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