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Commit | Line | Data |
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bb3cee2b LW |
1 | /* |
2 | * | |
3 | * arch/arm/mach-u300/core.c | |
4 | * | |
5 | * | |
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | |
7 | * License terms: GNU General Public License (GPL) version 2 | |
8 | * Core platform support, IRQ handling and device definitions. | |
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | |
10 | */ | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/spinlock.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/bitops.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/mm.h> | |
18 | #include <linux/termios.h> | |
19 | #include <linux/amba/bus.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/gpio.h> | |
22 | ||
23 | #include <asm/types.h> | |
24 | #include <asm/setup.h> | |
25 | #include <asm/memory.h> | |
26 | #include <asm/hardware/vic.h> | |
27 | #include <asm/mach/map.h> | |
28 | #include <asm/mach/irq.h> | |
29 | ||
30 | #include <mach/hardware.h> | |
31 | #include <mach/syscon.h> | |
32 | ||
33 | #include "clock.h" | |
34 | #include "mmc.h" | |
c7c8c78f | 35 | #include "spi.h" |
6be2a0ca | 36 | #include "i2c.h" |
bb3cee2b LW |
37 | |
38 | /* | |
39 | * Static I/O mappings that are needed for booting the U300 platforms. The | |
40 | * only things we need are the areas where we find the timer, syscon and | |
41 | * intcon, since the remaining device drivers will map their own memory | |
42 | * physical to virtual as the need arise. | |
43 | */ | |
44 | static struct map_desc u300_io_desc[] __initdata = { | |
45 | { | |
46 | .virtual = U300_SLOW_PER_VIRT_BASE, | |
47 | .pfn = __phys_to_pfn(U300_SLOW_PER_PHYS_BASE), | |
48 | .length = SZ_64K, | |
49 | .type = MT_DEVICE, | |
50 | }, | |
51 | { | |
52 | .virtual = U300_AHB_PER_VIRT_BASE, | |
53 | .pfn = __phys_to_pfn(U300_AHB_PER_PHYS_BASE), | |
54 | .length = SZ_32K, | |
55 | .type = MT_DEVICE, | |
56 | }, | |
57 | { | |
58 | .virtual = U300_FAST_PER_VIRT_BASE, | |
59 | .pfn = __phys_to_pfn(U300_FAST_PER_PHYS_BASE), | |
60 | .length = SZ_32K, | |
61 | .type = MT_DEVICE, | |
62 | }, | |
63 | { | |
64 | .virtual = 0xffff2000, /* TCM memory */ | |
65 | .pfn = __phys_to_pfn(0xffff2000), | |
66 | .length = SZ_16K, | |
67 | .type = MT_DEVICE, | |
68 | }, | |
69 | ||
70 | /* | |
71 | * This overlaps with the IRQ vectors etc at 0xffff0000, so these | |
72 | * may have to be moved to 0x00000000 in order to use the ROM. | |
73 | */ | |
74 | /* | |
75 | { | |
76 | .virtual = U300_BOOTROM_VIRT_BASE, | |
77 | .pfn = __phys_to_pfn(U300_BOOTROM_PHYS_BASE), | |
78 | .length = SZ_64K, | |
79 | .type = MT_ROM, | |
80 | }, | |
81 | */ | |
82 | }; | |
83 | ||
84 | void __init u300_map_io(void) | |
85 | { | |
86 | iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc)); | |
87 | } | |
88 | ||
89 | /* | |
90 | * Declaration of devices found on the U300 board and | |
91 | * their respective memory locations. | |
92 | */ | |
93 | static struct amba_device uart0_device = { | |
94 | .dev = { | |
95 | .init_name = "uart0", /* Slow device at 0x3000 offset */ | |
96 | .platform_data = NULL, | |
97 | }, | |
98 | .res = { | |
99 | .start = U300_UART0_BASE, | |
100 | .end = U300_UART0_BASE + SZ_4K - 1, | |
101 | .flags = IORESOURCE_MEM, | |
102 | }, | |
103 | .irq = { IRQ_U300_UART0, NO_IRQ }, | |
104 | }; | |
105 | ||
106 | /* The U335 have an additional UART1 on the APP CPU */ | |
107 | #ifdef CONFIG_MACH_U300_BS335 | |
108 | static struct amba_device uart1_device = { | |
109 | .dev = { | |
110 | .init_name = "uart1", /* Fast device at 0x7000 offset */ | |
111 | .platform_data = NULL, | |
112 | }, | |
113 | .res = { | |
114 | .start = U300_UART1_BASE, | |
115 | .end = U300_UART1_BASE + SZ_4K - 1, | |
116 | .flags = IORESOURCE_MEM, | |
117 | }, | |
118 | .irq = { IRQ_U300_UART1, NO_IRQ }, | |
119 | }; | |
120 | #endif | |
121 | ||
122 | static struct amba_device pl172_device = { | |
123 | .dev = { | |
124 | .init_name = "pl172", /* AHB device at 0x4000 offset */ | |
125 | .platform_data = NULL, | |
126 | }, | |
127 | .res = { | |
128 | .start = U300_EMIF_CFG_BASE, | |
129 | .end = U300_EMIF_CFG_BASE + SZ_4K - 1, | |
130 | .flags = IORESOURCE_MEM, | |
131 | }, | |
132 | }; | |
133 | ||
134 | ||
135 | /* | |
136 | * Everything within this next ifdef deals with external devices connected to | |
137 | * the APP SPI bus. | |
138 | */ | |
139 | static struct amba_device pl022_device = { | |
140 | .dev = { | |
141 | .coherent_dma_mask = ~0, | |
142 | .init_name = "pl022", /* Fast device at 0x6000 offset */ | |
143 | }, | |
144 | .res = { | |
145 | .start = U300_SPI_BASE, | |
146 | .end = U300_SPI_BASE + SZ_4K - 1, | |
147 | .flags = IORESOURCE_MEM, | |
148 | }, | |
149 | .irq = {IRQ_U300_SPI, NO_IRQ }, | |
150 | /* | |
151 | * This device has a DMA channel but the Linux driver does not use | |
152 | * it currently. | |
153 | */ | |
154 | }; | |
155 | ||
156 | static struct amba_device mmcsd_device = { | |
157 | .dev = { | |
158 | .init_name = "mmci", /* Fast device at 0x1000 offset */ | |
159 | .platform_data = NULL, /* Added later */ | |
160 | }, | |
161 | .res = { | |
162 | .start = U300_MMCSD_BASE, | |
163 | .end = U300_MMCSD_BASE + SZ_4K - 1, | |
164 | .flags = IORESOURCE_MEM, | |
165 | }, | |
166 | .irq = {IRQ_U300_MMCSD_MCIINTR0, IRQ_U300_MMCSD_MCIINTR1 }, | |
167 | /* | |
168 | * This device has a DMA channel but the Linux driver does not use | |
169 | * it currently. | |
170 | */ | |
171 | }; | |
172 | ||
173 | /* | |
174 | * The order of device declaration may be important, since some devices | |
175 | * have dependencies on other devices being initialized first. | |
176 | */ | |
177 | static struct amba_device *amba_devs[] __initdata = { | |
178 | &uart0_device, | |
179 | #ifdef CONFIG_MACH_U300_BS335 | |
180 | &uart1_device, | |
181 | #endif | |
182 | &pl022_device, | |
183 | &pl172_device, | |
184 | &mmcsd_device, | |
185 | }; | |
186 | ||
187 | /* Here follows a list of all hw resources that the platform devices | |
188 | * allocate. Note, clock dependencies are not included | |
189 | */ | |
190 | ||
191 | static struct resource gpio_resources[] = { | |
192 | { | |
193 | .start = U300_GPIO_BASE, | |
194 | .end = (U300_GPIO_BASE + SZ_4K - 1), | |
195 | .flags = IORESOURCE_MEM, | |
196 | }, | |
197 | { | |
198 | .name = "gpio0", | |
199 | .start = IRQ_U300_GPIO_PORT0, | |
200 | .end = IRQ_U300_GPIO_PORT0, | |
201 | .flags = IORESOURCE_IRQ, | |
202 | }, | |
203 | { | |
204 | .name = "gpio1", | |
205 | .start = IRQ_U300_GPIO_PORT1, | |
206 | .end = IRQ_U300_GPIO_PORT1, | |
207 | .flags = IORESOURCE_IRQ, | |
208 | }, | |
209 | { | |
210 | .name = "gpio2", | |
211 | .start = IRQ_U300_GPIO_PORT2, | |
212 | .end = IRQ_U300_GPIO_PORT2, | |
213 | .flags = IORESOURCE_IRQ, | |
214 | }, | |
215 | #ifdef U300_COH901571_3 | |
216 | { | |
217 | .name = "gpio3", | |
218 | .start = IRQ_U300_GPIO_PORT3, | |
219 | .end = IRQ_U300_GPIO_PORT3, | |
220 | .flags = IORESOURCE_IRQ, | |
221 | }, | |
222 | { | |
223 | .name = "gpio4", | |
224 | .start = IRQ_U300_GPIO_PORT4, | |
225 | .end = IRQ_U300_GPIO_PORT4, | |
226 | .flags = IORESOURCE_IRQ, | |
227 | }, | |
228 | #ifdef CONFIG_MACH_U300_BS335 | |
229 | { | |
230 | .name = "gpio5", | |
231 | .start = IRQ_U300_GPIO_PORT5, | |
232 | .end = IRQ_U300_GPIO_PORT5, | |
233 | .flags = IORESOURCE_IRQ, | |
234 | }, | |
235 | { | |
236 | .name = "gpio6", | |
237 | .start = IRQ_U300_GPIO_PORT6, | |
238 | .end = IRQ_U300_GPIO_PORT6, | |
239 | .flags = IORESOURCE_IRQ, | |
240 | }, | |
241 | #endif /* CONFIG_MACH_U300_BS335 */ | |
242 | #endif /* U300_COH901571_3 */ | |
243 | }; | |
244 | ||
245 | static struct resource keypad_resources[] = { | |
246 | { | |
247 | .start = U300_KEYPAD_BASE, | |
248 | .end = U300_KEYPAD_BASE + SZ_4K - 1, | |
249 | .flags = IORESOURCE_MEM, | |
250 | }, | |
251 | { | |
252 | .name = "coh901461-press", | |
253 | .start = IRQ_U300_KEYPAD_KEYBF, | |
254 | .end = IRQ_U300_KEYPAD_KEYBF, | |
255 | .flags = IORESOURCE_IRQ, | |
256 | }, | |
257 | { | |
258 | .name = "coh901461-release", | |
259 | .start = IRQ_U300_KEYPAD_KEYBR, | |
260 | .end = IRQ_U300_KEYPAD_KEYBR, | |
261 | .flags = IORESOURCE_IRQ, | |
262 | }, | |
263 | }; | |
264 | ||
265 | static struct resource rtc_resources[] = { | |
266 | { | |
267 | .start = U300_RTC_BASE, | |
268 | .end = U300_RTC_BASE + SZ_4K - 1, | |
269 | .flags = IORESOURCE_MEM, | |
270 | }, | |
271 | { | |
272 | .start = IRQ_U300_RTC, | |
273 | .end = IRQ_U300_RTC, | |
274 | .flags = IORESOURCE_IRQ, | |
275 | }, | |
276 | }; | |
277 | ||
278 | /* | |
279 | * Fsmc does have IRQs: #43 and #44 (NFIF and NFIF2) | |
280 | * but these are not yet used by the driver. | |
281 | */ | |
282 | static struct resource fsmc_resources[] = { | |
283 | { | |
284 | .start = U300_NAND_IF_PHYS_BASE, | |
285 | .end = U300_NAND_IF_PHYS_BASE + SZ_4K - 1, | |
286 | .flags = IORESOURCE_MEM, | |
287 | }, | |
288 | }; | |
289 | ||
290 | static struct resource i2c0_resources[] = { | |
291 | { | |
292 | .start = U300_I2C0_BASE, | |
293 | .end = U300_I2C0_BASE + SZ_4K - 1, | |
294 | .flags = IORESOURCE_MEM, | |
295 | }, | |
296 | { | |
297 | .start = IRQ_U300_I2C0, | |
298 | .end = IRQ_U300_I2C0, | |
299 | .flags = IORESOURCE_IRQ, | |
300 | }, | |
301 | }; | |
302 | ||
303 | static struct resource i2c1_resources[] = { | |
304 | { | |
305 | .start = U300_I2C1_BASE, | |
306 | .end = U300_I2C1_BASE + SZ_4K - 1, | |
307 | .flags = IORESOURCE_MEM, | |
308 | }, | |
309 | { | |
310 | .start = IRQ_U300_I2C1, | |
311 | .end = IRQ_U300_I2C1, | |
312 | .flags = IORESOURCE_IRQ, | |
313 | }, | |
314 | ||
315 | }; | |
316 | ||
317 | static struct resource wdog_resources[] = { | |
318 | { | |
319 | .start = U300_WDOG_BASE, | |
320 | .end = U300_WDOG_BASE + SZ_4K - 1, | |
321 | .flags = IORESOURCE_MEM, | |
322 | }, | |
323 | { | |
324 | .start = IRQ_U300_WDOG, | |
325 | .end = IRQ_U300_WDOG, | |
326 | .flags = IORESOURCE_IRQ, | |
327 | } | |
328 | }; | |
329 | ||
330 | /* TODO: These should be protected by suitable #ifdef's */ | |
331 | static struct resource ave_resources[] = { | |
332 | { | |
333 | .name = "AVE3e I/O Area", | |
334 | .start = U300_VIDEOENC_BASE, | |
335 | .end = U300_VIDEOENC_BASE + SZ_512K - 1, | |
336 | .flags = IORESOURCE_MEM, | |
337 | }, | |
338 | { | |
339 | .name = "AVE3e IRQ0", | |
340 | .start = IRQ_U300_VIDEO_ENC_0, | |
341 | .end = IRQ_U300_VIDEO_ENC_0, | |
342 | .flags = IORESOURCE_IRQ, | |
343 | }, | |
344 | { | |
345 | .name = "AVE3e IRQ1", | |
346 | .start = IRQ_U300_VIDEO_ENC_1, | |
347 | .end = IRQ_U300_VIDEO_ENC_1, | |
348 | .flags = IORESOURCE_IRQ, | |
349 | }, | |
350 | { | |
351 | .name = "AVE3e Physmem Area", | |
352 | .start = 0, /* 0 will be remapped to reserved memory */ | |
353 | .end = SZ_1M - 1, | |
354 | .flags = IORESOURCE_MEM, | |
355 | }, | |
356 | /* | |
357 | * The AVE3e requires two regions of 256MB that it considers | |
358 | * "invisible". The hardware will not be able to access these | |
3ad2f3fb | 359 | * addresses, so they should never point to system RAM. |
bb3cee2b LW |
360 | */ |
361 | { | |
362 | .name = "AVE3e Reserved 0", | |
363 | .start = 0xd0000000, | |
364 | .end = 0xd0000000 + SZ_256M - 1, | |
365 | .flags = IORESOURCE_MEM, | |
366 | }, | |
367 | { | |
368 | .name = "AVE3e Reserved 1", | |
369 | .start = 0xe0000000, | |
370 | .end = 0xe0000000 + SZ_256M - 1, | |
371 | .flags = IORESOURCE_MEM, | |
372 | }, | |
373 | }; | |
374 | ||
375 | static struct platform_device wdog_device = { | |
376 | .name = "wdog", | |
377 | .id = -1, | |
378 | .num_resources = ARRAY_SIZE(wdog_resources), | |
379 | .resource = wdog_resources, | |
380 | }; | |
381 | ||
382 | static struct platform_device i2c0_device = { | |
6be2a0ca | 383 | .name = "stu300", |
bb3cee2b LW |
384 | .id = 0, |
385 | .num_resources = ARRAY_SIZE(i2c0_resources), | |
386 | .resource = i2c0_resources, | |
387 | }; | |
388 | ||
389 | static struct platform_device i2c1_device = { | |
6be2a0ca | 390 | .name = "stu300", |
bb3cee2b LW |
391 | .id = 1, |
392 | .num_resources = ARRAY_SIZE(i2c1_resources), | |
393 | .resource = i2c1_resources, | |
394 | }; | |
395 | ||
396 | static struct platform_device gpio_device = { | |
397 | .name = "u300-gpio", | |
398 | .id = -1, | |
399 | .num_resources = ARRAY_SIZE(gpio_resources), | |
400 | .resource = gpio_resources, | |
401 | }; | |
402 | ||
403 | static struct platform_device keypad_device = { | |
404 | .name = "keypad", | |
405 | .id = -1, | |
406 | .num_resources = ARRAY_SIZE(keypad_resources), | |
407 | .resource = keypad_resources, | |
408 | }; | |
409 | ||
410 | static struct platform_device rtc_device = { | |
378ce74b | 411 | .name = "rtc-coh901331", |
bb3cee2b LW |
412 | .id = -1, |
413 | .num_resources = ARRAY_SIZE(rtc_resources), | |
414 | .resource = rtc_resources, | |
415 | }; | |
416 | ||
417 | static struct platform_device fsmc_device = { | |
418 | .name = "nandif", | |
419 | .id = -1, | |
420 | .num_resources = ARRAY_SIZE(fsmc_resources), | |
421 | .resource = fsmc_resources, | |
422 | }; | |
423 | ||
424 | static struct platform_device ave_device = { | |
425 | .name = "video_enc", | |
426 | .id = -1, | |
427 | .num_resources = ARRAY_SIZE(ave_resources), | |
428 | .resource = ave_resources, | |
429 | }; | |
430 | ||
431 | /* | |
432 | * Notice that AMBA devices are initialized before platform devices. | |
433 | * | |
434 | */ | |
435 | static struct platform_device *platform_devs[] __initdata = { | |
436 | &i2c0_device, | |
437 | &i2c1_device, | |
438 | &keypad_device, | |
439 | &rtc_device, | |
440 | &gpio_device, | |
441 | &fsmc_device, | |
442 | &wdog_device, | |
443 | &ave_device | |
444 | }; | |
445 | ||
446 | ||
447 | /* | |
448 | * Interrupts: the U300 platforms have two pl190 ARM PrimeCells connected | |
449 | * together so some interrupts are connected to the first one and some | |
450 | * to the second one. | |
451 | */ | |
452 | void __init u300_init_irq(void) | |
453 | { | |
454 | u32 mask[2] = {0, 0}; | |
455 | int i; | |
456 | ||
457 | for (i = 0; i < NR_IRQS; i++) | |
458 | set_bit(i, (unsigned long *) &mask[0]); | |
459 | u300_enable_intcon_clock(); | |
6860107a LW |
460 | vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], mask[0]); |
461 | vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], mask[1]); | |
bb3cee2b LW |
462 | } |
463 | ||
464 | ||
465 | /* | |
466 | * U300 platforms peripheral handling | |
467 | */ | |
468 | struct db_chip { | |
469 | u16 chipid; | |
470 | const char *name; | |
471 | }; | |
472 | ||
473 | /* | |
474 | * This is a list of the Digital Baseband chips used in the U300 platform. | |
475 | */ | |
476 | static struct db_chip db_chips[] __initdata = { | |
477 | { | |
478 | .chipid = 0xb800, | |
479 | .name = "DB3000", | |
480 | }, | |
481 | { | |
482 | .chipid = 0xc000, | |
483 | .name = "DB3100", | |
484 | }, | |
485 | { | |
486 | .chipid = 0xc800, | |
487 | .name = "DB3150", | |
488 | }, | |
489 | { | |
490 | .chipid = 0xd800, | |
491 | .name = "DB3200", | |
492 | }, | |
493 | { | |
494 | .chipid = 0xe000, | |
495 | .name = "DB3250", | |
496 | }, | |
497 | { | |
498 | .chipid = 0xe800, | |
499 | .name = "DB3210", | |
500 | }, | |
501 | { | |
502 | .chipid = 0xf000, | |
503 | .name = "DB3350 P1x", | |
504 | }, | |
505 | { | |
506 | .chipid = 0xf100, | |
507 | .name = "DB3350 P2x", | |
508 | }, | |
509 | { | |
510 | .chipid = 0x0000, /* List terminator */ | |
511 | .name = NULL, | |
512 | } | |
513 | }; | |
514 | ||
a2bb9f4d | 515 | static void __init u300_init_check_chip(void) |
bb3cee2b LW |
516 | { |
517 | ||
518 | u16 val; | |
519 | struct db_chip *chip; | |
520 | const char *chipname; | |
521 | const char unknown[] = "UNKNOWN"; | |
522 | ||
523 | /* Read out and print chip ID */ | |
524 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CIDR); | |
525 | /* This is in funky bigendian order... */ | |
526 | val = (val & 0xFFU) << 8 | (val >> 8); | |
527 | chip = db_chips; | |
528 | chipname = unknown; | |
529 | ||
530 | for ( ; chip->chipid; chip++) { | |
531 | if (chip->chipid == (val & 0xFF00U)) { | |
532 | chipname = chip->name; | |
533 | break; | |
534 | } | |
535 | } | |
536 | printk(KERN_INFO "Initializing U300 system on %s baseband chip " \ | |
537 | "(chip ID 0x%04x)\n", chipname, val); | |
538 | ||
539 | #ifdef CONFIG_MACH_U300_BS26 | |
540 | if ((val & 0xFF00U) != 0xc800) { | |
541 | printk(KERN_ERR "Platform configured for BS25/BS26 " \ | |
542 | "with DB3150 but %s detected, expect problems!", | |
543 | chipname); | |
544 | } | |
545 | #endif | |
546 | #ifdef CONFIG_MACH_U300_BS330 | |
547 | if ((val & 0xFF00U) != 0xd800) { | |
548 | printk(KERN_ERR "Platform configured for BS330 " \ | |
549 | "with DB3200 but %s detected, expect problems!", | |
550 | chipname); | |
551 | } | |
552 | #endif | |
553 | #ifdef CONFIG_MACH_U300_BS335 | |
554 | if ((val & 0xFF00U) != 0xf000 && (val & 0xFF00U) != 0xf100) { | |
555 | printk(KERN_ERR "Platform configured for BS365 " \ | |
556 | " with DB3350 but %s detected, expect problems!", | |
557 | chipname); | |
558 | } | |
559 | #endif | |
560 | #ifdef CONFIG_MACH_U300_BS365 | |
561 | if ((val & 0xFF00U) != 0xe800) { | |
562 | printk(KERN_ERR "Platform configured for BS365 " \ | |
563 | "with DB3210 but %s detected, expect problems!", | |
564 | chipname); | |
565 | } | |
566 | #endif | |
567 | ||
568 | ||
569 | } | |
570 | ||
571 | /* | |
572 | * Some devices and their resources require reserved physical memory from | |
573 | * the end of the available RAM. This function traverses the list of devices | |
3ad2f3fb | 574 | * and assigns actual addresses to these. |
bb3cee2b LW |
575 | */ |
576 | static void __init u300_assign_physmem(void) | |
577 | { | |
578 | unsigned long curr_start = __pa(high_memory); | |
579 | int i, j; | |
580 | ||
581 | for (i = 0; i < ARRAY_SIZE(platform_devs); i++) { | |
582 | for (j = 0; j < platform_devs[i]->num_resources; j++) { | |
583 | struct resource *const res = | |
584 | &platform_devs[i]->resource[j]; | |
585 | ||
586 | if (IORESOURCE_MEM == res->flags && | |
587 | 0 == res->start) { | |
588 | res->start = curr_start; | |
589 | res->end += curr_start; | |
590 | curr_start += (res->end - res->start + 1); | |
591 | ||
592 | printk(KERN_INFO "core.c: Mapping RAM " \ | |
593 | "%#x-%#x to device %s:%s\n", | |
594 | res->start, res->end, | |
595 | platform_devs[i]->name, res->name); | |
596 | } | |
597 | } | |
598 | } | |
599 | } | |
600 | ||
601 | void __init u300_init_devices(void) | |
602 | { | |
603 | int i; | |
604 | u16 val; | |
605 | ||
606 | /* Check what platform we run and print some status information */ | |
607 | u300_init_check_chip(); | |
608 | ||
609 | /* Set system to run at PLL208, max performance, a known state. */ | |
610 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | |
611 | val &= ~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK; | |
612 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | |
613 | /* Wait for the PLL208 to lock if not locked in yet */ | |
614 | while (!(readw(U300_SYSCON_VBASE + U300_SYSCON_CSR) & | |
615 | U300_SYSCON_CSR_PLL208_LOCK_IND)); | |
c7c8c78f LW |
616 | /* Initialize SPI device with some board specifics */ |
617 | u300_spi_init(&pl022_device); | |
bb3cee2b LW |
618 | |
619 | /* Register the AMBA devices in the AMBA bus abstraction layer */ | |
620 | u300_clock_primecells(); | |
621 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
622 | struct amba_device *d = amba_devs[i]; | |
623 | amba_device_register(d, &iomem_resource); | |
624 | } | |
625 | u300_unclock_primecells(); | |
626 | ||
627 | u300_assign_physmem(); | |
628 | ||
6be2a0ca LW |
629 | /* Register subdevices on the I2C buses */ |
630 | u300_i2c_register_board_devices(); | |
631 | ||
c7c8c78f LW |
632 | /* Register subdevices on the SPI bus */ |
633 | u300_spi_register_board_devices(); | |
634 | ||
bb3cee2b LW |
635 | /* Register the platform devices */ |
636 | platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); | |
637 | ||
638 | #ifndef CONFIG_MACH_U300_SEMI_IS_SHARED | |
639 | /* | |
640 | * Enable SEMI self refresh. Self-refresh of the SDRAM is entered when | |
641 | * both subsystems are requesting this mode. | |
642 | * If we not share the Acc SDRAM, this is never the case. Therefore | |
643 | * enable it here from the App side. | |
644 | */ | |
645 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) | | |
646 | U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE; | |
647 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR); | |
648 | #endif /* CONFIG_MACH_U300_SEMI_IS_SHARED */ | |
649 | } | |
650 | ||
651 | static int core_module_init(void) | |
652 | { | |
653 | /* | |
654 | * This needs to be initialized later: it needs the input framework | |
655 | * to be initialized first. | |
656 | */ | |
657 | return mmc_init(&mmcsd_device); | |
658 | } | |
659 | module_init(core_module_init); |