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[POWERPC] bestcomm: Restrict bus prefetch bugfix to original mpc5200 silicon.
[linux-2.6/mini2440.git] / arch / powerpc / sysdev / fsl_soc.c
blob3ace7474809e00ba6d21be039e2d6dc21215b442
1 /*
2 * FSL SoC setup code
3 *
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
5 *
6 * 2006 (c) MontaVista Software, Inc.
7 * Vitaly Bordug <vbordug@ru.mvista.com>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
15 #include <linux/stddef.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/errno.h>
19 #include <linux/major.h>
20 #include <linux/delay.h>
21 #include <linux/irq.h>
22 #include <linux/module.h>
23 #include <linux/device.h>
24 #include <linux/platform_device.h>
25 #include <linux/of_platform.h>
26 #include <linux/phy.h>
27 #include <linux/spi/spi.h>
28 #include <linux/fsl_devices.h>
29 #include <linux/fs_enet_pd.h>
30 #include <linux/fs_uart_pd.h>
31
32 #include <asm/system.h>
33 #include <asm/atomic.h>
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/time.h>
37 #include <asm/prom.h>
38 #include <sysdev/fsl_soc.h>
39 #include <mm/mmu_decl.h>
40 #include <asm/cpm2.h>
41
42 extern void init_fcc_ioports(struct fs_platform_info*);
43 extern void init_fec_ioports(struct fs_platform_info*);
44 extern void init_smc_ioports(struct fs_uart_platform_info*);
45 static phys_addr_t immrbase = -1;
46
47 phys_addr_t get_immrbase(void)
48 {
49 struct device_node *soc;
50
51 if (immrbase != -1)
52 return immrbase;
53
54 soc = of_find_node_by_type(NULL, "soc");
55 if (soc) {
56 int size;
57 const void *prop = of_get_property(soc, "reg", &size);
58
59 if (prop)
60 immrbase = of_translate_address(soc, prop);
61 of_node_put(soc);
62 }
63
64 return immrbase;
65 }
66
67 EXPORT_SYMBOL(get_immrbase);
68
69 #if defined(CONFIG_CPM2) || defined(CONFIG_8xx)
70
71 static u32 brgfreq = -1;
72
73 u32 get_brgfreq(void)
74 {
75 struct device_node *node;
76 const unsigned int *prop;
77 int size;
78
79 if (brgfreq != -1)
80 return brgfreq;
81
82 node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
83 if (node) {
84 prop = of_get_property(node, "clock-frequency", &size);
85 if (prop && size == 4)
86 brgfreq = *prop;
87
88 of_node_put(node);
89 return brgfreq;
90 }
91
92 /* Legacy device binding -- will go away when no users are left. */
93 node = of_find_node_by_type(NULL, "cpm");
94 if (node) {
95 prop = of_get_property(node, "brg-frequency", &size);
96 if (prop && size == 4)
97 brgfreq = *prop;
98
99 of_node_put(node);
100 }
101
102 return brgfreq;
103 }
104
105 EXPORT_SYMBOL(get_brgfreq);
106
107 static u32 fs_baudrate = -1;
108
109 u32 get_baudrate(void)
110 {
111 struct device_node *node;
112
113 if (fs_baudrate != -1)
114 return fs_baudrate;
115
116 node = of_find_node_by_type(NULL, "serial");
117 if (node) {
118 int size;
119 const unsigned int *prop = of_get_property(node,
120 "current-speed", &size);
121
122 if (prop)
123 fs_baudrate = *prop;
124 of_node_put(node);
125 }
126
127 return fs_baudrate;
128 }
129
130 EXPORT_SYMBOL(get_baudrate);
131 #endif /* CONFIG_CPM2 */
132
133 static int __init gfar_mdio_of_init(void)
134 {
135 struct device_node *np;
136 unsigned int i;
137 struct platform_device *mdio_dev;
138 struct resource res;
139 int ret;
140
141 for (np = NULL, i = 0;
142 (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
143 i++) {
144 int k;
145 struct device_node *child = NULL;
146 struct gianfar_mdio_data mdio_data;
147
148 memset(&res, 0, sizeof(res));
149 memset(&mdio_data, 0, sizeof(mdio_data));
150
151 ret = of_address_to_resource(np, 0, &res);
152 if (ret)
153 goto err;
154
155 mdio_dev =
156 platform_device_register_simple("fsl-gianfar_mdio",
157 res.start, &res, 1);
158 if (IS_ERR(mdio_dev)) {
159 ret = PTR_ERR(mdio_dev);
160 goto err;
161 }
162
163 for (k = 0; k < 32; k++)
164 mdio_data.irq[k] = PHY_POLL;
165
166 while ((child = of_get_next_child(np, child)) != NULL) {
167 int irq = irq_of_parse_and_map(child, 0);
168 if (irq != NO_IRQ) {
169 const u32 *id = of_get_property(child,
170 "reg", NULL);
171 mdio_data.irq[*id] = irq;
172 }
173 }
174
175 ret =
176 platform_device_add_data(mdio_dev, &mdio_data,
177 sizeof(struct gianfar_mdio_data));
178 if (ret)
179 goto unreg;
180 }
181
182 return 0;
183
184 unreg:
185 platform_device_unregister(mdio_dev);
186 err:
187 return ret;
188 }
189
190 arch_initcall(gfar_mdio_of_init);
191
192 static const char *gfar_tx_intr = "tx";
193 static const char *gfar_rx_intr = "rx";
194 static const char *gfar_err_intr = "error";
195
196
197 static int __init gfar_of_init(void)
198 {
199 struct device_node *np;
200 unsigned int i;
201 struct platform_device *gfar_dev;
202 struct resource res;
203 int ret;
204
205 for (np = NULL, i = 0;
206 (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
207 i++) {
208 struct resource r[4];
209 struct device_node *phy, *mdio;
210 struct gianfar_platform_data gfar_data;
211 const unsigned int *id;
212 const char *model;
213 const char *ctype;
214 const void *mac_addr;
215 const phandle *ph;
216 int n_res = 2;
217
218 memset(r, 0, sizeof(r));
219 memset(&gfar_data, 0, sizeof(gfar_data));
220
221 ret = of_address_to_resource(np, 0, &r[0]);
222 if (ret)
223 goto err;
224
225 of_irq_to_resource(np, 0, &r[1]);
226
227 model = of_get_property(np, "model", NULL);
228
229 /* If we aren't the FEC we have multiple interrupts */
230 if (model && strcasecmp(model, "FEC")) {
231 r[1].name = gfar_tx_intr;
232
233 r[2].name = gfar_rx_intr;
234 of_irq_to_resource(np, 1, &r[2]);
235
236 r[3].name = gfar_err_intr;
237 of_irq_to_resource(np, 2, &r[3]);
238
239 n_res += 2;
240 }
241
242 gfar_dev =
243 platform_device_register_simple("fsl-gianfar", i, &r[0],
244 n_res);
245
246 if (IS_ERR(gfar_dev)) {
247 ret = PTR_ERR(gfar_dev);
248 goto err;
249 }
250
251 mac_addr = of_get_mac_address(np);
252 if (mac_addr)
253 memcpy(gfar_data.mac_addr, mac_addr, 6);
254
255 if (model && !strcasecmp(model, "TSEC"))
256 gfar_data.device_flags =
257 FSL_GIANFAR_DEV_HAS_GIGABIT |
258 FSL_GIANFAR_DEV_HAS_COALESCE |
259 FSL_GIANFAR_DEV_HAS_RMON |
260 FSL_GIANFAR_DEV_HAS_MULTI_INTR;
261 if (model && !strcasecmp(model, "eTSEC"))
262 gfar_data.device_flags =
263 FSL_GIANFAR_DEV_HAS_GIGABIT |
264 FSL_GIANFAR_DEV_HAS_COALESCE |
265 FSL_GIANFAR_DEV_HAS_RMON |
266 FSL_GIANFAR_DEV_HAS_MULTI_INTR |
267 FSL_GIANFAR_DEV_HAS_CSUM |
268 FSL_GIANFAR_DEV_HAS_VLAN |
269 FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
270
271 ctype = of_get_property(np, "phy-connection-type", NULL);
272
273 /* We only care about rgmii-id. The rest are autodetected */
274 if (ctype && !strcmp(ctype, "rgmii-id"))
275 gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
276 else
277 gfar_data.interface = PHY_INTERFACE_MODE_MII;
278
279 ph = of_get_property(np, "phy-handle", NULL);
280 phy = of_find_node_by_phandle(*ph);
281
282 if (phy == NULL) {
283 ret = -ENODEV;
284 goto unreg;
285 }
286
287 mdio = of_get_parent(phy);
288
289 id = of_get_property(phy, "reg", NULL);
290 ret = of_address_to_resource(mdio, 0, &res);
291 if (ret) {
292 of_node_put(phy);
293 of_node_put(mdio);
294 goto unreg;
295 }
296
297 gfar_data.phy_id = *id;
298 gfar_data.bus_id = res.start;
299
300 of_node_put(phy);
301 of_node_put(mdio);
302
303 ret =
304 platform_device_add_data(gfar_dev, &gfar_data,
305 sizeof(struct
306 gianfar_platform_data));
307 if (ret)
308 goto unreg;
309 }
310
311 return 0;
312
313 unreg:
314 platform_device_unregister(gfar_dev);
315 err:
316 return ret;
317 }
318
319 arch_initcall(gfar_of_init);
320
321 #ifdef CONFIG_I2C_BOARDINFO
322 #include <linux/i2c.h>
323 struct i2c_driver_device {
324 char *of_device;
325 char *i2c_driver;
326 char *i2c_type;
327 };
328
329 static struct i2c_driver_device i2c_devices[] __initdata = {
330 {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
331 {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
332 {"ricoh,rv5c386", "rtc-rs5c372", "rv5c386",},
333 {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
334 {"dallas,ds1307", "rtc-ds1307", "ds1307",},
335 {"dallas,ds1337", "rtc-ds1307", "ds1337",},
336 {"dallas,ds1338", "rtc-ds1307", "ds1338",},
337 {"dallas,ds1339", "rtc-ds1307", "ds1339",},
338 {"dallas,ds1340", "rtc-ds1307", "ds1340",},
339 {"stm,m41t00", "rtc-ds1307", "m41t00"},
340 {"dallas,ds1374", "rtc-ds1374", "rtc-ds1374",},
341 };
342
343 static int __init of_find_i2c_driver(struct device_node *node,
344 struct i2c_board_info *info)
345 {
346 int i;
347
348 for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
349 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
350 continue;
351 if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
352 KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
353 strlcpy(info->type, i2c_devices[i].i2c_type,
354 I2C_NAME_SIZE) >= I2C_NAME_SIZE)
355 return -ENOMEM;
356 return 0;
357 }
358 return -ENODEV;
359 }
360
361 static void __init of_register_i2c_devices(struct device_node *adap_node,
362 int bus_num)
363 {
364 struct device_node *node = NULL;
365
366 while ((node = of_get_next_child(adap_node, node))) {
367 struct i2c_board_info info = {};
368 const u32 *addr;
369 int len;
370
371 addr = of_get_property(node, "reg", &len);
372 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
373 printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
374 continue;
375 }
376
377 info.irq = irq_of_parse_and_map(node, 0);
378 if (info.irq == NO_IRQ)
379 info.irq = -1;
380
381 if (of_find_i2c_driver(node, &info) < 0)
382 continue;
383
384 info.addr = *addr;
385
386 i2c_register_board_info(bus_num, &info, 1);
387 }
388 }
389
390 static int __init fsl_i2c_of_init(void)
391 {
392 struct device_node *np;
393 unsigned int i;
394 struct platform_device *i2c_dev;
395 int ret;
396
397 for (np = NULL, i = 0;
398 (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
399 i++) {
400 struct resource r[2];
401 struct fsl_i2c_platform_data i2c_data;
402 const unsigned char *flags = NULL;
403
404 memset(&r, 0, sizeof(r));
405 memset(&i2c_data, 0, sizeof(i2c_data));
406
407 ret = of_address_to_resource(np, 0, &r[0]);
408 if (ret)
409 goto err;
410
411 of_irq_to_resource(np, 0, &r[1]);
412
413 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
414 if (IS_ERR(i2c_dev)) {
415 ret = PTR_ERR(i2c_dev);
416 goto err;
417 }
418
419 i2c_data.device_flags = 0;
420 flags = of_get_property(np, "dfsrr", NULL);
421 if (flags)
422 i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
423
424 flags = of_get_property(np, "fsl5200-clocking", NULL);
425 if (flags)
426 i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
427
428 ret =
429 platform_device_add_data(i2c_dev, &i2c_data,
430 sizeof(struct
431 fsl_i2c_platform_data));
432 if (ret)
433 goto unreg;
434
435 of_register_i2c_devices(np, i);
436 }
437
438 return 0;
439
440 unreg:
441 platform_device_unregister(i2c_dev);
442 err:
443 return ret;
444 }
445
446 arch_initcall(fsl_i2c_of_init);
447 #endif
448
449 #ifdef CONFIG_PPC_83xx
450 static int __init mpc83xx_wdt_init(void)
451 {
452 struct resource r;
453 struct device_node *soc, *np;
454 struct platform_device *dev;
455 const unsigned int *freq;
456 int ret;
457
458 np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
459
460 if (!np) {
461 ret = -ENODEV;
462 goto nodev;
463 }
464
465 soc = of_find_node_by_type(NULL, "soc");
466
467 if (!soc) {
468 ret = -ENODEV;
469 goto nosoc;
470 }
471
472 freq = of_get_property(soc, "bus-frequency", NULL);
473 if (!freq) {
474 ret = -ENODEV;
475 goto err;
476 }
477
478 memset(&r, 0, sizeof(r));
479
480 ret = of_address_to_resource(np, 0, &r);
481 if (ret)
482 goto err;
483
484 dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
485 if (IS_ERR(dev)) {
486 ret = PTR_ERR(dev);
487 goto err;
488 }
489
490 ret = platform_device_add_data(dev, freq, sizeof(int));
491 if (ret)
492 goto unreg;
493
494 of_node_put(soc);
495 of_node_put(np);
496
497 return 0;
498
499 unreg:
500 platform_device_unregister(dev);
501 err:
502 of_node_put(soc);
503 nosoc:
504 of_node_put(np);
505 nodev:
506 return ret;
507 }
508
509 arch_initcall(mpc83xx_wdt_init);
510 #endif
511
512 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
513 {
514 if (!phy_type)
515 return FSL_USB2_PHY_NONE;
516 if (!strcasecmp(phy_type, "ulpi"))
517 return FSL_USB2_PHY_ULPI;
518 if (!strcasecmp(phy_type, "utmi"))
519 return FSL_USB2_PHY_UTMI;
520 if (!strcasecmp(phy_type, "utmi_wide"))
521 return FSL_USB2_PHY_UTMI_WIDE;
522 if (!strcasecmp(phy_type, "serial"))
523 return FSL_USB2_PHY_SERIAL;
524
525 return FSL_USB2_PHY_NONE;
526 }
527
528 static int __init fsl_usb_of_init(void)
529 {
530 struct device_node *np;
531 unsigned int i;
532 struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
533 *usb_dev_dr_client = NULL;
534 int ret;
535
536 for (np = NULL, i = 0;
537 (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
538 i++) {
539 struct resource r[2];
540 struct fsl_usb2_platform_data usb_data;
541 const unsigned char *prop = NULL;
542
543 memset(&r, 0, sizeof(r));
544 memset(&usb_data, 0, sizeof(usb_data));
545
546 ret = of_address_to_resource(np, 0, &r[0]);
547 if (ret)
548 goto err;
549
550 of_irq_to_resource(np, 0, &r[1]);
551
552 usb_dev_mph =
553 platform_device_register_simple("fsl-ehci", i, r, 2);
554 if (IS_ERR(usb_dev_mph)) {
555 ret = PTR_ERR(usb_dev_mph);
556 goto err;
557 }
558
559 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
560 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
561
562 usb_data.operating_mode = FSL_USB2_MPH_HOST;
563
564 prop = of_get_property(np, "port0", NULL);
565 if (prop)
566 usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
567
568 prop = of_get_property(np, "port1", NULL);
569 if (prop)
570 usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
571
572 prop = of_get_property(np, "phy_type", NULL);
573 usb_data.phy_mode = determine_usb_phy(prop);
574
575 ret =
576 platform_device_add_data(usb_dev_mph, &usb_data,
577 sizeof(struct
578 fsl_usb2_platform_data));
579 if (ret)
580 goto unreg_mph;
581 }
582
583 for (np = NULL;
584 (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
585 i++) {
586 struct resource r[2];
587 struct fsl_usb2_platform_data usb_data;
588 const unsigned char *prop = NULL;
589
590 memset(&r, 0, sizeof(r));
591 memset(&usb_data, 0, sizeof(usb_data));
592
593 ret = of_address_to_resource(np, 0, &r[0]);
594 if (ret)
595 goto unreg_mph;
596
597 of_irq_to_resource(np, 0, &r[1]);
598
599 prop = of_get_property(np, "dr_mode", NULL);
600
601 if (!prop || !strcmp(prop, "host")) {
602 usb_data.operating_mode = FSL_USB2_DR_HOST;
603 usb_dev_dr_host = platform_device_register_simple(
604 "fsl-ehci", i, r, 2);
605 if (IS_ERR(usb_dev_dr_host)) {
606 ret = PTR_ERR(usb_dev_dr_host);
607 goto err;
608 }
609 } else if (prop && !strcmp(prop, "peripheral")) {
610 usb_data.operating_mode = FSL_USB2_DR_DEVICE;
611 usb_dev_dr_client = platform_device_register_simple(
612 "fsl-usb2-udc", i, r, 2);
613 if (IS_ERR(usb_dev_dr_client)) {
614 ret = PTR_ERR(usb_dev_dr_client);
615 goto err;
616 }
617 } else if (prop && !strcmp(prop, "otg")) {
618 usb_data.operating_mode = FSL_USB2_DR_OTG;
619 usb_dev_dr_host = platform_device_register_simple(
620 "fsl-ehci", i, r, 2);
621 if (IS_ERR(usb_dev_dr_host)) {
622 ret = PTR_ERR(usb_dev_dr_host);
623 goto err;
624 }
625 usb_dev_dr_client = platform_device_register_simple(
626 "fsl-usb2-udc", i, r, 2);
627 if (IS_ERR(usb_dev_dr_client)) {
628 ret = PTR_ERR(usb_dev_dr_client);
629 goto err;
630 }
631 } else {
632 ret = -EINVAL;
633 goto err;
634 }
635
636 prop = of_get_property(np, "phy_type", NULL);
637 usb_data.phy_mode = determine_usb_phy(prop);
638
639 if (usb_dev_dr_host) {
640 usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
641 usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
642 dev.coherent_dma_mask;
643 if ((ret = platform_device_add_data(usb_dev_dr_host,
644 &usb_data, sizeof(struct
645 fsl_usb2_platform_data))))
646 goto unreg_dr;
647 }
648 if (usb_dev_dr_client) {
649 usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
650 usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
651 dev.coherent_dma_mask;
652 if ((ret = platform_device_add_data(usb_dev_dr_client,
653 &usb_data, sizeof(struct
654 fsl_usb2_platform_data))))
655 goto unreg_dr;
656 }
657 }
658 return 0;
659
660 unreg_dr:
661 if (usb_dev_dr_host)
662 platform_device_unregister(usb_dev_dr_host);
663 if (usb_dev_dr_client)
664 platform_device_unregister(usb_dev_dr_client);
665 unreg_mph:
666 if (usb_dev_mph)
667 platform_device_unregister(usb_dev_mph);
668 err:
669 return ret;
670 }
671
672 arch_initcall(fsl_usb_of_init);
673
674 #ifndef CONFIG_PPC_CPM_NEW_BINDING
675 #ifdef CONFIG_CPM2
676
677 extern void init_scc_ioports(struct fs_uart_platform_info*);
678
679 static const char fcc_regs[] = "fcc_regs";
680 static const char fcc_regs_c[] = "fcc_regs_c";
681 static const char fcc_pram[] = "fcc_pram";
682 static char bus_id[9][BUS_ID_SIZE];
683
684 static int __init fs_enet_of_init(void)
685 {
686 struct device_node *np;
687 unsigned int i;
688 struct platform_device *fs_enet_dev;
689 struct resource res;
690 int ret;
691
692 for (np = NULL, i = 0;
693 (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
694 i++) {
695 struct resource r[4];
696 struct device_node *phy, *mdio;
697 struct fs_platform_info fs_enet_data;
698 const unsigned int *id, *phy_addr, *phy_irq;
699 const void *mac_addr;
700 const phandle *ph;
701 const char *model;
702
703 memset(r, 0, sizeof(r));
704 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
705
706 ret = of_address_to_resource(np, 0, &r[0]);
707 if (ret)
708 goto err;
709 r[0].name = fcc_regs;
710
711 ret = of_address_to_resource(np, 1, &r[1]);
712 if (ret)
713 goto err;
714 r[1].name = fcc_pram;
715
716 ret = of_address_to_resource(np, 2, &r[2]);
717 if (ret)
718 goto err;
719 r[2].name = fcc_regs_c;
720 fs_enet_data.fcc_regs_c = r[2].start;
721
722 of_irq_to_resource(np, 0, &r[3]);
723
724 fs_enet_dev =
725 platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
726
727 if (IS_ERR(fs_enet_dev)) {
728 ret = PTR_ERR(fs_enet_dev);
729 goto err;
730 }
731
732 model = of_get_property(np, "model", NULL);
733 if (model == NULL) {
734 ret = -ENODEV;
735 goto unreg;
736 }
737
738 mac_addr = of_get_mac_address(np);
739 if (mac_addr)
740 memcpy(fs_enet_data.macaddr, mac_addr, 6);
741
742 ph = of_get_property(np, "phy-handle", NULL);
743 phy = of_find_node_by_phandle(*ph);
744
745 if (phy == NULL) {
746 ret = -ENODEV;
747 goto unreg;
748 }
749
750 phy_addr = of_get_property(phy, "reg", NULL);
751 fs_enet_data.phy_addr = *phy_addr;
752
753 phy_irq = of_get_property(phy, "interrupts", NULL);
754
755 id = of_get_property(np, "device-id", NULL);
756 fs_enet_data.fs_no = *id;
757 strcpy(fs_enet_data.fs_type, model);
758
759 mdio = of_get_parent(phy);
760 ret = of_address_to_resource(mdio, 0, &res);
761 if (ret) {
762 of_node_put(phy);
763 of_node_put(mdio);
764 goto unreg;
765 }
766
767 fs_enet_data.clk_rx = *((u32 *)of_get_property(np,
768 "rx-clock", NULL));
769 fs_enet_data.clk_tx = *((u32 *)of_get_property(np,
770 "tx-clock", NULL));
771
772 if (strstr(model, "FCC")) {
773 int fcc_index = *id - 1;
774 const unsigned char *mdio_bb_prop;
775
776 fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
777 fs_enet_data.rx_ring = 32;
778 fs_enet_data.tx_ring = 32;
779 fs_enet_data.rx_copybreak = 240;
780 fs_enet_data.use_napi = 0;
781 fs_enet_data.napi_weight = 17;
782 fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
783 fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
784 fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);
785
786 snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
787 (u32)res.start, fs_enet_data.phy_addr);
788 fs_enet_data.bus_id = (char*)&bus_id[(*id)];
789 fs_enet_data.init_ioports = init_fcc_ioports;
790
791 mdio_bb_prop = of_get_property(phy, "bitbang", NULL);
792 if (mdio_bb_prop) {
793 struct platform_device *fs_enet_mdio_bb_dev;
794 struct fs_mii_bb_platform_info fs_enet_mdio_bb_data;
795
796 fs_enet_mdio_bb_dev =
797 platform_device_register_simple("fsl-bb-mdio",
798 i, NULL, 0);
799 memset(&fs_enet_mdio_bb_data, 0,
800 sizeof(struct fs_mii_bb_platform_info));
801 fs_enet_mdio_bb_data.mdio_dat.bit =
802 mdio_bb_prop[0];
803 fs_enet_mdio_bb_data.mdio_dir.bit =
804 mdio_bb_prop[1];
805 fs_enet_mdio_bb_data.mdc_dat.bit =
806 mdio_bb_prop[2];
807 fs_enet_mdio_bb_data.mdio_port =
808 mdio_bb_prop[3];
809 fs_enet_mdio_bb_data.mdc_port =
810 mdio_bb_prop[4];
811 fs_enet_mdio_bb_data.delay =
812 mdio_bb_prop[5];
813
814 fs_enet_mdio_bb_data.irq[0] = phy_irq[0];
815 fs_enet_mdio_bb_data.irq[1] = -1;
816 fs_enet_mdio_bb_data.irq[2] = -1;
817 fs_enet_mdio_bb_data.irq[3] = phy_irq[0];
818 fs_enet_mdio_bb_data.irq[31] = -1;
819
820 fs_enet_mdio_bb_data.mdio_dat.offset =
821 (u32)&cpm2_immr->im_ioport.iop_pdatc;
822 fs_enet_mdio_bb_data.mdio_dir.offset =
823 (u32)&cpm2_immr->im_ioport.iop_pdirc;
824 fs_enet_mdio_bb_data.mdc_dat.offset =
825 (u32)&cpm2_immr->im_ioport.iop_pdatc;
826
827 ret = platform_device_add_data(
828 fs_enet_mdio_bb_dev,
829 &fs_enet_mdio_bb_data,
830 sizeof(struct fs_mii_bb_platform_info));
831 if (ret)
832 goto unreg;
833 }
834
835 of_node_put(phy);
836 of_node_put(mdio);
837
838 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
839 sizeof(struct
840 fs_platform_info));
841 if (ret)
842 goto unreg;
843 }
844 }
845 return 0;
846
847 unreg:
848 platform_device_unregister(fs_enet_dev);
849 err:
850 return ret;
851 }
852
853 arch_initcall(fs_enet_of_init);
854
855 static const char scc_regs[] = "regs";
856 static const char scc_pram[] = "pram";
857
858 static int __init cpm_uart_of_init(void)
859 {
860 struct device_node *np;
861 unsigned int i;
862 struct platform_device *cpm_uart_dev;
863 int ret;
864
865 for (np = NULL, i = 0;
866 (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
867 i++) {
868 struct resource r[3];
869 struct fs_uart_platform_info cpm_uart_data;
870 const int *id;
871 const char *model;
872
873 memset(r, 0, sizeof(r));
874 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
875
876 ret = of_address_to_resource(np, 0, &r[0]);
877 if (ret)
878 goto err;
879
880 r[0].name = scc_regs;
881
882 ret = of_address_to_resource(np, 1, &r[1]);
883 if (ret)
884 goto err;
885 r[1].name = scc_pram;
886
887 of_irq_to_resource(np, 0, &r[2]);
888
889 cpm_uart_dev =
890 platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
891
892 if (IS_ERR(cpm_uart_dev)) {
893 ret = PTR_ERR(cpm_uart_dev);
894 goto err;
895 }
896
897 id = of_get_property(np, "device-id", NULL);
898 cpm_uart_data.fs_no = *id;
899
900 model = of_get_property(np, "model", NULL);
901 strcpy(cpm_uart_data.fs_type, model);
902
903 cpm_uart_data.uart_clk = ppc_proc_freq;
904
905 cpm_uart_data.tx_num_fifo = 4;
906 cpm_uart_data.tx_buf_size = 32;
907 cpm_uart_data.rx_num_fifo = 4;
908 cpm_uart_data.rx_buf_size = 32;
909 cpm_uart_data.clk_rx = *((u32 *)of_get_property(np,
910 "rx-clock", NULL));
911 cpm_uart_data.clk_tx = *((u32 *)of_get_property(np,
912 "tx-clock", NULL));
913
914 ret =
915 platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
916 sizeof(struct
917 fs_uart_platform_info));
918 if (ret)
919 goto unreg;
920 }
921
922 return 0;
923
924 unreg:
925 platform_device_unregister(cpm_uart_dev);
926 err:
927 return ret;
928 }
929
930 arch_initcall(cpm_uart_of_init);
931 #endif /* CONFIG_CPM2 */
932
933 #ifdef CONFIG_8xx
934
935 extern void init_scc_ioports(struct fs_platform_info*);
936 extern int platform_device_skip(const char *model, int id);
937
938 static int __init fs_enet_mdio_of_init(void)
939 {
940 struct device_node *np;
941 unsigned int i;
942 struct platform_device *mdio_dev;
943 struct resource res;
944 int ret;
945
946 for (np = NULL, i = 0;
947 (np = of_find_compatible_node(np, "mdio", "fs_enet")) != NULL;
948 i++) {
949 struct fs_mii_fec_platform_info mdio_data;
950
951 memset(&res, 0, sizeof(res));
952 memset(&mdio_data, 0, sizeof(mdio_data));
953
954 ret = of_address_to_resource(np, 0, &res);
955 if (ret)
956 goto err;
957
958 mdio_dev =
959 platform_device_register_simple("fsl-cpm-fec-mdio",
960 res.start, &res, 1);
961 if (IS_ERR(mdio_dev)) {
962 ret = PTR_ERR(mdio_dev);
963 goto err;
964 }
965
966 mdio_data.mii_speed = ((((ppc_proc_freq + 4999999) / 2500000) / 2) & 0x3F) << 1;
967
968 ret =
969 platform_device_add_data(mdio_dev, &mdio_data,
970 sizeof(struct fs_mii_fec_platform_info));
971 if (ret)
972 goto unreg;
973 }
974 return 0;
975
976 unreg:
977 platform_device_unregister(mdio_dev);
978 err:
979 return ret;
980 }
981
982 arch_initcall(fs_enet_mdio_of_init);
983
984 static const char *enet_regs = "regs";
985 static const char *enet_pram = "pram";
986 static const char *enet_irq = "interrupt";
987 static char bus_id[9][BUS_ID_SIZE];
988
989 static int __init fs_enet_of_init(void)
990 {
991 struct device_node *np;
992 unsigned int i;
993 struct platform_device *fs_enet_dev = NULL;
994 struct resource res;
995 int ret;
996
997 for (np = NULL, i = 0;
998 (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
999 i++) {
1000 struct resource r[4];
1001 struct device_node *phy = NULL, *mdio = NULL;
1002 struct fs_platform_info fs_enet_data;
1003 const unsigned int *id;
1004 const unsigned int *phy_addr;
1005 const void *mac_addr;
1006 const phandle *ph;
1007 const char *model;
1008
1009 memset(r, 0, sizeof(r));
1010 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
1011
1012 model = of_get_property(np, "model", NULL);
1013 if (model == NULL) {
1014 ret = -ENODEV;
1015 goto unreg;
1016 }
1017
1018 id = of_get_property(np, "device-id", NULL);
1019 fs_enet_data.fs_no = *id;
1020
1021 if (platform_device_skip(model, *id))
1022 continue;
1023
1024 ret = of_address_to_resource(np, 0, &r[0]);
1025 if (ret)
1026 goto err;
1027 r[0].name = enet_regs;
1028
1029 mac_addr = of_get_mac_address(np);
1030 if (mac_addr)
1031 memcpy(fs_enet_data.macaddr, mac_addr, 6);
1032
1033 ph = of_get_property(np, "phy-handle", NULL);
1034 if (ph != NULL)
1035 phy = of_find_node_by_phandle(*ph);
1036
1037 if (phy != NULL) {
1038 phy_addr = of_get_property(phy, "reg", NULL);
1039 fs_enet_data.phy_addr = *phy_addr;
1040 fs_enet_data.has_phy = 1;
1041
1042 mdio = of_get_parent(phy);
1043 ret = of_address_to_resource(mdio, 0, &res);
1044 if (ret) {
1045 of_node_put(phy);
1046 of_node_put(mdio);
1047 goto unreg;
1048 }
1049 }
1050
1051 model = of_get_property(np, "model", NULL);
1052 strcpy(fs_enet_data.fs_type, model);
1053
1054 if (strstr(model, "FEC")) {
1055 r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
1056 r[1].flags = IORESOURCE_IRQ;
1057 r[1].name = enet_irq;
1058
1059 fs_enet_dev =
1060 platform_device_register_simple("fsl-cpm-fec", i, &r[0], 2);
1061
1062 if (IS_ERR(fs_enet_dev)) {
1063 ret = PTR_ERR(fs_enet_dev);
1064 goto err;
1065 }
1066
1067 fs_enet_data.rx_ring = 128;
1068 fs_enet_data.tx_ring = 16;
1069 fs_enet_data.rx_copybreak = 240;
1070 fs_enet_data.use_napi = 1;
1071 fs_enet_data.napi_weight = 17;
1072
1073 snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%x:%02x",
1074 (u32)res.start, fs_enet_data.phy_addr);
1075 fs_enet_data.bus_id = (char*)&bus_id[i];
1076 fs_enet_data.init_ioports = init_fec_ioports;
1077 }
1078 if (strstr(model, "SCC")) {
1079 ret = of_address_to_resource(np, 1, &r[1]);
1080 if (ret)
1081 goto err;
1082 r[1].name = enet_pram;
1083
1084 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1085 r[2].flags = IORESOURCE_IRQ;
1086 r[2].name = enet_irq;
1087
1088 fs_enet_dev =
1089 platform_device_register_simple("fsl-cpm-scc", i, &r[0], 3);
1090
1091 if (IS_ERR(fs_enet_dev)) {
1092 ret = PTR_ERR(fs_enet_dev);
1093 goto err;
1094 }
1095
1096 fs_enet_data.rx_ring = 64;
1097 fs_enet_data.tx_ring = 8;
1098 fs_enet_data.rx_copybreak = 240;
1099 fs_enet_data.use_napi = 1;
1100 fs_enet_data.napi_weight = 17;
1101
1102 snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%s", "fixed@10:1");
1103 fs_enet_data.bus_id = (char*)&bus_id[i];
1104 fs_enet_data.init_ioports = init_scc_ioports;
1105 }
1106
1107 of_node_put(phy);
1108 of_node_put(mdio);
1109
1110 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
1111 sizeof(struct
1112 fs_platform_info));
1113 if (ret)
1114 goto unreg;
1115 }
1116 return 0;
1117
1118 unreg:
1119 platform_device_unregister(fs_enet_dev);
1120 err:
1121 return ret;
1122 }
1123
1124 arch_initcall(fs_enet_of_init);
1125
1126 static int __init fsl_pcmcia_of_init(void)
1127 {
1128 struct device_node *np = NULL;
1129 /*
1130 * Register all the devices which type is "pcmcia"
1131 */
1132 while ((np = of_find_compatible_node(np,
1133 "pcmcia", "fsl,pq-pcmcia")) != NULL)
1134 of_platform_device_create(np, "m8xx-pcmcia", NULL);
1135 return 0;
1136 }
1137
1138 arch_initcall(fsl_pcmcia_of_init);
1139
1140 static const char *smc_regs = "regs";
1141 static const char *smc_pram = "pram";
1142
1143 static int __init cpm_smc_uart_of_init(void)
1144 {
1145 struct device_node *np;
1146 unsigned int i;
1147 struct platform_device *cpm_uart_dev;
1148 int ret;
1149
1150 for (np = NULL, i = 0;
1151 (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
1152 i++) {
1153 struct resource r[3];
1154 struct fs_uart_platform_info cpm_uart_data;
1155 const int *id;
1156 const char *model;
1157
1158 memset(r, 0, sizeof(r));
1159 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
1160
1161 ret = of_address_to_resource(np, 0, &r[0]);
1162 if (ret)
1163 goto err;
1164
1165 r[0].name = smc_regs;
1166
1167 ret = of_address_to_resource(np, 1, &r[1]);
1168 if (ret)
1169 goto err;
1170 r[1].name = smc_pram;
1171
1172 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1173 r[2].flags = IORESOURCE_IRQ;
1174
1175 cpm_uart_dev =
1176 platform_device_register_simple("fsl-cpm-smc:uart", i, &r[0], 3);
1177
1178 if (IS_ERR(cpm_uart_dev)) {
1179 ret = PTR_ERR(cpm_uart_dev);
1180 goto err;
1181 }
1182
1183 model = of_get_property(np, "model", NULL);
1184 strcpy(cpm_uart_data.fs_type, model);
1185
1186 id = of_get_property(np, "device-id", NULL);
1187 cpm_uart_data.fs_no = *id;
1188 cpm_uart_data.uart_clk = ppc_proc_freq;
1189
1190 cpm_uart_data.tx_num_fifo = 4;
1191 cpm_uart_data.tx_buf_size = 32;
1192 cpm_uart_data.rx_num_fifo = 4;
1193 cpm_uart_data.rx_buf_size = 32;
1194
1195 ret =
1196 platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
1197 sizeof(struct
1198 fs_uart_platform_info));
1199 if (ret)
1200 goto unreg;
1201 }
1202
1203 return 0;
1204
1205 unreg:
1206 platform_device_unregister(cpm_uart_dev);
1207 err:
1208 return ret;
1209 }
1210
1211 arch_initcall(cpm_smc_uart_of_init);
1212
1213 #endif /* CONFIG_8xx */
1214 #endif /* CONFIG_PPC_CPM_NEW_BINDING */
1215
1216 int __init fsl_spi_init(struct spi_board_info *board_infos,
1217 unsigned int num_board_infos,
1218 void (*activate_cs)(u8 cs, u8 polarity),
1219 void (*deactivate_cs)(u8 cs, u8 polarity))
1220 {
1221 struct device_node *np;
1222 unsigned int i;
1223 const u32 *sysclk;
1224
1225 /* SPI controller is either clocked from QE or SoC clock */
1226 np = of_find_node_by_type(NULL, "qe");
1227 if (!np)
1228 np = of_find_node_by_type(NULL, "soc");
1229
1230 if (!np)
1231 return -ENODEV;
1232
1233 sysclk = of_get_property(np, "bus-frequency", NULL);
1234 if (!sysclk)
1235 return -ENODEV;
1236
1237 for (np = NULL, i = 1;
1238 (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
1239 i++) {
1240 int ret = 0;
1241 unsigned int j;
1242 const void *prop;
1243 struct resource res[2];
1244 struct platform_device *pdev;
1245 struct fsl_spi_platform_data pdata = {
1246 .activate_cs = activate_cs,
1247 .deactivate_cs = deactivate_cs,
1248 };
1249
1250 memset(res, 0, sizeof(res));
1251
1252 pdata.sysclk = *sysclk;
1253
1254 prop = of_get_property(np, "reg", NULL);
1255 if (!prop)
1256 goto err;
1257 pdata.bus_num = *(u32 *)prop;
1258
1259 prop = of_get_property(np, "mode", NULL);
1260 if (prop && !strcmp(prop, "cpu-qe"))
1261 pdata.qe_mode = 1;
1262
1263 for (j = 0; j < num_board_infos; j++) {
1264 if (board_infos[j].bus_num == pdata.bus_num)
1265 pdata.max_chipselect++;
1266 }
1267
1268 if (!pdata.max_chipselect)
1269 goto err;
1270
1271 ret = of_address_to_resource(np, 0, &res[0]);
1272 if (ret)
1273 goto err;
1274
1275 ret = of_irq_to_resource(np, 0, &res[1]);
1276 if (ret == NO_IRQ)
1277 goto err;
1278
1279 pdev = platform_device_alloc("mpc83xx_spi", i);
1280 if (!pdev)
1281 goto err;
1282
1283 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
1284 if (ret)
1285 goto unreg;
1286
1287 ret = platform_device_add_resources(pdev, res,
1288 ARRAY_SIZE(res));
1289 if (ret)
1290 goto unreg;
1291
1292 ret = platform_device_register(pdev);
1293 if (ret)
1294 goto unreg;
1295
1296 continue;
1297 unreg:
1298 platform_device_del(pdev);
1299 err:
1300 continue;
1301 }
1302
1303 return spi_register_board_info(board_infos, num_board_infos);
1304 }
1305
1306 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
1307 static __be32 __iomem *rstcr;
1308
1309 static int __init setup_rstcr(void)
1310 {
1311 struct device_node *np;
1312 np = of_find_node_by_name(NULL, "global-utilities");
1313 if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
1314 const u32 *prop = of_get_property(np, "reg", NULL);
1315 if (prop) {
1316 /* map reset control register
1317 * 0xE00B0 is offset of reset control register
1318 */
1319 rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
1320 if (!rstcr)
1321 printk (KERN_EMERG "Error: reset control "
1322 "register not mapped!\n");
1323 }
1324 } else
1325 printk (KERN_INFO "rstcr compatible register does not exist!\n");
1326 if (np)
1327 of_node_put(np);
1328 return 0;
1329 }
1330
1331 arch_initcall(setup_rstcr);
1332
1333 void fsl_rstcr_restart(char *cmd)
1334 {
1335 local_irq_disable();
1336 if (rstcr)
1337 /* set reset control register */
1338 out_be32(rstcr, 0x2); /* HRESET_REQ */
1339
1340 while (1) ;
1341 }
1342 #endif
Support for the Chinese Samsung S3C2440 based development boards