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         /* FFUART */
 131         GPIO34_FFUART_RXD,
 132         GPIO39_FFUART_TXD,
 133
 134         /* MISC. */
 135         GPIO10_GPIO,    /* hotsync button */
 136         GPIO12_GPIO,    /* power detect */
 137         GPIO107_GPIO,   /* earphone detect */
 138 };
 139
 140 /******************************************************************************
 141  * SD/MMC card controller
 142  ******************************************************************************/
 143 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
 144                                 void *data)
 145 {
 146         int err = 0;
 147
 148         /* Setup an interrupt for detecting card insert/remove events */
 149         err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ");
 150         if (err)
 151                 goto err;
 152         err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
 153         if (err)
 154                 goto err2;
 155         err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
 156                         palmtx_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 157                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 158                         "SD/MMC card detect", data);
 159         if (err) {
 160                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 161                                 __func__);
 162                 goto err2;
 163         }
 164
 165         err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
 166         if (err)
 167                 goto err3;
 168         err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
 169         if (err)
 170                 goto err4;
 171
 172         err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
 173         if (err)
 174                 goto err4;
 175         err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY);
 176         if (err)
 177                 goto err5;
 178
 179         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 180
 181         return 0;
 182
 183 err5:
 184         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 185 err4:
 186         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 187 err3:
 188         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 189 err2:
 190         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 191 err:
 192         return err;
 193 }
 194
 195 static void palmtx_mci_exit(struct device *dev, void *data)
 196 {
 197         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 198         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 199         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 200         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 201 }
 202
 203 static void palmtx_mci_power(struct device *dev, unsigned int vdd)
 204 {
 205         struct pxamci_platform_data *p_d = dev->platform_data;
 206         gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
 207 }
 208
 209 static int palmtx_mci_get_ro(struct device *dev)
 210 {
 211         return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
 212 }
 213
 214 static struct pxamci_platform_data palmtx_mci_platform_data = {
 215         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 216         .setpower       = palmtx_mci_power,
 217         .get_ro         = palmtx_mci_get_ro,
 218         .init           = palmtx_mci_init,
 219         .exit           = palmtx_mci_exit,
 220 };
 221
 222 /******************************************************************************
 223  * GPIO keyboard
 224  ******************************************************************************/
 225 static unsigned int palmtx_matrix_keys[] = {
 226         KEY(0, 0, KEY_POWER),
 227         KEY(0, 1, KEY_F1),
 228         KEY(0, 2, KEY_ENTER),
 229
 230         KEY(1, 0, KEY_F2),
 231         KEY(1, 1, KEY_F3),
 232         KEY(1, 2, KEY_F4),
 233
 234         KEY(2, 0, KEY_UP),
 235         KEY(2, 2, KEY_DOWN),
 236
 237         KEY(3, 0, KEY_RIGHT),
 238         KEY(3, 2, KEY_LEFT),
 239 };
 240
 241 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 242         .matrix_key_rows        = 4,
 243         .matrix_key_cols        = 3,
 244         .matrix_key_map         = palmtx_matrix_keys,
 245         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 246
 247         .debounce_interval      = 30,
 248 };
 249
 250 /******************************************************************************
 251  * GPIO keys
 252  ******************************************************************************/
 253 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 254         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 255 };
 256
 257 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 258         .buttons        = palmtx_pxa_buttons,
 259         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 260 };
 261
 262 static struct platform_device palmtx_pxa_keys = {
 263         .name   = "gpio-keys",
 264         .id     = -1,
 265         .dev    = {
 266                 .platform_data = &palmtx_pxa_keys_data,
 267         },
 268 };
 269
 270 /******************************************************************************
 271  * Backlight
 272  ******************************************************************************/
 273 static int palmtx_backlight_init(struct device *dev)
 274 {
 275         int ret;
 276
 277         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 278         if (ret)
 279                 goto err;
 280         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 281         if (ret)
 282                 goto err2;
 283         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 284         if (ret)
 285                 goto err2;
 286         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 287         if (ret)
 288                 goto err3;
 289
 290         return 0;
 291 err3:
 292         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 293 err2:
 294         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 295 err:
 296         return ret;
 297 }
 298
 299 static int palmtx_backlight_notify(int brightness)
 300 {
 301         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 302         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 303         return brightness;
 304 }
 305
 306 static void palmtx_backlight_exit(struct device *dev)
 307 {
 308         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 309         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 310 }
 311
 312 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 313         .pwm_id         = 0,
 314         .max_brightness = PALMTX_MAX_INTENSITY,
 315         .dft_brightness = PALMTX_MAX_INTENSITY,
 316         .pwm_period_ns  = PALMTX_PERIOD_NS,
 317         .init           = palmtx_backlight_init,
 318         .notify         = palmtx_backlight_notify,
 319         .exit           = palmtx_backlight_exit,
 320 };
 321
 322 static struct platform_device palmtx_backlight = {
 323         .name   = "pwm-backlight",
 324         .dev    = {
 325                 .parent         = &pxa27x_device_pwm0.dev,
 326                 .platform_data  = &palmtx_backlight_data,
 327         },
 328 };
 329
 330 /******************************************************************************
 331  * IrDA
 332  ******************************************************************************/
 333 static int palmtx_irda_startup(struct device *dev)
 334 {
 335         int err;
 336         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 337         if (err)
 338                 goto err;
 339         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 340         if (err)
 341                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 342 err:
 343         return err;
 344 }
 345
 346 static void palmtx_irda_shutdown(struct device *dev)
 347 {
 348         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 349 }
 350
 351 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 352 {
 353         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 354         pxa2xx_transceiver_mode(dev, mode);
 355 }
 356
 357 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 358         .startup                = palmtx_irda_startup,
 359         .shutdown               = palmtx_irda_shutdown,
 360         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 361         .transceiver_mode       = palmtx_irda_transceiver_mode,
 362 };
 363
 364 /******************************************************************************
 365  * UDC
 366  ******************************************************************************/
 367 static struct gpio_vbus_mach_info palmtx_udc_info = {
 368         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 369         .gpio_vbus_inverted     = 1,
 370         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 371 };
 372
 373 static struct platform_device palmtx_gpio_vbus = {
 374         .name   = "gpio-vbus",
 375         .id     = -1,
 376         .dev    = {
 377                 .platform_data  = &palmtx_udc_info,
 378         },
 379 };
 380
 381 /******************************************************************************
 382  * Power supply
 383  ******************************************************************************/
 384 static int power_supply_init(struct device *dev)
 385 {
 386         int ret;
 387
 388         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 389         if (ret)
 390                 goto err1;
 391         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 392         if (ret)
 393                 goto err2;
 394
 395         return 0;
 396
 397 err2:
 398         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 399 err1:
 400         return ret;
 401 }
 402
 403 static int palmtx_is_ac_online(void)
 404 {
 405         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 406 }
 407
 408 static void power_supply_exit(struct device *dev)
 409 {
 410         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 411 }
 412
 413 static char *palmtx_supplicants[] = {
 414         "main-battery",
 415 };
 416
 417 static struct pda_power_pdata power_supply_info = {
 418         .init            = power_supply_init,
 419         .is_ac_online    = palmtx_is_ac_online,
 420         .exit            = power_supply_exit,
 421         .supplied_to     = palmtx_supplicants,
 422         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 423 };
 424
 425 static struct platform_device power_supply = {
 426         .name = "pda-power",
 427         .id   = -1,
 428         .dev  = {
 429                 .platform_data = &power_supply_info,
 430         },
 431 };
 432
 433 /******************************************************************************
 434  * WM97xx battery
 435  ******************************************************************************/
 436 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 437         .batt_aux       = WM97XX_AUX_ID3,
 438         .temp_aux       = WM97XX_AUX_ID2,
 439         .charge_gpio    = -1,
 440         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 441         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 442         .batt_mult      = 1000,
 443         .batt_div       = 414,
 444         .temp_mult      = 1,
 445         .temp_div       = 1,
 446         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 447         .batt_name      = "main-batt",
 448 };
 449
 450 /******************************************************************************
 451  * aSoC audio
 452  ******************************************************************************/
 453 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 454         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 455 };
 456
 457 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 458         .reset_gpio     = 95,
 459 };
 460
 461 static struct platform_device palmtx_asoc = {
 462         .name = "palm27x-asoc",
 463         .id   = -1,
 464         .dev  = {
 465                 .platform_data = &palmtx_asoc_pdata,
 466         },
 467 };
 468
 469 /******************************************************************************
 470  * Framebuffer
 471  ******************************************************************************/
 472 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 473 {
 474         .pixclock       = 57692,
 475         .xres           = 320,
 476         .yres           = 480,
 477         .bpp            = 16,
 478
 479         .left_margin    = 32,
 480         .right_margin   = 1,
 481         .upper_margin   = 7,
 482         .lower_margin   = 1,
 483
 484         .hsync_len      = 4,
 485         .vsync_len      = 1,
 486 },
 487 };
 488
 489 static struct pxafb_mach_info palmtx_lcd_screen = {
 490         .modes          = palmtx_lcd_modes,
 491         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 492         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 493 };
 494
 495 /******************************************************************************
 496  * Power management - standby
 497  ******************************************************************************/
 498 static void __init palmtx_pm_init(void)
 499 {
 500         static u32 resume[] = {
 501                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 502                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 503                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 504         };
 505
 506         /* copy the bootloader */
 507         memcpy(phys_to_virt(PALMTX_STR_BASE), resume, sizeof(resume));
 508 }
 509
 510 /******************************************************************************
 511  * Machine init
 512  ******************************************************************************/
 513 static struct platform_device *devices[] __initdata = {
 514 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 515         &palmtx_pxa_keys,
 516 #endif
 517         &palmtx_backlight,
 518         &power_supply,
 519         &palmtx_asoc,
 520         &palmtx_gpio_vbus,
 521 };
 522
 523 static struct map_desc palmtx_io_desc[] __initdata = {
 524 {
 525         .virtual        = PALMTX_PCMCIA_VIRT,
 526         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 527         .length         = PALMTX_PCMCIA_SIZE,
 528         .type           = MT_DEVICE
 529 },
 530 };
 531
 532 static void __init palmtx_map_io(void)
 533 {
 534         pxa_map_io();
 535         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 536 }
 537
 538 /* setup udc GPIOs initial state */
 539 static void __init palmtx_udc_init(void)
 540 {
 541         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 542                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 543                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 544         }
 545 }
 546
 547
 548 static void __init palmtx_init(void)
 549 {
 550         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 551
 552         palmtx_pm_init();
 553         set_pxa_fb_info(&palmtx_lcd_screen);
 554         pxa_set_mci_info(&palmtx_mci_platform_data);
 555         palmtx_udc_init();
 556         pxa_set_ac97_info(&palmtx_ac97_pdata);
 557         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 558         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 559         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 560
 561         platform_add_devices(devices, ARRAY_SIZE(devices));
 562 }
 563
 564 MACHINE_START(PALMTX, "Palm T|X")
 565         .phys_io        = PALMTX_PHYS_IO_START,
 566         .io_pg_offst    = io_p2v(0x40000000),
 567         .boot_params    = 0xa0000100,
 568         .map_io         = palmtx_map_io,
 569         .init_irq       = pxa27x_init_irq,
 570         .timer          = &pxa_timer,
 571         .init_machine   = palmtx_init
 572 MACHINE_END