arch/arm/mach-pxa/palmtx.c

   1 /*
   2  * Hardware definitions for PalmTX
   3  *
   4  * Author:     Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Alex Osborne <ato@meshy.org>
   8  *              Cristiano P. <cristianop@users.sourceforge.net>
   9  *              Jan Herman <2hp@seznam.cz>
  10  *              Michal Hrusecky
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  *
  16  * (find more info at www.hackndev.com)
  17  *
  18  */
  19
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/irq.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/pda_power.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/gpio.h>
  28 #include <linux/wm97xx_batt.h>
  29 #include <linux/power_supply.h>
  30 #include <linux/usb/gpio_vbus.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <mach/pxa27x.h>
  37 #include <mach/audio.h>
  38 #include <mach/palmtx.h>
  39 #include <mach/mmc.h>
  40 #include <mach/pxafb.h>
  41 #include <mach/irda.h>
  42 #include <mach/pxa27x_keypad.h>
  43 #include <mach/udc.h>
  44 #include <mach/palmasoc.h>
  45
  46 #include "generic.h"
  47 #include "devices.h"
  48
  49 /******************************************************************************
  50  * Pin configuration
  51  ******************************************************************************/
  52 static unsigned long palmtx_pin_config[] __initdata = {
  53         /* MMC */
  54         GPIO32_MMC_CLK,
  55         GPIO92_MMC_DAT_0,
  56         GPIO109_MMC_DAT_1,
  57         GPIO110_MMC_DAT_2,
  58         GPIO111_MMC_DAT_3,
  59         GPIO112_MMC_CMD,
  60         GPIO14_GPIO,    /* SD detect */
  61         GPIO114_GPIO,   /* SD power */
  62         GPIO115_GPIO,   /* SD r/o switch */
  63
  64         /* AC97 */
  65         GPIO28_AC97_BITCLK,
  66         GPIO29_AC97_SDATA_IN_0,
  67         GPIO30_AC97_SDATA_OUT,
  68         GPIO31_AC97_SYNC,
  69         GPIO89_AC97_SYSCLK,
  70         GPIO95_AC97_nRESET,
  71
  72         /* IrDA */
  73         GPIO40_GPIO,    /* ir disable */
  74         GPIO46_FICP_RXD,
  75         GPIO47_FICP_TXD,
  76
  77         /* PWM */
  78         GPIO16_PWM0_OUT,
  79
  80         /* USB */
  81         GPIO13_GPIO,    /* usb detect */
  82         GPIO93_GPIO,    /* usb power */
  83
  84         /* PCMCIA */
  85         GPIO48_nPOE,
  86         GPIO49_nPWE,
  87         GPIO50_nPIOR,
  88         GPIO51_nPIOW,
  89         GPIO85_nPCE_1,
  90         GPIO54_nPCE_2,
  91         GPIO79_PSKTSEL,
  92         GPIO55_nPREG,
  93         GPIO56_nPWAIT,
  94         GPIO57_nIOIS16,
  95         GPIO94_GPIO,    /* wifi power 1 */
  96         GPIO108_GPIO,   /* wifi power 2 */
  97         GPIO116_GPIO,   /* wifi ready */
  98
  99         /* MATRIX KEYPAD */
 100         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
 101         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
 102         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
 103         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
 104         GPIO103_KP_MKOUT_0,
 105         GPIO104_KP_MKOUT_1,
 106         GPIO105_KP_MKOUT_2,
 107
 108         /* LCD */
 109         GPIO58_LCD_LDD_0,
 110         GPIO59_LCD_LDD_1,
 111         GPIO60_LCD_LDD_2,
 112         GPIO61_LCD_LDD_3,
 113         GPIO62_LCD_LDD_4,
 114         GPIO63_LCD_LDD_5,
 115         GPIO64_LCD_LDD_6,
 116         GPIO65_LCD_LDD_7,
 117         GPIO66_LCD_LDD_8,
 118         GPIO67_LCD_LDD_9,
 119         GPIO68_LCD_LDD_10,
 120         GPIO69_LCD_LDD_11,
 121         GPIO70_LCD_LDD_12,
 122         GPIO71_LCD_LDD_13,
 123         GPIO72_LCD_LDD_14,
 124         GPIO73_LCD_LDD_15,
 125         GPIO74_LCD_FCLK,
 126         GPIO75_LCD_LCLK,
 127         GPIO76_LCD_PCLK,
 128         GPIO77_LCD_BIAS,
 129
 130         /* MISC. */
 131         GPIO10_GPIO,    /* hotsync button */
 132         GPIO12_GPIO,    /* power detect */
 133         GPIO107_GPIO,   /* earphone detect */
 134 };
 135
 136 /******************************************************************************
 137  * SD/MMC card controller
 138  ******************************************************************************/
 139 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_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_PALMTX_SD_DETECT_N, "SD IRQ");
 146         if (err)
 147                 goto err;
 148         err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
 149         if (err)
 150                 goto err2;
 151         err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
 152                         palmtx_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_PALMTX_SD_POWER, "SD_POWER");
 162         if (err)
 163                 goto err3;
 164         err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
 165         if (err)
 166                 goto err4;
 167
 168         err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
 169         if (err)
 170                 goto err4;
 171         err = gpio_direction_input(GPIO_NR_PALMTX_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_PALMTX_SD_READONLY);
 181 err4:
 182         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 183 err3:
 184         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 185 err2:
 186         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 187 err:
 188         return err;
 189 }
 190
 191 static void palmtx_mci_exit(struct device *dev, void *data)
 192 {
 193         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 194         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 195         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 196         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 197 }
 198
 199 static void palmtx_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_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
 203 }
 204
 205 static int palmtx_mci_get_ro(struct device *dev)
 206 {
 207         return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
 208 }
 209
 210 static struct pxamci_platform_data palmtx_mci_platform_data = {
 211         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 212         .setpower       = palmtx_mci_power,
 213         .get_ro         = palmtx_mci_get_ro,
 214         .init           = palmtx_mci_init,
 215         .exit           = palmtx_mci_exit,
 216 };
 217
 218 /******************************************************************************
 219  * GPIO keyboard
 220  ******************************************************************************/
 221 static unsigned int palmtx_matrix_keys[] = {
 222         KEY(0, 0, KEY_POWER),
 223         KEY(0, 1, KEY_F1),
 224         KEY(0, 2, KEY_ENTER),
 225
 226         KEY(1, 0, KEY_F2),
 227         KEY(1, 1, KEY_F3),
 228         KEY(1, 2, KEY_F4),
 229
 230         KEY(2, 0, KEY_UP),
 231         KEY(2, 2, KEY_DOWN),
 232
 233         KEY(3, 0, KEY_RIGHT),
 234         KEY(3, 2, KEY_LEFT),
 235 };
 236
 237 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 238         .matrix_key_rows        = 4,
 239         .matrix_key_cols        = 3,
 240         .matrix_key_map         = palmtx_matrix_keys,
 241         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 242
 243         .debounce_interval      = 30,
 244 };
 245
 246 /******************************************************************************
 247  * GPIO keys
 248  ******************************************************************************/
 249 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 250         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 251 };
 252
 253 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 254         .buttons        = palmtx_pxa_buttons,
 255         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 256 };
 257
 258 static struct platform_device palmtx_pxa_keys = {
 259         .name   = "gpio-keys",
 260         .id     = -1,
 261         .dev    = {
 262                 .platform_data = &palmtx_pxa_keys_data,
 263         },
 264 };
 265
 266 /******************************************************************************
 267  * Backlight
 268  ******************************************************************************/
 269 static int palmtx_backlight_init(struct device *dev)
 270 {
 271         int ret;
 272
 273         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 274         if (ret)
 275                 goto err;
 276         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 277         if (ret)
 278                 goto err2;
 279         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 280         if (ret)
 281                 goto err2;
 282         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 283         if (ret)
 284                 goto err3;
 285
 286         return 0;
 287 err3:
 288         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 289 err2:
 290         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 291 err:
 292         return ret;
 293 }
 294
 295 static int palmtx_backlight_notify(int brightness)
 296 {
 297         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 298         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 299         return brightness;
 300 }
 301
 302 static void palmtx_backlight_exit(struct device *dev)
 303 {
 304         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 305         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 306 }
 307
 308 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 309         .pwm_id         = 0,
 310         .max_brightness = PALMTX_MAX_INTENSITY,
 311         .dft_brightness = PALMTX_MAX_INTENSITY,
 312         .pwm_period_ns  = PALMTX_PERIOD_NS,
 313         .init           = palmtx_backlight_init,
 314         .notify         = palmtx_backlight_notify,
 315         .exit           = palmtx_backlight_exit,
 316 };
 317
 318 static struct platform_device palmtx_backlight = {
 319         .name   = "pwm-backlight",
 320         .dev    = {
 321                 .parent         = &pxa27x_device_pwm0.dev,
 322                 .platform_data  = &palmtx_backlight_data,
 323         },
 324 };
 325
 326 /******************************************************************************
 327  * IrDA
 328  ******************************************************************************/
 329 static int palmtx_irda_startup(struct device *dev)
 330 {
 331         int err;
 332         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 333         if (err)
 334                 goto err;
 335         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 336         if (err)
 337                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 338 err:
 339         return err;
 340 }
 341
 342 static void palmtx_irda_shutdown(struct device *dev)
 343 {
 344         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 345 }
 346
 347 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 348 {
 349         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 350         pxa2xx_transceiver_mode(dev, mode);
 351 }
 352
 353 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 354         .startup                = palmtx_irda_startup,
 355         .shutdown               = palmtx_irda_shutdown,
 356         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 357         .transceiver_mode       = palmtx_irda_transceiver_mode,
 358 };
 359
 360 /******************************************************************************
 361  * UDC
 362  ******************************************************************************/
 363 static struct gpio_vbus_mach_info palmtx_udc_info = {
 364         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 365         .gpio_vbus_inverted     = 1,
 366         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 367 };
 368
 369 static struct platform_device palmtx_gpio_vbus = {
 370         .name   = "gpio-vbus",
 371         .id     = -1,
 372         .dev    = {
 373                 .platform_data  = &palmtx_udc_info,
 374         },
 375 };
 376
 377 /******************************************************************************
 378  * Power supply
 379  ******************************************************************************/
 380 static int power_supply_init(struct device *dev)
 381 {
 382         int ret;
 383
 384         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 385         if (ret)
 386                 goto err1;
 387         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 388         if (ret)
 389                 goto err2;
 390
 391         return 0;
 392
 393 err2:
 394         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 395 err1:
 396         return ret;
 397 }
 398
 399 static int palmtx_is_ac_online(void)
 400 {
 401         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 402 }
 403
 404 static void power_supply_exit(struct device *dev)
 405 {
 406         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 407 }
 408
 409 static char *palmtx_supplicants[] = {
 410         "main-battery",
 411 };
 412
 413 static struct pda_power_pdata power_supply_info = {
 414         .init            = power_supply_init,
 415         .is_ac_online    = palmtx_is_ac_online,
 416         .exit            = power_supply_exit,
 417         .supplied_to     = palmtx_supplicants,
 418         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 419 };
 420
 421 static struct platform_device power_supply = {
 422         .name = "pda-power",
 423         .id   = -1,
 424         .dev  = {
 425                 .platform_data = &power_supply_info,
 426         },
 427 };
 428
 429 /******************************************************************************
 430  * WM97xx battery
 431  ******************************************************************************/
 432 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 433         .batt_aux       = WM97XX_AUX_ID3,
 434         .temp_aux       = WM97XX_AUX_ID2,
 435         .charge_gpio    = -1,
 436         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 437         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 438         .batt_mult      = 1000,
 439         .batt_div       = 414,
 440         .temp_mult      = 1,
 441         .temp_div       = 1,
 442         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 443         .batt_name      = "main-batt",
 444 };
 445
 446 /******************************************************************************
 447  * aSoC audio
 448  ******************************************************************************/
 449 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 450         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 451 };
 452
 453 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 454         .reset_gpio     = 95,
 455 };
 456
 457 static struct platform_device palmtx_asoc = {
 458         .name = "palm27x-asoc",
 459         .id   = -1,
 460         .dev  = {
 461                 .platform_data = &palmtx_asoc_pdata,
 462         },
 463 };
 464
 465 /******************************************************************************
 466  * Framebuffer
 467  ******************************************************************************/
 468 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 469 {
 470         .pixclock       = 57692,
 471         .xres           = 320,
 472         .yres           = 480,
 473         .bpp            = 16,
 474
 475         .left_margin    = 32,
 476         .right_margin   = 1,
 477         .upper_margin   = 7,
 478         .lower_margin   = 1,
 479
 480         .hsync_len      = 4,
 481         .vsync_len      = 1,
 482 },
 483 };
 484
 485 static struct pxafb_mach_info palmtx_lcd_screen = {
 486         .modes          = palmtx_lcd_modes,
 487         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 488         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 489 };
 490
 491 /******************************************************************************
 492  * Power management - standby
 493  ******************************************************************************/
 494 static void __init palmtx_pm_init(void)
 495 {
 496         static u32 resume[] = {
 497                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 498                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 499                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 500         };
 501
 502         /* copy the bootloader */
 503         memcpy(phys_to_virt(PALMTX_STR_BASE), resume, sizeof(resume));
 504 }
 505
 506 /******************************************************************************
 507  * Machine init
 508  ******************************************************************************/
 509 static struct platform_device *devices[] __initdata = {
 510 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 511         &palmtx_pxa_keys,
 512 #endif
 513         &palmtx_backlight,
 514         &power_supply,
 515         &palmtx_asoc,
 516         &palmtx_gpio_vbus,
 517 };
 518
 519 static struct map_desc palmtx_io_desc[] __initdata = {
 520 {
 521         .virtual        = PALMTX_PCMCIA_VIRT,
 522         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 523         .length         = PALMTX_PCMCIA_SIZE,
 524         .type           = MT_DEVICE
 525 },
 526 };
 527
 528 static void __init palmtx_map_io(void)
 529 {
 530         pxa_map_io();
 531         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 532 }
 533
 534 /* setup udc GPIOs initial state */
 535 static void __init palmtx_udc_init(void)
 536 {
 537         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 538                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 539                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 540         }
 541 }
 542
 543
 544 static void __init palmtx_init(void)
 545 {
 546         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 547
 548         palmtx_pm_init();
 549         set_pxa_fb_info(&palmtx_lcd_screen);
 550         pxa_set_mci_info(&palmtx_mci_platform_data);
 551         palmtx_udc_init();
 552         pxa_set_ac97_info(&palmtx_ac97_pdata);
 553         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 554         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 555         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 556
 557         platform_add_devices(devices, ARRAY_SIZE(devices));
 558 }
 559
 560 MACHINE_START(PALMTX, "Palm T|X")
 561         .phys_io        = PALMTX_PHYS_IO_START,
 562         .io_pg_offst    = io_p2v(0x40000000),
 563         .boot_params    = 0xa0000100,
 564         .map_io         = palmtx_map_io,
 565         .init_irq       = pxa27x_init_irq,
 566         .timer          = &pxa_timer,
 567         .init_machine   = palmtx_init
 568 MACHINE_END