1 /*
2 * linux/arch/arm/mach-omap2/devices.c
3 *
4 * OMAP2 platform device setup/initialization
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
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/io.h>
17 #include <linux/clk.h>
18
19 #include <mach/hardware.h>
20 #include <asm/mach-types.h>
21 #include <asm/mach/map.h>
22
23 #include <mach/control.h>
24 #include <mach/tc.h>
25 #include <mach/board.h>
26 #include <mach/mux.h>
27 #include <mach/gpio.h>
28 #include <mach/eac.h>
29 #include <mach/mmc.h>
30
31 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
32 #define OMAP2_MBOX_BASE IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
33
34 static struct resource mbox_resources[] = {
35 {
36 .start = OMAP2_MBOX_BASE,
37 .end = OMAP2_MBOX_BASE + 0x11f,
38 .flags = IORESOURCE_MEM,
39 },
40 {
41 .start = INT_24XX_MAIL_U0_MPU,
42 .flags = IORESOURCE_IRQ,
43 },
44 {
45 .start = INT_24XX_MAIL_U3_MPU,
46 .flags = IORESOURCE_IRQ,
47 },
48 };
49
50 static struct platform_device mbox_device = {
51 .name = "mailbox",
52 .id = -1,
53 .num_resources = ARRAY_SIZE(mbox_resources),
54 .resource = mbox_resources,
55 };
56
omap_init_mbox(void)57 static inline void omap_init_mbox(void)
58 {
59 platform_device_register(&mbox_device);
60 }
61 #else
omap_init_mbox(void)62 static inline void omap_init_mbox(void) { }
63 #endif
64
65 #if defined(CONFIG_OMAP_STI)
66
67 #if defined(CONFIG_ARCH_OMAP2)
68
69 #define OMAP2_STI_BASE 0x48068000
70 #define OMAP2_STI_CHANNEL_BASE 0x54000000
71 #define OMAP2_STI_IRQ 4
72
73 static struct resource sti_resources[] = {
74 {
75 .start = OMAP2_STI_BASE,
76 .end = OMAP2_STI_BASE + 0x7ff,
77 .flags = IORESOURCE_MEM,
78 },
79 {
80 .start = OMAP2_STI_CHANNEL_BASE,
81 .end = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
82 .flags = IORESOURCE_MEM,
83 },
84 {
85 .start = OMAP2_STI_IRQ,
86 .flags = IORESOURCE_IRQ,
87 }
88 };
89 #elif defined(CONFIG_ARCH_OMAP3)
90
91 #define OMAP3_SDTI_BASE 0x54500000
92 #define OMAP3_SDTI_CHANNEL_BASE 0x54600000
93
94 static struct resource sti_resources[] = {
95 {
96 .start = OMAP3_SDTI_BASE,
97 .end = OMAP3_SDTI_BASE + 0xFFF,
98 .flags = IORESOURCE_MEM,
99 },
100 {
101 .start = OMAP3_SDTI_CHANNEL_BASE,
102 .end = OMAP3_SDTI_CHANNEL_BASE + SZ_1M - 1,
103 .flags = IORESOURCE_MEM,
104 }
105 };
106
107 #endif
108
109 static struct platform_device sti_device = {
110 .name = "sti",
111 .id = -1,
112 .num_resources = ARRAY_SIZE(sti_resources),
113 .resource = sti_resources,
114 };
115
omap_init_sti(void)116 static inline void omap_init_sti(void)
117 {
118 platform_device_register(&sti_device);
119 }
120 #else
omap_init_sti(void)121 static inline void omap_init_sti(void) {}
122 #endif
123
124 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
125
126 #include <mach/mcspi.h>
127
128 #define OMAP2_MCSPI1_BASE 0x48098000
129 #define OMAP2_MCSPI2_BASE 0x4809a000
130 #define OMAP2_MCSPI3_BASE 0x480b8000
131 #define OMAP2_MCSPI4_BASE 0x480ba000
132
133 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
134 .num_cs = 4,
135 };
136
137 static struct resource omap2_mcspi1_resources[] = {
138 {
139 .start = OMAP2_MCSPI1_BASE,
140 .end = OMAP2_MCSPI1_BASE + 0xff,
141 .flags = IORESOURCE_MEM,
142 },
143 };
144
145 static struct platform_device omap2_mcspi1 = {
146 .name = "omap2_mcspi",
147 .id = 1,
148 .num_resources = ARRAY_SIZE(omap2_mcspi1_resources),
149 .resource = omap2_mcspi1_resources,
150 .dev = {
151 .platform_data = &omap2_mcspi1_config,
152 },
153 };
154
155 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
156 .num_cs = 2,
157 };
158
159 static struct resource omap2_mcspi2_resources[] = {
160 {
161 .start = OMAP2_MCSPI2_BASE,
162 .end = OMAP2_MCSPI2_BASE + 0xff,
163 .flags = IORESOURCE_MEM,
164 },
165 };
166
167 static struct platform_device omap2_mcspi2 = {
168 .name = "omap2_mcspi",
169 .id = 2,
170 .num_resources = ARRAY_SIZE(omap2_mcspi2_resources),
171 .resource = omap2_mcspi2_resources,
172 .dev = {
173 .platform_data = &omap2_mcspi2_config,
174 },
175 };
176
177 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
178 static struct omap2_mcspi_platform_config omap2_mcspi3_config = {
179 .num_cs = 2,
180 };
181
182 static struct resource omap2_mcspi3_resources[] = {
183 {
184 .start = OMAP2_MCSPI3_BASE,
185 .end = OMAP2_MCSPI3_BASE + 0xff,
186 .flags = IORESOURCE_MEM,
187 },
188 };
189
190 static struct platform_device omap2_mcspi3 = {
191 .name = "omap2_mcspi",
192 .id = 3,
193 .num_resources = ARRAY_SIZE(omap2_mcspi3_resources),
194 .resource = omap2_mcspi3_resources,
195 .dev = {
196 .platform_data = &omap2_mcspi3_config,
197 },
198 };
199 #endif
200
201 #ifdef CONFIG_ARCH_OMAP3
202 static struct omap2_mcspi_platform_config omap2_mcspi4_config = {
203 .num_cs = 1,
204 };
205
206 static struct resource omap2_mcspi4_resources[] = {
207 {
208 .start = OMAP2_MCSPI4_BASE,
209 .end = OMAP2_MCSPI4_BASE + 0xff,
210 .flags = IORESOURCE_MEM,
211 },
212 };
213
214 static struct platform_device omap2_mcspi4 = {
215 .name = "omap2_mcspi",
216 .id = 4,
217 .num_resources = ARRAY_SIZE(omap2_mcspi4_resources),
218 .resource = omap2_mcspi4_resources,
219 .dev = {
220 .platform_data = &omap2_mcspi4_config,
221 },
222 };
223 #endif
224
omap_init_mcspi(void)225 static void omap_init_mcspi(void)
226 {
227 platform_device_register(&omap2_mcspi1);
228 platform_device_register(&omap2_mcspi2);
229 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
230 platform_device_register(&omap2_mcspi3);
231 #endif
232 #ifdef CONFIG_ARCH_OMAP3
233 platform_device_register(&omap2_mcspi4);
234 #endif
235 }
236
237 #else
omap_init_mcspi(void)238 static inline void omap_init_mcspi(void) {}
239 #endif
240
241 #ifdef CONFIG_SND_OMAP24XX_EAC
242
243 #define OMAP2_EAC_BASE 0x48090000
244
245 static struct resource omap2_eac_resources[] = {
246 {
247 .start = OMAP2_EAC_BASE,
248 .end = OMAP2_EAC_BASE + 0x109,
249 .flags = IORESOURCE_MEM,
250 },
251 };
252
253 static struct platform_device omap2_eac_device = {
254 .name = "omap24xx-eac",
255 .id = -1,
256 .num_resources = ARRAY_SIZE(omap2_eac_resources),
257 .resource = omap2_eac_resources,
258 .dev = {
259 .platform_data = NULL,
260 },
261 };
262
omap_init_eac(struct eac_platform_data * pdata)263 void omap_init_eac(struct eac_platform_data *pdata)
264 {
265 omap2_eac_device.dev.platform_data = pdata;
266 platform_device_register(&omap2_eac_device);
267 }
268
269 #else
omap_init_eac(struct eac_platform_data * pdata)270 void omap_init_eac(struct eac_platform_data *pdata) {}
271 #endif
272
273 #ifdef CONFIG_OMAP_SHA1_MD5
274 static struct resource sha1_md5_resources[] = {
275 {
276 .start = OMAP24XX_SEC_SHA1MD5_BASE,
277 .end = OMAP24XX_SEC_SHA1MD5_BASE + 0x64,
278 .flags = IORESOURCE_MEM,
279 },
280 {
281 .start = INT_24XX_SHA1MD5,
282 .flags = IORESOURCE_IRQ,
283 }
284 };
285
286 static struct platform_device sha1_md5_device = {
287 .name = "OMAP SHA1/MD5",
288 .id = -1,
289 .num_resources = ARRAY_SIZE(sha1_md5_resources),
290 .resource = sha1_md5_resources,
291 };
292
omap_init_sha1_md5(void)293 static void omap_init_sha1_md5(void)
294 {
295 platform_device_register(&sha1_md5_device);
296 }
297 #else
omap_init_sha1_md5(void)298 static inline void omap_init_sha1_md5(void) { }
299 #endif
300
301 /*-------------------------------------------------------------------------*/
302
303 #ifdef CONFIG_ARCH_OMAP3
304
305 #define MMCHS_SYSCONFIG 0x0010
306 #define MMCHS_SYSCONFIG_SWRESET (1 << 1)
307 #define MMCHS_SYSSTATUS 0x0014
308 #define MMCHS_SYSSTATUS_RESETDONE (1 << 0)
309
310 static struct platform_device dummy_pdev = {
311 .dev = {
312 .bus = &platform_bus_type,
313 },
314 };
315
316 /**
317 * omap_hsmmc_reset() - Full reset of each HS-MMC controller
318 *
319 * Ensure that each MMC controller is fully reset. Controllers
320 * left in an unknown state (by bootloader) may prevent retention
321 * or OFF-mode. This is especially important in cases where the
322 * MMC driver is not enabled, _or_ built as a module.
323 *
324 * In order for reset to work, interface, functional and debounce
325 * clocks must be enabled. The debounce clock comes from func_32k_clk
326 * and is not under SW control, so we only enable i- and f-clocks.
327 **/
omap_hsmmc_reset(void)328 static void __init omap_hsmmc_reset(void)
329 {
330 u32 i, nr_controllers = cpu_is_omap34xx() ? OMAP34XX_NR_MMC :
331 OMAP24XX_NR_MMC;
332
333 for (i = 0; i < nr_controllers; i++) {
334 u32 v, base = 0;
335 struct clk *iclk, *fclk;
336 struct device *dev = &dummy_pdev.dev;
337
338 switch (i) {
339 case 0:
340 base = OMAP2_MMC1_BASE;
341 break;
342 case 1:
343 base = OMAP2_MMC2_BASE;
344 break;
345 case 2:
346 base = OMAP3_MMC3_BASE;
347 break;
348 }
349
350 dummy_pdev.id = i;
351 iclk = clk_get(dev, "mmchs_ick");
352 if (iclk && clk_enable(iclk))
353 iclk = NULL;
354
355 fclk = clk_get(dev, "mmchs_fck");
356 if (fclk && clk_enable(fclk))
357 fclk = NULL;
358
359 if (!iclk || !fclk) {
360 printk(KERN_WARNING
361 "%s: Unable to enable clocks for MMC%d, "
362 "cannot reset.\n", __func__, i);
363 break;
364 }
365
366 omap_writel(MMCHS_SYSCONFIG_SWRESET, base + MMCHS_SYSCONFIG);
367 v = omap_readl(base + MMCHS_SYSSTATUS);
368 while (!(omap_readl(base + MMCHS_SYSSTATUS) &
369 MMCHS_SYSSTATUS_RESETDONE))
370 cpu_relax();
371
372 if (fclk) {
373 clk_disable(fclk);
374 clk_put(fclk);
375 }
376 if (iclk) {
377 clk_disable(iclk);
378 clk_put(iclk);
379 }
380 }
381 }
382 #else
omap_hsmmc_reset(void)383 static inline void omap_hsmmc_reset(void) {}
384 #endif
385
386 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
387 defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
388
omap2_mmc_mux(struct omap_mmc_platform_data * mmc_controller,int controller_nr)389 static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
390 int controller_nr)
391 {
392 if (cpu_is_omap2420() && controller_nr == 0) {
393 omap_cfg_reg(H18_24XX_MMC_CMD);
394 omap_cfg_reg(H15_24XX_MMC_CLKI);
395 omap_cfg_reg(G19_24XX_MMC_CLKO);
396 omap_cfg_reg(F20_24XX_MMC_DAT0);
397 omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
398 omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
399 if (mmc_controller->slots[0].wires == 4) {
400 omap_cfg_reg(H14_24XX_MMC_DAT1);
401 omap_cfg_reg(E19_24XX_MMC_DAT2);
402 omap_cfg_reg(D19_24XX_MMC_DAT3);
403 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
404 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
405 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
406 }
407
408 /*
409 * Use internal loop-back in MMC/SDIO Module Input Clock
410 * selection
411 */
412 if (mmc_controller->slots[0].internal_clock) {
413 u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
414 v |= (1 << 24);
415 omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
416 }
417 }
418 }
419
omap2_init_mmc(struct omap_mmc_platform_data ** mmc_data,int nr_controllers)420 void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
421 int nr_controllers)
422 {
423 int i;
424 char *name;
425
426 for (i = 0; i < nr_controllers; i++) {
427 unsigned long base, size;
428 unsigned int irq = 0;
429
430 if (!mmc_data[i])
431 continue;
432
433 omap2_mmc_mux(mmc_data[i], i);
434
435 switch (i) {
436 case 0:
437 base = OMAP2_MMC1_BASE;
438 irq = INT_24XX_MMC_IRQ;
439 break;
440 case 1:
441 base = OMAP2_MMC2_BASE;
442 irq = INT_24XX_MMC2_IRQ;
443 break;
444 case 2:
445 if (!cpu_is_omap34xx())
446 return;
447 base = OMAP3_MMC3_BASE;
448 irq = INT_34XX_MMC3_IRQ;
449 break;
450 default:
451 continue;
452 }
453
454 if (cpu_is_omap2420()) {
455 size = OMAP2420_MMC_SIZE;
456 name = "mmci-omap";
457 } else {
458 size = HSMMC_SIZE;
459 name = "mmci-omap-hs";
460 }
461 omap_mmc_add(name, i, base, size, irq, mmc_data[i]);
462 };
463 }
464
465 #endif
466
467 /*-------------------------------------------------------------------------*/
468
469 #if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
470 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
471 #define OMAP_HDQ_BASE 0x480B2000
472 #endif
473 static struct resource omap_hdq_resources[] = {
474 {
475 .start = OMAP_HDQ_BASE,
476 .end = OMAP_HDQ_BASE + 0x1C,
477 .flags = IORESOURCE_MEM,
478 },
479 {
480 .start = INT_24XX_HDQ_IRQ,
481 .flags = IORESOURCE_IRQ,
482 },
483 };
484 static struct platform_device omap_hdq_dev = {
485 .name = "omap_hdq",
486 .id = 0,
487 .dev = {
488 .platform_data = NULL,
489 },
490 .num_resources = ARRAY_SIZE(omap_hdq_resources),
491 .resource = omap_hdq_resources,
492 };
omap_hdq_init(void)493 static inline void omap_hdq_init(void)
494 {
495 (void) platform_device_register(&omap_hdq_dev);
496 }
497 #else
omap_hdq_init(void)498 static inline void omap_hdq_init(void) {}
499 #endif
500
501 /*-------------------------------------------------------------------------*/
502
omap2_init_devices(void)503 static int __init omap2_init_devices(void)
504 {
505 /* please keep these calls, and their implementations above,
506 * in alphabetical order so they're easier to sort through.
507 */
508 omap_hsmmc_reset();
509 omap_init_mbox();
510 omap_init_mcspi();
511 omap_hdq_init();
512 omap_init_sti();
513 omap_init_sha1_md5();
514
515 return 0;
516 }
517 arch_initcall(omap2_init_devices);
518