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1a8bfa1e TL |
1 | /* |
2 | * linux/arch/arm/plat-omap/devices.c | |
3 | * | |
4 | * Common platform device setup/initialization for OMAP1 and OMAP2 | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
1a8bfa1e TL |
12 | #include <linux/module.h> |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/platform_device.h> | |
16 | ||
a09e64fb | 17 | #include <mach/hardware.h> |
1a8bfa1e TL |
18 | #include <asm/io.h> |
19 | #include <asm/mach-types.h> | |
20 | #include <asm/mach/map.h> | |
21 | ||
a09e64fb RK |
22 | #include <mach/tc.h> |
23 | #include <mach/board.h> | |
7736c09c | 24 | #include <mach/mmc.h> |
a09e64fb RK |
25 | #include <mach/mux.h> |
26 | #include <mach/gpio.h> | |
27 | #include <mach/menelaus.h> | |
28 | #include <mach/mcbsp.h> | |
1a8bfa1e | 29 | |
c40fae95 TL |
30 | #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE) |
31 | ||
32 | #include "../plat-omap/dsp/dsp_common.h" | |
33 | ||
34 | static struct dsp_platform_data dsp_pdata = { | |
35 | .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list), | |
36 | }; | |
37 | ||
38 | static struct resource omap_dsp_resources[] = { | |
39 | { | |
40 | .name = "dsp_mmu", | |
41 | .start = -1, | |
42 | .flags = IORESOURCE_IRQ, | |
43 | }, | |
44 | }; | |
45 | ||
46 | static struct platform_device omap_dsp_device = { | |
47 | .name = "dsp", | |
48 | .id = -1, | |
49 | .num_resources = ARRAY_SIZE(omap_dsp_resources), | |
50 | .resource = omap_dsp_resources, | |
51 | .dev = { | |
52 | .platform_data = &dsp_pdata, | |
53 | }, | |
54 | }; | |
55 | ||
56 | static inline void omap_init_dsp(void) | |
57 | { | |
58 | struct resource *res; | |
59 | int irq; | |
60 | ||
61 | if (cpu_is_omap15xx()) | |
62 | irq = INT_1510_DSP_MMU; | |
63 | else if (cpu_is_omap16xx()) | |
64 | irq = INT_1610_DSP_MMU; | |
65 | else if (cpu_is_omap24xx()) | |
66 | irq = INT_24XX_DSP_MMU; | |
67 | ||
68 | res = platform_get_resource_byname(&omap_dsp_device, | |
69 | IORESOURCE_IRQ, "dsp_mmu"); | |
70 | res->start = irq; | |
71 | ||
72 | platform_device_register(&omap_dsp_device); | |
73 | } | |
74 | ||
75 | int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev) | |
76 | { | |
77 | static DEFINE_MUTEX(dsp_pdata_lock); | |
78 | ||
79 | mutex_init(&kdev->lock); | |
80 | ||
81 | mutex_lock(&dsp_pdata_lock); | |
82 | list_add_tail(&kdev->entry, &dsp_pdata.kdev_list); | |
83 | mutex_unlock(&dsp_pdata_lock); | |
84 | ||
85 | return 0; | |
86 | } | |
87 | EXPORT_SYMBOL(dsp_kfunc_device_register); | |
88 | ||
89 | #else | |
90 | static inline void omap_init_dsp(void) { } | |
91 | #endif /* CONFIG_OMAP_DSP */ | |
92 | ||
9b6553cd TL |
93 | /*-------------------------------------------------------------------------*/ |
94 | #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE) | |
95 | ||
96 | static void omap_init_kp(void) | |
97 | { | |
98 | if (machine_is_omap_h2() || machine_is_omap_h3()) { | |
99 | omap_cfg_reg(F18_1610_KBC0); | |
100 | omap_cfg_reg(D20_1610_KBC1); | |
101 | omap_cfg_reg(D19_1610_KBC2); | |
102 | omap_cfg_reg(E18_1610_KBC3); | |
103 | omap_cfg_reg(C21_1610_KBC4); | |
104 | ||
105 | omap_cfg_reg(G18_1610_KBR0); | |
106 | omap_cfg_reg(F19_1610_KBR1); | |
107 | omap_cfg_reg(H14_1610_KBR2); | |
108 | omap_cfg_reg(E20_1610_KBR3); | |
109 | omap_cfg_reg(E19_1610_KBR4); | |
110 | omap_cfg_reg(N19_1610_KBR5); | |
495f71db | 111 | } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) { |
9b6553cd TL |
112 | omap_cfg_reg(E2_730_KBR0); |
113 | omap_cfg_reg(J7_730_KBR1); | |
114 | omap_cfg_reg(E1_730_KBR2); | |
115 | omap_cfg_reg(F3_730_KBR3); | |
116 | omap_cfg_reg(D2_730_KBR4); | |
117 | ||
118 | omap_cfg_reg(C2_730_KBC0); | |
119 | omap_cfg_reg(D3_730_KBC1); | |
120 | omap_cfg_reg(E4_730_KBC2); | |
121 | omap_cfg_reg(F4_730_KBC3); | |
122 | omap_cfg_reg(E3_730_KBC4); | |
123 | } else if (machine_is_omap_h4()) { | |
124 | omap_cfg_reg(T19_24XX_KBR0); | |
125 | omap_cfg_reg(R19_24XX_KBR1); | |
126 | omap_cfg_reg(V18_24XX_KBR2); | |
127 | omap_cfg_reg(M21_24XX_KBR3); | |
128 | omap_cfg_reg(E5__24XX_KBR4); | |
129 | if (omap_has_menelaus()) { | |
130 | omap_cfg_reg(B3__24XX_KBR5); | |
131 | omap_cfg_reg(AA4_24XX_KBC2); | |
132 | omap_cfg_reg(B13_24XX_KBC6); | |
133 | } else { | |
134 | omap_cfg_reg(M18_24XX_KBR5); | |
135 | omap_cfg_reg(H19_24XX_KBC2); | |
136 | omap_cfg_reg(N19_24XX_KBC6); | |
137 | } | |
138 | omap_cfg_reg(R20_24XX_KBC0); | |
139 | omap_cfg_reg(M14_24XX_KBC1); | |
140 | omap_cfg_reg(V17_24XX_KBC3); | |
141 | omap_cfg_reg(P21_24XX_KBC4); | |
142 | omap_cfg_reg(L14_24XX_KBC5); | |
143 | } | |
144 | } | |
145 | #else | |
146 | static inline void omap_init_kp(void) {} | |
147 | #endif | |
148 | ||
bc5d0c89 EV |
149 | /*-------------------------------------------------------------------------*/ |
150 | #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE) | |
151 | ||
152 | static struct platform_device **omap_mcbsp_devices; | |
153 | ||
154 | void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, | |
155 | int size) | |
156 | { | |
157 | int i; | |
158 | ||
159 | if (size > OMAP_MAX_MCBSP_COUNT) { | |
160 | printk(KERN_WARNING "Registered too many McBSPs platform_data." | |
161 | " Using maximum (%d) available.\n", | |
162 | OMAP_MAX_MCBSP_COUNT); | |
163 | size = OMAP_MAX_MCBSP_COUNT; | |
164 | } | |
165 | ||
166 | omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *), | |
167 | GFP_KERNEL); | |
168 | if (!omap_mcbsp_devices) { | |
169 | printk(KERN_ERR "Could not register McBSP devices\n"); | |
170 | return; | |
171 | } | |
172 | ||
173 | for (i = 0; i < size; i++) { | |
174 | struct platform_device *new_mcbsp; | |
175 | int ret; | |
176 | ||
177 | new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1); | |
178 | if (!new_mcbsp) | |
179 | continue; | |
180 | new_mcbsp->dev.platform_data = &config[i]; | |
181 | ret = platform_device_add(new_mcbsp); | |
182 | if (ret) { | |
183 | platform_device_put(new_mcbsp); | |
184 | continue; | |
185 | } | |
186 | omap_mcbsp_devices[i] = new_mcbsp; | |
187 | } | |
188 | } | |
189 | ||
190 | #else | |
191 | void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, | |
192 | int size) | |
193 | { } | |
194 | #endif | |
195 | ||
1a8bfa1e TL |
196 | /*-------------------------------------------------------------------------*/ |
197 | ||
7736c09c RK |
198 | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ |
199 | defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) | |
1a8bfa1e | 200 | |
7736c09c | 201 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
1a8bfa1e | 202 | #define OMAP_MMC1_BASE 0x4809c000 |
7736c09c RK |
203 | #define OMAP_MMC1_END (OMAP_MMC1_BASE + 0x1fc) |
204 | #define OMAP_MMC1_INT INT_24XX_MMC_IRQ | |
205 | ||
206 | #define OMAP_MMC2_BASE 0x480b4000 | |
207 | #define OMAP_MMC2_END (OMAP_MMC2_BASE + 0x1fc) | |
208 | #define OMAP_MMC2_INT INT_24XX_MMC2_IRQ | |
209 | ||
1a8bfa1e | 210 | #else |
7736c09c | 211 | |
1a8bfa1e | 212 | #define OMAP_MMC1_BASE 0xfffb7800 |
7736c09c | 213 | #define OMAP_MMC1_END (OMAP_MMC1_BASE + 0x7f) |
1a8bfa1e | 214 | #define OMAP_MMC1_INT INT_MMC |
7736c09c | 215 | |
1a8bfa1e | 216 | #define OMAP_MMC2_BASE 0xfffb7c00 /* omap16xx only */ |
7736c09c RK |
217 | #define OMAP_MMC2_END (OMAP_MMC2_BASE + 0x7f) |
218 | #define OMAP_MMC2_INT INT_1610_MMC2 | |
1a8bfa1e | 219 | |
7736c09c RK |
220 | #endif |
221 | ||
222 | static struct omap_mmc_platform_data mmc1_data; | |
1a8bfa1e TL |
223 | |
224 | static u64 mmc1_dmamask = 0xffffffff; | |
225 | ||
226 | static struct resource mmc1_resources[] = { | |
227 | { | |
ce9c1a83 | 228 | .start = OMAP_MMC1_BASE, |
7736c09c | 229 | .end = OMAP_MMC1_END, |
1a8bfa1e TL |
230 | .flags = IORESOURCE_MEM, |
231 | }, | |
232 | { | |
233 | .start = OMAP_MMC1_INT, | |
234 | .flags = IORESOURCE_IRQ, | |
235 | }, | |
236 | }; | |
237 | ||
238 | static struct platform_device mmc_omap_device1 = { | |
239 | .name = "mmci-omap", | |
240 | .id = 1, | |
241 | .dev = { | |
1a8bfa1e | 242 | .dma_mask = &mmc1_dmamask, |
7736c09c | 243 | .platform_data = &mmc1_data, |
1a8bfa1e TL |
244 | }, |
245 | .num_resources = ARRAY_SIZE(mmc1_resources), | |
246 | .resource = mmc1_resources, | |
247 | }; | |
248 | ||
7736c09c RK |
249 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \ |
250 | defined(CONFIG_ARCH_OMAP34XX) | |
1a8bfa1e | 251 | |
7736c09c | 252 | static struct omap_mmc_platform_data mmc2_data; |
1a8bfa1e TL |
253 | |
254 | static u64 mmc2_dmamask = 0xffffffff; | |
255 | ||
256 | static struct resource mmc2_resources[] = { | |
257 | { | |
ce9c1a83 | 258 | .start = OMAP_MMC2_BASE, |
7736c09c | 259 | .end = OMAP_MMC2_END, |
1a8bfa1e TL |
260 | .flags = IORESOURCE_MEM, |
261 | }, | |
262 | { | |
7736c09c | 263 | .start = OMAP_MMC2_INT, |
1a8bfa1e TL |
264 | .flags = IORESOURCE_IRQ, |
265 | }, | |
266 | }; | |
267 | ||
268 | static struct platform_device mmc_omap_device2 = { | |
269 | .name = "mmci-omap", | |
270 | .id = 2, | |
271 | .dev = { | |
1a8bfa1e | 272 | .dma_mask = &mmc2_dmamask, |
7736c09c | 273 | .platform_data = &mmc2_data, |
1a8bfa1e TL |
274 | }, |
275 | .num_resources = ARRAY_SIZE(mmc2_resources), | |
276 | .resource = mmc2_resources, | |
277 | }; | |
278 | #endif | |
279 | ||
7736c09c | 280 | static inline void omap_init_mmc_conf(const struct omap_mmc_config *mmc_conf) |
1a8bfa1e | 281 | { |
7736c09c | 282 | if (cpu_is_omap2430() || cpu_is_omap34xx()) |
1a8bfa1e TL |
283 | return; |
284 | ||
7736c09c | 285 | if (mmc_conf->mmc[0].enabled) { |
abc45e1d KP |
286 | if (cpu_is_omap24xx()) { |
287 | omap_cfg_reg(H18_24XX_MMC_CMD); | |
288 | omap_cfg_reg(H15_24XX_MMC_CLKI); | |
289 | omap_cfg_reg(G19_24XX_MMC_CLKO); | |
290 | omap_cfg_reg(F20_24XX_MMC_DAT0); | |
291 | omap_cfg_reg(F19_24XX_MMC_DAT_DIR0); | |
292 | omap_cfg_reg(G18_24XX_MMC_CMD_DIR); | |
293 | } else { | |
1a8bfa1e TL |
294 | omap_cfg_reg(MMC_CMD); |
295 | omap_cfg_reg(MMC_CLK); | |
296 | omap_cfg_reg(MMC_DAT0); | |
297 | if (cpu_is_omap1710()) { | |
298 | omap_cfg_reg(M15_1710_MMC_CLKI); | |
299 | omap_cfg_reg(P19_1710_MMC_CMDDIR); | |
300 | omap_cfg_reg(P20_1710_MMC_DATDIR0); | |
301 | } | |
302 | } | |
7736c09c | 303 | if (mmc_conf->mmc[0].wire4) { |
abc45e1d KP |
304 | if (cpu_is_omap24xx()) { |
305 | omap_cfg_reg(H14_24XX_MMC_DAT1); | |
306 | omap_cfg_reg(E19_24XX_MMC_DAT2); | |
307 | omap_cfg_reg(D19_24XX_MMC_DAT3); | |
308 | omap_cfg_reg(E20_24XX_MMC_DAT_DIR1); | |
309 | omap_cfg_reg(F18_24XX_MMC_DAT_DIR2); | |
310 | omap_cfg_reg(E18_24XX_MMC_DAT_DIR3); | |
311 | } else { | |
1a8bfa1e TL |
312 | omap_cfg_reg(MMC_DAT1); |
313 | /* NOTE: DAT2 can be on W10 (here) or M15 */ | |
7736c09c | 314 | if (!mmc_conf->mmc[0].nomux) |
1a8bfa1e TL |
315 | omap_cfg_reg(MMC_DAT2); |
316 | omap_cfg_reg(MMC_DAT3); | |
317 | } | |
318 | } | |
1a8bfa1e TL |
319 | } |
320 | ||
321 | #ifdef CONFIG_ARCH_OMAP16XX | |
322 | /* block 2 is on newer chips, and has many pinout options */ | |
7736c09c RK |
323 | if (mmc_conf->mmc[1].enabled) { |
324 | if (!mmc_conf->mmc[1].nomux) { | |
1a8bfa1e TL |
325 | omap_cfg_reg(Y8_1610_MMC2_CMD); |
326 | omap_cfg_reg(Y10_1610_MMC2_CLK); | |
327 | omap_cfg_reg(R18_1610_MMC2_CLKIN); | |
328 | omap_cfg_reg(W8_1610_MMC2_DAT0); | |
7736c09c | 329 | if (mmc_conf->mmc[1].wire4) { |
1a8bfa1e TL |
330 | omap_cfg_reg(V8_1610_MMC2_DAT1); |
331 | omap_cfg_reg(W15_1610_MMC2_DAT2); | |
332 | omap_cfg_reg(R10_1610_MMC2_DAT3); | |
333 | } | |
334 | ||
335 | /* These are needed for the level shifter */ | |
336 | omap_cfg_reg(V9_1610_MMC2_CMDDIR); | |
337 | omap_cfg_reg(V5_1610_MMC2_DATDIR0); | |
338 | omap_cfg_reg(W19_1610_MMC2_DATDIR1); | |
339 | } | |
340 | ||
341 | /* Feedback clock must be set on OMAP-1710 MMC2 */ | |
342 | if (cpu_is_omap1710()) | |
343 | omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24), | |
344 | MOD_CONF_CTRL_1); | |
7736c09c RK |
345 | } |
346 | #endif | |
347 | } | |
348 | ||
349 | static void __init omap_init_mmc(void) | |
350 | { | |
351 | const struct omap_mmc_config *mmc_conf; | |
352 | ||
353 | /* NOTE: assumes MMC was never (wrongly) enabled */ | |
354 | mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config); | |
355 | if (!mmc_conf) | |
356 | return; | |
357 | ||
358 | omap_init_mmc_conf(mmc_conf); | |
359 | ||
360 | if (mmc_conf->mmc[0].enabled) { | |
361 | mmc1_data.conf = mmc_conf->mmc[0]; | |
362 | (void) platform_device_register(&mmc_omap_device1); | |
363 | } | |
364 | ||
365 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \ | |
366 | defined(CONFIG_ARCH_OMAP34XX) | |
367 | if (mmc_conf->mmc[1].enabled) { | |
368 | mmc2_data.conf = mmc_conf->mmc[1]; | |
1a8bfa1e TL |
369 | (void) platform_device_register(&mmc_omap_device2); |
370 | } | |
371 | #endif | |
1a8bfa1e | 372 | } |
7736c09c RK |
373 | |
374 | void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info) | |
375 | { | |
376 | switch (host) { | |
377 | case 1: | |
378 | mmc1_data = *info; | |
379 | break; | |
380 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \ | |
381 | defined(CONFIG_ARCH_OMAP34XX) | |
382 | case 2: | |
383 | mmc2_data = *info; | |
384 | break; | |
385 | #endif | |
386 | default: | |
387 | BUG(); | |
388 | } | |
389 | } | |
390 | ||
1a8bfa1e TL |
391 | #else |
392 | static inline void omap_init_mmc(void) {} | |
7736c09c | 393 | void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info) {} |
1a8bfa1e TL |
394 | #endif |
395 | ||
9b6553cd TL |
396 | /*-------------------------------------------------------------------------*/ |
397 | ||
398 | /* Numbering for the SPI-capable controllers when used for SPI: | |
399 | * spi = 1 | |
400 | * uwire = 2 | |
401 | * mmc1..2 = 3..4 | |
402 | * mcbsp1..3 = 5..7 | |
403 | */ | |
404 | ||
405 | #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE) | |
406 | ||
407 | #define OMAP_UWIRE_BASE 0xfffb3000 | |
408 | ||
409 | static struct resource uwire_resources[] = { | |
410 | { | |
411 | .start = OMAP_UWIRE_BASE, | |
412 | .end = OMAP_UWIRE_BASE + 0x20, | |
413 | .flags = IORESOURCE_MEM, | |
414 | }, | |
415 | }; | |
416 | ||
417 | static struct platform_device omap_uwire_device = { | |
418 | .name = "omap_uwire", | |
419 | .id = -1, | |
9b6553cd TL |
420 | .num_resources = ARRAY_SIZE(uwire_resources), |
421 | .resource = uwire_resources, | |
422 | }; | |
423 | ||
424 | static void omap_init_uwire(void) | |
425 | { | |
426 | /* FIXME define and use a boot tag; not all boards will be hooking | |
427 | * up devices to the microwire controller, and multi-board configs | |
428 | * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway... | |
429 | */ | |
430 | ||
431 | /* board-specific code must configure chipselects (only a few | |
432 | * are normally used) and SCLK/SDI/SDO (each has two choices). | |
433 | */ | |
434 | (void) platform_device_register(&omap_uwire_device); | |
435 | } | |
436 | #else | |
437 | static inline void omap_init_uwire(void) {} | |
438 | #endif | |
439 | ||
440 | /*-------------------------------------------------------------------------*/ | |
441 | ||
1a8bfa1e TL |
442 | #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE) |
443 | ||
444 | #ifdef CONFIG_ARCH_OMAP24XX | |
445 | #define OMAP_WDT_BASE 0x48022000 | |
446 | #else | |
447 | #define OMAP_WDT_BASE 0xfffeb000 | |
448 | #endif | |
449 | ||
450 | static struct resource wdt_resources[] = { | |
451 | { | |
452 | .start = OMAP_WDT_BASE, | |
453 | .end = OMAP_WDT_BASE + 0x4f, | |
454 | .flags = IORESOURCE_MEM, | |
455 | }, | |
456 | }; | |
457 | ||
458 | static struct platform_device omap_wdt_device = { | |
459 | .name = "omap_wdt", | |
460 | .id = -1, | |
1a8bfa1e TL |
461 | .num_resources = ARRAY_SIZE(wdt_resources), |
462 | .resource = wdt_resources, | |
463 | }; | |
464 | ||
465 | static void omap_init_wdt(void) | |
466 | { | |
467 | (void) platform_device_register(&omap_wdt_device); | |
468 | } | |
469 | #else | |
470 | static inline void omap_init_wdt(void) {} | |
471 | #endif | |
472 | ||
473 | /*-------------------------------------------------------------------------*/ | |
474 | ||
c40fae95 | 475 | #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE) |
1a8bfa1e TL |
476 | |
477 | #ifdef CONFIG_ARCH_OMAP24XX | |
478 | #define OMAP_RNG_BASE 0x480A0000 | |
479 | #else | |
480 | #define OMAP_RNG_BASE 0xfffe5000 | |
481 | #endif | |
482 | ||
483 | static struct resource rng_resources[] = { | |
484 | { | |
485 | .start = OMAP_RNG_BASE, | |
486 | .end = OMAP_RNG_BASE + 0x4f, | |
487 | .flags = IORESOURCE_MEM, | |
488 | }, | |
489 | }; | |
490 | ||
491 | static struct platform_device omap_rng_device = { | |
492 | .name = "omap_rng", | |
493 | .id = -1, | |
1a8bfa1e TL |
494 | .num_resources = ARRAY_SIZE(rng_resources), |
495 | .resource = rng_resources, | |
496 | }; | |
497 | ||
498 | static void omap_init_rng(void) | |
499 | { | |
500 | (void) platform_device_register(&omap_rng_device); | |
501 | } | |
502 | #else | |
503 | static inline void omap_init_rng(void) {} | |
504 | #endif | |
505 | ||
1a8bfa1e TL |
506 | /* |
507 | * This gets called after board-specific INIT_MACHINE, and initializes most | |
508 | * on-chip peripherals accessible on this board (except for few like USB): | |
509 | * | |
510 | * (a) Does any "standard config" pin muxing needed. Board-specific | |
511 | * code will have muxed GPIO pins and done "nonstandard" setup; | |
512 | * that code could live in the boot loader. | |
513 | * (b) Populating board-specific platform_data with the data drivers | |
514 | * rely on to handle wiring variations. | |
515 | * (c) Creating platform devices as meaningful on this board and | |
516 | * with this kernel configuration. | |
517 | * | |
518 | * Claiming GPIOs, and setting their direction and initial values, is the | |
519 | * responsibility of the device drivers. So is responding to probe(). | |
520 | * | |
521 | * Board-specific knowlege like creating devices or pin setup is to be | |
522 | * kept out of drivers as much as possible. In particular, pin setup | |
523 | * may be handled by the boot loader, and drivers should expect it will | |
524 | * normally have been done by the time they're probed. | |
525 | */ | |
526 | static int __init omap_init_devices(void) | |
527 | { | |
56a25641 SMK |
528 | /* |
529 | * Need to enable relevant once for 2430 SDP | |
530 | */ | |
531 | #ifndef CONFIG_MACH_OMAP_2430SDP | |
1a8bfa1e TL |
532 | /* please keep these calls, and their implementations above, |
533 | * in alphabetical order so they're easier to sort through. | |
534 | */ | |
c40fae95 | 535 | omap_init_dsp(); |
9b6553cd | 536 | omap_init_kp(); |
1a8bfa1e | 537 | omap_init_mmc(); |
9b6553cd | 538 | omap_init_uwire(); |
1a8bfa1e TL |
539 | omap_init_wdt(); |
540 | omap_init_rng(); | |
56a25641 | 541 | #endif |
1a8bfa1e TL |
542 | return 0; |
543 | } | |
544 | arch_initcall(omap_init_devices); |