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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-beck.git] / arch / arm / mach-pxa / imote2.c
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         .gpio_card_detect = -1,
393         .gpio_card_ro   = -1,
394         .gpio_power = -1,
395 };
396
397 static struct mtd_partition imote2flash_partitions[] = {
398         {
399                 .name = "Bootloader",
400                 .size = 0x00040000,
401                 .offset = 0,
402                 .mask_flags = MTD_WRITEABLE,
403         }, {
404                 .name = "Kernel",
405                 .size = 0x00200000,
406                 .offset = 0x00040000,
407                 .mask_flags = 0,
408         }, {
409                 .name = "Filesystem",
410                 .size = 0x01DC0000,
411                 .offset = 0x00240000,
412                 .mask_flags = 0,
413         },
414 };
415
416 static struct resource flash_resources = {
417         .start = PXA_CS0_PHYS,
418         .end = PXA_CS0_PHYS + SZ_32M - 1,
419         .flags = IORESOURCE_MEM,
420 };
421
422 static struct flash_platform_data imote2_flash_data = {
423         .map_name = "cfi_probe",
424         .parts = imote2flash_partitions,
425         .nr_parts = ARRAY_SIZE(imote2flash_partitions),
426         .name = "PXA27xOnChipROM",
427         .width = 2,
428 };
429
430 static struct platform_device imote2_flash_device = {
431         .name = "pxa2xx-flash",
432         .id = 0,
433         .dev = {
434                 .platform_data = &imote2_flash_data,
435         },
436         .resource = &flash_resources,
437         .num_resources = 1,
438 };
439
440 /* Some of the drivers here are out of kernel at the moment (parts of IIO)
441  * and it may be a while before they are in the mainline.
442  */
443 static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
444         { /* UCAM sensor board */
445                 .type = "max1239",
446                 .addr = 0x35,
447         }, { /* ITS400 Sensor board only */
448                 .type = "max1363",
449                 .addr = 0x34,
450                 /* Through a nand gate - Also beware, on V2 sensor board the
451                  * pull up resistors are missing.
452                  */
453                 .irq = IRQ_GPIO(99),
454         }, { /* ITS400 Sensor board only */
455                 .type = "tsl2561",
456                 .addr = 0x49,
457                 /* Through a nand gate - Also beware, on V2 sensor board the
458                  * pull up resistors are missing.
459                  */
460                 .irq = IRQ_GPIO(99),
461         }, { /* ITS400 Sensor board only */
462                 .type = "tmp175",
463                 .addr = 0x4A,
464                 .irq = IRQ_GPIO(96),
465         }, { /* IMB400 Multimedia board */
466                 .type = "wm8940",
467                 .addr = 0x1A,
468         },
469 };
470
471 static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
472         {
473                 .type = "da9030",
474                 .addr = 0x49,
475                 .platform_data = &imote2_da9030_pdata,
476                 .irq = gpio_to_irq(1),
477         },
478 };
479
480 static struct pxa2xx_spi_master pxa_ssp_master_0_info = {
481         .num_chipselect = 1,
482 };
483
484 static struct pxa2xx_spi_master pxa_ssp_master_1_info = {
485         .num_chipselect = 1,
486 };
487
488 static struct pxa2xx_spi_master pxa_ssp_master_2_info = {
489         .num_chipselect = 1,
490 };
491
492 static struct pxa2xx_spi_chip staccel_chip_info = {
493         .tx_threshold = 8,
494         .rx_threshold = 8,
495         .dma_burst_size = 8,
496         .timeout = 235,
497         .gpio_cs = 24,
498 };
499
500 static struct pxa2xx_spi_chip cc2420_info = {
501         .tx_threshold = 8,
502         .rx_threshold = 8,
503         .dma_burst_size = 8,
504         .timeout = 235,
505         .gpio_cs = 39,
506 };
507
508 static struct spi_board_info spi_board_info[] __initdata = {
509         { /* Driver in IIO */
510                 .modalias = "lis3l02dq",
511                 .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
512                 .bus_num = 1,
513                 .chip_select = 0,
514                 .controller_data = &staccel_chip_info,
515                 .irq = IRQ_GPIO(96),
516         }, { /* Driver out of kernel as it needs considerable rewriting */
517                 .modalias = "cc2420",
518                 .max_speed_hz = 6500000,
519                 .bus_num = 3,
520                 .chip_select = 0,
521                 .controller_data = &cc2420_info,
522         },
523 };
524
525 static void im2_udc_command(int cmd)
526 {
527         switch (cmd) {
528         case PXA2XX_UDC_CMD_CONNECT:
529                 UP2OCR |=  UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE;
530                 break;
531         case PXA2XX_UDC_CMD_DISCONNECT:
532                 UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE);
533                 break;
534         }
535 }
536
537 static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
538         .udc_command            = im2_udc_command,
539 };
540
541 static struct platform_device *imote2_devices[] = {
542         &imote2_flash_device,
543         &imote2_leds,
544         &sht15,
545 };
546
547 static struct i2c_pxa_platform_data i2c_pwr_pdata = {
548         .fast_mode = 1,
549 };
550
551 static struct i2c_pxa_platform_data i2c_pdata = {
552         .fast_mode = 1,
553 };
554
555 static void __init imote2_init(void)
556 {
557         pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));
558
559         pxa_set_ffuart_info(NULL);
560         pxa_set_btuart_info(NULL);
561         pxa_set_stuart_info(NULL);
562
563         /* SPI chip select directions - all other directions should
564          * be handled by drivers.*/
565         gpio_direction_output(37, 0);
566
567         platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
568
569         pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
570         pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
571         pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
572
573         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
574
575         i2c_register_board_info(0, imote2_i2c_board_info,
576                                 ARRAY_SIZE(imote2_i2c_board_info));
577         i2c_register_board_info(1, imote2_pwr_i2c_board_info,
578                                 ARRAY_SIZE(imote2_pwr_i2c_board_info));
579
580         pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
581         pxa_set_i2c_info(&i2c_pdata);
582
583         pxa_set_mci_info(&imote2_mci_platform_data);
584         pxa_set_udc_info(&imote2_udc_info);
585 }
586
587 MACHINE_START(INTELMOTE2, "IMOTE 2")
588         .phys_io        = 0x40000000,
589         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
590         .map_io         = pxa_map_io,
591         .init_irq       = pxa27x_init_irq,
592         .timer          = &pxa_timer,
593         .init_machine   = imote2_init,
594         .boot_params    = 0xA0000100,
595 MACHINE_END