linux/arch/arm/mach-pxa/hx4700.c
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   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/input/navpoint.h>
  26#include <linux/lcd.h>
  27#include <linux/mfd/htc-egpio.h>
  28#include <linux/mfd/asic3.h>
  29#include <linux/mtd/physmap.h>
  30#include <linux/pda_power.h>
  31#include <linux/pwm.h>
  32#include <linux/pwm_backlight.h>
  33#include <linux/regulator/driver.h>
  34#include <linux/regulator/gpio-regulator.h>
  35#include <linux/regulator/machine.h>
  36#include <linux/regulator/max1586.h>
  37#include <linux/spi/ads7846.h>
  38#include <linux/spi/spi.h>
  39#include <linux/spi/pxa2xx_spi.h>
  40#include <linux/usb/gpio_vbus.h>
  41#include <linux/i2c/pxa-i2c.h>
  42
  43#include <mach/hardware.h>
  44#include <asm/mach-types.h>
  45#include <asm/mach/arch.h>
  46
  47#include <mach/pxa27x.h>
  48#include <mach/hx4700.h>
  49#include <linux/platform_data/irda-pxaficp.h>
  50
  51#include <sound/ak4641.h>
  52#include <video/platform_lcd.h>
  53#include <video/w100fb.h>
  54
  55#include "devices.h"
  56#include "generic.h"
  57
  58/* Physical address space information */
  59
  60#define ATI_W3220_PHYS  PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
  61#define ASIC3_PHYS      PXA_CS3_PHYS
  62#define ASIC3_SD_PHYS   (PXA_CS3_PHYS + 0x02000000)
  63
  64static unsigned long hx4700_pin_config[] __initdata = {
  65
  66        /* SDRAM and Static Memory I/O Signals */
  67        GPIO20_nSDCS_2,
  68        GPIO21_nSDCS_3,
  69        GPIO15_nCS_1,
  70        GPIO78_nCS_2,   /* W3220 */
  71        GPIO79_nCS_3,   /* ASIC3 */
  72        GPIO80_nCS_4,
  73        GPIO33_nCS_5,   /* EGPIO, WLAN */
  74
  75        /* PC CARD */
  76        GPIO48_nPOE,
  77        GPIO49_nPWE,
  78        GPIO50_nPIOR,
  79        GPIO51_nPIOW,
  80        GPIO54_nPCE_2,
  81        GPIO55_nPREG,
  82        GPIO56_nPWAIT,
  83        GPIO57_nIOIS16,
  84        GPIO85_nPCE_1,
  85        GPIO104_PSKTSEL,
  86
  87        /* I2C */
  88        GPIO117_I2C_SCL,
  89        GPIO118_I2C_SDA,
  90
  91        /* FFUART (RS-232) */
  92        GPIO34_FFUART_RXD,
  93        GPIO35_FFUART_CTS,
  94        GPIO36_FFUART_DCD,
  95        GPIO37_FFUART_DSR,
  96        GPIO38_FFUART_RI,
  97        GPIO39_FFUART_TXD,
  98        GPIO40_FFUART_DTR,
  99        GPIO41_FFUART_RTS,
 100
 101        /* BTUART */
 102        GPIO42_BTUART_RXD,
 103        GPIO43_BTUART_TXD_LPM_LOW,
 104        GPIO44_BTUART_CTS,
 105        GPIO45_BTUART_RTS_LPM_LOW,
 106
 107        /* STUART (IRDA) */
 108        GPIO46_STUART_RXD,
 109        GPIO47_STUART_TXD,
 110
 111        /* PWM 1 (Backlight) */
 112        GPIO17_PWM1_OUT,
 113
 114        /* I2S */
 115        GPIO28_I2S_BITCLK_OUT,
 116        GPIO29_I2S_SDATA_IN,
 117        GPIO30_I2S_SDATA_OUT,
 118        GPIO31_I2S_SYNC,
 119        GPIO113_I2S_SYSCLK,
 120
 121        /* SSP 1 (NavPoint) */
 122        GPIO23_SSP1_SCLK_IN,
 123        GPIO24_SSP1_SFRM,
 124        GPIO25_SSP1_TXD,
 125        GPIO26_SSP1_RXD,
 126
 127        /* SSP 2 (TSC2046) */
 128        GPIO19_SSP2_SCLK,
 129        GPIO86_SSP2_RXD,
 130        GPIO87_SSP2_TXD,
 131        GPIO88_GPIO | MFP_LPM_DRIVE_HIGH,       /* TSC2046_CS */
 132
 133        /* BQ24022 Regulator */
 134        GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_nCHARGE_EN */
 135        GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_ISET2 */
 136
 137        /* HX4700 specific input GPIOs */
 138        GPIO12_GPIO | WAKEUP_ON_EDGE_RISE,      /* ASIC3_IRQ */
 139        GPIO13_GPIO,    /* W3220_IRQ */
 140        GPIO14_GPIO,    /* nWLAN_IRQ */
 141
 142        /* HX4700 specific output GPIOs */
 143        GPIO61_GPIO | MFP_LPM_DRIVE_HIGH,       /* W3220_nRESET */
 144        GPIO71_GPIO | MFP_LPM_DRIVE_HIGH,       /* ASIC3_nRESET */
 145        GPIO81_GPIO | MFP_LPM_DRIVE_HIGH,       /* CPU_GP_nRESET */
 146        GPIO116_GPIO | MFP_LPM_DRIVE_HIGH,      /* CPU_HW_nRESET */
 147        GPIO102_GPIO | MFP_LPM_DRIVE_LOW,       /* SYNAPTICS_POWER_ON */
 148
 149        GPIO10_GPIO,    /* GSM_IRQ */
 150        GPIO13_GPIO,    /* CPLD_IRQ */
 151        GPIO107_GPIO,   /* DS1WM_IRQ */
 152        GPIO108_GPIO,   /* GSM_READY */
 153        GPIO58_GPIO,    /* TSC2046_nPENIRQ */
 154        GPIO66_GPIO,    /* nSDIO_IRQ */
 155};
 156
 157/*
 158 * IRDA
 159 */
 160
 161static struct pxaficp_platform_data ficp_info = {
 162        .gpio_pwdown            = GPIO105_HX4700_nIR_ON,
 163        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 164};
 165
 166/*
 167 * GPIO Keys
 168 */
 169
 170#define INIT_KEY(_code, _gpio, _active_low, _desc)      \
 171        {                                               \
 172                .code       = KEY_##_code,              \
 173                .gpio       = _gpio,                    \
 174                .active_low = _active_low,              \
 175                .desc       = _desc,                    \
 176                .type       = EV_KEY,                   \
 177                .wakeup     = 1,                        \
 178        }
 179
 180static struct gpio_keys_button gpio_keys_buttons[] = {
 181        INIT_KEY(POWER,       GPIO0_HX4700_nKEY_POWER,   1, "Power button"),
 182        INIT_KEY(MAIL,        GPIO94_HX4700_KEY_MAIL,    0, "Mail button"),
 183        INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
 184        INIT_KEY(RECORD,      GPIOD6_nKEY_RECORD,        1, "Record button"),
 185        INIT_KEY(CALENDAR,    GPIOD1_nKEY_CALENDAR,      1, "Calendar button"),
 186        INIT_KEY(HOMEPAGE,    GPIOD3_nKEY_HOME,          1, "Home button"),
 187};
 188
 189static struct gpio_keys_platform_data gpio_keys_data = {
 190        .buttons = gpio_keys_buttons,
 191        .nbuttons = ARRAY_SIZE(gpio_keys_buttons),
 192};
 193
 194static struct platform_device gpio_keys = {
 195        .name = "gpio-keys",
 196        .dev  = {
 197                .platform_data = &gpio_keys_data,
 198        },
 199        .id   = -1,
 200};
 201
 202/*
 203 * Synaptics NavPoint connected to SSP1
 204 */
 205
 206static struct navpoint_platform_data navpoint_platform_data = {
 207        .port   = 1,
 208        .gpio   = GPIO102_HX4700_SYNAPTICS_POWER_ON,
 209};
 210
 211static struct platform_device navpoint = {
 212        .name   = "navpoint",
 213        .id     = -1,
 214        .dev = {
 215                .platform_data = &navpoint_platform_data,
 216        },
 217};
 218
 219/*
 220 * ASIC3
 221 */
 222
 223static u16 asic3_gpio_config[] = {
 224        /* ASIC3 GPIO banks A and B along with some of C and D
 225           implement the buffering for the CF slot. */
 226        ASIC3_CONFIG_GPIO(0, 1, 1, 0),
 227        ASIC3_CONFIG_GPIO(1, 1, 1, 0),
 228        ASIC3_CONFIG_GPIO(2, 1, 1, 0),
 229        ASIC3_CONFIG_GPIO(3, 1, 1, 0),
 230        ASIC3_CONFIG_GPIO(4, 1, 1, 0),
 231        ASIC3_CONFIG_GPIO(5, 1, 1, 0),
 232        ASIC3_CONFIG_GPIO(6, 1, 1, 0),
 233        ASIC3_CONFIG_GPIO(7, 1, 1, 0),
 234        ASIC3_CONFIG_GPIO(8, 1, 1, 0),
 235        ASIC3_CONFIG_GPIO(9, 1, 1, 0),
 236        ASIC3_CONFIG_GPIO(10, 1, 1, 0),
 237        ASIC3_CONFIG_GPIO(11, 1, 1, 0),
 238        ASIC3_CONFIG_GPIO(12, 1, 1, 0),
 239        ASIC3_CONFIG_GPIO(13, 1, 1, 0),
 240        ASIC3_CONFIG_GPIO(14, 1, 1, 0),
 241        ASIC3_CONFIG_GPIO(15, 1, 1, 0),
 242
 243        ASIC3_CONFIG_GPIO(16, 1, 1, 0),
 244        ASIC3_CONFIG_GPIO(17, 1, 1, 0),
 245        ASIC3_CONFIG_GPIO(18, 1, 1, 0),
 246        ASIC3_CONFIG_GPIO(19, 1, 1, 0),
 247        ASIC3_CONFIG_GPIO(20, 1, 1, 0),
 248        ASIC3_CONFIG_GPIO(21, 1, 1, 0),
 249        ASIC3_CONFIG_GPIO(22, 1, 1, 0),
 250        ASIC3_CONFIG_GPIO(23, 1, 1, 0),
 251        ASIC3_CONFIG_GPIO(24, 1, 1, 0),
 252        ASIC3_CONFIG_GPIO(25, 1, 1, 0),
 253        ASIC3_CONFIG_GPIO(26, 1, 1, 0),
 254        ASIC3_CONFIG_GPIO(27, 1, 1, 0),
 255        ASIC3_CONFIG_GPIO(28, 1, 1, 0),
 256        ASIC3_CONFIG_GPIO(29, 1, 1, 0),
 257        ASIC3_CONFIG_GPIO(30, 1, 1, 0),
 258        ASIC3_CONFIG_GPIO(31, 1, 1, 0),
 259
 260        /* GPIOC - CF, LEDs, SD */
 261        ASIC3_GPIOC0_LED0,              /* red */
 262        ASIC3_GPIOC1_LED1,              /* green */
 263        ASIC3_GPIOC2_LED2,              /* blue */
 264        ASIC3_GPIOC5_nCIOW,
 265        ASIC3_GPIOC6_nCIOR,
 266        ASIC3_GPIOC7_nPCE_1,
 267        ASIC3_GPIOC8_nPCE_2,
 268        ASIC3_GPIOC9_nPOE,
 269        ASIC3_GPIOC10_nPWE,
 270        ASIC3_GPIOC11_PSKTSEL,
 271        ASIC3_GPIOC12_nPREG,
 272        ASIC3_GPIOC13_nPWAIT,
 273        ASIC3_GPIOC14_nPIOIS16,
 274        ASIC3_GPIOC15_nPIOR,
 275
 276        /* GPIOD: input GPIOs, CF */
 277        ASIC3_GPIOD4_CF_nCD,
 278        ASIC3_GPIOD11_nCIOIS16,
 279        ASIC3_GPIOD12_nCWAIT,
 280        ASIC3_GPIOD15_nPIOW,
 281};
 282
 283static struct asic3_led asic3_leds[ASIC3_NUM_LEDS] = {
 284        [0] = {
 285                .name = "hx4700:amber",
 286                .default_trigger = "ds2760-battery.0-charging-blink-full-solid",
 287        },
 288        [1] = {
 289                .name = "hx4700:green",
 290                .default_trigger = "unused",
 291        },
 292        [2] = {
 293                .name = "hx4700:blue",
 294                .default_trigger = "hx4700-radio",
 295        },
 296};
 297
 298static struct resource asic3_resources[] = {
 299        /* GPIO part */
 300        [0] = DEFINE_RES_MEM(ASIC3_PHYS, ASIC3_MAP_SIZE_16BIT),
 301        [1] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ)),
 302        /* SD part */
 303        [2] = DEFINE_RES_MEM(ASIC3_SD_PHYS, ASIC3_MAP_SIZE_16BIT),
 304        [3] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ)),
 305};
 306
 307static struct asic3_platform_data asic3_platform_data = {
 308        .gpio_config     = asic3_gpio_config,
 309        .gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
 310        .irq_base        = IRQ_BOARD_START,
 311        .gpio_base       = HX4700_ASIC3_GPIO_BASE,
 312        .clock_rate      = 4000000,
 313        .leds            = asic3_leds,
 314};
 315
 316static struct platform_device asic3 = {
 317        .name          = "asic3",
 318        .id            = -1,
 319        .resource      = asic3_resources,
 320        .num_resources = ARRAY_SIZE(asic3_resources),
 321        .dev = {
 322                .platform_data = &asic3_platform_data,
 323        },
 324};
 325
 326/*
 327 * EGPIO
 328 */
 329
 330static struct resource egpio_resources[] = {
 331        [0] = DEFINE_RES_MEM(PXA_CS5_PHYS, 0x4),
 332};
 333
 334static struct htc_egpio_chip egpio_chips[] = {
 335        [0] = {
 336                .reg_start = 0,
 337                .gpio_base = HX4700_EGPIO_BASE,
 338                .num_gpios = 8,
 339                .direction = HTC_EGPIO_OUTPUT,
 340        },
 341};
 342
 343static struct htc_egpio_platform_data egpio_info = {
 344        .reg_width = 16,
 345        .bus_width = 16,
 346        .chip      = egpio_chips,
 347        .num_chips = ARRAY_SIZE(egpio_chips),
 348};
 349
 350static struct platform_device egpio = {
 351        .name          = "htc-egpio",
 352        .id            = -1,
 353        .resource      = egpio_resources,
 354        .num_resources = ARRAY_SIZE(egpio_resources),
 355        .dev = {
 356                .platform_data = &egpio_info,
 357        },
 358};
 359
 360/*
 361 * LCD - Sony display connected to ATI Imageon w3220
 362 */
 363
 364static void sony_lcd_init(void)
 365{
 366        gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
 367        gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 368        gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 369        gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
 370        gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 371        mdelay(10);
 372        gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 373        gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 374        mdelay(20);
 375
 376        gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
 377        mdelay(5);
 378        gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
 379
 380        /* FIXME: init w3220 registers here */
 381
 382        mdelay(5);
 383        gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
 384        mdelay(10);
 385        gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
 386        mdelay(10);
 387        gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
 388        mdelay(10);
 389        gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
 390}
 391
 392static void sony_lcd_off(void)
 393{
 394        gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
 395        gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
 396        mdelay(10);
 397        gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
 398        mdelay(10);
 399        gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
 400        mdelay(10);
 401        gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
 402}
 403
 404#ifdef CONFIG_PM
 405static void w3220_lcd_suspend(struct w100fb_par *wfb)
 406{
 407        sony_lcd_off();
 408}
 409
 410static void w3220_lcd_resume(struct w100fb_par *wfb)
 411{
 412        sony_lcd_init();
 413}
 414#else
 415#define w3220_lcd_resume        NULL
 416#define w3220_lcd_suspend       NULL
 417#endif
 418
 419static struct w100_tg_info w3220_tg_info = {
 420        .suspend        = w3220_lcd_suspend,
 421        .resume         = w3220_lcd_resume,
 422};
 423
 424/*                               W3220_VGA              QVGA */
 425static struct w100_gen_regs w3220_regs = {
 426        .lcd_format =        0x00000003,
 427        .lcdd_cntl1 =        0x00000000,
 428        .lcdd_cntl2 =        0x0003ffff,
 429        .genlcd_cntl1 =      0x00abf003,        /* 0x00fff003 */
 430        .genlcd_cntl2 =      0x00000003,
 431        .genlcd_cntl3 =      0x000102aa,
 432};
 433
 434static struct w100_mode w3220_modes[] = {
 435{
 436        .xres           = 480,
 437        .yres           = 640,
 438        .left_margin    = 15,
 439        .right_margin   = 16,
 440        .upper_margin   = 8,
 441        .lower_margin   = 7,
 442        .crtc_ss        = 0x00000000,
 443        .crtc_ls        = 0xa1ff01f9,   /* 0x21ff01f9 */
 444        .crtc_gs        = 0xc0000000,   /* 0x40000000 */
 445        .crtc_vpos_gs   = 0x0000028f,
 446        .crtc_ps1_active = 0x00000000,  /* 0x41060010 */
 447        .crtc_rev       = 0,
 448        .crtc_dclk      = 0x80000000,
 449        .crtc_gclk      = 0x040a0104,
 450        .crtc_goe       = 0,
 451        .pll_freq       = 95,
 452        .pixclk_divider = 4,
 453        .pixclk_divider_rotated = 4,
 454        .pixclk_src     = CLK_SRC_PLL,
 455        .sysclk_divider = 0,
 456        .sysclk_src     = CLK_SRC_PLL,
 457},
 458{
 459        .xres           = 240,
 460        .yres           = 320,
 461        .left_margin    = 9,
 462        .right_margin   = 8,
 463        .upper_margin   = 5,
 464        .lower_margin   = 4,
 465        .crtc_ss        = 0x80150014,
 466        .crtc_ls        = 0xa0fb00f7,
 467        .crtc_gs        = 0xc0080007,
 468        .crtc_vpos_gs   = 0x00080007,
 469        .crtc_rev       = 0x0000000a,
 470        .crtc_dclk      = 0x81700030,
 471        .crtc_gclk      = 0x8015010f,
 472        .crtc_goe       = 0x00000000,
 473        .pll_freq       = 95,
 474        .pixclk_divider = 4,
 475        .pixclk_divider_rotated = 4,
 476        .pixclk_src     = CLK_SRC_PLL,
 477        .sysclk_divider = 0,
 478        .sysclk_src     = CLK_SRC_PLL,
 479},
 480};
 481
 482struct w100_mem_info w3220_mem_info = {
 483        .ext_cntl        = 0x09640011,
 484        .sdram_mode_reg  = 0x00600021,
 485        .ext_timing_cntl = 0x1a001545,  /* 0x15001545 */
 486        .io_cntl         = 0x7ddd7333,
 487        .size            = 0x1fffff,
 488};
 489
 490struct w100_bm_mem_info w3220_bm_mem_info = {
 491        .ext_mem_bw = 0x50413e01,
 492        .offset = 0,
 493        .ext_timing_ctl = 0x00043f7f,
 494        .ext_cntl = 0x00000010,
 495        .mode_reg = 0x00250000,
 496        .io_cntl = 0x0fff0000,
 497        .config = 0x08301480,
 498};
 499
 500static struct w100_gpio_regs w3220_gpio_info = {
 501        .init_data1 = 0xdfe00100,       /* GPIO_DATA */
 502        .gpio_dir1  = 0xffff0000,       /* GPIO_CNTL1 */
 503        .gpio_oe1   = 0x00000000,       /* GPIO_CNTL2 */
 504        .init_data2 = 0x00000000,       /* GPIO_DATA2 */
 505        .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
 506        .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
 507};
 508
 509static struct w100fb_mach_info w3220_info = {
 510        .tg        = &w3220_tg_info,
 511        .mem       = &w3220_mem_info,
 512        .bm_mem    = &w3220_bm_mem_info,
 513        .gpio      = &w3220_gpio_info,
 514        .regs      = &w3220_regs,
 515        .modelist  = w3220_modes,
 516        .num_modes = 2,
 517        .xtal_freq = 16000000,
 518};
 519
 520static struct resource w3220_resources[] = {
 521        [0] = DEFINE_RES_MEM(ATI_W3220_PHYS, SZ_16M),
 522};
 523
 524static struct platform_device w3220 = {
 525        .name   = "w100fb",
 526        .id     = -1,
 527        .dev    = {
 528                .platform_data = &w3220_info,
 529        },
 530        .num_resources = ARRAY_SIZE(w3220_resources),
 531        .resource      = w3220_resources,
 532};
 533
 534static void hx4700_lcd_set_power(struct plat_lcd_data *pd, unsigned int power)
 535{
 536        if (power)
 537                sony_lcd_init();
 538        else
 539                sony_lcd_off();
 540}
 541
 542static struct plat_lcd_data hx4700_lcd_data = {
 543        .set_power = hx4700_lcd_set_power,
 544};
 545
 546static struct platform_device hx4700_lcd = {
 547        .name = "platform-lcd",
 548        .id   = -1,
 549        .dev  = {
 550                .platform_data = &hx4700_lcd_data,
 551                .parent        = &w3220.dev,
 552        },
 553};
 554
 555/*
 556 * Backlight
 557 */
 558
 559static struct platform_pwm_backlight_data backlight_data = {
 560        .pwm_id         = -1,   /* Superseded by pwm_lookup */
 561        .max_brightness = 200,
 562        .dft_brightness = 100,
 563        .pwm_period_ns  = 30923,
 564        .enable_gpio    = -1,
 565};
 566
 567static struct platform_device backlight = {
 568        .name = "pwm-backlight",
 569        .id   = -1,
 570        .dev  = {
 571                .parent        = &pxa27x_device_pwm1.dev,
 572                .platform_data = &backlight_data,
 573        },
 574};
 575
 576static struct pwm_lookup hx4700_pwm_lookup[] = {
 577        PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL,
 578                   30923, PWM_POLARITY_NORMAL),
 579};
 580
 581/*
 582 * USB "Transceiver"
 583 */
 584
 585static struct gpio_vbus_mach_info gpio_vbus_info = {
 586        .gpio_pullup        = GPIO76_HX4700_USBC_PUEN,
 587        .gpio_vbus          = GPIOD14_nUSBC_DETECT,
 588        .gpio_vbus_inverted = 1,
 589};
 590
 591static struct platform_device gpio_vbus = {
 592        .name          = "gpio-vbus",
 593        .id            = -1,
 594        .dev = {
 595                .platform_data = &gpio_vbus_info,
 596        },
 597};
 598
 599/*
 600 * Touchscreen - TSC2046 connected to SSP2
 601 */
 602
 603static const struct ads7846_platform_data tsc2046_info = {
 604        .model            = 7846,
 605        .vref_delay_usecs = 100,
 606        .pressure_max     = 1024,
 607        .debounce_max     = 10,
 608        .debounce_tol     = 3,
 609        .debounce_rep     = 1,
 610        .gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
 611};
 612
 613static struct pxa2xx_spi_chip tsc2046_chip = {
 614        .tx_threshold = 1,
 615        .rx_threshold = 2,
 616        .timeout      = 64,
 617        .gpio_cs      = GPIO88_HX4700_TSC2046_CS,
 618};
 619
 620static struct spi_board_info tsc2046_board_info[] __initdata = {
 621        {
 622                .modalias        = "ads7846",
 623                .bus_num         = 2,
 624                .max_speed_hz    = 2600000, /* 100 kHz sample rate */
 625                .irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
 626                .platform_data   = &tsc2046_info,
 627                .controller_data = &tsc2046_chip,
 628        },
 629};
 630
 631static struct pxa2xx_spi_master pxa_ssp2_master_info = {
 632        .num_chipselect = 1,
 633        .clock_enable   = CKEN_SSP2,
 634        .enable_dma     = 1,
 635};
 636
 637/*
 638 * External power
 639 */
 640
 641static int power_supply_init(struct device *dev)
 642{
 643        return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
 644}
 645
 646static int hx4700_is_ac_online(void)
 647{
 648        return !gpio_get_value(GPIOD9_nAC_IN);
 649}
 650
 651static void power_supply_exit(struct device *dev)
 652{
 653        gpio_free(GPIOD9_nAC_IN);
 654}
 655
 656static char *hx4700_supplicants[] = {
 657        "ds2760-battery.0", "backup-battery"
 658};
 659
 660static struct pda_power_pdata power_supply_info = {
 661        .init            = power_supply_init,
 662        .is_ac_online    = hx4700_is_ac_online,
 663        .exit            = power_supply_exit,
 664        .supplied_to     = hx4700_supplicants,
 665        .num_supplicants = ARRAY_SIZE(hx4700_supplicants),
 666};
 667
 668static struct resource power_supply_resources[] = {
 669        [0] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN), 1, "ac",
 670                IORESOURCE_IRQ |
 671                IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
 672        [1] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT), 1, "usb",
 673                IORESOURCE_IRQ |
 674                IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
 675};
 676
 677static struct platform_device power_supply = {
 678        .name = "pda-power",
 679        .id   = -1,
 680        .dev  = {
 681                .platform_data = &power_supply_info,
 682        },
 683        .resource      = power_supply_resources,
 684        .num_resources = ARRAY_SIZE(power_supply_resources),
 685};
 686
 687/*
 688 * Battery charger
 689 */
 690
 691static struct regulator_consumer_supply bq24022_consumers[] = {
 692        REGULATOR_SUPPLY("vbus_draw", NULL),
 693        REGULATOR_SUPPLY("ac_draw", NULL),
 694};
 695
 696static struct regulator_init_data bq24022_init_data = {
 697        .constraints = {
 698                .max_uA         = 500000,
 699                .valid_ops_mask = REGULATOR_CHANGE_CURRENT|REGULATOR_CHANGE_STATUS,
 700        },
 701        .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
 702        .consumer_supplies      = bq24022_consumers,
 703};
 704
 705static struct gpio bq24022_gpios[] = {
 706        { GPIO96_HX4700_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
 707};
 708
 709static struct gpio_regulator_state bq24022_states[] = {
 710        { .value = 100000, .gpios = (0 << 0) },
 711        { .value = 500000, .gpios = (1 << 0) },
 712};
 713
 714static struct gpio_regulator_config bq24022_info = {
 715        .supply_name = "bq24022",
 716
 717        .enable_gpio = GPIO72_HX4700_BQ24022_nCHARGE_EN,
 718        .enable_high = 0,
 719        .enabled_at_boot = 0,
 720
 721        .gpios = bq24022_gpios,
 722        .nr_gpios = ARRAY_SIZE(bq24022_gpios),
 723
 724        .states = bq24022_states,
 725        .nr_states = ARRAY_SIZE(bq24022_states),
 726
 727        .type = REGULATOR_CURRENT,
 728        .init_data = &bq24022_init_data,
 729};
 730
 731static struct platform_device bq24022 = {
 732        .name = "gpio-regulator",
 733        .id   = -1,
 734        .dev  = {
 735                .platform_data = &bq24022_info,
 736        },
 737};
 738
 739/*
 740 * StrataFlash
 741 */
 742
 743static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
 744{
 745        gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
 746}
 747
 748static struct resource strataflash_resource[] = {
 749        [0] = DEFINE_RES_MEM(PXA_CS0_PHYS, SZ_64M),
 750        [1] = DEFINE_RES_MEM(PXA_CS0_PHYS + SZ_64M, SZ_64M),
 751};
 752
 753static struct physmap_flash_data strataflash_data = {
 754        .width = 4,
 755        .set_vpp = hx4700_set_vpp,
 756};
 757
 758static struct platform_device strataflash = {
 759        .name          = "physmap-flash",
 760        .id            = -1,
 761        .resource      = strataflash_resource,
 762        .num_resources = ARRAY_SIZE(strataflash_resource),
 763        .dev = {
 764                .platform_data = &strataflash_data,
 765        },
 766};
 767
 768/*
 769 * Maxim MAX1587A on PI2C
 770 */
 771
 772static struct regulator_consumer_supply max1587a_consumer =
 773        REGULATOR_SUPPLY("vcc_core", NULL);
 774
 775static struct regulator_init_data max1587a_v3_info = {
 776        .constraints = {
 777                .name = "vcc_core range",
 778                .min_uV =  900000,
 779                .max_uV = 1705000,
 780                .always_on = 1,
 781                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 782        },
 783        .num_consumer_supplies = 1,
 784        .consumer_supplies     = &max1587a_consumer,
 785};
 786
 787static struct max1586_subdev_data max1587a_subdev = {
 788        .name = "vcc_core",
 789        .id   = MAX1586_V3,
 790        .platform_data = &max1587a_v3_info,
 791};
 792
 793static struct max1586_platform_data max1587a_info = {
 794        .num_subdevs = 1,
 795        .subdevs     = &max1587a_subdev,
 796        .v3_gain     = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
 797};
 798
 799static struct i2c_board_info __initdata pi2c_board_info[] = {
 800        {
 801                I2C_BOARD_INFO("max1586", 0x14),
 802                .platform_data = &max1587a_info,
 803        },
 804};
 805
 806/*
 807 * Asahi Kasei AK4641 on I2C
 808 */
 809
 810static struct ak4641_platform_data ak4641_info = {
 811        .gpio_power = GPIO27_HX4700_CODEC_ON,
 812        .gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
 813};
 814
 815static struct i2c_board_info i2c_board_info[] __initdata = {
 816        {
 817                I2C_BOARD_INFO("ak4641", 0x12),
 818                .platform_data = &ak4641_info,
 819        },
 820};
 821
 822static struct platform_device audio = {
 823        .name   = "hx4700-audio",
 824        .id     = -1,
 825};
 826
 827
 828/*
 829 * Platform devices
 830 */
 831
 832static struct platform_device *devices[] __initdata = {
 833        &asic3,
 834        &gpio_keys,
 835        &navpoint,
 836        &backlight,
 837        &w3220,
 838        &hx4700_lcd,
 839        &egpio,
 840        &bq24022,
 841        &gpio_vbus,
 842        &power_supply,
 843        &strataflash,
 844        &audio,
 845};
 846
 847static struct gpio global_gpios[] = {
 848        { GPIO12_HX4700_ASIC3_IRQ, GPIOF_IN, "ASIC3_IRQ" },
 849        { GPIO13_HX4700_W3220_IRQ, GPIOF_IN, "W3220_IRQ" },
 850        { GPIO14_HX4700_nWLAN_IRQ, GPIOF_IN, "WLAN_IRQ" },
 851        { GPIO59_HX4700_LCD_PC1,          GPIOF_OUT_INIT_HIGH, "LCD_PC1" },
 852        { GPIO62_HX4700_LCD_nRESET,       GPIOF_OUT_INIT_HIGH, "LCD_RESET" },
 853        { GPIO70_HX4700_LCD_SLIN1,        GPIOF_OUT_INIT_HIGH, "LCD_SLIN1" },
 854        { GPIO84_HX4700_LCD_SQN,          GPIOF_OUT_INIT_HIGH, "LCD_SQN" },
 855        { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
 856        { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
 857        { GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
 858        { GPIO61_HX4700_W3220_nRESET,     GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
 859        { GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
 860        { GPIO81_HX4700_CPU_GP_nRESET,    GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
 861        { GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
 862        { GPIO116_HX4700_CPU_HW_nRESET,   GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
 863};
 864
 865static void __init hx4700_init(void)
 866{
 867        int ret;
 868
 869        PCFR = PCFR_GPR_EN | PCFR_OPDE;
 870
 871        pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
 872        gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
 873        ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
 874        if (ret)
 875                pr_err ("hx4700: Failed to request GPIOs.\n");
 876
 877        pxa_set_ffuart_info(NULL);
 878        pxa_set_btuart_info(NULL);
 879        pxa_set_stuart_info(NULL);
 880
 881        platform_add_devices(devices, ARRAY_SIZE(devices));
 882        pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
 883
 884        pxa_set_ficp_info(&ficp_info);
 885        pxa27x_set_i2c_power_info(NULL);
 886        pxa_set_i2c_info(NULL);
 887        i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
 888        i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
 889        pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 890        spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
 891
 892        gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
 893        mdelay(10);
 894        gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
 895        mdelay(10);
 896}
 897
 898MACHINE_START(H4700, "HP iPAQ HX4700")
 899        .atag_offset  = 0x100,
 900        .map_io       = pxa27x_map_io,
 901        .nr_irqs      = HX4700_NR_IRQS,
 902        .init_irq     = pxa27x_init_irq,
 903        .handle_irq     = pxa27x_handle_irq,
 904        .init_machine = hx4700_init,
 905        .init_time      = pxa_timer_init,
 906        .restart        = pxa_restart,
 907MACHINE_END
 908