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25#include <linux/init.h>
26#include <linux/extable.h>
27#include <linux/types.h>
28#include <linux/dma-mapping.h>
29#include <linux/interrupt.h>
30#include <linux/device.h>
31#include <linux/of_address.h>
32#include <linux/of_irq.h>
33#include <linux/of_platform.h>
34#include <linux/delay.h>
35#include <linux/slab.h>
36
37#include <linux/io.h>
38#include <linux/uaccess.h>
39#include <asm/machdep.h>
40
41#include "fsl_rio.h"
42
43#undef DEBUG_PW
44
45#define RIO_PORT1_EDCSR 0x0640
46#define RIO_PORT2_EDCSR 0x0680
47#define RIO_PORT1_IECSR 0x10130
48#define RIO_PORT2_IECSR 0x101B0
49
50#define RIO_GCCSR 0x13c
51#define RIO_ESCSR 0x158
52#define ESCSR_CLEAR 0x07120204
53#define RIO_PORT2_ESCSR 0x178
54#define RIO_CCSR 0x15c
55#define RIO_LTLEDCSR_IER 0x80000000
56#define RIO_LTLEDCSR_PRT 0x01000000
57#define IECSR_CLEAR 0x80000000
58#define RIO_ISR_AACR 0x10120
59#define RIO_ISR_AACR_AA 0x1
60
61#define RIWTAR_TRAD_VAL_SHIFT 12
62#define RIWTAR_TRAD_MASK 0x00FFFFFF
63#define RIWBAR_BADD_VAL_SHIFT 12
64#define RIWBAR_BADD_MASK 0x003FFFFF
65#define RIWAR_ENABLE 0x80000000
66#define RIWAR_TGINT_LOCAL 0x00F00000
67#define RIWAR_RDTYP_NO_SNOOP 0x00040000
68#define RIWAR_RDTYP_SNOOP 0x00050000
69#define RIWAR_WRTYP_NO_SNOOP 0x00004000
70#define RIWAR_WRTYP_SNOOP 0x00005000
71#define RIWAR_WRTYP_ALLOC 0x00006000
72#define RIWAR_SIZE_MASK 0x0000003F
73
74#define __fsl_read_rio_config(x, addr, err, op) \
75 __asm__ __volatile__( \
76 "1: "op" %1,0(%2)\n" \
77 " eieio\n" \
78 "2:\n" \
79 ".section .fixup,\"ax\"\n" \
80 "3: li %1,-1\n" \
81 " li %0,%3\n" \
82 " b 2b\n" \
83 ".section __ex_table,\"a\"\n" \
84 PPC_LONG_ALIGN "\n" \
85 PPC_LONG "1b,3b\n" \
86 ".text" \
87 : "=r" (err), "=r" (x) \
88 : "b" (addr), "i" (-EFAULT), "0" (err))
89
90void __iomem *rio_regs_win;
91void __iomem *rmu_regs_win;
92resource_size_t rio_law_start;
93
94struct fsl_rio_dbell *dbell;
95struct fsl_rio_pw *pw;
96
97#ifdef CONFIG_E500
98int fsl_rio_mcheck_exception(struct pt_regs *regs)
99{
100 const struct exception_table_entry *entry;
101 unsigned long reason;
102
103 if (!rio_regs_win)
104 return 0;
105
106 reason = in_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR));
107 if (reason & (RIO_LTLEDCSR_IER | RIO_LTLEDCSR_PRT)) {
108
109 entry = search_exception_tables(regs->nip);
110 if (entry) {
111 pr_debug("RIO: %s - MC Exception handled\n",
112 __func__);
113 out_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR),
114 0);
115 regs->msr |= MSR_RI;
116 regs->nip = entry->fixup;
117 return 1;
118 }
119 }
120
121 return 0;
122}
123EXPORT_SYMBOL_GPL(fsl_rio_mcheck_exception);
124#endif
125
126
127
128
129
130
131
132
133
134
135
136
137static int fsl_local_config_read(struct rio_mport *mport,
138 int index, u32 offset, int len, u32 *data)
139{
140 struct rio_priv *priv = mport->priv;
141 pr_debug("fsl_local_config_read: index %d offset %8.8x\n", index,
142 offset);
143 *data = in_be32(priv->regs_win + offset);
144
145 return 0;
146}
147
148
149
150
151
152
153
154
155
156
157
158
159static int fsl_local_config_write(struct rio_mport *mport,
160 int index, u32 offset, int len, u32 data)
161{
162 struct rio_priv *priv = mport->priv;
163 pr_debug
164 ("fsl_local_config_write: index %d offset %8.8x data %8.8x\n",
165 index, offset, data);
166 out_be32(priv->regs_win + offset, data);
167
168 return 0;
169}
170
171
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173
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176
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181
182
183
184static int
185fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
186 u8 hopcount, u32 offset, int len, u32 *val)
187{
188 struct rio_priv *priv = mport->priv;
189 u8 *data;
190 u32 rval, err = 0;
191
192 pr_debug
193 ("fsl_rio_config_read:"
194 " index %d destid %d hopcount %d offset %8.8x len %d\n",
195 index, destid, hopcount, offset, len);
196
197
198
199 if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
200 return -EINVAL;
201
202 out_be32(&priv->maint_atmu_regs->rowtar,
203 (destid << 22) | (hopcount << 12) | (offset >> 12));
204 out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
205
206 data = (u8 *) priv->maint_win + (offset & (RIO_MAINT_WIN_SIZE - 1));
207 switch (len) {
208 case 1:
209 __fsl_read_rio_config(rval, data, err, "lbz");
210 break;
211 case 2:
212 __fsl_read_rio_config(rval, data, err, "lhz");
213 break;
214 case 4:
215 __fsl_read_rio_config(rval, data, err, "lwz");
216 break;
217 default:
218 return -EINVAL;
219 }
220
221 if (err) {
222 pr_debug("RIO: cfg_read error %d for %x:%x:%x\n",
223 err, destid, hopcount, offset);
224 }
225
226 *val = rval;
227
228 return err;
229}
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244static int
245fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
246 u8 hopcount, u32 offset, int len, u32 val)
247{
248 struct rio_priv *priv = mport->priv;
249 u8 *data;
250 pr_debug
251 ("fsl_rio_config_write:"
252 " index %d destid %d hopcount %d offset %8.8x len %d val %8.8x\n",
253 index, destid, hopcount, offset, len, val);
254
255
256
257 if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
258 return -EINVAL;
259
260 out_be32(&priv->maint_atmu_regs->rowtar,
261 (destid << 22) | (hopcount << 12) | (offset >> 12));
262 out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
263
264 data = (u8 *) priv->maint_win + (offset & (RIO_MAINT_WIN_SIZE - 1));
265 switch (len) {
266 case 1:
267 out_8((u8 *) data, val);
268 break;
269 case 2:
270 out_be16((u16 *) data, val);
271 break;
272 case 4:
273 out_be32((u32 *) data, val);
274 break;
275 default:
276 return -EINVAL;
277 }
278
279 return 0;
280}
281
282static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
283{
284 int i;
285
286
287 for (i = 0; i < RIO_INB_ATMU_COUNT; i++)
288 out_be32(&priv->inb_atmu_regs[i].riwar, 0);
289}
290
291int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
292 u64 rstart, u64 size, u32 flags)
293{
294 struct rio_priv *priv = mport->priv;
295 u32 base_size;
296 unsigned int base_size_log;
297 u64 win_start, win_end;
298 u32 riwar;
299 int i;
300
301 if ((size & (size - 1)) != 0 || size > 0x400000000ULL)
302 return -EINVAL;
303
304 base_size_log = ilog2(size);
305 base_size = 1 << base_size_log;
306
307
308 if (lstart & (base_size - 1))
309 return -EINVAL;
310 if (rstart & (base_size - 1))
311 return -EINVAL;
312
313
314 for (i = 0; i < RIO_INB_ATMU_COUNT; i++) {
315 riwar = in_be32(&priv->inb_atmu_regs[i].riwar);
316 if ((riwar & RIWAR_ENABLE) == 0)
317 continue;
318 win_start = ((u64)(in_be32(&priv->inb_atmu_regs[i].riwbar) & RIWBAR_BADD_MASK))
319 << RIWBAR_BADD_VAL_SHIFT;
320 win_end = win_start + ((1 << ((riwar & RIWAR_SIZE_MASK) + 1)) - 1);
321 if (rstart < win_end && (rstart + size) > win_start)
322 return -EINVAL;
323 }
324
325
326 for (i = 0; i < RIO_INB_ATMU_COUNT; i++) {
327 riwar = in_be32(&priv->inb_atmu_regs[i].riwar);
328 if ((riwar & RIWAR_ENABLE) == 0)
329 break;
330 }
331 if (i >= RIO_INB_ATMU_COUNT)
332 return -ENOMEM;
333
334 out_be32(&priv->inb_atmu_regs[i].riwtar, lstart >> RIWTAR_TRAD_VAL_SHIFT);
335 out_be32(&priv->inb_atmu_regs[i].riwbar, rstart >> RIWBAR_BADD_VAL_SHIFT);
336 out_be32(&priv->inb_atmu_regs[i].riwar, RIWAR_ENABLE | RIWAR_TGINT_LOCAL |
337 RIWAR_RDTYP_SNOOP | RIWAR_WRTYP_SNOOP | (base_size_log - 1));
338
339 return 0;
340}
341
342void fsl_unmap_inb_mem(struct rio_mport *mport, dma_addr_t lstart)
343{
344 u32 win_start_shift, base_start_shift;
345 struct rio_priv *priv = mport->priv;
346 u32 riwar, riwtar;
347 int i;
348
349
350 base_start_shift = lstart >> RIWTAR_TRAD_VAL_SHIFT;
351 for (i = 0; i < RIO_INB_ATMU_COUNT; i++) {
352 riwar = in_be32(&priv->inb_atmu_regs[i].riwar);
353 if ((riwar & RIWAR_ENABLE) == 0)
354 continue;
355
356 riwtar = in_be32(&priv->inb_atmu_regs[i].riwtar);
357 win_start_shift = riwtar & RIWTAR_TRAD_MASK;
358 if (win_start_shift == base_start_shift) {
359 out_be32(&priv->inb_atmu_regs[i].riwar, riwar & ~RIWAR_ENABLE);
360 return;
361 }
362 }
363}
364
365void fsl_rio_port_error_handler(int offset)
366{
367
368 out_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR), 0);
369
370 if (offset == 0) {
371 out_be32((u32 *)(rio_regs_win + RIO_PORT1_EDCSR), 0);
372 out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), IECSR_CLEAR);
373 out_be32((u32 *)(rio_regs_win + RIO_ESCSR), ESCSR_CLEAR);
374 } else {
375 out_be32((u32 *)(rio_regs_win + RIO_PORT2_EDCSR), 0);
376 out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), IECSR_CLEAR);
377 out_be32((u32 *)(rio_regs_win + RIO_PORT2_ESCSR), ESCSR_CLEAR);
378 }
379}
380static inline void fsl_rio_info(struct device *dev, u32 ccsr)
381{
382 const char *str;
383 if (ccsr & 1) {
384
385 switch (ccsr >> 30) {
386 case 0:
387 str = "1";
388 break;
389 case 1:
390 str = "4";
391 break;
392 default:
393 str = "Unknown";
394 break;
395 }
396 dev_info(dev, "Hardware port width: %s\n", str);
397
398 switch ((ccsr >> 27) & 7) {
399 case 0:
400 str = "Single-lane 0";
401 break;
402 case 1:
403 str = "Single-lane 2";
404 break;
405 case 2:
406 str = "Four-lane";
407 break;
408 default:
409 str = "Unknown";
410 break;
411 }
412 dev_info(dev, "Training connection status: %s\n", str);
413 } else {
414
415 if (!(ccsr & 0x80000000))
416 dev_info(dev, "Output port operating in 8-bit mode\n");
417 if (!(ccsr & 0x08000000))
418 dev_info(dev, "Input port operating in 8-bit mode\n");
419 }
420}
421
422
423
424
425
426
427
428
429
430int fsl_rio_setup(struct platform_device *dev)
431{
432 struct rio_ops *ops;
433 struct rio_mport *port;
434 struct rio_priv *priv;
435 int rc = 0;
436 const u32 *dt_range, *cell, *port_index;
437 u32 active_ports = 0;
438 struct resource regs, rmu_regs;
439 struct device_node *np, *rmu_node;
440 int rlen;
441 u32 ccsr;
442 u64 range_start, range_size;
443 int paw, aw, sw;
444 u32 i;
445 static int tmp;
446 struct device_node *rmu_np[MAX_MSG_UNIT_NUM] = {NULL};
447
448 if (!dev->dev.of_node) {
449 dev_err(&dev->dev, "Device OF-Node is NULL");
450 return -ENODEV;
451 }
452
453 rc = of_address_to_resource(dev->dev.of_node, 0, ®s);
454 if (rc) {
455 dev_err(&dev->dev, "Can't get %s property 'reg'\n",
456 dev->dev.of_node->full_name);
457 return -EFAULT;
458 }
459 dev_info(&dev->dev, "Of-device full name %s\n",
460 dev->dev.of_node->full_name);
461 dev_info(&dev->dev, "Regs: %pR\n", ®s);
462
463 rio_regs_win = ioremap(regs.start, resource_size(®s));
464 if (!rio_regs_win) {
465 dev_err(&dev->dev, "Unable to map rio register window\n");
466 rc = -ENOMEM;
467 goto err_rio_regs;
468 }
469
470 ops = kzalloc(sizeof(struct rio_ops), GFP_KERNEL);
471 if (!ops) {
472 rc = -ENOMEM;
473 goto err_ops;
474 }
475 ops->lcread = fsl_local_config_read;
476 ops->lcwrite = fsl_local_config_write;
477 ops->cread = fsl_rio_config_read;
478 ops->cwrite = fsl_rio_config_write;
479 ops->dsend = fsl_rio_doorbell_send;
480 ops->pwenable = fsl_rio_pw_enable;
481 ops->open_outb_mbox = fsl_open_outb_mbox;
482 ops->open_inb_mbox = fsl_open_inb_mbox;
483 ops->close_outb_mbox = fsl_close_outb_mbox;
484 ops->close_inb_mbox = fsl_close_inb_mbox;
485 ops->add_outb_message = fsl_add_outb_message;
486 ops->add_inb_buffer = fsl_add_inb_buffer;
487 ops->get_inb_message = fsl_get_inb_message;
488 ops->map_inb = fsl_map_inb_mem;
489 ops->unmap_inb = fsl_unmap_inb_mem;
490
491 rmu_node = of_parse_phandle(dev->dev.of_node, "fsl,srio-rmu-handle", 0);
492 if (!rmu_node) {
493 dev_err(&dev->dev, "No valid fsl,srio-rmu-handle property\n");
494 rc = -ENOENT;
495 goto err_rmu;
496 }
497 rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
498 if (rc) {
499 dev_err(&dev->dev, "Can't get %s property 'reg'\n",
500 rmu_node->full_name);
501 goto err_rmu;
502 }
503 rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
504 if (!rmu_regs_win) {
505 dev_err(&dev->dev, "Unable to map rmu register window\n");
506 rc = -ENOMEM;
507 goto err_rmu;
508 }
509 for_each_compatible_node(np, NULL, "fsl,srio-msg-unit") {
510 rmu_np[tmp] = np;
511 tmp++;
512 }
513
514
515 np = of_find_compatible_node(NULL, NULL, "fsl,srio-dbell-unit");
516 if (!np) {
517 dev_err(&dev->dev, "No fsl,srio-dbell-unit node\n");
518 rc = -ENODEV;
519 goto err_dbell;
520 }
521 dbell = kzalloc(sizeof(struct fsl_rio_dbell), GFP_KERNEL);
522 if (!(dbell)) {
523 dev_err(&dev->dev, "Can't alloc memory for 'fsl_rio_dbell'\n");
524 rc = -ENOMEM;
525 goto err_dbell;
526 }
527 dbell->dev = &dev->dev;
528 dbell->bellirq = irq_of_parse_and_map(np, 1);
529 dev_info(&dev->dev, "bellirq: %d\n", dbell->bellirq);
530
531 aw = of_n_addr_cells(np);
532 dt_range = of_get_property(np, "reg", &rlen);
533 if (!dt_range) {
534 pr_err("%s: unable to find 'reg' property\n",
535 np->full_name);
536 rc = -ENOMEM;
537 goto err_pw;
538 }
539 range_start = of_read_number(dt_range, aw);
540 dbell->dbell_regs = (struct rio_dbell_regs *)(rmu_regs_win +
541 (u32)range_start);
542
543
544 np = of_find_compatible_node(NULL, NULL, "fsl,srio-port-write-unit");
545 if (!np) {
546 dev_err(&dev->dev, "No fsl,srio-port-write-unit node\n");
547 rc = -ENODEV;
548 goto err_pw;
549 }
550 pw = kzalloc(sizeof(struct fsl_rio_pw), GFP_KERNEL);
551 if (!(pw)) {
552 dev_err(&dev->dev, "Can't alloc memory for 'fsl_rio_pw'\n");
553 rc = -ENOMEM;
554 goto err_pw;
555 }
556 pw->dev = &dev->dev;
557 pw->pwirq = irq_of_parse_and_map(np, 0);
558 dev_info(&dev->dev, "pwirq: %d\n", pw->pwirq);
559 aw = of_n_addr_cells(np);
560 dt_range = of_get_property(np, "reg", &rlen);
561 if (!dt_range) {
562 pr_err("%s: unable to find 'reg' property\n",
563 np->full_name);
564 rc = -ENOMEM;
565 goto err;
566 }
567 range_start = of_read_number(dt_range, aw);
568 pw->pw_regs = (struct rio_pw_regs *)(rmu_regs_win + (u32)range_start);
569
570
571 for_each_child_of_node(dev->dev.of_node, np) {
572 port_index = of_get_property(np, "cell-index", NULL);
573 if (!port_index) {
574 dev_err(&dev->dev, "Can't get %s property 'cell-index'\n",
575 np->full_name);
576 continue;
577 }
578
579 dt_range = of_get_property(np, "ranges", &rlen);
580 if (!dt_range) {
581 dev_err(&dev->dev, "Can't get %s property 'ranges'\n",
582 np->full_name);
583 continue;
584 }
585
586
587 cell = of_get_property(np, "#address-cells", NULL);
588 if (cell)
589 aw = *cell;
590 else
591 aw = of_n_addr_cells(np);
592
593 cell = of_get_property(np, "#size-cells", NULL);
594 if (cell)
595 sw = *cell;
596 else
597 sw = of_n_size_cells(np);
598
599 paw = of_n_addr_cells(np);
600 range_start = of_read_number(dt_range + aw, paw);
601 range_size = of_read_number(dt_range + aw + paw, sw);
602
603 dev_info(&dev->dev, "%s: LAW start 0x%016llx, size 0x%016llx.\n",
604 np->full_name, range_start, range_size);
605
606 port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
607 if (!port)
608 continue;
609
610 rc = rio_mport_initialize(port);
611 if (rc) {
612 kfree(port);
613 continue;
614 }
615
616 i = *port_index - 1;
617 port->index = (unsigned char)i;
618
619 priv = kzalloc(sizeof(struct rio_priv), GFP_KERNEL);
620 if (!priv) {
621 dev_err(&dev->dev, "Can't alloc memory for 'priv'\n");
622 kfree(port);
623 continue;
624 }
625
626 INIT_LIST_HEAD(&port->dbells);
627 port->iores.start = range_start;
628 port->iores.end = port->iores.start + range_size - 1;
629 port->iores.flags = IORESOURCE_MEM;
630 port->iores.name = "rio_io_win";
631
632 if (request_resource(&iomem_resource, &port->iores) < 0) {
633 dev_err(&dev->dev, "RIO: Error requesting master port region"
634 " 0x%016llx-0x%016llx\n",
635 (u64)port->iores.start, (u64)port->iores.end);
636 kfree(priv);
637 kfree(port);
638 continue;
639 }
640 sprintf(port->name, "RIO mport %d", i);
641
642 priv->dev = &dev->dev;
643 port->dev.parent = &dev->dev;
644 port->ops = ops;
645 port->priv = priv;
646 port->phys_efptr = 0x100;
647 port->phys_rmap = 1;
648 priv->regs_win = rio_regs_win;
649
650 ccsr = in_be32(priv->regs_win + RIO_CCSR + i*0x20);
651
652
653 if (in_be32((priv->regs_win + RIO_ESCSR + i*0x20)) & 1) {
654 dev_err(&dev->dev, "Port %d is not ready. "
655 "Try to restart connection...\n", i);
656
657 out_be32(priv->regs_win
658 + RIO_CCSR + i*0x20, 0);
659
660 setbits32(priv->regs_win
661 + RIO_CCSR + i*0x20, 0x02000000);
662
663 setbits32(priv->regs_win
664 + RIO_CCSR + i*0x20, 0x00600000);
665 msleep(100);
666 if (in_be32((priv->regs_win
667 + RIO_ESCSR + i*0x20)) & 1) {
668 dev_err(&dev->dev,
669 "Port %d restart failed.\n", i);
670 release_resource(&port->iores);
671 kfree(priv);
672 kfree(port);
673 continue;
674 }
675 dev_info(&dev->dev, "Port %d restart success!\n", i);
676 }
677 fsl_rio_info(&dev->dev, ccsr);
678
679 port->sys_size = (in_be32((priv->regs_win + RIO_PEF_CAR))
680 & RIO_PEF_CTLS) >> 4;
681 dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n",
682 port->sys_size ? 65536 : 256);
683
684 if (port->host_deviceid >= 0)
685 out_be32(priv->regs_win + RIO_GCCSR, RIO_PORT_GEN_HOST |
686 RIO_PORT_GEN_MASTER | RIO_PORT_GEN_DISCOVERED);
687 else
688 out_be32(priv->regs_win + RIO_GCCSR,
689 RIO_PORT_GEN_MASTER);
690
691 priv->atmu_regs = (struct rio_atmu_regs *)(priv->regs_win
692 + ((i == 0) ? RIO_ATMU_REGS_PORT1_OFFSET :
693 RIO_ATMU_REGS_PORT2_OFFSET));
694
695 priv->maint_atmu_regs = priv->atmu_regs + 1;
696 priv->inb_atmu_regs = (struct rio_inb_atmu_regs __iomem *)
697 (priv->regs_win +
698 ((i == 0) ? RIO_INB_ATMU_REGS_PORT1_OFFSET :
699 RIO_INB_ATMU_REGS_PORT2_OFFSET));
700
701
702 out_be32((priv->regs_win + RIO_ISR_AACR + i*0x80),
703 RIO_ISR_AACR_AA);
704
705
706 out_be32(&priv->maint_atmu_regs->rowbar,
707 port->iores.start >> 12);
708 out_be32(&priv->maint_atmu_regs->rowar,
709 0x80077000 | (ilog2(RIO_MAINT_WIN_SIZE) - 1));
710
711 priv->maint_win = ioremap(port->iores.start,
712 RIO_MAINT_WIN_SIZE);
713
714 rio_law_start = range_start;
715
716 fsl_rio_setup_rmu(port, rmu_np[i]);
717 fsl_rio_inbound_mem_init(priv);
718
719 dbell->mport[i] = port;
720 pw->mport[i] = port;
721
722 if (rio_register_mport(port)) {
723 release_resource(&port->iores);
724 kfree(priv);
725 kfree(port);
726 continue;
727 }
728 active_ports++;
729 }
730
731 if (!active_ports) {
732 rc = -ENOLINK;
733 goto err;
734 }
735
736 fsl_rio_doorbell_init(dbell);
737 fsl_rio_port_write_init(pw);
738
739 return 0;
740err:
741 kfree(pw);
742 pw = NULL;
743err_pw:
744 kfree(dbell);
745 dbell = NULL;
746err_dbell:
747 iounmap(rmu_regs_win);
748 rmu_regs_win = NULL;
749err_rmu:
750 kfree(ops);
751err_ops:
752 iounmap(rio_regs_win);
753 rio_regs_win = NULL;
754err_rio_regs:
755 return rc;
756}
757
758
759
760static int fsl_of_rio_rpn_probe(struct platform_device *dev)
761{
762 printk(KERN_INFO "Setting up RapidIO peer-to-peer network %s\n",
763 dev->dev.of_node->full_name);
764
765 return fsl_rio_setup(dev);
766};
767
768static const struct of_device_id fsl_of_rio_rpn_ids[] = {
769 {
770 .compatible = "fsl,srio",
771 },
772 {},
773};
774
775static struct platform_driver fsl_of_rio_rpn_driver = {
776 .driver = {
777 .name = "fsl-of-rio",
778 .of_match_table = fsl_of_rio_rpn_ids,
779 },
780 .probe = fsl_of_rio_rpn_probe,
781};
782
783static __init int fsl_of_rio_rpn_init(void)
784{
785 return platform_driver_register(&fsl_of_rio_rpn_driver);
786}
787
788subsys_initcall(fsl_of_rio_rpn_init);
789
