arch/arm/mach-pxa/palmld.c

   1 /*
   2  * Hardware definitions for Palm LifeDrive
   3  *
   4  * Author:     Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Alex Osborne <ato@meshy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * (find more info at www.hackndev.com)
  14  *
  15  */
  16
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/irq.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input.h>
  22 #include <linux/pda_power.h>
  23 #include <linux/pwm_backlight.h>
  24 #include <linux/gpio.h>
  25 #include <linux/wm97xx_batt.h>
  26 #include <linux/power_supply.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include <mach/pxa27x.h>
  33 #include <mach/audio.h>
  34 #include <mach/palmld.h>
  35 #include <mach/mmc.h>
  36 #include <mach/pxafb.h>
  37 #include <mach/irda.h>
  38 #include <mach/pxa27x_keypad.h>
  39 #include <mach/palmasoc.h>
  40
  41 #include "generic.h"
  42 #include "devices.h"
  43
  44 /******************************************************************************
  45  * Pin configuration
  46  ******************************************************************************/
  47 static unsigned long palmld_pin_config[] __initdata = {
  48         /* MMC */
  49         GPIO32_MMC_CLK,
  50         GPIO92_MMC_DAT_0,
  51         GPIO109_MMC_DAT_1,
  52         GPIO110_MMC_DAT_2,
  53         GPIO111_MMC_DAT_3,
  54         GPIO112_MMC_CMD,
  55         GPIO14_GPIO,    /* SD detect */
  56         GPIO114_GPIO,   /* SD power */
  57         GPIO116_GPIO,   /* SD r/o switch */
  58
  59         /* AC97 */
  60         GPIO28_AC97_BITCLK,
  61         GPIO29_AC97_SDATA_IN_0,
  62         GPIO30_AC97_SDATA_OUT,
  63         GPIO31_AC97_SYNC,
  64
  65         /* IrDA */
  66         GPIO108_GPIO,   /* ir disable */
  67         GPIO46_FICP_RXD,
  68         GPIO47_FICP_TXD,
  69
  70         /* MATRIX KEYPAD */
  71         GPIO100_KP_MKIN_0,
  72         GPIO101_KP_MKIN_1,
  73         GPIO102_KP_MKIN_2,
  74         GPIO97_KP_MKIN_3,
  75         GPIO103_KP_MKOUT_0,
  76         GPIO104_KP_MKOUT_1,
  77         GPIO105_KP_MKOUT_2,
  78
  79         /* LCD */
  80         GPIO58_LCD_LDD_0,
  81         GPIO59_LCD_LDD_1,
  82         GPIO60_LCD_LDD_2,
  83         GPIO61_LCD_LDD_3,
  84         GPIO62_LCD_LDD_4,
  85         GPIO63_LCD_LDD_5,
  86         GPIO64_LCD_LDD_6,
  87         GPIO65_LCD_LDD_7,
  88         GPIO66_LCD_LDD_8,
  89         GPIO67_LCD_LDD_9,
  90         GPIO68_LCD_LDD_10,
  91         GPIO69_LCD_LDD_11,
  92         GPIO70_LCD_LDD_12,
  93         GPIO71_LCD_LDD_13,
  94         GPIO72_LCD_LDD_14,
  95         GPIO73_LCD_LDD_15,
  96         GPIO74_LCD_FCLK,
  97         GPIO75_LCD_LCLK,
  98         GPIO76_LCD_PCLK,
  99         GPIO77_LCD_BIAS,
 100
 101         /* PWM */
 102         GPIO16_PWM0_OUT,
 103
 104         /* GPIO KEYS */
 105         GPIO10_GPIO,    /* hotsync button */
 106         GPIO12_GPIO,    /* power switch */
 107         GPIO15_GPIO,    /* lock switch */
 108
 109         /* LEDs */
 110         GPIO52_GPIO,    /* green led */
 111         GPIO94_GPIO,    /* orange led */
 112
 113         /* PCMCIA */
 114         GPIO48_nPOE,
 115         GPIO49_nPWE,
 116         GPIO50_nPIOR,
 117         GPIO51_nPIOW,
 118         GPIO85_nPCE_1,
 119         GPIO54_nPCE_2,
 120         GPIO79_PSKTSEL,
 121         GPIO55_nPREG,
 122         GPIO56_nPWAIT,
 123         GPIO57_nIOIS16,
 124         GPIO36_GPIO,    /* wifi power */
 125         GPIO38_GPIO,    /* wifi ready */
 126         GPIO81_GPIO,    /* wifi reset */
 127
 128         /* HDD */
 129         GPIO95_GPIO,    /* HDD irq */
 130         GPIO115_GPIO,   /* HDD power */
 131
 132         /* MISC */
 133         GPIO13_GPIO,    /* earphone detect */
 134 };
 135
 136 /******************************************************************************
 137  * SD/MMC card controller
 138  ******************************************************************************/
 139 static int palmld_mci_init(struct device *dev, irq_handler_t palmld_detect_int,
 140                                 void *data)
 141 {
 142         int err = 0;
 143
 144         /* Setup an interrupt for detecting card insert/remove events */
 145         err = gpio_request(GPIO_NR_PALMLD_SD_DETECT_N, "SD IRQ");
 146         if (err)
 147                 goto err;
 148         err = gpio_direction_input(GPIO_NR_PALMLD_SD_DETECT_N);
 149         if (err)
 150                 goto err2;
 151         err = request_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N),
 152                         palmld_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 153                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 154                         "SD/MMC card detect", data);
 155         if (err) {
 156                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 157                                 __func__);
 158                 goto err2;
 159         }
 160
 161         err = gpio_request(GPIO_NR_PALMLD_SD_POWER, "SD_POWER");
 162         if (err)
 163                 goto err3;
 164         err = gpio_direction_output(GPIO_NR_PALMLD_SD_POWER, 0);
 165         if (err)
 166                 goto err4;
 167
 168         err = gpio_request(GPIO_NR_PALMLD_SD_READONLY, "SD_READONLY");
 169         if (err)
 170                 goto err4;
 171         err = gpio_direction_input(GPIO_NR_PALMLD_SD_READONLY);
 172         if (err)
 173                 goto err5;
 174
 175         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 176
 177         return 0;
 178
 179 err5:
 180         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 181 err4:
 182         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 183 err3:
 184         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 185 err2:
 186         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 187 err:
 188         return err;
 189 }
 190
 191 static void palmld_mci_exit(struct device *dev, void *data)
 192 {
 193         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 194         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 195         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 196         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 197 }
 198
 199 static void palmld_mci_power(struct device *dev, unsigned int vdd)
 200 {
 201         struct pxamci_platform_data *p_d = dev->platform_data;
 202         gpio_set_value(GPIO_NR_PALMLD_SD_POWER, p_d->ocr_mask & (1 << vdd));
 203 }
 204
 205 static int palmld_mci_get_ro(struct device *dev)
 206 {
 207         return gpio_get_value(GPIO_NR_PALMLD_SD_READONLY);
 208 }
 209
 210 static struct pxamci_platform_data palmld_mci_platform_data = {
 211         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 212         .setpower       = palmld_mci_power,
 213         .get_ro         = palmld_mci_get_ro,
 214         .init           = palmld_mci_init,
 215         .exit           = palmld_mci_exit,
 216 };
 217
 218 /******************************************************************************
 219  * GPIO keyboard
 220  ******************************************************************************/
 221 static unsigned int palmld_matrix_keys[] = {
 222         KEY(0, 1, KEY_F2),
 223         KEY(0, 2, KEY_UP),
 224
 225         KEY(1, 0, KEY_F3),
 226         KEY(1, 1, KEY_F4),
 227         KEY(1, 2, KEY_RIGHT),
 228
 229         KEY(2, 0, KEY_F1),
 230         KEY(2, 1, KEY_F5),
 231         KEY(2, 2, KEY_DOWN),
 232
 233         KEY(3, 0, KEY_F6),
 234         KEY(3, 1, KEY_ENTER),
 235         KEY(3, 2, KEY_LEFT),
 236 };
 237
 238 static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
 239         .matrix_key_rows        = 4,
 240         .matrix_key_cols        = 3,
 241         .matrix_key_map         = palmld_matrix_keys,
 242         .matrix_key_map_size    = ARRAY_SIZE(palmld_matrix_keys),
 243
 244         .debounce_interval      = 30,
 245 };
 246
 247 /******************************************************************************
 248  * GPIO keys
 249  ******************************************************************************/
 250 static struct gpio_keys_button palmld_pxa_buttons[] = {
 251         {KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 252         {KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
 253         {KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
 254 };
 255
 256 static struct gpio_keys_platform_data palmld_pxa_keys_data = {
 257         .buttons        = palmld_pxa_buttons,
 258         .nbuttons       = ARRAY_SIZE(palmld_pxa_buttons),
 259 };
 260
 261 static struct platform_device palmld_pxa_keys = {
 262         .name   = "gpio-keys",
 263         .id     = -1,
 264         .dev    = {
 265                 .platform_data = &palmld_pxa_keys_data,
 266         },
 267 };
 268
 269 /******************************************************************************
 270  * Backlight
 271  ******************************************************************************/
 272 static int palmld_backlight_init(struct device *dev)
 273 {
 274         int ret;
 275
 276         ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
 277         if (ret)
 278                 goto err;
 279         ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
 280         if (ret)
 281                 goto err2;
 282         ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
 283         if (ret)
 284                 goto err2;
 285         ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
 286         if (ret)
 287                 goto err3;
 288
 289         return 0;
 290 err3:
 291         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 292 err2:
 293         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 294 err:
 295         return ret;
 296 }
 297
 298 static int palmld_backlight_notify(int brightness)
 299 {
 300         gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
 301         gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
 302         return brightness;
 303 }
 304
 305 static void palmld_backlight_exit(struct device *dev)
 306 {
 307         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 308         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 309 }
 310
 311 static struct platform_pwm_backlight_data palmld_backlight_data = {
 312         .pwm_id         = 0,
 313         .max_brightness = PALMLD_MAX_INTENSITY,
 314         .dft_brightness = PALMLD_MAX_INTENSITY,
 315         .pwm_period_ns  = PALMLD_PERIOD_NS,
 316         .init           = palmld_backlight_init,
 317         .notify         = palmld_backlight_notify,
 318         .exit           = palmld_backlight_exit,
 319 };
 320
 321 static struct platform_device palmld_backlight = {
 322         .name   = "pwm-backlight",
 323         .dev    = {
 324                 .parent         = &pxa27x_device_pwm0.dev,
 325                 .platform_data  = &palmld_backlight_data,
 326         },
 327 };
 328
 329 /******************************************************************************
 330  * IrDA
 331  ******************************************************************************/
 332 static int palmld_irda_startup(struct device *dev)
 333 {
 334         int err;
 335         err = gpio_request(GPIO_NR_PALMLD_IR_DISABLE, "IR DISABLE");
 336         if (err)
 337                 goto err;
 338         err = gpio_direction_output(GPIO_NR_PALMLD_IR_DISABLE, 1);
 339         if (err)
 340                 gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 341 err:
 342         return err;
 343 }
 344
 345 static void palmld_irda_shutdown(struct device *dev)
 346 {
 347         gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 348 }
 349
 350 static void palmld_irda_transceiver_mode(struct device *dev, int mode)
 351 {
 352         gpio_set_value(GPIO_NR_PALMLD_IR_DISABLE, mode & IR_OFF);
 353         pxa2xx_transceiver_mode(dev, mode);
 354 }
 355
 356 static struct pxaficp_platform_data palmld_ficp_platform_data = {
 357         .startup                = palmld_irda_startup,
 358         .shutdown               = palmld_irda_shutdown,
 359         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 360         .transceiver_mode       = palmld_irda_transceiver_mode,
 361 };
 362
 363 /******************************************************************************
 364  * LEDs
 365  ******************************************************************************/
 366 struct gpio_led gpio_leds[] = {
 367 {
 368         .name                   = "palmld:green:led",
 369         .default_trigger        = "none",
 370         .gpio                   = GPIO_NR_PALMLD_LED_GREEN,
 371 }, {
 372         .name                   = "palmld:amber:led",
 373         .default_trigger        = "none",
 374         .gpio                   = GPIO_NR_PALMLD_LED_AMBER,
 375 },
 376 };
 377
 378 static struct gpio_led_platform_data gpio_led_info = {
 379         .leds           = gpio_leds,
 380         .num_leds       = ARRAY_SIZE(gpio_leds),
 381 };
 382
 383 static struct platform_device palmld_leds = {
 384         .name   = "leds-gpio",
 385         .id     = -1,
 386         .dev    = {
 387                 .platform_data  = &gpio_led_info,
 388         }
 389 };
 390
 391 /******************************************************************************
 392  * Power supply
 393  ******************************************************************************/
 394 static int power_supply_init(struct device *dev)
 395 {
 396         int ret;
 397
 398         ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
 399         if (ret)
 400                 goto err1;
 401         ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
 402         if (ret)
 403                 goto err2;
 404
 405         ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
 406         if (ret)
 407                 goto err2;
 408         ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
 409         if (ret)
 410                 goto err3;
 411
 412         return 0;
 413
 414 err3:
 415         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 416 err2:
 417         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 418 err1:
 419         return ret;
 420 }
 421
 422 static int palmld_is_ac_online(void)
 423 {
 424         return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
 425 }
 426
 427 static int palmld_is_usb_online(void)
 428 {
 429         return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
 430 }
 431
 432 static void power_supply_exit(struct device *dev)
 433 {
 434         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 435         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 436 }
 437
 438 static char *palmld_supplicants[] = {
 439         "main-battery",
 440 };
 441
 442 static struct pda_power_pdata power_supply_info = {
 443         .init            = power_supply_init,
 444         .is_ac_online    = palmld_is_ac_online,
 445         .is_usb_online   = palmld_is_usb_online,
 446         .exit            = power_supply_exit,
 447         .supplied_to     = palmld_supplicants,
 448         .num_supplicants = ARRAY_SIZE(palmld_supplicants),
 449 };
 450
 451 static struct platform_device power_supply = {
 452         .name = "pda-power",
 453         .id   = -1,
 454         .dev  = {
 455                 .platform_data = &power_supply_info,
 456         },
 457 };
 458
 459 /******************************************************************************
 460  * WM97xx battery
 461  ******************************************************************************/
 462 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 463         .batt_aux       = WM97XX_AUX_ID3,
 464         .temp_aux       = WM97XX_AUX_ID2,
 465         .charge_gpio    = -1,
 466         .max_voltage    = PALMLD_BAT_MAX_VOLTAGE,
 467         .min_voltage    = PALMLD_BAT_MIN_VOLTAGE,
 468         .batt_mult      = 1000,
 469         .batt_div       = 414,
 470         .temp_mult      = 1,
 471         .temp_div       = 1,
 472         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 473         .batt_name      = "main-batt",
 474 };
 475
 476 /******************************************************************************
 477  * aSoC audio
 478  ******************************************************************************/
 479 static struct palm27x_asoc_info palm27x_asoc_pdata = {
 480         .jack_gpio      = GPIO_NR_PALMLD_EARPHONE_DETECT,
 481 };
 482
 483 /******************************************************************************
 484  * Framebuffer
 485  ******************************************************************************/
 486 static struct pxafb_mode_info palmld_lcd_modes[] = {
 487 {
 488         .pixclock       = 57692,
 489         .xres           = 320,
 490         .yres           = 480,
 491         .bpp            = 16,
 492
 493         .left_margin    = 32,
 494         .right_margin   = 1,
 495         .upper_margin   = 7,
 496         .lower_margin   = 1,
 497
 498         .hsync_len      = 4,
 499         .vsync_len      = 1,
 500 },
 501 };
 502
 503 static struct pxafb_mach_info palmld_lcd_screen = {
 504         .modes          = palmld_lcd_modes,
 505         .num_modes      = ARRAY_SIZE(palmld_lcd_modes),
 506         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 507 };
 508
 509 /******************************************************************************
 510  * Machine init
 511  ******************************************************************************/
 512 static struct platform_device *devices[] __initdata = {
 513 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 514         &palmld_pxa_keys,
 515 #endif
 516         &palmld_backlight,
 517         &palmld_leds,
 518         &power_supply,
 519 };
 520
 521 static struct map_desc palmld_io_desc[] __initdata = {
 522 {
 523         .virtual        = PALMLD_IDE_VIRT,
 524         .pfn            = __phys_to_pfn(PALMLD_IDE_PHYS),
 525         .length         = PALMLD_IDE_SIZE,
 526         .type           = MT_DEVICE
 527 },
 528 {
 529         .virtual        = PALMLD_USB_VIRT,
 530         .pfn            = __phys_to_pfn(PALMLD_USB_PHYS),
 531         .length         = PALMLD_USB_SIZE,
 532         .type           = MT_DEVICE
 533 },
 534 };
 535
 536 static void __init palmld_map_io(void)
 537 {
 538         pxa_map_io();
 539         iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
 540 }
 541
 542 static void __init palmld_init(void)
 543 {
 544         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
 545
 546         set_pxa_fb_info(&palmld_lcd_screen);
 547         pxa_set_mci_info(&palmld_mci_platform_data);
 548         pxa_set_ac97_info(NULL);
 549         pxa_set_ficp_info(&palmld_ficp_platform_data);
 550         pxa_set_keypad_info(&palmld_keypad_platform_data);
 551         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 552         palm27x_asoc_set_pdata(&palm27x_asoc_pdata);
 553
 554         platform_add_devices(devices, ARRAY_SIZE(devices));
 555 }
 556
 557 MACHINE_START(PALMLD, "Palm LifeDrive")
 558         .phys_io        = PALMLD_PHYS_IO_START,
 559         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 560         .boot_params    = 0xa0000100,
 561         .map_io         = palmld_map_io,
 562         .init_irq       = pxa27x_init_irq,
 563         .timer          = &pxa_timer,
 564         .init_machine   = palmld_init
 565 MACHINE_END