1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/stargate2.c
4 *
5 * Author: Ed C. Epp
6 * Created: Nov 05, 2002
7 * Copyright: Intel Corp.
8 *
9 * Modified 2009: Jonathan Cameron <jic23@cam.ac.uk>
10 */
11
12 #include <linux/init.h>
13 #include <linux/device.h>
14 #include <linux/interrupt.h>
15 #include <linux/sched.h>
16 #include <linux/bitops.h>
17 #include <linux/fb.h>
18 #include <linux/delay.h>
19 #include <linux/platform_device.h>
20 #include <linux/regulator/machine.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/plat-ram.h>
23 #include <linux/mtd/partitions.h>
24
25 #include <linux/platform_data/i2c-pxa.h>
26 #include <linux/platform_data/pcf857x.h>
27 #include <linux/smc91x.h>
28 #include <linux/gpio/machine.h>
29 #include <linux/gpio.h>
30 #include <linux/leds.h>
31 #include <linux/property.h>
32
33 #include <asm/types.h>
34 #include <asm/setup.h>
35 #include <asm/memory.h>
36 #include <asm/mach-types.h>
37 #include <asm/irq.h>
38
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
42 #include <asm/mach/flash.h>
43
44 #include "pxa27x.h"
45 #include <linux/platform_data/mmc-pxamci.h>
46 #include "udc.h"
47 #include "pxa27x-udc.h"
48 #include <mach/smemc.h>
49
50 #include <linux/spi/spi.h>
51 #include <linux/spi/pxa2xx_spi.h>
52 #include <linux/mfd/da903x.h>
53
54 #include "devices.h"
55 #include "generic.h"
56
57 #define STARGATE_NR_IRQS (IRQ_BOARD_START + 8)
58
59 /* Bluetooth */
60 #define SG2_BT_RESET 81
61
62 /* SD */
63 #define SG2_GPIO_nSD_DETECT 90
64 #define SG2_SD_POWER_ENABLE 89
65
66 static unsigned long sg2_im2_unified_pin_config[] __initdata = {
67 /* Device Identification for wakeup*/
68 GPIO102_GPIO,
69 /* DA9030 */
70 GPIO1_GPIO,
71
72 /* MMC */
73 GPIO32_MMC_CLK,
74 GPIO112_MMC_CMD,
75 GPIO92_MMC_DAT_0,
76 GPIO109_MMC_DAT_1,
77 GPIO110_MMC_DAT_2,
78 GPIO111_MMC_DAT_3,
79
80 /* 802.15.4 radio - driver out of mainline */
81 GPIO22_GPIO, /* CC_RSTN */
82 GPIO114_GPIO, /* CC_FIFO */
83 GPIO116_GPIO, /* CC_CCA */
84 GPIO0_GPIO, /* CC_FIFOP */
85 GPIO16_GPIO, /* CCSFD */
86 GPIO115_GPIO, /* Power enable */
87
88 /* I2C */
89 GPIO117_I2C_SCL,
90 GPIO118_I2C_SDA,
91
92 /* SSP 3 - 802.15.4 radio */
93 GPIO39_GPIO, /* Chip Select */
94 GPIO34_SSP3_SCLK,
95 GPIO35_SSP3_TXD,
96 GPIO41_SSP3_RXD,
97
98 /* SSP 2 to daughter boards */
99 GPIO11_SSP2_RXD,
100 GPIO38_SSP2_TXD,
101 GPIO36_SSP2_SCLK,
102 GPIO37_GPIO, /* chip select */
103
104 /* SSP 1 - to daughter boards */
105 GPIO24_GPIO, /* Chip Select */
106 GPIO23_SSP1_SCLK,
107 GPIO25_SSP1_TXD,
108 GPIO26_SSP1_RXD,
109
110 /* BTUART Basic Connector*/
111 GPIO42_BTUART_RXD,
112 GPIO43_BTUART_TXD,
113 GPIO44_BTUART_CTS,
114 GPIO45_BTUART_RTS,
115
116 /* STUART - IM2 via debug board not sure on SG2*/
117 GPIO46_STUART_RXD,
118 GPIO47_STUART_TXD,
119
120 /* Basic sensor board */
121 GPIO96_GPIO, /* accelerometer interrupt */
122 GPIO99_GPIO, /* ADC interrupt */
123
124 /* SHT15 */
125 GPIO100_GPIO,
126 GPIO98_GPIO,
127
128 /* Basic sensor board */
129 GPIO96_GPIO, /* accelerometer interrupt */
130 GPIO99_GPIO, /* ADC interrupt */
131
132 /* Connector pins specified as gpios */
133 GPIO94_GPIO, /* large basic connector pin 14 */
134 GPIO10_GPIO, /* large basic connector pin 23 */
135 };
136
137 static struct gpiod_lookup_table sht15_gpiod_table = {
138 .dev_id = "sht15",
139 .table = {
140 /* FIXME: should this have |GPIO_OPEN_DRAIN set? */
141 GPIO_LOOKUP("gpio-pxa", 100, "data", GPIO_ACTIVE_HIGH),
142 GPIO_LOOKUP("gpio-pxa", 98, "clk", GPIO_ACTIVE_HIGH),
143 },
144 };
145
146 static struct platform_device sht15 = {
147 .name = "sht15",
148 .id = -1,
149 };
150
151 static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
152 REGULATOR_SUPPLY("vcc", "sht15"),
153 };
154
155 enum stargate2_ldos{
156 vcc_vref,
157 vcc_cc2420,
158 /* a mote connector? */
159 vcc_mica,
160 /* the CSR bluecore chip */
161 vcc_bt,
162 /* The two voltages available to sensor boards */
163 vcc_sensor_1_8,
164 vcc_sensor_3,
165 /* directly connected to the pxa27x */
166 vcc_sram_ext,
167 vcc_pxa_pll,
168 vcc_pxa_usim, /* Reference voltage for certain gpios */
169 vcc_pxa_mem,
170 vcc_pxa_flash,
171 vcc_pxa_core, /*Dc-Dc buck not yet supported */
172 vcc_lcd,
173 vcc_bb,
174 vcc_bbio, /*not sure!*/
175 vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
176 };
177
178 /* The values of the various regulator constraints are obviously dependent
179 * on exactly what is wired to each ldo. Unfortunately this information is
180 * not generally available. More information has been requested from Xbow.
181 */
182 static struct regulator_init_data stargate2_ldo_init_data[] = {
183 [vcc_bbio] = {
184 .constraints = { /* board default 1.8V */
185 .name = "vcc_bbio",
186 .min_uV = 1800000,
187 .max_uV = 1800000,
188 },
189 },
190 [vcc_bb] = {
191 .constraints = { /* board default 2.8V */
192 .name = "vcc_bb",
193 .min_uV = 2700000,
194 .max_uV = 3000000,
195 },
196 },
197 [vcc_pxa_flash] = {
198 .constraints = {/* default is 1.8V */
199 .name = "vcc_pxa_flash",
200 .min_uV = 1800000,
201 .max_uV = 1800000,
202 },
203 },
204 [vcc_cc2420] = { /* also vcc_io */
205 .constraints = {
206 /* board default is 2.8V */
207 .name = "vcc_cc2420",
208 .min_uV = 2700000,
209 .max_uV = 3300000,
210 },
211 },
212 [vcc_vref] = { /* Reference for what? */
213 .constraints = { /* default 1.8V */
214 .name = "vcc_vref",
215 .min_uV = 1800000,
216 .max_uV = 1800000,
217 },
218 },
219 [vcc_sram_ext] = {
220 .constraints = { /* default 2.8V */
221 .name = "vcc_sram_ext",
222 .min_uV = 2800000,
223 .max_uV = 2800000,
224 },
225 },
226 [vcc_mica] = {
227 .constraints = { /* default 2.8V */
228 .name = "vcc_mica",
229 .min_uV = 2800000,
230 .max_uV = 2800000,
231 },
232 },
233 [vcc_bt] = {
234 .constraints = { /* default 2.8V */
235 .name = "vcc_bt",
236 .min_uV = 2800000,
237 .max_uV = 2800000,
238 },
239 },
240 [vcc_lcd] = {
241 .constraints = { /* default 2.8V */
242 .name = "vcc_lcd",
243 .min_uV = 2700000,
244 .max_uV = 3300000,
245 },
246 },
247 [vcc_io] = { /* Same or higher than everything
248 * bar vccbat and vccusb */
249 .constraints = { /* default 2.8V */
250 .name = "vcc_io",
251 .min_uV = 2692000,
252 .max_uV = 3300000,
253 },
254 },
255 [vcc_sensor_1_8] = {
256 .constraints = { /* default 1.8V */
257 .name = "vcc_sensor_1_8",
258 .min_uV = 1800000,
259 .max_uV = 1800000,
260 },
261 },
262 [vcc_sensor_3] = { /* curiously default 2.8V */
263 .constraints = {
264 .name = "vcc_sensor_3",
265 .min_uV = 2800000,
266 .max_uV = 3000000,
267 },
268 .num_consumer_supplies = ARRAY_SIZE(stargate2_sensor_3_con),
269 .consumer_supplies = stargate2_sensor_3_con,
270 },
271 [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/
272 .constraints = {
273 .name = "vcc_pxa_pll",
274 .min_uV = 1170000,
275 .max_uV = 1430000,
276 },
277 },
278 [vcc_pxa_usim] = {
279 .constraints = { /* default 1.8V */
280 .name = "vcc_pxa_usim",
281 .min_uV = 1710000,
282 .max_uV = 2160000,
283 },
284 },
285 [vcc_pxa_mem] = {
286 .constraints = { /* default 1.8V */
287 .name = "vcc_pxa_mem",
288 .min_uV = 1800000,
289 .max_uV = 1800000,
290 },
291 },
292 };
293
294 static struct mtd_partition stargate2flash_partitions[] = {
295 {
296 .name = "Bootloader",
297 .size = 0x00040000,
298 .offset = 0,
299 .mask_flags = 0,
300 }, {
301 .name = "Kernel",
302 .size = 0x00200000,
303 .offset = 0x00040000,
304 .mask_flags = 0
305 }, {
306 .name = "Filesystem",
307 .size = 0x01DC0000,
308 .offset = 0x00240000,
309 .mask_flags = 0
310 },
311 };
312
313 static struct resource flash_resources = {
314 .start = PXA_CS0_PHYS,
315 .end = PXA_CS0_PHYS + SZ_32M - 1,
316 .flags = IORESOURCE_MEM,
317 };
318
319 static struct flash_platform_data stargate2_flash_data = {
320 .map_name = "cfi_probe",
321 .parts = stargate2flash_partitions,
322 .nr_parts = ARRAY_SIZE(stargate2flash_partitions),
323 .name = "PXA27xOnChipROM",
324 .width = 2,
325 };
326
327 static struct platform_device stargate2_flash_device = {
328 .name = "pxa2xx-flash",
329 .id = 0,
330 .dev = {
331 .platform_data = &stargate2_flash_data,
332 },
333 .resource = &flash_resources,
334 .num_resources = 1,
335 };
336
337 static struct pxa2xx_spi_controller pxa_ssp_master_0_info = {
338 .num_chipselect = 1,
339 };
340
341 static struct pxa2xx_spi_controller pxa_ssp_master_1_info = {
342 .num_chipselect = 1,
343 };
344
345 static struct pxa2xx_spi_controller pxa_ssp_master_2_info = {
346 .num_chipselect = 1,
347 };
348
349 /* An upcoming kernel change will scrap SFRM usage so these
350 * drivers have been moved to use gpio's via cs_control */
351 static struct pxa2xx_spi_chip staccel_chip_info = {
352 .tx_threshold = 8,
353 .rx_threshold = 8,
354 .dma_burst_size = 8,
355 .timeout = 235,
356 .gpio_cs = 24,
357 };
358
359 static struct pxa2xx_spi_chip cc2420_info = {
360 .tx_threshold = 8,
361 .rx_threshold = 8,
362 .dma_burst_size = 8,
363 .timeout = 235,
364 .gpio_cs = 39,
365 };
366
367 static struct spi_board_info spi_board_info[] __initdata = {
368 {
369 .modalias = "lis3l02dq",
370 .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
371 .bus_num = 1,
372 .chip_select = 0,
373 .controller_data = &staccel_chip_info,
374 .irq = PXA_GPIO_TO_IRQ(96),
375 }, {
376 .modalias = "cc2420",
377 .max_speed_hz = 6500000,
378 .bus_num = 3,
379 .chip_select = 0,
380 .controller_data = &cc2420_info,
381 },
382 };
383
sg2_udc_command(int cmd)384 static void sg2_udc_command(int cmd)
385 {
386 switch (cmd) {
387 case PXA2XX_UDC_CMD_CONNECT:
388 UP2OCR |= UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE;
389 break;
390 case PXA2XX_UDC_CMD_DISCONNECT:
391 UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE);
392 break;
393 }
394 }
395
396 static struct i2c_pxa_platform_data i2c_pwr_pdata = {
397 .fast_mode = 1,
398 };
399
400 static struct i2c_pxa_platform_data i2c_pdata = {
401 .fast_mode = 1,
402 };
403
imote2_stargate2_init(void)404 static void __init imote2_stargate2_init(void)
405 {
406
407 pxa2xx_mfp_config(ARRAY_AND_SIZE(sg2_im2_unified_pin_config));
408
409 pxa_set_ffuart_info(NULL);
410 pxa_set_btuart_info(NULL);
411 pxa_set_stuart_info(NULL);
412
413 pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
414 pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
415 pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
416 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
417
418
419 pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
420 pxa_set_i2c_info(&i2c_pdata);
421 }
422
423 #ifdef CONFIG_MACH_INTELMOTE2
424 /* As the the imote2 doesn't currently have a conventional SD slot
425 * there is no option to hotplug cards, making all this rather simple
426 */
imote2_mci_get_ro(struct device * dev)427 static int imote2_mci_get_ro(struct device *dev)
428 {
429 return 0;
430 }
431
432 /* Rather simple case as hotplugging not possible */
433 static struct pxamci_platform_data imote2_mci_platform_data = {
434 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */
435 .get_ro = imote2_mci_get_ro,
436 };
437
438 static struct gpio_led imote2_led_pins[] = {
439 {
440 .name = "imote2:red",
441 .gpio = 103,
442 .active_low = 1,
443 }, {
444 .name = "imote2:green",
445 .gpio = 104,
446 .active_low = 1,
447 }, {
448 .name = "imote2:blue",
449 .gpio = 105,
450 .active_low = 1,
451 },
452 };
453
454 static struct gpio_led_platform_data imote2_led_data = {
455 .num_leds = ARRAY_SIZE(imote2_led_pins),
456 .leds = imote2_led_pins,
457 };
458
459 static struct platform_device imote2_leds = {
460 .name = "leds-gpio",
461 .id = -1,
462 .dev = {
463 .platform_data = &imote2_led_data,
464 },
465 };
466
467 static struct da903x_subdev_info imote2_da9030_subdevs[] = {
468 {
469 .name = "da903x-regulator",
470 .id = DA9030_ID_LDO2,
471 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
472 }, {
473 .name = "da903x-regulator",
474 .id = DA9030_ID_LDO3,
475 .platform_data = &stargate2_ldo_init_data[vcc_bb],
476 }, {
477 .name = "da903x-regulator",
478 .id = DA9030_ID_LDO4,
479 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
480 }, {
481 .name = "da903x-regulator",
482 .id = DA9030_ID_LDO5,
483 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
484 }, {
485 .name = "da903x-regulator",
486 .id = DA9030_ID_LDO6,
487 .platform_data = &stargate2_ldo_init_data[vcc_vref],
488 }, {
489 .name = "da903x-regulator",
490 .id = DA9030_ID_LDO7,
491 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
492 }, {
493 .name = "da903x-regulator",
494 .id = DA9030_ID_LDO8,
495 .platform_data = &stargate2_ldo_init_data[vcc_mica],
496 }, {
497 .name = "da903x-regulator",
498 .id = DA9030_ID_LDO9,
499 .platform_data = &stargate2_ldo_init_data[vcc_bt],
500 }, {
501 .name = "da903x-regulator",
502 .id = DA9030_ID_LDO10,
503 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
504 }, {
505 .name = "da903x-regulator",
506 .id = DA9030_ID_LDO11,
507 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
508 }, {
509 .name = "da903x-regulator",
510 .id = DA9030_ID_LDO12,
511 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
512 }, {
513 .name = "da903x-regulator",
514 .id = DA9030_ID_LDO15,
515 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
516 }, {
517 .name = "da903x-regulator",
518 .id = DA9030_ID_LDO17,
519 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
520 }, {
521 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
522 .id = DA9030_ID_LDO18,
523 .platform_data = &stargate2_ldo_init_data[vcc_io],
524 }, {
525 .name = "da903x-regulator",
526 .id = DA9030_ID_LDO19,
527 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
528 },
529 };
530
531 static struct da903x_platform_data imote2_da9030_pdata = {
532 .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs),
533 .subdevs = imote2_da9030_subdevs,
534 };
535
536 static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
537 {
538 .type = "da9030",
539 .addr = 0x49,
540 .platform_data = &imote2_da9030_pdata,
541 .irq = PXA_GPIO_TO_IRQ(1),
542 },
543 };
544
545 static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
546 { /* UCAM sensor board */
547 .type = "max1239",
548 .addr = 0x35,
549 }, { /* ITS400 Sensor board only */
550 .type = "max1363",
551 .addr = 0x34,
552 /* Through a nand gate - Also beware, on V2 sensor board the
553 * pull up resistors are missing.
554 */
555 .irq = PXA_GPIO_TO_IRQ(99),
556 }, { /* ITS400 Sensor board only */
557 .type = "tsl2561",
558 .addr = 0x49,
559 /* Through a nand gate - Also beware, on V2 sensor board the
560 * pull up resistors are missing.
561 */
562 .irq = PXA_GPIO_TO_IRQ(99),
563 }, { /* ITS400 Sensor board only */
564 .type = "tmp175",
565 .addr = 0x4A,
566 .irq = PXA_GPIO_TO_IRQ(96),
567 }, { /* IMB400 Multimedia board */
568 .type = "wm8940",
569 .addr = 0x1A,
570 },
571 };
572
573 static unsigned long imote2_pin_config[] __initdata = {
574
575 /* Button */
576 GPIO91_GPIO,
577
578 /* LEDS */
579 GPIO103_GPIO, /* red led */
580 GPIO104_GPIO, /* green led */
581 GPIO105_GPIO, /* blue led */
582 };
583
584 static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
585 .udc_command = sg2_udc_command,
586 };
587
588 static struct platform_device imote2_audio_device = {
589 .name = "imote2-audio",
590 .id = -1,
591 };
592
593 static struct platform_device *imote2_devices[] = {
594 &stargate2_flash_device,
595 &imote2_leds,
596 &sht15,
597 &imote2_audio_device,
598 };
599
imote2_init(void)600 static void __init imote2_init(void)
601 {
602 pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));
603
604 imote2_stargate2_init();
605
606 gpiod_add_lookup_table(&sht15_gpiod_table);
607 platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
608
609 i2c_register_board_info(0, imote2_i2c_board_info,
610 ARRAY_SIZE(imote2_i2c_board_info));
611 i2c_register_board_info(1, imote2_pwr_i2c_board_info,
612 ARRAY_SIZE(imote2_pwr_i2c_board_info));
613
614 pxa_set_mci_info(&imote2_mci_platform_data);
615 pxa_set_udc_info(&imote2_udc_info);
616 }
617 #endif
618
619 #ifdef CONFIG_MACH_STARGATE2
620
621 static unsigned long stargate2_pin_config[] __initdata = {
622
623 GPIO15_nCS_1, /* SRAM */
624 /* SMC91x */
625 GPIO80_nCS_4,
626 GPIO40_GPIO, /*cable detect?*/
627
628 /* Button */
629 GPIO91_GPIO | WAKEUP_ON_LEVEL_HIGH,
630
631 /* Compact Flash */
632 GPIO79_PSKTSEL,
633 GPIO48_nPOE,
634 GPIO49_nPWE,
635 GPIO50_nPIOR,
636 GPIO51_nPIOW,
637 GPIO85_nPCE_1,
638 GPIO54_nPCE_2,
639 GPIO55_nPREG,
640 GPIO56_nPWAIT,
641 GPIO57_nIOIS16,
642 GPIO120_GPIO, /* Buff ctrl */
643 GPIO108_GPIO, /* Power ctrl */
644 GPIO82_GPIO, /* Reset */
645 GPIO53_GPIO, /* SG2_S0_GPIO_DETECT */
646
647 /* MMC not shared with imote2 */
648 GPIO90_GPIO, /* nSD detect */
649 GPIO89_GPIO, /* SD_POWER_ENABLE */
650
651 /* Bluetooth */
652 GPIO81_GPIO, /* reset */
653 };
654
655 static struct resource smc91x_resources[] = {
656 [0] = {
657 .name = "smc91x-regs",
658 .start = (PXA_CS4_PHYS + 0x300),
659 .end = (PXA_CS4_PHYS + 0xfffff),
660 .flags = IORESOURCE_MEM,
661 },
662 [1] = {
663 .start = PXA_GPIO_TO_IRQ(40),
664 .end = PXA_GPIO_TO_IRQ(40),
665 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
666 }
667 };
668
669 static struct smc91x_platdata stargate2_smc91x_info = {
670 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT
671 | SMC91X_NOWAIT | SMC91X_USE_DMA,
672 .pxa_u16_align4 = true,
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 */
stargate2_mci_init(struct device * dev,irq_handler_t stargate2_detect_int,void * data)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(PXA_GPIO_TO_IRQ(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 */
stargate2_mci_setpower(struct device * dev,unsigned int vdd)734 static int stargate2_mci_setpower(struct device *dev, unsigned int vdd)
735 {
736 gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd);
737 return 0;
738 }
739
stargate2_mci_exit(struct device * dev,void * data)740 static void stargate2_mci_exit(struct device *dev, void *data)
741 {
742 free_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT), data);
743 gpio_free(SG2_SD_POWER_ENABLE);
744 gpio_free(SG2_GPIO_nSD_DETECT);
745 }
746
747 static struct pxamci_platform_data stargate2_mci_platform_data = {
748 .detect_delay_ms = 250,
749 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
750 .init = stargate2_mci_init,
751 .setpower = stargate2_mci_setpower,
752 .exit = stargate2_mci_exit,
753 };
754
755
756 /*
757 * SRAM - The Stargate 2 has 32MB of SRAM.
758 *
759 * Here it is made available as an MTD. This will then
760 * typically have a cifs filesystem created on it to provide
761 * fast temporary storage.
762 */
763 static struct resource sram_resources = {
764 .start = PXA_CS1_PHYS,
765 .end = PXA_CS1_PHYS + SZ_32M-1,
766 .flags = IORESOURCE_MEM,
767 };
768
769 static struct platdata_mtd_ram stargate2_sram_pdata = {
770 .mapname = "Stargate2 SRAM",
771 .bankwidth = 2,
772 };
773
774 static struct platform_device stargate2_sram = {
775 .name = "mtd-ram",
776 .id = 0,
777 .resource = &sram_resources,
778 .num_resources = 1,
779 .dev = {
780 .platform_data = &stargate2_sram_pdata,
781 },
782 };
783
784 static struct pcf857x_platform_data platform_data_pcf857x = {
785 .gpio_base = 128,
786 .n_latch = 0,
787 .setup = NULL,
788 .teardown = NULL,
789 .context = NULL,
790 };
791
792 static const struct property_entry pca9500_eeprom_properties[] = {
793 PROPERTY_ENTRY_U32("pagesize", 4),
794 { }
795 };
796
797 static const struct software_node pca9500_eeprom_node = {
798 .properties = pca9500_eeprom_properties,
799 };
800
801 /**
802 * stargate2_reset_bluetooth() reset the bluecore to ensure consistent state
803 **/
stargate2_reset_bluetooth(void)804 static int stargate2_reset_bluetooth(void)
805 {
806 int err;
807 err = gpio_request(SG2_BT_RESET, "SG2_BT_RESET");
808 if (err) {
809 printk(KERN_ERR "Could not get gpio for bluetooth reset\n");
810 return err;
811 }
812 gpio_direction_output(SG2_BT_RESET, 1);
813 mdelay(5);
814 /* now reset it - 5 msec minimum */
815 gpio_set_value(SG2_BT_RESET, 0);
816 mdelay(10);
817 gpio_set_value(SG2_BT_RESET, 1);
818 gpio_free(SG2_BT_RESET);
819 return 0;
820 }
821
822 static struct led_info stargate2_leds[] = {
823 {
824 .name = "sg2:red",
825 .flags = DA9030_LED_RATE_ON,
826 }, {
827 .name = "sg2:blue",
828 .flags = DA9030_LED_RATE_ON,
829 }, {
830 .name = "sg2:green",
831 .flags = DA9030_LED_RATE_ON,
832 },
833 };
834
835 static struct da903x_subdev_info stargate2_da9030_subdevs[] = {
836 {
837 .name = "da903x-led",
838 .id = DA9030_ID_LED_2,
839 .platform_data = &stargate2_leds[0],
840 }, {
841 .name = "da903x-led",
842 .id = DA9030_ID_LED_3,
843 .platform_data = &stargate2_leds[2],
844 }, {
845 .name = "da903x-led",
846 .id = DA9030_ID_LED_4,
847 .platform_data = &stargate2_leds[1],
848 }, {
849 .name = "da903x-regulator",
850 .id = DA9030_ID_LDO2,
851 .platform_data = &stargate2_ldo_init_data[vcc_bbio],
852 }, {
853 .name = "da903x-regulator",
854 .id = DA9030_ID_LDO3,
855 .platform_data = &stargate2_ldo_init_data[vcc_bb],
856 }, {
857 .name = "da903x-regulator",
858 .id = DA9030_ID_LDO4,
859 .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
860 }, {
861 .name = "da903x-regulator",
862 .id = DA9030_ID_LDO5,
863 .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
864 }, {
865 .name = "da903x-regulator",
866 .id = DA9030_ID_LDO6,
867 .platform_data = &stargate2_ldo_init_data[vcc_vref],
868 }, {
869 .name = "da903x-regulator",
870 .id = DA9030_ID_LDO7,
871 .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
872 }, {
873 .name = "da903x-regulator",
874 .id = DA9030_ID_LDO8,
875 .platform_data = &stargate2_ldo_init_data[vcc_mica],
876 }, {
877 .name = "da903x-regulator",
878 .id = DA9030_ID_LDO9,
879 .platform_data = &stargate2_ldo_init_data[vcc_bt],
880 }, {
881 .name = "da903x-regulator",
882 .id = DA9030_ID_LDO10,
883 .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
884 }, {
885 .name = "da903x-regulator",
886 .id = DA9030_ID_LDO11,
887 .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
888 }, {
889 .name = "da903x-regulator",
890 .id = DA9030_ID_LDO12,
891 .platform_data = &stargate2_ldo_init_data[vcc_lcd],
892 }, {
893 .name = "da903x-regulator",
894 .id = DA9030_ID_LDO15,
895 .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
896 }, {
897 .name = "da903x-regulator",
898 .id = DA9030_ID_LDO17,
899 .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
900 }, {
901 .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
902 .id = DA9030_ID_LDO18,
903 .platform_data = &stargate2_ldo_init_data[vcc_io],
904 }, {
905 .name = "da903x-regulator",
906 .id = DA9030_ID_LDO19,
907 .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
908 },
909 };
910
911 static struct da903x_platform_data stargate2_da9030_pdata = {
912 .num_subdevs = ARRAY_SIZE(stargate2_da9030_subdevs),
913 .subdevs = stargate2_da9030_subdevs,
914 };
915
916 static struct i2c_board_info __initdata stargate2_pwr_i2c_board_info[] = {
917 {
918 .type = "da9030",
919 .addr = 0x49,
920 .platform_data = &stargate2_da9030_pdata,
921 .irq = PXA_GPIO_TO_IRQ(1),
922 },
923 };
924
925 static struct i2c_board_info __initdata stargate2_i2c_board_info[] = {
926 /* Techically this a pca9500 - but it's compatible with the 8574
927 * for gpio expansion and the 24c02 for eeprom access.
928 */
929 {
930 .type = "pcf8574",
931 .addr = 0x27,
932 .platform_data = &platform_data_pcf857x,
933 }, {
934 .type = "24c02",
935 .addr = 0x57,
936 .swnode = &pca9500_eeprom_node,
937 }, {
938 .type = "max1238",
939 .addr = 0x35,
940 }, { /* ITS400 Sensor board only */
941 .type = "max1363",
942 .addr = 0x34,
943 /* Through a nand gate - Also beware, on V2 sensor board the
944 * pull up resistors are missing.
945 */
946 .irq = PXA_GPIO_TO_IRQ(99),
947 }, { /* ITS400 Sensor board only */
948 .type = "tsl2561",
949 .addr = 0x49,
950 /* Through a nand gate - Also beware, on V2 sensor board the
951 * pull up resistors are missing.
952 */
953 .irq = PXA_GPIO_TO_IRQ(99),
954 }, { /* ITS400 Sensor board only */
955 .type = "tmp175",
956 .addr = 0x4A,
957 .irq = PXA_GPIO_TO_IRQ(96),
958 },
959 };
960
961 /* Board doesn't support cable detection - so always lie and say
962 * something is there.
963 */
sg2_udc_detect(void)964 static int sg2_udc_detect(void)
965 {
966 return 1;
967 }
968
969 static struct pxa2xx_udc_mach_info stargate2_udc_info __initdata = {
970 .udc_is_connected = sg2_udc_detect,
971 .udc_command = sg2_udc_command,
972 };
973
974 static struct platform_device *stargate2_devices[] = {
975 &stargate2_flash_device,
976 &stargate2_sram,
977 &smc91x_device,
978 &sht15,
979 };
980
stargate2_init(void)981 static void __init stargate2_init(void)
982 {
983 /* This is probably a board specific hack as this must be set
984 prior to connecting the MFP stuff up. */
985 __raw_writel(__raw_readl(MECR) & ~MECR_NOS, MECR);
986
987 pxa2xx_mfp_config(ARRAY_AND_SIZE(stargate2_pin_config));
988
989 imote2_stargate2_init();
990
991 gpiod_add_lookup_table(&sht15_gpiod_table);
992 platform_add_devices(ARRAY_AND_SIZE(stargate2_devices));
993
994 i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info));
995 i2c_register_board_info(1, stargate2_pwr_i2c_board_info,
996 ARRAY_SIZE(stargate2_pwr_i2c_board_info));
997
998 pxa_set_mci_info(&stargate2_mci_platform_data);
999
1000 pxa_set_udc_info(&stargate2_udc_info);
1001
1002 stargate2_reset_bluetooth();
1003 }
1004 #endif
1005
1006 #ifdef CONFIG_MACH_INTELMOTE2
1007 MACHINE_START(INTELMOTE2, "IMOTE 2")
1008 .map_io = pxa27x_map_io,
1009 .nr_irqs = PXA_NR_IRQS,
1010 .init_irq = pxa27x_init_irq,
1011 .handle_irq = pxa27x_handle_irq,
1012 .init_time = pxa_timer_init,
1013 .init_machine = imote2_init,
1014 .atag_offset = 0x100,
1015 .restart = pxa_restart,
1016 MACHINE_END
1017 #endif
1018
1019 #ifdef CONFIG_MACH_STARGATE2
1020 MACHINE_START(STARGATE2, "Stargate 2")
1021 .map_io = pxa27x_map_io,
1022 .nr_irqs = STARGATE_NR_IRQS,
1023 .init_irq = pxa27x_init_irq,
1024 .handle_irq = pxa27x_handle_irq,
1025 .init_time = pxa_timer_init,
1026 .init_machine = stargate2_init,
1027 .atag_offset = 0x100,
1028 .restart = pxa_restart,
1029 MACHINE_END
1030 #endif
1031