Merge branch 'for-next' of git://git.o-hand.com/linux-mfd
[linux-2.6] / arch / arm / mach-omap2 / devices.c
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
57 static inline void omap_init_mbox(void)
58 {
59         platform_device_register(&mbox_device);
60 }
61 #else
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
116 static inline void omap_init_sti(void)
117 {
118         platform_device_register(&sti_device);
119 }
120 #else
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
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
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
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
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
293 static void omap_init_sha1_md5(void)
294 {
295         platform_device_register(&sha1_md5_device);
296 }
297 #else
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  **/
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
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
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
420 void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
421                         int nr_controllers)
422 {
423         int i;
424
425         for (i = 0; i < nr_controllers; i++) {
426                 unsigned long base, size;
427                 unsigned int irq = 0;
428
429                 if (!mmc_data[i])
430                         continue;
431
432                 omap2_mmc_mux(mmc_data[i], i);
433
434                 switch (i) {
435                 case 0:
436                         base = OMAP2_MMC1_BASE;
437                         irq = INT_24XX_MMC_IRQ;
438                         break;
439                 case 1:
440                         base = OMAP2_MMC2_BASE;
441                         irq = INT_24XX_MMC2_IRQ;
442                         break;
443                 case 2:
444                         if (!cpu_is_omap34xx())
445                                 return;
446                         base = OMAP3_MMC3_BASE;
447                         irq = INT_34XX_MMC3_IRQ;
448                         break;
449                 default:
450                         continue;
451                 }
452
453                 if (cpu_is_omap2420())
454                         size = OMAP2420_MMC_SIZE;
455                 else
456                         size = HSMMC_SIZE;
457
458                 omap_mmc_add(i, base, size, irq, mmc_data[i]);
459         };
460 }
461
462 #endif
463
464 /*-------------------------------------------------------------------------*/
465
466 #if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
467 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
468 #define OMAP_HDQ_BASE   0x480B2000
469 #endif
470 static struct resource omap_hdq_resources[] = {
471         {
472                 .start          = OMAP_HDQ_BASE,
473                 .end            = OMAP_HDQ_BASE + 0x1C,
474                 .flags          = IORESOURCE_MEM,
475         },
476         {
477                 .start          = INT_24XX_HDQ_IRQ,
478                 .flags          = IORESOURCE_IRQ,
479         },
480 };
481 static struct platform_device omap_hdq_dev = {
482         .name = "omap_hdq",
483         .id = 0,
484         .dev = {
485                 .platform_data = NULL,
486         },
487         .num_resources  = ARRAY_SIZE(omap_hdq_resources),
488         .resource       = omap_hdq_resources,
489 };
490 static inline void omap_hdq_init(void)
491 {
492         (void) platform_device_register(&omap_hdq_dev);
493 }
494 #else
495 static inline void omap_hdq_init(void) {}
496 #endif
497
498 /*-------------------------------------------------------------------------*/
499
500 static int __init omap2_init_devices(void)
501 {
502         /* please keep these calls, and their implementations above,
503          * in alphabetical order so they're easier to sort through.
504          */
505         omap_hsmmc_reset();
506         omap_init_mbox();
507         omap_init_mcspi();
508         omap_hdq_init();
509         omap_init_sti();
510         omap_init_sha1_md5();
511
512         return 0;
513 }
514 arch_initcall(omap2_init_devices);