Pull misc-2.6.39 into release branch
[pandora-kernel.git] / arch / arm / mach-davinci / devices-da8xx.c
1 /*
2  * DA8XX/OMAP L1XX platform device data
3  *
4  * Copyright (c) 2007-2009, MontaVista Software, Inc. <source@mvista.com>
5  * Derived from code that was:
6  *      Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  */
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/dma-mapping.h>
16 #include <linux/serial_8250.h>
17
18 #include <mach/cputype.h>
19 #include <mach/common.h>
20 #include <mach/time.h>
21 #include <mach/da8xx.h>
22 #include <mach/cpuidle.h>
23
24 #include "clock.h"
25
26 #define DA8XX_TPCC_BASE                 0x01c00000
27 #define DA850_MMCSD1_BASE               0x01e1b000
28 #define DA850_TPCC1_BASE                0x01e30000
29 #define DA8XX_TPTC0_BASE                0x01c08000
30 #define DA8XX_TPTC1_BASE                0x01c08400
31 #define DA850_TPTC2_BASE                0x01e38000
32 #define DA8XX_WDOG_BASE                 0x01c21000 /* DA8XX_TIMER64P1_BASE */
33 #define DA8XX_I2C0_BASE                 0x01c22000
34 #define DA8XX_RTC_BASE                  0x01C23000
35 #define DA8XX_EMAC_CPPI_PORT_BASE       0x01e20000
36 #define DA8XX_EMAC_CPGMACSS_BASE        0x01e22000
37 #define DA8XX_EMAC_CPGMAC_BASE          0x01e23000
38 #define DA8XX_EMAC_MDIO_BASE            0x01e24000
39 #define DA8XX_GPIO_BASE                 0x01e26000
40 #define DA8XX_I2C1_BASE                 0x01e28000
41
42 #define DA8XX_EMAC_CTRL_REG_OFFSET      0x3000
43 #define DA8XX_EMAC_MOD_REG_OFFSET       0x2000
44 #define DA8XX_EMAC_RAM_OFFSET           0x0000
45 #define DA8XX_EMAC_CTRL_RAM_SIZE        SZ_8K
46
47 void __iomem *da8xx_syscfg0_base;
48 void __iomem *da8xx_syscfg1_base;
49
50 static struct plat_serial8250_port da8xx_serial_pdata[] = {
51         {
52                 .mapbase        = DA8XX_UART0_BASE,
53                 .irq            = IRQ_DA8XX_UARTINT0,
54                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
55                                         UPF_IOREMAP,
56                 .iotype         = UPIO_MEM,
57                 .regshift       = 2,
58         },
59         {
60                 .mapbase        = DA8XX_UART1_BASE,
61                 .irq            = IRQ_DA8XX_UARTINT1,
62                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
63                                         UPF_IOREMAP,
64                 .iotype         = UPIO_MEM,
65                 .regshift       = 2,
66         },
67         {
68                 .mapbase        = DA8XX_UART2_BASE,
69                 .irq            = IRQ_DA8XX_UARTINT2,
70                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
71                                         UPF_IOREMAP,
72                 .iotype         = UPIO_MEM,
73                 .regshift       = 2,
74         },
75         {
76                 .flags  = 0,
77         },
78 };
79
80 struct platform_device da8xx_serial_device = {
81         .name   = "serial8250",
82         .id     = PLAT8250_DEV_PLATFORM,
83         .dev    = {
84                 .platform_data  = da8xx_serial_pdata,
85         },
86 };
87
88 static const s8 da8xx_queue_tc_mapping[][2] = {
89         /* {event queue no, TC no} */
90         {0, 0},
91         {1, 1},
92         {-1, -1}
93 };
94
95 static const s8 da8xx_queue_priority_mapping[][2] = {
96         /* {event queue no, Priority} */
97         {0, 3},
98         {1, 7},
99         {-1, -1}
100 };
101
102 static const s8 da850_queue_tc_mapping[][2] = {
103         /* {event queue no, TC no} */
104         {0, 0},
105         {-1, -1}
106 };
107
108 static const s8 da850_queue_priority_mapping[][2] = {
109         /* {event queue no, Priority} */
110         {0, 3},
111         {-1, -1}
112 };
113
114 static struct edma_soc_info da830_edma_cc0_info = {
115         .n_channel              = 32,
116         .n_region               = 4,
117         .n_slot                 = 128,
118         .n_tc                   = 2,
119         .n_cc                   = 1,
120         .queue_tc_mapping       = da8xx_queue_tc_mapping,
121         .queue_priority_mapping = da8xx_queue_priority_mapping,
122 };
123
124 static struct edma_soc_info *da830_edma_info[EDMA_MAX_CC] = {
125         &da830_edma_cc0_info,
126 };
127
128 static struct edma_soc_info da850_edma_cc_info[] = {
129         {
130                 .n_channel              = 32,
131                 .n_region               = 4,
132                 .n_slot                 = 128,
133                 .n_tc                   = 2,
134                 .n_cc                   = 1,
135                 .queue_tc_mapping       = da8xx_queue_tc_mapping,
136                 .queue_priority_mapping = da8xx_queue_priority_mapping,
137         },
138         {
139                 .n_channel              = 32,
140                 .n_region               = 4,
141                 .n_slot                 = 128,
142                 .n_tc                   = 1,
143                 .n_cc                   = 1,
144                 .queue_tc_mapping       = da850_queue_tc_mapping,
145                 .queue_priority_mapping = da850_queue_priority_mapping,
146         },
147 };
148
149 static struct edma_soc_info *da850_edma_info[EDMA_MAX_CC] = {
150         &da850_edma_cc_info[0],
151         &da850_edma_cc_info[1],
152 };
153
154 static struct resource da830_edma_resources[] = {
155         {
156                 .name   = "edma_cc0",
157                 .start  = DA8XX_TPCC_BASE,
158                 .end    = DA8XX_TPCC_BASE + SZ_32K - 1,
159                 .flags  = IORESOURCE_MEM,
160         },
161         {
162                 .name   = "edma_tc0",
163                 .start  = DA8XX_TPTC0_BASE,
164                 .end    = DA8XX_TPTC0_BASE + SZ_1K - 1,
165                 .flags  = IORESOURCE_MEM,
166         },
167         {
168                 .name   = "edma_tc1",
169                 .start  = DA8XX_TPTC1_BASE,
170                 .end    = DA8XX_TPTC1_BASE + SZ_1K - 1,
171                 .flags  = IORESOURCE_MEM,
172         },
173         {
174                 .name   = "edma0",
175                 .start  = IRQ_DA8XX_CCINT0,
176                 .flags  = IORESOURCE_IRQ,
177         },
178         {
179                 .name   = "edma0_err",
180                 .start  = IRQ_DA8XX_CCERRINT,
181                 .flags  = IORESOURCE_IRQ,
182         },
183 };
184
185 static struct resource da850_edma_resources[] = {
186         {
187                 .name   = "edma_cc0",
188                 .start  = DA8XX_TPCC_BASE,
189                 .end    = DA8XX_TPCC_BASE + SZ_32K - 1,
190                 .flags  = IORESOURCE_MEM,
191         },
192         {
193                 .name   = "edma_tc0",
194                 .start  = DA8XX_TPTC0_BASE,
195                 .end    = DA8XX_TPTC0_BASE + SZ_1K - 1,
196                 .flags  = IORESOURCE_MEM,
197         },
198         {
199                 .name   = "edma_tc1",
200                 .start  = DA8XX_TPTC1_BASE,
201                 .end    = DA8XX_TPTC1_BASE + SZ_1K - 1,
202                 .flags  = IORESOURCE_MEM,
203         },
204         {
205                 .name   = "edma_cc1",
206                 .start  = DA850_TPCC1_BASE,
207                 .end    = DA850_TPCC1_BASE + SZ_32K - 1,
208                 .flags  = IORESOURCE_MEM,
209         },
210         {
211                 .name   = "edma_tc2",
212                 .start  = DA850_TPTC2_BASE,
213                 .end    = DA850_TPTC2_BASE + SZ_1K - 1,
214                 .flags  = IORESOURCE_MEM,
215         },
216         {
217                 .name   = "edma0",
218                 .start  = IRQ_DA8XX_CCINT0,
219                 .flags  = IORESOURCE_IRQ,
220         },
221         {
222                 .name   = "edma0_err",
223                 .start  = IRQ_DA8XX_CCERRINT,
224                 .flags  = IORESOURCE_IRQ,
225         },
226         {
227                 .name   = "edma1",
228                 .start  = IRQ_DA850_CCINT1,
229                 .flags  = IORESOURCE_IRQ,
230         },
231         {
232                 .name   = "edma1_err",
233                 .start  = IRQ_DA850_CCERRINT1,
234                 .flags  = IORESOURCE_IRQ,
235         },
236 };
237
238 static struct platform_device da830_edma_device = {
239         .name           = "edma",
240         .id             = -1,
241         .dev = {
242                 .platform_data = da830_edma_info,
243         },
244         .num_resources  = ARRAY_SIZE(da830_edma_resources),
245         .resource       = da830_edma_resources,
246 };
247
248 static struct platform_device da850_edma_device = {
249         .name           = "edma",
250         .id             = -1,
251         .dev = {
252                 .platform_data = da850_edma_info,
253         },
254         .num_resources  = ARRAY_SIZE(da850_edma_resources),
255         .resource       = da850_edma_resources,
256 };
257
258 int __init da830_register_edma(struct edma_rsv_info *rsv)
259 {
260         da830_edma_cc0_info.rsv = rsv;
261
262         return platform_device_register(&da830_edma_device);
263 }
264
265 int __init da850_register_edma(struct edma_rsv_info *rsv[2])
266 {
267         if (rsv) {
268                 da850_edma_cc_info[0].rsv = rsv[0];
269                 da850_edma_cc_info[1].rsv = rsv[1];
270         }
271
272         return platform_device_register(&da850_edma_device);
273 }
274
275 static struct resource da8xx_i2c_resources0[] = {
276         {
277                 .start  = DA8XX_I2C0_BASE,
278                 .end    = DA8XX_I2C0_BASE + SZ_4K - 1,
279                 .flags  = IORESOURCE_MEM,
280         },
281         {
282                 .start  = IRQ_DA8XX_I2CINT0,
283                 .end    = IRQ_DA8XX_I2CINT0,
284                 .flags  = IORESOURCE_IRQ,
285         },
286 };
287
288 static struct platform_device da8xx_i2c_device0 = {
289         .name           = "i2c_davinci",
290         .id             = 1,
291         .num_resources  = ARRAY_SIZE(da8xx_i2c_resources0),
292         .resource       = da8xx_i2c_resources0,
293 };
294
295 static struct resource da8xx_i2c_resources1[] = {
296         {
297                 .start  = DA8XX_I2C1_BASE,
298                 .end    = DA8XX_I2C1_BASE + SZ_4K - 1,
299                 .flags  = IORESOURCE_MEM,
300         },
301         {
302                 .start  = IRQ_DA8XX_I2CINT1,
303                 .end    = IRQ_DA8XX_I2CINT1,
304                 .flags  = IORESOURCE_IRQ,
305         },
306 };
307
308 static struct platform_device da8xx_i2c_device1 = {
309         .name           = "i2c_davinci",
310         .id             = 2,
311         .num_resources  = ARRAY_SIZE(da8xx_i2c_resources1),
312         .resource       = da8xx_i2c_resources1,
313 };
314
315 int __init da8xx_register_i2c(int instance,
316                 struct davinci_i2c_platform_data *pdata)
317 {
318         struct platform_device *pdev;
319
320         if (instance == 0)
321                 pdev = &da8xx_i2c_device0;
322         else if (instance == 1)
323                 pdev = &da8xx_i2c_device1;
324         else
325                 return -EINVAL;
326
327         pdev->dev.platform_data = pdata;
328         return platform_device_register(pdev);
329 }
330
331 static struct resource da8xx_watchdog_resources[] = {
332         {
333                 .start  = DA8XX_WDOG_BASE,
334                 .end    = DA8XX_WDOG_BASE + SZ_4K - 1,
335                 .flags  = IORESOURCE_MEM,
336         },
337 };
338
339 struct platform_device da8xx_wdt_device = {
340         .name           = "watchdog",
341         .id             = -1,
342         .num_resources  = ARRAY_SIZE(da8xx_watchdog_resources),
343         .resource       = da8xx_watchdog_resources,
344 };
345
346 int __init da8xx_register_watchdog(void)
347 {
348         return platform_device_register(&da8xx_wdt_device);
349 }
350
351 static struct resource da8xx_emac_resources[] = {
352         {
353                 .start  = DA8XX_EMAC_CPPI_PORT_BASE,
354                 .end    = DA8XX_EMAC_CPPI_PORT_BASE + SZ_16K - 1,
355                 .flags  = IORESOURCE_MEM,
356         },
357         {
358                 .start  = IRQ_DA8XX_C0_RX_THRESH_PULSE,
359                 .end    = IRQ_DA8XX_C0_RX_THRESH_PULSE,
360                 .flags  = IORESOURCE_IRQ,
361         },
362         {
363                 .start  = IRQ_DA8XX_C0_RX_PULSE,
364                 .end    = IRQ_DA8XX_C0_RX_PULSE,
365                 .flags  = IORESOURCE_IRQ,
366         },
367         {
368                 .start  = IRQ_DA8XX_C0_TX_PULSE,
369                 .end    = IRQ_DA8XX_C0_TX_PULSE,
370                 .flags  = IORESOURCE_IRQ,
371         },
372         {
373                 .start  = IRQ_DA8XX_C0_MISC_PULSE,
374                 .end    = IRQ_DA8XX_C0_MISC_PULSE,
375                 .flags  = IORESOURCE_IRQ,
376         },
377 };
378
379 struct emac_platform_data da8xx_emac_pdata = {
380         .ctrl_reg_offset        = DA8XX_EMAC_CTRL_REG_OFFSET,
381         .ctrl_mod_reg_offset    = DA8XX_EMAC_MOD_REG_OFFSET,
382         .ctrl_ram_offset        = DA8XX_EMAC_RAM_OFFSET,
383         .ctrl_ram_size          = DA8XX_EMAC_CTRL_RAM_SIZE,
384         .version                = EMAC_VERSION_2,
385 };
386
387 static struct platform_device da8xx_emac_device = {
388         .name           = "davinci_emac",
389         .id             = 1,
390         .dev = {
391                 .platform_data  = &da8xx_emac_pdata,
392         },
393         .num_resources  = ARRAY_SIZE(da8xx_emac_resources),
394         .resource       = da8xx_emac_resources,
395 };
396
397 static struct resource da8xx_mdio_resources[] = {
398         {
399                 .start  = DA8XX_EMAC_MDIO_BASE,
400                 .end    = DA8XX_EMAC_MDIO_BASE + SZ_4K - 1,
401                 .flags  = IORESOURCE_MEM,
402         },
403 };
404
405 static struct platform_device da8xx_mdio_device = {
406         .name           = "davinci_mdio",
407         .id             = 0,
408         .num_resources  = ARRAY_SIZE(da8xx_mdio_resources),
409         .resource       = da8xx_mdio_resources,
410 };
411
412 int __init da8xx_register_emac(void)
413 {
414         int ret;
415
416         ret = platform_device_register(&da8xx_mdio_device);
417         if (ret < 0)
418                 return ret;
419         ret = platform_device_register(&da8xx_emac_device);
420         if (ret < 0)
421                 return ret;
422         ret = clk_add_alias(NULL, dev_name(&da8xx_mdio_device.dev),
423                             NULL, &da8xx_emac_device.dev);
424         return ret;
425 }
426
427 static struct resource da830_mcasp1_resources[] = {
428         {
429                 .name   = "mcasp1",
430                 .start  = DAVINCI_DA830_MCASP1_REG_BASE,
431                 .end    = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
432                 .flags  = IORESOURCE_MEM,
433         },
434         /* TX event */
435         {
436                 .start  = DAVINCI_DA830_DMA_MCASP1_AXEVT,
437                 .end    = DAVINCI_DA830_DMA_MCASP1_AXEVT,
438                 .flags  = IORESOURCE_DMA,
439         },
440         /* RX event */
441         {
442                 .start  = DAVINCI_DA830_DMA_MCASP1_AREVT,
443                 .end    = DAVINCI_DA830_DMA_MCASP1_AREVT,
444                 .flags  = IORESOURCE_DMA,
445         },
446 };
447
448 static struct platform_device da830_mcasp1_device = {
449         .name           = "davinci-mcasp",
450         .id             = 1,
451         .num_resources  = ARRAY_SIZE(da830_mcasp1_resources),
452         .resource       = da830_mcasp1_resources,
453 };
454
455 static struct resource da850_mcasp_resources[] = {
456         {
457                 .name   = "mcasp",
458                 .start  = DAVINCI_DA8XX_MCASP0_REG_BASE,
459                 .end    = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
460                 .flags  = IORESOURCE_MEM,
461         },
462         /* TX event */
463         {
464                 .start  = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
465                 .end    = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
466                 .flags  = IORESOURCE_DMA,
467         },
468         /* RX event */
469         {
470                 .start  = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
471                 .end    = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
472                 .flags  = IORESOURCE_DMA,
473         },
474 };
475
476 static struct platform_device da850_mcasp_device = {
477         .name           = "davinci-mcasp",
478         .id             = 0,
479         .num_resources  = ARRAY_SIZE(da850_mcasp_resources),
480         .resource       = da850_mcasp_resources,
481 };
482
483 struct platform_device davinci_pcm_device = {
484         .name   = "davinci-pcm-audio",
485         .id     = -1,
486 };
487
488 void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
489 {
490         platform_device_register(&davinci_pcm_device);
491
492         /* DA830/OMAP-L137 has 3 instances of McASP */
493         if (cpu_is_davinci_da830() && id == 1) {
494                 da830_mcasp1_device.dev.platform_data = pdata;
495                 platform_device_register(&da830_mcasp1_device);
496         } else if (cpu_is_davinci_da850()) {
497                 da850_mcasp_device.dev.platform_data = pdata;
498                 platform_device_register(&da850_mcasp_device);
499         }
500 }
501
502 static const struct display_panel disp_panel = {
503         QVGA,
504         16,
505         16,
506         COLOR_ACTIVE,
507 };
508
509 static struct lcd_ctrl_config lcd_cfg = {
510         &disp_panel,
511         .ac_bias                = 255,
512         .ac_bias_intrpt         = 0,
513         .dma_burst_sz           = 16,
514         .bpp                    = 16,
515         .fdd                    = 255,
516         .tft_alt_mode           = 0,
517         .stn_565_mode           = 0,
518         .mono_8bit_mode         = 0,
519         .invert_line_clock      = 1,
520         .invert_frm_clock       = 1,
521         .sync_edge              = 0,
522         .sync_ctrl              = 1,
523         .raster_order           = 0,
524 };
525
526 struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = {
527         .manu_name              = "sharp",
528         .controller_data        = &lcd_cfg,
529         .type                   = "Sharp_LCD035Q3DG01",
530 };
531
532 struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata = {
533         .manu_name              = "sharp",
534         .controller_data        = &lcd_cfg,
535         .type                   = "Sharp_LK043T1DG01",
536 };
537
538 static struct resource da8xx_lcdc_resources[] = {
539         [0] = { /* registers */
540                 .start  = DA8XX_LCD_CNTRL_BASE,
541                 .end    = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,
542                 .flags  = IORESOURCE_MEM,
543         },
544         [1] = { /* interrupt */
545                 .start  = IRQ_DA8XX_LCDINT,
546                 .end    = IRQ_DA8XX_LCDINT,
547                 .flags  = IORESOURCE_IRQ,
548         },
549 };
550
551 static struct platform_device da8xx_lcdc_device = {
552         .name           = "da8xx_lcdc",
553         .id             = 0,
554         .num_resources  = ARRAY_SIZE(da8xx_lcdc_resources),
555         .resource       = da8xx_lcdc_resources,
556 };
557
558 int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
559 {
560         da8xx_lcdc_device.dev.platform_data = pdata;
561         return platform_device_register(&da8xx_lcdc_device);
562 }
563
564 static struct resource da8xx_mmcsd0_resources[] = {
565         {               /* registers */
566                 .start  = DA8XX_MMCSD0_BASE,
567                 .end    = DA8XX_MMCSD0_BASE + SZ_4K - 1,
568                 .flags  = IORESOURCE_MEM,
569         },
570         {               /* interrupt */
571                 .start  = IRQ_DA8XX_MMCSDINT0,
572                 .end    = IRQ_DA8XX_MMCSDINT0,
573                 .flags  = IORESOURCE_IRQ,
574         },
575         {               /* DMA RX */
576                 .start  = EDMA_CTLR_CHAN(0, 16),
577                 .end    = EDMA_CTLR_CHAN(0, 16),
578                 .flags  = IORESOURCE_DMA,
579         },
580         {               /* DMA TX */
581                 .start  = EDMA_CTLR_CHAN(0, 17),
582                 .end    = EDMA_CTLR_CHAN(0, 17),
583                 .flags  = IORESOURCE_DMA,
584         },
585 };
586
587 static struct platform_device da8xx_mmcsd0_device = {
588         .name           = "davinci_mmc",
589         .id             = 0,
590         .num_resources  = ARRAY_SIZE(da8xx_mmcsd0_resources),
591         .resource       = da8xx_mmcsd0_resources,
592 };
593
594 int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
595 {
596         da8xx_mmcsd0_device.dev.platform_data = config;
597         return platform_device_register(&da8xx_mmcsd0_device);
598 }
599
600 #ifdef CONFIG_ARCH_DAVINCI_DA850
601 static struct resource da850_mmcsd1_resources[] = {
602         {               /* registers */
603                 .start  = DA850_MMCSD1_BASE,
604                 .end    = DA850_MMCSD1_BASE + SZ_4K - 1,
605                 .flags  = IORESOURCE_MEM,
606         },
607         {               /* interrupt */
608                 .start  = IRQ_DA850_MMCSDINT0_1,
609                 .end    = IRQ_DA850_MMCSDINT0_1,
610                 .flags  = IORESOURCE_IRQ,
611         },
612         {               /* DMA RX */
613                 .start  = EDMA_CTLR_CHAN(1, 28),
614                 .end    = EDMA_CTLR_CHAN(1, 28),
615                 .flags  = IORESOURCE_DMA,
616         },
617         {               /* DMA TX */
618                 .start  = EDMA_CTLR_CHAN(1, 29),
619                 .end    = EDMA_CTLR_CHAN(1, 29),
620                 .flags  = IORESOURCE_DMA,
621         },
622 };
623
624 static struct platform_device da850_mmcsd1_device = {
625         .name           = "davinci_mmc",
626         .id             = 1,
627         .num_resources  = ARRAY_SIZE(da850_mmcsd1_resources),
628         .resource       = da850_mmcsd1_resources,
629 };
630
631 int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
632 {
633         da850_mmcsd1_device.dev.platform_data = config;
634         return platform_device_register(&da850_mmcsd1_device);
635 }
636 #endif
637
638 static struct resource da8xx_rtc_resources[] = {
639         {
640                 .start          = DA8XX_RTC_BASE,
641                 .end            = DA8XX_RTC_BASE + SZ_4K - 1,
642                 .flags          = IORESOURCE_MEM,
643         },
644         { /* timer irq */
645                 .start          = IRQ_DA8XX_RTC,
646                 .end            = IRQ_DA8XX_RTC,
647                 .flags          = IORESOURCE_IRQ,
648         },
649         { /* alarm irq */
650                 .start          = IRQ_DA8XX_RTC,
651                 .end            = IRQ_DA8XX_RTC,
652                 .flags          = IORESOURCE_IRQ,
653         },
654 };
655
656 static struct platform_device da8xx_rtc_device = {
657         .name           = "omap_rtc",
658         .id             = -1,
659         .num_resources  = ARRAY_SIZE(da8xx_rtc_resources),
660         .resource       = da8xx_rtc_resources,
661 };
662
663 int da8xx_register_rtc(void)
664 {
665         int ret;
666         void __iomem *base;
667
668         base = ioremap(DA8XX_RTC_BASE, SZ_4K);
669         if (WARN_ON(!base))
670                 return -ENOMEM;
671
672         /* Unlock the rtc's registers */
673         __raw_writel(0x83e70b13, base + 0x6c);
674         __raw_writel(0x95a4f1e0, base + 0x70);
675
676         iounmap(base);
677
678         ret = platform_device_register(&da8xx_rtc_device);
679         if (!ret)
680                 /* Atleast on DA850, RTC is a wakeup source */
681                 device_init_wakeup(&da8xx_rtc_device.dev, true);
682
683         return ret;
684 }
685
686 static void __iomem *da8xx_ddr2_ctlr_base;
687 void __iomem * __init da8xx_get_mem_ctlr(void)
688 {
689         if (da8xx_ddr2_ctlr_base)
690                 return da8xx_ddr2_ctlr_base;
691
692         da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K);
693         if (!da8xx_ddr2_ctlr_base)
694                 pr_warning("%s: Unable to map DDR2 controller", __func__);
695
696         return da8xx_ddr2_ctlr_base;
697 }
698
699 static struct resource da8xx_cpuidle_resources[] = {
700         {
701                 .start          = DA8XX_DDR2_CTL_BASE,
702                 .end            = DA8XX_DDR2_CTL_BASE + SZ_32K - 1,
703                 .flags          = IORESOURCE_MEM,
704         },
705 };
706
707 /* DA8XX devices support DDR2 power down */
708 static struct davinci_cpuidle_config da8xx_cpuidle_pdata = {
709         .ddr2_pdown     = 1,
710 };
711
712
713 static struct platform_device da8xx_cpuidle_device = {
714         .name                   = "cpuidle-davinci",
715         .num_resources          = ARRAY_SIZE(da8xx_cpuidle_resources),
716         .resource               = da8xx_cpuidle_resources,
717         .dev = {
718                 .platform_data  = &da8xx_cpuidle_pdata,
719         },
720 };
721
722 int __init da8xx_register_cpuidle(void)
723 {
724         da8xx_cpuidle_pdata.ddr2_ctlr_base = da8xx_get_mem_ctlr();
725
726         return platform_device_register(&da8xx_cpuidle_device);
727 }