arch/arm/mach-pxa/palmte2.c

   1 /*
   2  * Hardware definitions for Palm Tungsten|E2
   3  *
   4  * Author:
   5  *      Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
   6  *
   7  * Rewrite for mainline:
   8  *      Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * (find more info at www.hackndev.com)
  15  *
  16  */
  17
  18 #include <linux/platform_device.h>
  19 #include <linux/delay.h>
  20 #include <linux/irq.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input.h>
  23 #include <linux/pda_power.h>
  24 #include <linux/pwm_backlight.h>
  25 #include <linux/gpio.h>
  26 #include <linux/wm97xx_batt.h>
  27 #include <linux/power_supply.h>
  28 #include <linux/usb/gpio_vbus.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/audio.h>
  35 #include <mach/palmte2.h>
  36 #include <mach/mmc.h>
  37 #include <mach/pxafb.h>
  38 #include <mach/mfp-pxa25x.h>
  39 #include <mach/irda.h>
  40 #include <mach/udc.h>
  41 #include <mach/palmasoc.h>
  42
  43 #include "generic.h"
  44 #include "devices.h"
  45
  46 /******************************************************************************
  47  * Pin configuration
  48  ******************************************************************************/
  49 static unsigned long palmte2_pin_config[] __initdata = {
  50         /* MMC */
  51         GPIO6_MMC_CLK,
  52         GPIO8_MMC_CS0,
  53         GPIO10_GPIO,    /* SD detect */
  54         GPIO55_GPIO,    /* SD power */
  55         GPIO51_GPIO,    /* SD r/o switch */
  56
  57         /* AC97 */
  58         GPIO28_AC97_BITCLK,
  59         GPIO29_AC97_SDATA_IN_0,
  60         GPIO30_AC97_SDATA_OUT,
  61         GPIO31_AC97_SYNC,
  62
  63         /* PWM */
  64         GPIO16_PWM0_OUT,
  65
  66         /* USB */
  67         GPIO15_GPIO,    /* usb detect */
  68         GPIO53_GPIO,    /* usb power */
  69
  70         /* IrDA */
  71         GPIO48_GPIO,    /* ir disable */
  72         GPIO46_FICP_RXD,
  73         GPIO47_FICP_TXD,
  74
  75         /* LCD */
  76         GPIO58_LCD_LDD_0,
  77         GPIO59_LCD_LDD_1,
  78         GPIO60_LCD_LDD_2,
  79         GPIO61_LCD_LDD_3,
  80         GPIO62_LCD_LDD_4,
  81         GPIO63_LCD_LDD_5,
  82         GPIO64_LCD_LDD_6,
  83         GPIO65_LCD_LDD_7,
  84         GPIO66_LCD_LDD_8,
  85         GPIO67_LCD_LDD_9,
  86         GPIO68_LCD_LDD_10,
  87         GPIO69_LCD_LDD_11,
  88         GPIO70_LCD_LDD_12,
  89         GPIO71_LCD_LDD_13,
  90         GPIO72_LCD_LDD_14,
  91         GPIO73_LCD_LDD_15,
  92         GPIO74_LCD_FCLK,
  93         GPIO75_LCD_LCLK,
  94         GPIO76_LCD_PCLK,
  95         GPIO77_LCD_BIAS,
  96
  97         /* GPIO KEYS */
  98         GPIO5_GPIO,     /* notes */
  99         GPIO7_GPIO,     /* tasks */
 100         GPIO11_GPIO,    /* calendar */
 101         GPIO13_GPIO,    /* contacts */
 102         GPIO14_GPIO,    /* center */
 103         GPIO19_GPIO,    /* left */
 104         GPIO20_GPIO,    /* right */
 105         GPIO21_GPIO,    /* down */
 106         GPIO22_GPIO,    /* up */
 107
 108         /* MISC */
 109         GPIO1_RST,      /* reset */
 110         GPIO4_GPIO,     /* Hotsync button */
 111         GPIO9_GPIO,     /* power detect */
 112         GPIO15_GPIO,    /* earphone detect */
 113         GPIO37_GPIO,    /* LCD power */
 114         GPIO56_GPIO,    /* Backlight power */
 115 };
 116
 117 /******************************************************************************
 118  * SD/MMC card controller
 119  ******************************************************************************/
 120 static int palmte2_mci_init(struct device *dev,
 121                                 irq_handler_t palmte2_detect_int, void *data)
 122 {
 123         int err = 0;
 124
 125         /* Setup an interrupt for detecting card insert/remove events */
 126         err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ");
 127         if (err)
 128                 goto err;
 129         err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N);
 130         if (err)
 131                 goto err2;
 132         err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N),
 133                         palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 134                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 135                         "SD/MMC card detect", data);
 136         if (err) {
 137                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 138                                 __func__);
 139                 goto err2;
 140         }
 141
 142         err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER");
 143         if (err)
 144                 goto err3;
 145         err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0);
 146         if (err)
 147                 goto err4;
 148
 149         err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY");
 150         if (err)
 151                 goto err4;
 152         err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY);
 153         if (err)
 154                 goto err5;
 155
 156         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 157
 158         return 0;
 159
 160 err5:
 161         gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
 162 err4:
 163         gpio_free(GPIO_NR_PALMTE2_SD_POWER);
 164 err3:
 165         free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
 166 err2:
 167         gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
 168 err:
 169         return err;
 170 }
 171
 172 static void palmte2_mci_exit(struct device *dev, void *data)
 173 {
 174         gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
 175         gpio_free(GPIO_NR_PALMTE2_SD_POWER);
 176         free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
 177         gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
 178 }
 179
 180 static void palmte2_mci_power(struct device *dev, unsigned int vdd)
 181 {
 182         struct pxamci_platform_data *p_d = dev->platform_data;
 183         gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd));
 184 }
 185
 186 static int palmte2_mci_get_ro(struct device *dev)
 187 {
 188         return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY);
 189 }
 190
 191 static struct pxamci_platform_data palmte2_mci_platform_data = {
 192         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 193         .setpower       = palmte2_mci_power,
 194         .get_ro         = palmte2_mci_get_ro,
 195         .init           = palmte2_mci_init,
 196         .exit           = palmte2_mci_exit,
 197 };
 198
 199 /******************************************************************************
 200  * GPIO keys
 201  ******************************************************************************/
 202 static struct gpio_keys_button palmte2_pxa_buttons[] = {
 203         {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 204         {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 205         {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 206         {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 207         {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 208         {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 209         {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 210         {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 211         {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 212 };
 213
 214 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 215         .buttons        = palmte2_pxa_buttons,
 216         .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 217 };
 218
 219 static struct platform_device palmte2_pxa_keys = {
 220         .name   = "gpio-keys",
 221         .id     = -1,
 222         .dev    = {
 223                 .platform_data = &palmte2_pxa_keys_data,
 224         },
 225 };
 226
 227 /******************************************************************************
 228  * Backlight
 229  ******************************************************************************/
 230 static int palmte2_backlight_init(struct device *dev)
 231 {
 232         int ret;
 233
 234         ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
 235         if (ret)
 236                 goto err;
 237         ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
 238         if (ret)
 239                 goto err2;
 240         ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
 241         if (ret)
 242                 goto err2;
 243         ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
 244         if (ret)
 245                 goto err3;
 246
 247         return 0;
 248 err3:
 249         gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 250 err2:
 251         gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 252 err:
 253         return ret;
 254 }
 255
 256 static int palmte2_backlight_notify(int brightness)
 257 {
 258         gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 259         gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 260         return brightness;
 261 }
 262
 263 static void palmte2_backlight_exit(struct device *dev)
 264 {
 265         gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 266         gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 267 }
 268
 269 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 270         .pwm_id         = 0,
 271         .max_brightness = PALMTE2_MAX_INTENSITY,
 272         .dft_brightness = PALMTE2_MAX_INTENSITY,
 273         .pwm_period_ns  = PALMTE2_PERIOD_NS,
 274         .init           = palmte2_backlight_init,
 275         .notify         = palmte2_backlight_notify,
 276         .exit           = palmte2_backlight_exit,
 277 };
 278
 279 static struct platform_device palmte2_backlight = {
 280         .name   = "pwm-backlight",
 281         .dev    = {
 282                 .parent         = &pxa25x_device_pwm0.dev,
 283                 .platform_data  = &palmte2_backlight_data,
 284         },
 285 };
 286
 287 /******************************************************************************
 288  * IrDA
 289  ******************************************************************************/
 290 static int palmte2_irda_startup(struct device *dev)
 291 {
 292         int err;
 293         err = gpio_request(GPIO_NR_PALMTE2_IR_DISABLE, "IR DISABLE");
 294         if (err)
 295                 goto err;
 296         err = gpio_direction_output(GPIO_NR_PALMTE2_IR_DISABLE, 1);
 297         if (err)
 298                 gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
 299 err:
 300         return err;
 301 }
 302
 303 static void palmte2_irda_shutdown(struct device *dev)
 304 {
 305         gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
 306 }
 307
 308 static void palmte2_irda_transceiver_mode(struct device *dev, int mode)
 309 {
 310         gpio_set_value(GPIO_NR_PALMTE2_IR_DISABLE, mode & IR_OFF);
 311         pxa2xx_transceiver_mode(dev, mode);
 312 }
 313
 314 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 315         .startup                = palmte2_irda_startup,
 316         .shutdown               = palmte2_irda_shutdown,
 317         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 318         .transceiver_mode       = palmte2_irda_transceiver_mode,
 319 };
 320
 321 /******************************************************************************
 322  * UDC
 323  ******************************************************************************/
 324 static struct gpio_vbus_mach_info palmte2_udc_info = {
 325         .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 326         .gpio_vbus_inverted     = 1,
 327         .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 328 };
 329
 330 static struct platform_device palmte2_gpio_vbus = {
 331         .name   = "gpio-vbus",
 332         .id     = -1,
 333         .dev    = {
 334                 .platform_data  = &palmte2_udc_info,
 335         },
 336 };
 337
 338 /******************************************************************************
 339  * Power supply
 340  ******************************************************************************/
 341 static int power_supply_init(struct device *dev)
 342 {
 343         int ret;
 344
 345         ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 346         if (ret)
 347                 goto err1;
 348         ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 349         if (ret)
 350                 goto err2;
 351
 352         return 0;
 353
 354 err2:
 355         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 356 err1:
 357         return ret;
 358 }
 359
 360 static int palmte2_is_ac_online(void)
 361 {
 362         return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 363 }
 364
 365 static void power_supply_exit(struct device *dev)
 366 {
 367         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 368 }
 369
 370 static char *palmte2_supplicants[] = {
 371         "main-battery",
 372 };
 373
 374 static struct pda_power_pdata power_supply_info = {
 375         .init            = power_supply_init,
 376         .is_ac_online    = palmte2_is_ac_online,
 377         .exit            = power_supply_exit,
 378         .supplied_to     = palmte2_supplicants,
 379         .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 380 };
 381
 382 static struct platform_device power_supply = {
 383         .name = "pda-power",
 384         .id   = -1,
 385         .dev  = {
 386                 .platform_data = &power_supply_info,
 387         },
 388 };
 389
 390 /******************************************************************************
 391  * WM97xx battery
 392  ******************************************************************************/
 393 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 394         .batt_aux       = WM97XX_AUX_ID3,
 395         .temp_aux       = WM97XX_AUX_ID2,
 396         .charge_gpio    = -1,
 397         .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 398         .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 399         .batt_mult      = 1000,
 400         .batt_div       = 414,
 401         .temp_mult      = 1,
 402         .temp_div       = 1,
 403         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 404         .batt_name      = "main-batt",
 405 };
 406
 407 /******************************************************************************
 408  * aSoC audio
 409  ******************************************************************************/
 410 static struct palm27x_asoc_info palmte2_asoc_pdata = {
 411         .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 412 };
 413
 414 static struct platform_device palmte2_asoc = {
 415         .name = "palm27x-asoc",
 416         .id   = -1,
 417         .dev  = {
 418                 .platform_data = &palmte2_asoc_pdata,
 419         },
 420 };
 421
 422 /******************************************************************************
 423  * Framebuffer
 424  ******************************************************************************/
 425 static struct pxafb_mode_info palmte2_lcd_modes[] = {
 426 {
 427         .pixclock       = 77757,
 428         .xres           = 320,
 429         .yres           = 320,
 430         .bpp            = 16,
 431
 432         .left_margin    = 28,
 433         .right_margin   = 7,
 434         .upper_margin   = 7,
 435         .lower_margin   = 5,
 436
 437         .hsync_len      = 4,
 438         .vsync_len      = 1,
 439 },
 440 };
 441
 442 static struct pxafb_mach_info palmte2_lcd_screen = {
 443         .modes          = palmte2_lcd_modes,
 444         .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 445         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 446 };
 447
 448 /******************************************************************************
 449  * Machine init
 450  ******************************************************************************/
 451 static struct platform_device *devices[] __initdata = {
 452 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 453         &palmte2_pxa_keys,
 454 #endif
 455         &palmte2_backlight,
 456         &power_supply,
 457         &palmte2_asoc,
 458         &palmte2_gpio_vbus,
 459 };
 460
 461 /* setup udc GPIOs initial state */
 462 static void __init palmte2_udc_init(void)
 463 {
 464         if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 465                 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 466                 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 467         }
 468 }
 469
 470 static void __init palmte2_init(void)
 471 {
 472         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 473
 474         set_pxa_fb_info(&palmte2_lcd_screen);
 475         pxa_set_mci_info(&palmte2_mci_platform_data);
 476         palmte2_udc_init();
 477         pxa_set_ac97_info(NULL);
 478         pxa_set_ficp_info(&palmte2_ficp_platform_data);
 479         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 480
 481         platform_add_devices(devices, ARRAY_SIZE(devices));
 482 }
 483
 484 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 485         .phys_io        = 0x40000000,
 486         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 487         .boot_params    = 0xa0000100,
 488         .map_io         = pxa_map_io,
 489         .init_irq       = pxa25x_init_irq,
 490         .timer          = &pxa_timer,
 491         .init_machine   = palmte2_init
 492 MACHINE_END