arch/arm/mach-pxa/hx4700.c

   1 /*
   2  * Support for HP iPAQ hx4700 PDAs.
   3  *
   4  * Copyright (c) 2008-2009 Philipp Zabel
   5  *
   6  * Based on code:
   7  *    Copyright (c) 2004 Hewlett-Packard Company.
   8  *    Copyright (c) 2005 SDG Systems, LLC
   9  *    Copyright (c) 2006 Anton Vorontsov <cbou@mail.ru>
  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
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/fb.h>
  22 #include <linux/gpio.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/lcd.h>
  26 #include <linux/mfd/htc-egpio.h>
  27 #include <linux/mfd/asic3.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <linux/pda_power.h>
  30 #include <linux/pwm_backlight.h>
  31 #include <linux/regulator/driver.h>
  32 #include <linux/regulator/gpio-regulator.h>
  33 #include <linux/regulator/machine.h>
  34 #include <linux/regulator/max1586.h>
  35 #include <linux/spi/ads7846.h>
  36 #include <linux/spi/spi.h>
  37 #include <linux/spi/pxa2xx_spi.h>
  38 #include <linux/usb/gpio_vbus.h>
  39 #include <linux/i2c/pxa-i2c.h>
  40
  41 #include <mach/hardware.h>
  42 #include <asm/mach-types.h>
  43 #include <asm/mach/arch.h>
  44
  45 #include <mach/pxa27x.h>
  46 #include <mach/hx4700.h>
  47 #include <mach/irda.h>
  48
  49 #include <sound/ak4641.h>
  50 #include <video/platform_lcd.h>
  51 #include <video/w100fb.h>
  52
  53 #include "devices.h"
  54 #include "generic.h"
  55
  56 /* Physical address space information */
  57
  58 #define ATI_W3220_PHYS  PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
  59 #define ASIC3_PHYS      PXA_CS3_PHYS
  60 #define ASIC3_SD_PHYS   (PXA_CS3_PHYS + 0x02000000)
  61
  62 static unsigned long hx4700_pin_config[] __initdata = {
  63
  64         /* SDRAM and Static Memory I/O Signals */
  65         GPIO20_nSDCS_2,
  66         GPIO21_nSDCS_3,
  67         GPIO15_nCS_1,
  68         GPIO78_nCS_2,   /* W3220 */
  69         GPIO79_nCS_3,   /* ASIC3 */
  70         GPIO80_nCS_4,
  71         GPIO33_nCS_5,   /* EGPIO, WLAN */
  72
  73         /* PC CARD */
  74         GPIO48_nPOE,
  75         GPIO49_nPWE,
  76         GPIO50_nPIOR,
  77         GPIO51_nPIOW,
  78         GPIO54_nPCE_2,
  79         GPIO55_nPREG,
  80         GPIO56_nPWAIT,
  81         GPIO57_nIOIS16,
  82         GPIO85_nPCE_1,
  83         GPIO104_PSKTSEL,
  84
  85         /* I2C */
  86         GPIO117_I2C_SCL,
  87         GPIO118_I2C_SDA,
  88
  89         /* FFUART (RS-232) */
  90         GPIO34_FFUART_RXD,
  91         GPIO35_FFUART_CTS,
  92         GPIO36_FFUART_DCD,
  93         GPIO37_FFUART_DSR,
  94         GPIO38_FFUART_RI,
  95         GPIO39_FFUART_TXD,
  96         GPIO40_FFUART_DTR,
  97         GPIO41_FFUART_RTS,
  98
  99         /* BTUART */
 100         GPIO42_BTUART_RXD,
 101         GPIO43_BTUART_TXD_LPM_LOW,
 102         GPIO44_BTUART_CTS,
 103         GPIO45_BTUART_RTS_LPM_LOW,
 104
 105         /* PWM 1 (Backlight) */
 106         GPIO17_PWM1_OUT,
 107
 108         /* I2S */
 109         GPIO28_I2S_BITCLK_OUT,
 110         GPIO29_I2S_SDATA_IN,
 111         GPIO30_I2S_SDATA_OUT,
 112         GPIO31_I2S_SYNC,
 113         GPIO113_I2S_SYSCLK,
 114
 115         /* SSP 1 (NavPoint) */
 116         GPIO23_SSP1_SCLK,
 117         GPIO24_SSP1_SFRM,
 118         GPIO25_SSP1_TXD,
 119         GPIO26_SSP1_RXD,
 120
 121         /* SSP 2 (TSC2046) */
 122         GPIO19_SSP2_SCLK,
 123         GPIO86_SSP2_RXD,
 124         GPIO87_SSP2_TXD,
 125         GPIO88_GPIO,
 126
 127         /* HX4700 specific input GPIOs */
 128         GPIO12_GPIO,    /* ASIC3_IRQ */
 129         GPIO13_GPIO,    /* W3220_IRQ */
 130         GPIO14_GPIO,    /* nWLAN_IRQ */
 131
 132         GPIO10_GPIO,    /* GSM_IRQ */
 133         GPIO13_GPIO,    /* CPLD_IRQ */
 134         GPIO107_GPIO,   /* DS1WM_IRQ */
 135         GPIO108_GPIO,   /* GSM_READY */
 136         GPIO58_GPIO,    /* TSC2046_nPENIRQ */
 137         GPIO66_GPIO,    /* nSDIO_IRQ */
 138 };
 139
 140 /*
 141  * IRDA
 142  */
 143
 144 static struct pxaficp_platform_data ficp_info = {
 145         .gpio_pwdown            = GPIO105_HX4700_nIR_ON,
 146         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 147 };
 148
 149 /*
 150  * GPIO Keys
 151  */
 152
 153 #define INIT_KEY(_code, _gpio, _active_low, _desc)      \
 154         {                                               \
 155                 .code       = KEY_##_code,              \
 156                 .gpio       = _gpio,                    \
 157                 .active_low = _active_low,              \
 158                 .desc       = _desc,                    \
 159                 .type       = EV_KEY,                   \
 160                 .wakeup     = 1,                        \
 161         }
 162
 163 static struct gpio_keys_button gpio_keys_buttons[] = {
 164         INIT_KEY(POWER,       GPIO0_HX4700_nKEY_POWER,   1, "Power button"),
 165         INIT_KEY(MAIL,        GPIO94_HX4700_KEY_MAIL,    0, "Mail button"),
 166         INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
 167         INIT_KEY(RECORD,      GPIOD6_nKEY_RECORD,        1, "Record button"),
 168         INIT_KEY(CALENDAR,    GPIOD1_nKEY_CALENDAR,      1, "Calendar button"),
 169         INIT_KEY(HOMEPAGE,    GPIOD3_nKEY_HOME,          1, "Home button"),
 170 };
 171
 172 static struct gpio_keys_platform_data gpio_keys_data = {
 173         .buttons = gpio_keys_buttons,
 174         .nbuttons = ARRAY_SIZE(gpio_keys_buttons),
 175 };
 176
 177 static struct platform_device gpio_keys = {
 178         .name = "gpio-keys",
 179         .dev  = {
 180                 .platform_data = &gpio_keys_data,
 181         },
 182         .id   = -1,
 183 };
 184
 185 /*
 186  * ASIC3
 187  */
 188
 189 static u16 asic3_gpio_config[] = {
 190         /* ASIC3 GPIO banks A and B along with some of C and D
 191            implement the buffering for the CF slot. */
 192         ASIC3_CONFIG_GPIO(0, 1, 1, 0),
 193         ASIC3_CONFIG_GPIO(1, 1, 1, 0),
 194         ASIC3_CONFIG_GPIO(2, 1, 1, 0),
 195         ASIC3_CONFIG_GPIO(3, 1, 1, 0),
 196         ASIC3_CONFIG_GPIO(4, 1, 1, 0),
 197         ASIC3_CONFIG_GPIO(5, 1, 1, 0),
 198         ASIC3_CONFIG_GPIO(6, 1, 1, 0),
 199         ASIC3_CONFIG_GPIO(7, 1, 1, 0),
 200         ASIC3_CONFIG_GPIO(8, 1, 1, 0),
 201         ASIC3_CONFIG_GPIO(9, 1, 1, 0),
 202         ASIC3_CONFIG_GPIO(10, 1, 1, 0),
 203         ASIC3_CONFIG_GPIO(11, 1, 1, 0),
 204         ASIC3_CONFIG_GPIO(12, 1, 1, 0),
 205         ASIC3_CONFIG_GPIO(13, 1, 1, 0),
 206         ASIC3_CONFIG_GPIO(14, 1, 1, 0),
 207         ASIC3_CONFIG_GPIO(15, 1, 1, 0),
 208
 209         ASIC3_CONFIG_GPIO(16, 1, 1, 0),
 210         ASIC3_CONFIG_GPIO(17, 1, 1, 0),
 211         ASIC3_CONFIG_GPIO(18, 1, 1, 0),
 212         ASIC3_CONFIG_GPIO(19, 1, 1, 0),
 213         ASIC3_CONFIG_GPIO(20, 1, 1, 0),
 214         ASIC3_CONFIG_GPIO(21, 1, 1, 0),
 215         ASIC3_CONFIG_GPIO(22, 1, 1, 0),
 216         ASIC3_CONFIG_GPIO(23, 1, 1, 0),
 217         ASIC3_CONFIG_GPIO(24, 1, 1, 0),
 218         ASIC3_CONFIG_GPIO(25, 1, 1, 0),
 219         ASIC3_CONFIG_GPIO(26, 1, 1, 0),
 220         ASIC3_CONFIG_GPIO(27, 1, 1, 0),
 221         ASIC3_CONFIG_GPIO(28, 1, 1, 0),
 222         ASIC3_CONFIG_GPIO(29, 1, 1, 0),
 223         ASIC3_CONFIG_GPIO(30, 1, 1, 0),
 224         ASIC3_CONFIG_GPIO(31, 1, 1, 0),
 225
 226         /* GPIOC - CF, LEDs, SD */
 227         ASIC3_GPIOC0_LED0,              /* red */
 228         ASIC3_GPIOC1_LED1,              /* green */
 229         ASIC3_GPIOC2_LED2,              /* blue */
 230         ASIC3_GPIOC4_CF_nCD,
 231         ASIC3_GPIOC5_nCIOW,
 232         ASIC3_GPIOC6_nCIOR,
 233         ASIC3_GPIOC7_nPCE_1,
 234         ASIC3_GPIOC8_nPCE_2,
 235         ASIC3_GPIOC9_nPOE,
 236         ASIC3_GPIOC10_nPWE,
 237         ASIC3_GPIOC11_PSKTSEL,
 238         ASIC3_GPIOC12_nPREG,
 239         ASIC3_GPIOC13_nPWAIT,
 240         ASIC3_GPIOC14_nPIOIS16,
 241         ASIC3_GPIOC15_nPIOR,
 242
 243         /* GPIOD: input GPIOs, CF */
 244         ASIC3_GPIOD11_nCIOIS16,
 245         ASIC3_GPIOD12_nCWAIT,
 246         ASIC3_GPIOD15_nPIOW,
 247 };
 248
 249 static struct asic3_led asic3_leds[ASIC3_NUM_LEDS] = {
 250         [0] = {
 251                 .name = "hx4700:amber",
 252                 .default_trigger = "ds2760-battery.0-charging-blink-full-solid",
 253         },
 254         [1] = {
 255                 .name = "hx4700:green",
 256                 .default_trigger = "unused",
 257         },
 258         [2] = {
 259                 .name = "hx4700:blue",
 260                 .default_trigger = "hx4700-radio",
 261         },
 262 };
 263
 264 static struct resource asic3_resources[] = {
 265         /* GPIO part */
 266         [0] = {
 267                 .start  = ASIC3_PHYS,
 268                 .end    = ASIC3_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
 269                 .flags  = IORESOURCE_MEM,
 270         },
 271         [1] = {
 272                 .start  = PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
 273                 .end    = PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
 274                 .flags  = IORESOURCE_IRQ,
 275         },
 276         /* SD part */
 277         [2] = {
 278                 .start  = ASIC3_SD_PHYS,
 279                 .end    = ASIC3_SD_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
 280                 .flags  = IORESOURCE_MEM,
 281         },
 282         [3] = {
 283                 .start  = PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
 284                 .end    = PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
 285                 .flags  = IORESOURCE_IRQ,
 286         },
 287 };
 288
 289 static struct asic3_platform_data asic3_platform_data = {
 290         .gpio_config     = asic3_gpio_config,
 291         .gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
 292         .irq_base        = IRQ_BOARD_START,
 293         .gpio_base       = HX4700_ASIC3_GPIO_BASE,
 294         .leds            = asic3_leds,
 295 };
 296
 297 static struct platform_device asic3 = {
 298         .name          = "asic3",
 299         .id            = -1,
 300         .resource      = asic3_resources,
 301         .num_resources = ARRAY_SIZE(asic3_resources),
 302         .dev = {
 303                 .platform_data = &asic3_platform_data,
 304         },
 305 };
 306
 307 /*
 308  * EGPIO
 309  */
 310
 311 static struct resource egpio_resources[] = {
 312         [0] = {
 313                 .start = PXA_CS5_PHYS,
 314                 .end   = PXA_CS5_PHYS + 0x4 - 1,
 315                 .flags = IORESOURCE_MEM,
 316         },
 317 };
 318
 319 static struct htc_egpio_chip egpio_chips[] = {
 320         [0] = {
 321                 .reg_start = 0,
 322                 .gpio_base = HX4700_EGPIO_BASE,
 323                 .num_gpios = 8,
 324                 .direction = HTC_EGPIO_OUTPUT,
 325         },
 326 };
 327
 328 static struct htc_egpio_platform_data egpio_info = {
 329         .reg_width = 16,
 330         .bus_width = 16,
 331         .chip      = egpio_chips,
 332         .num_chips = ARRAY_SIZE(egpio_chips),
 333 };
 334
 335 static struct platform_device egpio = {
 336         .name          = "htc-egpio",
 337         .id            = -1,
 338         .resource      = egpio_resources,
 339         .num_resources = ARRAY_SIZE(egpio_resources),
 340         .dev = {
 341                 .platform_data = &egpio_info,
 342         },
 343 };
 344
 345 /*
 346  * LCD - Sony display connected to ATI Imageon w3220
 347  */
 348
 349 static void sony_lcd_init(void)
 350 {
 351         gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
 352         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 353         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 354         gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
 355         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 356         mdelay(10);
 357         gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 358         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 359         mdelay(20);
 360
 361         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
 362         mdelay(5);
 363         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
 364
 365         /* FIXME: init w3220 registers here */
 366
 367         mdelay(5);
 368         gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
 369         mdelay(10);
 370         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
 371         mdelay(10);
 372         gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
 373         mdelay(10);
 374         gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
 375 }
 376
 377 static void sony_lcd_off(void)
 378 {
 379         gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 380         gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 381         mdelay(10);
 382         gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
 383         mdelay(10);
 384         gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 385         mdelay(10);
 386         gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 387 }
 388
 389 #ifdef CONFIG_PM
 390 static void w3220_lcd_suspend(struct w100fb_par *wfb)
 391 {
 392         sony_lcd_off();
 393 }
 394
 395 static void w3220_lcd_resume(struct w100fb_par *wfb)
 396 {
 397         sony_lcd_init();
 398 }
 399 #else
 400 #define w3220_lcd_resume        NULL
 401 #define w3220_lcd_suspend       NULL
 402 #endif
 403
 404 static struct w100_tg_info w3220_tg_info = {
 405         .suspend        = w3220_lcd_suspend,
 406         .resume         = w3220_lcd_resume,
 407 };
 408
 409 /*                               W3220_VGA              QVGA */
 410 static struct w100_gen_regs w3220_regs = {
 411         .lcd_format =        0x00000003,
 412         .lcdd_cntl1 =        0x00000000,
 413         .lcdd_cntl2 =        0x0003ffff,
 414         .genlcd_cntl1 =      0x00abf003,        /* 0x00fff003 */
 415         .genlcd_cntl2 =      0x00000003,
 416         .genlcd_cntl3 =      0x000102aa,
 417 };
 418
 419 static struct w100_mode w3220_modes[] = {
 420 {
 421         .xres           = 480,
 422         .yres           = 640,
 423         .left_margin    = 15,
 424         .right_margin   = 16,
 425         .upper_margin   = 8,
 426         .lower_margin   = 7,
 427         .crtc_ss        = 0x00000000,
 428         .crtc_ls        = 0xa1ff01f9,   /* 0x21ff01f9 */
 429         .crtc_gs        = 0xc0000000,   /* 0x40000000 */
 430         .crtc_vpos_gs   = 0x0000028f,
 431         .crtc_ps1_active = 0x00000000,  /* 0x41060010 */
 432         .crtc_rev       = 0,
 433         .crtc_dclk      = 0x80000000,
 434         .crtc_gclk      = 0x040a0104,
 435         .crtc_goe       = 0,
 436         .pll_freq       = 95,
 437         .pixclk_divider = 4,
 438         .pixclk_divider_rotated = 4,
 439         .pixclk_src     = CLK_SRC_PLL,
 440         .sysclk_divider = 0,
 441         .sysclk_src     = CLK_SRC_PLL,
 442 },
 443 {
 444         .xres           = 240,
 445         .yres           = 320,
 446         .left_margin    = 9,
 447         .right_margin   = 8,
 448         .upper_margin   = 5,
 449         .lower_margin   = 4,
 450         .crtc_ss        = 0x80150014,
 451         .crtc_ls        = 0xa0fb00f7,
 452         .crtc_gs        = 0xc0080007,
 453         .crtc_vpos_gs   = 0x00080007,
 454         .crtc_rev       = 0x0000000a,
 455         .crtc_dclk      = 0x81700030,
 456         .crtc_gclk      = 0x8015010f,
 457         .crtc_goe       = 0x00000000,
 458         .pll_freq       = 95,
 459         .pixclk_divider = 4,
 460         .pixclk_divider_rotated = 4,
 461         .pixclk_src     = CLK_SRC_PLL,
 462         .sysclk_divider = 0,
 463         .sysclk_src     = CLK_SRC_PLL,
 464 },
 465 };
 466
 467 struct w100_mem_info w3220_mem_info = {
 468         .ext_cntl        = 0x09640011,
 469         .sdram_mode_reg  = 0x00600021,
 470         .ext_timing_cntl = 0x1a001545,  /* 0x15001545 */
 471         .io_cntl         = 0x7ddd7333,
 472         .size            = 0x1fffff,
 473 };
 474
 475 struct w100_bm_mem_info w3220_bm_mem_info = {
 476         .ext_mem_bw = 0x50413e01,
 477         .offset = 0,
 478         .ext_timing_ctl = 0x00043f7f,
 479         .ext_cntl = 0x00000010,
 480         .mode_reg = 0x00250000,
 481         .io_cntl = 0x0fff0000,
 482         .config = 0x08301480,
 483 };
 484
 485 static struct w100_gpio_regs w3220_gpio_info = {
 486         .init_data1 = 0xdfe00100,       /* GPIO_DATA */
 487         .gpio_dir1  = 0xffff0000,       /* GPIO_CNTL1 */
 488         .gpio_oe1   = 0x00000000,       /* GPIO_CNTL2 */
 489         .init_data2 = 0x00000000,       /* GPIO_DATA2 */
 490         .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
 491         .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
 492 };
 493
 494 static struct w100fb_mach_info w3220_info = {
 495         .tg        = &w3220_tg_info,
 496         .mem       = &w3220_mem_info,
 497         .bm_mem    = &w3220_bm_mem_info,
 498         .gpio      = &w3220_gpio_info,
 499         .regs      = &w3220_regs,
 500         .modelist  = w3220_modes,
 501         .num_modes = 2,
 502         .xtal_freq = 16000000,
 503 };
 504
 505 static struct resource w3220_resources[] = {
 506         [0] = {
 507                 .start  = ATI_W3220_PHYS,
 508                 .end    = ATI_W3220_PHYS + 0x00ffffff,
 509                 .flags  = IORESOURCE_MEM,
 510         },
 511 };
 512
 513 static struct platform_device w3220 = {
 514         .name   = "w100fb",
 515         .id     = -1,
 516         .dev    = {
 517                 .platform_data = &w3220_info,
 518         },
 519         .num_resources = ARRAY_SIZE(w3220_resources),
 520         .resource      = w3220_resources,
 521 };
 522
 523 static void hx4700_lcd_set_power(struct plat_lcd_data *pd, unsigned int power)
 524 {
 525         if (power)
 526                 sony_lcd_init();
 527         else
 528                 sony_lcd_off();
 529 }
 530
 531 static struct plat_lcd_data hx4700_lcd_data = {
 532         .set_power = hx4700_lcd_set_power,
 533 };
 534
 535 static struct platform_device hx4700_lcd = {
 536         .name = "platform-lcd",
 537         .id   = -1,
 538         .dev  = {
 539                 .platform_data = &hx4700_lcd_data,
 540                 .parent        = &w3220.dev,
 541         },
 542 };
 543
 544 /*
 545  * Backlight
 546  */
 547
 548 static struct platform_pwm_backlight_data backlight_data = {
 549         .pwm_id         = 1,
 550         .max_brightness = 200,
 551         .dft_brightness = 100,
 552         .pwm_period_ns  = 30923,
 553 };
 554
 555 static struct platform_device backlight = {
 556         .name = "pwm-backlight",
 557         .id   = -1,
 558         .dev  = {
 559                 .parent        = &pxa27x_device_pwm1.dev,
 560                 .platform_data = &backlight_data,
 561         },
 562 };
 563
 564 /*
 565  * USB "Transceiver"
 566  */
 567
 568 static struct gpio_vbus_mach_info gpio_vbus_info = {
 569         .gpio_pullup        = GPIO76_HX4700_USBC_PUEN,
 570         .gpio_vbus          = GPIOD14_nUSBC_DETECT,
 571         .gpio_vbus_inverted = 1,
 572 };
 573
 574 static struct platform_device gpio_vbus = {
 575         .name          = "gpio-vbus",
 576         .id            = -1,
 577         .dev = {
 578                 .platform_data = &gpio_vbus_info,
 579         },
 580 };
 581
 582 /*
 583  * Touchscreen - TSC2046 connected to SSP2
 584  */
 585
 586 static const struct ads7846_platform_data tsc2046_info = {
 587         .model            = 7846,
 588         .vref_delay_usecs = 100,
 589         .pressure_max     = 1024,
 590         .debounce_max     = 10,
 591         .debounce_tol     = 3,
 592         .debounce_rep     = 1,
 593         .gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
 594 };
 595
 596 static struct pxa2xx_spi_chip tsc2046_chip = {
 597         .tx_threshold = 1,
 598         .rx_threshold = 2,
 599         .timeout      = 64,
 600         .gpio_cs      = GPIO88_HX4700_TSC2046_CS,
 601 };
 602
 603 static struct spi_board_info tsc2046_board_info[] __initdata = {
 604         {
 605                 .modalias        = "ads7846",
 606                 .bus_num         = 2,
 607                 .max_speed_hz    = 2600000, /* 100 kHz sample rate */
 608                 .irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
 609                 .platform_data   = &tsc2046_info,
 610                 .controller_data = &tsc2046_chip,
 611         },
 612 };
 613
 614 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
 615         .num_chipselect = 1,
 616         .clock_enable   = CKEN_SSP2,
 617         .enable_dma     = 1,
 618 };
 619
 620 /*
 621  * External power
 622  */
 623
 624 static int power_supply_init(struct device *dev)
 625 {
 626         return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
 627 }
 628
 629 static int hx4700_is_ac_online(void)
 630 {
 631         return !gpio_get_value(GPIOD9_nAC_IN);
 632 }
 633
 634 static void power_supply_exit(struct device *dev)
 635 {
 636         gpio_free(GPIOD9_nAC_IN);
 637 }
 638
 639 static char *hx4700_supplicants[] = {
 640         "ds2760-battery.0", "backup-battery"
 641 };
 642
 643 static struct pda_power_pdata power_supply_info = {
 644         .init            = power_supply_init,
 645         .is_ac_online    = hx4700_is_ac_online,
 646         .exit            = power_supply_exit,
 647         .supplied_to     = hx4700_supplicants,
 648         .num_supplicants = ARRAY_SIZE(hx4700_supplicants),
 649 };
 650
 651 static struct resource power_supply_resources[] = {
 652         [0] = {
 653                 .name  = "ac",
 654                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 655                          IORESOURCE_IRQ_LOWEDGE,
 656                 .start = PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN),
 657                 .end   = PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN),
 658         },
 659         [1] = {
 660                 .name  = "usb",
 661                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 662                          IORESOURCE_IRQ_LOWEDGE,
 663                 .start = PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT),
 664                 .end   = PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT),
 665         },
 666 };
 667
 668 static struct platform_device power_supply = {
 669         .name = "pda-power",
 670         .id   = -1,
 671         .dev  = {
 672                 .platform_data = &power_supply_info,
 673         },
 674         .resource      = power_supply_resources,
 675         .num_resources = ARRAY_SIZE(power_supply_resources),
 676 };
 677
 678 /*
 679  * Battery charger
 680  */
 681
 682 static struct regulator_consumer_supply bq24022_consumers[] = {
 683         {
 684                 .supply = "vbus_draw",
 685         },
 686         {
 687                 .supply = "ac_draw",
 688         },
 689 };
 690
 691 static struct regulator_init_data bq24022_init_data = {
 692         .constraints = {
 693                 .max_uA         = 500000,
 694                 .valid_ops_mask = REGULATOR_CHANGE_CURRENT|REGULATOR_CHANGE_STATUS,
 695         },
 696         .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
 697         .consumer_supplies      = bq24022_consumers,
 698 };
 699
 700 static struct gpio bq24022_gpios[] = {
 701         { GPIO96_HX4700_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
 702 };
 703
 704 static struct gpio_regulator_state bq24022_states[] = {
 705         { .value = 100000, .gpios = (0 << 0) },
 706         { .value = 500000, .gpios = (1 << 0) },
 707 };
 708
 709 static struct gpio_regulator_config bq24022_info = {
 710         .supply_name = "bq24022",
 711
 712         .enable_gpio = GPIO72_HX4700_BQ24022_nCHARGE_EN,
 713         .enable_high = 0,
 714         .enabled_at_boot = 0,
 715
 716         .gpios = bq24022_gpios,
 717         .nr_gpios = ARRAY_SIZE(bq24022_gpios),
 718
 719         .states = bq24022_states,
 720         .nr_states = ARRAY_SIZE(bq24022_states),
 721
 722         .type = REGULATOR_CURRENT,
 723         .init_data = &bq24022_init_data,
 724 };
 725
 726 static struct platform_device bq24022 = {
 727         .name = "gpio-regulator",
 728         .id   = -1,
 729         .dev  = {
 730                 .platform_data = &bq24022_info,
 731         },
 732 };
 733
 734 /*
 735  * StrataFlash
 736  */
 737
 738 static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
 739 {
 740         gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
 741 }
 742
 743 static struct resource strataflash_resource[] = {
 744         [0] = DEFINE_RES_MEM(PXA_CS0_PHYS, SZ_64M),
 745         [1] = DEFINE_RES_MEM(PXA_CS0_PHYS + SZ_64M, SZ_64M),
 746 };
 747
 748 static struct physmap_flash_data strataflash_data = {
 749         .width = 4,
 750         .set_vpp = hx4700_set_vpp,
 751 };
 752
 753 static struct platform_device strataflash = {
 754         .name          = "physmap-flash",
 755         .id            = -1,
 756         .resource      = strataflash_resource,
 757         .num_resources = ARRAY_SIZE(strataflash_resource),
 758         .dev = {
 759                 .platform_data = &strataflash_data,
 760         },
 761 };
 762
 763 /*
 764  * Maxim MAX1587A on PI2C
 765  */
 766
 767 static struct regulator_consumer_supply max1587a_consumer = {
 768         .supply = "vcc_core",
 769 };
 770
 771 static struct regulator_init_data max1587a_v3_info = {
 772         .constraints = {
 773                 .name = "vcc_core range",
 774                 .min_uV =  900000,
 775                 .max_uV = 1705000,
 776                 .always_on = 1,
 777                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 778         },
 779         .num_consumer_supplies = 1,
 780         .consumer_supplies     = &max1587a_consumer,
 781 };
 782
 783 static struct max1586_subdev_data max1587a_subdev = {
 784         .name = "vcc_core",
 785         .id   = MAX1586_V3,
 786         .platform_data = &max1587a_v3_info,
 787 };
 788
 789 static struct max1586_platform_data max1587a_info = {
 790         .num_subdevs = 1,
 791         .subdevs     = &max1587a_subdev,
 792         .v3_gain     = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
 793 };
 794
 795 static struct i2c_board_info __initdata pi2c_board_info[] = {
 796         {
 797                 I2C_BOARD_INFO("max1586", 0x14),
 798                 .platform_data = &max1587a_info,
 799         },
 800 };
 801
 802 /*
 803  * Asahi Kasei AK4641 on I2C
 804  */
 805
 806 static struct ak4641_platform_data ak4641_info = {
 807         .gpio_power = GPIO27_HX4700_CODEC_ON,
 808         .gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
 809 };
 810
 811 static struct i2c_board_info i2c_board_info[] __initdata = {
 812         {
 813                 I2C_BOARD_INFO("ak4641", 0x12),
 814                 .platform_data = &ak4641_info,
 815         },
 816 };
 817
 818 static struct platform_device audio = {
 819         .name   = "hx4700-audio",
 820         .id     = -1,
 821 };
 822
 823
 824 /*
 825  * Platform devices
 826  */
 827
 828 static struct platform_device *devices[] __initdata = {
 829         &asic3,
 830         &gpio_keys,
 831         &backlight,
 832         &w3220,
 833         &hx4700_lcd,
 834         &egpio,
 835         &bq24022,
 836         &gpio_vbus,
 837         &power_supply,
 838         &strataflash,
 839         &audio,
 840 };
 841
 842 static struct gpio global_gpios[] = {
 843         { GPIO12_HX4700_ASIC3_IRQ, GPIOF_IN, "ASIC3_IRQ" },
 844         { GPIO13_HX4700_W3220_IRQ, GPIOF_IN, "W3220_IRQ" },
 845         { GPIO14_HX4700_nWLAN_IRQ, GPIOF_IN, "WLAN_IRQ" },
 846         { GPIO59_HX4700_LCD_PC1,          GPIOF_OUT_INIT_HIGH, "LCD_PC1" },
 847         { GPIO62_HX4700_LCD_nRESET,       GPIOF_OUT_INIT_HIGH, "LCD_RESET" },
 848         { GPIO70_HX4700_LCD_SLIN1,        GPIOF_OUT_INIT_HIGH, "LCD_SLIN1" },
 849         { GPIO84_HX4700_LCD_SQN,          GPIOF_OUT_INIT_HIGH, "LCD_SQN" },
 850         { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
 851         { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
 852         { GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
 853         { GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
 854         { GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
 855 };
 856
 857 static void __init hx4700_init(void)
 858 {
 859         int ret;
 860
 861         pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
 862         ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
 863         if (ret)
 864                 pr_err ("hx4700: Failed to request GPIOs.\n");
 865
 866         pxa_set_ffuart_info(NULL);
 867         pxa_set_btuart_info(NULL);
 868         pxa_set_stuart_info(NULL);
 869
 870         platform_add_devices(devices, ARRAY_SIZE(devices));
 871
 872         pxa_set_ficp_info(&ficp_info);
 873         pxa27x_set_i2c_power_info(NULL);
 874         pxa_set_i2c_info(NULL);
 875         i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
 876         i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
 877         pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 878         spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
 879
 880         gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
 881         mdelay(10);
 882         gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
 883         mdelay(10);
 884 }
 885
 886 MACHINE_START(H4700, "HP iPAQ HX4700")
 887         .atag_offset  = 0x100,
 888         .map_io       = pxa27x_map_io,
 889         .nr_irqs      = HX4700_NR_IRQS,
 890         .init_irq     = pxa27x_init_irq,
 891         .handle_irq     = pxa27x_handle_irq,
 892         .init_machine = hx4700_init,
 893         .timer        = &pxa_timer,
 894         .restart        = pxa_restart,
 895 MACHINE_END