02x\n", s, v08_5c);
425 early_write_config_byte(hose, busno, busno,
426 pci_devfn, 0x5c, v08_5c);
427 early_write_config_byte(hose, busno, busno,
428 pci_devfn, 0x04, v08_04);
429 early_write_config_byte(hose, busno, busno,
430 pci_devfn, 0x09, v08_09);
431 early_write_config_byte(hose, busno, busno,
432 pci_devfn, 0x41, v08_41);
433 early_write_config_byte(hose, busno, busno,
434 pci_devfn, 0x43, v08_43);
436 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
438 early_read_config_byte(hose, busno, busno,
439 pci_devfn, 0x04,
440 &v08_04);
441 early_read_config_byte(hose, busno, busno,
442 pci_devfn, 0x09,
443 &v08_09);
444 early_read_config_byte(hose, busno, busno,
445 pci_devfn, 0x41,
446 &v08_41);
447 early_read_config_byte(hose, busno, busno,
448 pci_devfn, 0x43,
449 &v08_43);
450 early_read_config_byte(hose, busno, busno,
451 pci_devfn, 0x5c,
452 &v08_5c);
454 TOSHIBA_RBTX4927_SETUP_DPRINTK
455 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
456 ":%s end 0x04 = 0x%02x\n", s, v08_04);
457 TOSHIBA_RBTX4927_SETUP_DPRINTK
458 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
459 ":%s end 0x09 = 0x%02x\n", s, v08_09);
460 TOSHIBA_RBTX4927_SETUP_DPRINTK
461 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
462 ":%s end 0x41 = 0x%02x\n", s, v08_41);
463 TOSHIBA_RBTX4927_SETUP_DPRINTK
464 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
465 ":%s end 0x43 = 0x%02x\n", s, v08_43);
466 TOSHIBA_RBTX4927_SETUP_DPRINTK
467 (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
468 ":%s end 0x5c = 0x%02x\n", s, v08_5c);
470 #endif
472 TOSHIBA_RBTX4927_SETUP_DPRINTK
473 (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
479 register_pci_controller(&tx4927_controller);
480 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
481 "+\n");
483 return 0;
486 arch_initcall(tx4927_pcibios_init);
488 extern struct resource pci_io_resource;
489 extern struct resource pci_mem_resource;
491 void tx4927_pci_setup(void)
493 static int called = 0;
494 extern unsigned int tx4927_get_mem_size(void);
496 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "-\n");
498 mips_memory_upper = tx4927_get_mem_size() << 20;
499 mips_memory_upper += KSEG0;
500 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
501 "0x%08lx=mips_memory_upper\n",
502 mips_memory_upper);
503 mips_pci_io_base = TX4927_PCIIO;
504 mips_pci_io_size = TX4927_PCIIO_SIZE;
505 mips_pci_mem_base = TX4927_PCIMEM;
506 mips_pci_mem_size = TX4927_PCIMEM_SIZE;
508 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
509 "0x%08lx=mips_pci_io_base\n",
510 mips_pci_io_base);
511 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
512 "0x%08lx=mips_pci_io_size\n",
513 mips_pci_io_size);
514 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
515 "0x%08lx=mips_pci_mem_base\n",
516 mips_pci_mem_base);
517 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
518 "0x%08lx=mips_pci_mem_size\n",
519 mips_pci_mem_size);
520 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
521 "0x%08lx=pci_io_resource.start\n",
522 pci_io_resource.start);
523 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
524 "0x%08lx=pci_io_resource.end\n",
525 pci_io_resource.end);
526 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
527 "0x%08lx=pci_mem_resource.start\n",
528 pci_mem_resource.start);
529 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
530 "0x%08lx=pci_mem_resource.end\n",
531 pci_mem_resource.end);
532 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
533 "0x%08lx=mips_io_port_base",
534 mips_io_port_base);
536 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
537 "setup pci_io_resource to 0x%08lx 0x%08lx\n",
538 pci_io_resource.start,
539 pci_io_resource.end);
540 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
541 "setup pci_mem_resource to 0x%08lx 0x%08lx\n",
542 pci_mem_resource.start,
543 pci_mem_resource.end);
545 if (!called) {
546 printk
547 ("TX4927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
548 (unsigned short) (tx4927_pcicptr->pciid >> 16),
549 (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
550 (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
551 (!(tx4927_ccfgptr->
552 ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
553 "Internal");
554 called = 1;
556 printk("%s PCIC --%s PCICLK:",toshiba_name,
557 (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
558 if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
559 int pciclk = 0;
560 switch ((unsigned long) tx4927_ccfgptr->
561 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
562 case TX4927_CCFG_PCIDIVMODE_2_5:
563 pciclk = tx4927_cpu_clock * 2 / 5;
564 break;
565 case TX4927_CCFG_PCIDIVMODE_3:
566 pciclk = tx4927_cpu_clock / 3;
567 break;
568 case TX4927_CCFG_PCIDIVMODE_5:
569 pciclk = tx4927_cpu_clock / 5;
570 break;
571 case TX4927_CCFG_PCIDIVMODE_6:
572 pciclk = tx4927_cpu_clock / 6;
573 break;
575 printk("Internal(%dMHz)", pciclk / 1000000);
576 } else {
577 int pciclk = 0;
578 int pciclk_setting = *tx4927_pci_clk_ptr;
579 switch (pciclk_setting & TX4927_PCI_CLK_MASK) {
580 case TX4927_PCI_CLK_33:
581 pciclk = 33333333;
582 break;
583 case TX4927_PCI_CLK_25:
584 pciclk = 25000000;
585 break;
586 case TX4927_PCI_CLK_66:
587 pciclk = 66666666;
588 break;
589 case TX4927_PCI_CLK_50:
590 pciclk = 50000000;
591 break;
593 printk("External(%dMHz)", pciclk / 1000000);
595 printk("\n");
599 /* GB->PCI mappings */
600 tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
601 tx4927_pcicptr->g2piogbase = mips_pci_io_base |
602 #ifdef __BIG_ENDIAN
603 TX4927_PCIC_G2PIOGBASE_ECHG
604 #else
605 TX4927_PCIC_G2PIOGBASE_BSDIS
606 #endif
609 tx4927_pcicptr->g2piopbase = 0;
611 tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
612 tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
613 #ifdef __BIG_ENDIAN
614 TX4927_PCIC_G2PMnGBASE_ECHG
615 #else
616 TX4927_PCIC_G2PMnGBASE_BSDIS
617 #endif
619 tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
621 tx4927_pcicptr->g2pmmask[1] = 0;
622 tx4927_pcicptr->g2pmgbase[1] = 0;
623 tx4927_pcicptr->g2pmpbase[1] = 0;
624 tx4927_pcicptr->g2pmmask[2] = 0;
625 tx4927_pcicptr->g2pmgbase[2] = 0;
626 tx4927_pcicptr->g2pmpbase[2] = 0;
629 /* PCI->GB mappings (I/O 256B) */
630 tx4927_pcicptr->p2giopbase = 0; /* 256B */
632 /* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
633 tx4927_pcicptr->p2gm0plbase = 0;
634 tx4927_pcicptr->p2gm0pubase = 0;
635 tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
636 #ifdef __BIG_ENDIAN
637 TX4927_PCIC_P2GMnGBASE_TECHG
638 #else
639 TX4927_PCIC_P2GMnGBASE_TBSDIS
640 #endif
643 /* PCI->GB mappings (MEM 16MB) -not used */
644 tx4927_pcicptr->p2gm1plbase = 0xffffffff;
645 #ifdef CONFIG_TX4927BUG_WORKAROUND
647 * TX4927-PCIC-BUG: P2GM1PUBASE must be 0
648 * if P2GM0PUBASE was 0.
650 tx4927_pcicptr->p2gm1pubase = 0;
651 #else
652 tx4927_pcicptr->p2gm1pubase = 0xffffffff;
653 #endif
654 tx4927_pcicptr->p2gmgbase[1] = 0;
656 /* PCI->GB mappings (MEM 1MB) -not used */
657 tx4927_pcicptr->p2gm2pbase = 0xffffffff;
658 tx4927_pcicptr->p2gmgbase[2] = 0;
661 /* Enable Initiator Memory 0 Space, I/O Space, Config */
662 tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
663 tx4927_pcicptr->pciccfg |=
664 TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
665 TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
668 /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
669 tx4927_pcicptr->pcicfg1 = 0;
671 if (tx4927_pcic_trdyto >= 0) {
672 tx4927_pcicptr->g2ptocnt &= ~0xff;
673 tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
676 /* Clear All Local Bus Status */
677 tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
678 /* Enable All Local Bus Interrupts */
679 tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
680 /* Clear All Initiator Status */
681 tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
682 /* Enable All Initiator Interrupts */
683 tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
684 /* Clear All PCI Status Error */
685 tx4927_pcicptr->pcistatus =
686 (tx4927_pcicptr->pcistatus & 0x0000ffff) |
687 (TX4927_PCIC_PCISTATUS_ALL << 16);
688 /* Enable All PCI Status Error Interrupts */
689 tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
691 /* PCIC Int => IRC IRQ16 */
692 tx4927_pcicptr->pcicfg2 =
693 (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
695 if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
696 /* XXX */
697 } else {
698 /* Reset Bus Arbiter */
699 tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
700 /* Enable Bus Arbiter */
701 tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
704 tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
705 PCI_COMMAND_MEMORY |
706 PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
708 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
709 ":pci setup complete:\n");
710 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "+\n");
713 #endif /* CONFIG_PCI */
715 void toshiba_rbtx4927_restart(char *command)
717 printk(KERN_NOTICE "System Rebooting...\n");
719 /* enable the s/w reset register */
720 reg_wr08(RBTX4927_SW_RESET_ENABLE, RBTX4927_SW_RESET_ENABLE_SET);
722 /* wait for enable to be seen */
723 while ((reg_rd08(RBTX4927_SW_RESET_ENABLE) &
724 RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
726 /* do a s/w reset */
727 reg_wr08(RBTX4927_SW_RESET_DO, RBTX4927_SW_RESET_DO_SET);
729 /* do something passive while waiting for reset */
730 local_irq_disable();
731 while (1)
732 asm_wait();
734 /* no return */
738 void toshiba_rbtx4927_halt(void)
740 printk(KERN_NOTICE "System Halted\n");
741 local_irq_disable();
742 while (1) {
743 asm_wait();
745 /* no return */
748 void toshiba_rbtx4927_power_off(void)
750 toshiba_rbtx4927_halt();
751 /* no return */
754 void __init toshiba_rbtx4927_setup(void)
756 vu32 cp0_config;
757 char *argptr;
759 printk("CPU is %s\n", toshiba_name);
761 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
762 "-\n");
764 /* f/w leaves this on at startup */
765 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
766 ":Clearing STO_ERL.\n");
767 clear_c0_status(ST0_ERL);
769 /* enable caches -- HCP5 does this, pmon does not */
770 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
771 ":Enabling TX49_CONF_IC,TX49_CONF_DC.\n");
772 cp0_config = read_c0_config();
773 cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
774 write_c0_config(cp0_config);
776 #ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
778 extern void dump_cp0(char *);
779 dump_cp0("toshiba_rbtx4927_early_fw_fixup");
781 #endif
783 /* setup irq stuff */
784 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
785 ":Setting up tx4927 pic.\n");
786 TX4927_WR(0xff1ff604, 0x00000400); /* irq trigger */
787 TX4927_WR(0xff1ff608, 0x00000000); /* irq trigger */
789 /* setup serial stuff */
790 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
791 ":Setting up tx4927 sio.\n");
792 TX4927_WR(0xff1ff314, 0x00000000); /* h/w flow control off */
793 TX4927_WR(0xff1ff414, 0x00000000); /* h/w flow control off */
795 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
796 "+\n");
798 set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
799 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
800 ":mips_io_port_base=0x%08lx\n",
801 mips_io_port_base);
803 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
804 ":Resource\n");
805 ioport_resource.end = 0xffffffff;
806 iomem_resource.end = 0xffffffff;
808 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
809 ":ResetRoutines\n");
810 _machine_restart = toshiba_rbtx4927_restart;
811 _machine_halt = toshiba_rbtx4927_halt;
812 _machine_power_off = toshiba_rbtx4927_power_off;
814 #ifdef CONFIG_PCI
816 /* PCIC */
818 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
819 * PCIDIVMODE[12:11]'s initial value are given by S9[4:3] (ON:0, OFF:1).
820 * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
821 * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
822 * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
823 * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
824 * i.e. S9[3]: ON (83MHz), OFF (100MHz)
826 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
827 "ccfg is %lx, DIV is %x\n",
828 (unsigned long) tx4927_ccfgptr->
829 ccfg, TX4927_CCFG_PCIDIVMODE_MASK);
831 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
832 "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
833 (unsigned long) tx4927_ccfgptr->
834 ccfg & TX4927_CCFG_PCI66,
835 (unsigned long) tx4927_ccfgptr->
836 ccfg & TX4927_CCFG_PCIMIDE,
837 (unsigned long) tx4927_ccfgptr->
838 ccfg & TX4927_CCFG_PCIXARB);
840 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
841 "PCIDIVMODE is %lx\n",
842 (unsigned long) tx4927_ccfgptr->
843 ccfg & TX4927_CCFG_PCIDIVMODE_MASK);
845 switch ((unsigned long) tx4927_ccfgptr->
846 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
847 case TX4927_CCFG_PCIDIVMODE_2_5:
848 case TX4927_CCFG_PCIDIVMODE_5:
849 tx4927_cpu_clock = 166000000; /* 166MHz */
850 break;
851 default:
852 tx4927_cpu_clock = 200000000; /* 200MHz */
855 /* CCFG */
856 /* enable Timeout BusError */
857 if (tx4927_ccfg_toeon)
858 tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
860 /* SDRAMC fixup */
861 #ifdef CONFIG_TX4927BUG_WORKAROUND
863 * TX4927-BUG: INF 01-01-18/ BUG 01-01-22
864 * G-bus timeout error detection is incorrect
866 if (tx4927_ccfg_toeon)
867 tx4927_sdramcptr->tr |= 0x02000000; /* RCD:3tck */
868 #endif
870 tx4927_pci_setup();
871 if (tx4927_using_backplane == 1)
872 printk("backplane board IS installed\n");
873 else
874 printk("No Backplane \n");
876 /* this is on ISA bus behind PCI bus, so need PCI up first */
877 #ifdef CONFIG_TOSHIBA_FPCIB0
879 if (tx4927_using_backplane) {
880 TOSHIBA_RBTX4927_SETUP_DPRINTK
881 (TOSHIBA_RBTX4927_SETUP_SETUP,
882 ":fpcibo=yes\n");
884 TOSHIBA_RBTX4927_SETUP_DPRINTK
885 (TOSHIBA_RBTX4927_SETUP_SETUP,
886 ":smsc_fdc37m81x_init()\n");
887 smsc_fdc37m81x_init(0x3f0);
889 TOSHIBA_RBTX4927_SETUP_DPRINTK
890 (TOSHIBA_RBTX4927_SETUP_SETUP,
891 ":smsc_fdc37m81x_config_beg()\n");
892 smsc_fdc37m81x_config_beg();
894 TOSHIBA_RBTX4927_SETUP_DPRINTK
895 (TOSHIBA_RBTX4927_SETUP_SETUP,
896 ":smsc_fdc37m81x_config_set(KBD)\n");
897 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
898 SMSC_FDC37M81X_KBD);
899 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
900 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
901 smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
904 smsc_fdc37m81x_config_end();
905 TOSHIBA_RBTX4927_SETUP_DPRINTK
906 (TOSHIBA_RBTX4927_SETUP_SETUP,
907 ":smsc_fdc37m81x_config_end()\n");
908 } else {
909 TOSHIBA_RBTX4927_SETUP_DPRINTK
910 (TOSHIBA_RBTX4927_SETUP_SETUP,
911 ":fpcibo=not_found\n");
914 #else
916 TOSHIBA_RBTX4927_SETUP_DPRINTK
917 (TOSHIBA_RBTX4927_SETUP_SETUP, ":fpcibo=no\n");
919 #endif
921 #endif /* CONFIG_PCI */
923 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
924 argptr = prom_getcmdline();
925 if (strstr(argptr, "console=") == NULL) {
926 strcat(argptr, " console=ttyS0,38400");
928 #endif
930 #ifdef CONFIG_ROOT_NFS
931 argptr = prom_getcmdline();
932 if (strstr(argptr, "root=") == NULL) {
933 strcat(argptr, " root=/dev/nfs rw");
935 #endif
938 #ifdef CONFIG_IP_PNP
939 argptr = prom_getcmdline();
940 if (strstr(argptr, "ip=") == NULL) {
941 strcat(argptr, " ip=any");
943 #endif
946 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
947 "+\n");
950 #ifdef CONFIG_RTC_DS1742
951 extern unsigned long rtc_ds1742_get_time(void);
952 extern int rtc_ds1742_set_time(unsigned long);
953 extern void rtc_ds1742_wait(void);
954 #endif
956 void __init
957 toshiba_rbtx4927_time_init(void)
959 u32 c1;
960 u32 c2;
962 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
964 #ifdef CONFIG_RTC_DS1742
966 rtc_get_time = rtc_ds1742_get_time;
967 rtc_set_time = rtc_ds1742_set_time;
969 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
970 ":rtc_ds1742_init()-\n");
971 rtc_ds1742_init(0xbc010000);
972 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
973 ":rtc_ds1742_init()+\n");
975 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
976 ":Calibrate mips_hpt_frequency-\n");
977 rtc_ds1742_wait();
979 /* get the count */
980 c1 = read_c0_count();
982 /* wait for the seconds to change again */
983 rtc_ds1742_wait();
985 /* get the count again */
986 c2 = read_c0_count();
988 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
989 ":Calibrate mips_hpt_frequency+\n");
990 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
991 ":c1=%12u\n", c1);
992 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
993 ":c2=%12u\n", c2);
995 /* this diff is as close as we are going to get to counter ticks per sec */
996 mips_hpt_frequency = abs(c2 - c1);
997 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
998 ":f1=%12u\n", mips_hpt_frequency);
1000 /* round to 1/10th of a MHz */
1001 mips_hpt_frequency /= (100 * 1000);
1002 mips_hpt_frequency *= (100 * 1000);
1003 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
1004 ":f2=%12u\n", mips_hpt_frequency);
1006 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_INFO,
1007 ":mips_hpt_frequency=%uHz (%uMHz)\n",
1008 mips_hpt_frequency,
1009 mips_hpt_frequency / 1000000);
1010 #else
1011 mips_hpt_frequency = 100000000;
1012 #endif
1014 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
1018 void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq)
1020 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
1021 "-\n");
1022 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
1023 "+\n");