arch/arm/mach-pxa/z2.c

   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/platform_data/i2c-pxa.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