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
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <mach/pxa27x.h>
  36 #include <mach/audio.h>
  37 #include <mach/palmtx.h>
  38 #include <mach/mmc.h>
  39 #include <mach/pxafb.h>
  40 #include <mach/irda.h>
  41 #include <mach/pxa27x_keypad.h>
  42 #include <mach/udc.h>
  43 #include <mach/palmasoc.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /******************************************************************************
  49  * Pin configuration
  50  ******************************************************************************/
  51 static unsigned long palmtx_pin_config[] __initdata = {
  52         /* MMC */
  53         GPIO32_MMC_CLK,
  54         GPIO92_MMC_DAT_0,
  55         GPIO109_MMC_DAT_1,
  56         GPIO110_MMC_DAT_2,
  57         GPIO111_MMC_DAT_3,
  58         GPIO112_MMC_CMD,
  59         GPIO14_GPIO,    /* SD detect */
  60         GPIO114_GPIO,   /* SD power */
  61         GPIO115_GPIO,   /* SD r/o switch */
  62
  63         /* AC97 */
  64         GPIO28_AC97_BITCLK,
  65         GPIO29_AC97_SDATA_IN_0,
  66         GPIO30_AC97_SDATA_OUT,
  67         GPIO31_AC97_SYNC,
  68         GPIO95_AC97_nRESET,
  69
  70         /* IrDA */
  71         GPIO40_GPIO,    /* ir disable */
  72         GPIO46_FICP_RXD,
  73         GPIO47_FICP_TXD,
  74
  75         /* PWM */
  76         GPIO16_PWM0_OUT,
  77
  78         /* USB */
  79         GPIO13_GPIO,    /* usb detect */
  80         GPIO93_GPIO,    /* usb power */
  81
  82         /* PCMCIA */
  83         GPIO48_nPOE,
  84         GPIO49_nPWE,
  85         GPIO50_nPIOR,
  86         GPIO51_nPIOW,
  87         GPIO85_nPCE_1,
  88         GPIO54_nPCE_2,
  89         GPIO79_PSKTSEL,
  90         GPIO55_nPREG,
  91         GPIO56_nPWAIT,
  92         GPIO57_nIOIS16,
  93         GPIO94_GPIO,    /* wifi power 1 */
  94         GPIO108_GPIO,   /* wifi power 2 */
  95         GPIO116_GPIO,   /* wifi ready */
  96
  97         /* MATRIX KEYPAD */
  98         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  99         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
 100         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
 101         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
 102         GPIO103_KP_MKOUT_0,
 103         GPIO104_KP_MKOUT_1,
 104         GPIO105_KP_MKOUT_2,
 105
 106         /* LCD */
 107         GPIO58_LCD_LDD_0,
 108         GPIO59_LCD_LDD_1,
 109         GPIO60_LCD_LDD_2,
 110         GPIO61_LCD_LDD_3,
 111         GPIO62_LCD_LDD_4,
 112         GPIO63_LCD_LDD_5,
 113         GPIO64_LCD_LDD_6,
 114         GPIO65_LCD_LDD_7,
 115         GPIO66_LCD_LDD_8,
 116         GPIO67_LCD_LDD_9,
 117         GPIO68_LCD_LDD_10,
 118         GPIO69_LCD_LDD_11,
 119         GPIO70_LCD_LDD_12,
 120         GPIO71_LCD_LDD_13,
 121         GPIO72_LCD_LDD_14,
 122         GPIO73_LCD_LDD_15,
 123         GPIO74_LCD_FCLK,
 124         GPIO75_LCD_LCLK,
 125         GPIO76_LCD_PCLK,
 126         GPIO77_LCD_BIAS,
 127
 128         /* MISC. */
 129         GPIO10_GPIO,    /* hotsync button */
 130         GPIO12_GPIO,    /* power detect */
 131         GPIO107_GPIO,   /* earphone detect */
 132 };
 133
 134 /******************************************************************************
 135  * SD/MMC card controller
 136  ******************************************************************************/
 137 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
 138                                 void *data)
 139 {
 140         int err = 0;
 141
 142         /* Setup an interrupt for detecting card insert/remove events */
 143         err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ");
 144         if (err)
 145                 goto err;
 146         err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
 147         if (err)
 148                 goto err2;
 149         err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
 150                         palmtx_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 151                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 152                         "SD/MMC card detect", data);
 153         if (err) {
 154                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 155                                 __func__);
 156                 goto err2;
 157         }
 158
 159         err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
 160         if (err)
 161                 goto err3;
 162         err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
 163         if (err)
 164                 goto err4;
 165
 166         err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
 167         if (err)
 168                 goto err4;
 169         err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY);
 170         if (err)
 171                 goto err5;
 172
 173         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 174
 175         return 0;
 176
 177 err5:
 178         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 179 err4:
 180         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 181 err3:
 182         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 183 err2:
 184         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 185 err:
 186         return err;
 187 }
 188
 189 static void palmtx_mci_exit(struct device *dev, void *data)
 190 {
 191         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 192         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 193         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 194         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 195 }
 196
 197 static void palmtx_mci_power(struct device *dev, unsigned int vdd)
 198 {
 199         struct pxamci_platform_data *p_d = dev->platform_data;
 200         gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
 201 }
 202
 203 static int palmtx_mci_get_ro(struct device *dev)
 204 {
 205         return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
 206 }
 207
 208 static struct pxamci_platform_data palmtx_mci_platform_data = {
 209         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 210         .setpower       = palmtx_mci_power,
 211         .get_ro         = palmtx_mci_get_ro,
 212         .init           = palmtx_mci_init,
 213         .exit           = palmtx_mci_exit,
 214 };
 215
 216 /******************************************************************************
 217  * GPIO keyboard
 218  ******************************************************************************/
 219 static unsigned int palmtx_matrix_keys[] = {
 220         KEY(0, 0, KEY_POWER),
 221         KEY(0, 1, KEY_F1),
 222         KEY(0, 2, KEY_ENTER),
 223
 224         KEY(1, 0, KEY_F2),
 225         KEY(1, 1, KEY_F3),
 226         KEY(1, 2, KEY_F4),
 227
 228         KEY(2, 0, KEY_UP),
 229         KEY(2, 2, KEY_DOWN),
 230
 231         KEY(3, 0, KEY_RIGHT),
 232         KEY(3, 2, KEY_LEFT),
 233 };
 234
 235 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 236         .matrix_key_rows        = 4,
 237         .matrix_key_cols        = 3,
 238         .matrix_key_map         = palmtx_matrix_keys,
 239         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 240
 241         .debounce_interval      = 30,
 242 };
 243
 244 /******************************************************************************
 245  * GPIO keys
 246  ******************************************************************************/
 247 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 248         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 249 };
 250
 251 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 252         .buttons        = palmtx_pxa_buttons,
 253         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 254 };
 255
 256 static struct platform_device palmtx_pxa_keys = {
 257         .name   = "gpio-keys",
 258         .id     = -1,
 259         .dev    = {
 260                 .platform_data = &palmtx_pxa_keys_data,
 261         },
 262 };
 263
 264 /******************************************************************************
 265  * Backlight
 266  ******************************************************************************/
 267 static int palmtx_backlight_init(struct device *dev)
 268 {
 269         int ret;
 270
 271         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 272         if (ret)
 273                 goto err;
 274         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 275         if (ret)
 276                 goto err2;
 277         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 278         if (ret)
 279                 goto err2;
 280         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 281         if (ret)
 282                 goto err3;
 283
 284         return 0;
 285 err3:
 286         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 287 err2:
 288         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 289 err:
 290         return ret;
 291 }
 292
 293 static int palmtx_backlight_notify(int brightness)
 294 {
 295         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 296         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 297         return brightness;
 298 }
 299
 300 static void palmtx_backlight_exit(struct device *dev)
 301 {
 302         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 303         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 304 }
 305
 306 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 307         .pwm_id         = 0,
 308         .max_brightness = PALMTX_MAX_INTENSITY,
 309         .dft_brightness = PALMTX_MAX_INTENSITY,
 310         .pwm_period_ns  = PALMTX_PERIOD_NS,
 311         .init           = palmtx_backlight_init,
 312         .notify         = palmtx_backlight_notify,
 313         .exit           = palmtx_backlight_exit,
 314 };
 315
 316 static struct platform_device palmtx_backlight = {
 317         .name   = "pwm-backlight",
 318         .dev    = {
 319                 .parent         = &pxa27x_device_pwm0.dev,
 320                 .platform_data  = &palmtx_backlight_data,
 321         },
 322 };
 323
 324 /******************************************************************************
 325  * IrDA
 326  ******************************************************************************/
 327 static int palmtx_irda_startup(struct device *dev)
 328 {
 329         int err;
 330         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 331         if (err)
 332                 goto err;
 333         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 334         if (err)
 335                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 336 err:
 337         return err;
 338 }
 339
 340 static void palmtx_irda_shutdown(struct device *dev)
 341 {
 342         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 343 }
 344
 345 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 346 {
 347         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 348         pxa2xx_transceiver_mode(dev, mode);
 349 }
 350
 351 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 352         .startup                = palmtx_irda_startup,
 353         .shutdown               = palmtx_irda_shutdown,
 354         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 355         .transceiver_mode       = palmtx_irda_transceiver_mode,
 356 };
 357
 358 /******************************************************************************
 359  * UDC
 360  ******************************************************************************/
 361 static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
 362         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 363         .gpio_vbus_inverted     = 1,
 364         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 365         .gpio_pullup_inverted   = 0,
 366 };
 367
 368 /******************************************************************************
 369  * Power supply
 370  ******************************************************************************/
 371 static int power_supply_init(struct device *dev)
 372 {
 373         int ret;
 374
 375         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 376         if (ret)
 377                 goto err1;
 378         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 379         if (ret)
 380                 goto err2;
 381
 382         return 0;
 383
 384 err2:
 385         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 386 err1:
 387         return ret;
 388 }
 389
 390 static int palmtx_is_ac_online(void)
 391 {
 392         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 393 }
 394
 395 static void power_supply_exit(struct device *dev)
 396 {
 397         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 398 }
 399
 400 static char *palmtx_supplicants[] = {
 401         "main-battery",
 402 };
 403
 404 static struct pda_power_pdata power_supply_info = {
 405         .init            = power_supply_init,
 406         .is_ac_online    = palmtx_is_ac_online,
 407         .exit            = power_supply_exit,
 408         .supplied_to     = palmtx_supplicants,
 409         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 410 };
 411
 412 static struct platform_device power_supply = {
 413         .name = "pda-power",
 414         .id   = -1,
 415         .dev  = {
 416                 .platform_data = &power_supply_info,
 417         },
 418 };
 419
 420 /******************************************************************************
 421  * WM97xx battery
 422  ******************************************************************************/
 423 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 424         .batt_aux       = WM97XX_AUX_ID3,
 425         .temp_aux       = WM97XX_AUX_ID2,
 426         .charge_gpio    = -1,
 427         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 428         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 429         .batt_mult      = 1000,
 430         .batt_div       = 414,
 431         .temp_mult      = 1,
 432         .temp_div       = 1,
 433         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 434         .batt_name      = "main-batt",
 435 };
 436
 437 /******************************************************************************
 438  * aSoC audio
 439  ******************************************************************************/
 440 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 441         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 442 };
 443
 444 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 445         .reset_gpio     = 95,
 446 };
 447
 448 static struct platform_device palmtx_asoc = {
 449         .name = "palm27x-asoc",
 450         .id   = -1,
 451         .dev  = {
 452                 .platform_data = &palmtx_asoc_pdata,
 453         },
 454 };
 455
 456 /******************************************************************************
 457  * Framebuffer
 458  ******************************************************************************/
 459 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 460 {
 461         .pixclock       = 57692,
 462         .xres           = 320,
 463         .yres           = 480,
 464         .bpp            = 16,
 465
 466         .left_margin    = 32,
 467         .right_margin   = 1,
 468         .upper_margin   = 7,
 469         .lower_margin   = 1,
 470
 471         .hsync_len      = 4,
 472         .vsync_len      = 1,
 473 },
 474 };
 475
 476 static struct pxafb_mach_info palmtx_lcd_screen = {
 477         .modes          = palmtx_lcd_modes,
 478         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 479         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 480 };
 481
 482 /******************************************************************************
 483  * Power management - standby
 484  ******************************************************************************/
 485 #ifdef CONFIG_PM
 486 static u32 *addr __initdata;
 487 static u32 resume[3] __initdata = {
 488         0xe3a00101,     /* mov  r0,     #0x40000000 */
 489         0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 490         0xe590f008,     /* ldr  pc, [r0, #0x08] */
 491 };
 492
 493 static int __init palmtx_pm_init(void)
 494 {
 495         int i;
 496
 497         /* this is where the bootloader jumps */
 498         addr = phys_to_virt(PALMTX_STR_BASE);
 499
 500         for (i = 0; i < 3; i++)
 501                 addr[i] = resume[i];
 502
 503         return 0;
 504 }
 505
 506 device_initcall(palmtx_pm_init);
 507 #endif
 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         &palmtx_pxa_keys,
 515 #endif
 516         &palmtx_backlight,
 517         &power_supply,
 518         &palmtx_asoc,
 519 };
 520
 521 static struct map_desc palmtx_io_desc[] __initdata = {
 522 {
 523         .virtual        = PALMTX_PCMCIA_VIRT,
 524         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 525         .length         = PALMTX_PCMCIA_SIZE,
 526         .type           = MT_DEVICE
 527 },
 528 };
 529
 530 static void __init palmtx_map_io(void)
 531 {
 532         pxa_map_io();
 533         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 534 }
 535
 536 /* setup udc GPIOs initial state */
 537 static void __init palmtx_udc_init(void)
 538 {
 539         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 540                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 541                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 542         }
 543 }
 544
 545
 546 static void __init palmtx_init(void)
 547 {
 548         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 549
 550         set_pxa_fb_info(&palmtx_lcd_screen);
 551         pxa_set_mci_info(&palmtx_mci_platform_data);
 552         palmtx_udc_init();
 553         pxa_set_ac97_info(&palmtx_ac97_pdata);
 554         pxa_set_udc_info(&palmtx_udc_info);
 555         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 556         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 557         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 558
 559         platform_add_devices(devices, ARRAY_SIZE(devices));
 560 }
 561
 562 MACHINE_START(PALMTX, "Palm T|X")
 563         .phys_io        = PALMTX_PHYS_IO_START,
 564         .io_pg_offst    = io_p2v(0x40000000),
 565         .boot_params    = 0xa0000100,
 566         .map_io         = palmtx_map_io,
 567         .init_irq       = pxa27x_init_irq,
 568         .timer          = &pxa_timer,
 569         .init_machine   = palmtx_init
 570 MACHINE_END