arch/arm/mach-pxa/mioa701.c

   1 /*
   2  * Handles the Mitac Mio A701 Board
   3  *
   4  * Copyright (C) 2008 Robert Jarzmik
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/sysdev.h>
  26 #include <linux/input.h>
  27 #include <linux/delay.h>
  28 #include <linux/gpio_keys.h>
  29 #include <linux/pwm_backlight.h>
  30 #include <linux/rtc.h>
  31 #include <linux/leds.h>
  32 #include <linux/gpio.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/irq.h>
  35 #include <linux/pda_power.h>
  36 #include <linux/power_supply.h>
  37 #include <linux/wm97xx_batt.h>
  38 #include <linux/mtd/physmap.h>
  39 #include <linux/usb/gpio_vbus.h>
  40
  41 #include <asm/mach-types.h>
  42 #include <asm/mach/arch.h>
  43
  44 #include <mach/pxa27x.h>
  45 #include <mach/regs-rtc.h>
  46 #include <mach/pxa27x_keypad.h>
  47 #include <mach/pxafb.h>
  48 #include <mach/mmc.h>
  49 #include <mach/udc.h>
  50 #include <mach/pxa27x-udc.h>
  51 #include <mach/i2c.h>
  52 #include <mach/camera.h>
  53 #include <mach/audio.h>
  54 #include <media/soc_camera.h>
  55
  56 #include <mach/mioa701.h>
  57
  58 #include "generic.h"
  59 #include "devices.h"
  60
  61 static unsigned long mioa701_pin_config[] = {
  62         /* Mio global */
  63         MIO_CFG_OUT(GPIO9_CHARGE_EN, AF0, DRIVE_LOW),
  64         MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
  65         MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
  66         MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
  67         MIO_CFG_IN(GPIO80_MAYBE_CHARGE_VDROP, AF0),
  68
  69         /* Backlight PWM 0 */
  70         GPIO16_PWM0_OUT,
  71
  72         /* MMC */
  73         GPIO32_MMC_CLK,
  74         GPIO92_MMC_DAT_0,
  75         GPIO109_MMC_DAT_1,
  76         GPIO110_MMC_DAT_2,
  77         GPIO111_MMC_DAT_3,
  78         GPIO112_MMC_CMD,
  79         MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
  80         MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
  81         MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
  82
  83         /* USB */
  84         MIO_CFG_IN(GPIO13_nUSB_DETECT, AF0),
  85         MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
  86
  87         /* LCD */
  88         GPIO58_LCD_LDD_0,
  89         GPIO59_LCD_LDD_1,
  90         GPIO60_LCD_LDD_2,
  91         GPIO61_LCD_LDD_3,
  92         GPIO62_LCD_LDD_4,
  93         GPIO63_LCD_LDD_5,
  94         GPIO64_LCD_LDD_6,
  95         GPIO65_LCD_LDD_7,
  96         GPIO66_LCD_LDD_8,
  97         GPIO67_LCD_LDD_9,
  98         GPIO68_LCD_LDD_10,
  99         GPIO69_LCD_LDD_11,
 100         GPIO70_LCD_LDD_12,
 101         GPIO71_LCD_LDD_13,
 102         GPIO72_LCD_LDD_14,
 103         GPIO73_LCD_LDD_15,
 104         GPIO74_LCD_FCLK,
 105         GPIO75_LCD_LCLK,
 106         GPIO76_LCD_PCLK,
 107
 108         /* QCI */
 109         GPIO12_CIF_DD_7,
 110         GPIO17_CIF_DD_6,
 111         GPIO50_CIF_DD_3,
 112         GPIO51_CIF_DD_2,
 113         GPIO52_CIF_DD_4,
 114         GPIO53_CIF_MCLK,
 115         GPIO54_CIF_PCLK,
 116         GPIO55_CIF_DD_1,
 117         GPIO81_CIF_DD_0,
 118         GPIO82_CIF_DD_5,
 119         GPIO84_CIF_FV,
 120         GPIO85_CIF_LV,
 121
 122         /* Bluetooth */
 123         MIO_CFG_IN(GPIO14_BT_nACTIVITY, AF0),
 124         GPIO44_BTUART_CTS,
 125         GPIO42_BTUART_RXD,
 126         GPIO45_BTUART_RTS,
 127         GPIO43_BTUART_TXD,
 128         MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
 129         MIO_CFG_OUT(GPIO77_BT_UNKNOWN1, AF0, DRIVE_HIGH),
 130         MIO_CFG_OUT(GPIO86_BT_MAYBE_nRESET, AF0, DRIVE_HIGH),
 131
 132         /* GPS */
 133         MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
 134         MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
 135         MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
 136         MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
 137         MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
 138         GPIO46_STUART_RXD,
 139         GPIO47_STUART_TXD,
 140
 141         /* GSM */
 142         MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
 143         MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
 144         MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
 145         MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
 146         MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
 147         MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
 148         GPIO34_FFUART_RXD,
 149         GPIO35_FFUART_CTS,
 150         GPIO36_FFUART_DCD,
 151         GPIO37_FFUART_DSR,
 152         GPIO39_FFUART_TXD,
 153         GPIO40_FFUART_DTR,
 154         GPIO41_FFUART_RTS,
 155
 156         /* Sound */
 157         GPIO89_AC97_SYSCLK,
 158         MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
 159
 160         /* Leds */
 161         MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
 162         MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
 163         MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
 164         MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
 165         MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
 166
 167         /* Keyboard */
 168         MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
 169         MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
 170         MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
 171         GPIO100_KP_MKIN_0,
 172         GPIO101_KP_MKIN_1,
 173         GPIO102_KP_MKIN_2,
 174         GPIO103_KP_MKOUT_0,
 175         GPIO104_KP_MKOUT_1,
 176         GPIO105_KP_MKOUT_2,
 177
 178         /* I2C */
 179         GPIO117_I2C_SCL,
 180         GPIO118_I2C_SDA,
 181
 182         /* Unknown */
 183         MFP_CFG_IN(GPIO20, AF0),
 184         MFP_CFG_IN(GPIO21, AF0),
 185         MFP_CFG_IN(GPIO33, AF0),
 186         MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
 187         MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
 188         MFP_CFG_IN(GPIO96, AF0),
 189         MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
 190 };
 191
 192 #define MIO_GPIO_IN(num, _desc) \
 193         { .gpio = (num), .dir = 0, .desc = (_desc) }
 194 #define MIO_GPIO_OUT(num, _init, _desc) \
 195         { .gpio = (num), .dir = 1, .init = (_init), .desc = (_desc) }
 196 struct gpio_ress {
 197         unsigned gpio : 8;
 198         unsigned dir : 1;
 199         unsigned init : 1;
 200         char *desc;
 201 };
 202
 203 static int mio_gpio_request(struct gpio_ress *gpios, int size)
 204 {
 205         int i, rc = 0;
 206         int gpio;
 207         int dir;
 208
 209         for (i = 0; (!rc) && (i < size); i++) {
 210                 gpio = gpios[i].gpio;
 211                 dir = gpios[i].dir;
 212                 rc = gpio_request(gpio, gpios[i].desc);
 213                 if (rc) {
 214                         printk(KERN_ERR "Error requesting GPIO %d(%s) : %d\n",
 215                                gpio, gpios[i].desc, rc);
 216                         continue;
 217                 }
 218                 if (dir)
 219                         gpio_direction_output(gpio, gpios[i].init);
 220                 else
 221                         gpio_direction_input(gpio);
 222         }
 223         while ((rc) && (--i >= 0))
 224                 gpio_free(gpios[i].gpio);
 225         return rc;
 226 }
 227
 228 static void mio_gpio_free(struct gpio_ress *gpios, int size)
 229 {
 230         int i;
 231
 232         for (i = 0; i < size; i++)
 233                 gpio_free(gpios[i].gpio);
 234 }
 235
 236 /* LCD Screen and Backlight */
 237 static struct platform_pwm_backlight_data mioa701_backlight_data = {
 238         .pwm_id         = 0,
 239         .max_brightness = 100,
 240         .dft_brightness = 50,
 241         .pwm_period_ns  = 4000 * 1024,  /* Fl = 250kHz */
 242 };
 243
 244 /*
 245  * LTM0305A776C LCD panel timings
 246  *
 247  * see:
 248  *  - the LTM0305A776C datasheet,
 249  *  - and the PXA27x Programmers' manual
 250  */
 251 static struct pxafb_mode_info mioa701_ltm0305a776c = {
 252         .pixclock               = 220000,       /* CLK=4.545 MHz */
 253         .xres                   = 240,
 254         .yres                   = 320,
 255         .bpp                    = 16,
 256         .hsync_len              = 4,
 257         .vsync_len              = 2,
 258         .left_margin            = 6,
 259         .right_margin           = 4,
 260         .upper_margin           = 5,
 261         .lower_margin           = 3,
 262 };
 263
 264 static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
 265 {
 266         gpio_set_value(GPIO87_LCD_POWER, on);
 267 }
 268
 269 static struct pxafb_mach_info mioa701_pxafb_info = {
 270         .modes                  = &mioa701_ltm0305a776c,
 271         .num_modes              = 1,
 272         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 273         .pxafb_lcd_power        = mioa701_lcd_power,
 274 };
 275
 276 /*
 277  * Keyboard configuration
 278  */
 279 static unsigned int mioa701_matrix_keys[] = {
 280         KEY(0, 0, KEY_UP),
 281         KEY(0, 1, KEY_RIGHT),
 282         KEY(0, 2, KEY_MEDIA),
 283         KEY(1, 0, KEY_DOWN),
 284         KEY(1, 1, KEY_ENTER),
 285         KEY(1, 2, KEY_CONNECT), /* GPS key */
 286         KEY(2, 0, KEY_LEFT),
 287         KEY(2, 1, KEY_PHONE),   /* Phone Green key */
 288         KEY(2, 2, KEY_CAMERA)   /* Camera key */
 289 };
 290 static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
 291         .matrix_key_rows = 3,
 292         .matrix_key_cols = 3,
 293         .matrix_key_map = mioa701_matrix_keys,
 294         .matrix_key_map_size = ARRAY_SIZE(mioa701_matrix_keys),
 295 };
 296
 297 /*
 298  * GPIO Key Configuration
 299  */
 300 #define MIO_KEY(key, _gpio, _desc, _wakeup) \
 301         { .code = (key), .gpio = (_gpio), .active_low = 0, \
 302         .desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
 303 static struct gpio_keys_button mioa701_button_table[] = {
 304         MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
 305         MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
 306         MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
 307         MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
 308 };
 309
 310 static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
 311         .buttons  = mioa701_button_table,
 312         .nbuttons = ARRAY_SIZE(mioa701_button_table),
 313 };
 314
 315 /*
 316  * Leds and vibrator
 317  */
 318 #define ONE_LED(_gpio, _name) \
 319 { .gpio = (_gpio), .name = (_name), .active_low = true }
 320 static struct gpio_led gpio_leds[] = {
 321         ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
 322         ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
 323         ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
 324         ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
 325         ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
 326 };
 327
 328 static struct gpio_led_platform_data gpio_led_info = {
 329         .leds = gpio_leds,
 330         .num_leds = ARRAY_SIZE(gpio_leds),
 331 };
 332
 333 /*
 334  * GSM Sagem XS200 chip
 335  *
 336  * GSM handling was purged from kernel. For history, this is the way to go :
 337  *   - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
 338  *            GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
 339  *   - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
 340  *             GPIO24_GSM_MOD_RESET_CMD = 0
 341  *   - turn on  : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
 342  *                GPIO88_GSM_nMOD_ON_CMD = 1
 343  *   - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
 344  *                GPIO90_GSM_nMOD_OFF_CMD = 1
 345  */
 346 static int is_gsm_on(void)
 347 {
 348         int is_on;
 349
 350         is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
 351         return is_on;
 352 }
 353
 354 irqreturn_t gsm_on_irq(int irq, void *p)
 355 {
 356         printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
 357                is_gsm_on() ? "on" : "off");
 358         return IRQ_HANDLED;
 359 }
 360
 361 struct gpio_ress gsm_gpios[] = {
 362         MIO_GPIO_IN(GPIO25_GSM_MOD_ON_STATE, "GSM state"),
 363         MIO_GPIO_IN(GPIO113_GSM_EVENT, "GSM event"),
 364 };
 365
 366 static int __init gsm_init(void)
 367 {
 368         int rc;
 369
 370         rc = mio_gpio_request(ARRAY_AND_SIZE(gsm_gpios));
 371         if (rc)
 372                 goto err_gpio;
 373         rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
 374                          IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 375                          "GSM XS200 Power Irq", NULL);
 376         if (rc)
 377                 goto err_irq;
 378
 379         gpio_set_wake(GPIO113_GSM_EVENT, 1);
 380         return 0;
 381
 382 err_irq:
 383         printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
 384         mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
 385 err_gpio:
 386         printk(KERN_ERR "Mioa701: gsm not available\n");
 387         return rc;
 388 }
 389
 390 static void gsm_exit(void)
 391 {
 392         free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
 393         mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
 394 }
 395
 396 /*
 397  * Bluetooth BRF6150 chip
 398  *
 399  * BT handling was purged from kernel. For history, this is the way to go :
 400  * - turn on  : GPIO83_BT_ON = 1
 401  * - turn off : GPIO83_BT_ON = 0
 402  */
 403
 404 /*
 405  * GPS Sirf Star III chip
 406  *
 407  * GPS handling was purged from kernel. For history, this is the way to go :
 408  * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 409  *          GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
 410  * - turn on  : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
 411  * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 412  */
 413
 414 /*
 415  * USB UDC
 416  */
 417 static int is_usb_connected(void)
 418 {
 419         return !gpio_get_value(GPIO13_nUSB_DETECT);
 420 }
 421
 422 static struct pxa2xx_udc_mach_info mioa701_udc_info = {
 423         .udc_is_connected = is_usb_connected,
 424         .gpio_pullup      = GPIO22_USB_ENABLE,
 425 };
 426
 427 struct gpio_vbus_mach_info gpio_vbus_data = {
 428         .gpio_vbus = GPIO13_nUSB_DETECT,
 429         .gpio_vbus_inverted = 1,
 430         .gpio_pullup = -1,
 431 };
 432
 433 /*
 434  * SDIO/MMC Card controller
 435  */
 436 static void mci_setpower(struct device *dev, unsigned int vdd)
 437 {
 438         struct pxamci_platform_data *p_d = dev->platform_data;
 439
 440         if ((1 << vdd) & p_d->ocr_mask)
 441                 gpio_set_value(GPIO91_SDIO_EN, 1);      /* enable SDIO power */
 442         else
 443                 gpio_set_value(GPIO91_SDIO_EN, 0);      /* disable SDIO power */
 444 }
 445
 446 static int mci_get_ro(struct device *dev)
 447 {
 448         return gpio_get_value(GPIO78_SDIO_RO);
 449 }
 450
 451 struct gpio_ress mci_gpios[] = {
 452         MIO_GPIO_IN(GPIO78_SDIO_RO,     "SDIO readonly detect"),
 453         MIO_GPIO_IN(GPIO15_SDIO_INSERT, "SDIO insertion detect"),
 454         MIO_GPIO_OUT(GPIO91_SDIO_EN, 0, "SDIO power enable")
 455 };
 456
 457 static void mci_exit(struct device *dev, void *data)
 458 {
 459         mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
 460         free_irq(gpio_to_irq(GPIO15_SDIO_INSERT), data);
 461 }
 462
 463 static struct pxamci_platform_data mioa701_mci_info;
 464
 465 /**
 466  * The card detect interrupt isn't debounced so we delay it by 250ms
 467  * to give the card a chance to fully insert/eject.
 468  */
 469 static int mci_init(struct device *dev, irq_handler_t detect_int, void *data)
 470 {
 471         int rc;
 472         int irq = gpio_to_irq(GPIO15_SDIO_INSERT);
 473
 474         rc = mio_gpio_request(ARRAY_AND_SIZE(mci_gpios));
 475         if (rc)
 476                 goto err_gpio;
 477         /* enable RE/FE interrupt on card insertion and removal */
 478         rc = request_irq(irq, detect_int,
 479                          IRQF_DISABLED | IRQF_TRIGGER_RISING |
 480                          IRQF_TRIGGER_FALLING,
 481                          "MMC card detect", data);
 482         if (rc)
 483                 goto err_irq;
 484
 485         mioa701_mci_info.detect_delay = msecs_to_jiffies(250);
 486         return 0;
 487
 488 err_irq:
 489         dev_err(dev, "mioa701_mci_init: MMC/SD:"
 490                 " can't request MMC card detect IRQ\n");
 491         mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
 492 err_gpio:
 493         return rc;
 494 }
 495
 496 static struct pxamci_platform_data mioa701_mci_info = {
 497         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
 498         .init     = mci_init,
 499         .get_ro   = mci_get_ro,
 500         .setpower = mci_setpower,
 501         .exit     = mci_exit,
 502 };
 503
 504 /* FlashRAM */
 505 static struct resource strataflash_resource = {
 506         .start = PXA_CS0_PHYS,
 507         .end   = PXA_CS0_PHYS + SZ_64M - 1,
 508         .flags = IORESOURCE_MEM,
 509 };
 510
 511 static struct physmap_flash_data strataflash_data = {
 512         .width = 2,
 513         /* .set_vpp = mioa701_set_vpp, */
 514 };
 515
 516 static struct platform_device strataflash = {
 517         .name          = "physmap-flash",
 518         .id            = -1,
 519         .resource      = &strataflash_resource,
 520         .num_resources = 1,
 521         .dev = {
 522                 .platform_data = &strataflash_data,
 523         },
 524 };
 525
 526 /*
 527  * Suspend/Resume bootstrap management
 528  *
 529  * MIO A701 reboot sequence is highly ROM dependant. From the one dissassembled,
 530  * this sequence is as follows :
 531  *   - disables interrupts
 532  *   - initialize SDRAM (self refresh RAM into active RAM)
 533  *   - initialize GPIOs (depends on value at 0xa020b020)
 534  *   - initialize coprossessors
 535  *   - if edge detect on PWR_SCL(GPIO3), then proceed to cold start
 536  *   - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start
 537  *   - else do a resume, ie. jump to addr 0xa0100000
 538  */
 539 #define RESUME_ENABLE_ADDR      0xa020b000
 540 #define RESUME_ENABLE_VAL       0x0f0f0f0f
 541 #define RESUME_BT_ADDR          0xa020b020
 542 #define RESUME_UNKNOWN_ADDR     0xa020b024
 543 #define RESUME_VECTOR_ADDR      0xa0100000
 544 #define BOOTSTRAP_WORDS         mioa701_bootstrap_lg/4
 545
 546 static u32 *save_buffer;
 547
 548 static void install_bootstrap(void)
 549 {
 550         int i;
 551         u32 *rom_bootstrap  = phys_to_virt(RESUME_VECTOR_ADDR);
 552         u32 *src = &mioa701_bootstrap;
 553
 554         for (i = 0; i < BOOTSTRAP_WORDS; i++)
 555                 rom_bootstrap[i] = src[i];
 556 }
 557
 558
 559 static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state)
 560 {
 561         int i = 0, is_bt_on;
 562         u32 *mem_resume_vector  = phys_to_virt(RESUME_VECTOR_ADDR);
 563         u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
 564         u32 *mem_resume_bt      = phys_to_virt(RESUME_BT_ADDR);
 565         u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR);
 566
 567         /* Devices prepare suspend */
 568         is_bt_on = !!gpio_get_value(GPIO83_BT_ON);
 569         pxa2xx_mfp_set_lpm(GPIO83_BT_ON,
 570                            is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW);
 571
 572         for (i = 0; i < BOOTSTRAP_WORDS; i++)
 573                 save_buffer[i] = mem_resume_vector[i];
 574         save_buffer[i++] = *mem_resume_enabler;
 575         save_buffer[i++] = *mem_resume_bt;
 576         save_buffer[i++] = *mem_resume_unknown;
 577
 578         *mem_resume_enabler = RESUME_ENABLE_VAL;
 579         *mem_resume_bt      = is_bt_on;
 580
 581         install_bootstrap();
 582         return 0;
 583 }
 584
 585 static int mioa701_sys_resume(struct sys_device *sysdev)
 586 {
 587         int i = 0;
 588         u32 *mem_resume_vector  = phys_to_virt(RESUME_VECTOR_ADDR);
 589         u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
 590         u32 *mem_resume_bt      = phys_to_virt(RESUME_BT_ADDR);
 591         u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR);
 592
 593         for (i = 0; i < BOOTSTRAP_WORDS; i++)
 594                 mem_resume_vector[i] = save_buffer[i];
 595         *mem_resume_enabler = save_buffer[i++];
 596         *mem_resume_bt      = save_buffer[i++];
 597         *mem_resume_unknown = save_buffer[i++];
 598
 599         return 0;
 600 }
 601
 602 static struct sysdev_class mioa701_sysclass = {
 603         .name = "mioa701",
 604 };
 605
 606 static struct sys_device sysdev_bootstrap = {
 607         .cls            = &mioa701_sysclass,
 608 };
 609
 610 static struct sysdev_driver driver_bootstrap = {
 611         .suspend        = &mioa701_sys_suspend,
 612         .resume         = &mioa701_sys_resume,
 613 };
 614
 615 static int __init bootstrap_init(void)
 616 {
 617         int rc;
 618         int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3);
 619
 620         rc = sysdev_class_register(&mioa701_sysclass);
 621         if (rc) {
 622                 printk(KERN_ERR "Failed registering mioa701 sys class\n");
 623                 return -ENODEV;
 624         }
 625         rc = sysdev_register(&sysdev_bootstrap);
 626         if (rc) {
 627                 printk(KERN_ERR "Failed registering mioa701 sys device\n");
 628                 return -ENODEV;
 629         }
 630         rc = sysdev_driver_register(&mioa701_sysclass, &driver_bootstrap);
 631         if (rc) {
 632                 printk(KERN_ERR "Failed registering PMU sys driver\n");
 633                 return -ENODEV;
 634         }
 635
 636         save_buffer = kmalloc(save_size, GFP_KERNEL);
 637         if (!save_buffer)
 638                 return -ENOMEM;
 639         printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n",
 640                save_size);
 641         return 0;
 642 }
 643
 644 static void bootstrap_exit(void)
 645 {
 646         kfree(save_buffer);
 647         sysdev_driver_unregister(&mioa701_sysclass, &driver_bootstrap);
 648         sysdev_unregister(&sysdev_bootstrap);
 649         sysdev_class_unregister(&mioa701_sysclass);
 650
 651         printk(KERN_CRIT "Unregistering mioa701 suspend will hang next"
 652                "resume !!!\n");
 653 }
 654
 655 /*
 656  * Power Supply
 657  */
 658 static char *supplicants[] = {
 659         "mioa701_battery"
 660 };
 661
 662 static int is_ac_connected(void)
 663 {
 664         return gpio_get_value(GPIO96_AC_DETECT);
 665 }
 666
 667 static void mioa701_set_charge(int flags)
 668 {
 669         gpio_set_value(GPIO9_CHARGE_EN, (flags == PDA_POWER_CHARGE_USB));
 670 }
 671
 672 static struct pda_power_pdata power_pdata = {
 673         .is_ac_online   = is_ac_connected,
 674         .is_usb_online  = is_usb_connected,
 675         .set_charge = mioa701_set_charge,
 676         .supplied_to = supplicants,
 677         .num_supplicants = ARRAY_SIZE(supplicants),
 678 };
 679
 680 static struct resource power_resources[] = {
 681         [0] = {
 682                 .name   = "ac",
 683                 .start  = gpio_to_irq(GPIO96_AC_DETECT),
 684                 .end    = gpio_to_irq(GPIO96_AC_DETECT),
 685                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 686                 IORESOURCE_IRQ_LOWEDGE,
 687         },
 688         [1] = {
 689                 .name   = "usb",
 690                 .start  = gpio_to_irq(GPIO13_nUSB_DETECT),
 691                 .end    = gpio_to_irq(GPIO13_nUSB_DETECT),
 692                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 693                 IORESOURCE_IRQ_LOWEDGE,
 694         },
 695 };
 696
 697 static struct platform_device power_dev = {
 698         .name           = "pda-power",
 699         .id             = -1,
 700         .resource       = power_resources,
 701         .num_resources  = ARRAY_SIZE(power_resources),
 702         .dev = {
 703                 .platform_data  = &power_pdata,
 704         },
 705 };
 706
 707 static struct wm97xx_batt_info mioa701_battery_data = {
 708         .batt_aux       = WM97XX_AUX_ID1,
 709         .temp_aux       = -1,
 710         .charge_gpio    = -1,
 711         .min_voltage    = 0xc00,
 712         .max_voltage    = 0xfc0,
 713         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LION,
 714         .batt_div       = 1,
 715         .batt_mult      = 1,
 716         .batt_name      = "mioa701_battery",
 717 };
 718
 719 /*
 720  * Camera interface
 721  */
 722 struct pxacamera_platform_data mioa701_pxacamera_platform_data = {
 723         .flags  = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
 724                 PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
 725         .mclk_10khz = 5000,
 726 };
 727
 728 static struct soc_camera_link iclink = {
 729         .bus_id = 0, /* Must match id in pxa27x_device_camera in device.c */
 730 };
 731
 732 /* Board I2C devices. */
 733 static struct i2c_board_info __initdata mioa701_i2c_devices[] = {
 734         {
 735                 /* Must initialize before the camera(s) */
 736                 I2C_BOARD_INFO("mt9m111", 0x5d),
 737                 .platform_data = &iclink,
 738         },
 739 };
 740
 741 struct i2c_pxa_platform_data i2c_pdata = {
 742         .fast_mode = 1,
 743 };
 744
 745 static pxa2xx_audio_ops_t mioa701_ac97_info = {
 746         .reset_gpio = 95,
 747 };
 748
 749 /*
 750  * Mio global
 751  */
 752
 753 /* Devices */
 754 #define MIO_PARENT_DEV(var, strname, tparent, pdata)    \
 755 static struct platform_device var = {                   \
 756         .name           = strname,                      \
 757         .id             = -1,                           \
 758         .dev            = {                             \
 759                 .platform_data = pdata,                 \
 760                 .parent = tparent,                      \
 761         },                                              \
 762 };
 763 #define MIO_SIMPLE_DEV(var, strname, pdata)     \
 764         MIO_PARENT_DEV(var, strname, NULL, pdata)
 765
 766 MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys",      &mioa701_gpio_keys_data)
 767 MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight",  &pxa27x_device_pwm0.dev,
 768                 &mioa701_backlight_data);
 769 MIO_SIMPLE_DEV(mioa701_led,       "leds-gpio",      &gpio_led_info)
 770 MIO_SIMPLE_DEV(pxa2xx_pcm,        "pxa2xx-pcm",     NULL)
 771 MIO_SIMPLE_DEV(mioa701_sound,     "mioa701-wm9713", NULL)
 772 MIO_SIMPLE_DEV(mioa701_board,     "mioa701-board",  NULL)
 773 MIO_SIMPLE_DEV(gpio_vbus,         "gpio-vbus",      &gpio_vbus_data);
 774
 775 static struct platform_device *devices[] __initdata = {
 776         &mioa701_gpio_keys,
 777         &mioa701_backlight,
 778         &mioa701_led,
 779         &pxa2xx_pcm,
 780         &mioa701_sound,
 781         &power_dev,
 782         &strataflash,
 783         &gpio_vbus,
 784         &mioa701_board,
 785 };
 786
 787 static void mioa701_machine_exit(void);
 788
 789 static void mioa701_poweroff(void)
 790 {
 791         mioa701_machine_exit();
 792         arm_machine_restart('s', NULL);
 793 }
 794
 795 static void mioa701_restart(char c, const char *cmd)
 796 {
 797         mioa701_machine_exit();
 798         arm_machine_restart('s', cmd);
 799 }
 800
 801 struct gpio_ress global_gpios[] = {
 802         MIO_GPIO_OUT(GPIO9_CHARGE_EN, 1, "Charger enable"),
 803         MIO_GPIO_OUT(GPIO18_POWEROFF, 0, "Power Off"),
 804         MIO_GPIO_OUT(GPIO87_LCD_POWER, 0, "LCD Power")
 805 };
 806
 807 static void __init mioa701_machine_init(void)
 808 {
 809         PSLR  = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
 810         PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
 811         RTTR = 32768 - 1; /* Reset crazy WinCE value */
 812         UP2OCR = UP2OCR_HXOE;
 813
 814         pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
 815         mio_gpio_request(ARRAY_AND_SIZE(global_gpios));
 816         bootstrap_init();
 817         set_pxa_fb_info(&mioa701_pxafb_info);
 818         pxa_set_mci_info(&mioa701_mci_info);
 819         pxa_set_keypad_info(&mioa701_keypad_info);
 820         wm97xx_bat_set_pdata(&mioa701_battery_data);
 821         pxa_set_udc_info(&mioa701_udc_info);
 822         pxa_set_ac97_info(&mioa701_ac97_info);
 823         pm_power_off = mioa701_poweroff;
 824         arm_pm_restart = mioa701_restart;
 825         platform_add_devices(devices, ARRAY_SIZE(devices));
 826         gsm_init();
 827
 828         pxa_set_i2c_info(&i2c_pdata);
 829         pxa_set_camera_info(&mioa701_pxacamera_platform_data);
 830         i2c_register_board_info(0, ARRAY_AND_SIZE(mioa701_i2c_devices));
 831 }
 832
 833 static void mioa701_machine_exit(void)
 834 {
 835         bootstrap_exit();
 836         gsm_exit();
 837 }
 838
 839 MACHINE_START(MIOA701, "MIO A701")
 840         .phys_io        = 0x40000000,
 841         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 842         .boot_params    = 0xa0000100,
 843         .map_io         = &pxa_map_io,
 844         .init_irq       = &pxa27x_init_irq,
 845         .init_machine   = mioa701_machine_init,
 846         .timer          = &pxa_timer,
 847 MACHINE_END