1 /*
2 * arch/arm/mach-pxa/raumfeld.c
3 *
4 * Support for the following Raumfeld devices:
5 *
6 * * Controller
7 * * Connector
8 * * Speaker S/M
9 *
10 * See http://www.raumfeld.com for details.
11 *
12 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/property.h>
22 #include <linux/platform_device.h>
23 #include <linux/interrupt.h>
24 #include <linux/gpio.h>
25 #include <linux/gpio/machine.h>
26 #include <linux/smsc911x.h>
27 #include <linux/input.h>
28 #include <linux/gpio_keys.h>
29 #include <linux/leds.h>
30 #include <linux/w1-gpio.h>
31 #include <linux/sched.h>
32 #include <linux/pwm.h>
33 #include <linux/pwm_backlight.h>
34 #include <linux/i2c.h>
35 #include <linux/platform_data/i2c-pxa.h>
36 #include <linux/spi/spi.h>
37 #include <linux/spi/spi_gpio.h>
38 #include <linux/lis3lv02d.h>
39 #include <linux/pda_power.h>
40 #include <linux/power_supply.h>
41 #include <linux/regulator/max8660.h>
42 #include <linux/regulator/machine.h>
43 #include <linux/regulator/fixed.h>
44 #include <linux/regulator/consumer.h>
45 #include <linux/delay.h>
46
47 #include <asm/system_info.h>
48
49 #include <asm/mach-types.h>
50 #include <asm/mach/arch.h>
51
52 #include "pxa300.h"
53 #include <linux/platform_data/usb-ohci-pxa27x.h>
54 #include <linux/platform_data/video-pxafb.h>
55 #include <linux/platform_data/mmc-pxamci.h>
56 #include <linux/platform_data/mtd-nand-pxa3xx.h>
57
58 #include "generic.h"
59 #include "devices.h"
60
61 /* common GPIO definitions */
62
63 /* inputs */
64 #define GPIO_ON_OFF (14)
65 #define GPIO_VOLENC_A (19)
66 #define GPIO_VOLENC_B (20)
67 #define GPIO_CHARGE_DONE (23)
68 #define GPIO_CHARGE_IND (27)
69 #define GPIO_TOUCH_IRQ (32)
70 #define GPIO_ETH_IRQ (40)
71 #define GPIO_SPI_MISO (98)
72 #define GPIO_ACCEL_IRQ (104)
73 #define GPIO_RESCUE_BOOT (115)
74 #define GPIO_DOCK_DETECT (116)
75 #define GPIO_KEY1 (117)
76 #define GPIO_KEY2 (118)
77 #define GPIO_KEY3 (119)
78 #define GPIO_CHARGE_USB_OK (112)
79 #define GPIO_CHARGE_DC_OK (101)
80 #define GPIO_CHARGE_USB_SUSP (102)
81
82 /* outputs */
83 #define GPIO_SHUTDOWN_SUPPLY (16)
84 #define GPIO_SHUTDOWN_BATT (18)
85 #define GPIO_CHRG_PEN2 (31)
86 #define GPIO_TFT_VA_EN (33)
87 #define GPIO_SPDIF_CS (34)
88 #define GPIO_LED2 (35)
89 #define GPIO_LED1 (36)
90 #define GPIO_SPDIF_RESET (38)
91 #define GPIO_SPI_CLK (95)
92 #define GPIO_MCLK_DAC_CS (96)
93 #define GPIO_SPI_MOSI (97)
94 #define GPIO_W1_PULLUP_ENABLE (105)
95 #define GPIO_DISPLAY_ENABLE (106)
96 #define GPIO_MCLK_RESET (111)
97 #define GPIO_W2W_RESET (113)
98 #define GPIO_W2W_PDN (114)
99 #define GPIO_CODEC_RESET (120)
100 #define GPIO_AUDIO_VA_ENABLE (124)
101 #define GPIO_ACCEL_CS (125)
102 #define GPIO_ONE_WIRE (126)
103
104 /*
105 * GPIO configurations
106 */
107 static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
108 /* UART1 */
109 GPIO77_UART1_RXD,
110 GPIO78_UART1_TXD,
111 GPIO79_UART1_CTS,
112 GPIO81_UART1_DSR,
113 GPIO83_UART1_DTR,
114 GPIO84_UART1_RTS,
115
116 /* UART3 */
117 GPIO110_UART3_RXD,
118
119 /* USB Host */
120 GPIO0_2_USBH_PEN,
121 GPIO1_2_USBH_PWR,
122
123 /* I2C */
124 GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
125 GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
126
127 /* SPI */
128 GPIO34_GPIO, /* SPDIF_CS */
129 GPIO96_GPIO, /* MCLK_CS */
130 GPIO125_GPIO, /* ACCEL_CS */
131
132 /* MMC */
133 GPIO3_MMC1_DAT0,
134 GPIO4_MMC1_DAT1,
135 GPIO5_MMC1_DAT2,
136 GPIO6_MMC1_DAT3,
137 GPIO7_MMC1_CLK,
138 GPIO8_MMC1_CMD,
139
140 /* One-wire */
141 GPIO126_GPIO | MFP_LPM_FLOAT,
142 GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,
143
144 /* CHRG_USB_OK */
145 GPIO101_GPIO | MFP_PULL_HIGH,
146 /* CHRG_USB_OK */
147 GPIO112_GPIO | MFP_PULL_HIGH,
148 /* CHRG_USB_SUSP */
149 GPIO102_GPIO,
150 /* DISPLAY_ENABLE */
151 GPIO106_GPIO,
152 /* DOCK_DETECT */
153 GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
154
155 /* LCD */
156 GPIO54_LCD_LDD_0,
157 GPIO55_LCD_LDD_1,
158 GPIO56_LCD_LDD_2,
159 GPIO57_LCD_LDD_3,
160 GPIO58_LCD_LDD_4,
161 GPIO59_LCD_LDD_5,
162 GPIO60_LCD_LDD_6,
163 GPIO61_LCD_LDD_7,
164 GPIO62_LCD_LDD_8,
165 GPIO63_LCD_LDD_9,
166 GPIO64_LCD_LDD_10,
167 GPIO65_LCD_LDD_11,
168 GPIO66_LCD_LDD_12,
169 GPIO67_LCD_LDD_13,
170 GPIO68_LCD_LDD_14,
171 GPIO69_LCD_LDD_15,
172 GPIO70_LCD_LDD_16,
173 GPIO71_LCD_LDD_17,
174 GPIO72_LCD_FCLK,
175 GPIO73_LCD_LCLK,
176 GPIO74_LCD_PCLK,
177 GPIO75_LCD_BIAS,
178 };
179
180 static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
181 /* UART1 */
182 GPIO77_UART1_RXD,
183 GPIO78_UART1_TXD,
184 GPIO79_UART1_CTS,
185 GPIO81_UART1_DSR,
186 GPIO83_UART1_DTR,
187 GPIO84_UART1_RTS,
188
189 /* UART3 */
190 GPIO110_UART3_RXD,
191
192 /* USB Host */
193 GPIO0_2_USBH_PEN,
194 GPIO1_2_USBH_PWR,
195
196 /* I2C */
197 GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
198 GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
199
200 /* SPI */
201 GPIO34_GPIO, /* SPDIF_CS */
202 GPIO96_GPIO, /* MCLK_CS */
203 GPIO125_GPIO, /* ACCEL_CS */
204
205 /* MMC */
206 GPIO3_MMC1_DAT0,
207 GPIO4_MMC1_DAT1,
208 GPIO5_MMC1_DAT2,
209 GPIO6_MMC1_DAT3,
210 GPIO7_MMC1_CLK,
211 GPIO8_MMC1_CMD,
212
213 /* Ethernet */
214 GPIO1_nCS2, /* CS */
215 GPIO40_GPIO | MFP_PULL_HIGH, /* IRQ */
216
217 /* SSP for I2S */
218 GPIO85_SSP1_SCLK,
219 GPIO89_SSP1_EXTCLK,
220 GPIO86_SSP1_FRM,
221 GPIO87_SSP1_TXD,
222 GPIO88_SSP1_RXD,
223 GPIO90_SSP1_SYSCLK,
224
225 /* SSP2 for S/PDIF */
226 GPIO25_SSP2_SCLK,
227 GPIO26_SSP2_FRM,
228 GPIO27_SSP2_TXD,
229 GPIO29_SSP2_EXTCLK,
230
231 /* LEDs */
232 GPIO35_GPIO | MFP_LPM_PULL_LOW,
233 GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
234 };
235
236 static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
237 /* UART1 */
238 GPIO77_UART1_RXD,
239 GPIO78_UART1_TXD,
240 GPIO79_UART1_CTS,
241 GPIO81_UART1_DSR,
242 GPIO83_UART1_DTR,
243 GPIO84_UART1_RTS,
244
245 /* UART3 */
246 GPIO110_UART3_RXD,
247
248 /* USB Host */
249 GPIO0_2_USBH_PEN,
250 GPIO1_2_USBH_PWR,
251
252 /* I2C */
253 GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
254 GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
255
256 /* SPI */
257 GPIO34_GPIO, /* SPDIF_CS */
258 GPIO96_GPIO, /* MCLK_CS */
259 GPIO125_GPIO, /* ACCEL_CS */
260
261 /* MMC */
262 GPIO3_MMC1_DAT0,
263 GPIO4_MMC1_DAT1,
264 GPIO5_MMC1_DAT2,
265 GPIO6_MMC1_DAT3,
266 GPIO7_MMC1_CLK,
267 GPIO8_MMC1_CMD,
268
269 /* Ethernet */
270 GPIO1_nCS2, /* CS */
271 GPIO40_GPIO | MFP_PULL_HIGH, /* IRQ */
272
273 /* SSP for I2S */
274 GPIO85_SSP1_SCLK,
275 GPIO89_SSP1_EXTCLK,
276 GPIO86_SSP1_FRM,
277 GPIO87_SSP1_TXD,
278 GPIO88_SSP1_RXD,
279 GPIO90_SSP1_SYSCLK,
280
281 /* LEDs */
282 GPIO35_GPIO | MFP_LPM_PULL_LOW,
283 GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
284 };
285
286 /*
287 * SMSC LAN9220 Ethernet
288 */
289
290 static struct resource smc91x_resources[] = {
291 {
292 .start = PXA3xx_CS2_PHYS,
293 .end = PXA3xx_CS2_PHYS + 0xfffff,
294 .flags = IORESOURCE_MEM,
295 },
296 {
297 .start = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
298 .end = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
299 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
300 }
301 };
302
303 static struct smsc911x_platform_config raumfeld_smsc911x_config = {
304 .phy_interface = PHY_INTERFACE_MODE_MII,
305 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
306 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
307 .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
308 };
309
310 static struct platform_device smc91x_device = {
311 .name = "smsc911x",
312 .id = -1,
313 .num_resources = ARRAY_SIZE(smc91x_resources),
314 .resource = smc91x_resources,
315 .dev = {
316 .platform_data = &raumfeld_smsc911x_config,
317 }
318 };
319
320 /**
321 * NAND
322 */
323
324 static struct mtd_partition raumfeld_nand_partitions[] = {
325 {
326 .name = "Bootloader",
327 .offset = 0,
328 .size = 0xa0000,
329 .mask_flags = MTD_WRITEABLE, /* force read-only */
330 },
331 {
332 .name = "BootloaderEnvironment",
333 .offset = 0xa0000,
334 .size = 0x20000,
335 },
336 {
337 .name = "BootloaderSplashScreen",
338 .offset = 0xc0000,
339 .size = 0x60000,
340 },
341 {
342 .name = "UBI",
343 .offset = 0x120000,
344 .size = MTDPART_SIZ_FULL,
345 },
346 };
347
348 static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
349 .keep_config = 1,
350 .parts = raumfeld_nand_partitions,
351 .nr_parts = ARRAY_SIZE(raumfeld_nand_partitions),
352 };
353
354 /**
355 * USB (OHCI) support
356 */
357
358 static struct pxaohci_platform_data raumfeld_ohci_info = {
359 .port_mode = PMM_GLOBAL_MODE,
360 .flags = ENABLE_PORT1,
361 };
362
363 /**
364 * Rotary encoder input device
365 */
366
367 static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
368 .dev_id = "rotary-encoder.0",
369 .table = {
370 GPIO_LOOKUP_IDX("gpio-0",
371 GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
372 GPIO_LOOKUP_IDX("gpio-0",
373 GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
374 { },
375 },
376 };
377
378 static const struct property_entry raumfeld_rotary_properties[] __initconst = {
379 PROPERTY_ENTRY_U32("rotary-encoder,steps-per-period", 24),
380 PROPERTY_ENTRY_U32("linux,axis", REL_X),
381 PROPERTY_ENTRY_U32("rotary-encoder,relative_axis", 1),
382 { },
383 };
384
385 static struct platform_device rotary_encoder_device = {
386 .name = "rotary-encoder",
387 .id = 0,
388 };
389
390 /**
391 * GPIO buttons
392 */
393
394 static struct gpio_keys_button gpio_keys_button[] = {
395 {
396 .code = KEY_F1,
397 .type = EV_KEY,
398 .gpio = GPIO_KEY1,
399 .active_low = 1,
400 .wakeup = 0,
401 .debounce_interval = 5, /* ms */
402 .desc = "Button 1",
403 },
404 {
405 .code = KEY_F2,
406 .type = EV_KEY,
407 .gpio = GPIO_KEY2,
408 .active_low = 1,
409 .wakeup = 0,
410 .debounce_interval = 5, /* ms */
411 .desc = "Button 2",
412 },
413 {
414 .code = KEY_F3,
415 .type = EV_KEY,
416 .gpio = GPIO_KEY3,
417 .active_low = 1,
418 .wakeup = 0,
419 .debounce_interval = 5, /* ms */
420 .desc = "Button 3",
421 },
422 {
423 .code = KEY_F4,
424 .type = EV_KEY,
425 .gpio = GPIO_RESCUE_BOOT,
426 .active_low = 0,
427 .wakeup = 0,
428 .debounce_interval = 5, /* ms */
429 .desc = "rescue boot button",
430 },
431 {
432 .code = KEY_F5,
433 .type = EV_KEY,
434 .gpio = GPIO_DOCK_DETECT,
435 .active_low = 1,
436 .wakeup = 0,
437 .debounce_interval = 5, /* ms */
438 .desc = "dock detect",
439 },
440 {
441 .code = KEY_F6,
442 .type = EV_KEY,
443 .gpio = GPIO_ON_OFF,
444 .active_low = 0,
445 .wakeup = 0,
446 .debounce_interval = 5, /* ms */
447 .desc = "on_off button",
448 },
449 };
450
451 static struct gpio_keys_platform_data gpio_keys_platform_data = {
452 .buttons = gpio_keys_button,
453 .nbuttons = ARRAY_SIZE(gpio_keys_button),
454 .rep = 0,
455 };
456
457 static struct platform_device raumfeld_gpio_keys_device = {
458 .name = "gpio-keys",
459 .id = -1,
460 .dev = {
461 .platform_data = &gpio_keys_platform_data,
462 }
463 };
464
465 /**
466 * GPIO LEDs
467 */
468
469 static struct gpio_led raumfeld_leds[] = {
470 {
471 .name = "raumfeld:1",
472 .gpio = GPIO_LED1,
473 .active_low = 1,
474 .default_state = LEDS_GPIO_DEFSTATE_ON,
475 },
476 {
477 .name = "raumfeld:2",
478 .gpio = GPIO_LED2,
479 .active_low = 0,
480 .default_state = LEDS_GPIO_DEFSTATE_OFF,
481 }
482 };
483
484 static struct gpio_led_platform_data raumfeld_led_platform_data = {
485 .leds = raumfeld_leds,
486 .num_leds = ARRAY_SIZE(raumfeld_leds),
487 };
488
489 static struct platform_device raumfeld_led_device = {
490 .name = "leds-gpio",
491 .id = -1,
492 .dev = {
493 .platform_data = &raumfeld_led_platform_data,
494 },
495 };
496
497 /**
498 * One-wire (W1 bus) support
499 */
500
w1_enable_external_pullup(int enable)501 static void w1_enable_external_pullup(int enable)
502 {
503 gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
504 msleep(100);
505 }
506
507 static struct gpiod_lookup_table raumfeld_w1_gpiod_table = {
508 .dev_id = "w1-gpio",
509 .table = {
510 GPIO_LOOKUP_IDX("gpio-pxa", GPIO_ONE_WIRE, NULL, 0,
511 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
512 },
513 };
514
515 static struct w1_gpio_platform_data w1_gpio_platform_data = {
516 .enable_external_pullup = w1_enable_external_pullup,
517 };
518
519 static struct platform_device raumfeld_w1_gpio_device = {
520 .name = "w1-gpio",
521 .dev = {
522 .platform_data = &w1_gpio_platform_data
523 }
524 };
525
raumfeld_w1_init(void)526 static void __init raumfeld_w1_init(void)
527 {
528 int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
529 "W1 external pullup enable");
530
531 if (ret < 0)
532 pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
533 else
534 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
535
536 gpiod_add_lookup_table(&raumfeld_w1_gpiod_table);
537 platform_device_register(&raumfeld_w1_gpio_device);
538 }
539
540 /**
541 * Framebuffer device
542 */
543
544 static struct pwm_lookup raumfeld_pwm_lookup[] = {
545 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
546 PWM_POLARITY_NORMAL),
547 };
548
549 /* PWM controlled backlight */
550 static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
551 .max_brightness = 100,
552 .dft_brightness = 100,
553 .enable_gpio = -1,
554 };
555
556 static struct platform_device raumfeld_pwm_backlight_device = {
557 .name = "pwm-backlight",
558 .dev = {
559 .parent = &pxa27x_device_pwm0.dev,
560 .platform_data = &raumfeld_pwm_backlight_data,
561 }
562 };
563
564 /* LT3593 controlled backlight */
565 static struct gpio_led raumfeld_lt3593_led = {
566 .name = "backlight",
567 .gpio = mfp_to_gpio(MFP_PIN_GPIO17),
568 .default_state = LEDS_GPIO_DEFSTATE_ON,
569 };
570
571 static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
572 .leds = &raumfeld_lt3593_led,
573 .num_leds = 1,
574 };
575
576 static struct platform_device raumfeld_lt3593_device = {
577 .name = "leds-lt3593",
578 .id = -1,
579 .dev = {
580 .platform_data = &raumfeld_lt3593_platform_data,
581 },
582 };
583
584 static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
585 .pixclock = 111000,
586 .xres = 480,
587 .yres = 272,
588 .bpp = 16,
589 .hsync_len = 41,
590 .left_margin = 2,
591 .right_margin = 1,
592 .vsync_len = 10,
593 .upper_margin = 3,
594 .lower_margin = 1,
595 .sync = 0,
596 };
597
598 static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
599 .modes = &sharp_lq043t3dx02_mode,
600 .num_modes = 1,
601 .video_mem_size = 0x400000,
602 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
603 #ifdef CONFIG_PXA3XX_GCU
604 .acceleration_enabled = 1,
605 #endif
606 };
607
raumfeld_lcd_init(void)608 static void __init raumfeld_lcd_init(void)
609 {
610 int ret;
611
612 ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
613 if (ret < 0)
614 pr_warn("Unable to request GPIO_TFT_VA_EN\n");
615 else
616 gpio_direction_output(GPIO_TFT_VA_EN, 1);
617
618 msleep(100);
619
620 ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
621 if (ret < 0)
622 pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
623 else
624 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
625
626 /* Hardware revision 2 has the backlight regulator controlled
627 * by an LT3593, earlier and later devices use PWM for that. */
628 if ((system_rev & 0xff) == 2) {
629 platform_device_register(&raumfeld_lt3593_device);
630 } else {
631 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
632 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
633 pwm_add_table(raumfeld_pwm_lookup,
634 ARRAY_SIZE(raumfeld_pwm_lookup));
635 platform_device_register(&raumfeld_pwm_backlight_device);
636 }
637
638 pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
639 platform_device_register(&pxa3xx_device_gcu);
640 }
641
642 /**
643 * SPI devices
644 */
645
646 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
647 .num_chipselect = 3,
648 };
649
650 static struct platform_device raumfeld_spi_device = {
651 .name = "spi_gpio",
652 .id = 0,
653 .dev = {
654 .platform_data = &raumfeld_spi_platform_data,
655 }
656 };
657
658 static struct gpiod_lookup_table raumfeld_spi_gpiod_table = {
659 .dev_id = "spi_gpio",
660 .table = {
661 GPIO_LOOKUP("gpio-0", GPIO_SPI_CLK,
662 "sck", GPIO_ACTIVE_HIGH),
663 GPIO_LOOKUP("gpio-0", GPIO_SPI_MOSI,
664 "mosi", GPIO_ACTIVE_HIGH),
665 GPIO_LOOKUP("gpio-0", GPIO_SPI_MISO,
666 "miso", GPIO_ACTIVE_HIGH),
667 GPIO_LOOKUP_IDX("gpio-0", GPIO_SPDIF_CS,
668 "cs", 0, GPIO_ACTIVE_HIGH),
669 GPIO_LOOKUP_IDX("gpio-0", GPIO_ACCEL_CS,
670 "cs", 1, GPIO_ACTIVE_HIGH),
671 GPIO_LOOKUP_IDX("gpio-0", GPIO_MCLK_DAC_CS,
672 "cs", 2, GPIO_ACTIVE_HIGH),
673 { },
674 },
675 };
676
677 static struct lis3lv02d_platform_data lis3_pdata = {
678 .click_flags = LIS3_CLICK_SINGLE_X |
679 LIS3_CLICK_SINGLE_Y |
680 LIS3_CLICK_SINGLE_Z,
681 .irq_cfg = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
682 .wakeup_flags = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
683 LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
684 LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
685 .wakeup_thresh = 10,
686 .click_thresh_x = 10,
687 .click_thresh_y = 10,
688 .click_thresh_z = 10,
689 };
690
691 #define SPI_AK4104 \
692 { \
693 .modalias = "ak4104-codec", \
694 .max_speed_hz = 10000, \
695 .bus_num = 0, \
696 .chip_select = 0, \
697 }
698
699 #define SPI_LIS3 \
700 { \
701 .modalias = "lis3lv02d_spi", \
702 .max_speed_hz = 1000000, \
703 .bus_num = 0, \
704 .chip_select = 1, \
705 .platform_data = &lis3_pdata, \
706 .irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \
707 }
708
709 #define SPI_DAC7512 \
710 { \
711 .modalias = "dac7512", \
712 .max_speed_hz = 1000000, \
713 .bus_num = 0, \
714 .chip_select = 2, \
715 }
716
717 static struct spi_board_info connector_spi_devices[] __initdata = {
718 SPI_AK4104,
719 SPI_DAC7512,
720 };
721
722 static struct spi_board_info speaker_spi_devices[] __initdata = {
723 SPI_DAC7512,
724 };
725
726 static struct spi_board_info controller_spi_devices[] __initdata = {
727 SPI_LIS3,
728 };
729
730 /**
731 * MMC for Marvell Libertas 8688 via SDIO
732 */
733
raumfeld_mci_init(struct device * dev,irq_handler_t isr,void * data)734 static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
735 {
736 gpio_set_value(GPIO_W2W_RESET, 1);
737 gpio_set_value(GPIO_W2W_PDN, 1);
738
739 return 0;
740 }
741
raumfeld_mci_exit(struct device * dev,void * data)742 static void raumfeld_mci_exit(struct device *dev, void *data)
743 {
744 gpio_set_value(GPIO_W2W_RESET, 0);
745 gpio_set_value(GPIO_W2W_PDN, 0);
746 }
747
748 static struct pxamci_platform_data raumfeld_mci_platform_data = {
749 .init = raumfeld_mci_init,
750 .exit = raumfeld_mci_exit,
751 .detect_delay_ms = 200,
752 .gpio_card_detect = -1,
753 .gpio_card_ro = -1,
754 .gpio_power = -1,
755 };
756
757 /*
758 * External power / charge logic
759 */
760
power_supply_init(struct device * dev)761 static int power_supply_init(struct device *dev)
762 {
763 return 0;
764 }
765
power_supply_exit(struct device * dev)766 static void power_supply_exit(struct device *dev)
767 {
768 }
769
raumfeld_is_ac_online(void)770 static int raumfeld_is_ac_online(void)
771 {
772 return !gpio_get_value(GPIO_CHARGE_DC_OK);
773 }
774
raumfeld_is_usb_online(void)775 static int raumfeld_is_usb_online(void)
776 {
777 return 0;
778 }
779
780 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
781
raumfeld_power_signal_charged(void)782 static void raumfeld_power_signal_charged(void)
783 {
784 struct power_supply *psy =
785 power_supply_get_by_name(raumfeld_power_supplicants[0]);
786
787 if (psy) {
788 power_supply_set_battery_charged(psy);
789 power_supply_put(psy);
790 }
791 }
792
raumfeld_power_resume(void)793 static int raumfeld_power_resume(void)
794 {
795 /* check if GPIO_CHARGE_DONE went low while we were sleeping */
796 if (!gpio_get_value(GPIO_CHARGE_DONE))
797 raumfeld_power_signal_charged();
798
799 return 0;
800 }
801
802 static struct pda_power_pdata power_supply_info = {
803 .init = power_supply_init,
804 .is_ac_online = raumfeld_is_ac_online,
805 .is_usb_online = raumfeld_is_usb_online,
806 .exit = power_supply_exit,
807 .supplied_to = raumfeld_power_supplicants,
808 .num_supplicants = ARRAY_SIZE(raumfeld_power_supplicants),
809 .resume = raumfeld_power_resume,
810 };
811
812 static struct resource power_supply_resources[] = {
813 {
814 .name = "ac",
815 .flags = IORESOURCE_IRQ |
816 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
817 .start = GPIO_CHARGE_DC_OK,
818 .end = GPIO_CHARGE_DC_OK,
819 },
820 };
821
charge_done_irq(int irq,void * dev_id)822 static irqreturn_t charge_done_irq(int irq, void *dev_id)
823 {
824 raumfeld_power_signal_charged();
825 return IRQ_HANDLED;
826 }
827
828 static struct platform_device raumfeld_power_supply = {
829 .name = "pda-power",
830 .id = -1,
831 .dev = {
832 .platform_data = &power_supply_info,
833 },
834 .resource = power_supply_resources,
835 .num_resources = ARRAY_SIZE(power_supply_resources),
836 };
837
raumfeld_power_init(void)838 static void __init raumfeld_power_init(void)
839 {
840 int ret;
841
842 /* Set PEN2 high to enable maximum charge current */
843 ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
844 if (ret < 0)
845 pr_warn("Unable to request GPIO_CHRG_PEN2\n");
846 else
847 gpio_direction_output(GPIO_CHRG_PEN2, 1);
848
849 ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
850 if (ret < 0)
851 pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
852
853 ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
854 if (ret < 0)
855 pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
856 else
857 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
858
859 power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
860 power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
861
862 ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
863 &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
864 "charge_done", NULL);
865
866 if (ret < 0)
867 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
868 GPIO_CHARGE_DONE);
869 else
870 platform_device_register(&raumfeld_power_supply);
871 }
872
873 /* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
874
875 static struct regulator_consumer_supply audio_va_consumer_supply =
876 REGULATOR_SUPPLY("va", "0-0048");
877
878 static struct regulator_init_data audio_va_initdata = {
879 .consumer_supplies = &audio_va_consumer_supply,
880 .num_consumer_supplies = 1,
881 .constraints = {
882 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
883 },
884 };
885
886 static struct fixed_voltage_config audio_va_config = {
887 .supply_name = "audio_va",
888 .microvolts = 5000000,
889 .gpio = GPIO_AUDIO_VA_ENABLE,
890 .enable_high = 1,
891 .enabled_at_boot = 0,
892 .init_data = &audio_va_initdata,
893 };
894
895 static struct platform_device audio_va_device = {
896 .name = "reg-fixed-voltage",
897 .id = 0,
898 .dev = {
899 .platform_data = &audio_va_config,
900 },
901 };
902
903 /* Dummy supplies for Codec's VD/VLC */
904
905 static struct regulator_consumer_supply audio_dummy_supplies[] = {
906 REGULATOR_SUPPLY("vd", "0-0048"),
907 REGULATOR_SUPPLY("vlc", "0-0048"),
908 };
909
910 static struct regulator_init_data audio_dummy_initdata = {
911 .consumer_supplies = audio_dummy_supplies,
912 .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
913 .constraints = {
914 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
915 },
916 };
917
918 static struct fixed_voltage_config audio_dummy_config = {
919 .supply_name = "audio_vd",
920 .microvolts = 3300000,
921 .gpio = -1,
922 .init_data = &audio_dummy_initdata,
923 };
924
925 static struct platform_device audio_supply_dummy_device = {
926 .name = "reg-fixed-voltage",
927 .id = 1,
928 .dev = {
929 .platform_data = &audio_dummy_config,
930 },
931 };
932
933 static struct platform_device *audio_regulator_devices[] = {
934 &audio_va_device,
935 &audio_supply_dummy_device,
936 };
937
938 /**
939 * Regulator support via MAX8660
940 */
941
942 static struct regulator_consumer_supply vcc_mmc_supply =
943 REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
944
945 static struct regulator_init_data vcc_mmc_init_data = {
946 .constraints = {
947 .min_uV = 3300000,
948 .max_uV = 3300000,
949 .valid_modes_mask = REGULATOR_MODE_NORMAL,
950 .valid_ops_mask = REGULATOR_CHANGE_STATUS |
951 REGULATOR_CHANGE_VOLTAGE |
952 REGULATOR_CHANGE_MODE,
953 },
954 .consumer_supplies = &vcc_mmc_supply,
955 .num_consumer_supplies = 1,
956 };
957
958 static struct max8660_subdev_data max8660_v6_subdev_data = {
959 .id = MAX8660_V6,
960 .name = "vmmc",
961 .platform_data = &vcc_mmc_init_data,
962 };
963
964 static struct max8660_platform_data max8660_pdata = {
965 .subdevs = &max8660_v6_subdev_data,
966 .num_subdevs = 1,
967 };
968
969 /**
970 * I2C devices
971 */
972
973 static struct i2c_board_info raumfeld_pwri2c_board_info = {
974 .type = "max8660",
975 .addr = 0x34,
976 .platform_data = &max8660_pdata,
977 };
978
979 static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
980 .type = "cs4270",
981 .addr = 0x48,
982 };
983
984 static struct gpiod_lookup_table raumfeld_controller_gpios_table = {
985 .dev_id = "0-000a",
986 .table = {
987 GPIO_LOOKUP("gpio-pxa",
988 GPIO_TOUCH_IRQ, "attn", GPIO_ACTIVE_HIGH),
989 { },
990 },
991 };
992
993 static const struct resource raumfeld_controller_resources[] __initconst = {
994 {
995 .start = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
996 .end = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
997 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
998 },
999 };
1000
1001 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
1002 .type = "eeti_ts",
1003 .addr = 0x0a,
1004 .resources = raumfeld_controller_resources,
1005 .num_resources = ARRAY_SIZE(raumfeld_controller_resources),
1006 };
1007
1008 static struct platform_device *raumfeld_common_devices[] = {
1009 &raumfeld_gpio_keys_device,
1010 &raumfeld_led_device,
1011 &raumfeld_spi_device,
1012 };
1013
raumfeld_audio_init(void)1014 static void __init raumfeld_audio_init(void)
1015 {
1016 int ret;
1017
1018 ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
1019 if (ret < 0)
1020 pr_warn("unable to request GPIO_CODEC_RESET\n");
1021 else
1022 gpio_direction_output(GPIO_CODEC_RESET, 1);
1023
1024 ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
1025 if (ret < 0)
1026 pr_warn("unable to request GPIO_SPDIF_RESET\n");
1027 else
1028 gpio_direction_output(GPIO_SPDIF_RESET, 1);
1029
1030 ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
1031 if (ret < 0)
1032 pr_warn("unable to request GPIO_MCLK_RESET\n");
1033 else
1034 gpio_direction_output(GPIO_MCLK_RESET, 1);
1035
1036 platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
1037 }
1038
raumfeld_common_init(void)1039 static void __init raumfeld_common_init(void)
1040 {
1041 int ret;
1042
1043 /* The on/off button polarity has changed after revision 1 */
1044 if ((system_rev & 0xff) > 1) {
1045 int i;
1046
1047 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1048 if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1049 gpio_keys_button[i].active_low = 1;
1050 }
1051
1052 enable_irq_wake(IRQ_WAKEUP0);
1053
1054 pxa3xx_set_nand_info(&raumfeld_nand_info);
1055 pxa3xx_set_i2c_power_info(NULL);
1056 pxa_set_ohci_info(&raumfeld_ohci_info);
1057 pxa_set_mci_info(&raumfeld_mci_platform_data);
1058 pxa_set_i2c_info(NULL);
1059 pxa_set_ffuart_info(NULL);
1060
1061 ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1062 if (ret < 0)
1063 pr_warn("Unable to request GPIO_W2W_RESET\n");
1064 else
1065 gpio_direction_output(GPIO_W2W_RESET, 0);
1066
1067 ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1068 if (ret < 0)
1069 pr_warn("Unable to request GPIO_W2W_PDN\n");
1070 else
1071 gpio_direction_output(GPIO_W2W_PDN, 0);
1072
1073 /* this can be used to switch off the device */
1074 ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1075 if (ret < 0)
1076 pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1077 else
1078 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1079
1080 gpiod_add_lookup_table(&raumfeld_spi_gpiod_table);
1081 platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1082 i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1083 }
1084
raumfeld_controller_init(void)1085 static void __init __maybe_unused raumfeld_controller_init(void)
1086 {
1087 int ret;
1088
1089 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1090
1091 gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1092 device_add_properties(&rotary_encoder_device.dev,
1093 raumfeld_rotary_properties);
1094 platform_device_register(&rotary_encoder_device);
1095
1096 spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1097
1098 gpiod_add_lookup_table(&raumfeld_controller_gpios_table);
1099 i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1100
1101 ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1102 if (ret < 0)
1103 pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
1104 else
1105 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1106
1107 raumfeld_common_init();
1108 raumfeld_power_init();
1109 raumfeld_lcd_init();
1110 raumfeld_w1_init();
1111 }
1112
raumfeld_connector_init(void)1113 static void __init __maybe_unused raumfeld_connector_init(void)
1114 {
1115 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1116 spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1117 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1118
1119 platform_device_register(&smc91x_device);
1120
1121 raumfeld_audio_init();
1122 raumfeld_common_init();
1123 }
1124
raumfeld_speaker_init(void)1125 static void __init __maybe_unused raumfeld_speaker_init(void)
1126 {
1127 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1128 spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1129 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1130
1131 platform_device_register(&smc91x_device);
1132
1133 gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1134 device_add_properties(&rotary_encoder_device.dev,
1135 raumfeld_rotary_properties);
1136 platform_device_register(&rotary_encoder_device);
1137
1138 raumfeld_audio_init();
1139 raumfeld_common_init();
1140 }
1141
1142 /* physical memory regions */
1143 #define RAUMFELD_SDRAM_BASE 0xa0000000 /* SDRAM region */
1144
1145 #ifdef CONFIG_MACH_RAUMFELD_RC
1146 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1147 .atag_offset = 0x100,
1148 .init_machine = raumfeld_controller_init,
1149 .map_io = pxa3xx_map_io,
1150 .nr_irqs = PXA_NR_IRQS,
1151 .init_irq = pxa3xx_init_irq,
1152 .handle_irq = pxa3xx_handle_irq,
1153 .init_time = pxa_timer_init,
1154 .restart = pxa_restart,
1155 MACHINE_END
1156 #endif
1157
1158 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1159 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1160 .atag_offset = 0x100,
1161 .init_machine = raumfeld_connector_init,
1162 .map_io = pxa3xx_map_io,
1163 .nr_irqs = PXA_NR_IRQS,
1164 .init_irq = pxa3xx_init_irq,
1165 .handle_irq = pxa3xx_handle_irq,
1166 .init_time = pxa_timer_init,
1167 .restart = pxa_restart,
1168 MACHINE_END
1169 #endif
1170
1171 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1172 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1173 .atag_offset = 0x100,
1174 .init_machine = raumfeld_speaker_init,
1175 .map_io = pxa3xx_map_io,
1176 .nr_irqs = PXA_NR_IRQS,
1177 .init_irq = pxa3xx_init_irq,
1178 .handle_irq = pxa3xx_handle_irq,
1179 .init_time = pxa_timer_init,
1180 .restart = pxa_restart,
1181 MACHINE_END
1182 #endif
1183
