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 /* SD_POWER is not actually power, but it is more like chip
 133  * select, i.e. it is inverted */
 134 static struct pxamci_platform_data palmz72_mci_platform_data = {
 135         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 136         .gpio_card_detect       = GPIO_NR_PALMZ72_SD_DETECT_N,
 137         .gpio_card_ro           = GPIO_NR_PALMZ72_SD_RO,
 138         .gpio_power             = GPIO_NR_PALMZ72_SD_POWER_N,
 139         .gpio_power_invert      = 1,
 140 };
 141
 142 /******************************************************************************
 143  * GPIO keyboard
 144  ******************************************************************************/
 145 static unsigned int palmz72_matrix_keys[] = {
 146         KEY(0, 0, KEY_POWER),
 147         KEY(0, 1, KEY_F1),
 148         KEY(0, 2, KEY_ENTER),
 149
 150         KEY(1, 0, KEY_F2),
 151         KEY(1, 1, KEY_F3),
 152         KEY(1, 2, KEY_F4),
 153
 154         KEY(2, 0, KEY_UP),
 155         KEY(2, 2, KEY_DOWN),
 156
 157         KEY(3, 0, KEY_RIGHT),
 158         KEY(3, 2, KEY_LEFT),
 159 };
 160
 161 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 162         .matrix_key_rows        = 4,
 163         .matrix_key_cols        = 3,
 164         .matrix_key_map         = palmz72_matrix_keys,
 165         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 166
 167         .debounce_interval      = 30,
 168 };
 169
 170 /******************************************************************************
 171  * Backlight
 172  ******************************************************************************/
 173 static int palmz72_backlight_init(struct device *dev)
 174 {
 175         int ret;
 176
 177         ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
 178         if (ret)
 179                 goto err;
 180         ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
 181         if (ret)
 182                 goto err2;
 183         ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
 184         if (ret)
 185                 goto err2;
 186         ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
 187         if (ret)
 188                 goto err3;
 189
 190         return 0;
 191 err3:
 192         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 193 err2:
 194         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 195 err:
 196         return ret;
 197 }
 198
 199 static int palmz72_backlight_notify(int brightness)
 200 {
 201         gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
 202         gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
 203         return brightness;
 204 }
 205
 206 static void palmz72_backlight_exit(struct device *dev)
 207 {
 208         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 209         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 210 }
 211
 212 static struct platform_pwm_backlight_data palmz72_backlight_data = {
 213         .pwm_id         = 0,
 214         .max_brightness = PALMZ72_MAX_INTENSITY,
 215         .dft_brightness = PALMZ72_MAX_INTENSITY,
 216         .pwm_period_ns  = PALMZ72_PERIOD_NS,
 217         .init           = palmz72_backlight_init,
 218         .notify         = palmz72_backlight_notify,
 219         .exit           = palmz72_backlight_exit,
 220 };
 221
 222 static struct platform_device palmz72_backlight = {
 223         .name   = "pwm-backlight",
 224         .dev    = {
 225                 .parent         = &pxa27x_device_pwm0.dev,
 226                 .platform_data  = &palmz72_backlight_data,
 227         },
 228 };
 229
 230 /******************************************************************************
 231  * IrDA
 232  ******************************************************************************/
 233 static struct pxaficp_platform_data palmz72_ficp_platform_data = {
 234         .gpio_pwdown            = GPIO_NR_PALMZ72_IR_DISABLE,
 235         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 236 };
 237
 238 /******************************************************************************
 239  * LEDs
 240  ******************************************************************************/
 241 static struct gpio_led gpio_leds[] = {
 242         {
 243                 .name                   = "palmz72:green:led",
 244                 .default_trigger        = "none",
 245                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 246         },
 247 };
 248
 249 static struct gpio_led_platform_data gpio_led_info = {
 250         .leds           = gpio_leds,
 251         .num_leds       = ARRAY_SIZE(gpio_leds),
 252 };
 253
 254 static struct platform_device palmz72_leds = {
 255         .name   = "leds-gpio",
 256         .id     = -1,
 257         .dev    = {
 258                 .platform_data  = &gpio_led_info,
 259         }
 260 };
 261
 262 /******************************************************************************
 263  * UDC
 264  ******************************************************************************/
 265 static struct gpio_vbus_mach_info palmz72_udc_info = {
 266         .gpio_vbus              = GPIO_NR_PALMZ72_USB_DETECT_N,
 267         .gpio_pullup            = GPIO_NR_PALMZ72_USB_PULLUP,
 268 };
 269
 270 static struct platform_device palmz72_gpio_vbus = {
 271         .name   = "gpio-vbus",
 272         .id     = -1,
 273         .dev    = {
 274                 .platform_data  = &palmz72_udc_info,
 275         },
 276 };
 277
 278 /******************************************************************************
 279  * Power supply
 280  ******************************************************************************/
 281 static int power_supply_init(struct device *dev)
 282 {
 283         int ret;
 284
 285         ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
 286         if (ret)
 287                 goto err1;
 288         ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
 289         if (ret)
 290                 goto err2;
 291
 292         ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
 293         if (ret)
 294                 goto err2;
 295         ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
 296         if (ret)
 297                 goto err3;
 298
 299         return 0;
 300 err3:
 301         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 302 err2:
 303         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 304 err1:
 305         return ret;
 306 }
 307
 308 static int palmz72_is_ac_online(void)
 309 {
 310         return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
 311 }
 312
 313 static int palmz72_is_usb_online(void)
 314 {
 315         return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
 316 }
 317
 318 static void power_supply_exit(struct device *dev)
 319 {
 320         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 321         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 322 }
 323
 324 static char *palmz72_supplicants[] = {
 325         "main-battery",
 326 };
 327
 328 static struct pda_power_pdata power_supply_info = {
 329         .init            = power_supply_init,
 330         .is_ac_online    = palmz72_is_ac_online,
 331         .is_usb_online   = palmz72_is_usb_online,
 332         .exit            = power_supply_exit,
 333         .supplied_to     = palmz72_supplicants,
 334         .num_supplicants = ARRAY_SIZE(palmz72_supplicants),
 335 };
 336
 337 static struct platform_device power_supply = {
 338         .name = "pda-power",
 339         .id   = -1,
 340         .dev  = {
 341                 .platform_data = &power_supply_info,
 342         },
 343 };
 344
 345 /******************************************************************************
 346  * WM97xx battery
 347  ******************************************************************************/
 348 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 349         .batt_aux       = WM97XX_AUX_ID3,
 350         .temp_aux       = WM97XX_AUX_ID2,
 351         .charge_gpio    = -1,
 352         .max_voltage    = PALMZ72_BAT_MAX_VOLTAGE,
 353         .min_voltage    = PALMZ72_BAT_MIN_VOLTAGE,
 354         .batt_mult      = 1000,
 355         .batt_div       = 414,
 356         .temp_mult      = 1,
 357         .temp_div       = 1,
 358         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 359         .batt_name      = "main-batt",
 360 };
 361
 362 /******************************************************************************
 363  * aSoC audio
 364  ******************************************************************************/
 365 static struct platform_device palmz72_asoc = {
 366         .name = "palm27x-asoc",
 367         .id   = -1,
 368 };
 369
 370 /******************************************************************************
 371  * Framebuffer
 372  ******************************************************************************/
 373 static struct pxafb_mode_info palmz72_lcd_modes[] = {
 374 {
 375         .pixclock       = 115384,
 376         .xres           = 320,
 377         .yres           = 320,
 378         .bpp            = 16,
 379
 380         .left_margin    = 27,
 381         .right_margin   = 7,
 382         .upper_margin   = 7,
 383         .lower_margin   = 8,
 384
 385         .hsync_len      = 6,
 386         .vsync_len      = 1,
 387 },
 388 };
 389
 390 static struct pxafb_mach_info palmz72_lcd_screen = {
 391         .modes          = palmz72_lcd_modes,
 392         .num_modes      = ARRAY_SIZE(palmz72_lcd_modes),
 393         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 394 };
 395
 396 #ifdef CONFIG_PM
 397
 398 /* We have some black magic here
 399  * PalmOS ROM on recover expects special struct physical address
 400  * to be transferred via PSPR. Using this struct PalmOS restores
 401  * its state after sleep. As for Linux, we need to setup it the
 402  * same way. More than that, PalmOS ROM changes some values in memory.
 403  * For now only one location is found, which needs special treatment.
 404  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 405  * for reading backtraces for me :)
 406  */
 407
 408 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 409
 410 static struct palmz72_resume_info palmz72_resume_info = {
 411         .magic0 = 0xb4e6,
 412         .magic1 = 1,
 413
 414         /* reset state, MMU off etc */
 415         .arm_control = 0,
 416         .aux_control = 0,
 417         .ttb = 0,
 418         .domain_access = 0,
 419         .process_id = 0,
 420 };
 421
 422 static unsigned long store_ptr;
 423
 424 /* sys_device for Palm Zire 72 PM */
 425
 426 static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
 427 {
 428         /* setup the resume_info struct for the original bootloader */
 429         palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
 430
 431         /* Storing memory touched by ROM */
 432         store_ptr = *PALMZ72_SAVE_DWORD;
 433
 434         /* Setting PSPR to a proper value */
 435         PSPR = virt_to_phys(&palmz72_resume_info);
 436
 437         return 0;
 438 }
 439
 440 static int palmz72_pm_resume(struct sys_device *dev)
 441 {
 442         *PALMZ72_SAVE_DWORD = store_ptr;
 443         return 0;
 444 }
 445
 446 static struct sysdev_class palmz72_pm_sysclass = {
 447         .name = "palmz72_pm",
 448         .suspend = palmz72_pm_suspend,
 449         .resume = palmz72_pm_resume,
 450 };
 451
 452 static struct sys_device palmz72_pm_device = {
 453         .cls = &palmz72_pm_sysclass,
 454 };
 455
 456 static int __init palmz72_pm_init(void)
 457 {
 458         int ret = -ENODEV;
 459         if (machine_is_palmz72()) {
 460                 ret = sysdev_class_register(&palmz72_pm_sysclass);
 461                 if (ret == 0)
 462                         ret = sysdev_register(&palmz72_pm_device);
 463         }
 464         return ret;
 465 }
 466
 467 device_initcall(palmz72_pm_init);
 468 #endif
 469
 470 /******************************************************************************
 471  * Machine init
 472  ******************************************************************************/
 473 static struct platform_device *devices[] __initdata = {
 474         &palmz72_backlight,
 475         &palmz72_leds,
 476         &palmz72_asoc,
 477         &power_supply,
 478         &palmz72_gpio_vbus,
 479 };
 480
 481 /* setup udc GPIOs initial state */
 482 static void __init palmz72_udc_init(void)
 483 {
 484         if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
 485                 gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
 486                 gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
 487         }
 488 }
 489
 490 static void __init palmz72_init(void)
 491 {
 492         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 493
 494         set_pxa_fb_info(&palmz72_lcd_screen);
 495         pxa_set_mci_info(&palmz72_mci_platform_data);
 496         palmz72_udc_init();
 497         pxa_set_ac97_info(NULL);
 498         pxa_set_ficp_info(&palmz72_ficp_platform_data);
 499         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 500         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 501
 502         platform_add_devices(devices, ARRAY_SIZE(devices));
 503 }
 504
 505 MACHINE_START(PALMZ72, "Palm Zire72")
 506         .phys_io        = 0x40000000,
 507         .io_pg_offst    = io_p2v(0x40000000),
 508         .boot_params    = 0xa0000100,
 509         .map_io         = pxa_map_io,
 510         .init_irq       = pxa27x_init_irq,
 511         .timer          = &pxa_timer,
 512         .init_machine   = palmz72_init
 513 MACHINE_END