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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/z2.c

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  1 /*
  2  *  linux/arch/arm/mach-pxa/z2.c
  3  *
  4  *  Support for the Zipit Z2 Handheld device.
  5  *
  6  *  Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
  7  *
  8  *  Based on research and code by: Ken McGuire
  9  *  Based on mainstone.c as modified for the Zipit Z2.
 10  *
 11  *  This program is free software; you can redistribute it and/or modify
 12  *  it under the terms of the GNU General Public License version 2 as
 13  *  published by the Free Software Foundation.
 14  */
 15 
 16 #include <linux/platform_device.h>
 17 #include <linux/mtd/mtd.h>
 18 #include <linux/mtd/partitions.h>
 19 #include <linux/pwm.h>
 20 #include <linux/pwm_backlight.h>
 21 #include <linux/z2_battery.h>
 22 #include <linux/dma-mapping.h>
 23 #include <linux/spi/spi.h>
 24 #include <linux/spi/pxa2xx_spi.h>
 25 #include <linux/spi/libertas_spi.h>
 26 #include <linux/spi/lms283gf05.h>
 27 #include <linux/power_supply.h>
 28 #include <linux/mtd/physmap.h>
 29 #include <linux/gpio.h>
 30 #include <linux/gpio_keys.h>
 31 #include <linux/delay.h>
 32 #include <linux/regulator/machine.h>
 33 #include <linux/i2c/pxa-i2c.h>
 34 
 35 #include <asm/mach-types.h>
 36 #include <asm/mach/arch.h>
 37 
 38 #include "pxa27x.h"
 39 #include "mfp-pxa27x.h"
 40 #include <mach/z2.h>
 41 #include <linux/platform_data/video-pxafb.h>
 42 #include <linux/platform_data/mmc-pxamci.h>
 43 #include <linux/platform_data/keypad-pxa27x.h>
 44 #include "pm.h"
 45 
 46 #include "generic.h"
 47 #include "devices.h"
 48 
 49 /******************************************************************************
 50  * Pin configuration
 51  ******************************************************************************/
 52 static unsigned long z2_pin_config[] = {
 53 
 54         /* LCD - 16bpp Active TFT */
 55         GPIO58_LCD_LDD_0,
 56         GPIO59_LCD_LDD_1,
 57         GPIO60_LCD_LDD_2,
 58         GPIO61_LCD_LDD_3,
 59         GPIO62_LCD_LDD_4,
 60         GPIO63_LCD_LDD_5,
 61         GPIO64_LCD_LDD_6,
 62         GPIO65_LCD_LDD_7,
 63         GPIO66_LCD_LDD_8,
 64         GPIO67_LCD_LDD_9,
 65         GPIO68_LCD_LDD_10,
 66         GPIO69_LCD_LDD_11,
 67         GPIO70_LCD_LDD_12,
 68         GPIO71_LCD_LDD_13,
 69         GPIO72_LCD_LDD_14,
 70         GPIO73_LCD_LDD_15,
 71         GPIO74_LCD_FCLK,
 72         GPIO75_LCD_LCLK,
 73         GPIO76_LCD_PCLK,
 74         GPIO77_LCD_BIAS,
 75         GPIO19_GPIO,            /* LCD reset */
 76         GPIO88_GPIO,            /* LCD chipselect */
 77 
 78         /* PWM */
 79         GPIO115_PWM1_OUT,       /* Keypad Backlight */
 80         GPIO11_PWM2_OUT,        /* LCD Backlight */
 81 
 82         /* MMC */
 83         GPIO32_MMC_CLK,
 84         GPIO112_MMC_CMD,
 85         GPIO92_MMC_DAT_0,
 86         GPIO109_MMC_DAT_1,
 87         GPIO110_MMC_DAT_2,
 88         GPIO111_MMC_DAT_3,
 89         GPIO96_GPIO,            /* SD detect */
 90 
 91         /* STUART */
 92         GPIO46_STUART_RXD,
 93         GPIO47_STUART_TXD,
 94 
 95         /* Keypad */
 96         GPIO100_KP_MKIN_0,
 97         GPIO101_KP_MKIN_1,
 98         GPIO102_KP_MKIN_2,
 99         GPIO34_KP_MKIN_3,
100         GPIO38_KP_MKIN_4,
101         GPIO16_KP_MKIN_5,
102         GPIO17_KP_MKIN_6,
103         GPIO103_KP_MKOUT_0,
104         GPIO104_KP_MKOUT_1,
105         GPIO105_KP_MKOUT_2,
106         GPIO106_KP_MKOUT_3,
107         GPIO107_KP_MKOUT_4,
108         GPIO108_KP_MKOUT_5,
109         GPIO35_KP_MKOUT_6,
110         GPIO41_KP_MKOUT_7,
111 
112         /* I2C */
113         GPIO117_I2C_SCL,
114         GPIO118_I2C_SDA,
115 
116         /* SSP1 */
117         GPIO23_SSP1_SCLK,       /* SSP1_SCK */
118         GPIO25_SSP1_TXD,        /* SSP1_TXD */
119         GPIO26_SSP1_RXD,        /* SSP1_RXD */
120 
121         /* SSP2 */
122         GPIO22_SSP2_SCLK,       /* SSP2_SCK */
123         GPIO13_SSP2_TXD,        /* SSP2_TXD */
124         GPIO40_SSP2_RXD,        /* SSP2_RXD */
125 
126         /* LEDs */
127         GPIO10_GPIO,            /* WiFi LED */
128         GPIO83_GPIO,            /* Charging LED */
129         GPIO85_GPIO,            /* Charged LED */
130 
131         /* I2S */
132         GPIO28_I2S_BITCLK_OUT,
133         GPIO29_I2S_SDATA_IN,
134         GPIO30_I2S_SDATA_OUT,
135         GPIO31_I2S_SYNC,
136         GPIO113_I2S_SYSCLK,
137 
138         /* MISC */
139         GPIO0_GPIO,             /* AC power detect */
140         GPIO1_GPIO,             /* Power button */
141         GPIO37_GPIO,            /* Headphone detect */
142         GPIO98_GPIO,            /* Lid switch */
143         GPIO14_GPIO,            /* WiFi Power */
144         GPIO24_GPIO,            /* WiFi CS */
145         GPIO36_GPIO,            /* WiFi IRQ */
146         GPIO88_GPIO,            /* LCD CS */
147 };
148 
149 /******************************************************************************
150  * NOR Flash
151  ******************************************************************************/
152 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
153 static struct resource z2_flash_resource = {
154         .start  = PXA_CS0_PHYS,
155         .end    = PXA_CS0_PHYS + SZ_8M - 1,
156         .flags  = IORESOURCE_MEM,
157 };
158 
159 static struct mtd_partition z2_flash_parts[] = {
160         {
161                 .name   = "U-Boot Bootloader",
162                 .offset = 0x0,
163                 .size   = 0x40000,
164         }, {
165                 .name   = "U-Boot Environment",
166                 .offset = 0x40000,
167                 .size   = 0x20000,
168         }, {
169                 .name   = "Flash",
170                 .offset = 0x60000,
171                 .size   = MTDPART_SIZ_FULL,
172         },
173 };
174 
175 static struct physmap_flash_data z2_flash_data = {
176         .width          = 2,
177         .parts          = z2_flash_parts,
178         .nr_parts       = ARRAY_SIZE(z2_flash_parts),
179 };
180 
181 static struct platform_device z2_flash = {
182         .name           = "physmap-flash",
183         .id             = -1,
184         .resource       = &z2_flash_resource,
185         .num_resources  = 1,
186         .dev = {
187                 .platform_data  = &z2_flash_data,
188         },
189 };
190 
191 static void __init z2_nor_init(void)
192 {
193         platform_device_register(&z2_flash);
194 }
195 #else
196 static inline void z2_nor_init(void) {}
197 #endif
198 
199 /******************************************************************************
200  * Backlight
201  ******************************************************************************/
202 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
203 static struct pwm_lookup z2_pwm_lookup[] = {
204         PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight.0", NULL, 1260320,
205                    PWM_POLARITY_NORMAL),
206         PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.1", NULL, 1260320,
207                    PWM_POLARITY_NORMAL),
208 };
209 
210 static struct platform_pwm_backlight_data z2_backlight_data[] = {
211         [0] = {
212                 /* Keypad Backlight */
213                 .max_brightness = 1023,
214                 .dft_brightness = 0,
215                 .enable_gpio    = -1,
216         },
217         [1] = {
218                 /* LCD Backlight */
219                 .max_brightness = 1023,
220                 .dft_brightness = 512,
221                 .enable_gpio    = -1,
222         },
223 };
224 
225 static struct platform_device z2_backlight_devices[2] = {
226         {
227                 .name   = "pwm-backlight",
228                 .id     = 0,
229                 .dev    = {
230                         .platform_data  = &z2_backlight_data[1],
231                 },
232         },
233         {
234                 .name   = "pwm-backlight",
235                 .id     = 1,
236                 .dev    = {
237                         .platform_data  = &z2_backlight_data[0],
238                 },
239         },
240 };
241 static void __init z2_pwm_init(void)
242 {
243         pwm_add_table(z2_pwm_lookup, ARRAY_SIZE(z2_pwm_lookup));
244         platform_device_register(&z2_backlight_devices[0]);
245         platform_device_register(&z2_backlight_devices[1]);
246 }
247 #else
248 static inline void z2_pwm_init(void) {}
249 #endif
250 
251 /******************************************************************************
252  * Framebuffer
253  ******************************************************************************/
254 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
255 static struct pxafb_mode_info z2_lcd_modes[] = {
256 {
257         .pixclock       = 192000,
258         .xres           = 240,
259         .yres           = 320,
260         .bpp            = 16,
261 
262         .left_margin    = 4,
263         .right_margin   = 8,
264         .upper_margin   = 4,
265         .lower_margin   = 8,
266 
267         .hsync_len      = 4,
268         .vsync_len      = 4,
269 },
270 };
271 
272 static struct pxafb_mach_info z2_lcd_screen = {
273         .modes          = z2_lcd_modes,
274         .num_modes      = ARRAY_SIZE(z2_lcd_modes),
275         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
276                           LCD_ALTERNATE_MAPPING,
277 };
278 
279 static void __init z2_lcd_init(void)
280 {
281         pxa_set_fb_info(NULL, &z2_lcd_screen);
282 }
283 #else
284 static inline void z2_lcd_init(void) {}
285 #endif
286 
287 /******************************************************************************
288  * SD/MMC card controller
289  ******************************************************************************/
290 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
291 static struct pxamci_platform_data z2_mci_platform_data = {
292         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
293         .gpio_card_detect       = GPIO96_ZIPITZ2_SD_DETECT,
294         .gpio_power             = -1,
295         .gpio_card_ro           = -1,
296         .detect_delay_ms        = 200,
297 };
298 
299 static void __init z2_mmc_init(void)
300 {
301         pxa_set_mci_info(&z2_mci_platform_data);
302 }
303 #else
304 static inline void z2_mmc_init(void) {}
305 #endif
306 
307 /******************************************************************************
308  * LEDs
309  ******************************************************************************/
310 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
311 struct gpio_led z2_gpio_leds[] = {
312 {
313         .name                   = "z2:green:wifi",
314         .default_trigger        = "none",
315         .gpio                   = GPIO10_ZIPITZ2_LED_WIFI,
316         .active_low             = 1,
317 }, {
318         .name                   = "z2:green:charged",
319         .default_trigger        = "mmc0",
320         .gpio                   = GPIO85_ZIPITZ2_LED_CHARGED,
321         .active_low             = 1,
322 }, {
323         .name                   = "z2:amber:charging",
324         .default_trigger        = "Z2-charging-or-full",
325         .gpio                   = GPIO83_ZIPITZ2_LED_CHARGING,
326         .active_low             = 1,
327 },
328 };
329 
330 static struct gpio_led_platform_data z2_gpio_led_info = {
331         .leds           = z2_gpio_leds,
332         .num_leds       = ARRAY_SIZE(z2_gpio_leds),
333 };
334 
335 static struct platform_device z2_leds = {
336         .name   = "leds-gpio",
337         .id     = -1,
338         .dev    = {
339                 .platform_data  = &z2_gpio_led_info,
340         }
341 };
342 
343 static void __init z2_leds_init(void)
344 {
345         platform_device_register(&z2_leds);
346 }
347 #else
348 static inline void z2_leds_init(void) {}
349 #endif
350 
351 /******************************************************************************
352  * GPIO keyboard
353  ******************************************************************************/
354 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
355 static const unsigned int z2_matrix_keys[] = {
356         KEY(0, 0, KEY_OPTION),
357         KEY(1, 0, KEY_UP),
358         KEY(2, 0, KEY_DOWN),
359         KEY(3, 0, KEY_LEFT),
360         KEY(4, 0, KEY_RIGHT),
361         KEY(5, 0, KEY_END),
362         KEY(6, 0, KEY_KPPLUS),
363 
364         KEY(0, 1, KEY_HOME),
365         KEY(1, 1, KEY_Q),
366         KEY(2, 1, KEY_I),
367         KEY(3, 1, KEY_G),
368         KEY(4, 1, KEY_X),
369         KEY(5, 1, KEY_ENTER),
370         KEY(6, 1, KEY_KPMINUS),
371 
372         KEY(0, 2, KEY_PAGEUP),
373         KEY(1, 2, KEY_W),
374         KEY(2, 2, KEY_O),
375         KEY(3, 2, KEY_H),
376         KEY(4, 2, KEY_C),
377         KEY(5, 2, KEY_LEFTALT),
378 
379         KEY(0, 3, KEY_PAGEDOWN),
380         KEY(1, 3, KEY_E),
381         KEY(2, 3, KEY_P),
382         KEY(3, 3, KEY_J),
383         KEY(4, 3, KEY_V),
384         KEY(5, 3, KEY_LEFTSHIFT),
385 
386         KEY(0, 4, KEY_ESC),
387         KEY(1, 4, KEY_R),
388         KEY(2, 4, KEY_A),
389         KEY(3, 4, KEY_K),
390         KEY(4, 4, KEY_B),
391         KEY(5, 4, KEY_LEFTCTRL),
392 
393         KEY(0, 5, KEY_TAB),
394         KEY(1, 5, KEY_T),
395         KEY(2, 5, KEY_S),
396         KEY(3, 5, KEY_L),
397         KEY(4, 5, KEY_N),
398         KEY(5, 5, KEY_SPACE),
399 
400         KEY(0, 6, KEY_STOPCD),
401         KEY(1, 6, KEY_Y),
402         KEY(2, 6, KEY_D),
403         KEY(3, 6, KEY_BACKSPACE),
404         KEY(4, 6, KEY_M),
405         KEY(5, 6, KEY_COMMA),
406 
407         KEY(0, 7, KEY_PLAYCD),
408         KEY(1, 7, KEY_U),
409         KEY(2, 7, KEY_F),
410         KEY(3, 7, KEY_Z),
411         KEY(4, 7, KEY_SEMICOLON),
412         KEY(5, 7, KEY_DOT),
413 };
414 
415 static struct matrix_keymap_data z2_matrix_keymap_data = {
416         .keymap                 = z2_matrix_keys,
417         .keymap_size            = ARRAY_SIZE(z2_matrix_keys),
418 };
419 
420 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
421         .matrix_key_rows        = 7,
422         .matrix_key_cols        = 8,
423         .matrix_keymap_data     = &z2_matrix_keymap_data,
424 
425         .debounce_interval      = 30,
426 };
427 
428 static void __init z2_mkp_init(void)
429 {
430         pxa_set_keypad_info(&z2_keypad_platform_data);
431 }
432 #else
433 static inline void z2_mkp_init(void) {}
434 #endif
435 
436 /******************************************************************************
437  * GPIO keys
438  ******************************************************************************/
439 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
440 static struct gpio_keys_button z2_pxa_buttons[] = {
441         {
442                 .code           = KEY_POWER,
443                 .gpio           = GPIO1_ZIPITZ2_POWER_BUTTON,
444                 .active_low     = 0,
445                 .desc           = "Power Button",
446                 .wakeup         = 1,
447                 .type           = EV_KEY,
448         },
449         {
450                 .code           = SW_LID,
451                 .gpio           = GPIO98_ZIPITZ2_LID_BUTTON,
452                 .active_low     = 1,
453                 .desc           = "Lid Switch",
454                 .wakeup         = 0,
455                 .type           = EV_SW,
456         },
457 };
458 
459 static struct gpio_keys_platform_data z2_pxa_keys_data = {
460         .buttons        = z2_pxa_buttons,
461         .nbuttons       = ARRAY_SIZE(z2_pxa_buttons),
462 };
463 
464 static struct platform_device z2_pxa_keys = {
465         .name   = "gpio-keys",
466         .id     = -1,
467         .dev    = {
468                 .platform_data = &z2_pxa_keys_data,
469         },
470 };
471 
472 static void __init z2_keys_init(void)
473 {
474         platform_device_register(&z2_pxa_keys);
475 }
476 #else
477 static inline void z2_keys_init(void) {}
478 #endif
479 
480 /******************************************************************************
481  * Battery
482  ******************************************************************************/
483 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
484 static struct z2_battery_info batt_chip_info = {
485         .batt_I2C_bus   = 0,
486         .batt_I2C_addr  = 0x55,
487         .batt_I2C_reg   = 2,
488         .charge_gpio    = GPIO0_ZIPITZ2_AC_DETECT,
489         .min_voltage    = 3475000,
490         .max_voltage    = 4190000,
491         .batt_div       = 59,
492         .batt_mult      = 1000000,
493         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LION,
494         .batt_name      = "Z2",
495 };
496 
497 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
498         {
499                 I2C_BOARD_INFO("aer915", 0x55),
500                 .platform_data  = &batt_chip_info,
501         }, {
502                 I2C_BOARD_INFO("wm8750", 0x1b),
503         },
504 
505 };
506 
507 static void __init z2_i2c_init(void)
508 {
509         pxa_set_i2c_info(NULL);
510         i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
511 }
512 #else
513 static inline void z2_i2c_init(void) {}
514 #endif
515 
516 /******************************************************************************
517  * SSP Devices - WiFi and LCD control
518  ******************************************************************************/
519 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
520 /* WiFi */
521 static int z2_lbs_spi_setup(struct spi_device *spi)
522 {
523         int ret = 0;
524 
525         ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
526         if (ret)
527                 goto err;
528 
529         ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
530         if (ret)
531                 goto err2;
532 
533         /* Wait until card is powered on */
534         mdelay(180);
535 
536         spi->bits_per_word = 16;
537         spi->mode = SPI_MODE_2,
538 
539         spi_setup(spi);
540 
541         return 0;
542 
543 err2:
544         gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
545 err:
546         return ret;
547 };
548 
549 static int z2_lbs_spi_teardown(struct spi_device *spi)
550 {
551         gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
552         gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
553 
554         return 0;
555 };
556 
557 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
558         .rx_threshold   = 8,
559         .tx_threshold   = 8,
560         .timeout        = 1000,
561         .gpio_cs        = GPIO24_ZIPITZ2_WIFI_CS,
562 };
563 
564 static struct libertas_spi_platform_data z2_lbs_pdata = {
565         .use_dummy_writes       = 1,
566         .setup                  = z2_lbs_spi_setup,
567         .teardown               = z2_lbs_spi_teardown,
568 };
569 
570 /* LCD */
571 static struct pxa2xx_spi_chip lms283_chip_info = {
572         .rx_threshold   = 1,
573         .tx_threshold   = 1,
574         .timeout        = 64,
575         .gpio_cs        = GPIO88_ZIPITZ2_LCD_CS,
576 };
577 
578 static const struct lms283gf05_pdata lms283_pdata = {
579         .reset_gpio     = GPIO19_ZIPITZ2_LCD_RESET,
580 };
581 
582 static struct spi_board_info spi_board_info[] __initdata = {
583 {
584         .modalias               = "libertas_spi",
585         .platform_data          = &z2_lbs_pdata,
586         .controller_data        = &z2_lbs_chip_info,
587         .irq                    = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
588         .max_speed_hz           = 13000000,
589         .bus_num                = 1,
590         .chip_select            = 0,
591 },
592 {
593         .modalias               = "lms283gf05",
594         .controller_data        = &lms283_chip_info,
595         .platform_data          = &lms283_pdata,
596         .max_speed_hz           = 400000,
597         .bus_num                = 2,
598         .chip_select            = 0,
599 },
600 };
601 
602 static struct pxa2xx_spi_master pxa_ssp1_master_info = {
603         .num_chipselect = 1,
604         .enable_dma     = 1,
605 };
606 
607 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
608         .num_chipselect = 1,
609 };
610 
611 static void __init z2_spi_init(void)
612 {
613         pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
614         pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
615         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
616 }
617 #else
618 static inline void z2_spi_init(void) {}
619 #endif
620 
621 /******************************************************************************
622  * Core power regulator
623  ******************************************************************************/
624 #if defined(CONFIG_REGULATOR_TPS65023) || \
625         defined(CONFIG_REGULATOR_TPS65023_MODULE)
626 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
627         REGULATOR_SUPPLY("vcc_core", NULL),
628 };
629 
630 static struct regulator_init_data z2_tps65021_info[] = {
631         {
632                 .constraints = {
633                         .name           = "vcc_core range",
634                         .min_uV         = 800000,
635                         .max_uV         = 1600000,
636                         .always_on      = 1,
637                         .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
638                 },
639                 .consumer_supplies      = z2_tps65021_consumers,
640                 .num_consumer_supplies  = ARRAY_SIZE(z2_tps65021_consumers),
641         }, {
642                 .constraints = {
643                         .name           = "DCDC2",
644                         .min_uV         = 3300000,
645                         .max_uV         = 3300000,
646                         .always_on      = 1,
647                 },
648         }, {
649                 .constraints = {
650                         .name           = "DCDC3",
651                         .min_uV         = 1800000,
652                         .max_uV         = 1800000,
653                         .always_on      = 1,
654                 },
655         }, {
656                 .constraints = {
657                         .name           = "LDO1",
658                         .min_uV         = 1000000,
659                         .max_uV         = 3150000,
660                         .always_on      = 1,
661                 },
662         }, {
663                 .constraints = {
664                         .name           = "LDO2",
665                         .min_uV         = 1050000,
666                         .max_uV         = 3300000,
667                         .always_on      = 1,
668                 },
669         }
670 };
671 
672 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
673         {
674                 I2C_BOARD_INFO("tps65021", 0x48),
675                 .platform_data  = &z2_tps65021_info,
676         },
677 };
678 
679 static void __init z2_pmic_init(void)
680 {
681         pxa27x_set_i2c_power_info(NULL);
682         i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
683 }
684 #else
685 static inline void z2_pmic_init(void) {}
686 #endif
687 
688 #ifdef CONFIG_PM
689 static void z2_power_off(void)
690 {
691         /* We're using deep sleep as poweroff, so clear PSPR to ensure that
692          * bootloader will jump to its entry point in resume handler
693          */
694         PSPR = 0x0;
695         local_irq_disable();
696         pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
697         pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
698 }
699 #else
700 #define z2_power_off   NULL
701 #endif
702 
703 /******************************************************************************
704  * Machine init
705  ******************************************************************************/
706 static void __init z2_init(void)
707 {
708         pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
709 
710         pxa_set_ffuart_info(NULL);
711         pxa_set_btuart_info(NULL);
712         pxa_set_stuart_info(NULL);
713 
714         z2_lcd_init();
715         z2_mmc_init();
716         z2_mkp_init();
717         z2_i2c_init();
718         z2_spi_init();
719         z2_nor_init();
720         z2_pwm_init();
721         z2_leds_init();
722         z2_keys_init();
723         z2_pmic_init();
724 
725         pm_power_off = z2_power_off;
726 }
727 
728 MACHINE_START(ZIPIT2, "Zipit Z2")
729         .atag_offset    = 0x100,
730         .map_io         = pxa27x_map_io,
731         .nr_irqs        = PXA_NR_IRQS,
732         .init_irq       = pxa27x_init_irq,
733         .handle_irq     = pxa27x_handle_irq,
734         .init_time      = pxa_timer_init,
735         .init_machine   = z2_init,
736         .restart        = pxa_restart,
737 MACHINE_END
738 

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