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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_MDIO_REG_OFFSET           0x4000
46 #define DA8XX_EMAC_CTRL_RAM_SIZE        SZ_8K
47
48 void __iomem *da8xx_syscfg0_base;
49 void __iomem *da8xx_syscfg1_base;
50
51 static struct plat_serial8250_port da8xx_serial_pdata[] = {
52         {
53                 .mapbase        = DA8XX_UART0_BASE,
54                 .irq            = IRQ_DA8XX_UARTINT0,
55                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
56                                         UPF_IOREMAP,
57                 .iotype         = UPIO_MEM,
58                 .regshift       = 2,
59         },
60         {
61                 .mapbase        = DA8XX_UART1_BASE,
62                 .irq            = IRQ_DA8XX_UARTINT1,
63                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
64                                         UPF_IOREMAP,
65                 .iotype         = UPIO_MEM,
66                 .regshift       = 2,
67         },
68         {
69                 .mapbase        = DA8XX_UART2_BASE,
70                 .irq            = IRQ_DA8XX_UARTINT2,
71                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
72                                         UPF_IOREMAP,
73                 .iotype         = UPIO_MEM,
74                 .regshift       = 2,
75         },
76         {
77                 .flags  = 0,
78         },
79 };
80
81 struct platform_device da8xx_serial_device = {
82         .name   = "serial8250",
83         .id     = PLAT8250_DEV_PLATFORM,
84         .dev    = {
85                 .platform_data  = da8xx_serial_pdata,
86         },
87 };
88
89 static const s8 da8xx_queue_tc_mapping[][2] = {
90         /* {event queue no, TC no} */
91         {0, 0},
92         {1, 1},
93         {-1, -1}
94 };
95
96 static const s8 da8xx_queue_priority_mapping[][2] = {
97         /* {event queue no, Priority} */
98         {0, 3},
99         {1, 7},
100         {-1, -1}
101 };
102
103 static const s8 da850_queue_tc_mapping[][2] = {
104         /* {event queue no, TC no} */
105         {0, 0},
106         {-1, -1}
107 };
108
109 static const s8 da850_queue_priority_mapping[][2] = {
110         /* {event queue no, Priority} */
111         {0, 3},
112         {-1, -1}
113 };
114
115 static struct edma_soc_info da830_edma_cc0_info = {
116         .n_channel              = 32,
117         .n_region               = 4,
118         .n_slot                 = 128,
119         .n_tc                   = 2,
120         .n_cc                   = 1,
121         .queue_tc_mapping       = da8xx_queue_tc_mapping,
122         .queue_priority_mapping = da8xx_queue_priority_mapping,
123 };
124
125 static struct edma_soc_info *da830_edma_info[EDMA_MAX_CC] = {
126         &da830_edma_cc0_info,
127 };
128
129 static struct edma_soc_info da850_edma_cc_info[] = {
130         {
131                 .n_channel              = 32,
132                 .n_region               = 4,
133                 .n_slot                 = 128,
134                 .n_tc                   = 2,
135                 .n_cc                   = 1,
136                 .queue_tc_mapping       = da8xx_queue_tc_mapping,
137                 .queue_priority_mapping = da8xx_queue_priority_mapping,
138         },
139         {
140                 .n_channel              = 32,
141                 .n_region               = 4,
142                 .n_slot                 = 128,
143                 .n_tc                   = 1,
144                 .n_cc                   = 1,
145                 .queue_tc_mapping       = da850_queue_tc_mapping,
146                 .queue_priority_mapping = da850_queue_priority_mapping,
147         },
148 };
149
150 static struct edma_soc_info *da850_edma_info[EDMA_MAX_CC] = {
151         &da850_edma_cc_info[0],
152         &da850_edma_cc_info[1],
153 };
154
155 static struct resource da830_edma_resources[] = {
156         {
157                 .name   = "edma_cc0",
158                 .start  = DA8XX_TPCC_BASE,
159                 .end    = DA8XX_TPCC_BASE + SZ_32K - 1,
160                 .flags  = IORESOURCE_MEM,
161         },
162         {
163                 .name   = "edma_tc0",
164                 .start  = DA8XX_TPTC0_BASE,
165                 .end    = DA8XX_TPTC0_BASE + SZ_1K - 1,
166                 .flags  = IORESOURCE_MEM,
167         },
168         {
169                 .name   = "edma_tc1",
170                 .start  = DA8XX_TPTC1_BASE,
171                 .end    = DA8XX_TPTC1_BASE + SZ_1K - 1,
172                 .flags  = IORESOURCE_MEM,
173         },
174         {
175                 .name   = "edma0",
176                 .start  = IRQ_DA8XX_CCINT0,
177                 .flags  = IORESOURCE_IRQ,
178         },
179         {
180                 .name   = "edma0_err",
181                 .start  = IRQ_DA8XX_CCERRINT,
182                 .flags  = IORESOURCE_IRQ,
183         },
184 };
185
186 static struct resource da850_edma_resources[] = {
187         {
188                 .name   = "edma_cc0",
189                 .start  = DA8XX_TPCC_BASE,
190                 .end    = DA8XX_TPCC_BASE + SZ_32K - 1,
191                 .flags  = IORESOURCE_MEM,
192         },
193         {
194                 .name   = "edma_tc0",
195                 .start  = DA8XX_TPTC0_BASE,
196                 .end    = DA8XX_TPTC0_BASE + SZ_1K - 1,
197                 .flags  = IORESOURCE_MEM,
198         },
199         {
200                 .name   = "edma_tc1",
201                 .start  = DA8XX_TPTC1_BASE,
202                 .end    = DA8XX_TPTC1_BASE + SZ_1K - 1,
203                 .flags  = IORESOURCE_MEM,
204         },
205         {
206                 .name   = "edma_cc1",
207                 .start  = DA850_TPCC1_BASE,
208                 .end    = DA850_TPCC1_BASE + SZ_32K - 1,
209                 .flags  = IORESOURCE_MEM,
210         },
211         {
212                 .name   = "edma_tc2",
213                 .start  = DA850_TPTC2_BASE,
214                 .end    = DA850_TPTC2_BASE + SZ_1K - 1,
215                 .flags  = IORESOURCE_MEM,
216         },
217         {
218                 .name   = "edma0",
219                 .start  = IRQ_DA8XX_CCINT0,
220                 .flags  = IORESOURCE_IRQ,
221         },
222         {
223                 .name   = "edma0_err",
224                 .start  = IRQ_DA8XX_CCERRINT,
225                 .flags  = IORESOURCE_IRQ,
226         },
227         {
228                 .name   = "edma1",
229                 .start  = IRQ_DA850_CCINT1,
230                 .flags  = IORESOURCE_IRQ,
231         },
232         {
233                 .name   = "edma1_err",
234                 .start  = IRQ_DA850_CCERRINT1,
235                 .flags  = IORESOURCE_IRQ,
236         },
237 };
238
239 static struct platform_device da830_edma_device = {
240         .name           = "edma",
241         .id             = -1,
242         .dev = {
243                 .platform_data = da830_edma_info,
244         },
245         .num_resources  = ARRAY_SIZE(da830_edma_resources),
246         .resource       = da830_edma_resources,
247 };
248
249 static struct platform_device da850_edma_device = {
250         .name           = "edma",
251         .id             = -1,
252         .dev = {
253                 .platform_data = da850_edma_info,
254         },
255         .num_resources  = ARRAY_SIZE(da850_edma_resources),
256         .resource       = da850_edma_resources,
257 };
258
259 int __init da830_register_edma(struct edma_rsv_info *rsv)
260 {
261         da830_edma_cc0_info.rsv = rsv;
262
263         return platform_device_register(&da830_edma_device);
264 }
265
266 int __init da850_register_edma(struct edma_rsv_info *rsv[2])
267 {
268         if (rsv) {
269                 da850_edma_cc_info[0].rsv = rsv[0];
270                 da850_edma_cc_info[1].rsv = rsv[1];
271         }
272
273         return platform_device_register(&da850_edma_device);
274 }
275
276 static struct resource da8xx_i2c_resources0[] = {
277         {
278                 .start  = DA8XX_I2C0_BASE,
279                 .end    = DA8XX_I2C0_BASE + SZ_4K - 1,
280                 .flags  = IORESOURCE_MEM,
281         },
282         {
283                 .start  = IRQ_DA8XX_I2CINT0,
284                 .end    = IRQ_DA8XX_I2CINT0,
285                 .flags  = IORESOURCE_IRQ,
286         },
287 };
288
289 static struct platform_device da8xx_i2c_device0 = {
290         .name           = "i2c_davinci",
291         .id             = 1,
292         .num_resources  = ARRAY_SIZE(da8xx_i2c_resources0),
293         .resource       = da8xx_i2c_resources0,
294 };
295
296 static struct resource da8xx_i2c_resources1[] = {
297         {
298                 .start  = DA8XX_I2C1_BASE,
299                 .end    = DA8XX_I2C1_BASE + SZ_4K - 1,
300                 .flags  = IORESOURCE_MEM,
301         },
302         {
303                 .start  = IRQ_DA8XX_I2CINT1,
304                 .end    = IRQ_DA8XX_I2CINT1,
305                 .flags  = IORESOURCE_IRQ,
306         },
307 };
308
309 static struct platform_device da8xx_i2c_device1 = {
310         .name           = "i2c_davinci",
311         .id             = 2,
312         .num_resources  = ARRAY_SIZE(da8xx_i2c_resources1),
313         .resource       = da8xx_i2c_resources1,
314 };
315
316 int __init da8xx_register_i2c(int instance,
317                 struct davinci_i2c_platform_data *pdata)
318 {
319         struct platform_device *pdev;
320
321         if (instance == 0)
322                 pdev = &da8xx_i2c_device0;
323         else if (instance == 1)
324                 pdev = &da8xx_i2c_device1;
325         else
326                 return -EINVAL;
327
328         pdev->dev.platform_data = pdata;
329         return platform_device_register(pdev);
330 }
331
332 static struct resource da8xx_watchdog_resources[] = {
333         {
334                 .start  = DA8XX_WDOG_BASE,
335                 .end    = DA8XX_WDOG_BASE + SZ_4K - 1,
336                 .flags  = IORESOURCE_MEM,
337         },
338 };
339
340 struct platform_device da8xx_wdt_device = {
341         .name           = "watchdog",
342         .id             = -1,
343         .num_resources  = ARRAY_SIZE(da8xx_watchdog_resources),
344         .resource       = da8xx_watchdog_resources,
345 };
346
347 int __init da8xx_register_watchdog(void)
348 {
349         return platform_device_register(&da8xx_wdt_device);
350 }
351
352 static struct resource da8xx_emac_resources[] = {
353         {
354                 .start  = DA8XX_EMAC_CPPI_PORT_BASE,
355                 .end    = DA8XX_EMAC_CPPI_PORT_BASE + SZ_16K - 1,
356                 .flags  = IORESOURCE_MEM,
357         },
358         {
359                 .start  = IRQ_DA8XX_C0_RX_THRESH_PULSE,
360                 .end    = IRQ_DA8XX_C0_RX_THRESH_PULSE,
361                 .flags  = IORESOURCE_IRQ,
362         },
363         {
364                 .start  = IRQ_DA8XX_C0_RX_PULSE,
365                 .end    = IRQ_DA8XX_C0_RX_PULSE,
366                 .flags  = IORESOURCE_IRQ,
367         },
368         {
369                 .start  = IRQ_DA8XX_C0_TX_PULSE,
370                 .end    = IRQ_DA8XX_C0_TX_PULSE,
371                 .flags  = IORESOURCE_IRQ,
372         },
373         {
374                 .start  = IRQ_DA8XX_C0_MISC_PULSE,
375                 .end    = IRQ_DA8XX_C0_MISC_PULSE,
376                 .flags  = IORESOURCE_IRQ,
377         },
378 };
379
380 struct emac_platform_data da8xx_emac_pdata = {
381         .ctrl_reg_offset        = DA8XX_EMAC_CTRL_REG_OFFSET,
382         .ctrl_mod_reg_offset    = DA8XX_EMAC_MOD_REG_OFFSET,
383         .ctrl_ram_offset        = DA8XX_EMAC_RAM_OFFSET,
384         .mdio_reg_offset        = DA8XX_MDIO_REG_OFFSET,
385         .ctrl_ram_size          = DA8XX_EMAC_CTRL_RAM_SIZE,
386         .version                = EMAC_VERSION_2,
387 };
388
389 static struct platform_device da8xx_emac_device = {
390         .name           = "davinci_emac",
391         .id             = 1,
392         .dev = {
393                 .platform_data  = &da8xx_emac_pdata,
394         },
395         .num_resources  = ARRAY_SIZE(da8xx_emac_resources),
396         .resource       = da8xx_emac_resources,
397 };
398
399 static struct resource da8xx_mdio_resources[] = {
400         {
401                 .start  = DA8XX_EMAC_MDIO_BASE,
402                 .end    = DA8XX_EMAC_MDIO_BASE + SZ_4K - 1,
403                 .flags  = IORESOURCE_MEM,
404         },
405 };
406
407 static struct platform_device da8xx_mdio_device = {
408         .name           = "davinci_mdio",
409         .id             = 0,
410         .num_resources  = ARRAY_SIZE(da8xx_mdio_resources),
411         .resource       = da8xx_mdio_resources,
412 };
413
414 int __init da8xx_register_emac(void)
415 {
416         int ret;
417
418         ret = platform_device_register(&da8xx_mdio_device);
419         if (ret < 0)
420                 return ret;
421         ret = platform_device_register(&da8xx_emac_device);
422         if (ret < 0)
423                 return ret;
424         ret = clk_add_alias(NULL, dev_name(&da8xx_mdio_device.dev),
425                             NULL, &da8xx_emac_device.dev);
426         return ret;
427 }
428
429 static struct resource da830_mcasp1_resources[] = {
430         {
431                 .name   = "mcasp1",
432                 .start  = DAVINCI_DA830_MCASP1_REG_BASE,
433                 .end    = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
434                 .flags  = IORESOURCE_MEM,
435         },
436         /* TX event */
437         {
438                 .start  = DAVINCI_DA830_DMA_MCASP1_AXEVT,
439                 .end    = DAVINCI_DA830_DMA_MCASP1_AXEVT,
440                 .flags  = IORESOURCE_DMA,
441         },
442         /* RX event */
443         {
444                 .start  = DAVINCI_DA830_DMA_MCASP1_AREVT,
445                 .end    = DAVINCI_DA830_DMA_MCASP1_AREVT,
446                 .flags  = IORESOURCE_DMA,
447         },
448 };
449
450 static struct platform_device da830_mcasp1_device = {
451         .name           = "davinci-mcasp",
452         .id             = 1,
453         .num_resources  = ARRAY_SIZE(da830_mcasp1_resources),
454         .resource       = da830_mcasp1_resources,
455 };
456
457 static struct resource da850_mcasp_resources[] = {
458         {
459                 .name   = "mcasp",
460                 .start  = DAVINCI_DA8XX_MCASP0_REG_BASE,
461                 .end    = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
462                 .flags  = IORESOURCE_MEM,
463         },
464         /* TX event */
465         {
466                 .start  = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
467                 .end    = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
468                 .flags  = IORESOURCE_DMA,
469         },
470         /* RX event */
471         {
472                 .start  = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
473                 .end    = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
474                 .flags  = IORESOURCE_DMA,
475         },
476 };
477
478 static struct platform_device da850_mcasp_device = {
479         .name           = "davinci-mcasp",
480         .id             = 0,
481         .num_resources  = ARRAY_SIZE(da850_mcasp_resources),
482         .resource       = da850_mcasp_resources,
483 };
484
485 void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
486 {
487         /* DA830/OMAP-L137 has 3 instances of McASP */
488         if (cpu_is_davinci_da830() && id == 1) {
489                 da830_mcasp1_device.dev.platform_data = pdata;
490                 platform_device_register(&da830_mcasp1_device);
491         } else if (cpu_is_davinci_da850()) {
492                 da850_mcasp_device.dev.platform_data = pdata;
493                 platform_device_register(&da850_mcasp_device);
494         }
495 }
496
497 static const struct display_panel disp_panel = {
498         QVGA,
499         16,
500         16,
501         COLOR_ACTIVE,
502 };
503
504 static struct lcd_ctrl_config lcd_cfg = {
505         &disp_panel,
506         .ac_bias                = 255,
507         .ac_bias_intrpt         = 0,
508         .dma_burst_sz           = 16,
509         .bpp                    = 16,
510         .fdd                    = 255,
511         .tft_alt_mode           = 0,
512         .stn_565_mode           = 0,
513         .mono_8bit_mode         = 0,
514         .invert_line_clock      = 1,
515         .invert_frm_clock       = 1,
516         .sync_edge              = 0,
517         .sync_ctrl              = 1,
518         .raster_order           = 0,
519 };
520
521 struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = {
522         .manu_name              = "sharp",
523         .controller_data        = &lcd_cfg,
524         .type                   = "Sharp_LCD035Q3DG01",
525 };
526
527 struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata = {
528         .manu_name              = "sharp",
529         .controller_data        = &lcd_cfg,
530         .type                   = "Sharp_LK043T1DG01",
531 };
532
533 static struct resource da8xx_lcdc_resources[] = {
534         [0] = { /* registers */
535                 .start  = DA8XX_LCD_CNTRL_BASE,
536                 .end    = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,
537                 .flags  = IORESOURCE_MEM,
538         },
539         [1] = { /* interrupt */
540                 .start  = IRQ_DA8XX_LCDINT,
541                 .end    = IRQ_DA8XX_LCDINT,
542                 .flags  = IORESOURCE_IRQ,
543         },
544 };
545
546 static struct platform_device da8xx_lcdc_device = {
547         .name           = "da8xx_lcdc",
548         .id             = 0,
549         .num_resources  = ARRAY_SIZE(da8xx_lcdc_resources),
550         .resource       = da8xx_lcdc_resources,
551 };
552
553 int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
554 {
555         da8xx_lcdc_device.dev.platform_data = pdata;
556         return platform_device_register(&da8xx_lcdc_device);
557 }
558
559 static struct resource da8xx_mmcsd0_resources[] = {
560         {               /* registers */
561                 .start  = DA8XX_MMCSD0_BASE,
562                 .end    = DA8XX_MMCSD0_BASE + SZ_4K - 1,
563                 .flags  = IORESOURCE_MEM,
564         },
565         {               /* interrupt */
566                 .start  = IRQ_DA8XX_MMCSDINT0,
567                 .end    = IRQ_DA8XX_MMCSDINT0,
568                 .flags  = IORESOURCE_IRQ,
569         },
570         {               /* DMA RX */
571                 .start  = EDMA_CTLR_CHAN(0, 16),
572                 .end    = EDMA_CTLR_CHAN(0, 16),
573                 .flags  = IORESOURCE_DMA,
574         },
575         {               /* DMA TX */
576                 .start  = EDMA_CTLR_CHAN(0, 17),
577                 .end    = EDMA_CTLR_CHAN(0, 17),
578                 .flags  = IORESOURCE_DMA,
579         },
580 };
581
582 static struct platform_device da8xx_mmcsd0_device = {
583         .name           = "davinci_mmc",
584         .id             = 0,
585         .num_resources  = ARRAY_SIZE(da8xx_mmcsd0_resources),
586         .resource       = da8xx_mmcsd0_resources,
587 };
588
589 int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
590 {
591         da8xx_mmcsd0_device.dev.platform_data = config;
592         return platform_device_register(&da8xx_mmcsd0_device);
593 }
594
595 #ifdef CONFIG_ARCH_DAVINCI_DA850
596 static struct resource da850_mmcsd1_resources[] = {
597         {               /* registers */
598                 .start  = DA850_MMCSD1_BASE,
599                 .end    = DA850_MMCSD1_BASE + SZ_4K - 1,
600                 .flags  = IORESOURCE_MEM,
601         },
602         {               /* interrupt */
603                 .start  = IRQ_DA850_MMCSDINT0_1,
604                 .end    = IRQ_DA850_MMCSDINT0_1,
605                 .flags  = IORESOURCE_IRQ,
606         },
607         {               /* DMA RX */
608                 .start  = EDMA_CTLR_CHAN(1, 28),
609                 .end    = EDMA_CTLR_CHAN(1, 28),
610                 .flags  = IORESOURCE_DMA,
611         },
612         {               /* DMA TX */
613                 .start  = EDMA_CTLR_CHAN(1, 29),
614                 .end    = EDMA_CTLR_CHAN(1, 29),
615                 .flags  = IORESOURCE_DMA,
616         },
617 };
618
619 static struct platform_device da850_mmcsd1_device = {
620         .name           = "davinci_mmc",
621         .id             = 1,
622         .num_resources  = ARRAY_SIZE(da850_mmcsd1_resources),
623         .resource       = da850_mmcsd1_resources,
624 };
625
626 int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
627 {
628         da850_mmcsd1_device.dev.platform_data = config;
629         return platform_device_register(&da850_mmcsd1_device);
630 }
631 #endif
632
633 static struct resource da8xx_rtc_resources[] = {
634         {
635                 .start          = DA8XX_RTC_BASE,
636                 .end            = DA8XX_RTC_BASE + SZ_4K - 1,
637                 .flags          = IORESOURCE_MEM,
638         },
639         { /* timer irq */
640                 .start          = IRQ_DA8XX_RTC,
641                 .end            = IRQ_DA8XX_RTC,
642                 .flags          = IORESOURCE_IRQ,
643         },
644         { /* alarm irq */
645                 .start          = IRQ_DA8XX_RTC,
646                 .end            = IRQ_DA8XX_RTC,
647                 .flags          = IORESOURCE_IRQ,
648         },
649 };
650
651 static struct platform_device da8xx_rtc_device = {
652         .name           = "omap_rtc",
653         .id             = -1,
654         .num_resources  = ARRAY_SIZE(da8xx_rtc_resources),
655         .resource       = da8xx_rtc_resources,
656 };
657
658 int da8xx_register_rtc(void)
659 {
660         int ret;
661         void __iomem *base;
662
663         base = ioremap(DA8XX_RTC_BASE, SZ_4K);
664         if (WARN_ON(!base))
665                 return -ENOMEM;
666
667         /* Unlock the rtc's registers */
668         __raw_writel(0x83e70b13, base + 0x6c);
669         __raw_writel(0x95a4f1e0, base + 0x70);
670
671         iounmap(base);
672
673         ret = platform_device_register(&da8xx_rtc_device);
674         if (!ret)
675                 /* Atleast on DA850, RTC is a wakeup source */
676                 device_init_wakeup(&da8xx_rtc_device.dev, true);
677
678         return ret;
679 }
680
681 static void __iomem *da8xx_ddr2_ctlr_base;
682 void __iomem * __init da8xx_get_mem_ctlr(void)
683 {
684         if (da8xx_ddr2_ctlr_base)
685                 return da8xx_ddr2_ctlr_base;
686
687         da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K);
688         if (!da8xx_ddr2_ctlr_base)
689                 pr_warning("%s: Unable to map DDR2 controller", __func__);
690
691         return da8xx_ddr2_ctlr_base;
692 }
693
694 static struct resource da8xx_cpuidle_resources[] = {
695         {
696                 .start          = DA8XX_DDR2_CTL_BASE,
697                 .end            = DA8XX_DDR2_CTL_BASE + SZ_32K - 1,
698                 .flags          = IORESOURCE_MEM,
699         },
700 };
701
702 /* DA8XX devices support DDR2 power down */
703 static struct davinci_cpuidle_config da8xx_cpuidle_pdata = {
704         .ddr2_pdown     = 1,
705 };
706
707
708 static struct platform_device da8xx_cpuidle_device = {
709         .name                   = "cpuidle-davinci",
710         .num_resources          = ARRAY_SIZE(da8xx_cpuidle_resources),
711         .resource               = da8xx_cpuidle_resources,
712         .dev = {
713                 .platform_data  = &da8xx_cpuidle_pdata,
714         },
715 };
716
717 int __init da8xx_register_cpuidle(void)
718 {
719         da8xx_cpuidle_pdata.ddr2_ctlr_base = da8xx_get_mem_ctlr();
720
721         return platform_device_register(&da8xx_cpuidle_device);
722 }