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/i2c/pxa-i2c.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 .enable_arbiter = 1,
350 .keep_config = 1,
351 .num_cs = 1,
352 .parts[0] = raumfeld_nand_partitions,
353 .nr_parts[0] = ARRAY_SIZE(raumfeld_nand_partitions),
354 };
355
356 /**
357 * USB (OHCI) support
358 */
359
360 static struct pxaohci_platform_data raumfeld_ohci_info = {
361 .port_mode = PMM_GLOBAL_MODE,
362 .flags = ENABLE_PORT1,
363 };
364
365 /**
366 * Rotary encoder input device
367 */
368
369 static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
370 .dev_id = "rotary-encoder.0",
371 .table = {
372 GPIO_LOOKUP_IDX("gpio-0",
373 GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
374 GPIO_LOOKUP_IDX("gpio-0",
375 GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
376 { },
377 },
378 };
379
380 static const struct property_entry raumfeld_rotary_properties[] __initconst = {
381 PROPERTY_ENTRY_INTEGER("rotary-encoder,steps-per-period", u32, 24),
382 PROPERTY_ENTRY_INTEGER("linux,axis", u32, REL_X),
383 PROPERTY_ENTRY_INTEGER("rotary-encoder,relative_axis", u32, 1),
384 { },
385 };
386
387 static struct platform_device rotary_encoder_device = {
388 .name = "rotary-encoder",
389 .id = 0,
390 };
391
392 /**
393 * GPIO buttons
394 */
395
396 static struct gpio_keys_button gpio_keys_button[] = {
397 {
398 .code = KEY_F1,
399 .type = EV_KEY,
400 .gpio = GPIO_KEY1,
401 .active_low = 1,
402 .wakeup = 0,
403 .debounce_interval = 5, /* ms */
404 .desc = "Button 1",
405 },
406 {
407 .code = KEY_F2,
408 .type = EV_KEY,
409 .gpio = GPIO_KEY2,
410 .active_low = 1,
411 .wakeup = 0,
412 .debounce_interval = 5, /* ms */
413 .desc = "Button 2",
414 },
415 {
416 .code = KEY_F3,
417 .type = EV_KEY,
418 .gpio = GPIO_KEY3,
419 .active_low = 1,
420 .wakeup = 0,
421 .debounce_interval = 5, /* ms */
422 .desc = "Button 3",
423 },
424 {
425 .code = KEY_F4,
426 .type = EV_KEY,
427 .gpio = GPIO_RESCUE_BOOT,
428 .active_low = 0,
429 .wakeup = 0,
430 .debounce_interval = 5, /* ms */
431 .desc = "rescue boot button",
432 },
433 {
434 .code = KEY_F5,
435 .type = EV_KEY,
436 .gpio = GPIO_DOCK_DETECT,
437 .active_low = 1,
438 .wakeup = 0,
439 .debounce_interval = 5, /* ms */
440 .desc = "dock detect",
441 },
442 {
443 .code = KEY_F6,
444 .type = EV_KEY,
445 .gpio = GPIO_ON_OFF,
446 .active_low = 0,
447 .wakeup = 0,
448 .debounce_interval = 5, /* ms */
449 .desc = "on_off button",
450 },
451 };
452
453 static struct gpio_keys_platform_data gpio_keys_platform_data = {
454 .buttons = gpio_keys_button,
455 .nbuttons = ARRAY_SIZE(gpio_keys_button),
456 .rep = 0,
457 };
458
459 static struct platform_device raumfeld_gpio_keys_device = {
460 .name = "gpio-keys",
461 .id = -1,
462 .dev = {
463 .platform_data = &gpio_keys_platform_data,
464 }
465 };
466
467 /**
468 * GPIO LEDs
469 */
470
471 static struct gpio_led raumfeld_leds[] = {
472 {
473 .name = "raumfeld:1",
474 .gpio = GPIO_LED1,
475 .active_low = 1,
476 .default_state = LEDS_GPIO_DEFSTATE_ON,
477 },
478 {
479 .name = "raumfeld:2",
480 .gpio = GPIO_LED2,
481 .active_low = 0,
482 .default_state = LEDS_GPIO_DEFSTATE_OFF,
483 }
484 };
485
486 static struct gpio_led_platform_data raumfeld_led_platform_data = {
487 .leds = raumfeld_leds,
488 .num_leds = ARRAY_SIZE(raumfeld_leds),
489 };
490
491 static struct platform_device raumfeld_led_device = {
492 .name = "leds-gpio",
493 .id = -1,
494 .dev = {
495 .platform_data = &raumfeld_led_platform_data,
496 },
497 };
498
499 /**
500 * One-wire (W1 bus) support
501 */
502
w1_enable_external_pullup(int enable)503 static void w1_enable_external_pullup(int enable)
504 {
505 gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
506 msleep(100);
507 }
508
509 static struct w1_gpio_platform_data w1_gpio_platform_data = {
510 .pin = GPIO_ONE_WIRE,
511 .is_open_drain = 0,
512 .enable_external_pullup = w1_enable_external_pullup,
513 .ext_pullup_enable_pin = -EINVAL,
514 };
515
516 static struct platform_device raumfeld_w1_gpio_device = {
517 .name = "w1-gpio",
518 .dev = {
519 .platform_data = &w1_gpio_platform_data
520 }
521 };
522
raumfeld_w1_init(void)523 static void __init raumfeld_w1_init(void)
524 {
525 int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
526 "W1 external pullup enable");
527
528 if (ret < 0)
529 pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
530 else
531 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
532
533 platform_device_register(&raumfeld_w1_gpio_device);
534 }
535
536 /**
537 * Framebuffer device
538 */
539
540 static struct pwm_lookup raumfeld_pwm_lookup[] = {
541 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
542 PWM_POLARITY_NORMAL),
543 };
544
545 /* PWM controlled backlight */
546 static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
547 .max_brightness = 100,
548 .dft_brightness = 100,
549 .enable_gpio = -1,
550 };
551
552 static struct platform_device raumfeld_pwm_backlight_device = {
553 .name = "pwm-backlight",
554 .dev = {
555 .parent = &pxa27x_device_pwm0.dev,
556 .platform_data = &raumfeld_pwm_backlight_data,
557 }
558 };
559
560 /* LT3593 controlled backlight */
561 static struct gpio_led raumfeld_lt3593_led = {
562 .name = "backlight",
563 .gpio = mfp_to_gpio(MFP_PIN_GPIO17),
564 .default_state = LEDS_GPIO_DEFSTATE_ON,
565 };
566
567 static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
568 .leds = &raumfeld_lt3593_led,
569 .num_leds = 1,
570 };
571
572 static struct platform_device raumfeld_lt3593_device = {
573 .name = "leds-lt3593",
574 .id = -1,
575 .dev = {
576 .platform_data = &raumfeld_lt3593_platform_data,
577 },
578 };
579
580 static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
581 .pixclock = 111000,
582 .xres = 480,
583 .yres = 272,
584 .bpp = 16,
585 .hsync_len = 41,
586 .left_margin = 2,
587 .right_margin = 1,
588 .vsync_len = 10,
589 .upper_margin = 3,
590 .lower_margin = 1,
591 .sync = 0,
592 };
593
594 static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
595 .modes = &sharp_lq043t3dx02_mode,
596 .num_modes = 1,
597 .video_mem_size = 0x400000,
598 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
599 #ifdef CONFIG_PXA3XX_GCU
600 .acceleration_enabled = 1,
601 #endif
602 };
603
raumfeld_lcd_init(void)604 static void __init raumfeld_lcd_init(void)
605 {
606 int ret;
607
608 ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
609 if (ret < 0)
610 pr_warn("Unable to request GPIO_TFT_VA_EN\n");
611 else
612 gpio_direction_output(GPIO_TFT_VA_EN, 1);
613
614 msleep(100);
615
616 ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
617 if (ret < 0)
618 pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
619 else
620 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
621
622 /* Hardware revision 2 has the backlight regulator controlled
623 * by an LT3593, earlier and later devices use PWM for that. */
624 if ((system_rev & 0xff) == 2) {
625 platform_device_register(&raumfeld_lt3593_device);
626 } else {
627 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
628 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
629 pwm_add_table(raumfeld_pwm_lookup,
630 ARRAY_SIZE(raumfeld_pwm_lookup));
631 platform_device_register(&raumfeld_pwm_backlight_device);
632 }
633
634 pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
635 platform_device_register(&pxa3xx_device_gcu);
636 }
637
638 /**
639 * SPI devices
640 */
641
642 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
643 .sck = GPIO_SPI_CLK,
644 .mosi = GPIO_SPI_MOSI,
645 .miso = GPIO_SPI_MISO,
646 .num_chipselect = 3,
647 };
648
649 static struct platform_device raumfeld_spi_device = {
650 .name = "spi_gpio",
651 .id = 0,
652 .dev = {
653 .platform_data = &raumfeld_spi_platform_data,
654 }
655 };
656
657 static struct lis3lv02d_platform_data lis3_pdata = {
658 .click_flags = LIS3_CLICK_SINGLE_X |
659 LIS3_CLICK_SINGLE_Y |
660 LIS3_CLICK_SINGLE_Z,
661 .irq_cfg = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
662 .wakeup_flags = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
663 LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
664 LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
665 .wakeup_thresh = 10,
666 .click_thresh_x = 10,
667 .click_thresh_y = 10,
668 .click_thresh_z = 10,
669 };
670
671 #define SPI_AK4104 \
672 { \
673 .modalias = "ak4104-codec", \
674 .max_speed_hz = 10000, \
675 .bus_num = 0, \
676 .chip_select = 0, \
677 .controller_data = (void *) GPIO_SPDIF_CS, \
678 }
679
680 #define SPI_LIS3 \
681 { \
682 .modalias = "lis3lv02d_spi", \
683 .max_speed_hz = 1000000, \
684 .bus_num = 0, \
685 .chip_select = 1, \
686 .controller_data = (void *) GPIO_ACCEL_CS, \
687 .platform_data = &lis3_pdata, \
688 .irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \
689 }
690
691 #define SPI_DAC7512 \
692 { \
693 .modalias = "dac7512", \
694 .max_speed_hz = 1000000, \
695 .bus_num = 0, \
696 .chip_select = 2, \
697 .controller_data = (void *) GPIO_MCLK_DAC_CS, \
698 }
699
700 static struct spi_board_info connector_spi_devices[] __initdata = {
701 SPI_AK4104,
702 SPI_DAC7512,
703 };
704
705 static struct spi_board_info speaker_spi_devices[] __initdata = {
706 SPI_DAC7512,
707 };
708
709 static struct spi_board_info controller_spi_devices[] __initdata = {
710 SPI_LIS3,
711 };
712
713 /**
714 * MMC for Marvell Libertas 8688 via SDIO
715 */
716
raumfeld_mci_init(struct device * dev,irq_handler_t isr,void * data)717 static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
718 {
719 gpio_set_value(GPIO_W2W_RESET, 1);
720 gpio_set_value(GPIO_W2W_PDN, 1);
721
722 return 0;
723 }
724
raumfeld_mci_exit(struct device * dev,void * data)725 static void raumfeld_mci_exit(struct device *dev, void *data)
726 {
727 gpio_set_value(GPIO_W2W_RESET, 0);
728 gpio_set_value(GPIO_W2W_PDN, 0);
729 }
730
731 static struct pxamci_platform_data raumfeld_mci_platform_data = {
732 .init = raumfeld_mci_init,
733 .exit = raumfeld_mci_exit,
734 .detect_delay_ms = 200,
735 .gpio_card_detect = -1,
736 .gpio_card_ro = -1,
737 .gpio_power = -1,
738 };
739
740 /*
741 * External power / charge logic
742 */
743
power_supply_init(struct device * dev)744 static int power_supply_init(struct device *dev)
745 {
746 return 0;
747 }
748
power_supply_exit(struct device * dev)749 static void power_supply_exit(struct device *dev)
750 {
751 }
752
raumfeld_is_ac_online(void)753 static int raumfeld_is_ac_online(void)
754 {
755 return !gpio_get_value(GPIO_CHARGE_DC_OK);
756 }
757
raumfeld_is_usb_online(void)758 static int raumfeld_is_usb_online(void)
759 {
760 return 0;
761 }
762
763 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
764
raumfeld_power_signal_charged(void)765 static void raumfeld_power_signal_charged(void)
766 {
767 struct power_supply *psy =
768 power_supply_get_by_name(raumfeld_power_supplicants[0]);
769
770 if (psy) {
771 power_supply_set_battery_charged(psy);
772 power_supply_put(psy);
773 }
774 }
775
raumfeld_power_resume(void)776 static int raumfeld_power_resume(void)
777 {
778 /* check if GPIO_CHARGE_DONE went low while we were sleeping */
779 if (!gpio_get_value(GPIO_CHARGE_DONE))
780 raumfeld_power_signal_charged();
781
782 return 0;
783 }
784
785 static struct pda_power_pdata power_supply_info = {
786 .init = power_supply_init,
787 .is_ac_online = raumfeld_is_ac_online,
788 .is_usb_online = raumfeld_is_usb_online,
789 .exit = power_supply_exit,
790 .supplied_to = raumfeld_power_supplicants,
791 .num_supplicants = ARRAY_SIZE(raumfeld_power_supplicants),
792 .resume = raumfeld_power_resume,
793 };
794
795 static struct resource power_supply_resources[] = {
796 {
797 .name = "ac",
798 .flags = IORESOURCE_IRQ |
799 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
800 .start = GPIO_CHARGE_DC_OK,
801 .end = GPIO_CHARGE_DC_OK,
802 },
803 };
804
charge_done_irq(int irq,void * dev_id)805 static irqreturn_t charge_done_irq(int irq, void *dev_id)
806 {
807 raumfeld_power_signal_charged();
808 return IRQ_HANDLED;
809 }
810
811 static struct platform_device raumfeld_power_supply = {
812 .name = "pda-power",
813 .id = -1,
814 .dev = {
815 .platform_data = &power_supply_info,
816 },
817 .resource = power_supply_resources,
818 .num_resources = ARRAY_SIZE(power_supply_resources),
819 };
820
raumfeld_power_init(void)821 static void __init raumfeld_power_init(void)
822 {
823 int ret;
824
825 /* Set PEN2 high to enable maximum charge current */
826 ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
827 if (ret < 0)
828 pr_warn("Unable to request GPIO_CHRG_PEN2\n");
829 else
830 gpio_direction_output(GPIO_CHRG_PEN2, 1);
831
832 ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
833 if (ret < 0)
834 pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
835
836 ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
837 if (ret < 0)
838 pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
839 else
840 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
841
842 power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
843 power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
844
845 ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
846 &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
847 "charge_done", NULL);
848
849 if (ret < 0)
850 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
851 GPIO_CHARGE_DONE);
852 else
853 platform_device_register(&raumfeld_power_supply);
854 }
855
856 /* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
857
858 static struct regulator_consumer_supply audio_va_consumer_supply =
859 REGULATOR_SUPPLY("va", "0-0048");
860
861 static struct regulator_init_data audio_va_initdata = {
862 .consumer_supplies = &audio_va_consumer_supply,
863 .num_consumer_supplies = 1,
864 .constraints = {
865 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
866 },
867 };
868
869 static struct fixed_voltage_config audio_va_config = {
870 .supply_name = "audio_va",
871 .microvolts = 5000000,
872 .gpio = GPIO_AUDIO_VA_ENABLE,
873 .enable_high = 1,
874 .enabled_at_boot = 0,
875 .init_data = &audio_va_initdata,
876 };
877
878 static struct platform_device audio_va_device = {
879 .name = "reg-fixed-voltage",
880 .id = 0,
881 .dev = {
882 .platform_data = &audio_va_config,
883 },
884 };
885
886 /* Dummy supplies for Codec's VD/VLC */
887
888 static struct regulator_consumer_supply audio_dummy_supplies[] = {
889 REGULATOR_SUPPLY("vd", "0-0048"),
890 REGULATOR_SUPPLY("vlc", "0-0048"),
891 };
892
893 static struct regulator_init_data audio_dummy_initdata = {
894 .consumer_supplies = audio_dummy_supplies,
895 .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
896 .constraints = {
897 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
898 },
899 };
900
901 static struct fixed_voltage_config audio_dummy_config = {
902 .supply_name = "audio_vd",
903 .microvolts = 3300000,
904 .gpio = -1,
905 .init_data = &audio_dummy_initdata,
906 };
907
908 static struct platform_device audio_supply_dummy_device = {
909 .name = "reg-fixed-voltage",
910 .id = 1,
911 .dev = {
912 .platform_data = &audio_dummy_config,
913 },
914 };
915
916 static struct platform_device *audio_regulator_devices[] = {
917 &audio_va_device,
918 &audio_supply_dummy_device,
919 };
920
921 /**
922 * Regulator support via MAX8660
923 */
924
925 static struct regulator_consumer_supply vcc_mmc_supply =
926 REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
927
928 static struct regulator_init_data vcc_mmc_init_data = {
929 .constraints = {
930 .min_uV = 3300000,
931 .max_uV = 3300000,
932 .valid_modes_mask = REGULATOR_MODE_NORMAL,
933 .valid_ops_mask = REGULATOR_CHANGE_STATUS |
934 REGULATOR_CHANGE_VOLTAGE |
935 REGULATOR_CHANGE_MODE,
936 },
937 .consumer_supplies = &vcc_mmc_supply,
938 .num_consumer_supplies = 1,
939 };
940
941 static struct max8660_subdev_data max8660_v6_subdev_data = {
942 .id = MAX8660_V6,
943 .name = "vmmc",
944 .platform_data = &vcc_mmc_init_data,
945 };
946
947 static struct max8660_platform_data max8660_pdata = {
948 .subdevs = &max8660_v6_subdev_data,
949 .num_subdevs = 1,
950 };
951
952 /**
953 * I2C devices
954 */
955
956 static struct i2c_board_info raumfeld_pwri2c_board_info = {
957 .type = "max8660",
958 .addr = 0x34,
959 .platform_data = &max8660_pdata,
960 };
961
962 static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
963 .type = "cs4270",
964 .addr = 0x48,
965 };
966
967 static struct gpiod_lookup_table raumfeld_controller_gpios_table = {
968 .dev_id = "0-000a",
969 .table = {
970 GPIO_LOOKUP("gpio-pxa",
971 GPIO_TOUCH_IRQ, "attn", GPIO_ACTIVE_HIGH),
972 { },
973 },
974 };
975
976 static const struct resource raumfeld_controller_resources[] __initconst = {
977 {
978 .start = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
979 .end = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
980 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
981 },
982 };
983
984 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
985 .type = "eeti_ts",
986 .addr = 0x0a,
987 .resources = raumfeld_controller_resources,
988 .num_resources = ARRAY_SIZE(raumfeld_controller_resources),
989 };
990
991 static struct platform_device *raumfeld_common_devices[] = {
992 &raumfeld_gpio_keys_device,
993 &raumfeld_led_device,
994 &raumfeld_spi_device,
995 };
996
raumfeld_audio_init(void)997 static void __init raumfeld_audio_init(void)
998 {
999 int ret;
1000
1001 ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
1002 if (ret < 0)
1003 pr_warn("unable to request GPIO_CODEC_RESET\n");
1004 else
1005 gpio_direction_output(GPIO_CODEC_RESET, 1);
1006
1007 ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
1008 if (ret < 0)
1009 pr_warn("unable to request GPIO_SPDIF_RESET\n");
1010 else
1011 gpio_direction_output(GPIO_SPDIF_RESET, 1);
1012
1013 ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
1014 if (ret < 0)
1015 pr_warn("unable to request GPIO_MCLK_RESET\n");
1016 else
1017 gpio_direction_output(GPIO_MCLK_RESET, 1);
1018
1019 platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
1020 }
1021
raumfeld_common_init(void)1022 static void __init raumfeld_common_init(void)
1023 {
1024 int ret;
1025
1026 /* The on/off button polarity has changed after revision 1 */
1027 if ((system_rev & 0xff) > 1) {
1028 int i;
1029
1030 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1031 if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1032 gpio_keys_button[i].active_low = 1;
1033 }
1034
1035 enable_irq_wake(IRQ_WAKEUP0);
1036
1037 pxa3xx_set_nand_info(&raumfeld_nand_info);
1038 pxa3xx_set_i2c_power_info(NULL);
1039 pxa_set_ohci_info(&raumfeld_ohci_info);
1040 pxa_set_mci_info(&raumfeld_mci_platform_data);
1041 pxa_set_i2c_info(NULL);
1042 pxa_set_ffuart_info(NULL);
1043
1044 ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1045 if (ret < 0)
1046 pr_warn("Unable to request GPIO_W2W_RESET\n");
1047 else
1048 gpio_direction_output(GPIO_W2W_RESET, 0);
1049
1050 ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1051 if (ret < 0)
1052 pr_warn("Unable to request GPIO_W2W_PDN\n");
1053 else
1054 gpio_direction_output(GPIO_W2W_PDN, 0);
1055
1056 /* this can be used to switch off the device */
1057 ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1058 if (ret < 0)
1059 pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1060 else
1061 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1062
1063 platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1064 i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1065 }
1066
raumfeld_controller_init(void)1067 static void __init __maybe_unused raumfeld_controller_init(void)
1068 {
1069 int ret;
1070
1071 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1072
1073 gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1074 device_add_properties(&rotary_encoder_device.dev,
1075 raumfeld_rotary_properties);
1076 platform_device_register(&rotary_encoder_device);
1077
1078 spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1079
1080 gpiod_add_lookup_table(&raumfeld_controller_gpios_table);
1081 i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1082
1083 ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1084 if (ret < 0)
1085 pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
1086 else
1087 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1088
1089 raumfeld_common_init();
1090 raumfeld_power_init();
1091 raumfeld_lcd_init();
1092 raumfeld_w1_init();
1093 }
1094
raumfeld_connector_init(void)1095 static void __init __maybe_unused raumfeld_connector_init(void)
1096 {
1097 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1098 spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1099 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1100
1101 platform_device_register(&smc91x_device);
1102
1103 raumfeld_audio_init();
1104 raumfeld_common_init();
1105 }
1106
raumfeld_speaker_init(void)1107 static void __init __maybe_unused raumfeld_speaker_init(void)
1108 {
1109 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1110 spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1111 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1112
1113 platform_device_register(&smc91x_device);
1114
1115 gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1116 device_add_properties(&rotary_encoder_device.dev,
1117 raumfeld_rotary_properties);
1118 platform_device_register(&rotary_encoder_device);
1119
1120 raumfeld_audio_init();
1121 raumfeld_common_init();
1122 }
1123
1124 /* physical memory regions */
1125 #define RAUMFELD_SDRAM_BASE 0xa0000000 /* SDRAM region */
1126
1127 #ifdef CONFIG_MACH_RAUMFELD_RC
1128 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1129 .atag_offset = 0x100,
1130 .init_machine = raumfeld_controller_init,
1131 .map_io = pxa3xx_map_io,
1132 .nr_irqs = PXA_NR_IRQS,
1133 .init_irq = pxa3xx_init_irq,
1134 .handle_irq = pxa3xx_handle_irq,
1135 .init_time = pxa_timer_init,
1136 .restart = pxa_restart,
1137 MACHINE_END
1138 #endif
1139
1140 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1141 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1142 .atag_offset = 0x100,
1143 .init_machine = raumfeld_connector_init,
1144 .map_io = pxa3xx_map_io,
1145 .nr_irqs = PXA_NR_IRQS,
1146 .init_irq = pxa3xx_init_irq,
1147 .handle_irq = pxa3xx_handle_irq,
1148 .init_time = pxa_timer_init,
1149 .restart = pxa_restart,
1150 MACHINE_END
1151 #endif
1152
1153 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1154 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1155 .atag_offset = 0x100,
1156 .init_machine = raumfeld_speaker_init,
1157 .map_io = pxa3xx_map_io,
1158 .nr_irqs = PXA_NR_IRQS,
1159 .init_irq = pxa3xx_init_irq,
1160 .handle_irq = pxa3xx_handle_irq,
1161 .init_time = pxa_timer_init,
1162 .restart = pxa_restart,
1163 MACHINE_END
1164 #endif
1165