Commit | Line | Data |
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eed32001 KG |
1 | /* |
2 | * FSL SoC setup code | |
3 | * | |
4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | |
5 | * | |
fba43665 VB |
6 | * 2006 (c) MontaVista Software, Inc. |
7 | * Vitaly Bordug <vbordug@ru.mvista.com> | |
8 | * | |
eed32001 KG |
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 | ||
eed32001 KG |
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> | |
c026c987 | 25 | #include <linux/of.h> |
0af666fa | 26 | #include <linux/of_platform.h> |
a9b14973 | 27 | #include <linux/phy.h> |
a21e282a | 28 | #include <linux/phy_fixed.h> |
26f6cb99 | 29 | #include <linux/spi/spi.h> |
eed32001 | 30 | #include <linux/fsl_devices.h> |
fba43665 VB |
31 | #include <linux/fs_enet_pd.h> |
32 | #include <linux/fs_uart_pd.h> | |
eed32001 KG |
33 | |
34 | #include <asm/system.h> | |
35 | #include <asm/atomic.h> | |
36 | #include <asm/io.h> | |
37 | #include <asm/irq.h> | |
fba43665 | 38 | #include <asm/time.h> |
eed32001 KG |
39 | #include <asm/prom.h> |
40 | #include <sysdev/fsl_soc.h> | |
41 | #include <mm/mmu_decl.h> | |
fba43665 | 42 | #include <asm/cpm2.h> |
eed32001 | 43 | |
d3465c92 | 44 | extern void init_fcc_ioports(struct fs_platform_info*); |
88bdc6f0 VB |
45 | extern void init_fec_ioports(struct fs_platform_info*); |
46 | extern void init_smc_ioports(struct fs_uart_platform_info*); | |
eed32001 KG |
47 | static phys_addr_t immrbase = -1; |
48 | ||
49 | phys_addr_t get_immrbase(void) | |
50 | { | |
51 | struct device_node *soc; | |
52 | ||
53 | if (immrbase != -1) | |
54 | return immrbase; | |
55 | ||
56 | soc = of_find_node_by_type(NULL, "soc"); | |
2fb07d77 | 57 | if (soc) { |
f9234736 | 58 | int size; |
6c7e072b SW |
59 | u32 naddr; |
60 | const u32 *prop = of_get_property(soc, "#address-cells", &size); | |
fba43665 | 61 | |
6c7e072b SW |
62 | if (prop && size == 4) |
63 | naddr = *prop; | |
64 | else | |
65 | naddr = 2; | |
66 | ||
67 | prop = of_get_property(soc, "ranges", &size); | |
fba43665 | 68 | if (prop) |
6c7e072b SW |
69 | immrbase = of_translate_address(soc, prop + naddr); |
70 | ||
eed32001 | 71 | of_node_put(soc); |
f9234736 | 72 | } |
eed32001 KG |
73 | |
74 | return immrbase; | |
75 | } | |
eed32001 | 76 | |
2fb07d77 | 77 | EXPORT_SYMBOL(get_immrbase); |
eed32001 | 78 | |
38664095 SW |
79 | static u32 sysfreq = -1; |
80 | ||
81 | u32 fsl_get_sys_freq(void) | |
82 | { | |
83 | struct device_node *soc; | |
84 | const u32 *prop; | |
85 | int size; | |
86 | ||
87 | if (sysfreq != -1) | |
88 | return sysfreq; | |
89 | ||
90 | soc = of_find_node_by_type(NULL, "soc"); | |
91 | if (!soc) | |
92 | return -1; | |
93 | ||
94 | prop = of_get_property(soc, "clock-frequency", &size); | |
95 | if (!prop || size != sizeof(*prop) || *prop == 0) | |
96 | prop = of_get_property(soc, "bus-frequency", &size); | |
97 | ||
98 | if (prop && size == sizeof(*prop)) | |
99 | sysfreq = *prop; | |
100 | ||
101 | of_node_put(soc); | |
102 | return sysfreq; | |
103 | } | |
104 | EXPORT_SYMBOL(fsl_get_sys_freq); | |
105 | ||
59a0ea50 | 106 | #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx) |
fba43665 VB |
107 | |
108 | static u32 brgfreq = -1; | |
109 | ||
110 | u32 get_brgfreq(void) | |
111 | { | |
112 | struct device_node *node; | |
6d817aa7 SW |
113 | const unsigned int *prop; |
114 | int size; | |
fba43665 VB |
115 | |
116 | if (brgfreq != -1) | |
117 | return brgfreq; | |
118 | ||
6d817aa7 | 119 | node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg"); |
fba43665 | 120 | if (node) { |
6d817aa7 SW |
121 | prop = of_get_property(node, "clock-frequency", &size); |
122 | if (prop && size == 4) | |
123 | brgfreq = *prop; | |
124 | ||
125 | of_node_put(node); | |
126 | return brgfreq; | |
127 | } | |
fba43665 | 128 | |
6d817aa7 SW |
129 | /* Legacy device binding -- will go away when no users are left. */ |
130 | node = of_find_node_by_type(NULL, "cpm"); | |
59a0ea50 AV |
131 | if (!node) |
132 | node = of_find_compatible_node(NULL, NULL, "fsl,qe"); | |
133 | if (!node) | |
134 | node = of_find_node_by_type(NULL, "qe"); | |
135 | ||
6d817aa7 SW |
136 | if (node) { |
137 | prop = of_get_property(node, "brg-frequency", &size); | |
f9234736 | 138 | if (prop && size == 4) |
fba43665 | 139 | brgfreq = *prop; |
f9234736 | 140 | |
59a0ea50 AV |
141 | if (brgfreq == -1 || brgfreq == 0) { |
142 | prop = of_get_property(node, "bus-frequency", &size); | |
143 | if (prop && size == 4) | |
144 | brgfreq = *prop / 2; | |
145 | } | |
fba43665 | 146 | of_node_put(node); |
f9234736 | 147 | } |
fba43665 VB |
148 | |
149 | return brgfreq; | |
150 | } | |
151 | ||
152 | EXPORT_SYMBOL(get_brgfreq); | |
153 | ||
154 | static u32 fs_baudrate = -1; | |
155 | ||
156 | u32 get_baudrate(void) | |
157 | { | |
158 | struct device_node *node; | |
159 | ||
160 | if (fs_baudrate != -1) | |
161 | return fs_baudrate; | |
162 | ||
163 | node = of_find_node_by_type(NULL, "serial"); | |
164 | if (node) { | |
f9234736 | 165 | int size; |
e2eb6392 SR |
166 | const unsigned int *prop = of_get_property(node, |
167 | "current-speed", &size); | |
fba43665 VB |
168 | |
169 | if (prop) | |
170 | fs_baudrate = *prop; | |
171 | of_node_put(node); | |
f9234736 | 172 | } |
fba43665 VB |
173 | |
174 | return fs_baudrate; | |
175 | } | |
176 | ||
177 | EXPORT_SYMBOL(get_baudrate); | |
178 | #endif /* CONFIG_CPM2 */ | |
179 | ||
a21e282a VB |
180 | #ifdef CONFIG_FIXED_PHY |
181 | static int __init of_add_fixed_phys(void) | |
182 | { | |
183 | int ret; | |
184 | struct device_node *np; | |
185 | u32 *fixed_link; | |
186 | struct fixed_phy_status status = {}; | |
187 | ||
188 | for_each_node_by_name(np, "ethernet") { | |
189 | fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL); | |
190 | if (!fixed_link) | |
191 | continue; | |
192 | ||
193 | status.link = 1; | |
194 | status.duplex = fixed_link[1]; | |
195 | status.speed = fixed_link[2]; | |
196 | status.pause = fixed_link[3]; | |
197 | status.asym_pause = fixed_link[4]; | |
198 | ||
199 | ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status); | |
200 | if (ret) { | |
201 | of_node_put(np); | |
202 | return ret; | |
203 | } | |
204 | } | |
205 | ||
206 | return 0; | |
207 | } | |
208 | arch_initcall(of_add_fixed_phys); | |
209 | #endif /* CONFIG_FIXED_PHY */ | |
210 | ||
b31a1d8b AF |
211 | #ifdef CONFIG_PPC_83xx |
212 | static int __init mpc83xx_wdt_init(void) | |
2fb07d77 | 213 | { |
b31a1d8b | 214 | struct resource r; |
2fb07d77 | 215 | struct device_node *np; |
b31a1d8b AF |
216 | struct platform_device *dev; |
217 | u32 freq = fsl_get_sys_freq(); | |
2fb07d77 KG |
218 | int ret; |
219 | ||
b31a1d8b | 220 | np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt"); |
eed32001 | 221 | |
b31a1d8b AF |
222 | if (!np) { |
223 | ret = -ENODEV; | |
224 | goto nodev; | |
225 | } | |
eed32001 | 226 | |
b31a1d8b | 227 | memset(&r, 0, sizeof(r)); |
eed32001 | 228 | |
b31a1d8b AF |
229 | ret = of_address_to_resource(np, 0, &r); |
230 | if (ret) | |
231 | goto err; | |
c132419e | 232 | |
b31a1d8b AF |
233 | dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1); |
234 | if (IS_ERR(dev)) { | |
235 | ret = PTR_ERR(dev); | |
236 | goto err; | |
eed32001 KG |
237 | } |
238 | ||
b31a1d8b AF |
239 | ret = platform_device_add_data(dev, &freq, sizeof(freq)); |
240 | if (ret) | |
241 | goto unreg; | |
242 | ||
243 | of_node_put(np); | |
eed32001 KG |
244 | return 0; |
245 | ||
2fb07d77 | 246 | unreg: |
b31a1d8b | 247 | platform_device_unregister(dev); |
2fb07d77 | 248 | err: |
b31a1d8b AF |
249 | of_node_put(np); |
250 | nodev: | |
eed32001 KG |
251 | return ret; |
252 | } | |
2fb07d77 | 253 | |
b31a1d8b AF |
254 | arch_initcall(mpc83xx_wdt_init); |
255 | #endif | |
eed32001 | 256 | |
a7f67bdf | 257 | static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type) |
4b10cfd4 KG |
258 | { |
259 | if (!phy_type) | |
260 | return FSL_USB2_PHY_NONE; | |
261 | if (!strcasecmp(phy_type, "ulpi")) | |
262 | return FSL_USB2_PHY_ULPI; | |
263 | if (!strcasecmp(phy_type, "utmi")) | |
264 | return FSL_USB2_PHY_UTMI; | |
265 | if (!strcasecmp(phy_type, "utmi_wide")) | |
266 | return FSL_USB2_PHY_UTMI_WIDE; | |
267 | if (!strcasecmp(phy_type, "serial")) | |
268 | return FSL_USB2_PHY_SERIAL; | |
269 | ||
270 | return FSL_USB2_PHY_NONE; | |
271 | } | |
272 | ||
273 | static int __init fsl_usb_of_init(void) | |
274 | { | |
275 | struct device_node *np; | |
866b6ddd | 276 | unsigned int i = 0; |
97c5a20a LY |
277 | struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL, |
278 | *usb_dev_dr_client = NULL; | |
4b10cfd4 KG |
279 | int ret; |
280 | ||
866b6ddd | 281 | for_each_compatible_node(np, NULL, "fsl-usb2-mph") { |
4b10cfd4 KG |
282 | struct resource r[2]; |
283 | struct fsl_usb2_platform_data usb_data; | |
a7f67bdf | 284 | const unsigned char *prop = NULL; |
4b10cfd4 KG |
285 | |
286 | memset(&r, 0, sizeof(r)); | |
287 | memset(&usb_data, 0, sizeof(usb_data)); | |
288 | ||
289 | ret = of_address_to_resource(np, 0, &r[0]); | |
290 | if (ret) | |
291 | goto err; | |
292 | ||
a9b14973 | 293 | of_irq_to_resource(np, 0, &r[1]); |
4b10cfd4 | 294 | |
01cced25 KG |
295 | usb_dev_mph = |
296 | platform_device_register_simple("fsl-ehci", i, r, 2); | |
297 | if (IS_ERR(usb_dev_mph)) { | |
298 | ret = PTR_ERR(usb_dev_mph); | |
4b10cfd4 KG |
299 | goto err; |
300 | } | |
301 | ||
01cced25 KG |
302 | usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL; |
303 | usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask; | |
4b10cfd4 KG |
304 | |
305 | usb_data.operating_mode = FSL_USB2_MPH_HOST; | |
306 | ||
e2eb6392 | 307 | prop = of_get_property(np, "port0", NULL); |
4b10cfd4 KG |
308 | if (prop) |
309 | usb_data.port_enables |= FSL_USB2_PORT0_ENABLED; | |
310 | ||
e2eb6392 | 311 | prop = of_get_property(np, "port1", NULL); |
4b10cfd4 KG |
312 | if (prop) |
313 | usb_data.port_enables |= FSL_USB2_PORT1_ENABLED; | |
314 | ||
e2eb6392 | 315 | prop = of_get_property(np, "phy_type", NULL); |
4b10cfd4 KG |
316 | usb_data.phy_mode = determine_usb_phy(prop); |
317 | ||
318 | ret = | |
01cced25 | 319 | platform_device_add_data(usb_dev_mph, &usb_data, |
4b10cfd4 KG |
320 | sizeof(struct |
321 | fsl_usb2_platform_data)); | |
322 | if (ret) | |
01cced25 | 323 | goto unreg_mph; |
866b6ddd | 324 | i++; |
4b10cfd4 KG |
325 | } |
326 | ||
866b6ddd | 327 | for_each_compatible_node(np, NULL, "fsl-usb2-dr") { |
4b10cfd4 KG |
328 | struct resource r[2]; |
329 | struct fsl_usb2_platform_data usb_data; | |
a7f67bdf | 330 | const unsigned char *prop = NULL; |
4b10cfd4 | 331 | |
c026c987 AV |
332 | if (!of_device_is_available(np)) |
333 | continue; | |
334 | ||
4b10cfd4 KG |
335 | memset(&r, 0, sizeof(r)); |
336 | memset(&usb_data, 0, sizeof(usb_data)); | |
337 | ||
338 | ret = of_address_to_resource(np, 0, &r[0]); | |
339 | if (ret) | |
01cced25 | 340 | goto unreg_mph; |
4b10cfd4 | 341 | |
a9b14973 | 342 | of_irq_to_resource(np, 0, &r[1]); |
4b10cfd4 | 343 | |
e2eb6392 | 344 | prop = of_get_property(np, "dr_mode", NULL); |
97c5a20a LY |
345 | |
346 | if (!prop || !strcmp(prop, "host")) { | |
347 | usb_data.operating_mode = FSL_USB2_DR_HOST; | |
348 | usb_dev_dr_host = platform_device_register_simple( | |
349 | "fsl-ehci", i, r, 2); | |
350 | if (IS_ERR(usb_dev_dr_host)) { | |
351 | ret = PTR_ERR(usb_dev_dr_host); | |
352 | goto err; | |
353 | } | |
354 | } else if (prop && !strcmp(prop, "peripheral")) { | |
355 | usb_data.operating_mode = FSL_USB2_DR_DEVICE; | |
356 | usb_dev_dr_client = platform_device_register_simple( | |
357 | "fsl-usb2-udc", i, r, 2); | |
358 | if (IS_ERR(usb_dev_dr_client)) { | |
359 | ret = PTR_ERR(usb_dev_dr_client); | |
360 | goto err; | |
361 | } | |
362 | } else if (prop && !strcmp(prop, "otg")) { | |
363 | usb_data.operating_mode = FSL_USB2_DR_OTG; | |
364 | usb_dev_dr_host = platform_device_register_simple( | |
365 | "fsl-ehci", i, r, 2); | |
366 | if (IS_ERR(usb_dev_dr_host)) { | |
367 | ret = PTR_ERR(usb_dev_dr_host); | |
368 | goto err; | |
369 | } | |
370 | usb_dev_dr_client = platform_device_register_simple( | |
371 | "fsl-usb2-udc", i, r, 2); | |
372 | if (IS_ERR(usb_dev_dr_client)) { | |
373 | ret = PTR_ERR(usb_dev_dr_client); | |
374 | goto err; | |
375 | } | |
376 | } else { | |
377 | ret = -EINVAL; | |
4b10cfd4 KG |
378 | goto err; |
379 | } | |
380 | ||
e2eb6392 | 381 | prop = of_get_property(np, "phy_type", NULL); |
4b10cfd4 KG |
382 | usb_data.phy_mode = determine_usb_phy(prop); |
383 | ||
97c5a20a LY |
384 | if (usb_dev_dr_host) { |
385 | usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL; | |
386 | usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host-> | |
387 | dev.coherent_dma_mask; | |
388 | if ((ret = platform_device_add_data(usb_dev_dr_host, | |
389 | &usb_data, sizeof(struct | |
390 | fsl_usb2_platform_data)))) | |
391 | goto unreg_dr; | |
392 | } | |
393 | if (usb_dev_dr_client) { | |
394 | usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL; | |
395 | usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client-> | |
396 | dev.coherent_dma_mask; | |
397 | if ((ret = platform_device_add_data(usb_dev_dr_client, | |
398 | &usb_data, sizeof(struct | |
399 | fsl_usb2_platform_data)))) | |
400 | goto unreg_dr; | |
401 | } | |
866b6ddd | 402 | i++; |
4b10cfd4 | 403 | } |
4b10cfd4 KG |
404 | return 0; |
405 | ||
01cced25 | 406 | unreg_dr: |
97c5a20a LY |
407 | if (usb_dev_dr_host) |
408 | platform_device_unregister(usb_dev_dr_host); | |
409 | if (usb_dev_dr_client) | |
410 | platform_device_unregister(usb_dev_dr_client); | |
01cced25 KG |
411 | unreg_mph: |
412 | if (usb_dev_mph) | |
413 | platform_device_unregister(usb_dev_mph); | |
4b10cfd4 KG |
414 | err: |
415 | return ret; | |
416 | } | |
417 | ||
01cced25 | 418 | arch_initcall(fsl_usb_of_init); |
fba43665 | 419 | |
f3a2b29d AV |
420 | static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk, |
421 | struct spi_board_info *board_infos, | |
422 | unsigned int num_board_infos, | |
423 | void (*activate_cs)(u8 cs, u8 polarity), | |
424 | void (*deactivate_cs)(u8 cs, u8 polarity)) | |
26f6cb99 AV |
425 | { |
426 | struct device_node *np; | |
f3a2b29d | 427 | unsigned int i = 0; |
26f6cb99 | 428 | |
f3a2b29d AV |
429 | for_each_compatible_node(np, type, compatible) { |
430 | int ret; | |
26f6cb99 AV |
431 | unsigned int j; |
432 | const void *prop; | |
433 | struct resource res[2]; | |
434 | struct platform_device *pdev; | |
435 | struct fsl_spi_platform_data pdata = { | |
436 | .activate_cs = activate_cs, | |
437 | .deactivate_cs = deactivate_cs, | |
438 | }; | |
439 | ||
440 | memset(res, 0, sizeof(res)); | |
441 | ||
59a0ea50 | 442 | pdata.sysclk = sysclk; |
26f6cb99 AV |
443 | |
444 | prop = of_get_property(np, "reg", NULL); | |
445 | if (!prop) | |
446 | goto err; | |
447 | pdata.bus_num = *(u32 *)prop; | |
448 | ||
f3a2b29d AV |
449 | prop = of_get_property(np, "cell-index", NULL); |
450 | if (prop) | |
451 | i = *(u32 *)prop; | |
452 | ||
26f6cb99 AV |
453 | prop = of_get_property(np, "mode", NULL); |
454 | if (prop && !strcmp(prop, "cpu-qe")) | |
455 | pdata.qe_mode = 1; | |
456 | ||
457 | for (j = 0; j < num_board_infos; j++) { | |
458 | if (board_infos[j].bus_num == pdata.bus_num) | |
459 | pdata.max_chipselect++; | |
460 | } | |
461 | ||
462 | if (!pdata.max_chipselect) | |
f3a2b29d | 463 | continue; |
26f6cb99 AV |
464 | |
465 | ret = of_address_to_resource(np, 0, &res[0]); | |
466 | if (ret) | |
467 | goto err; | |
468 | ||
469 | ret = of_irq_to_resource(np, 0, &res[1]); | |
470 | if (ret == NO_IRQ) | |
471 | goto err; | |
472 | ||
473 | pdev = platform_device_alloc("mpc83xx_spi", i); | |
474 | if (!pdev) | |
475 | goto err; | |
476 | ||
477 | ret = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
478 | if (ret) | |
479 | goto unreg; | |
480 | ||
481 | ret = platform_device_add_resources(pdev, res, | |
482 | ARRAY_SIZE(res)); | |
483 | if (ret) | |
484 | goto unreg; | |
485 | ||
dc4e4207 | 486 | ret = platform_device_add(pdev); |
26f6cb99 AV |
487 | if (ret) |
488 | goto unreg; | |
489 | ||
f3a2b29d | 490 | goto next; |
26f6cb99 AV |
491 | unreg: |
492 | platform_device_del(pdev); | |
493 | err: | |
f3a2b29d AV |
494 | pr_err("%s: registration failed\n", np->full_name); |
495 | next: | |
496 | i++; | |
26f6cb99 AV |
497 | } |
498 | ||
f3a2b29d AV |
499 | return i; |
500 | } | |
501 | ||
502 | int __init fsl_spi_init(struct spi_board_info *board_infos, | |
503 | unsigned int num_board_infos, | |
504 | void (*activate_cs)(u8 cs, u8 polarity), | |
505 | void (*deactivate_cs)(u8 cs, u8 polarity)) | |
506 | { | |
507 | u32 sysclk = -1; | |
508 | int ret; | |
509 | ||
510 | #ifdef CONFIG_QUICC_ENGINE | |
511 | /* SPI controller is either clocked from QE or SoC clock */ | |
512 | sysclk = get_brgfreq(); | |
513 | #endif | |
514 | if (sysclk == -1) { | |
38664095 SW |
515 | sysclk = fsl_get_sys_freq(); |
516 | if (sysclk == -1) | |
f3a2b29d | 517 | return -ENODEV; |
f3a2b29d AV |
518 | } |
519 | ||
520 | ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos, | |
521 | num_board_infos, activate_cs, deactivate_cs); | |
522 | if (!ret) | |
523 | of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos, | |
524 | num_board_infos, activate_cs, deactivate_cs); | |
525 | ||
26f6cb99 AV |
526 | return spi_register_board_info(board_infos, num_board_infos); |
527 | } | |
e1c1575f KG |
528 | |
529 | #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx) | |
530 | static __be32 __iomem *rstcr; | |
531 | ||
532 | static int __init setup_rstcr(void) | |
533 | { | |
534 | struct device_node *np; | |
535 | np = of_find_node_by_name(NULL, "global-utilities"); | |
536 | if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) { | |
537 | const u32 *prop = of_get_property(np, "reg", NULL); | |
538 | if (prop) { | |
539 | /* map reset control register | |
540 | * 0xE00B0 is offset of reset control register | |
541 | */ | |
542 | rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff); | |
543 | if (!rstcr) | |
544 | printk (KERN_EMERG "Error: reset control " | |
545 | "register not mapped!\n"); | |
546 | } | |
547 | } else | |
548 | printk (KERN_INFO "rstcr compatible register does not exist!\n"); | |
549 | if (np) | |
550 | of_node_put(np); | |
551 | return 0; | |
552 | } | |
553 | ||
554 | arch_initcall(setup_rstcr); | |
555 | ||
556 | void fsl_rstcr_restart(char *cmd) | |
557 | { | |
558 | local_irq_disable(); | |
559 | if (rstcr) | |
560 | /* set reset control register */ | |
561 | out_be32(rstcr, 0x2); /* HRESET_REQ */ | |
562 | ||
563 | while (1) ; | |
564 | } | |
565 | #endif | |
6f90a8bd YS |
566 | |
567 | #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) | |
43c9f434 | 568 | struct platform_diu_data_ops diu_ops; |
6f90a8bd | 569 | EXPORT_SYMBOL(diu_ops); |
6f90a8bd | 570 | #endif |