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Linux 2.6.31.8
[linux/fpc-iii.git] / arch / arm / mach-pxa / imote2.c
blob961807dc64670781eec4b282ff1fe6b18aea2b22
1 /*
2 * linux/arch/arm/mach-pxa/imote2.c
3 *
4 * Author: Ed C. Epp
5 * Created: Nov 05, 2002
6 * Copyright: Intel Corp.
7 *
8 * Modified 2008: Jonathan Cameron
9 *
10 * The Imote2 is a wireless sensor node platform sold
11 * by Crossbow (www.xbow.com).
12 */
13
14 #include <linux/init.h>
15 #include <linux/device.h>
16 #include <linux/mtd/mtd.h>
17 #include <linux/mtd/partitions.h>
18 #include <linux/platform_device.h>
19 #include <linux/regulator/machine.h>
20 #include <linux/gpio.h>
21 #include <linux/leds.h>
22 #include <linux/spi/spi.h>
23 #include <linux/i2c.h>
24 #include <linux/mfd/da903x.h>
25 #include <linux/sht15.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 #include <asm/mach/flash.h>
31
32 #include <mach/pxa27x.h>
33 #include <plat/i2c.h>
34 #include <mach/udc.h>
35 #include <mach/mmc.h>
36 #include <mach/pxa2xx_spi.h>
37 #include <mach/pxa27x-udc.h>
38
39 #include "devices.h"
40 #include "generic.h"
41
42 static unsigned long imote2_pin_config[] __initdata = {
43
44 /* Device Identification for wakeup*/
45 GPIO102_GPIO,
46
47 /* Button */
48 GPIO91_GPIO,
49
50 /* DA9030 */
51 GPIO1_GPIO,
52
53 /* MMC */
54 GPIO32_MMC_CLK,
55 GPIO112_MMC_CMD,
56 GPIO92_MMC_DAT_0,
57 GPIO109_MMC_DAT_1,
58 GPIO110_MMC_DAT_2,
59 GPIO111_MMC_DAT_3,
60
61 /* 802.15.4 radio - driver out of mainline */
62 GPIO22_GPIO, /* CC_RSTN */
63 GPIO114_GPIO, /* CC_FIFO */
64 GPIO116_GPIO, /* CC_CCA */
65 GPIO0_GPIO, /* CC_FIFOP */
66 GPIO16_GPIO, /* CCSFD */
67 GPIO39_GPIO, /* CSn */
68 GPIO115_GPIO, /* Power enable */
69
70 /* I2C */
71 GPIO117_I2C_SCL,
72 GPIO118_I2C_SDA,
73
74 /* SSP 3 - 802.15.4 radio */
75 GPIO39_GPIO, /* Chip Select */
76 GPIO34_SSP3_SCLK,
77 GPIO35_SSP3_TXD,
78 GPIO41_SSP3_RXD,
79
80 /* SSP 2 - to daughter boards */
81 GPIO37_GPIO, /* Chip Select */
82 GPIO36_SSP2_SCLK,
83 GPIO38_SSP2_TXD,
84 GPIO11_SSP2_RXD,
85
86 /* SSP 1 - to daughter boards */
87 GPIO24_GPIO, /* Chip Select */
88 GPIO23_SSP1_SCLK,
89 GPIO25_SSP1_TXD,
90 GPIO26_SSP1_RXD,
91
92 /* BTUART Basic Connector*/
93 GPIO42_BTUART_RXD,
94 GPIO43_BTUART_TXD,
95 GPIO44_BTUART_CTS,
96 GPIO45_BTUART_RTS,
97
98 /* STUART Serial console via debug board*/
99 GPIO46_STUART_RXD,
100 GPIO47_STUART_TXD,
101
102 /* Basic sensor board */
103 GPIO96_GPIO, /* accelerometer interrupt */
104 GPIO99_GPIO, /* ADC interrupt */
105
106 /* SHT15 */
107 GPIO100_GPIO,
108 GPIO98_GPIO,
109
110 /* Connector pins specified as gpios */
111 GPIO94_GPIO, /* large basic connector pin 14 */
112 GPIO10_GPIO, /* large basic connector pin 23 */
113
114 /* LEDS */
115 GPIO103_GPIO, /* red led */
116 GPIO104_GPIO, /* green led */
117 GPIO105_GPIO, /* blue led */
118 };
119
120 static struct sht15_platform_data platform_data_sht15 = {
121 .gpio_data = 100,
122 .gpio_sck = 98,
123 };
124
125 static struct platform_device sht15 = {
126 .name = "sht15",
127 .id = -1,
128 .dev = {
129 .platform_data = &platform_data_sht15,
130 },
131 };
132
133 static struct regulator_consumer_supply imote2_sensor_3_con[] = {
134 {
135 .dev = &sht15.dev,
136 .supply = "vcc",
137 },
138 };
139
140 static struct gpio_led imote2_led_pins[] = {
141 {
142 .name = "imote2:red",
143 .gpio = 103,
144 .active_low = 1,
145 }, {
146 .name = "imote2:green",
147 .gpio = 104,
148 .active_low = 1,
149 }, {
150 .name = "imote2:blue",
151 .gpio = 105,
152 .active_low = 1,
153 },
154 };
155
156 static struct gpio_led_platform_data imote2_led_data = {
157 .num_leds = ARRAY_SIZE(imote2_led_pins),
158 .leds = imote2_led_pins,
159 };
160
161 static struct platform_device imote2_leds = {
162 .name = "leds-gpio",
163 .id = -1,
164 .dev = {
165 .platform_data = &imote2_led_data,
166 },
167 };
168
169 /* Reverse engineered partly from Platformx drivers */
170 enum imote2_ldos{
171 vcc_vref,
172 vcc_cc2420,
173 vcc_mica,
174 vcc_bt,
175 /* The two voltages available to sensor boards */
176 vcc_sensor_1_8,
177 vcc_sensor_3,
178
179 vcc_sram_ext, /* directly connected to the pxa271 */
180 vcc_pxa_pll,
181 vcc_pxa_usim, /* Reference voltage for certain gpios */
182 vcc_pxa_mem,
183 vcc_pxa_flash,
184 vcc_pxa_core, /*Dc-Dc buck not yet supported */
185 vcc_lcd,
186 vcc_bb,
187 vcc_bbio,
188 vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
189 };
190
191 /* The values of the various regulator constraints are obviously dependent
192 * on exactly what is wired to each ldo. Unfortunately this information is
193 * not generally available. More information has been requested from Xbow
194 * but as of yet they haven't been forthcoming.
195 *
196 * Some of these are clearly Stargate 2 related (no way of plugging
197 * in an lcd on the IM2 for example!).
198 */
199 static struct regulator_init_data imote2_ldo_init_data[] = {
200 [vcc_bbio] = {
201 .constraints = { /* board default 1.8V */
202 .name = "vcc_bbio",
203 .min_uV = 1800000,
204 .max_uV = 1800000,
205 },
206 },
207 [vcc_bb] = {
208 .constraints = { /* board default 2.8V */
209 .name = "vcc_bb",
210 .min_uV = 2700000,
211 .max_uV = 3000000,
212 },
213 },
214 [vcc_pxa_flash] = {
215 .constraints = {/* default is 1.8V */
216 .name = "vcc_pxa_flash",
217 .min_uV = 1800000,
218 .max_uV = 1800000,
219 },
220 },
221 [vcc_cc2420] = { /* also vcc_io */
222 .constraints = {
223 /* board default is 2.8V */
224 .name = "vcc_cc2420",
225 .min_uV = 2700000,
226 .max_uV = 3300000,
227 },
228 },
229 [vcc_vref] = { /* Reference for what? */
230 .constraints = { /* default 1.8V */
231 .name = "vcc_vref",
232 .min_uV = 1800000,
233 .max_uV = 1800000,
234 },
235 },
236 [vcc_sram_ext] = {
237 .constraints = { /* default 2.8V */
238 .name = "vcc_sram_ext",
239 .min_uV = 2800000,
240 .max_uV = 2800000,
241 },
242 },
243 [vcc_mica] = {
244 .constraints = { /* default 2.8V */
245 .name = "vcc_mica",
246 .min_uV = 2800000,
247 .max_uV = 2800000,
248 },
249 },
250 [vcc_bt] = {
251 .constraints = { /* default 2.8V */
252 .name = "vcc_bt",
253 .min_uV = 2800000,
254 .max_uV = 2800000,
255 },
256 },
257 [vcc_lcd] = {
258 .constraints = { /* default 2.8V */
259 .name = "vcc_lcd",
260 .min_uV = 2700000,
261 .max_uV = 3300000,
262 },
263 },
264 [vcc_io] = { /* Same or higher than everything
265 * bar vccbat and vccusb */
266 .constraints = { /* default 2.8V */
267 .name = "vcc_io",
268 .min_uV = 2692000,
269 .max_uV = 3300000,
270 },
271 },
272 [vcc_sensor_1_8] = {
273 .constraints = { /* default 1.8V */
274 .name = "vcc_sensor_1_8",
275 .min_uV = 1800000,
276 .max_uV = 1800000,
277 },
278 },
279 [vcc_sensor_3] = { /* curiously default 2.8V */
280 .constraints = {
281 .name = "vcc_sensor_3",
282 .min_uV = 2800000,
283 .max_uV = 3000000,
284 },
285 .num_consumer_supplies = ARRAY_SIZE(imote2_sensor_3_con),
286 .consumer_supplies = imote2_sensor_3_con,
287 },
288 [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/
289 .constraints = {
290 .name = "vcc_pxa_pll",
291 .min_uV = 1170000,
292 .max_uV = 1430000,
293 },
294 },
295 [vcc_pxa_usim] = {
296 .constraints = { /* default 1.8V */
297 .name = "vcc_pxa_usim",
298 .min_uV = 1710000,
299 .max_uV = 2160000,
300 },
301 },
302 [vcc_pxa_mem] = {
303 .constraints = { /* default 1.8V */
304 .name = "vcc_pxa_mem",
305 .min_uV = 1800000,
306 .max_uV = 1800000,
307 },
308 },
309 };
310
311 static struct da903x_subdev_info imote2_da9030_subdevs[] = {
312 {
313 .name = "da903x-regulator",
314 .id = DA9030_ID_LDO2,
315 .platform_data = &imote2_ldo_init_data[vcc_bbio],
316 }, {
317 .name = "da903x-regulator",
318 .id = DA9030_ID_LDO3,
319 .platform_data = &imote2_ldo_init_data[vcc_bb],
320 }, {
321 .name = "da903x-regulator",
322 .id = DA9030_ID_LDO4,
323 .platform_data = &imote2_ldo_init_data[vcc_pxa_flash],
324 }, {
325 .name = "da903x-regulator",
326 .id = DA9030_ID_LDO5,
327 .platform_data = &imote2_ldo_init_data[vcc_cc2420],
328 }, {
329 .name = "da903x-regulator",
330 .id = DA9030_ID_LDO6,
331 .platform_data = &imote2_ldo_init_data[vcc_vref],
332 }, {
333 .name = "da903x-regulator",
334 .id = DA9030_ID_LDO7,
335 .platform_data = &imote2_ldo_init_data[vcc_sram_ext],
336 }, {
337 .name = "da903x-regulator",
338 .id = DA9030_ID_LDO8,
339 .platform_data = &imote2_ldo_init_data[vcc_mica],
340 }, {
341 .name = "da903x-regulator",
342 .id = DA9030_ID_LDO9,
343 .platform_data = &imote2_ldo_init_data[vcc_bt],
344 }, {
345 .name = "da903x-regulator",
346 .id = DA9030_ID_LDO10,
347 .platform_data = &imote2_ldo_init_data[vcc_sensor_1_8],
348 }, {
349 .name = "da903x-regulator",
350 .id = DA9030_ID_LDO11,
351 .platform_data = &imote2_ldo_init_data[vcc_sensor_3],
352 }, {
353 .name = "da903x-regulator",
354 .id = DA9030_ID_LDO12,
355 .platform_data = &imote2_ldo_init_data[vcc_lcd],
356 }, {
357 .name = "da903x-regulator",
358 .id = DA9030_ID_LDO15,
359 .platform_data = &imote2_ldo_init_data[vcc_pxa_pll],
360 }, {
361 .name = "da903x-regulator",
362 .id = DA9030_ID_LDO17,
363 .platform_data = &imote2_ldo_init_data[vcc_pxa_usim],
364 }, {
365 .name = "da903x-regulator",
366 .id = DA9030_ID_LDO18,
367 .platform_data = &imote2_ldo_init_data[vcc_io],
368 }, {
369 .name = "da903x-regulator",
370 .id = DA9030_ID_LDO19,
371 .platform_data = &imote2_ldo_init_data[vcc_pxa_mem],
372 },
373 };
374
375 static struct da903x_platform_data imote2_da9030_pdata = {
376 .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs),
377 .subdevs = imote2_da9030_subdevs,
378 };
379
380 /* As the the imote2 doesn't currently have a conventional SD slot
381 * there is no option to hotplug cards, making all this rather simple
382 */
383 static int imote2_mci_get_ro(struct device *dev)
384 {
385 return 0;
386 }
387
388 /* Rather simple case as hotplugging not possible */
389 static struct pxamci_platform_data imote2_mci_platform_data = {
390 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */
391 .get_ro = imote2_mci_get_ro,
392 };
393
394 static struct mtd_partition imote2flash_partitions[] = {
395 {
396 .name = "Bootloader",
397 .size = 0x00040000,
398 .offset = 0,
399 .mask_flags = MTD_WRITEABLE,
400 }, {
401 .name = "Kernel",
402 .size = 0x00200000,
403 .offset = 0x00040000,
404 .mask_flags = 0,
405 }, {
406 .name = "Filesystem",
407 .size = 0x01DC0000,
408 .offset = 0x00240000,
409 .mask_flags = 0,
410 },
411 };
412
413 static struct resource flash_resources = {
414 .start = PXA_CS0_PHYS,
415 .end = PXA_CS0_PHYS + SZ_32M - 1,
416 .flags = IORESOURCE_MEM,
417 };
418
419 static struct flash_platform_data imote2_flash_data = {
420 .map_name = "cfi_probe",
421 .parts = imote2flash_partitions,
422 .nr_parts = ARRAY_SIZE(imote2flash_partitions),
423 .name = "PXA27xOnChipROM",
424 .width = 2,
425 };
426
427 static struct platform_device imote2_flash_device = {
428 .name = "pxa2xx-flash",
429 .id = 0,
430 .dev = {
431 .platform_data = &imote2_flash_data,
432 },
433 .resource = &flash_resources,
434 .num_resources = 1,
435 };
436
437 /* Some of the drivers here are out of kernel at the moment (parts of IIO)
438 * and it may be a while before they are in the mainline.
439 */
440 static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
441 { /* UCAM sensor board */
442 .type = "max1239",
443 .addr = 0x35,
444 }, { /* ITS400 Sensor board only */
445 .type = "max1363",
446 .addr = 0x34,
447 /* Through a nand gate - Also beware, on V2 sensor board the
448 * pull up resistors are missing.
449 */
450 .irq = IRQ_GPIO(99),
451 }, { /* ITS400 Sensor board only */
452 .type = "tsl2561",
453 .addr = 0x49,
454 /* Through a nand gate - Also beware, on V2 sensor board the
455 * pull up resistors are missing.
456 */
457 .irq = IRQ_GPIO(99),
458 }, { /* ITS400 Sensor board only */
459 .type = "tmp175",
460 .addr = 0x4A,
461 .irq = IRQ_GPIO(96),
462 }, { /* IMB400 Multimedia board */
463 .type = "wm8940",
464 .addr = 0x1A,
465 },
466 };
467
468 static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
469 {
470 .type = "da9030",
471 .addr = 0x49,
472 .platform_data = &imote2_da9030_pdata,
473 .irq = gpio_to_irq(1),
474 },
475 };
476
477 static struct pxa2xx_spi_master pxa_ssp_master_0_info = {
478 .num_chipselect = 1,
479 };
480
481 static struct pxa2xx_spi_master pxa_ssp_master_1_info = {
482 .num_chipselect = 1,
483 };
484
485 static struct pxa2xx_spi_master pxa_ssp_master_2_info = {
486 .num_chipselect = 1,
487 };
488
489 static struct pxa2xx_spi_chip staccel_chip_info = {
490 .tx_threshold = 8,
491 .rx_threshold = 8,
492 .dma_burst_size = 8,
493 .timeout = 235,
494 .gpio_cs = 24,
495 };
496
497 static struct pxa2xx_spi_chip cc2420_info = {
498 .tx_threshold = 8,
499 .rx_threshold = 8,
500 .dma_burst_size = 8,
501 .timeout = 235,
502 .gpio_cs = 39,
503 };
504
505 static struct spi_board_info spi_board_info[] __initdata = {
506 { /* Driver in IIO */
507 .modalias = "lis3l02dq",
508 .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
509 .bus_num = 1,
510 .chip_select = 0,
511 .controller_data = &staccel_chip_info,
512 .irq = IRQ_GPIO(96),
513 }, { /* Driver out of kernel as it needs considerable rewriting */
514 .modalias = "cc2420",
515 .max_speed_hz = 6500000,
516 .bus_num = 3,
517 .chip_select = 0,
518 .controller_data = &cc2420_info,
519 },
520 };
521
522 static void im2_udc_command(int cmd)
523 {
524 switch (cmd) {
525 case PXA2XX_UDC_CMD_CONNECT:
526 UP2OCR |= UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE;
527 break;
528 case PXA2XX_UDC_CMD_DISCONNECT:
529 UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE);
530 break;
531 }
532 }
533
534 static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
535 .udc_command = im2_udc_command,
536 };
537
538 static struct platform_device *imote2_devices[] = {
539 &imote2_flash_device,
540 &imote2_leds,
541 &sht15,
542 };
543
544 static struct i2c_pxa_platform_data i2c_pwr_pdata = {
545 .fast_mode = 1,
546 };
547
548 static struct i2c_pxa_platform_data i2c_pdata = {
549 .fast_mode = 1,
550 };
551
552 static void __init imote2_init(void)
553 {
554
555 pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));
556 /* SPI chip select directions - all other directions should
557 * be handled by drivers.*/
558 gpio_direction_output(37, 0);
559
560 platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
561
562 pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
563 pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
564 pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
565
566 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
567
568 i2c_register_board_info(0, imote2_i2c_board_info,
569 ARRAY_SIZE(imote2_i2c_board_info));
570 i2c_register_board_info(1, imote2_pwr_i2c_board_info,
571 ARRAY_SIZE(imote2_pwr_i2c_board_info));
572
573 pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
574 pxa_set_i2c_info(&i2c_pdata);
575
576 pxa_set_mci_info(&imote2_mci_platform_data);
577 pxa_set_udc_info(&imote2_udc_info);
578 }
579
580 MACHINE_START(INTELMOTE2, "IMOTE 2")
581 .phys_io = 0x40000000,
582 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
583 .map_io = pxa_map_io,
584 .init_irq = pxa27x_init_irq,
585 .timer = &pxa_timer,
586 .init_machine = imote2_init,
587 .boot_params = 0xA0000100,
588 MACHINE_END
Linux with added FPC-III support