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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/stargate2.c

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  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/platform_data/i2c-pxa.h>
 29 #include <linux/platform_data/pcf857x.h>
 30 #include <linux/platform_data/at24.h>
 31 #include <linux/smc91x.h>
 32 #include <linux/gpio/machine.h>
 33 #include <linux/gpio.h>
 34 #include <linux/leds.h>
 35 
 36 #include <asm/types.h>
 37 #include <asm/setup.h>
 38 #include <asm/memory.h>
 39 #include <asm/mach-types.h>
 40 #include <asm/irq.h>
 41 
 42 #include <asm/mach/arch.h>
 43 #include <asm/mach/map.h>
 44 #include <asm/mach/irq.h>
 45 #include <asm/mach/flash.h>
 46 
 47 #include "pxa27x.h"
 48 #include <linux/platform_data/mmc-pxamci.h>
 49 #include "udc.h"
 50 #include "pxa27x-udc.h"
 51 #include <mach/smemc.h>
 52 
 53 #include <linux/spi/spi.h>
 54 #include <linux/spi/pxa2xx_spi.h>
 55 #include <linux/mfd/da903x.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 gpiod_lookup_table sht15_gpiod_table = {
141         .dev_id = "sht15",
142         .table = {
143                 /* FIXME: should this have |GPIO_OPEN_DRAIN set? */
144                 GPIO_LOOKUP("gpio-pxa", 100, "data", GPIO_ACTIVE_HIGH),
145                 GPIO_LOOKUP("gpio-pxa", 98, "clk", GPIO_ACTIVE_HIGH),
146         },
147 };
148 
149 static struct platform_device sht15 = {
150         .name = "sht15",
151         .id = -1,
152 };
153 
154 static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
155         REGULATOR_SUPPLY("vcc", "sht15"),
156 };
157 
158 enum stargate2_ldos{
159         vcc_vref,
160         vcc_cc2420,
161         /* a mote connector? */
162         vcc_mica,
163         /* the CSR bluecore chip */
164         vcc_bt,
165         /* The two voltages available to sensor boards */
166         vcc_sensor_1_8,
167         vcc_sensor_3,
168         /* directly connected to the pxa27x */
169         vcc_sram_ext,
170         vcc_pxa_pll,
171         vcc_pxa_usim, /* Reference voltage for certain gpios */
172         vcc_pxa_mem,
173         vcc_pxa_flash,
174         vcc_pxa_core, /*Dc-Dc buck not yet supported */
175         vcc_lcd,
176         vcc_bb,
177         vcc_bbio, /*not sure!*/
178         vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
179 };
180 
181 /* The values of the various regulator constraints are obviously dependent
182  * on exactly what is wired to each ldo.  Unfortunately this information is
183  * not generally available.  More information has been requested from Xbow.
184  */
185 static struct regulator_init_data stargate2_ldo_init_data[] = {
186         [vcc_bbio] = {
187                 .constraints = { /* board default 1.8V */
188                         .name = "vcc_bbio",
189                         .min_uV = 1800000,
190                         .max_uV = 1800000,
191                 },
192         },
193         [vcc_bb] = {
194                 .constraints = { /* board default 2.8V */
195                         .name = "vcc_bb",
196                         .min_uV = 2700000,
197                         .max_uV = 3000000,
198                 },
199         },
200         [vcc_pxa_flash] = {
201                 .constraints = {/* default is 1.8V */
202                         .name = "vcc_pxa_flash",
203                         .min_uV = 1800000,
204                         .max_uV = 1800000,
205                 },
206         },
207         [vcc_cc2420] = { /* also vcc_io */
208                 .constraints = {
209                         /* board default is 2.8V */
210                         .name = "vcc_cc2420",
211                         .min_uV = 2700000,
212                         .max_uV = 3300000,
213                 },
214         },
215         [vcc_vref] = { /* Reference for what? */
216                 .constraints = { /* default 1.8V */
217                         .name = "vcc_vref",
218                         .min_uV = 1800000,
219                         .max_uV = 1800000,
220                 },
221         },
222         [vcc_sram_ext] = {
223                 .constraints = { /* default 2.8V */
224                         .name = "vcc_sram_ext",
225                         .min_uV = 2800000,
226                         .max_uV = 2800000,
227                 },
228         },
229         [vcc_mica] = {
230                 .constraints = { /* default 2.8V */
231                         .name = "vcc_mica",
232                         .min_uV = 2800000,
233                         .max_uV = 2800000,
234                 },
235         },
236         [vcc_bt] = {
237                 .constraints = { /* default 2.8V */
238                         .name = "vcc_bt",
239                         .min_uV = 2800000,
240                         .max_uV = 2800000,
241                 },
242         },
243         [vcc_lcd] = {
244                 .constraints = { /* default 2.8V */
245                         .name = "vcc_lcd",
246                         .min_uV = 2700000,
247                         .max_uV = 3300000,
248                 },
249         },
250         [vcc_io] = { /* Same or higher than everything
251                           * bar vccbat and vccusb */
252                 .constraints = { /* default 2.8V */
253                         .name = "vcc_io",
254                         .min_uV = 2692000,
255                         .max_uV = 3300000,
256                 },
257         },
258         [vcc_sensor_1_8] = {
259                 .constraints = { /* default 1.8V */
260                         .name = "vcc_sensor_1_8",
261                         .min_uV = 1800000,
262                         .max_uV = 1800000,
263                 },
264         },
265         [vcc_sensor_3] = { /* curiously default 2.8V */
266                 .constraints = {
267                         .name = "vcc_sensor_3",
268                         .min_uV = 2800000,
269                         .max_uV = 3000000,
270                 },
271                 .num_consumer_supplies = ARRAY_SIZE(stargate2_sensor_3_con),
272                 .consumer_supplies = stargate2_sensor_3_con,
273         },
274         [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/
275                 .constraints = {
276                         .name = "vcc_pxa_pll",
277                         .min_uV = 1170000,
278                         .max_uV = 1430000,
279                 },
280         },
281         [vcc_pxa_usim] = {
282                 .constraints = { /* default 1.8V */
283                         .name = "vcc_pxa_usim",
284                         .min_uV = 1710000,
285                         .max_uV = 2160000,
286                 },
287         },
288         [vcc_pxa_mem] = {
289                 .constraints = { /* default 1.8V */
290                         .name = "vcc_pxa_mem",
291                         .min_uV = 1800000,
292                         .max_uV = 1800000,
293                 },
294         },
295 };
296 
297 static struct mtd_partition stargate2flash_partitions[] = {
298         {
299                 .name = "Bootloader",
300                 .size = 0x00040000,
301                 .offset = 0,
302                 .mask_flags = 0,
303         }, {
304                 .name = "Kernel",
305                 .size = 0x00200000,
306                 .offset = 0x00040000,
307                 .mask_flags = 0
308         }, {
309                 .name = "Filesystem",
310                 .size = 0x01DC0000,
311                 .offset = 0x00240000,
312                 .mask_flags = 0
313         },
314 };
315 
316 static struct resource flash_resources = {
317         .start = PXA_CS0_PHYS,
318         .end = PXA_CS0_PHYS + SZ_32M - 1,
319         .flags = IORESOURCE_MEM,
320 };
321 
322 static struct flash_platform_data stargate2_flash_data = {
323         .map_name = "cfi_probe",
324         .parts = stargate2flash_partitions,
325         .nr_parts = ARRAY_SIZE(stargate2flash_partitions),
326         .name = "PXA27xOnChipROM",
327         .width = 2,
328 };
329 
330 static struct platform_device stargate2_flash_device = {
331         .name = "pxa2xx-flash",
332         .id = 0,
333         .dev = {
334                 .platform_data = &stargate2_flash_data,
335         },
336         .resource = &flash_resources,
337         .num_resources = 1,
338 };
339 
340 static struct pxa2xx_spi_master pxa_ssp_master_0_info = {
341         .num_chipselect = 1,
342 };
343 
344 static struct pxa2xx_spi_master pxa_ssp_master_1_info = {
345         .num_chipselect = 1,
346 };
347 
348 static struct pxa2xx_spi_master pxa_ssp_master_2_info = {
349         .num_chipselect = 1,
350 };
351 
352 /* An upcoming kernel change will scrap SFRM usage so these
353  * drivers have been moved to use gpio's via cs_control */
354 static struct pxa2xx_spi_chip staccel_chip_info = {
355         .tx_threshold = 8,
356         .rx_threshold = 8,
357         .dma_burst_size = 8,
358         .timeout = 235,
359         .gpio_cs = 24,
360 };
361 
362 static struct pxa2xx_spi_chip cc2420_info = {
363         .tx_threshold = 8,
364         .rx_threshold = 8,
365         .dma_burst_size = 8,
366         .timeout = 235,
367         .gpio_cs = 39,
368 };
369 
370 static struct spi_board_info spi_board_info[] __initdata = {
371         {
372                 .modalias = "lis3l02dq",
373                 .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
374                 .bus_num = 1,
375                 .chip_select = 0,
376                 .controller_data = &staccel_chip_info,
377                 .irq = PXA_GPIO_TO_IRQ(96),
378         }, {
379                 .modalias = "cc2420",
380                 .max_speed_hz = 6500000,
381                 .bus_num = 3,
382                 .chip_select = 0,
383                 .controller_data = &cc2420_info,
384         },
385 };
386 
387 static void sg2_udc_command(int cmd)
388 {
389         switch (cmd) {
390         case PXA2XX_UDC_CMD_CONNECT:
391                 UP2OCR |=  UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE;
392                 break;
393         case PXA2XX_UDC_CMD_DISCONNECT:
394                 UP2OCR &= ~(UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE);
395                 break;
396         }
397 }
398 
399 static struct i2c_pxa_platform_data i2c_pwr_pdata = {
400         .fast_mode = 1,
401 };
402 
403 static struct i2c_pxa_platform_data i2c_pdata = {
404         .fast_mode = 1,
405 };
406 
407 static void __init imote2_stargate2_init(void)
408 {
409 
410         pxa2xx_mfp_config(ARRAY_AND_SIZE(sg2_im2_unified_pin_config));
411 
412         pxa_set_ffuart_info(NULL);
413         pxa_set_btuart_info(NULL);
414         pxa_set_stuart_info(NULL);
415 
416         pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
417         pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
418         pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
419         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
420 
421 
422         pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
423         pxa_set_i2c_info(&i2c_pdata);
424 }
425 
426 #ifdef CONFIG_MACH_INTELMOTE2
427 /* As the the imote2 doesn't currently have a conventional SD slot
428  * there is no option to hotplug cards, making all this rather simple
429  */
430 static int imote2_mci_get_ro(struct device *dev)
431 {
432         return 0;
433 }
434 
435 /* Rather simple case as hotplugging not possible */
436 static struct pxamci_platform_data imote2_mci_platform_data = {
437         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */
438         .get_ro = imote2_mci_get_ro,
439         .gpio_card_detect = -1,
440         .gpio_card_ro   = -1,
441         .gpio_power = -1,
442 };
443 
444 static struct gpio_led imote2_led_pins[] = {
445         {
446                 .name       =  "imote2:red",
447                 .gpio       = 103,
448                 .active_low = 1,
449         }, {
450                 .name       = "imote2:green",
451                 .gpio       = 104,
452                 .active_low = 1,
453         }, {
454                 .name       = "imote2:blue",
455                 .gpio       = 105,
456                 .active_low = 1,
457         },
458 };
459 
460 static struct gpio_led_platform_data imote2_led_data = {
461         .num_leds = ARRAY_SIZE(imote2_led_pins),
462         .leds     = imote2_led_pins,
463 };
464 
465 static struct platform_device imote2_leds = {
466         .name = "leds-gpio",
467         .id   = -1,
468         .dev = {
469                 .platform_data = &imote2_led_data,
470         },
471 };
472 
473 static struct da903x_subdev_info imote2_da9030_subdevs[] = {
474         {
475                 .name = "da903x-regulator",
476                 .id = DA9030_ID_LDO2,
477                 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
478         }, {
479                 .name = "da903x-regulator",
480                 .id = DA9030_ID_LDO3,
481                 .platform_data = &stargate2_ldo_init_data[vcc_bb],
482         }, {
483                 .name = "da903x-regulator",
484                 .id = DA9030_ID_LDO4,
485                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
486         }, {
487                 .name = "da903x-regulator",
488                 .id = DA9030_ID_LDO5,
489                 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
490         }, {
491                 .name = "da903x-regulator",
492                 .id = DA9030_ID_LDO6,
493                 .platform_data = &stargate2_ldo_init_data[vcc_vref],
494         }, {
495                 .name = "da903x-regulator",
496                 .id = DA9030_ID_LDO7,
497                 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
498         }, {
499                 .name = "da903x-regulator",
500                 .id = DA9030_ID_LDO8,
501                 .platform_data = &stargate2_ldo_init_data[vcc_mica],
502         }, {
503                 .name = "da903x-regulator",
504                 .id = DA9030_ID_LDO9,
505                 .platform_data = &stargate2_ldo_init_data[vcc_bt],
506         }, {
507                 .name = "da903x-regulator",
508                 .id = DA9030_ID_LDO10,
509                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
510         }, {
511                 .name = "da903x-regulator",
512                 .id = DA9030_ID_LDO11,
513                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
514         }, {
515                 .name = "da903x-regulator",
516                 .id = DA9030_ID_LDO12,
517                 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
518         }, {
519                 .name = "da903x-regulator",
520                 .id = DA9030_ID_LDO15,
521                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
522         }, {
523                 .name = "da903x-regulator",
524                 .id = DA9030_ID_LDO17,
525                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
526         }, {
527                 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
528                 .id = DA9030_ID_LDO18,
529                 .platform_data = &stargate2_ldo_init_data[vcc_io],
530         }, {
531                 .name = "da903x-regulator",
532                 .id = DA9030_ID_LDO19,
533                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
534         },
535 };
536 
537 static struct da903x_platform_data imote2_da9030_pdata = {
538         .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs),
539         .subdevs = imote2_da9030_subdevs,
540 };
541 
542 static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
543         {
544                 .type = "da9030",
545                 .addr = 0x49,
546                 .platform_data = &imote2_da9030_pdata,
547                 .irq = PXA_GPIO_TO_IRQ(1),
548         },
549 };
550 
551 static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
552         { /* UCAM sensor board */
553                 .type = "max1239",
554                 .addr = 0x35,
555         }, { /* ITS400 Sensor board only */
556                 .type = "max1363",
557                 .addr = 0x34,
558                 /* Through a nand gate - Also beware, on V2 sensor board the
559                  * pull up resistors are missing.
560                  */
561                 .irq = PXA_GPIO_TO_IRQ(99),
562         }, { /* ITS400 Sensor board only */
563                 .type = "tsl2561",
564                 .addr = 0x49,
565                 /* Through a nand gate - Also beware, on V2 sensor board the
566                  * pull up resistors are missing.
567                  */
568                 .irq = PXA_GPIO_TO_IRQ(99),
569         }, { /* ITS400 Sensor board only */
570                 .type = "tmp175",
571                 .addr = 0x4A,
572                 .irq = PXA_GPIO_TO_IRQ(96),
573         }, { /* IMB400 Multimedia board */
574                 .type = "wm8940",
575                 .addr = 0x1A,
576         },
577 };
578 
579 static unsigned long imote2_pin_config[] __initdata = {
580 
581         /* Button */
582         GPIO91_GPIO,
583 
584         /* LEDS */
585         GPIO103_GPIO, /* red led */
586         GPIO104_GPIO, /* green led */
587         GPIO105_GPIO, /* blue led */
588 };
589 
590 static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
591         .udc_command            = sg2_udc_command,
592 };
593 
594 static struct platform_device imote2_audio_device = {
595         .name = "imote2-audio",
596         .id   = -1,
597 };
598 
599 static struct platform_device *imote2_devices[] = {
600         &stargate2_flash_device,
601         &imote2_leds,
602         &sht15,
603         &imote2_audio_device,
604 };
605 
606 static void __init imote2_init(void)
607 {
608         pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));
609 
610         imote2_stargate2_init();
611 
612         gpiod_add_lookup_table(&sht15_gpiod_table);
613         platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
614 
615         i2c_register_board_info(0, imote2_i2c_board_info,
616                                 ARRAY_SIZE(imote2_i2c_board_info));
617         i2c_register_board_info(1, imote2_pwr_i2c_board_info,
618                                 ARRAY_SIZE(imote2_pwr_i2c_board_info));
619 
620         pxa_set_mci_info(&imote2_mci_platform_data);
621         pxa_set_udc_info(&imote2_udc_info);
622 }
623 #endif
624 
625 #ifdef CONFIG_MACH_STARGATE2
626 
627 static unsigned long stargate2_pin_config[] __initdata = {
628 
629         GPIO15_nCS_1, /* SRAM */
630         /* SMC91x */
631         GPIO80_nCS_4,
632         GPIO40_GPIO, /*cable detect?*/
633 
634         /* Button */
635         GPIO91_GPIO | WAKEUP_ON_LEVEL_HIGH,
636 
637         /* Compact Flash */
638         GPIO79_PSKTSEL,
639         GPIO48_nPOE,
640         GPIO49_nPWE,
641         GPIO50_nPIOR,
642         GPIO51_nPIOW,
643         GPIO85_nPCE_1,
644         GPIO54_nPCE_2,
645         GPIO55_nPREG,
646         GPIO56_nPWAIT,
647         GPIO57_nIOIS16,
648         GPIO120_GPIO, /* Buff ctrl */
649         GPIO108_GPIO, /* Power ctrl */
650         GPIO82_GPIO, /* Reset */
651         GPIO53_GPIO, /* SG2_S0_GPIO_DETECT */
652 
653         /* MMC not shared with imote2 */
654         GPIO90_GPIO, /* nSD detect */
655         GPIO89_GPIO, /* SD_POWER_ENABLE */
656 
657         /* Bluetooth */
658         GPIO81_GPIO, /* reset */
659 };
660 
661 static struct resource smc91x_resources[] = {
662         [0] = {
663                 .name = "smc91x-regs",
664                 .start = (PXA_CS4_PHYS + 0x300),
665                 .end = (PXA_CS4_PHYS + 0xfffff),
666                 .flags = IORESOURCE_MEM,
667         },
668         [1] = {
669                 .start = PXA_GPIO_TO_IRQ(40),
670                 .end = PXA_GPIO_TO_IRQ(40),
671                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
672         }
673 };
674 
675 static struct smc91x_platdata stargate2_smc91x_info = {
676         .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT
677         | SMC91X_NOWAIT | SMC91X_USE_DMA,
678         .pxa_u16_align4 = true,
679 };
680 
681 static struct platform_device smc91x_device = {
682         .name = "smc91x",
683         .id = -1,
684         .num_resources = ARRAY_SIZE(smc91x_resources),
685         .resource = smc91x_resources,
686         .dev = {
687                 .platform_data = &stargate2_smc91x_info,
688         },
689 };
690 
691 
692 /*
693  * The card detect interrupt isn't debounced so we delay it by 250ms
694  * to give the card a chance to fully insert / eject.
695  */
696 static int stargate2_mci_init(struct device *dev,
697                               irq_handler_t stargate2_detect_int,
698                               void *data)
699 {
700         int err;
701 
702         err = gpio_request(SG2_SD_POWER_ENABLE, "SG2_sd_power_enable");
703         if (err) {
704                 printk(KERN_ERR "Can't get the gpio for SD power control");
705                 goto return_err;
706         }
707         gpio_direction_output(SG2_SD_POWER_ENABLE, 0);
708 
709         err = gpio_request(SG2_GPIO_nSD_DETECT, "SG2_sd_detect");
710         if (err) {
711                 printk(KERN_ERR "Can't get the sd detect gpio");
712                 goto free_power_en;
713         }
714         gpio_direction_input(SG2_GPIO_nSD_DETECT);
715 
716         err = request_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT),
717                           stargate2_detect_int,
718                           IRQ_TYPE_EDGE_BOTH,
719                           "MMC card detect",
720                           data);
721         if (err) {
722                 printk(KERN_ERR "can't request MMC card detect IRQ\n");
723                 goto free_nsd_detect;
724         }
725         return 0;
726 
727  free_nsd_detect:
728         gpio_free(SG2_GPIO_nSD_DETECT);
729  free_power_en:
730         gpio_free(SG2_SD_POWER_ENABLE);
731  return_err:
732         return err;
733 }
734 
735 /**
736  * stargate2_mci_setpower() - set state of mmc power supply
737  *
738  * Very simple control. Either it is on or off and is controlled by
739  * a gpio pin */
740 static int stargate2_mci_setpower(struct device *dev, unsigned int vdd)
741 {
742         gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd);
743         return 0;
744 }
745 
746 static void stargate2_mci_exit(struct device *dev, void *data)
747 {
748         free_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT), data);
749         gpio_free(SG2_SD_POWER_ENABLE);
750         gpio_free(SG2_GPIO_nSD_DETECT);
751 }
752 
753 static struct pxamci_platform_data stargate2_mci_platform_data = {
754         .detect_delay_ms = 250,
755         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
756         .init = stargate2_mci_init,
757         .setpower = stargate2_mci_setpower,
758         .exit = stargate2_mci_exit,
759 };
760 
761 
762 /*
763  * SRAM - The Stargate 2 has 32MB of SRAM.
764  *
765  * Here it is made available as an MTD. This will then
766  * typically have a cifs filesystem created on it to provide
767  * fast temporary storage.
768  */
769 static struct resource sram_resources = {
770         .start = PXA_CS1_PHYS,
771         .end = PXA_CS1_PHYS + SZ_32M-1,
772         .flags = IORESOURCE_MEM,
773 };
774 
775 static struct platdata_mtd_ram stargate2_sram_pdata = {
776         .mapname = "Stargate2 SRAM",
777         .bankwidth = 2,
778 };
779 
780 static struct platform_device stargate2_sram = {
781         .name = "mtd-ram",
782         .id = 0,
783         .resource = &sram_resources,
784         .num_resources = 1,
785         .dev = {
786                 .platform_data = &stargate2_sram_pdata,
787         },
788 };
789 
790 static struct pcf857x_platform_data platform_data_pcf857x = {
791         .gpio_base = 128,
792         .n_latch = 0,
793         .setup = NULL,
794         .teardown = NULL,
795         .context = NULL,
796 };
797 
798 static struct at24_platform_data pca9500_eeprom_pdata = {
799         .byte_len = 256,
800         .page_size = 4,
801 };
802 
803 /**
804  * stargate2_reset_bluetooth() reset the bluecore to ensure consistent state
805  **/
806 static int stargate2_reset_bluetooth(void)
807 {
808         int err;
809         err = gpio_request(SG2_BT_RESET, "SG2_BT_RESET");
810         if (err) {
811                 printk(KERN_ERR "Could not get gpio for bluetooth reset\n");
812                 return err;
813         }
814         gpio_direction_output(SG2_BT_RESET, 1);
815         mdelay(5);
816         /* now reset it - 5 msec minimum */
817         gpio_set_value(SG2_BT_RESET, 0);
818         mdelay(10);
819         gpio_set_value(SG2_BT_RESET, 1);
820         gpio_free(SG2_BT_RESET);
821         return 0;
822 }
823 
824 static struct led_info stargate2_leds[] = {
825         {
826                 .name = "sg2:red",
827                 .flags = DA9030_LED_RATE_ON,
828         }, {
829                 .name = "sg2:blue",
830                 .flags = DA9030_LED_RATE_ON,
831         }, {
832                 .name = "sg2:green",
833                 .flags = DA9030_LED_RATE_ON,
834         },
835 };
836 
837 static struct da903x_subdev_info stargate2_da9030_subdevs[] = {
838         {
839                 .name = "da903x-led",
840                 .id = DA9030_ID_LED_2,
841                 .platform_data = &stargate2_leds[0],
842         }, {
843                 .name = "da903x-led",
844                 .id = DA9030_ID_LED_3,
845                 .platform_data = &stargate2_leds[2],
846         }, {
847                 .name = "da903x-led",
848                 .id = DA9030_ID_LED_4,
849                 .platform_data = &stargate2_leds[1],
850         }, {
851                 .name = "da903x-regulator",
852                 .id = DA9030_ID_LDO2,
853                 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
854         }, {
855                 .name = "da903x-regulator",
856                 .id = DA9030_ID_LDO3,
857                 .platform_data = &stargate2_ldo_init_data[vcc_bb],
858         }, {
859                 .name = "da903x-regulator",
860                 .id = DA9030_ID_LDO4,
861                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
862         }, {
863                 .name = "da903x-regulator",
864                 .id = DA9030_ID_LDO5,
865                 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
866         }, {
867                 .name = "da903x-regulator",
868                 .id = DA9030_ID_LDO6,
869                 .platform_data = &stargate2_ldo_init_data[vcc_vref],
870         }, {
871                 .name = "da903x-regulator",
872                 .id = DA9030_ID_LDO7,
873                 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
874         }, {
875                 .name = "da903x-regulator",
876                 .id = DA9030_ID_LDO8,
877                 .platform_data = &stargate2_ldo_init_data[vcc_mica],
878         }, {
879                 .name = "da903x-regulator",
880                 .id = DA9030_ID_LDO9,
881                 .platform_data = &stargate2_ldo_init_data[vcc_bt],
882         }, {
883                 .name = "da903x-regulator",
884                 .id = DA9030_ID_LDO10,
885                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
886         }, {
887                 .name = "da903x-regulator",
888                 .id = DA9030_ID_LDO11,
889                 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
890         }, {
891                 .name = "da903x-regulator",
892                 .id = DA9030_ID_LDO12,
893                 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
894         }, {
895                 .name = "da903x-regulator",
896                 .id = DA9030_ID_LDO15,
897                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
898         }, {
899                 .name = "da903x-regulator",
900                 .id = DA9030_ID_LDO17,
901                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
902         }, {
903                 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
904                 .id = DA9030_ID_LDO18,
905                 .platform_data = &stargate2_ldo_init_data[vcc_io],
906         }, {
907                 .name = "da903x-regulator",
908                 .id = DA9030_ID_LDO19,
909                 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
910         },
911 };
912 
913 static struct da903x_platform_data stargate2_da9030_pdata = {
914         .num_subdevs = ARRAY_SIZE(stargate2_da9030_subdevs),
915         .subdevs = stargate2_da9030_subdevs,
916 };
917 
918 static struct i2c_board_info __initdata stargate2_pwr_i2c_board_info[] = {
919         {
920                 .type = "da9030",
921                 .addr = 0x49,
922                 .platform_data = &stargate2_da9030_pdata,
923                 .irq = PXA_GPIO_TO_IRQ(1),
924         },
925 };
926 
927 static struct i2c_board_info __initdata stargate2_i2c_board_info[] = {
928         /* Techically this a pca9500 - but it's compatible with the 8574
929          * for gpio expansion and the 24c02 for eeprom access.
930          */
931         {
932                 .type = "pcf8574",
933                 .addr =  0x27,
934                 .platform_data = &platform_data_pcf857x,
935         }, {
936                 .type = "24c02",
937                 .addr = 0x57,
938                 .platform_data = &pca9500_eeprom_pdata,
939         }, {
940                 .type = "max1238",
941                 .addr = 0x35,
942         }, { /* ITS400 Sensor board only */
943                 .type = "max1363",
944                 .addr = 0x34,
945                 /* Through a nand gate - Also beware, on V2 sensor board the
946                  * pull up resistors are missing.
947                  */
948                 .irq = PXA_GPIO_TO_IRQ(99),
949         }, { /* ITS400 Sensor board only */
950                 .type = "tsl2561",
951                 .addr = 0x49,
952                 /* Through a nand gate - Also beware, on V2 sensor board the
953                  * pull up resistors are missing.
954                  */
955                 .irq = PXA_GPIO_TO_IRQ(99),
956         }, { /* ITS400 Sensor board only */
957                 .type = "tmp175",
958                 .addr = 0x4A,
959                 .irq = PXA_GPIO_TO_IRQ(96),
960         },
961 };
962 
963 /* Board doesn't support cable detection - so always lie and say
964  * something is there.
965  */
966 static int sg2_udc_detect(void)
967 {
968         return 1;
969 }
970 
971 static struct pxa2xx_udc_mach_info stargate2_udc_info __initdata = {
972         .udc_is_connected       = sg2_udc_detect,
973         .udc_command            = sg2_udc_command,
974 };
975 
976 static struct platform_device *stargate2_devices[] = {
977         &stargate2_flash_device,
978         &stargate2_sram,
979         &smc91x_device,
980         &sht15,
981 };
982 
983 static void __init stargate2_init(void)
984 {
985         /* This is probably a board specific hack as this must be set
986            prior to connecting the MFP stuff up. */
987         __raw_writel(__raw_readl(MECR) & ~MECR_NOS, MECR);
988 
989         pxa2xx_mfp_config(ARRAY_AND_SIZE(stargate2_pin_config));
990 
991         imote2_stargate2_init();
992 
993         gpiod_add_lookup_table(&sht15_gpiod_table);
994         platform_add_devices(ARRAY_AND_SIZE(stargate2_devices));
995 
996         i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info));
997         i2c_register_board_info(1, stargate2_pwr_i2c_board_info,
998                                 ARRAY_SIZE(stargate2_pwr_i2c_board_info));
999 
1000         pxa_set_mci_info(&stargate2_mci_platform_data);
1001 
1002         pxa_set_udc_info(&stargate2_udc_info);
1003 
1004         stargate2_reset_bluetooth();
1005 }
1006 #endif
1007 
1008 #ifdef CONFIG_MACH_INTELMOTE2
1009 MACHINE_START(INTELMOTE2, "IMOTE 2")
1010         .map_io         = pxa27x_map_io,
1011         .nr_irqs        = PXA_NR_IRQS,
1012         .init_irq       = pxa27x_init_irq,
1013         .handle_irq     = pxa27x_handle_irq,
1014         .init_time      = pxa_timer_init,
1015         .init_machine   = imote2_init,
1016         .atag_offset    = 0x100,
1017         .restart        = pxa_restart,
1018 MACHINE_END
1019 #endif
1020 
1021 #ifdef CONFIG_MACH_STARGATE2
1022 MACHINE_START(STARGATE2, "Stargate 2")
1023         .map_io = pxa27x_map_io,
1024         .nr_irqs = STARGATE_NR_IRQS,
1025         .init_irq = pxa27x_init_irq,
1026         .handle_irq = pxa27x_handle_irq,
1027         .init_time      = pxa_timer_init,
1028         .init_machine = stargate2_init,
1029         .atag_offset = 0x100,
1030         .restart        = pxa_restart,
1031 MACHINE_END
1032 #endif
1033 

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