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.h>
  38 #include <linux/mtd/physmap.h>
  39
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <mach/mfp-pxa27x.h>
  43 #include <mach/pxa27x_keypad.h>
  44 #include <mach/pxafb.h>
  45 #include <mach/pxa2xx-regs.h>
  46 #include <mach/mmc.h>
  47 #include <mach/udc.h>
  48 #include <mach/pxa27x-udc.h>
  49
  50 #include <mach/mioa701.h>
  51
  52 #include "generic.h"
  53 #include "devices.h"
  54
  55 static unsigned long mioa701_pin_config[] = {
  56         /* Mio global */
  57         MIO_CFG_OUT(GPIO9_CHARGE_nEN, AF0, DRIVE_LOW),
  58         MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
  59         MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
  60         MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
  61
  62         /* Backlight PWM 0 */
  63         GPIO16_PWM0_OUT,
  64
  65         /* MMC */
  66         GPIO32_MMC_CLK,
  67         GPIO92_MMC_DAT_0,
  68         GPIO109_MMC_DAT_1,
  69         GPIO110_MMC_DAT_2,
  70         GPIO111_MMC_DAT_3,
  71         GPIO112_MMC_CMD,
  72         MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
  73         MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
  74         MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
  75
  76         /* USB */
  77         MIO_CFG_IN(GPIO13_USB_DETECT, AF0),
  78         MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
  79
  80         /* LCD */
  81         GPIO58_LCD_LDD_0,
  82         GPIO59_LCD_LDD_1,
  83         GPIO60_LCD_LDD_2,
  84         GPIO61_LCD_LDD_3,
  85         GPIO62_LCD_LDD_4,
  86         GPIO63_LCD_LDD_5,
  87         GPIO64_LCD_LDD_6,
  88         GPIO65_LCD_LDD_7,
  89         GPIO66_LCD_LDD_8,
  90         GPIO67_LCD_LDD_9,
  91         GPIO68_LCD_LDD_10,
  92         GPIO69_LCD_LDD_11,
  93         GPIO70_LCD_LDD_12,
  94         GPIO71_LCD_LDD_13,
  95         GPIO72_LCD_LDD_14,
  96         GPIO73_LCD_LDD_15,
  97         GPIO74_LCD_FCLK,
  98         GPIO75_LCD_LCLK,
  99         GPIO76_LCD_PCLK,
 100
 101         /* Bluetooth */
 102         GPIO44_BTUART_CTS,
 103         GPIO42_BTUART_RXD,
 104         GPIO45_BTUART_RTS,
 105         GPIO43_BTUART_TXD,
 106         MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
 107
 108         /* GPS */
 109         MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
 110         MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
 111         MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
 112         MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
 113         MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
 114         GPIO46_STUART_RXD,
 115         GPIO47_STUART_TXD,
 116
 117         /* GSM */
 118         MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
 119         MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
 120         MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
 121         MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
 122         MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
 123         MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
 124         GPIO34_FFUART_RXD,
 125         GPIO35_FFUART_CTS,
 126         GPIO36_FFUART_DCD,
 127         GPIO37_FFUART_DSR,
 128         GPIO39_FFUART_TXD,
 129         GPIO40_FFUART_DTR,
 130         GPIO41_FFUART_RTS,
 131
 132         /* Sound */
 133         GPIO89_AC97_SYSCLK,
 134         MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
 135
 136         /* Leds */
 137         MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
 138         MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
 139         MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
 140         MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
 141         MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
 142
 143         /* Keyboard */
 144         MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
 145         MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
 146         MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
 147         GPIO100_KP_MKIN_0,
 148         GPIO101_KP_MKIN_1,
 149         GPIO102_KP_MKIN_2,
 150         GPIO103_KP_MKOUT_0,
 151         GPIO104_KP_MKOUT_1,
 152         GPIO105_KP_MKOUT_2,
 153
 154         /* Unknown */
 155         MFP_CFG_IN(GPIO14, AF0),
 156         MFP_CFG_IN(GPIO20, AF0),
 157         MFP_CFG_IN(GPIO21, AF0),
 158         MFP_CFG_IN(GPIO33, AF0),
 159         MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
 160         MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
 161         MFP_CFG_OUT(GPIO77, AF0, DRIVE_HIGH),
 162         MFP_CFG_IN(GPIO80, AF0),
 163         MFP_CFG_OUT(GPIO86, AF0, DRIVE_HIGH),
 164         MFP_CFG_IN(GPIO96, AF0),
 165         MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
 166 };
 167
 168 #define MIO_GPIO_IN(num, _desc) \
 169         { .gpio = (num), .dir = 0, .desc = (_desc) }
 170 #define MIO_GPIO_OUT(num, _init, _desc) \
 171         { .gpio = (num), .dir = 1, .init = (_init), .desc = (_desc) }
 172 struct gpio_ress {
 173         unsigned gpio : 8;
 174         unsigned dir : 1;
 175         unsigned init : 1;
 176         char *desc;
 177 };
 178
 179 static int mio_gpio_request(struct gpio_ress *gpios, int size)
 180 {
 181         int i, rc = 0;
 182         int gpio;
 183         int dir;
 184
 185         for (i = 0; (!rc) && (i < size); i++) {
 186                 gpio = gpios[i].gpio;
 187                 dir = gpios[i].dir;
 188                 rc = gpio_request(gpio, gpios[i].desc);
 189                 if (rc) {
 190                         printk(KERN_ERR "Error requesting GPIO %d(%s) : %d\n",
 191                                gpio, gpios[i].desc, rc);
 192                         continue;
 193                 }
 194                 if (dir)
 195                         gpio_direction_output(gpio, gpios[i].init);
 196                 else
 197                         gpio_direction_input(gpio);
 198         }
 199         while ((rc) && (--i >= 0))
 200                 gpio_free(gpios[i].gpio);
 201         return rc;
 202 }
 203
 204 static void mio_gpio_free(struct gpio_ress *gpios, int size)
 205 {
 206         int i;
 207
 208         for (i = 0; i < size; i++)
 209                 gpio_free(gpios[i].gpio);
 210 }
 211
 212 /* LCD Screen and Backlight */
 213 static struct platform_pwm_backlight_data mioa701_backlight_data = {
 214         .pwm_id         = 0,
 215         .max_brightness = 100,
 216         .dft_brightness = 50,
 217         .pwm_period_ns  = 4000 * 1024,  /* Fl = 250kHz */
 218 };
 219
 220 /*
 221  * LTM0305A776C LCD panel timings
 222  *
 223  * see:
 224  *  - the LTM0305A776C datasheet,
 225  *  - and the PXA27x Programmers' manual
 226  */
 227 static struct pxafb_mode_info mioa701_ltm0305a776c = {
 228         .pixclock               = 220000,       /* CLK=4.545 MHz */
 229         .xres                   = 240,
 230         .yres                   = 320,
 231         .bpp                    = 16,
 232         .hsync_len              = 4,
 233         .vsync_len              = 2,
 234         .left_margin            = 6,
 235         .right_margin           = 4,
 236         .upper_margin           = 5,
 237         .lower_margin           = 3,
 238 };
 239
 240 static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
 241 {
 242         gpio_set_value(GPIO87_LCD_POWER, on);
 243 }
 244
 245 static struct pxafb_mach_info mioa701_pxafb_info = {
 246         .modes                  = &mioa701_ltm0305a776c,
 247         .num_modes              = 1,
 248         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 249         .pxafb_lcd_power        = mioa701_lcd_power,
 250 };
 251
 252 /*
 253  * Keyboard configuration
 254  */
 255 static unsigned int mioa701_matrix_keys[] = {
 256         KEY(0, 0, KEY_UP),
 257         KEY(0, 1, KEY_RIGHT),
 258         KEY(0, 2, KEY_MEDIA),
 259         KEY(1, 0, KEY_DOWN),
 260         KEY(1, 1, KEY_ENTER),
 261         KEY(1, 2, KEY_CONNECT), /* GPS key */
 262         KEY(2, 0, KEY_LEFT),
 263         KEY(2, 1, KEY_PHONE),   /* Phone Green key */
 264         KEY(2, 2, KEY_CAMERA)   /* Camera key */
 265 };
 266 static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
 267         .matrix_key_rows = 3,
 268         .matrix_key_cols = 3,
 269         .matrix_key_map = mioa701_matrix_keys,
 270         .matrix_key_map_size = ARRAY_SIZE(mioa701_matrix_keys),
 271 };
 272
 273 /*
 274  * GPIO Key Configuration
 275  */
 276 #define MIO_KEY(key, _gpio, _desc, _wakeup) \
 277         { .code = (key), .gpio = (_gpio), .active_low = 0, \
 278         .desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
 279 static struct gpio_keys_button mioa701_button_table[] = {
 280         MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
 281         MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
 282         MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
 283         MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
 284 };
 285
 286 static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
 287         .buttons  = mioa701_button_table,
 288         .nbuttons = ARRAY_SIZE(mioa701_button_table),
 289 };
 290
 291 /*
 292  * Leds and vibrator
 293  */
 294 #define ONE_LED(_gpio, _name) \
 295 { .gpio = (_gpio), .name = (_name), .active_low = true }
 296 static struct gpio_led gpio_leds[] = {
 297         ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
 298         ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
 299         ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
 300         ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
 301         ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
 302 };
 303
 304 static struct gpio_led_platform_data gpio_led_info = {
 305         .leds = gpio_leds,
 306         .num_leds = ARRAY_SIZE(gpio_leds),
 307 };
 308
 309 /*
 310  * GSM Sagem XS200 chip
 311  *
 312  * GSM handling was purged from kernel. For history, this is the way to go :
 313  *   - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
 314  *            GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
 315  *   - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
 316  *             GPIO24_GSM_MOD_RESET_CMD = 0
 317  *   - turn on  : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
 318  *                GPIO88_GSM_nMOD_ON_CMD = 1
 319  *   - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
 320  *                GPIO90_GSM_nMOD_OFF_CMD = 1
 321  */
 322 static int is_gsm_on(void)
 323 {
 324         int is_on;
 325
 326         is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
 327         return is_on;
 328 }
 329
 330 irqreturn_t gsm_on_irq(int irq, void *p)
 331 {
 332         printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
 333                is_gsm_on() ? "on" : "off");
 334         return IRQ_HANDLED;
 335 }
 336
 337 struct gpio_ress gsm_gpios[] = {
 338         MIO_GPIO_IN(GPIO25_GSM_MOD_ON_STATE, "GSM state"),
 339         MIO_GPIO_IN(GPIO113_GSM_EVENT, "GSM event"),
 340 };
 341
 342 static int __init gsm_init(void)
 343 {
 344         int rc;
 345
 346         rc = mio_gpio_request(ARRAY_AND_SIZE(gsm_gpios));
 347         if (rc)
 348                 goto err_gpio;
 349         rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
 350                          IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 351                          "GSM XS200 Power Irq", NULL);
 352         if (rc)
 353                 goto err_irq;
 354
 355         gpio_set_wake(GPIO113_GSM_EVENT, 1);
 356         return 0;
 357
 358 err_irq:
 359         printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
 360         mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
 361 err_gpio:
 362         printk(KERN_ERR "Mioa701: gsm not available\n");
 363         return rc;
 364 }
 365
 366 static void gsm_exit(void)
 367 {
 368         free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
 369         mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
 370 }
 371
 372 /*
 373  * Bluetooth BRF6150 chip
 374  *
 375  * BT handling was purged from kernel. For history, this is the way to go :
 376  * - turn on  : GPIO83_BT_ON = 1
 377  * - turn off : GPIO83_BT_ON = 0
 378  */
 379
 380 /*
 381  * GPS Sirf Star III chip
 382  *
 383  * GPS handling was purged from kernel. For history, this is the way to go :
 384  * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 385  *          GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
 386  * - turn on  : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
 387  * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 388  */
 389
 390 /*
 391  * USB UDC
 392  */
 393 static void udc_power_command(int cmd)
 394 {
 395         switch (cmd) {
 396         case PXA2XX_UDC_CMD_DISCONNECT:
 397                 gpio_set_value(GPIO22_USB_ENABLE, 0);
 398                 break;
 399         case PXA2XX_UDC_CMD_CONNECT:
 400                 gpio_set_value(GPIO22_USB_ENABLE, 1);
 401                 break;
 402         default:
 403                 printk(KERN_INFO "udc_control: unknown command (0x%x)!\n", cmd);
 404                 break;
 405         }
 406 }
 407
 408 static int is_usb_connected(void)
 409 {
 410         return !!gpio_get_value(GPIO13_USB_DETECT);
 411 }
 412
 413 static struct pxa2xx_udc_mach_info mioa701_udc_info = {
 414         .udc_is_connected = is_usb_connected,
 415         .udc_command      = udc_power_command,
 416 };
 417
 418 struct gpio_ress udc_gpios[] = {
 419         MIO_GPIO_OUT(GPIO22_USB_ENABLE, 0, "USB Vbus enable")
 420 };
 421
 422 static int __init udc_init(void)
 423 {
 424         pxa_set_udc_info(&mioa701_udc_info);
 425         return mio_gpio_request(ARRAY_AND_SIZE(udc_gpios));
 426 }
 427
 428 static void udc_exit(void)
 429 {
 430         mio_gpio_free(ARRAY_AND_SIZE(udc_gpios));
 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 void mioa701_set_charge(int flags)
 663 {
 664         gpio_set_value(GPIO9_CHARGE_nEN, !flags);
 665 }
 666
 667 static struct pda_power_pdata power_pdata = {
 668         .is_ac_online   = is_usb_connected,
 669         .set_charge = mioa701_set_charge,
 670         .supplied_to = supplicants,
 671         .num_supplicants = ARRAY_SIZE(supplicants),
 672 };
 673
 674 static struct resource power_resources[] = {
 675         [0] = {
 676                 .name   = "ac",
 677                 .start  = gpio_to_irq(GPIO13_USB_DETECT),
 678                 .end    = gpio_to_irq(GPIO13_USB_DETECT),
 679                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 680                 IORESOURCE_IRQ_LOWEDGE,
 681         },
 682 };
 683
 684 static struct platform_device power_dev = {
 685         .name           = "pda-power",
 686         .id             = -1,
 687         .resource       = power_resources,
 688         .num_resources  = ARRAY_SIZE(power_resources),
 689         .dev = {
 690                 .platform_data  = &power_pdata,
 691         },
 692 };
 693
 694 #if defined(CONFIG_PDA_POWER) && defined(CONFIG_TOUCHSCREEN_WM97XX)
 695 static struct wm97xx *battery_wm;
 696
 697 static enum power_supply_property battery_props[] = {
 698         POWER_SUPPLY_PROP_STATUS,
 699         POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
 700         POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
 701         POWER_SUPPLY_PROP_VOLTAGE_NOW,
 702         POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,   /* Necessary for apm */
 703 };
 704
 705 static int get_battery_voltage(void)
 706 {
 707         int adc = -1;
 708
 709         if (battery_wm)
 710                 adc = wm97xx_read_aux_adc(battery_wm, WM97XX_AUX_ID1);
 711         return adc;
 712 }
 713
 714 static int get_battery_status(struct power_supply *b)
 715 {
 716         int status;
 717
 718         if (is_usb_connected())
 719                 status = POWER_SUPPLY_STATUS_CHARGING;
 720         else
 721                 status = POWER_SUPPLY_STATUS_DISCHARGING;
 722
 723         return status;
 724 }
 725
 726 static int get_property(struct power_supply *b,
 727                         enum power_supply_property psp,
 728                         union power_supply_propval *val)
 729 {
 730         int rc = 0;
 731
 732         switch (psp) {
 733         case POWER_SUPPLY_PROP_STATUS:
 734                 val->intval = get_battery_status(b);
 735                 break;
 736         case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
 737                 val->intval = 0xfd0;
 738                 break;
 739         case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
 740                 val->intval = 0xc00;
 741                 break;
 742         case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 743                 val->intval = get_battery_voltage();
 744                 break;
 745         case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
 746                 val->intval = 100;
 747                 break;
 748         default:
 749                 val->intval = -1;
 750                 rc = -1;
 751         }
 752
 753         return rc;
 754 };
 755
 756 static struct power_supply battery_ps = {
 757         .name = "mioa701_battery",
 758         .type = POWER_SUPPLY_TYPE_BATTERY,
 759         .get_property = get_property,
 760         .properties = battery_props,
 761         .num_properties = ARRAY_SIZE(battery_props),
 762 };
 763
 764 static int battery_probe(struct platform_device *pdev)
 765 {
 766         struct wm97xx *wm = platform_get_drvdata(pdev);
 767         int rc;
 768
 769         battery_wm = wm;
 770
 771         rc = power_supply_register(NULL, &battery_ps);
 772         if (rc)
 773                 dev_err(&pdev->dev,
 774                 "Could not register mioa701 battery -> %d\n", rc);
 775         return rc;
 776 }
 777
 778 static int battery_remove(struct platform_device *pdev)
 779 {
 780         battery_wm = NULL;
 781         return 0;
 782 }
 783
 784 static struct platform_driver mioa701_battery_driver = {
 785         .driver = {
 786                 .name = "wm97xx-battery",
 787         },
 788         .probe = battery_probe,
 789         .remove = battery_remove
 790 };
 791
 792 static int __init mioa701_battery_init(void)
 793 {
 794         int rc;
 795
 796         rc = platform_driver_register(&mioa701_battery_driver);
 797         if (rc)
 798                 printk(KERN_ERR "Could not register mioa701 battery driver\n");
 799         return rc;
 800 }
 801
 802 #else
 803 static int __init mioa701_battery_init(void)
 804 {
 805         return 0;
 806 }
 807 #endif
 808
 809 /*
 810  * Mio global
 811  */
 812
 813 /* Devices */
 814 #define MIO_PARENT_DEV(var, strname, tparent, pdata)    \
 815 static struct platform_device var = {                   \
 816         .name           = strname,                      \
 817         .id             = -1,                           \
 818         .dev            = {                             \
 819                 .platform_data = pdata,                 \
 820                 .parent = tparent,                      \
 821         },                                              \
 822 };
 823 #define MIO_SIMPLE_DEV(var, strname, pdata)     \
 824         MIO_PARENT_DEV(var, strname, NULL, pdata)
 825
 826 MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys",      &mioa701_gpio_keys_data)
 827 MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight",  &pxa27x_device_pwm0.dev,
 828                 &mioa701_backlight_data);
 829 MIO_SIMPLE_DEV(mioa701_led,       "leds-gpio",      &gpio_led_info)
 830 MIO_SIMPLE_DEV(pxa2xx_pcm,        "pxa2xx-pcm",     NULL)
 831 MIO_SIMPLE_DEV(pxa2xx_ac97,       "pxa2xx-ac97",    NULL)
 832 MIO_PARENT_DEV(mio_wm9713_codec,  "wm9713-codec",   &pxa2xx_ac97.dev, NULL)
 833 MIO_SIMPLE_DEV(mioa701_sound,     "mioa701-wm9713", NULL)
 834 MIO_SIMPLE_DEV(mioa701_board,     "mioa701-board",  NULL)
 835
 836 static struct platform_device *devices[] __initdata = {
 837         &mioa701_gpio_keys,
 838         &mioa701_backlight,
 839         &mioa701_led,
 840         &pxa2xx_pcm,
 841         &pxa2xx_ac97,
 842         &mio_wm9713_codec,
 843         &mioa701_sound,
 844         &power_dev,
 845         &strataflash,
 846         &mioa701_board
 847 };
 848
 849 static void mioa701_machine_exit(void);
 850
 851 static void mioa701_poweroff(void)
 852 {
 853         mioa701_machine_exit();
 854         gpio_set_value(GPIO18_POWEROFF, 1);
 855 }
 856
 857 static void mioa701_restart(char c)
 858 {
 859         mioa701_machine_exit();
 860         arm_machine_restart(c);
 861 }
 862
 863 struct gpio_ress global_gpios[] = {
 864         MIO_GPIO_OUT(GPIO9_CHARGE_nEN, 1, "Charger enable"),
 865         MIO_GPIO_OUT(GPIO18_POWEROFF, 0, "Power Off"),
 866         MIO_GPIO_OUT(GPIO87_LCD_POWER, 0, "LCD Power")
 867 };
 868
 869 static void __init mioa701_machine_init(void)
 870 {
 871         PSLR  = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
 872         PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
 873         RTTR = 32768 - 1; /* Reset crazy WinCE value */
 874         UP2OCR = UP2OCR_HXOE;
 875
 876         pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
 877         mio_gpio_request(ARRAY_AND_SIZE(global_gpios));
 878         bootstrap_init();
 879         set_pxa_fb_info(&mioa701_pxafb_info);
 880         pxa_set_mci_info(&mioa701_mci_info);
 881         pxa_set_keypad_info(&mioa701_keypad_info);
 882         udc_init();
 883         pm_power_off = mioa701_poweroff;
 884         arm_pm_restart = mioa701_restart;
 885         platform_add_devices(devices, ARRAY_SIZE(devices));
 886         gsm_init();
 887         mioa701_battery_init();
 888 }
 889
 890 static void mioa701_machine_exit(void)
 891 {
 892         udc_exit();
 893         bootstrap_exit();
 894         gsm_exit();
 895 }
 896
 897 MACHINE_START(MIOA701, "MIO A701")
 898         .phys_io        = 0x40000000,
 899         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 900         .boot_params    = 0xa0000100,
 901         .map_io         = &pxa_map_io,
 902         .init_irq       = &pxa27x_init_irq,
 903         .init_machine   = mioa701_machine_init,
 904         .timer          = &pxa_timer,
 905 MACHINE_END