ARM: pxa: Access SMEMC via virtual addresses
[linux-2.6.git] / arch / arm / mach-pxa / stargate2.c
1 /*
2  *  linux/arch/arm/mach-pxa/stargate2.c
3  *
4  *  Author:     Ed C. Epp
5  *  Created:    Nov 05, 2002
6  *  Copyright:  Intel Corp.
7  *
8  *  Modified 2009:  Jonathan Cameron <jic23@cam.ac.uk>
9  *
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License version 2 as
12  *  published by the Free Software Foundation.
13  */
14
15 #include <linux/init.h>
16 #include <linux/device.h>
17 #include <linux/interrupt.h>
18 #include <linux/sched.h>
19 #include <linux/bitops.h>
20 #include <linux/fb.h>
21 #include <linux/delay.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/machine.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/plat-ram.h>
26 #include <linux/mtd/partitions.h>
27
28 #include <linux/i2c/pcf857x.h>
29 #include <linux/i2c/at24.h>
30 #include <linux/smc91x.h>
31 #include <linux/gpio.h>
32 #include <linux/leds.h>
33
34 #include <asm/types.h>
35 #include <asm/setup.h>
36 #include <asm/memory.h>
37 #include <asm/mach-types.h>
38 #include <asm/irq.h>
39
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/irq.h>
43 #include <asm/mach/flash.h>
44
45 #include <mach/pxa27x.h>
46 #include <plat/i2c.h>
47 #include <mach/mmc.h>
48 #include <mach/udc.h>
49 #include <mach/pxa2xx_spi.h>
50 #include <mach/pxa27x-udc.h>
51 #include <mach/smemc.h>
52
53 #include <linux/spi/spi.h>
54 #include <linux/mfd/da903x.h>
55 #include <linux/sht15.h>
56
57 #include "devices.h"
58 #include "generic.h"
59
60 #define STARGATE_NR_IRQS        (IRQ_BOARD_START + 8)
61
62 /* Bluetooth */
63 #define SG2_BT_RESET            81
64
65 /* SD */
66 #define SG2_GPIO_nSD_DETECT     90
67 #define SG2_SD_POWER_ENABLE     89
68
69 static unsigned long sg2_im2_unified_pin_config[] __initdata = {
70         /* Device Identification for wakeup*/
71         GPIO102_GPIO,
72         /* DA9030 */
73         GPIO1_GPIO,
74
75         /* MMC */
76         GPIO32_MMC_CLK,
77         GPIO112_MMC_CMD,
78         GPIO92_MMC_DAT_0,
79         GPIO109_MMC_DAT_1,
80         GPIO110_MMC_DAT_2,
81         GPIO111_MMC_DAT_3,
82
83         /* 802.15.4 radio - driver out of mainline */
84         GPIO22_GPIO,                    /* CC_RSTN */
85         GPIO114_GPIO,                   /* CC_FIFO */
86         GPIO116_GPIO,                   /* CC_CCA */
87         GPIO0_GPIO,                     /* CC_FIFOP */
88         GPIO16_GPIO,                    /* CCSFD */
89         GPIO115_GPIO,                   /* Power enable */
90
91         /* I2C */
92         GPIO117_I2C_SCL,
93         GPIO118_I2C_SDA,
94
95         /* SSP 3 - 802.15.4 radio */
96         GPIO39_GPIO,                    /* Chip Select */
97         GPIO34_SSP3_SCLK,
98         GPIO35_SSP3_TXD,
99         GPIO41_SSP3_RXD,
100
101         /* SSP 2 to daughter boards */
102         GPIO11_SSP2_RXD,
103         GPIO38_SSP2_TXD,
104         GPIO36_SSP2_SCLK,
105         GPIO37_GPIO, /* chip select */
106
107         /* SSP 1 - to daughter boards */
108         GPIO24_GPIO,                    /* Chip Select */
109         GPIO23_SSP1_SCLK,
110         GPIO25_SSP1_TXD,
111         GPIO26_SSP1_RXD,
112
113         /* BTUART Basic Connector*/
114         GPIO42_BTUART_RXD,
115         GPIO43_BTUART_TXD,
116         GPIO44_BTUART_CTS,
117         GPIO45_BTUART_RTS,
118
119         /* STUART  - IM2 via debug board not sure on SG2*/
120         GPIO46_STUART_RXD,
121         GPIO47_STUART_TXD,
122
123         /* Basic sensor board */
124         GPIO96_GPIO,    /* accelerometer interrupt */
125         GPIO99_GPIO,    /* ADC interrupt */
126
127         /* SHT15 */
128         GPIO100_GPIO,
129         GPIO98_GPIO,
130
131         /* Basic sensor board */
132         GPIO96_GPIO,    /* accelerometer interrupt */
133         GPIO99_GPIO,    /* ADC interrupt */
134
135         /* Connector pins specified as gpios */
136         GPIO94_GPIO, /* large basic connector pin 14 */
137         GPIO10_GPIO, /* large basic connector pin 23 */
138 };
139
140 static struct sht15_platform_data platform_data_sht15 = {
141         .gpio_data =  100,
142         .gpio_sck  =  98,
143 };
144
145 static struct platform_device sht15 = {
146         .name = "sht15",
147         .id = -1,
148         .dev = {
149                 .platform_data = &platform_data_sht15,
150         },
151 };
152
153 static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
154         {
155                 .dev = &sht15.dev,
156                 .supply = "vcc",
157         },
158 };
159
160 enum stargate2_ldos{
161         vcc_vref,
162         vcc_cc2420,
163         /* a mote connector? */
164         vcc_mica,
165         /* the CSR bluecore chip */
166         vcc_bt,
167         /* The two voltages available to sensor boards */
168         vcc_sensor_1_8,
169         vcc_sensor_3,
170         /* directly connected to the pxa27x */
171         vcc_sram_ext,
172         vcc_pxa_pll,
173         vcc_pxa_usim, /* Reference voltage for certain gpios */
174         vcc_pxa_mem,
175         vcc_pxa_flash,
176         vcc_pxa_core, /*Dc-Dc buck not yet supported */
177         vcc_lcd,
178         vcc_bb,
179         vcc_bbio, /*not sure!*/
180         vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
181 };
182
183 /* The values of the various regulator constraints are obviously dependent
184  * on exactly what is wired to each ldo.  Unfortunately this information is
185  * not generally available.  More information has been requested from Xbow.
186  */
187 static struct regulator_init_data stargate2_ldo_init_data[] = {
188         [vcc_bbio] = {
189                 .constraints = { /* board default 1.8V */
190                         .name = "vcc_bbio",
191                         .min_uV = 1800000,
192                         .max_uV = 1800000,
193                 },
194         },
195         [vcc_bb] = {
196                 .constraints = { /* board default 2.8V */
197                         .name = "vcc_bb",
198                         .min_uV = 2700000,
199                         .max_uV = 3000000,
200                 },
201         },
202         [vcc_pxa_flash] = {
203                 .constraints = {/* default is 1.8V */
204                         .name = "vcc_pxa_flash",
205                         .min_uV = 1800000,
206                         .max_uV = 1800000,
207                 },
208         },
209         [vcc_cc2420] = { /* also vcc_io */
210                 .constraints = {
211                         /* board default is 2.8V */
212                         .name = "vcc_cc2420",
213                         .min_uV = 2700000,
214                         .max_uV = 3300000,
215                 },
216         },
217         [vcc_vref] = { /* Reference for what? */
218                 .constraints = { /* default 1.8V */
219                         .name = "vcc_vref",
220                         .min_uV = 1800000,
221                         .max_uV = 1800000,
222                 },
223         },
224         [vcc_sram_ext] = {
225                 .constraints = { /* default 2.8V */
226                         .name = "vcc_sram_ext",
227                         .min_uV = 2800000,
228                         .max_uV = 2800000,
229                 },
230         },
231         [vcc_mica] = {
232                 .constraints = { /* default 2.8V */
233                         .name = "vcc_mica",
234                         .min_uV = 2800000,
235                         .max_uV = 2800000,
236                 },
237         },
238         [vcc_bt] = {
239                 .constraints = { /* default 2.8V */
240                         .name = "vcc_bt",
241                         .min_uV = 2800000,
242                         .max_uV = 2800000,
243                 },
244         },
245         [vcc_lcd] = {
246                 .constraints = { /* default 2.8V */
247                         .name = "vcc_lcd",
248                         .min_uV = 2700000,
249                         .max_uV = 3300000,
250                 },
251         },
252         [vcc_io] = { /* Same or higher than everything
253                           * bar vccbat and vccusb */
254                 .constraints = { /* default 2.8V */
255                         .name = "vcc_io",
256                         .min_uV = 2692000,
257                         .max_uV = 3300000,
258                 },
259         },
260         [vcc_sensor_1_8] = {
261                 .constraints = { /* default 1.8V */
262                         .name = "vcc_sensor_1_8",
263                         .min_uV = 1800000,
264                         .max_uV = 1800000,
265                 },
266         },
267         [vcc_sensor_3] = { /* curiously default 2.8V */
268                 .constraints = {
269                         .name = "vcc_sensor_3",
270                         .min_uV = 2800000,
271                         .max_uV = 3000000,
272                 },
273                 .num_consumer_supplies = ARRAY_SIZE(stargate2_sensor_3_con),
274                 .consumer_supplies = stargate2_sensor_3_con,
275         },
276         [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/
277                 .constraints = {
278                         .name = "vcc_pxa_pll",
279                         .min_uV = 1170000,
280                         .max_uV = 1430000,
281                 },
282         },
283         [vcc_pxa_usim] = {
284                 .constraints = { /* default 1.8V */
285                         .name = "vcc_pxa_usim",
286                         .min_uV = 1710000,
287                         .max_uV = 2160000,
288                 },
289         },
290         [vcc_pxa_mem] = {
291                 .constraints = { /* default 1.8V */
292                         .name = "vcc_pxa_mem",
293                         .min_uV = 1800000,
294                         .max_uV = 1800000,
295                 },
296         },
297 };
298
299 static struct mtd_partition stargate2flash_partitions[] = {
300         {
301                 .name = "Bootloader",
302                 .size = 0x00040000,
303                 .offset = 0,
304                 .mask_flags = 0,
305         }, {
306                 .name = "Kernel",
307                 .size = 0x00200000,
308                 .offset = 0x00040000,
309                 .mask_flags = 0
310         }, {
311                 .name = "Filesystem",
312                 .size = 0x01DC0000,
313                 .offset = 0x00240000,
314                 .mask_flags = 0
315         },
316 };
317
318 static struct resource flash_resources = {
319         .start = PXA_CS0_PHYS,
320         .end = PXA_CS0_PHYS + SZ_32M - 1,
321         .flags = IORESOURCE_MEM,
322 };
323
324 static struct flash_platform_data stargate2_flash_data = {
325         .map_name = "cfi_probe",
326         .parts = stargate2flash_partitions,
327         .nr_parts = ARRAY_SIZE(stargate2flash_partitions),
328         .name = "PXA27xOnChipROM",
329         .width = 2,
330 };
331
332 static struct platform_device stargate2_flash_device = {
333         .name = "pxa2xx-flash",
334         .id = 0,
335         .dev = {
336                 .platform_data = &stargate2_flash_data,
337         },
338         .resource = &flash_resources,
339         .num_resources = 1,
340 };
341
342 static struct pxa2xx_spi_master pxa_ssp_master_0_info = {
343         .num_chipselect = 1,
344 };
345
346 static struct pxa2xx_spi_master pxa_ssp_master_1_info = {
347         .num_chipselect = 1,
348 };
349
350 static struct pxa2xx_spi_master pxa_ssp_master_2_info = {
351         .num_chipselect = 1,
352 };
353
354 /* An upcoming kernel change will scrap SFRM usage so these
355  * drivers have been moved to use gpio's via cs_control */
356 static struct pxa2xx_spi_chip staccel_chip_info = {
357         .tx_threshold = 8,
358         .rx_threshold = 8,
359         .dma_burst_size = 8,
360         .timeout = 235,
361         .gpio_cs = 24,
362 };
363
364 static struct pxa2xx_spi_chip cc2420_info = {
365         .tx_threshold = 8,
366         .rx_threshold = 8,
367         .dma_burst_size = 8,
368         .timeout = 235,
369         .gpio_cs = 39,
370 };
371
372 static struct spi_board_info spi_board_info[] __initdata = {
373         {
374                 .modalias = "lis3l02dq",
375                 .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
376                 .bus_num = 1,
377                 .chip_select = 0,
378                 .controller_data = &staccel_chip_info,
379                 .irq = IRQ_GPIO(96),
380         }, {
381                 .modalias = "cc2420",
382                 .max_speed_hz = 6500000,
383                 .bus_num = 3,
384                 .chip_select = 0,
385                 .controller_data = &cc2420_info,
386         },
387 };
388
389 static void sg2_udc_command(int cmd)
390 {
391         switch (cmd) {
392         case PXA2XX_UDC_CMD_CONNECT:
393                 UP2OCR |=  UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE;
394                 break;
395         case PXA2XX_UDC_CMD_DISCONNECT:
396                 UP2OCR &= ~(UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE);
397                 break;
398         }
399 }
400
401 static struct i2c_pxa_platform_data i2c_pwr_pdata = {
402         .fast_mode = 1,
403 };
404
405 static struct i2c_pxa_platform_data i2c_pdata = {
406         .fast_mode = 1,
407 };
408
409 static void __init imote2_stargate2_init(void)
410 {
411
412         pxa2xx_mfp_config(ARRAY_AND_SIZE(sg2_im2_unified_pin_config));
413
414         pxa_set_ffuart_info(NULL);
415         pxa_set_btuart_info(NULL);
416         pxa_set_stuart_info(NULL);
417
418         pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
419         pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
420         pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
421         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
422
423
424         pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
425         pxa_set_i2c_info(&i2c_pdata);
426 }
427
428 #ifdef CONFIG_MACH_INTELMOTE2
429 /* As the the imote2 doesn't currently have a conventional SD slot
430  * there is no option to hotplug cards, making all this rather simple
431  */
432 static int imote2_mci_get_ro(struct device *dev)
433 {
434         return 0;
435 }
436
437 /* Rather simple case as hotplugging not possible */
438 static struct pxamci_platform_data imote2_mci_platform_data = {
439         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */
440         .get_ro = imote2_mci_get_ro,
441         .gpio_card_detect = -1,
442         .gpio_card_ro   = -1,
443         .gpio_power = -1,
444 };
445
446 static struct gpio_led imote2_led_pins[] = {
447         {
448                 .name       =  "imote2:red",
449                 .gpio       = 103,
450                 .active_low = 1,
451         }, {
452                 .name       = "imote2:green",
453                 .gpio       = 104,
454                 .active_low = 1,
455         }, {
456                 .name       = "imote2:blue",
457                 .gpio       = 105,
458                 .active_low = 1,
459         },
460 };
461
462 static struct gpio_led_platform_data imote2_led_data = {
463         .num_leds = ARRAY_SIZE(imote2_led_pins),
464         .leds     = imote2_led_pins,
465 };
466
467 static struct platform_device imote2_leds = {
468         .name = "leds-gpio",
469         .id   = -1,
470         .dev = {
471                 .platform_data = &imote2_led_data,
472         },
473 };
474
475 static struct da903x_subdev_info imote2_da9030_subdevs[] = {
476         {
477                 .name = "da903x-regulator",
478                 .id = DA9030_ID_LDO2,
479                 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
480         }, {
481                 .name = "da903x-regulator",
482                 .id = DA9030_ID_LDO3,
483                 .platform_data = &stargate2_ldo_init_data[vcc_bb],
484         }, {
485                 .name = "da903x-regulator",
486                 .id = DA9030_ID_LDO4,
487                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
488         }, {
489                 .name = "da903x-regulator",
490                 .id = DA9030_ID_LDO5,
491                 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
492         }, {
493                 .name = "da903x-regulator",
494                 .id = DA9030_ID_LDO6,
495                 .platform_data = &stargate2_ldo_init_data[vcc_vref],
496         }, {
497                 .name = "da903x-regulator",
498                 .id = DA9030_ID_LDO7,
499                 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
500         }, {
501                 .name = "da903x-regulator",
502                 .id = DA9030_ID_LDO8,
503                 .platform_data = &stargate2_ldo_init_data[vcc_mica],
504         }, {
505                 .name = "da903x-regulator",
506                 .id = DA9030_ID_LDO9,
507                 .platform_data = &stargate2_ldo_init_data[vcc_bt],
508         }, {
509                 .name = "da903x-regulator",
510                 .id = DA9030_ID_LDO10,
511                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
512         }, {
513                 .name = "da903x-regulator",
514                 .id = DA9030_ID_LDO11,
515                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
516         }, {
517                 .name = "da903x-regulator",
518                 .id = DA9030_ID_LDO12,
519                 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
520         }, {
521                 .name = "da903x-regulator",
522                 .id = DA9030_ID_LDO15,
523                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
524         }, {
525                 .name = "da903x-regulator",
526                 .id = DA9030_ID_LDO17,
527                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
528         }, {
529                 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
530                 .id = DA9030_ID_LDO18,
531                 .platform_data = &stargate2_ldo_init_data[vcc_io],
532         }, {
533                 .name = "da903x-regulator",
534                 .id = DA9030_ID_LDO19,
535                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
536         },
537 };
538
539 static struct da903x_platform_data imote2_da9030_pdata = {
540         .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs),
541         .subdevs = imote2_da9030_subdevs,
542 };
543
544 static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
545         {
546                 .type = "da9030",
547                 .addr = 0x49,
548                 .platform_data = &imote2_da9030_pdata,
549                 .irq = gpio_to_irq(1),
550         },
551 };
552
553 static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
554         { /* UCAM sensor board */
555                 .type = "max1239",
556                 .addr = 0x35,
557         }, { /* ITS400 Sensor board only */
558                 .type = "max1363",
559                 .addr = 0x34,
560                 /* Through a nand gate - Also beware, on V2 sensor board the
561                  * pull up resistors are missing.
562                  */
563                 .irq = IRQ_GPIO(99),
564         }, { /* ITS400 Sensor board only */
565                 .type = "tsl2561",
566                 .addr = 0x49,
567                 /* Through a nand gate - Also beware, on V2 sensor board the
568                  * pull up resistors are missing.
569                  */
570                 .irq = IRQ_GPIO(99),
571         }, { /* ITS400 Sensor board only */
572                 .type = "tmp175",
573                 .addr = 0x4A,
574                 .irq = IRQ_GPIO(96),
575         }, { /* IMB400 Multimedia board */
576                 .type = "wm8940",
577                 .addr = 0x1A,
578         },
579 };
580
581 static unsigned long imote2_pin_config[] __initdata = {
582
583         /* Button */
584         GPIO91_GPIO,
585
586         /* LEDS */
587         GPIO103_GPIO, /* red led */
588         GPIO104_GPIO, /* green led */
589         GPIO105_GPIO, /* blue led */
590 };
591
592 static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
593         .udc_command            = sg2_udc_command,
594 };
595
596 static struct platform_device *imote2_devices[] = {
597         &stargate2_flash_device,
598         &imote2_leds,
599         &sht15,
600 };
601
602 static void __init imote2_init(void)
603 {
604         pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));
605
606         imote2_stargate2_init();
607
608         platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
609
610         i2c_register_board_info(0, imote2_i2c_board_info,
611                                 ARRAY_SIZE(imote2_i2c_board_info));
612         i2c_register_board_info(1, imote2_pwr_i2c_board_info,
613                                 ARRAY_SIZE(imote2_pwr_i2c_board_info));
614
615         pxa_set_mci_info(&imote2_mci_platform_data);
616         pxa_set_udc_info(&imote2_udc_info);
617 }
618 #endif
619
620 #ifdef CONFIG_MACH_STARGATE2
621
622 static unsigned long stargate2_pin_config[] __initdata = {
623
624         GPIO15_nCS_1, /* SRAM */
625         /* SMC91x */
626         GPIO80_nCS_4,
627         GPIO40_GPIO, /*cable detect?*/
628
629         /* Button */
630         GPIO91_GPIO | WAKEUP_ON_LEVEL_HIGH,
631
632         /* Compact Flash */
633         GPIO79_PSKTSEL,
634         GPIO48_nPOE,
635         GPIO49_nPWE,
636         GPIO50_nPIOR,
637         GPIO51_nPIOW,
638         GPIO85_nPCE_1,
639         GPIO54_nPCE_2,
640         GPIO55_nPREG,
641         GPIO56_nPWAIT,
642         GPIO57_nIOIS16,
643         GPIO120_GPIO, /* Buff ctrl */
644         GPIO108_GPIO, /* Power ctrl */
645         GPIO82_GPIO, /* Reset */
646         GPIO53_GPIO, /* SG2_S0_GPIO_DETECT */
647
648         /* MMC not shared with imote2 */
649         GPIO90_GPIO, /* nSD detect */
650         GPIO89_GPIO, /* SD_POWER_ENABLE */
651
652         /* Bluetooth */
653         GPIO81_GPIO, /* reset */
654 };
655
656 static struct resource smc91x_resources[] = {
657         [0] = {
658                 .name = "smc91x-regs",
659                 .start = (PXA_CS4_PHYS + 0x300),
660                 .end = (PXA_CS4_PHYS + 0xfffff),
661                 .flags = IORESOURCE_MEM,
662         },
663         [1] = {
664                 .start = IRQ_GPIO(40),
665                 .end = IRQ_GPIO(40),
666                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
667         }
668 };
669
670 static struct smc91x_platdata stargate2_smc91x_info = {
671         .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT
672         | SMC91X_NOWAIT | SMC91X_USE_DMA,
673 };
674
675 static struct platform_device smc91x_device = {
676         .name = "smc91x",
677         .id = -1,
678         .num_resources = ARRAY_SIZE(smc91x_resources),
679         .resource = smc91x_resources,
680         .dev = {
681                 .platform_data = &stargate2_smc91x_info,
682         },
683 };
684
685
686 /*
687  * The card detect interrupt isn't debounced so we delay it by 250ms
688  * to give the card a chance to fully insert / eject.
689  */
690 static int stargate2_mci_init(struct device *dev,
691                               irq_handler_t stargate2_detect_int,
692                               void *data)
693 {
694         int err;
695
696         err = gpio_request(SG2_SD_POWER_ENABLE, "SG2_sd_power_enable");
697         if (err) {
698                 printk(KERN_ERR "Can't get the gpio for SD power control");
699                 goto return_err;
700         }
701         gpio_direction_output(SG2_SD_POWER_ENABLE, 0);
702
703         err = gpio_request(SG2_GPIO_nSD_DETECT, "SG2_sd_detect");
704         if (err) {
705                 printk(KERN_ERR "Can't get the sd detect gpio");
706                 goto free_power_en;
707         }
708         gpio_direction_input(SG2_GPIO_nSD_DETECT);
709
710         err = request_irq(IRQ_GPIO(SG2_GPIO_nSD_DETECT),
711                           stargate2_detect_int,
712                           IRQ_TYPE_EDGE_BOTH,
713                           "MMC card detect",
714                           data);
715         if (err) {
716                 printk(KERN_ERR "can't request MMC card detect IRQ\n");
717                 goto free_nsd_detect;
718         }
719         return 0;
720
721  free_nsd_detect:
722         gpio_free(SG2_GPIO_nSD_DETECT);
723  free_power_en:
724         gpio_free(SG2_SD_POWER_ENABLE);
725  return_err:
726         return err;
727 }
728
729 /**
730  * stargate2_mci_setpower() - set state of mmc power supply
731  *
732  * Very simple control. Either it is on or off and is controlled by
733  * a gpio pin */
734 static void stargate2_mci_setpower(struct device *dev, unsigned int vdd)
735 {
736         gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd);
737 }
738
739 static void stargate2_mci_exit(struct device *dev, void *data)
740 {
741         free_irq(IRQ_GPIO(SG2_GPIO_nSD_DETECT), data);
742         gpio_free(SG2_SD_POWER_ENABLE);
743         gpio_free(SG2_GPIO_nSD_DETECT);
744 }
745
746 static struct pxamci_platform_data stargate2_mci_platform_data = {
747         .detect_delay_ms = 250,
748         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
749         .init = stargate2_mci_init,
750         .setpower = stargate2_mci_setpower,
751         .exit = stargate2_mci_exit,
752 };
753
754
755 /*
756  * SRAM - The Stargate 2 has 32MB of SRAM.
757  *
758  * Here it is made available as an MTD. This will then
759  * typically have a cifs filesystem created on it to provide
760  * fast temporary storage.
761  */
762 static struct resource sram_resources = {
763         .start = PXA_CS1_PHYS,
764         .end = PXA_CS1_PHYS + SZ_32M-1,
765         .flags = IORESOURCE_MEM,
766 };
767
768 static struct platdata_mtd_ram stargate2_sram_pdata = {
769         .mapname = "Stargate2 SRAM",
770         .bankwidth = 2,
771 };
772
773 static struct platform_device stargate2_sram = {
774         .name = "mtd-ram",
775         .id = 0,
776         .resource = &sram_resources,
777         .num_resources = 1,
778         .dev = {
779                 .platform_data = &stargate2_sram_pdata,
780         },
781 };
782
783 static struct pcf857x_platform_data platform_data_pcf857x = {
784         .gpio_base = 128,
785         .n_latch = 0,
786         .setup = NULL,
787         .teardown = NULL,
788         .context = NULL,
789 };
790
791 static struct at24_platform_data pca9500_eeprom_pdata = {
792         .byte_len = 256,
793         .page_size = 4,
794 };
795
796 /**
797  * stargate2_reset_bluetooth() reset the bluecore to ensure consistent state
798  **/
799 static int stargate2_reset_bluetooth(void)
800 {
801         int err;
802         err = gpio_request(SG2_BT_RESET, "SG2_BT_RESET");
803         if (err) {
804                 printk(KERN_ERR "Could not get gpio for bluetooth reset\n");
805                 return err;
806         }
807         gpio_direction_output(SG2_BT_RESET, 1);
808         mdelay(5);
809         /* now reset it - 5 msec minimum */
810         gpio_set_value(SG2_BT_RESET, 0);
811         mdelay(10);
812         gpio_set_value(SG2_BT_RESET, 1);
813         gpio_free(SG2_BT_RESET);
814         return 0;
815 }
816
817 static struct led_info stargate2_leds[] = {
818         {
819                 .name = "sg2:red",
820                 .flags = DA9030_LED_RATE_ON,
821         }, {
822                 .name = "sg2:blue",
823                 .flags = DA9030_LED_RATE_ON,
824         }, {
825                 .name = "sg2:green",
826                 .flags = DA9030_LED_RATE_ON,
827         },
828 };
829
830 static struct da903x_subdev_info stargate2_da9030_subdevs[] = {
831         {
832                 .name = "da903x-led",
833                 .id = DA9030_ID_LED_2,
834                 .platform_data = &stargate2_leds[0],
835         }, {
836                 .name = "da903x-led",
837                 .id = DA9030_ID_LED_3,
838                 .platform_data = &stargate2_leds[2],
839         }, {
840                 .name = "da903x-led",
841                 .id = DA9030_ID_LED_4,
842                 .platform_data = &stargate2_leds[1],
843         }, {
844                 .name = "da903x-regulator",
845                 .id = DA9030_ID_LDO2,
846                 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
847         }, {
848                 .name = "da903x-regulator",
849                 .id = DA9030_ID_LDO3,
850                 .platform_data = &stargate2_ldo_init_data[vcc_bb],
851         }, {
852                 .name = "da903x-regulator",
853                 .id = DA9030_ID_LDO4,
854                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
855         }, {
856                 .name = "da903x-regulator",
857                 .id = DA9030_ID_LDO5,
858                 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
859         }, {
860                 .name = "da903x-regulator",
861                 .id = DA9030_ID_LDO6,
862                 .platform_data = &stargate2_ldo_init_data[vcc_vref],
863         }, {
864                 .name = "da903x-regulator",
865                 .id = DA9030_ID_LDO7,
866                 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
867         }, {
868                 .name = "da903x-regulator",
869                 .id = DA9030_ID_LDO8,
870                 .platform_data = &stargate2_ldo_init_data[vcc_mica],
871         }, {
872                 .name = "da903x-regulator",
873                 .id = DA9030_ID_LDO9,
874                 .platform_data = &stargate2_ldo_init_data[vcc_bt],
875         }, {
876                 .name = "da903x-regulator",
877                 .id = DA9030_ID_LDO10,
878                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
879         }, {
880                 .name = "da903x-regulator",
881                 .id = DA9030_ID_LDO11,
882                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
883         }, {
884                 .name = "da903x-regulator",
885                 .id = DA9030_ID_LDO12,
886                 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
887         }, {
888                 .name = "da903x-regulator",
889                 .id = DA9030_ID_LDO15,
890                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
891         }, {
892                 .name = "da903x-regulator",
893                 .id = DA9030_ID_LDO17,
894                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
895         }, {
896                 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
897                 .id = DA9030_ID_LDO18,
898                 .platform_data = &stargate2_ldo_init_data[vcc_io],
899         }, {
900                 .name = "da903x-regulator",
901                 .id = DA9030_ID_LDO19,
902                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
903         },
904 };
905
906 static struct da903x_platform_data stargate2_da9030_pdata = {
907         .num_subdevs = ARRAY_SIZE(stargate2_da9030_subdevs),
908         .subdevs = stargate2_da9030_subdevs,
909 };
910
911 static struct i2c_board_info __initdata stargate2_pwr_i2c_board_info[] = {
912         {
913                 .type = "da9030",
914                 .addr = 0x49,
915                 .platform_data = &stargate2_da9030_pdata,
916                 .irq = gpio_to_irq(1),
917         },
918 };
919
920 static struct i2c_board_info __initdata stargate2_i2c_board_info[] = {
921         /* Techically this a pca9500 - but it's compatible with the 8574
922          * for gpio expansion and the 24c02 for eeprom access.
923          */
924         {
925                 .type = "pcf8574",
926                 .addr =  0x27,
927                 .platform_data = &platform_data_pcf857x,
928         }, {
929                 .type = "24c02",
930                 .addr = 0x57,
931                 .platform_data = &pca9500_eeprom_pdata,
932         }, {
933                 .type = "max1238",
934                 .addr = 0x35,
935         }, { /* ITS400 Sensor board only */
936                 .type = "max1363",
937                 .addr = 0x34,
938                 /* Through a nand gate - Also beware, on V2 sensor board the
939                  * pull up resistors are missing.
940                  */
941                 .irq = IRQ_GPIO(99),
942         }, { /* ITS400 Sensor board only */
943                 .type = "tsl2561",
944                 .addr = 0x49,
945                 /* Through a nand gate - Also beware, on V2 sensor board the
946                  * pull up resistors are missing.
947                  */
948                 .irq = IRQ_GPIO(99),
949         }, { /* ITS400 Sensor board only */
950                 .type = "tmp175",
951                 .addr = 0x4A,
952                 .irq = IRQ_GPIO(96),
953         },
954 };
955
956 /* Board doesn't support cable detection - so always lie and say
957  * something is there.
958  */
959 static int sg2_udc_detect(void)
960 {
961         return 1;
962 }
963
964 static struct pxa2xx_udc_mach_info stargate2_udc_info __initdata = {
965         .udc_is_connected       = sg2_udc_detect,
966         .udc_command            = sg2_udc_command,
967 };
968
969 static struct platform_device *stargate2_devices[] = {
970         &stargate2_flash_device,
971         &stargate2_sram,
972         &smc91x_device,
973         &sht15,
974 };
975
976 static void __init stargate2_init(void)
977 {
978         /* This is probably a board specific hack as this must be set
979            prior to connecting the MFP stuff up. */
980         __raw_writel(__raw_readl(MECR) & ~MECR_NOS, MECR);
981
982         pxa2xx_mfp_config(ARRAY_AND_SIZE(stargate2_pin_config));
983
984         imote2_stargate2_init();
985
986         platform_add_devices(ARRAY_AND_SIZE(stargate2_devices));
987
988         i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info));
989         i2c_register_board_info(1, stargate2_pwr_i2c_board_info,
990                                 ARRAY_SIZE(stargate2_pwr_i2c_board_info));
991
992         pxa_set_mci_info(&stargate2_mci_platform_data);
993
994         pxa_set_udc_info(&stargate2_udc_info);
995
996         stargate2_reset_bluetooth();
997 }
998 #endif
999
1000 #ifdef CONFIG_MACH_INTELMOTE2
1001 MACHINE_START(INTELMOTE2, "IMOTE 2")
1002         .map_io         = pxa27x_map_io,
1003         .init_irq       = pxa27x_init_irq,
1004         .timer          = &pxa_timer,
1005         .init_machine   = imote2_init,
1006         .boot_params    = 0xA0000100,
1007 MACHINE_END
1008 #endif
1009
1010 #ifdef CONFIG_MACH_STARGATE2
1011 MACHINE_START(STARGATE2, "Stargate 2")
1012         .map_io = pxa27x_map_io,
1013         .nr_irqs = STARGATE_NR_IRQS,
1014         .init_irq = pxa27x_init_irq,
1015         .timer = &pxa_timer,
1016         .init_machine = stargate2_init,
1017         .boot_params = 0xA0000100,
1018 MACHINE_END
1019 #endif