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         GPIOxx_LCD_TFT_16BPP,
  99
 100         GPIO20_GPIO,    /* bl power */
 101         GPIO21_GPIO,    /* LCD border switch */
 102         GPIO22_GPIO,    /* LCD border color */
 103         GPIO96_GPIO,    /* lcd power */
 104
 105         /* Misc. */
 106         GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 107         GPIO88_GPIO,                            /* green led */
 108         GPIO27_GPIO,                            /* WM9712 IRQ */
 109 };
 110
 111 /******************************************************************************
 112  * SD/MMC card controller
 113  ******************************************************************************/
 114 /* SD_POWER is not actually power, but it is more like chip
 115  * select, i.e. it is inverted */
 116 static struct pxamci_platform_data palmz72_mci_platform_data = {
 117         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 118         .gpio_card_detect       = GPIO_NR_PALMZ72_SD_DETECT_N,
 119         .gpio_card_ro           = GPIO_NR_PALMZ72_SD_RO,
 120         .gpio_power             = GPIO_NR_PALMZ72_SD_POWER_N,
 121         .gpio_power_invert      = 1,
 122 };
 123
 124 /******************************************************************************
 125  * GPIO keyboard
 126  ******************************************************************************/
 127 static unsigned int palmz72_matrix_keys[] = {
 128         KEY(0, 0, KEY_POWER),
 129         KEY(0, 1, KEY_F1),
 130         KEY(0, 2, KEY_ENTER),
 131
 132         KEY(1, 0, KEY_F2),
 133         KEY(1, 1, KEY_F3),
 134         KEY(1, 2, KEY_F4),
 135
 136         KEY(2, 0, KEY_UP),
 137         KEY(2, 2, KEY_DOWN),
 138
 139         KEY(3, 0, KEY_RIGHT),
 140         KEY(3, 2, KEY_LEFT),
 141 };
 142
 143 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 144         .matrix_key_rows        = 4,
 145         .matrix_key_cols        = 3,
 146         .matrix_key_map         = palmz72_matrix_keys,
 147         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 148
 149         .debounce_interval      = 30,
 150 };
 151
 152 /******************************************************************************
 153  * Backlight
 154  ******************************************************************************/
 155 static int palmz72_backlight_init(struct device *dev)
 156 {
 157         int ret;
 158
 159         ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
 160         if (ret)
 161                 goto err;
 162         ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
 163         if (ret)
 164                 goto err2;
 165         ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
 166         if (ret)
 167                 goto err2;
 168         ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
 169         if (ret)
 170                 goto err3;
 171
 172         return 0;
 173 err3:
 174         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 175 err2:
 176         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 177 err:
 178         return ret;
 179 }
 180
 181 static int palmz72_backlight_notify(struct device *dev, int brightness)
 182 {
 183         gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
 184         gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
 185         return brightness;
 186 }
 187
 188 static void palmz72_backlight_exit(struct device *dev)
 189 {
 190         gpio_free(GPIO_NR_PALMZ72_BL_POWER);
 191         gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
 192 }
 193
 194 static struct platform_pwm_backlight_data palmz72_backlight_data = {
 195         .pwm_id         = 0,
 196         .max_brightness = PALMZ72_MAX_INTENSITY,
 197         .dft_brightness = PALMZ72_MAX_INTENSITY,
 198         .pwm_period_ns  = PALMZ72_PERIOD_NS,
 199         .init           = palmz72_backlight_init,
 200         .notify         = palmz72_backlight_notify,
 201         .exit           = palmz72_backlight_exit,
 202 };
 203
 204 static struct platform_device palmz72_backlight = {
 205         .name   = "pwm-backlight",
 206         .dev    = {
 207                 .parent         = &pxa27x_device_pwm0.dev,
 208                 .platform_data  = &palmz72_backlight_data,
 209         },
 210 };
 211
 212 /******************************************************************************
 213  * IrDA
 214  ******************************************************************************/
 215 static struct pxaficp_platform_data palmz72_ficp_platform_data = {
 216         .gpio_pwdown            = GPIO_NR_PALMZ72_IR_DISABLE,
 217         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 218 };
 219
 220 /******************************************************************************
 221  * LEDs
 222  ******************************************************************************/
 223 static struct gpio_led gpio_leds[] = {
 224         {
 225                 .name                   = "palmz72:green:led",
 226                 .default_trigger        = "none",
 227                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 228         },
 229 };
 230
 231 static struct gpio_led_platform_data gpio_led_info = {
 232         .leds           = gpio_leds,
 233         .num_leds       = ARRAY_SIZE(gpio_leds),
 234 };
 235
 236 static struct platform_device palmz72_leds = {
 237         .name   = "leds-gpio",
 238         .id     = -1,
 239         .dev    = {
 240                 .platform_data  = &gpio_led_info,
 241         }
 242 };
 243
 244 /******************************************************************************
 245  * UDC
 246  ******************************************************************************/
 247 static struct gpio_vbus_mach_info palmz72_udc_info = {
 248         .gpio_vbus              = GPIO_NR_PALMZ72_USB_DETECT_N,
 249         .gpio_pullup            = GPIO_NR_PALMZ72_USB_PULLUP,
 250 };
 251
 252 static struct platform_device palmz72_gpio_vbus = {
 253         .name   = "gpio-vbus",
 254         .id     = -1,
 255         .dev    = {
 256                 .platform_data  = &palmz72_udc_info,
 257         },
 258 };
 259
 260 /******************************************************************************
 261  * Power supply
 262  ******************************************************************************/
 263 static int power_supply_init(struct device *dev)
 264 {
 265         int ret;
 266
 267         ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
 268         if (ret)
 269                 goto err1;
 270         ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
 271         if (ret)
 272                 goto err2;
 273
 274         ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
 275         if (ret)
 276                 goto err2;
 277         ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
 278         if (ret)
 279                 goto err3;
 280
 281         return 0;
 282 err3:
 283         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 284 err2:
 285         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 286 err1:
 287         return ret;
 288 }
 289
 290 static int palmz72_is_ac_online(void)
 291 {
 292         return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
 293 }
 294
 295 static int palmz72_is_usb_online(void)
 296 {
 297         return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
 298 }
 299
 300 static void power_supply_exit(struct device *dev)
 301 {
 302         gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
 303         gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
 304 }
 305
 306 static char *palmz72_supplicants[] = {
 307         "main-battery",
 308 };
 309
 310 static struct pda_power_pdata power_supply_info = {
 311         .init            = power_supply_init,
 312         .is_ac_online    = palmz72_is_ac_online,
 313         .is_usb_online   = palmz72_is_usb_online,
 314         .exit            = power_supply_exit,
 315         .supplied_to     = palmz72_supplicants,
 316         .num_supplicants = ARRAY_SIZE(palmz72_supplicants),
 317 };
 318
 319 static struct platform_device power_supply = {
 320         .name = "pda-power",
 321         .id   = -1,
 322         .dev  = {
 323                 .platform_data = &power_supply_info,
 324         },
 325 };
 326
 327 /******************************************************************************
 328  * WM97xx battery
 329  ******************************************************************************/
 330 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 331         .batt_aux       = WM97XX_AUX_ID3,
 332         .temp_aux       = WM97XX_AUX_ID2,
 333         .charge_gpio    = -1,
 334         .max_voltage    = PALMZ72_BAT_MAX_VOLTAGE,
 335         .min_voltage    = PALMZ72_BAT_MIN_VOLTAGE,
 336         .batt_mult      = 1000,
 337         .batt_div       = 414,
 338         .temp_mult      = 1,
 339         .temp_div       = 1,
 340         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 341         .batt_name      = "main-batt",
 342 };
 343
 344 /******************************************************************************
 345  * aSoC audio
 346  ******************************************************************************/
 347 static struct platform_device palmz72_asoc = {
 348         .name = "palm27x-asoc",
 349         .id   = -1,
 350 };
 351
 352 /******************************************************************************
 353  * Framebuffer
 354  ******************************************************************************/
 355 static struct pxafb_mode_info palmz72_lcd_modes[] = {
 356 {
 357         .pixclock       = 115384,
 358         .xres           = 320,
 359         .yres           = 320,
 360         .bpp            = 16,
 361
 362         .left_margin    = 27,
 363         .right_margin   = 7,
 364         .upper_margin   = 7,
 365         .lower_margin   = 8,
 366
 367         .hsync_len      = 6,
 368         .vsync_len      = 1,
 369 },
 370 };
 371
 372 static struct pxafb_mach_info palmz72_lcd_screen = {
 373         .modes          = palmz72_lcd_modes,
 374         .num_modes      = ARRAY_SIZE(palmz72_lcd_modes),
 375         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 376 };
 377
 378 #ifdef CONFIG_PM
 379
 380 /* We have some black magic here
 381  * PalmOS ROM on recover expects special struct physical address
 382  * to be transferred via PSPR. Using this struct PalmOS restores
 383  * its state after sleep. As for Linux, we need to setup it the
 384  * same way. More than that, PalmOS ROM changes some values in memory.
 385  * For now only one location is found, which needs special treatment.
 386  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 387  * for reading backtraces for me :)
 388  */
 389
 390 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 391
 392 static struct palmz72_resume_info palmz72_resume_info = {
 393         .magic0 = 0xb4e6,
 394         .magic1 = 1,
 395
 396         /* reset state, MMU off etc */
 397         .arm_control = 0,
 398         .aux_control = 0,
 399         .ttb = 0,
 400         .domain_access = 0,
 401         .process_id = 0,
 402 };
 403
 404 static unsigned long store_ptr;
 405
 406 /* sys_device for Palm Zire 72 PM */
 407
 408 static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
 409 {
 410         /* setup the resume_info struct for the original bootloader */
 411         palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
 412
 413         /* Storing memory touched by ROM */
 414         store_ptr = *PALMZ72_SAVE_DWORD;
 415
 416         /* Setting PSPR to a proper value */
 417         PSPR = virt_to_phys(&palmz72_resume_info);
 418
 419         return 0;
 420 }
 421
 422 static int palmz72_pm_resume(struct sys_device *dev)
 423 {
 424         *PALMZ72_SAVE_DWORD = store_ptr;
 425         return 0;
 426 }
 427
 428 static struct sysdev_class palmz72_pm_sysclass = {
 429         .name = "palmz72_pm",
 430         .suspend = palmz72_pm_suspend,
 431         .resume = palmz72_pm_resume,
 432 };
 433
 434 static struct sys_device palmz72_pm_device = {
 435         .cls = &palmz72_pm_sysclass,
 436 };
 437
 438 static int __init palmz72_pm_init(void)
 439 {
 440         int ret = -ENODEV;
 441         if (machine_is_palmz72()) {
 442                 ret = sysdev_class_register(&palmz72_pm_sysclass);
 443                 if (ret == 0)
 444                         ret = sysdev_register(&palmz72_pm_device);
 445         }
 446         return ret;
 447 }
 448
 449 device_initcall(palmz72_pm_init);
 450 #endif
 451
 452 /******************************************************************************
 453  * Machine init
 454  ******************************************************************************/
 455 static struct platform_device *devices[] __initdata = {
 456         &palmz72_backlight,
 457         &palmz72_leds,
 458         &palmz72_asoc,
 459         &power_supply,
 460         &palmz72_gpio_vbus,
 461 };
 462
 463 /* setup udc GPIOs initial state */
 464 static void __init palmz72_udc_init(void)
 465 {
 466         if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
 467                 gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
 468                 gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
 469         }
 470 }
 471
 472 static void __init palmz72_init(void)
 473 {
 474         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 475
 476         pxa_set_ffuart_info(NULL);
 477         pxa_set_btuart_info(NULL);
 478         pxa_set_stuart_info(NULL);
 479
 480         set_pxa_fb_info(&palmz72_lcd_screen);
 481         pxa_set_mci_info(&palmz72_mci_platform_data);
 482         palmz72_udc_init();
 483         pxa_set_ac97_info(NULL);
 484         pxa_set_ficp_info(&palmz72_ficp_platform_data);
 485         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 486         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 487
 488         platform_add_devices(devices, ARRAY_SIZE(devices));
 489 }
 490
 491 MACHINE_START(PALMZ72, "Palm Zire72")
 492         .phys_io        = 0x40000000,
 493         .io_pg_offst    = io_p2v(0x40000000),
 494         .boot_params    = 0xa0000100,
 495         .map_io         = pxa_map_io,
 496         .init_irq       = pxa27x_init_irq,
 497         .timer          = &pxa_timer,
 498         .init_machine   = palmz72_init
 499 MACHINE_END