Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
[linux-2.6] / arch / powerpc / sysdev / fsl_soc.c
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/phy_fixed.h>
28 #include <linux/spi/spi.h>
29 #include <linux/fsl_devices.h>
30 #include <linux/fs_enet_pd.h>
31 #include <linux/fs_uart_pd.h>
32
33 #include <asm/system.h>
34 #include <asm/atomic.h>
35 #include <asm/io.h>
36 #include <asm/irq.h>
37 #include <asm/time.h>
38 #include <asm/prom.h>
39 #include <sysdev/fsl_soc.h>
40 #include <mm/mmu_decl.h>
41 #include <asm/cpm2.h>
42
43 extern void init_fcc_ioports(struct fs_platform_info*);
44 extern void init_fec_ioports(struct fs_platform_info*);
45 extern void init_smc_ioports(struct fs_uart_platform_info*);
46 static phys_addr_t immrbase = -1;
47
48 phys_addr_t get_immrbase(void)
49 {
50         struct device_node *soc;
51
52         if (immrbase != -1)
53                 return immrbase;
54
55         soc = of_find_node_by_type(NULL, "soc");
56         if (soc) {
57                 int size;
58                 u32 naddr;
59                 const u32 *prop = of_get_property(soc, "#address-cells", &size);
60
61                 if (prop && size == 4)
62                         naddr = *prop;
63                 else
64                         naddr = 2;
65
66                 prop = of_get_property(soc, "ranges", &size);
67                 if (prop)
68                         immrbase = of_translate_address(soc, prop + naddr);
69
70                 of_node_put(soc);
71         }
72
73         return immrbase;
74 }
75
76 EXPORT_SYMBOL(get_immrbase);
77
78 static u32 sysfreq = -1;
79
80 u32 fsl_get_sys_freq(void)
81 {
82         struct device_node *soc;
83         const u32 *prop;
84         int size;
85
86         if (sysfreq != -1)
87                 return sysfreq;
88
89         soc = of_find_node_by_type(NULL, "soc");
90         if (!soc)
91                 return -1;
92
93         prop = of_get_property(soc, "clock-frequency", &size);
94         if (!prop || size != sizeof(*prop) || *prop == 0)
95                 prop = of_get_property(soc, "bus-frequency", &size);
96
97         if (prop && size == sizeof(*prop))
98                 sysfreq = *prop;
99
100         of_node_put(soc);
101         return sysfreq;
102 }
103 EXPORT_SYMBOL(fsl_get_sys_freq);
104
105 #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
106
107 static u32 brgfreq = -1;
108
109 u32 get_brgfreq(void)
110 {
111         struct device_node *node;
112         const unsigned int *prop;
113         int size;
114
115         if (brgfreq != -1)
116                 return brgfreq;
117
118         node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
119         if (node) {
120                 prop = of_get_property(node, "clock-frequency", &size);
121                 if (prop && size == 4)
122                         brgfreq = *prop;
123
124                 of_node_put(node);
125                 return brgfreq;
126         }
127
128         /* Legacy device binding -- will go away when no users are left. */
129         node = of_find_node_by_type(NULL, "cpm");
130         if (!node)
131                 node = of_find_compatible_node(NULL, NULL, "fsl,qe");
132         if (!node)
133                 node = of_find_node_by_type(NULL, "qe");
134
135         if (node) {
136                 prop = of_get_property(node, "brg-frequency", &size);
137                 if (prop && size == 4)
138                         brgfreq = *prop;
139
140                 if (brgfreq == -1 || brgfreq == 0) {
141                         prop = of_get_property(node, "bus-frequency", &size);
142                         if (prop && size == 4)
143                                 brgfreq = *prop / 2;
144                 }
145                 of_node_put(node);
146         }
147
148         return brgfreq;
149 }
150
151 EXPORT_SYMBOL(get_brgfreq);
152
153 static u32 fs_baudrate = -1;
154
155 u32 get_baudrate(void)
156 {
157         struct device_node *node;
158
159         if (fs_baudrate != -1)
160                 return fs_baudrate;
161
162         node = of_find_node_by_type(NULL, "serial");
163         if (node) {
164                 int size;
165                 const unsigned int *prop = of_get_property(node,
166                                 "current-speed", &size);
167
168                 if (prop)
169                         fs_baudrate = *prop;
170                 of_node_put(node);
171         }
172
173         return fs_baudrate;
174 }
175
176 EXPORT_SYMBOL(get_baudrate);
177 #endif /* CONFIG_CPM2 */
178
179 #ifdef CONFIG_FIXED_PHY
180 static int __init of_add_fixed_phys(void)
181 {
182         int ret;
183         struct device_node *np;
184         u32 *fixed_link;
185         struct fixed_phy_status status = {};
186
187         for_each_node_by_name(np, "ethernet") {
188                 fixed_link  = (u32 *)of_get_property(np, "fixed-link", NULL);
189                 if (!fixed_link)
190                         continue;
191
192                 status.link = 1;
193                 status.duplex = fixed_link[1];
194                 status.speed = fixed_link[2];
195                 status.pause = fixed_link[3];
196                 status.asym_pause = fixed_link[4];
197
198                 ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
199                 if (ret) {
200                         of_node_put(np);
201                         return ret;
202                 }
203         }
204
205         return 0;
206 }
207 arch_initcall(of_add_fixed_phys);
208 #endif /* CONFIG_FIXED_PHY */
209
210 static int gfar_mdio_of_init_one(struct device_node *np)
211 {
212         int k;
213         struct device_node *child = NULL;
214         struct gianfar_mdio_data mdio_data;
215         struct platform_device *mdio_dev;
216         struct resource res;
217         int ret;
218
219         memset(&res, 0, sizeof(res));
220         memset(&mdio_data, 0, sizeof(mdio_data));
221
222         ret = of_address_to_resource(np, 0, &res);
223         if (ret)
224                 return ret;
225
226         mdio_dev = platform_device_register_simple("fsl-gianfar_mdio",
227                         res.start&0xfffff, &res, 1);
228         if (IS_ERR(mdio_dev))
229                 return PTR_ERR(mdio_dev);
230
231         for (k = 0; k < 32; k++)
232                 mdio_data.irq[k] = PHY_POLL;
233
234         while ((child = of_get_next_child(np, child)) != NULL) {
235                 int irq = irq_of_parse_and_map(child, 0);
236                 if (irq != NO_IRQ) {
237                         const u32 *id = of_get_property(child, "reg", NULL);
238                         mdio_data.irq[*id] = irq;
239                 }
240         }
241
242         ret = platform_device_add_data(mdio_dev, &mdio_data,
243                                 sizeof(struct gianfar_mdio_data));
244         if (ret)
245                 platform_device_unregister(mdio_dev);
246
247         return ret;
248 }
249
250 static int __init gfar_mdio_of_init(void)
251 {
252         struct device_node *np = NULL;
253
254         for_each_compatible_node(np, NULL, "fsl,gianfar-mdio")
255                 gfar_mdio_of_init_one(np);
256
257         /* try the deprecated version */
258         for_each_compatible_node(np, "mdio", "gianfar");
259                 gfar_mdio_of_init_one(np);
260
261         return 0;
262 }
263
264 arch_initcall(gfar_mdio_of_init);
265
266 static const char *gfar_tx_intr = "tx";
267 static const char *gfar_rx_intr = "rx";
268 static const char *gfar_err_intr = "error";
269
270 static int __init gfar_of_init(void)
271 {
272         struct device_node *np;
273         unsigned int i;
274         struct platform_device *gfar_dev;
275         struct resource res;
276         int ret;
277
278         for (np = NULL, i = 0;
279              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
280              i++) {
281                 struct resource r[4];
282                 struct device_node *phy, *mdio;
283                 struct gianfar_platform_data gfar_data;
284                 const unsigned int *id;
285                 const char *model;
286                 const char *ctype;
287                 const void *mac_addr;
288                 const phandle *ph;
289                 int n_res = 2;
290
291                 if (!of_device_is_available(np))
292                         continue;
293
294                 memset(r, 0, sizeof(r));
295                 memset(&gfar_data, 0, sizeof(gfar_data));
296
297                 ret = of_address_to_resource(np, 0, &r[0]);
298                 if (ret)
299                         goto err;
300
301                 of_irq_to_resource(np, 0, &r[1]);
302
303                 model = of_get_property(np, "model", NULL);
304
305                 /* If we aren't the FEC we have multiple interrupts */
306                 if (model && strcasecmp(model, "FEC")) {
307                         r[1].name = gfar_tx_intr;
308
309                         r[2].name = gfar_rx_intr;
310                         of_irq_to_resource(np, 1, &r[2]);
311
312                         r[3].name = gfar_err_intr;
313                         of_irq_to_resource(np, 2, &r[3]);
314
315                         n_res += 2;
316                 }
317
318                 gfar_dev =
319                     platform_device_register_simple("fsl-gianfar", i, &r[0],
320                                                     n_res);
321
322                 if (IS_ERR(gfar_dev)) {
323                         ret = PTR_ERR(gfar_dev);
324                         goto err;
325                 }
326
327                 mac_addr = of_get_mac_address(np);
328                 if (mac_addr)
329                         memcpy(gfar_data.mac_addr, mac_addr, 6);
330
331                 if (model && !strcasecmp(model, "TSEC"))
332                         gfar_data.device_flags =
333                             FSL_GIANFAR_DEV_HAS_GIGABIT |
334                             FSL_GIANFAR_DEV_HAS_COALESCE |
335                             FSL_GIANFAR_DEV_HAS_RMON |
336                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
337                 if (model && !strcasecmp(model, "eTSEC"))
338                         gfar_data.device_flags =
339                             FSL_GIANFAR_DEV_HAS_GIGABIT |
340                             FSL_GIANFAR_DEV_HAS_COALESCE |
341                             FSL_GIANFAR_DEV_HAS_RMON |
342                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
343                             FSL_GIANFAR_DEV_HAS_CSUM |
344                             FSL_GIANFAR_DEV_HAS_VLAN |
345                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
346
347                 ctype = of_get_property(np, "phy-connection-type", NULL);
348
349                 /* We only care about rgmii-id.  The rest are autodetected */
350                 if (ctype && !strcmp(ctype, "rgmii-id"))
351                         gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
352                 else
353                         gfar_data.interface = PHY_INTERFACE_MODE_MII;
354
355                 if (of_get_property(np, "fsl,magic-packet", NULL))
356                         gfar_data.device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET;
357
358                 ph = of_get_property(np, "phy-handle", NULL);
359                 if (ph == NULL) {
360                         u32 *fixed_link;
361
362                         fixed_link = (u32 *)of_get_property(np, "fixed-link",
363                                                            NULL);
364                         if (!fixed_link) {
365                                 ret = -ENODEV;
366                                 goto unreg;
367                         }
368
369                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "0");
370                         gfar_data.phy_id = fixed_link[0];
371                 } else {
372                         phy = of_find_node_by_phandle(*ph);
373
374                         if (phy == NULL) {
375                                 ret = -ENODEV;
376                                 goto unreg;
377                         }
378
379                         mdio = of_get_parent(phy);
380
381                         id = of_get_property(phy, "reg", NULL);
382                         ret = of_address_to_resource(mdio, 0, &res);
383                         if (ret) {
384                                 of_node_put(phy);
385                                 of_node_put(mdio);
386                                 goto unreg;
387                         }
388
389                         gfar_data.phy_id = *id;
390                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "%llx",
391                                  (unsigned long long)res.start&0xfffff);
392
393                         of_node_put(phy);
394                         of_node_put(mdio);
395                 }
396
397                 ret =
398                     platform_device_add_data(gfar_dev, &gfar_data,
399                                              sizeof(struct
400                                                     gianfar_platform_data));
401                 if (ret)
402                         goto unreg;
403         }
404
405         return 0;
406
407 unreg:
408         platform_device_unregister(gfar_dev);
409 err:
410         return ret;
411 }
412
413 arch_initcall(gfar_of_init);
414
415
416 #ifdef CONFIG_PPC_83xx
417 static int __init mpc83xx_wdt_init(void)
418 {
419         struct resource r;
420         struct device_node *np;
421         struct platform_device *dev;
422         u32 freq = fsl_get_sys_freq();
423         int ret;
424
425         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
426
427         if (!np) {
428                 ret = -ENODEV;
429                 goto nodev;
430         }
431
432         memset(&r, 0, sizeof(r));
433
434         ret = of_address_to_resource(np, 0, &r);
435         if (ret)
436                 goto err;
437
438         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
439         if (IS_ERR(dev)) {
440                 ret = PTR_ERR(dev);
441                 goto err;
442         }
443
444         ret = platform_device_add_data(dev, &freq, sizeof(freq));
445         if (ret)
446                 goto unreg;
447
448         of_node_put(np);
449         return 0;
450
451 unreg:
452         platform_device_unregister(dev);
453 err:
454         of_node_put(np);
455 nodev:
456         return ret;
457 }
458
459 arch_initcall(mpc83xx_wdt_init);
460 #endif
461
462 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
463 {
464         if (!phy_type)
465                 return FSL_USB2_PHY_NONE;
466         if (!strcasecmp(phy_type, "ulpi"))
467                 return FSL_USB2_PHY_ULPI;
468         if (!strcasecmp(phy_type, "utmi"))
469                 return FSL_USB2_PHY_UTMI;
470         if (!strcasecmp(phy_type, "utmi_wide"))
471                 return FSL_USB2_PHY_UTMI_WIDE;
472         if (!strcasecmp(phy_type, "serial"))
473                 return FSL_USB2_PHY_SERIAL;
474
475         return FSL_USB2_PHY_NONE;
476 }
477
478 static int __init fsl_usb_of_init(void)
479 {
480         struct device_node *np;
481         unsigned int i = 0;
482         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
483                 *usb_dev_dr_client = NULL;
484         int ret;
485
486         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
487                 struct resource r[2];
488                 struct fsl_usb2_platform_data usb_data;
489                 const unsigned char *prop = NULL;
490
491                 memset(&r, 0, sizeof(r));
492                 memset(&usb_data, 0, sizeof(usb_data));
493
494                 ret = of_address_to_resource(np, 0, &r[0]);
495                 if (ret)
496                         goto err;
497
498                 of_irq_to_resource(np, 0, &r[1]);
499
500                 usb_dev_mph =
501                     platform_device_register_simple("fsl-ehci", i, r, 2);
502                 if (IS_ERR(usb_dev_mph)) {
503                         ret = PTR_ERR(usb_dev_mph);
504                         goto err;
505                 }
506
507                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
508                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
509
510                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
511
512                 prop = of_get_property(np, "port0", NULL);
513                 if (prop)
514                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
515
516                 prop = of_get_property(np, "port1", NULL);
517                 if (prop)
518                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
519
520                 prop = of_get_property(np, "phy_type", NULL);
521                 usb_data.phy_mode = determine_usb_phy(prop);
522
523                 ret =
524                     platform_device_add_data(usb_dev_mph, &usb_data,
525                                              sizeof(struct
526                                                     fsl_usb2_platform_data));
527                 if (ret)
528                         goto unreg_mph;
529                 i++;
530         }
531
532         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
533                 struct resource r[2];
534                 struct fsl_usb2_platform_data usb_data;
535                 const unsigned char *prop = NULL;
536
537                 memset(&r, 0, sizeof(r));
538                 memset(&usb_data, 0, sizeof(usb_data));
539
540                 ret = of_address_to_resource(np, 0, &r[0]);
541                 if (ret)
542                         goto unreg_mph;
543
544                 of_irq_to_resource(np, 0, &r[1]);
545
546                 prop = of_get_property(np, "dr_mode", NULL);
547
548                 if (!prop || !strcmp(prop, "host")) {
549                         usb_data.operating_mode = FSL_USB2_DR_HOST;
550                         usb_dev_dr_host = platform_device_register_simple(
551                                         "fsl-ehci", i, r, 2);
552                         if (IS_ERR(usb_dev_dr_host)) {
553                                 ret = PTR_ERR(usb_dev_dr_host);
554                                 goto err;
555                         }
556                 } else if (prop && !strcmp(prop, "peripheral")) {
557                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
558                         usb_dev_dr_client = platform_device_register_simple(
559                                         "fsl-usb2-udc", i, r, 2);
560                         if (IS_ERR(usb_dev_dr_client)) {
561                                 ret = PTR_ERR(usb_dev_dr_client);
562                                 goto err;
563                         }
564                 } else if (prop && !strcmp(prop, "otg")) {
565                         usb_data.operating_mode = FSL_USB2_DR_OTG;
566                         usb_dev_dr_host = platform_device_register_simple(
567                                         "fsl-ehci", i, r, 2);
568                         if (IS_ERR(usb_dev_dr_host)) {
569                                 ret = PTR_ERR(usb_dev_dr_host);
570                                 goto err;
571                         }
572                         usb_dev_dr_client = platform_device_register_simple(
573                                         "fsl-usb2-udc", i, r, 2);
574                         if (IS_ERR(usb_dev_dr_client)) {
575                                 ret = PTR_ERR(usb_dev_dr_client);
576                                 goto err;
577                         }
578                 } else {
579                         ret = -EINVAL;
580                         goto err;
581                 }
582
583                 prop = of_get_property(np, "phy_type", NULL);
584                 usb_data.phy_mode = determine_usb_phy(prop);
585
586                 if (usb_dev_dr_host) {
587                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
588                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
589                                 dev.coherent_dma_mask;
590                         if ((ret = platform_device_add_data(usb_dev_dr_host,
591                                                 &usb_data, sizeof(struct
592                                                 fsl_usb2_platform_data))))
593                                 goto unreg_dr;
594                 }
595                 if (usb_dev_dr_client) {
596                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
597                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
598                                 dev.coherent_dma_mask;
599                         if ((ret = platform_device_add_data(usb_dev_dr_client,
600                                                 &usb_data, sizeof(struct
601                                                 fsl_usb2_platform_data))))
602                                 goto unreg_dr;
603                 }
604                 i++;
605         }
606         return 0;
607
608 unreg_dr:
609         if (usb_dev_dr_host)
610                 platform_device_unregister(usb_dev_dr_host);
611         if (usb_dev_dr_client)
612                 platform_device_unregister(usb_dev_dr_client);
613 unreg_mph:
614         if (usb_dev_mph)
615                 platform_device_unregister(usb_dev_mph);
616 err:
617         return ret;
618 }
619
620 arch_initcall(fsl_usb_of_init);
621
622 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
623                                    struct spi_board_info *board_infos,
624                                    unsigned int num_board_infos,
625                                    void (*activate_cs)(u8 cs, u8 polarity),
626                                    void (*deactivate_cs)(u8 cs, u8 polarity))
627 {
628         struct device_node *np;
629         unsigned int i = 0;
630
631         for_each_compatible_node(np, type, compatible) {
632                 int ret;
633                 unsigned int j;
634                 const void *prop;
635                 struct resource res[2];
636                 struct platform_device *pdev;
637                 struct fsl_spi_platform_data pdata = {
638                         .activate_cs = activate_cs,
639                         .deactivate_cs = deactivate_cs,
640                 };
641
642                 memset(res, 0, sizeof(res));
643
644                 pdata.sysclk = sysclk;
645
646                 prop = of_get_property(np, "reg", NULL);
647                 if (!prop)
648                         goto err;
649                 pdata.bus_num = *(u32 *)prop;
650
651                 prop = of_get_property(np, "cell-index", NULL);
652                 if (prop)
653                         i = *(u32 *)prop;
654
655                 prop = of_get_property(np, "mode", NULL);
656                 if (prop && !strcmp(prop, "cpu-qe"))
657                         pdata.qe_mode = 1;
658
659                 for (j = 0; j < num_board_infos; j++) {
660                         if (board_infos[j].bus_num == pdata.bus_num)
661                                 pdata.max_chipselect++;
662                 }
663
664                 if (!pdata.max_chipselect)
665                         continue;
666
667                 ret = of_address_to_resource(np, 0, &res[0]);
668                 if (ret)
669                         goto err;
670
671                 ret = of_irq_to_resource(np, 0, &res[1]);
672                 if (ret == NO_IRQ)
673                         goto err;
674
675                 pdev = platform_device_alloc("mpc83xx_spi", i);
676                 if (!pdev)
677                         goto err;
678
679                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
680                 if (ret)
681                         goto unreg;
682
683                 ret = platform_device_add_resources(pdev, res,
684                                                     ARRAY_SIZE(res));
685                 if (ret)
686                         goto unreg;
687
688                 ret = platform_device_add(pdev);
689                 if (ret)
690                         goto unreg;
691
692                 goto next;
693 unreg:
694                 platform_device_del(pdev);
695 err:
696                 pr_err("%s: registration failed\n", np->full_name);
697 next:
698                 i++;
699         }
700
701         return i;
702 }
703
704 int __init fsl_spi_init(struct spi_board_info *board_infos,
705                         unsigned int num_board_infos,
706                         void (*activate_cs)(u8 cs, u8 polarity),
707                         void (*deactivate_cs)(u8 cs, u8 polarity))
708 {
709         u32 sysclk = -1;
710         int ret;
711
712 #ifdef CONFIG_QUICC_ENGINE
713         /* SPI controller is either clocked from QE or SoC clock */
714         sysclk = get_brgfreq();
715 #endif
716         if (sysclk == -1) {
717                 sysclk = fsl_get_sys_freq();
718                 if (sysclk == -1)
719                         return -ENODEV;
720         }
721
722         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
723                                num_board_infos, activate_cs, deactivate_cs);
724         if (!ret)
725                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
726                                  num_board_infos, activate_cs, deactivate_cs);
727
728         return spi_register_board_info(board_infos, num_board_infos);
729 }
730
731 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
732 static __be32 __iomem *rstcr;
733
734 static int __init setup_rstcr(void)
735 {
736         struct device_node *np;
737         np = of_find_node_by_name(NULL, "global-utilities");
738         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
739                 const u32 *prop = of_get_property(np, "reg", NULL);
740                 if (prop) {
741                         /* map reset control register
742                          * 0xE00B0 is offset of reset control register
743                          */
744                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
745                         if (!rstcr)
746                                 printk (KERN_EMERG "Error: reset control "
747                                                 "register not mapped!\n");
748                 }
749         } else
750                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
751         if (np)
752                 of_node_put(np);
753         return 0;
754 }
755
756 arch_initcall(setup_rstcr);
757
758 void fsl_rstcr_restart(char *cmd)
759 {
760         local_irq_disable();
761         if (rstcr)
762                 /* set reset control register */
763                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
764
765         while (1) ;
766 }
767 #endif
768
769 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
770 struct platform_diu_data_ops diu_ops = {
771         .diu_size = 1280 * 1024 * 4,    /* default one 1280x1024 buffer */
772 };
773 EXPORT_SYMBOL(diu_ops);
774
775 int __init preallocate_diu_videomemory(void)
776 {
777         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
778
779         diu_ops.diu_mem = __alloc_bootmem(diu_ops.diu_size, 8, 0);
780         if (!diu_ops.diu_mem) {
781                 printk(KERN_ERR "fsl-diu: cannot allocate %lu bytes\n",
782                         diu_ops.diu_size);
783                 return -ENOMEM;
784         }
785
786         pr_debug("diu_mem=%p\n", diu_ops.diu_mem);
787
788         rh_init(&diu_ops.diu_rh_info, 4096, ARRAY_SIZE(diu_ops.diu_rh_block),
789                 diu_ops.diu_rh_block);
790         return rh_attach_region(&diu_ops.diu_rh_info,
791                                 (unsigned long) diu_ops.diu_mem,
792                                 diu_ops.diu_size);
793 }
794
795 static int __init early_parse_diufb(char *p)
796 {
797         if (!p)
798                 return 1;
799
800         diu_ops.diu_size = _ALIGN_UP(memparse(p, &p), 8);
801
802         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
803
804         return 0;
805 }
806 early_param("diufb", early_parse_diufb);
807
808 #endif