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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/platform_device.h>
22#include <linux/interrupt.h>
23#include <linux/gpio.h>
24#include <linux/smsc911x.h>
25#include <linux/input.h>
26#include <linux/rotary_encoder.h>
27#include <linux/gpio_keys.h>
28#include <linux/input/eeti_ts.h>
29#include <linux/leds.h>
30#include <linux/w1-gpio.h>
31#include <linux/sched.h>
32#include <linux/pwm_backlight.h>
33#include <linux/i2c.h>
34#include <linux/i2c/pxa-i2c.h>
35#include <linux/spi/spi.h>
36#include <linux/spi/spi_gpio.h>
37#include <linux/lis3lv02d.h>
38#include <linux/pda_power.h>
39#include <linux/power_supply.h>
40#include <linux/regulator/max8660.h>
41#include <linux/regulator/machine.h>
42#include <linux/regulator/fixed.h>
43#include <linux/regulator/consumer.h>
44#include <linux/delay.h>
45
46#include <asm/system_info.h>
47
48#include <asm/mach-types.h>
49#include <asm/mach/arch.h>
50
51#include <mach/pxa300.h>
52#include <linux/platform_data/usb-ohci-pxa27x.h>
53#include <linux/platform_data/video-pxafb.h>
54#include <linux/platform_data/mmc-pxamci.h>
55#include <linux/platform_data/mtd-nand-pxa3xx.h>
56
57#include "generic.h"
58#include "devices.h"
59#include "clock.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 */
107static 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
180static 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
236static 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
290static 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
303static 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
310static 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
324static 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
348static 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
360static 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
369static struct rotary_encoder_platform_data raumfeld_rotary_encoder_info = {
370 .steps = 24,
371 .axis = REL_X,
372 .relative_axis = 1,
373 .gpio_a = GPIO_VOLENC_A,
374 .gpio_b = GPIO_VOLENC_B,
375 .inverted_a = 1,
376 .inverted_b = 0,
377};
378
379static struct platform_device rotary_encoder_device = {
380 .name = "rotary-encoder",
381 .id = 0,
382 .dev = {
383 .platform_data = &raumfeld_rotary_encoder_info,
384 }
385};
386
387/**
388 * GPIO buttons
389 */
390
391static struct gpio_keys_button gpio_keys_button[] = {
392 {
393 .code = KEY_F1,
394 .type = EV_KEY,
395 .gpio = GPIO_KEY1,
396 .active_low = 1,
397 .wakeup = 0,
398 .debounce_interval = 5, /* ms */
399 .desc = "Button 1",
400 },
401 {
402 .code = KEY_F2,
403 .type = EV_KEY,
404 .gpio = GPIO_KEY2,
405 .active_low = 1,
406 .wakeup = 0,
407 .debounce_interval = 5, /* ms */
408 .desc = "Button 2",
409 },
410 {
411 .code = KEY_F3,
412 .type = EV_KEY,
413 .gpio = GPIO_KEY3,
414 .active_low = 1,
415 .wakeup = 0,
416 .debounce_interval = 5, /* ms */
417 .desc = "Button 3",
418 },
419 {
420 .code = KEY_F4,
421 .type = EV_KEY,
422 .gpio = GPIO_RESCUE_BOOT,
423 .active_low = 0,
424 .wakeup = 0,
425 .debounce_interval = 5, /* ms */
426 .desc = "rescue boot button",
427 },
428 {
429 .code = KEY_F5,
430 .type = EV_KEY,
431 .gpio = GPIO_DOCK_DETECT,
432 .active_low = 1,
433 .wakeup = 0,
434 .debounce_interval = 5, /* ms */
435 .desc = "dock detect",
436 },
437 {
438 .code = KEY_F6,
439 .type = EV_KEY,
440 .gpio = GPIO_ON_OFF,
441 .active_low = 0,
442 .wakeup = 0,
443 .debounce_interval = 5, /* ms */
444 .desc = "on_off button",
445 },
446};
447
448static struct gpio_keys_platform_data gpio_keys_platform_data = {
449 .buttons = gpio_keys_button,
450 .nbuttons = ARRAY_SIZE(gpio_keys_button),
451 .rep = 0,
452};
453
454static struct platform_device raumfeld_gpio_keys_device = {
455 .name = "gpio-keys",
456 .id = -1,
457 .dev = {
458 .platform_data = &gpio_keys_platform_data,
459 }
460};
461
462/**
463 * GPIO LEDs
464 */
465
466static struct gpio_led raumfeld_leds[] = {
467 {
468 .name = "raumfeld:1",
469 .gpio = GPIO_LED1,
470 .active_low = 1,
471 .default_state = LEDS_GPIO_DEFSTATE_ON,
472 },
473 {
474 .name = "raumfeld:2",
475 .gpio = GPIO_LED2,
476 .active_low = 0,
477 .default_state = LEDS_GPIO_DEFSTATE_OFF,
478 }
479};
480
481static struct gpio_led_platform_data raumfeld_led_platform_data = {
482 .leds = raumfeld_leds,
483 .num_leds = ARRAY_SIZE(raumfeld_leds),
484};
485
486static struct platform_device raumfeld_led_device = {
487 .name = "leds-gpio",
488 .id = -1,
489 .dev = {
490 .platform_data = &raumfeld_led_platform_data,
491 },
492};
493
494/**
495 * One-wire (W1 bus) support
496 */
497
498static void w1_enable_external_pullup(int enable)
499{
500 gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
501 msleep(100);
502}
503
504static struct w1_gpio_platform_data w1_gpio_platform_data = {
505 .pin = GPIO_ONE_WIRE,
506 .is_open_drain = 0,
507 .enable_external_pullup = w1_enable_external_pullup,
508 .ext_pullup_enable_pin = -EINVAL,
509};
510
511struct platform_device raumfeld_w1_gpio_device = {
512 .name = "w1-gpio",
513 .dev = {
514 .platform_data = &w1_gpio_platform_data
515 }
516};
517
518static void __init raumfeld_w1_init(void)
519{
520 int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
521 "W1 external pullup enable");
522
523 if (ret < 0)
524 pr_warning("Unable to request GPIO_W1_PULLUP_ENABLE\n");
525 else
526 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
527
528 platform_device_register(&raumfeld_w1_gpio_device);
529}
530
531/**
532 * Framebuffer device
533 */
534
535/* PWM controlled backlight */
536static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
537 .pwm_id = 0,
538 .max_brightness = 100,
539 .dft_brightness = 100,
540 /* 10000 ns = 10 ms ^= 100 kHz */
541 .pwm_period_ns = 10000,
542 .enable_gpio = -1,
543};
544
545static struct platform_device raumfeld_pwm_backlight_device = {
546 .name = "pwm-backlight",
547 .dev = {
548 .parent = &pxa27x_device_pwm0.dev,
549 .platform_data = &raumfeld_pwm_backlight_data,
550 }
551};
552
553/* LT3593 controlled backlight */
554static struct gpio_led raumfeld_lt3593_led = {
555 .name = "backlight",
556 .gpio = mfp_to_gpio(MFP_PIN_GPIO17),
557 .default_state = LEDS_GPIO_DEFSTATE_ON,
558};
559
560static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
561 .leds = &raumfeld_lt3593_led,
562 .num_leds = 1,
563};
564
565static struct platform_device raumfeld_lt3593_device = {
566 .name = "leds-lt3593",
567 .id = -1,
568 .dev = {
569 .platform_data = &raumfeld_lt3593_platform_data,
570 },
571};
572
573static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
574 .pixclock = 111000,
575 .xres = 480,
576 .yres = 272,
577 .bpp = 16,
578 .hsync_len = 41,
579 .left_margin = 2,
580 .right_margin = 1,
581 .vsync_len = 10,
582 .upper_margin = 3,
583 .lower_margin = 1,
584 .sync = 0,
585};
586
587static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
588 .modes = &sharp_lq043t3dx02_mode,
589 .num_modes = 1,
590 .video_mem_size = 0x400000,
591 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
592#ifdef CONFIG_PXA3XX_GCU
593 .acceleration_enabled = 1,
594#endif
595};
596
597static void __init raumfeld_lcd_init(void)
598{
599 int ret;
600
601 ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
602 if (ret < 0)
603 pr_warning("Unable to request GPIO_TFT_VA_EN\n");
604 else
605 gpio_direction_output(GPIO_TFT_VA_EN, 1);
606
607 msleep(100);
608
609 ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
610 if (ret < 0)
611 pr_warning("Unable to request GPIO_DISPLAY_ENABLE\n");
612 else
613 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
614
615 /* Hardware revision 2 has the backlight regulator controlled
616 * by an LT3593, earlier and later devices use PWM for that. */
617 if ((system_rev & 0xff) == 2) {
618 platform_device_register(&raumfeld_lt3593_device);
619 } else {
620 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
621 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
622 platform_device_register(&raumfeld_pwm_backlight_device);
623 }
624
625 pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
626 platform_device_register(&pxa3xx_device_gcu);
627}
628
629/**
630 * SPI devices
631 */
632
633struct spi_gpio_platform_data raumfeld_spi_platform_data = {
634 .sck = GPIO_SPI_CLK,
635 .mosi = GPIO_SPI_MOSI,
636 .miso = GPIO_SPI_MISO,
637 .num_chipselect = 3,
638};
639
640static struct platform_device raumfeld_spi_device = {
641 .name = "spi_gpio",
642 .id = 0,
643 .dev = {
644 .platform_data = &raumfeld_spi_platform_data,
645 }
646};
647
648static struct lis3lv02d_platform_data lis3_pdata = {
649 .click_flags = LIS3_CLICK_SINGLE_X |
650 LIS3_CLICK_SINGLE_Y |
651 LIS3_CLICK_SINGLE_Z,
652 .irq_cfg = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
653 .wakeup_flags = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
654 LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
655 LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
656 .wakeup_thresh = 10,
657 .click_thresh_x = 10,
658 .click_thresh_y = 10,
659 .click_thresh_z = 10,
660};
661
662#define SPI_AK4104 \
663{ \
664 .modalias = "ak4104-codec", \
665 .max_speed_hz = 10000, \
666 .bus_num = 0, \
667 .chip_select = 0, \
668 .controller_data = (void *) GPIO_SPDIF_CS, \
669}
670
671#define SPI_LIS3 \
672{ \
673 .modalias = "lis3lv02d_spi", \
674 .max_speed_hz = 1000000, \
675 .bus_num = 0, \
676 .chip_select = 1, \
677 .controller_data = (void *) GPIO_ACCEL_CS, \
678 .platform_data = &lis3_pdata, \
679 .irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \
680}
681
682#define SPI_DAC7512 \
683{ \
684 .modalias = "dac7512", \
685 .max_speed_hz = 1000000, \
686 .bus_num = 0, \
687 .chip_select = 2, \
688 .controller_data = (void *) GPIO_MCLK_DAC_CS, \
689}
690
691static struct spi_board_info connector_spi_devices[] __initdata = {
692 SPI_AK4104,
693 SPI_DAC7512,
694};
695
696static struct spi_board_info speaker_spi_devices[] __initdata = {
697 SPI_DAC7512,
698};
699
700static struct spi_board_info controller_spi_devices[] __initdata = {
701 SPI_LIS3,
702};
703
704/**
705 * MMC for Marvell Libertas 8688 via SDIO
706 */
707
708static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
709{
710 gpio_set_value(GPIO_W2W_RESET, 1);
711 gpio_set_value(GPIO_W2W_PDN, 1);
712
713 return 0;
714}
715
716static void raumfeld_mci_exit(struct device *dev, void *data)
717{
718 gpio_set_value(GPIO_W2W_RESET, 0);
719 gpio_set_value(GPIO_W2W_PDN, 0);
720}
721
722static struct pxamci_platform_data raumfeld_mci_platform_data = {
723 .init = raumfeld_mci_init,
724 .exit = raumfeld_mci_exit,
725 .detect_delay_ms = 200,
726 .gpio_card_detect = -1,
727 .gpio_card_ro = -1,
728 .gpio_power = -1,
729};
730
731/*
732 * External power / charge logic
733 */
734
735static int power_supply_init(struct device *dev)
736{
737 return 0;
738}
739
740static void power_supply_exit(struct device *dev)
741{
742}
743
744static int raumfeld_is_ac_online(void)
745{
746 return !gpio_get_value(GPIO_CHARGE_DC_OK);
747}
748
749static int raumfeld_is_usb_online(void)
750{
751 return 0;
752}
753
754static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
755
756static void raumfeld_power_signal_charged(void)
757{
758 struct power_supply *psy =
759 power_supply_get_by_name(raumfeld_power_supplicants[0]);
760
761 if (psy)
762 power_supply_set_battery_charged(psy);
763}
764
765static int raumfeld_power_resume(void)
766{
767 /* check if GPIO_CHARGE_DONE went low while we were sleeping */
768 if (!gpio_get_value(GPIO_CHARGE_DONE))
769 raumfeld_power_signal_charged();
770
771 return 0;
772}
773
774static struct pda_power_pdata power_supply_info = {
775 .init = power_supply_init,
776 .is_ac_online = raumfeld_is_ac_online,
777 .is_usb_online = raumfeld_is_usb_online,
778 .exit = power_supply_exit,
779 .supplied_to = raumfeld_power_supplicants,
780 .num_supplicants = ARRAY_SIZE(raumfeld_power_supplicants),
781 .resume = raumfeld_power_resume,
782};
783
784static struct resource power_supply_resources[] = {
785 {
786 .name = "ac",
787 .flags = IORESOURCE_IRQ |
788 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
789 .start = GPIO_CHARGE_DC_OK,
790 .end = GPIO_CHARGE_DC_OK,
791 },
792};
793
794static irqreturn_t charge_done_irq(int irq, void *dev_id)
795{
796 raumfeld_power_signal_charged();
797 return IRQ_HANDLED;
798}
799
800static struct platform_device raumfeld_power_supply = {
801 .name = "pda-power",
802 .id = -1,
803 .dev = {
804 .platform_data = &power_supply_info,
805 },
806 .resource = power_supply_resources,
807 .num_resources = ARRAY_SIZE(power_supply_resources),
808};
809
810static void __init raumfeld_power_init(void)
811{
812 int ret;
813
814 /* Set PEN2 high to enable maximum charge current */
815 ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
816 if (ret < 0)
817 pr_warning("Unable to request GPIO_CHRG_PEN2\n");
818 else
819 gpio_direction_output(GPIO_CHRG_PEN2, 1);
820
821 ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
822 if (ret < 0)
823 pr_warning("Unable to request GPIO_CHARGE_DC_OK\n");
824
825 ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
826 if (ret < 0)
827 pr_warning("Unable to request GPIO_CHARGE_USB_SUSP\n");
828 else
829 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
830
831 power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
832 power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
833
834 ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
835 &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
836 "charge_done", NULL);
837
838 if (ret < 0)
839 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
840 GPIO_CHARGE_DONE);
841 else
842 platform_device_register(&raumfeld_power_supply);
843}
844
845/* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
846
847static struct regulator_consumer_supply audio_va_consumer_supply =
848 REGULATOR_SUPPLY("va", "0-0048");
849
850struct regulator_init_data audio_va_initdata = {
851 .consumer_supplies = &audio_va_consumer_supply,
852 .num_consumer_supplies = 1,
853 .constraints = {
854 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
855 },
856};
857
858static struct fixed_voltage_config audio_va_config = {
859 .supply_name = "audio_va",
860 .microvolts = 5000000,
861 .gpio = GPIO_AUDIO_VA_ENABLE,
862 .enable_high = 1,
863 .enabled_at_boot = 0,
864 .init_data = &audio_va_initdata,
865};
866
867static struct platform_device audio_va_device = {
868 .name = "reg-fixed-voltage",
869 .id = 0,
870 .dev = {
871 .platform_data = &audio_va_config,
872 },
873};
874
875/* Dummy supplies for Codec's VD/VLC */
876
877static struct regulator_consumer_supply audio_dummy_supplies[] = {
878 REGULATOR_SUPPLY("vd", "0-0048"),
879 REGULATOR_SUPPLY("vlc", "0-0048"),
880};
881
882struct regulator_init_data audio_dummy_initdata = {
883 .consumer_supplies = audio_dummy_supplies,
884 .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
885 .constraints = {
886 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
887 },
888};
889
890static struct fixed_voltage_config audio_dummy_config = {
891 .supply_name = "audio_vd",
892 .microvolts = 3300000,
893 .gpio = -1,
894 .init_data = &audio_dummy_initdata,
895};
896
897static struct platform_device audio_supply_dummy_device = {
898 .name = "reg-fixed-voltage",
899 .id = 1,
900 .dev = {
901 .platform_data = &audio_dummy_config,
902 },
903};
904
905static struct platform_device *audio_regulator_devices[] = {
906 &audio_va_device,
907 &audio_supply_dummy_device,
908};
909
910/**
911 * Regulator support via MAX8660
912 */
913
914static struct regulator_consumer_supply vcc_mmc_supply =
915 REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
916
917static struct regulator_init_data vcc_mmc_init_data = {
918 .constraints = {
919 .min_uV = 3300000,
920 .max_uV = 3300000,
921 .valid_modes_mask = REGULATOR_MODE_NORMAL,
922 .valid_ops_mask = REGULATOR_CHANGE_STATUS |
923 REGULATOR_CHANGE_VOLTAGE |
924 REGULATOR_CHANGE_MODE,
925 },
926 .consumer_supplies = &vcc_mmc_supply,
927 .num_consumer_supplies = 1,
928};
929
930struct max8660_subdev_data max8660_v6_subdev_data = {
931 .id = MAX8660_V6,
932 .name = "vmmc",
933 .platform_data = &vcc_mmc_init_data,
934};
935
936static struct max8660_platform_data max8660_pdata = {
937 .subdevs = &max8660_v6_subdev_data,
938 .num_subdevs = 1,
939};
940
941/**
942 * I2C devices
943 */
944
945static struct i2c_board_info raumfeld_pwri2c_board_info = {
946 .type = "max8660",
947 .addr = 0x34,
948 .platform_data = &max8660_pdata,
949};
950
951static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
952 .type = "cs4270",
953 .addr = 0x48,
954};
955
956static struct eeti_ts_platform_data eeti_ts_pdata = {
957 .irq_active_high = 1,
958 .irq_gpio = GPIO_TOUCH_IRQ,
959};
960
961static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
962 .type = "eeti_ts",
963 .addr = 0x0a,
964 .platform_data = &eeti_ts_pdata,
965};
966
967static struct platform_device *raumfeld_common_devices[] = {
968 &raumfeld_gpio_keys_device,
969 &raumfeld_led_device,
970 &raumfeld_spi_device,
971};
972
973static void __init raumfeld_audio_init(void)
974{
975 int ret;
976
977 ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
978 if (ret < 0)
979 pr_warning("unable to request GPIO_CODEC_RESET\n");
980 else
981 gpio_direction_output(GPIO_CODEC_RESET, 1);
982
983 ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
984 if (ret < 0)
985 pr_warning("unable to request GPIO_SPDIF_RESET\n");
986 else
987 gpio_direction_output(GPIO_SPDIF_RESET, 1);
988
989 ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
990 if (ret < 0)
991 pr_warning("unable to request GPIO_MCLK_RESET\n");
992 else
993 gpio_direction_output(GPIO_MCLK_RESET, 1);
994
995 platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
996}
997
998static void __init raumfeld_common_init(void)
999{
1000 int ret;
1001
1002 /* The on/off button polarity has changed after revision 1 */
1003 if ((system_rev & 0xff) > 1) {
1004 int i;
1005
1006 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1007 if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1008 gpio_keys_button[i].active_low = 1;
1009 }
1010
1011 enable_irq_wake(IRQ_WAKEUP0);
1012
1013 pxa3xx_set_nand_info(&raumfeld_nand_info);
1014 pxa3xx_set_i2c_power_info(NULL);
1015 pxa_set_ohci_info(&raumfeld_ohci_info);
1016 pxa_set_mci_info(&raumfeld_mci_platform_data);
1017 pxa_set_i2c_info(NULL);
1018 pxa_set_ffuart_info(NULL);
1019
1020 ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1021 if (ret < 0)
1022 pr_warning("Unable to request GPIO_W2W_RESET\n");
1023 else
1024 gpio_direction_output(GPIO_W2W_RESET, 0);
1025
1026 ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1027 if (ret < 0)
1028 pr_warning("Unable to request GPIO_W2W_PDN\n");
1029 else
1030 gpio_direction_output(GPIO_W2W_PDN, 0);
1031
1032 /* this can be used to switch off the device */
1033 ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1034 if (ret < 0)
1035 pr_warning("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1036 else
1037 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1038
1039 platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1040 i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1041}
1042
1043static void __init raumfeld_controller_init(void)
1044{
1045 int ret;
1046
1047 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1048 platform_device_register(&rotary_encoder_device);
1049 spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1050 i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1051
1052 ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1053 if (ret < 0)
1054 pr_warning("Unable to request GPIO_SHUTDOWN_BATT\n");
1055 else
1056 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1057
1058 raumfeld_common_init();
1059 raumfeld_power_init();
1060 raumfeld_lcd_init();
1061 raumfeld_w1_init();
1062}
1063
1064static void __init raumfeld_connector_init(void)
1065{
1066 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1067 spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1068 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1069
1070 platform_device_register(&smc91x_device);
1071
1072 raumfeld_audio_init();
1073 raumfeld_common_init();
1074}
1075
1076static void __init raumfeld_speaker_init(void)
1077{
1078 pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1079 spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1080 i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1081
1082 platform_device_register(&smc91x_device);
1083 platform_device_register(&rotary_encoder_device);
1084
1085 raumfeld_audio_init();
1086 raumfeld_common_init();
1087}
1088
1089/* physical memory regions */
1090#define RAUMFELD_SDRAM_BASE 0xa0000000 /* SDRAM region */
1091
1092#ifdef CONFIG_MACH_RAUMFELD_RC
1093MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1094 .atag_offset = 0x100,
1095 .init_machine = raumfeld_controller_init,
1096 .map_io = pxa3xx_map_io,
1097 .nr_irqs = PXA_NR_IRQS,
1098 .init_irq = pxa3xx_init_irq,
1099 .handle_irq = pxa3xx_handle_irq,
1100 .init_time = pxa_timer_init,
1101 .restart = pxa_restart,
1102MACHINE_END
1103#endif
1104
1105#ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1106MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1107 .atag_offset = 0x100,
1108 .init_machine = raumfeld_connector_init,
1109 .map_io = pxa3xx_map_io,
1110 .nr_irqs = PXA_NR_IRQS,
1111 .init_irq = pxa3xx_init_irq,
1112 .handle_irq = pxa3xx_handle_irq,
1113 .init_time = pxa_timer_init,
1114 .restart = pxa_restart,
1115MACHINE_END
1116#endif
1117
1118#ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1119MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1120 .atag_offset = 0x100,
1121 .init_machine = raumfeld_speaker_init,
1122 .map_io = pxa3xx_map_io,
1123 .nr_irqs = PXA_NR_IRQS,
1124 .init_irq = pxa3xx_init_irq,
1125 .handle_irq = pxa3xx_handle_irq,
1126 .init_time = pxa_timer_init,
1127 .restart = pxa_restart,
1128MACHINE_END
1129#endif