arch/arm/mach-pxa/palmz72.c

   1 /*
   2  * Hardware definitions for Palm Zire72
   3  *
   4  * Authors:
   5  *      Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
   6  *      Sergey Lapin <slapin@ossfans.org>
   7  *      Alex Osborne <bobofdoom@gmail.com>
   8  *      Jan Herman <2hp@seznam.cz>
   9  *
  10  * Rewrite for mainline:
  11  *      Marek Vasut <marek.vasut@gmail.com>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  *
  17  * (find more info at www.hackndev.com)
  18  *
  19  */
  20
  21 #include <linux/platform_device.h>
  22 #include <linux/sysdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/irq.h>
  25 #include <linux/gpio_keys.h>
  26 #include <linux/input.h>
  27 #include <linux/pda_power.h>
  28 #include <linux/pwm_backlight.h>
  29 #include <linux/gpio.h>
  30 #include <linux/wm97xx_batt.h>
  31 #include <linux/power_supply.h>
  32 #include <linux/usb/gpio_vbus.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <mach/pxa27x.h>
  39 #include <mach/audio.h>
  40 #include <mach/palmz72.h>
  41 #include <mach/mmc.h>
  42 #include <mach/pxafb.h>
  43 #include <mach/irda.h>
  44 #include <mach/pxa27x_keypad.h>
  45 #include <mach/udc.h>
  46 #include <mach/palmasoc.h>
  47
  48 #include <mach/pm.h>
  49
  50 #include "generic.h"
  51 #include "devices.h"
  52
  53 /******************************************************************************
  54  * Pin configuration
  55  ******************************************************************************/
  56 static unsigned long palmz72_pin_config[] __initdata = {
  57         /* MMC */
  58         GPIO32_MMC_CLK,
  59         GPIO92_MMC_DAT_0,
  60         GPIO109_MMC_DAT_1,
  61         GPIO110_MMC_DAT_2,
  62         GPIO111_MMC_DAT_3,
  63         GPIO112_MMC_CMD,
  64         GPIO14_GPIO,    /* SD detect */
  65         GPIO115_GPIO,   /* SD RO */
  66         GPIO98_GPIO,    /* SD power */
  67
  68         /* AC97 */
  69         GPIO28_AC97_BITCLK,
  70         GPIO29_AC97_SDATA_IN_0,
  71         GPIO30_AC97_SDATA_OUT,
  72         GPIO31_AC97_SYNC,
  73         GPIO89_AC97_SYSCLK,
  74         GPIO113_AC97_nRESET,
  75
  76         /* IrDA */
  77         GPIO49_GPIO,    /* ir disable */
  78         GPIO46_FICP_RXD,
  79         GPIO47_FICP_TXD,
  80
  81         /* PWM */
  82         GPIO16_PWM0_OUT,
  83
  84         /* USB */
  85         GPIO15_GPIO,    /* usb detect */
  86         GPIO95_GPIO,    /* usb pullup */
  87
  88         /* Matrix keypad */
  89         GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
  90         GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
  91         GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
  92         GPIO97_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
  93         GPIO103_KP_MKOUT_0,
  94         GPIO104_KP_MKOUT_1,
  95         GPIO105_KP_MKOUT_2,
  96
  97         /* LCD */
  98         GPIO58_LCD_LDD_0,
  99         GPIO59_LCD_LDD_1,
 100         GPIO60_LCD_LDD_2,
 101         GPIO61_LCD_LDD_3,
 102         GPIO62_LCD_LDD_4,
 103         GPIO63_LCD_LDD_5,
 104         GPIO64_LCD_LDD_6,
 105         GPIO65_LCD_LDD_7,
 106         GPIO66_LCD_LDD_8,
 107         GPIO67_LCD_LDD_9,
 108         GPIO68_LCD_LDD_10,
 109         GPIO69_LCD_LDD_11,
 110         GPIO70_LCD_LDD_12,
 111         GPIO71_LCD_LDD_13,
 112         GPIO72_LCD_LDD_14,
 113         GPIO73_LCD_LDD_15,
 114         GPIO74_LCD_FCLK,
 115         GPIO75_LCD_LCLK,
 116         GPIO76_LCD_PCLK,
 117         GPIO77_LCD_BIAS,
 118         GPIO20_GPIO,    /* bl power */
 119         GPIO21_GPIO,    /* LCD border switch */
 120         GPIO22_GPIO,    /* LCD border color */
 121         GPIO96_GPIO,    /* lcd power */
 122
 123         /* Misc. */
 124         GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 125         GPIO88_GPIO,                            /* green led */
 126         GPIO27_GPIO,                            /* WM9712 IRQ */
 127 };
 128
 129 /******************************************************************************
 130  * SD/MMC card controller
 131  ******************************************************************************/
 132 static int palmz72_mci_init(struct device *dev,
 133                                 irq_handler_t palmz72_detect_int, void *data)
 134 {
 135         int err = 0;
 136
 137         /* Setup an interrupt for detecting card insert/remove events */
 138         err = gpio_request(GPIO_NR_PALMZ72_SD_DETECT_N, "SD IRQ");
 139         if (err)
 140                 goto err;
 141         err = gpio_direction_input(GPIO_NR_PALMZ72_SD_DETECT_N);
 142         if (err)
 143                 goto err2;
 144         err = request_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N),
 145                         palmz72_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 146                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 147                         "SD/MMC card detect", data);
 148         if (err) {
 149                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 150                                 __func__);
 151                 goto err2;
 152         }
 153
 154         /* SD_POWER is not actually power, but it is more like chip
 155          * select, i.e. it is inverted */
 156
 157         err = gpio_request(GPIO_NR_PALMZ72_SD_POWER_N, "SD_POWER");
 158         if (err)
 159                 goto err3;
 160         err = gpio_direction_output(GPIO_NR_PALMZ72_SD_POWER_N, 0);
 161         if (err)
 162                 goto err4;
 163         err = gpio_request(GPIO_NR_PALMZ72_SD_RO, "SD_RO");
 164         if (err)
 165                 goto err4;
 166         err = gpio_direction_input(GPIO_NR_PALMZ72_SD_RO);
 167         if (err)
 168                 goto err5;
 169
 170         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 171
 172         return 0;
 173
 174 err5:
 175         gpio_free(GPIO_NR_PALMZ72_SD_RO);
 176 err4:
 177         gpio_free(GPIO_NR_PALMZ72_SD_POWER_N);
 178 err3:
 179         free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data);
 180 err2:
 181         gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N);
 182 err:
 183         return err;
 184 }
 185
 186 static void palmz72_mci_exit(struct device *dev, void *data)
 187 {
 188         gpio_free(GPIO_NR_PALMZ72_SD_POWER_N);
 189         free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data);
 190         gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N);
 191         gpio_free(GPIO_NR_PALMZ72_SD_RO);
 192 }
 193
 194 static void palmz72_mci_power(struct device *dev, unsigned int vdd)
 195 {
 196         struct pxamci_platform_data *p_d = dev->platform_data;
 197         if (p_d->ocr_mask & (1 << vdd))
 198                 gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 0);
 199         else
 200                 gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 1);
 201 }
 202
 203 static int palmz72_mci_ro(struct device *dev)
 204 {
 205         return gpio_get_value(GPIO_NR_PALMZ72_SD_RO);
 206 }
 207
 208 static struct pxamci_platform_data palmz72_mci_platform_data = {
 209         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 210         .setpower       = palmz72_mci_power,
 211         .get_ro         = palmz72_mci_ro,
 212         .init           = palmz72_mci_init,
 213         .exit           = palmz72_mci_exit,
 214 };
 215
 216 /******************************************************************************
 217  * GPIO keyboard
 218  ******************************************************************************/
 219 static unsigned int palmz72_matrix_keys[] = {
 220         KEY(0, 0, KEY_POWER),
 221         KEY(0, 1, KEY_F1),
 222         KEY(0, 2, KEY_ENTER),
 223
 224         KEY(1, 0, KEY_F2),
 225         KEY(1, 1, KEY_F3),
 226         KEY(1, 2, KEY_F4),
 227
 228         KEY(2, 0, KEY_UP),
 229         KEY(2, 2, KEY_DOWN),
 230
 231         KEY(3, 0, KEY_RIGHT),
 232         KEY(3, 2, KEY_LEFT),
 233 };
 234
 235 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 236         .matrix_key_rows        = 4,
 237         .matrix_key_cols        = 3,
 238         .matrix_key_map         = palmz72_matrix_keys,
 239         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 240
 241         .debounce_interval      = 30,
 242 };
 243
 244 /******************************************************************************
 245  * Backlight
 246  ******************************************************************************/
 247 static int palmz72_backlight_init(struct device *dev)
 248 {
 249         int ret;
 250
 251         ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
 252         if (ret)
 253                 goto err;
 254         ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
 255         if (ret)
 256                 goto err2;
 257         ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
 258         if (ret)
 259                 goto err2;
 260         ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
 261         if (ret)
 262                 goto err3;
 263
 264         return 0;
 265 err3:
 266         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 267 err2:
 268         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 269 err:
 270         return ret;
 271 }
 272
 273 static int palmz72_backlight_notify(int brightness)
 274 {
 275         gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
 276         gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
 277         return brightness;
 278 }
 279
 280 static void palmz72_backlight_exit(struct device *dev)
 281 {
 282         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 283         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 284 }
 285
 286 static struct platform_pwm_backlight_data palmz72_backlight_data = {
 287         .pwm_id         = 0,
 288         .max_brightness = PALMZ72_MAX_INTENSITY,
 289         .dft_brightness = PALMZ72_MAX_INTENSITY,
 290         .pwm_period_ns  = PALMZ72_PERIOD_NS,
 291         .init           = palmz72_backlight_init,
 292         .notify         = palmz72_backlight_notify,
 293         .exit           = palmz72_backlight_exit,
 294 };
 295
 296 static struct platform_device palmz72_backlight = {
 297         .name   = "pwm-backlight",
 298         .dev    = {
 299                 .parent         = &pxa27x_device_pwm0.dev,
 300                 .platform_data  = &palmz72_backlight_data,
 301         },
 302 };
 303
 304 /******************************************************************************
 305  * IrDA
 306  ******************************************************************************/
 307 static int palmz72_irda_startup(struct device *dev)
 308 {
 309         int err;
 310         err = gpio_request(GPIO_NR_PALMZ72_IR_DISABLE, "IR DISABLE");
 311         if (err)
 312                 goto err;
 313         err = gpio_direction_output(GPIO_NR_PALMZ72_IR_DISABLE, 1);
 314         if (err)
 315                 gpio_free(GPIO_NR_PALMZ72_IR_DISABLE);
 316 err:
 317         return err;
 318 }
 319
 320 static void palmz72_irda_shutdown(struct device *dev)
 321 {
 322         gpio_free(GPIO_NR_PALMZ72_IR_DISABLE);
 323 }
 324
 325 static void palmz72_irda_transceiver_mode(struct device *dev, int mode)
 326 {
 327         gpio_set_value(GPIO_NR_PALMZ72_IR_DISABLE, mode & IR_OFF);
 328         pxa2xx_transceiver_mode(dev, mode);
 329 }
 330
 331 static struct pxaficp_platform_data palmz72_ficp_platform_data = {
 332         .startup                = palmz72_irda_startup,
 333         .shutdown               = palmz72_irda_shutdown,
 334         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 335         .transceiver_mode       = palmz72_irda_transceiver_mode,
 336 };
 337
 338 /******************************************************************************
 339  * LEDs
 340  ******************************************************************************/
 341 static struct gpio_led gpio_leds[] = {
 342         {
 343                 .name                   = "palmz72:green:led",
 344                 .default_trigger        = "none",
 345                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 346         },
 347 };
 348
 349 static struct gpio_led_platform_data gpio_led_info = {
 350         .leds           = gpio_leds,
 351         .num_leds       = ARRAY_SIZE(gpio_leds),
 352 };
 353
 354 static struct platform_device palmz72_leds = {
 355         .name   = "leds-gpio",
 356         .id     = -1,
 357         .dev    = {
 358                 .platform_data  = &gpio_led_info,
 359         }
 360 };
 361
 362 /******************************************************************************
 363  * UDC
 364  ******************************************************************************/
 365 static struct gpio_vbus_mach_info palmz72_udc_info = {
 366         .gpio_vbus              = GPIO_NR_PALMZ72_USB_DETECT_N,
 367         .gpio_pullup            = GPIO_NR_PALMZ72_USB_PULLUP,
 368 };
 369
 370 static struct platform_device palmz72_gpio_vbus = {
 371         .name   = "gpio-vbus",
 372         .id     = -1,
 373         .dev    = {
 374                 .platform_data  = &palmz72_udc_info,
 375         },
 376 };
 377
 378 /******************************************************************************
 379  * Power supply
 380  ******************************************************************************/
 381 static int power_supply_init(struct device *dev)
 382 {
 383         int ret;
 384
 385         ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
 386         if (ret)
 387                 goto err1;
 388         ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
 389         if (ret)
 390                 goto err2;
 391
 392         ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
 393         if (ret)
 394                 goto err2;
 395         ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
 396         if (ret)
 397                 goto err3;
 398
 399         return 0;
 400 err3:
 401         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 402 err2:
 403         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 404 err1:
 405         return ret;
 406 }
 407
 408 static int palmz72_is_ac_online(void)
 409 {
 410         return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
 411 }
 412
 413 static int palmz72_is_usb_online(void)
 414 {
 415         return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
 416 }
 417
 418 static void power_supply_exit(struct device *dev)
 419 {
 420         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 421         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 422 }
 423
 424 static char *palmz72_supplicants[] = {
 425         "main-battery",
 426 };
 427
 428 static struct pda_power_pdata power_supply_info = {
 429         .init            = power_supply_init,
 430         .is_ac_online    = palmz72_is_ac_online,
 431         .is_usb_online   = palmz72_is_usb_online,
 432         .exit            = power_supply_exit,
 433         .supplied_to     = palmz72_supplicants,
 434         .num_supplicants = ARRAY_SIZE(palmz72_supplicants),
 435 };
 436
 437 static struct platform_device power_supply = {
 438         .name = "pda-power",
 439         .id   = -1,
 440         .dev  = {
 441                 .platform_data = &power_supply_info,
 442         },
 443 };
 444
 445 /******************************************************************************
 446  * WM97xx battery
 447  ******************************************************************************/
 448 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 449         .batt_aux       = WM97XX_AUX_ID3,
 450         .temp_aux       = WM97XX_AUX_ID2,
 451         .charge_gpio    = -1,
 452         .max_voltage    = PALMZ72_BAT_MAX_VOLTAGE,
 453         .min_voltage    = PALMZ72_BAT_MIN_VOLTAGE,
 454         .batt_mult      = 1000,
 455         .batt_div       = 414,
 456         .temp_mult      = 1,
 457         .temp_div       = 1,
 458         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 459         .batt_name      = "main-batt",
 460 };
 461
 462 /******************************************************************************
 463  * aSoC audio
 464  ******************************************************************************/
 465 static struct platform_device palmz72_asoc = {
 466         .name = "palm27x-asoc",
 467         .id   = -1,
 468 };
 469
 470 /******************************************************************************
 471  * Framebuffer
 472  ******************************************************************************/
 473 static struct pxafb_mode_info palmz72_lcd_modes[] = {
 474 {
 475         .pixclock       = 115384,
 476         .xres           = 320,
 477         .yres           = 320,
 478         .bpp            = 16,
 479
 480         .left_margin    = 27,
 481         .right_margin   = 7,
 482         .upper_margin   = 7,
 483         .lower_margin   = 8,
 484
 485         .hsync_len      = 6,
 486         .vsync_len      = 1,
 487 },
 488 };
 489
 490 static struct pxafb_mach_info palmz72_lcd_screen = {
 491         .modes          = palmz72_lcd_modes,
 492         .num_modes      = ARRAY_SIZE(palmz72_lcd_modes),
 493         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 494 };
 495
 496 #ifdef CONFIG_PM
 497
 498 /* We have some black magic here
 499  * PalmOS ROM on recover expects special struct physical address
 500  * to be transferred via PSPR. Using this struct PalmOS restores
 501  * its state after sleep. As for Linux, we need to setup it the
 502  * same way. More than that, PalmOS ROM changes some values in memory.
 503  * For now only one location is found, which needs special treatment.
 504  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 505  * for reading backtraces for me :)
 506  */
 507
 508 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 509
 510 static struct palmz72_resume_info palmz72_resume_info = {
 511         .magic0 = 0xb4e6,
 512         .magic1 = 1,
 513
 514         /* reset state, MMU off etc */
 515         .arm_control = 0,
 516         .aux_control = 0,
 517         .ttb = 0,
 518         .domain_access = 0,
 519         .process_id = 0,
 520 };
 521
 522 static unsigned long store_ptr;
 523
 524 /* sys_device for Palm Zire 72 PM */
 525
 526 static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
 527 {
 528         /* setup the resume_info struct for the original bootloader */
 529         palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
 530
 531         /* Storing memory touched by ROM */
 532         store_ptr = *PALMZ72_SAVE_DWORD;
 533
 534         /* Setting PSPR to a proper value */
 535         PSPR = virt_to_phys(&palmz72_resume_info);
 536
 537         return 0;
 538 }
 539
 540 static int palmz72_pm_resume(struct sys_device *dev)
 541 {
 542         *PALMZ72_SAVE_DWORD = store_ptr;
 543         return 0;
 544 }
 545
 546 static struct sysdev_class palmz72_pm_sysclass = {
 547         .name = "palmz72_pm",
 548         .suspend = palmz72_pm_suspend,
 549         .resume = palmz72_pm_resume,
 550 };
 551
 552 static struct sys_device palmz72_pm_device = {
 553         .cls = &palmz72_pm_sysclass,
 554 };
 555
 556 static int __init palmz72_pm_init(void)
 557 {
 558         int ret = -ENODEV;
 559         if (machine_is_palmz72()) {
 560                 ret = sysdev_class_register(&palmz72_pm_sysclass);
 561                 if (ret == 0)
 562                         ret = sysdev_register(&palmz72_pm_device);
 563         }
 564         return ret;
 565 }
 566
 567 device_initcall(palmz72_pm_init);
 568 #endif
 569
 570 /******************************************************************************
 571  * Machine init
 572  ******************************************************************************/
 573 static struct platform_device *devices[] __initdata = {
 574         &palmz72_backlight,
 575         &palmz72_leds,
 576         &palmz72_asoc,
 577         &power_supply,
 578         &palmz72_gpio_vbus,
 579 };
 580
 581 /* setup udc GPIOs initial state */
 582 static void __init palmz72_udc_init(void)
 583 {
 584         if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
 585                 gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
 586                 gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
 587         }
 588 }
 589
 590 static void __init palmz72_init(void)
 591 {
 592         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 593
 594         set_pxa_fb_info(&palmz72_lcd_screen);
 595         pxa_set_mci_info(&palmz72_mci_platform_data);
 596         palmz72_udc_init();
 597         pxa_set_ac97_info(NULL);
 598         pxa_set_ficp_info(&palmz72_ficp_platform_data);
 599         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 600         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 601
 602         platform_add_devices(devices, ARRAY_SIZE(devices));
 603 }
 604
 605 MACHINE_START(PALMZ72, "Palm Zire72")
 606         .phys_io        = 0x40000000,
 607         .io_pg_offst    = io_p2v(0x40000000),
 608         .boot_params    = 0xa0000100,
 609         .map_io         = pxa_map_io,
 610         .init_irq       = pxa27x_init_irq,
 611         .timer          = &pxa_timer,
 612         .init_machine   = palmz72_init
 613 MACHINE_END