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_backlight.h>
  20 #include <linux/z2_battery.h>
  21 #include <linux/dma-mapping.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/spi/pxa2xx_spi.h>
  24 #include <linux/spi/libertas_spi.h>
  25 #include <linux/spi/lms283gf05.h>
  26 #include <linux/power_supply.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/gpio.h>
  29 #include <linux/gpio_keys.h>
  30 #include <linux/delay.h>
  31 #include <linux/regulator/machine.h>
  32 #include <linux/i2c/pxa-i2c.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36
  37 #include <mach/pxa27x.h>
  38 #include <mach/mfp-pxa27x.h>
  39 #include <mach/z2.h>
  40 #include <linux/platform_data/video-pxafb.h>
  41 #include <linux/platform_data/mmc-pxamci.h>
  42 #include <linux/platform_data/keypad-pxa27x.h>
  43 #include <mach/pm.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /******************************************************************************
  49  * Pin configuration
  50  ******************************************************************************/
  51 static unsigned long z2_pin_config[] = {
  52
  53         /* LCD - 16bpp Active TFT */
  54         GPIO58_LCD_LDD_0,
  55         GPIO59_LCD_LDD_1,
  56         GPIO60_LCD_LDD_2,
  57         GPIO61_LCD_LDD_3,
  58         GPIO62_LCD_LDD_4,
  59         GPIO63_LCD_LDD_5,
  60         GPIO64_LCD_LDD_6,
  61         GPIO65_LCD_LDD_7,
  62         GPIO66_LCD_LDD_8,
  63         GPIO67_LCD_LDD_9,
  64         GPIO68_LCD_LDD_10,
  65         GPIO69_LCD_LDD_11,
  66         GPIO70_LCD_LDD_12,
  67         GPIO71_LCD_LDD_13,
  68         GPIO72_LCD_LDD_14,
  69         GPIO73_LCD_LDD_15,
  70         GPIO74_LCD_FCLK,
  71         GPIO75_LCD_LCLK,
  72         GPIO76_LCD_PCLK,
  73         GPIO77_LCD_BIAS,
  74         GPIO19_GPIO,            /* LCD reset */
  75         GPIO88_GPIO,            /* LCD chipselect */
  76
  77         /* PWM */
  78         GPIO115_PWM1_OUT,       /* Keypad Backlight */
  79         GPIO11_PWM2_OUT,        /* LCD Backlight */
  80
  81         /* MMC */
  82         GPIO32_MMC_CLK,
  83         GPIO112_MMC_CMD,
  84         GPIO92_MMC_DAT_0,
  85         GPIO109_MMC_DAT_1,
  86         GPIO110_MMC_DAT_2,
  87         GPIO111_MMC_DAT_3,
  88         GPIO96_GPIO,            /* SD detect */
  89
  90         /* STUART */
  91         GPIO46_STUART_RXD,
  92         GPIO47_STUART_TXD,
  93
  94         /* Keypad */
  95         GPIO100_KP_MKIN_0,
  96         GPIO101_KP_MKIN_1,
  97         GPIO102_KP_MKIN_2,
  98         GPIO34_KP_MKIN_3,
  99         GPIO38_KP_MKIN_4,
 100         GPIO16_KP_MKIN_5,
 101         GPIO17_KP_MKIN_6,
 102         GPIO103_KP_MKOUT_0,
 103         GPIO104_KP_MKOUT_1,
 104         GPIO105_KP_MKOUT_2,
 105         GPIO106_KP_MKOUT_3,
 106         GPIO107_KP_MKOUT_4,
 107         GPIO108_KP_MKOUT_5,
 108         GPIO35_KP_MKOUT_6,
 109         GPIO41_KP_MKOUT_7,
 110
 111         /* I2C */
 112         GPIO117_I2C_SCL,
 113         GPIO118_I2C_SDA,
 114
 115         /* SSP1 */
 116         GPIO23_SSP1_SCLK,       /* SSP1_SCK */
 117         GPIO25_SSP1_TXD,        /* SSP1_TXD */
 118         GPIO26_SSP1_RXD,        /* SSP1_RXD */
 119
 120         /* SSP2 */
 121         GPIO22_SSP2_SCLK,       /* SSP2_SCK */
 122         GPIO13_SSP2_TXD,        /* SSP2_TXD */
 123         GPIO40_SSP2_RXD,        /* SSP2_RXD */
 124
 125         /* LEDs */
 126         GPIO10_GPIO,            /* WiFi LED */
 127         GPIO83_GPIO,            /* Charging LED */
 128         GPIO85_GPIO,            /* Charged LED */
 129
 130         /* I2S */
 131         GPIO28_I2S_BITCLK_OUT,
 132         GPIO29_I2S_SDATA_IN,
 133         GPIO30_I2S_SDATA_OUT,
 134         GPIO31_I2S_SYNC,
 135         GPIO113_I2S_SYSCLK,
 136
 137         /* MISC */
 138         GPIO0_GPIO,             /* AC power detect */
 139         GPIO1_GPIO,             /* Power button */
 140         GPIO37_GPIO,            /* Headphone detect */
 141         GPIO98_GPIO,            /* Lid switch */
 142         GPIO14_GPIO,            /* WiFi Power */
 143         GPIO24_GPIO,            /* WiFi CS */
 144         GPIO36_GPIO,            /* WiFi IRQ */
 145         GPIO88_GPIO,            /* LCD CS */
 146 };
 147
 148 /******************************************************************************
 149  * NOR Flash
 150  ******************************************************************************/
 151 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 152 static struct resource z2_flash_resource = {
 153         .start  = PXA_CS0_PHYS,
 154         .end    = PXA_CS0_PHYS + SZ_8M - 1,
 155         .flags  = IORESOURCE_MEM,
 156 };
 157
 158 static struct mtd_partition z2_flash_parts[] = {
 159         {
 160                 .name   = "U-Boot Bootloader",
 161                 .offset = 0x0,
 162                 .size   = 0x40000,
 163         }, {
 164                 .name   = "U-Boot Environment",
 165                 .offset = 0x40000,
 166                 .size   = 0x20000,
 167         }, {
 168                 .name   = "Flash",
 169                 .offset = 0x60000,
 170                 .size   = MTDPART_SIZ_FULL,
 171         },
 172 };
 173
 174 static struct physmap_flash_data z2_flash_data = {
 175         .width          = 2,
 176         .parts          = z2_flash_parts,
 177         .nr_parts       = ARRAY_SIZE(z2_flash_parts),
 178 };
 179
 180 static struct platform_device z2_flash = {
 181         .name           = "physmap-flash",
 182         .id             = -1,
 183         .resource       = &z2_flash_resource,
 184         .num_resources  = 1,
 185         .dev = {
 186                 .platform_data  = &z2_flash_data,
 187         },
 188 };
 189
 190 static void __init z2_nor_init(void)
 191 {
 192         platform_device_register(&z2_flash);
 193 }
 194 #else
 195 static inline void z2_nor_init(void) {}
 196 #endif
 197
 198 /******************************************************************************
 199  * Backlight
 200  ******************************************************************************/
 201 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
 202 static struct platform_pwm_backlight_data z2_backlight_data[] = {
 203         [0] = {
 204                 /* Keypad Backlight */
 205                 .pwm_id         = 1,
 206                 .max_brightness = 1023,
 207                 .dft_brightness = 0,
 208                 .pwm_period_ns  = 1260320,
 209         },
 210         [1] = {
 211                 /* LCD Backlight */
 212                 .pwm_id         = 2,
 213                 .max_brightness = 1023,
 214                 .dft_brightness = 512,
 215                 .pwm_period_ns  = 1260320,
 216         },
 217 };
 218
 219 static struct platform_device z2_backlight_devices[2] = {
 220         {
 221                 .name   = "pwm-backlight",
 222                 .id     = 0,
 223                 .dev    = {
 224                         .platform_data  = &z2_backlight_data[1],
 225                 },
 226         },
 227         {
 228                 .name   = "pwm-backlight",
 229                 .id     = 1,
 230                 .dev    = {
 231                         .platform_data  = &z2_backlight_data[0],
 232                 },
 233         },
 234 };
 235 static void __init z2_pwm_init(void)
 236 {
 237         platform_device_register(&z2_backlight_devices[0]);
 238         platform_device_register(&z2_backlight_devices[1]);
 239 }
 240 #else
 241 static inline void z2_pwm_init(void) {}
 242 #endif
 243
 244 /******************************************************************************
 245  * Framebuffer
 246  ******************************************************************************/
 247 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 248 static struct pxafb_mode_info z2_lcd_modes[] = {
 249 {
 250         .pixclock       = 192000,
 251         .xres           = 240,
 252         .yres           = 320,
 253         .bpp            = 16,
 254
 255         .left_margin    = 4,
 256         .right_margin   = 8,
 257         .upper_margin   = 4,
 258         .lower_margin   = 8,
 259
 260         .hsync_len      = 4,
 261         .vsync_len      = 4,
 262 },
 263 };
 264
 265 static struct pxafb_mach_info z2_lcd_screen = {
 266         .modes          = z2_lcd_modes,
 267         .num_modes      = ARRAY_SIZE(z2_lcd_modes),
 268         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
 269                           LCD_ALTERNATE_MAPPING,
 270 };
 271
 272 static void __init z2_lcd_init(void)
 273 {
 274         pxa_set_fb_info(NULL, &z2_lcd_screen);
 275 }
 276 #else
 277 static inline void z2_lcd_init(void) {}
 278 #endif
 279
 280 /******************************************************************************
 281  * SD/MMC card controller
 282  ******************************************************************************/
 283 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 284 static struct pxamci_platform_data z2_mci_platform_data = {
 285         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 286         .gpio_card_detect       = GPIO96_ZIPITZ2_SD_DETECT,
 287         .gpio_power             = -1,
 288         .gpio_card_ro           = -1,
 289         .detect_delay_ms        = 200,
 290 };
 291
 292 static void __init z2_mmc_init(void)
 293 {
 294         pxa_set_mci_info(&z2_mci_platform_data);
 295 }
 296 #else
 297 static inline void z2_mmc_init(void) {}
 298 #endif
 299
 300 /******************************************************************************
 301  * LEDs
 302  ******************************************************************************/
 303 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 304 struct gpio_led z2_gpio_leds[] = {
 305 {
 306         .name                   = "z2:green:wifi",
 307         .default_trigger        = "none",
 308         .gpio                   = GPIO10_ZIPITZ2_LED_WIFI,
 309         .active_low             = 1,
 310 }, {
 311         .name                   = "z2:green:charged",
 312         .default_trigger        = "mmc0",
 313         .gpio                   = GPIO85_ZIPITZ2_LED_CHARGED,
 314         .active_low             = 1,
 315 }, {
 316         .name                   = "z2:amber:charging",
 317         .default_trigger        = "Z2-charging-or-full",
 318         .gpio                   = GPIO83_ZIPITZ2_LED_CHARGING,
 319         .active_low             = 1,
 320 },
 321 };
 322
 323 static struct gpio_led_platform_data z2_gpio_led_info = {
 324         .leds           = z2_gpio_leds,
 325         .num_leds       = ARRAY_SIZE(z2_gpio_leds),
 326 };
 327
 328 static struct platform_device z2_leds = {
 329         .name   = "leds-gpio",
 330         .id     = -1,
 331         .dev    = {
 332                 .platform_data  = &z2_gpio_led_info,
 333         }
 334 };
 335
 336 static void __init z2_leds_init(void)
 337 {
 338         platform_device_register(&z2_leds);
 339 }
 340 #else
 341 static inline void z2_leds_init(void) {}
 342 #endif
 343
 344 /******************************************************************************
 345  * GPIO keyboard
 346  ******************************************************************************/
 347 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 348 static const unsigned int z2_matrix_keys[] = {
 349         KEY(0, 0, KEY_OPTION),
 350         KEY(1, 0, KEY_UP),
 351         KEY(2, 0, KEY_DOWN),
 352         KEY(3, 0, KEY_LEFT),
 353         KEY(4, 0, KEY_RIGHT),
 354         KEY(5, 0, KEY_END),
 355         KEY(6, 0, KEY_KPPLUS),
 356
 357         KEY(0, 1, KEY_HOME),
 358         KEY(1, 1, KEY_Q),
 359         KEY(2, 1, KEY_I),
 360         KEY(3, 1, KEY_G),
 361         KEY(4, 1, KEY_X),
 362         KEY(5, 1, KEY_ENTER),
 363         KEY(6, 1, KEY_KPMINUS),
 364
 365         KEY(0, 2, KEY_PAGEUP),
 366         KEY(1, 2, KEY_W),
 367         KEY(2, 2, KEY_O),
 368         KEY(3, 2, KEY_H),
 369         KEY(4, 2, KEY_C),
 370         KEY(5, 2, KEY_LEFTALT),
 371
 372         KEY(0, 3, KEY_PAGEDOWN),
 373         KEY(1, 3, KEY_E),
 374         KEY(2, 3, KEY_P),
 375         KEY(3, 3, KEY_J),
 376         KEY(4, 3, KEY_V),
 377         KEY(5, 3, KEY_LEFTSHIFT),
 378
 379         KEY(0, 4, KEY_ESC),
 380         KEY(1, 4, KEY_R),
 381         KEY(2, 4, KEY_A),
 382         KEY(3, 4, KEY_K),
 383         KEY(4, 4, KEY_B),
 384         KEY(5, 4, KEY_LEFTCTRL),
 385
 386         KEY(0, 5, KEY_TAB),
 387         KEY(1, 5, KEY_T),
 388         KEY(2, 5, KEY_S),
 389         KEY(3, 5, KEY_L),
 390         KEY(4, 5, KEY_N),
 391         KEY(5, 5, KEY_SPACE),
 392
 393         KEY(0, 6, KEY_STOPCD),
 394         KEY(1, 6, KEY_Y),
 395         KEY(2, 6, KEY_D),
 396         KEY(3, 6, KEY_BACKSPACE),
 397         KEY(4, 6, KEY_M),
 398         KEY(5, 6, KEY_COMMA),
 399
 400         KEY(0, 7, KEY_PLAYCD),
 401         KEY(1, 7, KEY_U),
 402         KEY(2, 7, KEY_F),
 403         KEY(3, 7, KEY_Z),
 404         KEY(4, 7, KEY_SEMICOLON),
 405         KEY(5, 7, KEY_DOT),
 406 };
 407
 408 static struct matrix_keymap_data z2_matrix_keymap_data = {
 409         .keymap                 = z2_matrix_keys,
 410         .keymap_size            = ARRAY_SIZE(z2_matrix_keys),
 411 };
 412
 413 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
 414         .matrix_key_rows        = 7,
 415         .matrix_key_cols        = 8,
 416         .matrix_keymap_data     = &z2_matrix_keymap_data,
 417
 418         .debounce_interval      = 30,
 419 };
 420
 421 static void __init z2_mkp_init(void)
 422 {
 423         pxa_set_keypad_info(&z2_keypad_platform_data);
 424 }
 425 #else
 426 static inline void z2_mkp_init(void) {}
 427 #endif
 428
 429 /******************************************************************************
 430  * GPIO keys
 431  ******************************************************************************/
 432 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 433 static struct gpio_keys_button z2_pxa_buttons[] = {
 434         {
 435                 .code           = KEY_POWER,
 436                 .gpio           = GPIO1_ZIPITZ2_POWER_BUTTON,
 437                 .active_low     = 0,
 438                 .desc           = "Power Button",
 439                 .wakeup         = 1,
 440                 .type           = EV_KEY,
 441         },
 442         {
 443                 .code           = SW_LID,
 444                 .gpio           = GPIO98_ZIPITZ2_LID_BUTTON,
 445                 .active_low     = 1,
 446                 .desc           = "Lid Switch",
 447                 .wakeup         = 0,
 448                 .type           = EV_SW,
 449         },
 450 };
 451
 452 static struct gpio_keys_platform_data z2_pxa_keys_data = {
 453         .buttons        = z2_pxa_buttons,
 454         .nbuttons       = ARRAY_SIZE(z2_pxa_buttons),
 455 };
 456
 457 static struct platform_device z2_pxa_keys = {
 458         .name   = "gpio-keys",
 459         .id     = -1,
 460         .dev    = {
 461                 .platform_data = &z2_pxa_keys_data,
 462         },
 463 };
 464
 465 static void __init z2_keys_init(void)
 466 {
 467         platform_device_register(&z2_pxa_keys);
 468 }
 469 #else
 470 static inline void z2_keys_init(void) {}
 471 #endif
 472
 473 /******************************************************************************
 474  * Battery
 475  ******************************************************************************/
 476 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
 477 static struct z2_battery_info batt_chip_info = {
 478         .batt_I2C_bus   = 0,
 479         .batt_I2C_addr  = 0x55,
 480         .batt_I2C_reg   = 2,
 481         .charge_gpio    = GPIO0_ZIPITZ2_AC_DETECT,
 482         .min_voltage    = 3475000,
 483         .max_voltage    = 4190000,
 484         .batt_div       = 59,
 485         .batt_mult      = 1000000,
 486         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LION,
 487         .batt_name      = "Z2",
 488 };
 489
 490 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
 491         {
 492                 I2C_BOARD_INFO("aer915", 0x55),
 493                 .platform_data  = &batt_chip_info,
 494         }, {
 495                 I2C_BOARD_INFO("wm8750", 0x1b),
 496         },
 497
 498 };
 499
 500 static void __init z2_i2c_init(void)
 501 {
 502         pxa_set_i2c_info(NULL);
 503         i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
 504 }
 505 #else
 506 static inline void z2_i2c_init(void) {}
 507 #endif
 508
 509 /******************************************************************************
 510  * SSP Devices - WiFi and LCD control
 511  ******************************************************************************/
 512 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 513 /* WiFi */
 514 static int z2_lbs_spi_setup(struct spi_device *spi)
 515 {
 516         int ret = 0;
 517
 518         ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
 519         if (ret)
 520                 goto err;
 521
 522         ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
 523         if (ret)
 524                 goto err2;
 525
 526         /* Wait until card is powered on */
 527         mdelay(180);
 528
 529         spi->bits_per_word = 16;
 530         spi->mode = SPI_MODE_2,
 531
 532         spi_setup(spi);
 533
 534         return 0;
 535
 536 err2:
 537         gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
 538 err:
 539         return ret;
 540 };
 541
 542 static int z2_lbs_spi_teardown(struct spi_device *spi)
 543 {
 544         gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
 545         gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
 546
 547         return 0;
 548 };
 549
 550 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
 551         .rx_threshold   = 8,
 552         .tx_threshold   = 8,
 553         .timeout        = 1000,
 554         .gpio_cs        = GPIO24_ZIPITZ2_WIFI_CS,
 555 };
 556
 557 static struct libertas_spi_platform_data z2_lbs_pdata = {
 558         .use_dummy_writes       = 1,
 559         .setup                  = z2_lbs_spi_setup,
 560         .teardown               = z2_lbs_spi_teardown,
 561 };
 562
 563 /* LCD */
 564 static struct pxa2xx_spi_chip lms283_chip_info = {
 565         .rx_threshold   = 1,
 566         .tx_threshold   = 1,
 567         .timeout        = 64,
 568         .gpio_cs        = GPIO88_ZIPITZ2_LCD_CS,
 569 };
 570
 571 static const struct lms283gf05_pdata lms283_pdata = {
 572         .reset_gpio     = GPIO19_ZIPITZ2_LCD_RESET,
 573 };
 574
 575 static struct spi_board_info spi_board_info[] __initdata = {
 576 {
 577         .modalias               = "libertas_spi",
 578         .platform_data          = &z2_lbs_pdata,
 579         .controller_data        = &z2_lbs_chip_info,
 580         .irq                    = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
 581         .max_speed_hz           = 13000000,
 582         .bus_num                = 1,
 583         .chip_select            = 0,
 584 },
 585 {
 586         .modalias               = "lms283gf05",
 587         .controller_data        = &lms283_chip_info,
 588         .platform_data          = &lms283_pdata,
 589         .max_speed_hz           = 400000,
 590         .bus_num                = 2,
 591         .chip_select            = 0,
 592 },
 593 };
 594
 595 static struct pxa2xx_spi_master pxa_ssp1_master_info = {
 596         .clock_enable   = CKEN_SSP,
 597         .num_chipselect = 1,
 598         .enable_dma     = 1,
 599 };
 600
 601 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
 602         .clock_enable   = CKEN_SSP2,
 603         .num_chipselect = 1,
 604 };
 605
 606 static void __init z2_spi_init(void)
 607 {
 608         pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
 609         pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 610         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
 611 }
 612 #else
 613 static inline void z2_spi_init(void) {}
 614 #endif
 615
 616 /******************************************************************************
 617  * Core power regulator
 618  ******************************************************************************/
 619 #if defined(CONFIG_REGULATOR_TPS65023) || \
 620         defined(CONFIG_REGULATOR_TPS65023_MODULE)
 621 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
 622         REGULATOR_SUPPLY("vcc_core", NULL),
 623 };
 624
 625 static struct regulator_init_data z2_tps65021_info[] = {
 626         {
 627                 .constraints = {
 628                         .name           = "vcc_core range",
 629                         .min_uV         = 800000,
 630                         .max_uV         = 1600000,
 631                         .always_on      = 1,
 632                         .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 633                 },
 634                 .consumer_supplies      = z2_tps65021_consumers,
 635                 .num_consumer_supplies  = ARRAY_SIZE(z2_tps65021_consumers),
 636         }, {
 637                 .constraints = {
 638                         .name           = "DCDC2",
 639                         .min_uV         = 3300000,
 640                         .max_uV         = 3300000,
 641                         .always_on      = 1,
 642                 },
 643         }, {
 644                 .constraints = {
 645                         .name           = "DCDC3",
 646                         .min_uV         = 1800000,
 647                         .max_uV         = 1800000,
 648                         .always_on      = 1,
 649                 },
 650         }, {
 651                 .constraints = {
 652                         .name           = "LDO1",
 653                         .min_uV         = 1000000,
 654                         .max_uV         = 3150000,
 655                         .always_on      = 1,
 656                 },
 657         }, {
 658                 .constraints = {
 659                         .name           = "LDO2",
 660                         .min_uV         = 1050000,
 661                         .max_uV         = 3300000,
 662                         .always_on      = 1,
 663                 },
 664         }
 665 };
 666
 667 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
 668         {
 669                 I2C_BOARD_INFO("tps65021", 0x48),
 670                 .platform_data  = &z2_tps65021_info,
 671         },
 672 };
 673
 674 static void __init z2_pmic_init(void)
 675 {
 676         pxa27x_set_i2c_power_info(NULL);
 677         i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
 678 }
 679 #else
 680 static inline void z2_pmic_init(void) {}
 681 #endif
 682
 683 #ifdef CONFIG_PM
 684 static void z2_power_off(void)
 685 {
 686         /* We're using deep sleep as poweroff, so clear PSPR to ensure that
 687          * bootloader will jump to its entry point in resume handler
 688          */
 689         PSPR = 0x0;
 690         local_irq_disable();
 691         pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
 692         pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
 693 }
 694 #else
 695 #define z2_power_off   NULL
 696 #endif
 697
 698 /******************************************************************************
 699  * Machine init
 700  ******************************************************************************/
 701 static void __init z2_init(void)
 702 {
 703         pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
 704
 705         pxa_set_ffuart_info(NULL);
 706         pxa_set_btuart_info(NULL);
 707         pxa_set_stuart_info(NULL);
 708
 709         z2_lcd_init();
 710         z2_mmc_init();
 711         z2_mkp_init();
 712         z2_i2c_init();
 713         z2_spi_init();
 714         z2_nor_init();
 715         z2_pwm_init();
 716         z2_leds_init();
 717         z2_keys_init();
 718         z2_pmic_init();
 719
 720         pm_power_off = z2_power_off;
 721 }
 722
 723 MACHINE_START(ZIPIT2, "Zipit Z2")
 724         .atag_offset    = 0x100,
 725         .map_io         = pxa27x_map_io,
 726         .nr_irqs        = PXA_NR_IRQS,
 727         .init_irq       = pxa27x_init_irq,
 728         .handle_irq     = pxa27x_handle_irq,
 729         .init_time      = pxa_timer_init,
 730         .init_machine   = z2_init,
 731         .restart        = pxa_restart,
 732 MACHINE_END